FIRST SOLAR, INC., 10-K filed on 2/21/2020
Annual Report
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Document and Entity Information Document - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2019
Feb. 14, 2020
Jun. 30, 2019
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 001-33156    
Entity Registrant Name First Solar, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-4623678    
Entity Address, Address Line One 350 West Washington Street, Suite 600    
Entity Address, City or Town Tempe    
Entity Address, State or Province AZ    
Entity Address, Postal Zip Code 85281    
City Area Code 602    
Local Phone Number 414-9300    
Title of 12(b) Security Common stock, $0.001 par value    
Trading Symbol FSLR    
Security Exchange Name NASDAQ    
Entity Well Known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 5.4
Entity Common Stock, Shares Outstanding   105,457,669  
Entity Central Index Key 0001274494    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 1,352,741 $ 1,403,562
Marketable securities 811,506 1,143,704
Accounts receivable trade, net 475,039 128,282
Accounts receivable, unbilled and retainage 183,473 458,166
Inventories 443,513 387,912
Balance of systems parts 53,583 56,906
Project assets 3,524 37,930
Prepaid expenses and other current assets 276,455 243,061
Total current assets 3,599,834 3,859,523
Property, plant and equipment, net 2,181,149 1,756,211
PV solar power systems, net 476,977 308,640
Project assets 333,596 460,499
Deferred tax assets, net 130,771 77,682
Restricted cash and investments 303,857 318,390
Goodwill 14,462 14,462
Intangible assets, net 64,543 74,162
Inventories 160,646 130,083
Notes receivable, affiliate 0 22,832
Other assets 249,854 98,878
Total assets 7,515,689 7,121,362
Current liabilities:    
Accounts payable 218,081 233,287
Income taxes payable 17,010 20,885
Accrued expenses 351,260 441,580
Current portion of long-term debt 17,510 5,570
Deferred revenue 323,217 129,755
Accrued litigation 363,000 0
Other current liabilities 28,130 14,380
Total current liabilities 1,318,208 845,457
Accrued solar module collection and recycling liability 137,761 134,442
Long-term debt 454,187 461,221
Other liabilities 508,766 467,839
Total liabilities 2,418,922 1,908,959
Commitments and contingencies
Stockholders' equity:    
Common stock, $0.001 par value per share; 500,000,000 shares authorized; 105,448,921 and 104,885,261 shares issued and outstanding at December 31, 2019 and 2018, respectively 105 105
Additional paid-in capital 2,849,376 2,825,211
Accumulated earnings 2,326,620 2,441,553
Accumulated other comprehensive loss (79,334) (54,466)
Total stockholders' equity 5,096,767 5,212,403
Total liabilities and stockholders' equity $ 7,515,689 $ 7,121,362
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Consolidated Balance Sheets Consolidated Balance Sheets (Parentheticals) - $ / shares
Dec. 31, 2019
Dec. 31, 2018
Common Stock, Par Value $ 0.001 $ 0.001
Common Stock, Shares Authorized 500,000,000 500,000,000
Common Stock, Shares Issued 105,448,921 104,885,261
Common Stock, Shares Outstanding 105,448,921 104,885,261
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Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Net sales $ 3,063,117 $ 2,244,044 $ 2,941,324
Cost of sales 2,513,905 1,851,867 2,392,377
Gross profit 549,212 392,177 548,947
Operating expenses:      
Selling, general and administrative 205,471 176,857 202,699
Research and development 96,611 84,472 88,573
Production start-up 45,915 90,735 42,643
Litigation loss 363,000 0 0
Restructuring and asset impairments 0 0 37,181
Total operating expenses 710,997 352,064 371,096
Operating (loss) income (161,785) 40,113 177,851
Foreign currency income (loss), net 2,291 (570) (9,640)
Interest income 48,886 59,788 35,704
Interest expense, net (27,066) (25,921) (25,765)
Other income, net 17,545 39,737 23,965
(Loss) income before taxes and equity in earnings (120,129) 113,147 202,115
Income tax benefit (expense) 5,480 (3,441) (371,996)
Equity in earnings, net of tax (284) 34,620 4,266
Net (loss) income $ (114,933) $ 144,326 $ (165,615)
Net (loss) income per share:      
Basic $ (1.09) $ 1.38 $ (1.59)
Diluted $ (1.09) $ 1.36 $ (1.59)
Weighted-average number of shares used in per share calculations:      
Basic 105,310 104,745 104,328
Diluted 105,310 106,113 104,328
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Consolidated Statements of Comprehensive Income Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Net (loss) income $ (114,933) $ 144,326 $ (165,615)
Foreign currency translation adjustments (7,049) (1,034) 11,832
Unrealized (loss) gain on marketable securities and restricted investments, net of tax of $3,046, $3,735, and $(588) (15,670) (57,747) 3,217
Unrealized (loss) gain on derivative instruments, net of tax of $142, $(996), and $1,396 (2,149) 2,056 (2,883)
Other comprehensive (loss) income (24,868) (56,725) 12,166
Comprehensive (loss) income (139,801) 87,601 (153,449)
Other comprehensive (loss) income, unrealized (loss) gain on marketable securities and restricted investments, tax 3,046 3,735 (588)
Other comprehensive (loss) income, unrealized (loss) gain on derivative instruments, tax $ 142 $ (996) $ 1,396
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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Earnings [Member]
Accumulated Other Comprehensive (Loss) Income [Member]
Common stock, shares at Dec. 31, 2016   104,035,000      
Stockholders' equity, beginning balance at Dec. 31, 2016 $ 5,218,349 $ 104 $ 2,765,310 $ 2,462,842 $ (9,907)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net (loss) income (165,615)     (165,615)  
Other comprehensive (loss) income 12,166       12,166
Common stock issued for share-based compensation, shares   580,000      
Common stock issued for share-based compensation 4,474 $ 0 4,474    
Tax withholding related to vesting of restricted stock, shares   (147,000)      
Tax withholding related to vesting of restricted stock (5,137) $ 0 (5,137)    
Share-based compensation expense 34,460   34,460    
Common stock, shares at Dec. 31, 2017   104,468,000      
Stockholders' equity, ending balance at Dec. 31, 2017 5,098,697 $ 104 2,799,107 2,297,227 2,259
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net (loss) income 144,326     144,326  
Other comprehensive (loss) income (56,725)       (56,725)
Common stock issued for share-based compensation, shares   588,000      
Common stock issued for share-based compensation 3,426 $ 1 3,425    
Tax withholding related to vesting of restricted stock, shares   (171,000)      
Tax withholding related to vesting of restricted stock (11,175) $ 0 (11,175)    
Share-based compensation expense $ 33,854   33,854    
Common stock, shares at Dec. 31, 2018 104,885,261 104,885,000      
Stockholders' equity, ending balance at Dec. 31, 2018 $ 5,212,403 $ 105 2,825,211 2,441,553 (54,466)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net (loss) income (114,933)     (114,933)  
Other comprehensive (loss) income (24,868)       (24,868)
Common stock issued for share-based compensation, shares   869,000      
Common stock issued for share-based compensation 3,434 $ 1 3,433    
Tax withholding related to vesting of restricted stock, shares   (305,000)      
Tax withholding related to vesting of restricted stock (16,090) $ (1) (16,089)    
Share-based compensation expense $ 36,821   36,821    
Common stock, shares at Dec. 31, 2019 105,448,921 105,449,000      
Stockholders' equity, ending balance at Dec. 31, 2019 $ 5,096,767 $ 105 $ 2,849,376 $ 2,326,620 $ (79,334)
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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:      
Net (loss) income $ (114,933) $ 144,326 $ (165,615)
Adjustments to reconcile net (loss) income to cash provided by (used in) operating activities:      
Depreciation, amortization and accretion 205,475 130,736 115,313
Impairments and net losses on disposal of long-lived assets 7,577 8,065 35,364
Share-based compensation 37,429 34,154 35,121
Equity in earnings, net of tax 284 (34,620) (4,266)
Distributions received from equity method investments 0 12,394 23,042
Remeasurement of monetary assets and liabilities 919 8,740 (15,823)
Deferred income taxes (59,917) (10,112) 173,368
Gains on sales of marketable securities and restricted investments (40,621) (55,405) (49)
Liabilities assumed by customers for the sale of systems (88,050) (240,865) (24,203)
Other, net 759 2,121 2,339
Changes in operating assets and liabilities      
Accounts receivable, trade, unbilled and retainage (73,594) (202,298) 85,760
Prepaid expenses and other current assets (34,528) (53,488) 26,680
Inventories and balance of systems parts (83,528) (257,229) 212,758
Project assets and PV solar power systems (20,773) 49,939 981,273
Other assets 28,728 (11,920) (1,269)
Income tax receivable and payable 8,035 (49,169) 169,079
Accounts payable (336) 96,443 (47,191)
Accrued expenses and other liabilities 397,527 132,382 (258,028)
Accrued solar module collection and recycling liability 3,748 (31,003) (2,976)
Net cash provided by (used in) operating activities 174,201 (326,809) 1,340,677
Cash flows from investing activities:      
Purchases of property, plant and equipment (668,717) (739,838) (514,357)
Purchases of marketable securities and restricted investments (1,177,336) (1,369,036) (580,971)
Proceeds from sales and maturities of marketable securities and restricted investments 1,486,631 1,135,984 466,309
Proceeds from sales of equity method investments 0 247,595 0
Payments received on notes receivable, affiliates 0 48,729 1,740
Other investing activities (2,876) (6,148) 477
Net cash used in investing activities (362,298) (682,714) (626,802)
Cash flows from financing activities:      
Repayment of long-term debt (30,099) (18,937) (24,078)
Proceeds from borrowings under long-term debt, net of discounts and issuance costs 120,132 290,925 215,415
Payments of tax withholdings for restricted shares (16,089) (11,175) (5,137)
Proceeds from commercial letters of credit 0 0 43,025
Contingent consideration payments and other financing activities 999 (5,585) (37,180)
Net cash provided by financing activities 74,943 255,228 192,045
Effect of exchange rate changes on cash, cash equivalents and restricted cash (2,959) (13,558) 8,866
Net (decrease) increase in cash, cash equivalents and restricted cash (116,113) (767,853) 914,786
Cash, cash equivalents and restricted cash, beginning of the period 1,562,623 2,330,476 1,415,690
Cash, cash equivalents and restricted cash, end of the period 1,446,510 1,562,623 2,330,476
Supplemental disclosure of noncash investing and financing activities:      
Property, plant and equipment acquisitions funded by liabilities 76,148 138,270 164,946
Sale of system previously accounted for as sale-leaseback financing 0 31,992 0
Accrued interest capitalized to long-term debt $ 0 $ 3,512 $ 18,401
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Note 1. First Solar and Its Business (Notes)
12 Months Ended
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
First Solar and Its Business
1. First Solar and Its Business

We are a leading global provider of comprehensive PV solar energy solutions. We design, manufacture, and sell PV solar modules with an advanced thin film semiconductor technology and also develop and sell PV solar power systems that primarily use the modules we manufacture. Additionally, we provide O&M services to system owners. We have substantial, ongoing R&D efforts focused on various technology innovations. We are the world’s largest thin film PV solar module manufacturer and one of the world’s largest PV solar module manufacturers.
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Note 2. Summary of Significant Accounting Policies (Notes)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies
2. Summary of Significant Accounting Policies

Basis of Presentation. These consolidated financial statements include the accounts of First Solar, Inc. and its subsidiaries and are prepared in accordance with U.S. GAAP. We eliminated all intercompany transactions and balances during consolidation. Certain prior year balances were reclassified to conform to the current year presentation.

Use of Estimates. The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and the accompanying notes. On an ongoing basis, we evaluate our estimates, including those related to inputs used to recognize revenue over time, accrued solar module collection and recycling liabilities, product warranties, accounting for income taxes, and long-lived asset impairments. Despite our intention to establish accurate estimates and reasonable assumptions, actual results could differ materially from such estimates and assumptions.

Fair Value Measurements. We measure certain assets and liabilities at fair value, which is defined as the price that would be received from the sale of an asset or paid to transfer a liability (i.e., an exit price) on the measurement date in an orderly transaction between market participants in the principal or most advantageous market for the asset or liability. Our fair value measurements use the following hierarchy, which prioritizes valuation inputs based on the extent to which the inputs are observable in the market.

Level 1 – Valuation techniques in which all significant inputs are unadjusted quoted prices from active markets for assets or liabilities that are identical to the assets or liabilities being measured.

Level 2 – Valuation techniques in which significant inputs include quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active. Also, model-derived valuations in which all significant inputs are observable in active markets are Level 2 valuation techniques.

Level 3 – Valuation techniques in which one or more significant inputs are unobservable. Such inputs reflect our estimate of assumptions that market participants would use to price an asset or liability.

Cash and Cash Equivalents. We consider highly liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents with the exception of time deposits, which are presented as marketable securities.

Restricted Cash. Restricted cash consists of cash and cash equivalents held by various banks to secure certain of our letters of credit and other such deposits designated for the construction or operation of systems projects as well as the payment of amounts related to project specific debt financings. Restricted cash also includes cash and cash equivalents held in custodial accounts to fund the estimated future costs of our solar module collection and recycling obligations.
Restricted cash for our letters of credit is classified as current or noncurrent based on the maturity date of the corresponding letter of credit. Restricted cash for project construction, operation, and financing is classified as current or noncurrent based on the intended use of the restricted funds. Restricted cash held in custodial accounts is classified as noncurrent to align with the nature of the corresponding collection and recycling liabilities.

Marketable Securities and Restricted Investments. We determine the classification of our marketable securities and restricted investments at the time of purchase and reevaluate such designation at each balance sheet date. As of December 31, 2019 and 2018, all of our marketable securities and restricted investments were classified as available-for-sale debt securities. Accordingly, we record them at fair value and account for the net unrealized gains and losses as part of “Accumulated other comprehensive loss” until realized. We record realized gains and losses on the sale of our marketable securities and restricted investments in “Other income, net” computed using the specific identification method.

We may sell marketable securities prior to their stated maturities after consideration of our liquidity requirements. We view unrestricted securities with maturities beyond 12 months as available to support our current operations and, accordingly, classify such securities as current assets under “Marketable securities” in the consolidated balance sheets. Restricted investments consist of long-term duration marketable securities that we hold in custodial accounts to fund the estimated future costs of our solar module collection and recycling obligations. Accordingly, we classify restricted investments as noncurrent assets under “Restricted cash and investments” in the consolidated balance sheets.

All of our available-for-sale marketable securities and restricted investments are subject to a periodic impairment review. We consider a marketable security or restricted investment to be impaired when its fair value is less than its cost basis, in which case we would further review the security or investment to determine if it is other-than-temporarily impaired. In performing such an evaluation, we review factors such as the length of time and the extent to which its fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, our intent to sell, and whether it is more likely than not that we will be required to sell the marketable security or restricted investment before we have recovered its cost basis. If a marketable security or restricted investment were other-than-temporarily impaired, we write it down through “Other income, net” to its impaired value and establish that value as its new cost basis.

Accounts Receivable Trade and Allowance for Doubtful Accounts. We record trade accounts receivable for our unconditional rights to consideration arising from our performance under contracts with customers. The carrying value of such receivables, net of the allowance for doubtful accounts, represents their estimated net realizable value. We estimate our allowance for doubtful accounts for specific trade receivable balances based on historical collection trends, the age of outstanding trade receivables, existing economic conditions, and the financial security, if any, associated with the receivables. Past-due trade receivable balances are written off when our internal collection efforts have been unsuccessful.

Our module and other equipment sales generally include up to 45-day payment terms following the transfer of control of the products to the customer. In addition, certain module and equipment sale agreements may require a down payment for a portion of the transaction price upon or shortly after entering into the agreement or related purchase order. Payment terms for sales of our solar power systems, EPC services, and operations and maintenance services vary by contract but are generally due upon demand or within several months of satisfying the associated performance obligations. As a practical expedient, we do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised product or service to a customer and when the customer pays for that product or service will be one year or less. We typically do not include extended payment terms in our contracts with customers.

Accounts Receivable, Unbilled. Accounts receivable, unbilled represents a contract asset for revenue that has been recognized in advance of billing the customer, which is common for long-term construction contracts. For example, we typically recognize revenue from contracts for the construction and sale of PV solar power systems over time using cost based input methods, which recognize revenue and gross profit as work is performed based on the relationship between actual costs incurred compared to the total estimated costs of the contract. Accordingly, revenue could be
recognized in advance of billing the customer, resulting in an amount recorded to “Accounts receivable, unbilled and retainage.” Once we have an unconditional right to consideration under a construction contract, we typically bill our customer and reclassify the “Accounts receivable, unbilled and retainage” to “Accounts receivable trade, net.” Billing requirements vary by contract but are generally structured around the completion of certain construction milestones. We assess our unbilled accounts receivable for impairment in accordance with the allowance for doubtful accounts policy described above.

Retainage. Certain of our EPC contracts for PV solar power systems we build contain retainage provisions. Retainage represents a contract asset for the portion of the contract price earned by us for work performed, but held for payment by the customer as a form of security until we reach certain construction milestones. We consider whether collectibility of such retainage is reasonably assured in connection with our overall assessment of the collectibility of amounts due or that will become due under our EPC contracts. Retainage included within “Accounts receivable, unbilled and retainage” is expected to be billed and collected within the next 12 months. After we satisfy the EPC contract requirements and have an unconditional right to consideration, we typically bill our customer for retainage and reclassify such amount to “Accounts receivable trade, net.”

Inventories – Current and Noncurrent. We report our inventories at the lower of cost or net realizable value. We determine cost on a first-in, first-out basis and include both the costs of acquisition and manufacturing in our inventory costs. These costs include direct materials, direct labor, and indirect manufacturing costs, including depreciation and amortization. Our capitalization of indirect costs is based on the normal utilization of our plants. If our plant utilization is abnormally low, the portion of our indirect manufacturing costs related to the abnormal utilization level is expensed as incurred. Other abnormal manufacturing costs, such as wasted materials or excess yield losses, are also expensed as incurred. Finished goods inventory is comprised exclusively of solar modules that have not yet been installed in a PV solar power plant under construction or sold to a third-party customer.

As needed, we may purchase a critical raw material that is used in our core production process in quantities that exceed anticipated consumption within our normal operating cycle, which is 12 months. We classify such raw materials that we do not expect to consume within our normal operating cycle as noncurrent.

We regularly review the cost of inventories, including noncurrent inventories, against their estimated net realizable value and record write-downs if any inventories have costs in excess of their net realizable values. We also regularly evaluate the quantities and values of our inventories, including noncurrent inventories, in light of current market conditions and trends, among other factors, and record write-downs for any quantities in excess of demand or for any obsolescence. This evaluation considers the use of modules in our systems business or product warranties, module selling prices, product obsolescence, strategic raw material requirements, and other factors.

Balance of Systems Parts. BoS parts represent mounting, electrical, and other parts purchased for the construction and maintenance of PV solar power systems. These parts, which are not yet installed in a system, may include posts, tilt brackets, tables, harnesses, combiner boxes, inverters, cables, tracker equipment, and other items that we may purchase or assemble for the systems we construct. We carry BoS parts at the lower of cost or net realizable value and determine their costs on a weighted-average basis. BoS parts do not include any solar modules that we manufacture.

Property, Plant and Equipment. We report our property, plant and equipment at cost, less accumulated depreciation. Cost includes the price paid to acquire or construct the assets, required installation costs, interest capitalized during the construction period, and any expenditures that substantially add to the value of or substantially extend the useful life of the assets. We capitalize costs related to computer software obtained or developed for internal use, which generally includes enterprise-level business and finance software that we customize to meet our specific operational requirements. We expense repair and maintenance costs at the time we incur them.

We begin depreciation for our property, plant and equipment when the assets are placed in service. We consider such assets to be placed in service when they are both in the location and condition for their intended use. We compute depreciation expense using the straight-line method over the estimated useful lives of assets, as presented in the table
below. We depreciate leasehold improvements over the shorter of their estimated useful lives or the remaining term of the lease. The estimated useful life of an asset is reassessed whenever applicable facts and circumstances indicate a change in the estimated useful life of such asset has occurred.
 
 
 
Useful Lives
in Years
Buildings and building improvements
 
25 – 40
Manufacturing machinery and equipment
 
5 – 15
Furniture, fixtures, computer hardware, and computer software
 
3 – 7
Leasehold improvements
 
up to 15


PV Solar Power Systems. PV solar power systems represent project assets that we may temporarily own and operate after being placed in service. We report our PV solar power systems at cost, less accumulated depreciation. When we are entitled to incentive tax credits for our systems, we reduce the related carrying value of the assets by the amount of the tax credits, which reduces future depreciation. We begin depreciation for PV solar power systems when they are placed in service. We compute depreciation expense for the systems using the straight-line method over the shorter of the term of the related PPA or 25 years. Accordingly, our current PV solar power systems have estimated useful lives ranging from 19 to 25 years.

Project Assets. Project assets primarily consist of costs related to solar power projects in various stages of development that are capitalized prior to the completion of the sale of the project, including projects that may have begun commercial operation under PPAs and are actively marketed and intended to be sold. These project related costs include costs for land, development, and construction of a PV solar power system. Development costs may include legal, consulting, permitting, transmission upgrade, interconnection, and other similar costs. We typically classify project assets as noncurrent due to the nature of solar power projects (as long-lived assets) and the time required to complete all activities to develop, construct, and sell projects, which is typically longer than 12 months. Once we enter into a definitive sales agreement, we classify project assets as current until the sale is completed and we have recognized the sale as revenue. Any income generated by a project while it remains within project assets is accounted for as a reduction to our basis in the project. If a project is completed and begins commercial operation prior to the closing of a sales arrangement, the completed project will remain in project assets until placed in service. We present all expenditures related to the development and construction of project assets, whether fully or partially owned, as a component of cash flows from operating activities.

We review project assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. We consider a project commercially viable or recoverable if it is anticipated to be sold for a profit once it is either fully developed or fully constructed. We consider a partially developed or partially constructed project commercially viable or recoverable if the anticipated selling price is higher than the carrying value of the related project assets. We examine a number of factors to determine if the project is expected to be recoverable, including whether there are any changes in environmental, permitting, market pricing, regulatory, or other conditions that may impact the project. Such changes could cause the costs of the project to increase or the selling price of the project to decrease. If a project is not considered recoverable, we impair the respective project assets and adjust the carrying value to the estimated fair value, with the resulting impairment recorded within “Selling, general and administrative” expense.

Interest Capitalization. We capitalize interest as part of the historical cost of acquiring, developing, or constructing certain assets, including property, plant and equipment; project assets; and PV solar power systems. Interest capitalized for property, plant and equipment or PV solar power systems is depreciated over the estimated useful life of the related assets when they are placed in service. We charge interest capitalized for project assets to cost of sales when such assets are sold. We capitalize interest to the extent that interest has been incurred and payments have been made to acquire, construct, or develop an asset. We cease capitalization of interest for assets in development or under construction if the assets are substantially complete or if we have sold such assets.

Asset Impairments. We assess long-lived assets classified as “held and used,” including our property, plant and equipment; PV solar power systems; project assets; operating lease assets; and intangible assets for impairment whenever events or changes in circumstances arise, including consideration of technological obsolescence, that may indicate that the carrying amount of such assets may not be recoverable. These events and changes in circumstances may include a significant decrease in the market price of a long-lived asset; a significant adverse change in the extent or manner in which a long-lived asset is being used or in its physical condition; a significant adverse change in the business climate that could affect the value of a long-lived asset; an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction of a long-lived asset; a current-period operating or cash flow loss combined with a history of such losses or a projection of future losses associated with the use of a long-lived asset; or a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. For purposes of recognition and measurement of an impairment loss, long-lived assets are grouped with other assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities.

When impairment indicators are present, we compare undiscounted future cash flows, including the eventual disposition of the asset group at market value, to the asset group’s carrying value to determine if the asset group is recoverable. If the carrying value of the asset group exceeds the undiscounted future cash flows, we measure any impairment by comparing the fair value of the asset group to its carrying value. Fair value is generally determined by considering (i) internally developed discounted cash flows for the asset group, (ii) third-party valuations, and/or (iii) information available regarding the current market value for such assets. If the fair value of an asset group is determined to be less than its carrying value, an impairment in the amount of the difference is recorded in the period that the impairment indicator occurs. Estimating future cash flows requires significant judgment, and such projections may vary from the cash flows eventually realized.

We consider a long-lived asset to be abandoned after we have ceased use of the asset and we have no intent to use or repurpose it in the future. Abandoned long-lived assets are recorded at their salvage value, if any.

We classify long-lived assets we plan to sell, excluding project assets and PV solar power systems, as held for sale on our consolidated balance sheets only after certain criteria have been met including: (i) management has the authority and commits to a plan to sell the asset, (ii) the asset is available for immediate sale in its present condition, (iii) an active program to locate a buyer and the plan to sell the asset have been initiated, (iv) the sale of the asset is probable within 12 months, (v) the asset is being actively marketed at a reasonable sales price relative to its current fair value, and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made. We record assets held for sale at the lower of their carrying value or fair value less costs to sell. If, due to unanticipated circumstances, such assets are not sold in the 12 months after being classified as held for sale, then held for sale classification would continue as long as the above criteria are still met.

Ventures and Variable Interest Entities. In the normal course of business, we establish wholly owned project companies which may be considered variable interest entities (“VIEs”). We consolidate wholly owned VIEs when we are considered the primary beneficiary of such entities. Additionally, we have, and may in the future form, joint venture type arrangements, including partnerships and partially owned limited liability companies or similar legal structures, with one or more third parties primarily to develop, construct, own, and/or sell solar power projects. We analyze all of our ventures and classify them into two groups: (i) ventures that must be consolidated because they are either not VIEs and we hold a majority voting interest, or because they are VIEs and we are the primary beneficiary and (ii) ventures that do not need to be consolidated because they are either not VIEs and we hold a minority voting interest, or because they are VIEs and we are not the primary beneficiary.

Ventures are considered VIEs if (i) the total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support; (ii) as a group, the holders of the equity investment at risk lack the ability to make certain decisions, the obligation to absorb expected losses, or the right to receive expected residual returns; or (iii) an equity investor has voting rights that are disproportionate to its economic interest and substantially all of the entity’s activities are conducted on behalf of that investor. Our venture agreements typically
require us to fund some form of capital for the development and construction of a project, depending upon the opportunity and the market in which our ventures are located.

We are considered the primary beneficiary of and are required to consolidate a VIE if we have the power to direct the activities that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the entity. If we determine that we do not have the power to direct the activities that most significantly impact the entity, then we are not the primary beneficiary of the VIE.

Equity Method Investments. We use the equity method of accounting for our investments when we have the ability to significantly influence, but not control, the operations or financial activities of the investee. As part of this evaluation, we consider our participating and protective rights in the venture as well as its legal form. We record our equity method investments at cost and subsequently adjust their carrying amount each period for our share of the earnings or losses of the investee and other adjustments required by the equity method of accounting. Distributions received from our equity method investments are recorded as reductions in the carrying value of such investments and are classified on the consolidated statements of cash flows pursuant to the cumulative earnings approach. Under this approach, distributions received are considered returns on investment and are classified as cash inflows from operating activities unless our cumulative distributions received, less distributions received in prior periods that were determined to be returns of investment, exceed our cumulative equity in earnings recognized from the investment. When such an excess occurs, the current period distributions up to this excess are considered returns of investment and are classified as cash inflows from investing activities.

We monitor equity method investments for impairment and record reductions in their carrying values if the carrying amount of an investment exceeds its fair value. An impairment charge is recorded when such impairment is deemed to be other-than-temporary. To determine whether an impairment is other-than-temporary, we consider our ability and intent to hold the investment until the carrying amount is fully recovered. Circumstances that indicate an other-than-temporary impairment may have occurred include factors such as decreases in quoted market prices or declines in the operations of the investee. The evaluation of an investment for potential impairment requires us to exercise significant judgment and to make certain assumptions. The use of different judgments and assumptions could result in different conclusions. We recorded impairment losses related to our equity method investments of $3.5 million and $2.0 million, net of tax, during the years ended December 31, 2018 and 2017, respectively.

Goodwill. Goodwill represents the excess of the purchase price of acquired businesses over the estimated fair value assigned to the individual assets acquired and liabilities assumed. We do not amortize goodwill, but instead are required to test goodwill for impairment at least annually. We perform impairment tests between the scheduled annual test in the fourth quarter if facts and circumstances indicate that it is more likely than not that the fair value of a reporting unit that has goodwill is less than its carrying value.

We may first make a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying value to determine whether it is necessary to perform a quantitative goodwill impairment test. Such qualitative impairment test considers various factors, including macroeconomic conditions, industry and market considerations, cost factors, the overall financial performance of a reporting unit, and any other relevant events affecting our company or a reporting unit. If we determine through the qualitative assessment that a reporting unit’s fair value is more likely than not greater than its carrying value, the quantitative impairment test is not required. If the qualitative assessment indicates it is more likely than not that a reporting unit’s fair value is less than its carrying value, we perform a quantitative impairment test. We may also elect to proceed directly to the quantitative impairment test without considering qualitative factors.

The quantitative impairment test is the comparison of the fair value of a reporting unit with its carrying amount, including goodwill. Our reporting units consist of our modules and systems businesses. We define the fair value of a reporting unit as the price that would be received to sell the unit as a whole in an orderly transaction between market participants at the measurement date. We primarily use an income approach to estimate the fair value of our reporting units. Significant
judgment is required when estimating the fair value of a reporting unit, including the forecasting of future operating results and the selection of discount and expected future growth rates used to determine projected cash flows. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill is not impaired, and no further analysis is required. Conversely, if the carrying value of a reporting unit exceeds its estimated fair value, we record an impairment loss equal to the excess, not to exceed the total amount of goodwill allocated to the reporting unit.

Intangible Assets. Intangible assets primarily include developed technologies, certain PPAs acquired after the associated PV solar power systems were placed in service, and our internally-generated intangible assets, substantially all of which were patents on technologies related to our products and production processes. We record an asset for patents after the patent has been issued based on the legal, filing, and other costs incurred to secure it. We amortize intangible assets on a straight-line basis over their estimated useful lives, which generally range from 10 to 20 years.

Leases. Upon commencement of a lease, we recognize a lease liability for the present value of the lease payments not yet paid, discounted using an interest rate that represents our ability to borrow on a collateralized basis over a period that approximates the lease term. We also recognize a lease asset, which represents our right to control the use of the underlying property, plant or equipment, at an amount equal to the lease liability, adjusted for prepayments and initial direct costs.

We subsequently recognize the cost of operating leases on a straight-line basis over the lease term, and any variable lease costs, which represent amounts owed to the lessor that are not fixed per the terms of the contract, are recognized in the period in which they are incurred. Any costs included in our lease arrangements that are not directly related to the leased assets, such as maintenance charges, are included as part of the lease costs. Leases with an initial term of one year or less are considered short-term leases and are not recognized as lease assets and liabilities. We also recognize the cost of such short-term leases on a straight-line basis over the term of the underlying agreement.

Many of our leases, in particular those related to systems project land, contain renewal or termination options that are exercisable at our discretion. At the commencement date of a lease, we include in the lease term any periods covered by a renewal option, and exclude from the lease term any periods covered by a termination option, to the extent we are reasonably certain to exercise such options. In making this determination, we seek to align the lease term with the expected economic life of the underlying asset.

Deferred Revenue. When we receive consideration, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a sales contract, we record deferred revenue, which represents a contract liability. Such deferred revenue typically results from billings in excess of costs incurred on long-term construction contracts and advance payments received on sales of solar modules. As a practical expedient, we do not adjust the consideration in a contract for the effects of a significant financing component when we expect, at contract inception, that the period between a customer’s advance payment and our transfer of a promised product or service to the customer will be one year or less. Additionally, we do not adjust the consideration in a contract for the effects of a significant financing component when the consideration is received as a form of performance security.

Product Warranties. We provide a limited PV solar module warranty covering defects in materials and workmanship under normal use and service conditions for approximately 10 years. We also typically warrant that modules installed in accordance with agreed-upon specifications will produce at least 98% of their labeled power output rating during the first year, with the warranty coverage reducing by 0.5% every year thereafter throughout the approximate 25-year limited power output warranty period. In resolving claims under both the limited defect and power output warranties, we typically have the option of either repairing or replacing the covered modules or, under the limited power output warranty, providing additional modules to remedy the power shortfall. Our limited module warranties also include an option for us to remedy claims under such warranties, generally exercisable only after the second year of the warranty period, by making certain cash payments. Under the limited workmanship warranty, the optional cash payment will be equal to the original purchase price of the module, reduced by a degradation factor, and under the limited power output warranty, the cash payment will be equal to the shortfall in power output. Such limited module warranties are standard
for module sales and may be transferred from the original purchasers of the solar modules to subsequent purchasers upon resale.

As an alternative form of our standard limited module power output warranty, we also offer an aggregated or system-level limited module performance warranty. This system-level limited module performance warranty is designed for utility-scale systems and provides 25-year system-level energy degradation protection. This warranty represents a practical expedient to address the challenge of identifying, from the potential millions of modules installed in a utility-scale system, individual modules that may be performing below warranty thresholds by focusing on the aggregate energy generated by the system rather than the power output of individual modules. The system-level limited module performance warranty is typically calculated as a percentage of a system’s expected energy production, adjusted for certain actual site conditions, with the warranted level of performance declining each year in a linear fashion, but never falling below 80% during the term of the warranty. In resolving claims under the system-level limited module performance warranty to restore the system to warranted performance levels, we first must validate that the root cause of the issue is due to module performance; we then have the option of either repairing or replacing the covered modules, providing supplemental modules, or making a cash payment. Consistent with our limited module power output warranty, when we elect to satisfy a warranty claim by providing replacement or supplemental modules under the system-level module performance warranty, we do not have any obligation to pay for the labor to remove or install modules.

In addition to our limited solar module warranties described above, for PV solar power systems we construct, we typically provide limited warranties for defects in engineering design, installation, and BoS part workmanship for a period of one to two years following the substantial completion of a system or a block within the system. In resolving claims under such BoS warranties, we have the option of remedying the defect through repair or replacement.

When we recognize revenue for module or system sales, we accrue liabilities for the estimated future costs of meeting our limited warranty obligations. We make and revise these estimates based primarily on the number of solar modules under warranty installed at customer locations, our historical experience with and projections of warranty claims, and our estimated per-module replacement costs. We also monitor our expected future module performance through certain quality and reliability testing and actual performance in certain field installation sites.

Accrued Solar Module Collection and Recycling Liability. Historically, we recognized expense at the time of sale for the estimated cost of our future obligations for collecting and recycling solar modules covered by our solar module collection and recycling program. See Note 12. “Solar Module Collection and Recycling Liability” for further information.

Derivative Instruments. We recognize derivative instruments on our consolidated balance sheets at their fair value. On the date that we enter into a derivative contract, we designate the derivative instrument as a fair value hedge, a cash flow hedge, a hedge of a net investment in a foreign operation, or a derivative instrument that will not be accounted for using hedge accounting methods. As of December 31, 2019 and 2018, all of our derivative instruments were designated either as cash flow hedges or as derivative instruments not accounted for using hedge accounting methods.

We record changes in the fair value of a derivative instrument that is highly effective and that is designated and qualifies as a cash flow hedge in “Accumulated other comprehensive loss” until our earnings are affected by the variability of the cash flows from the underlying hedged item. We record any amounts excluded from effectiveness testing in current period earnings in the same income statement line item in which the earnings effect of the hedged item is reported. We report changes in the fair value of derivative instruments that are not designated or do not qualify for hedge accounting in current period earnings. We classify cash flows from derivative instruments on the consolidated statements of cash flows in the same category as the item being hedged or on a basis consistent with the nature of the instrument.

At the inception of a hedge, we formally document all relationships between hedging instruments and the underlying hedged items as well as our risk-management objective and strategy for undertaking the hedge transaction. We also formally assess (both at inception and on an ongoing basis) whether our derivative instruments are highly effective in offsetting changes in the fair value or cash flows of the underlying hedged items and whether those derivatives are
expected to remain highly effective in future periods. When we determine that a derivative instrument is not highly effective as a hedge, we discontinue hedge accounting prospectively. In all situations in which we discontinue hedge accounting and the derivative instrument remains outstanding, we carry the derivative instrument at its fair value on our consolidated balance sheets and recognize subsequent changes in its fair value in current period earnings.

Revenue Recognition – Module and Other Equipment Sales. We recognize revenue for module and other equipment sales (e.g., module plus arrangements) at a point in time following the transfer of control of such products to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contracts. For module and other equipment sales contracts that contain multiple performance obligations, such as the shipment or delivery of solar modules and other BoS parts, we allocate the transaction price to each performance obligation identified in the contract based on relative standalone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product is transferred to the customer, in satisfaction of the corresponding performance obligations.

Revenue Recognition – Solar Power System Sales and/or EPC Services. We recognize revenue for the sale of a development project, which excludes EPC services, or for the sale of a completed system when we enter into the associated sales contract with the customer. For other sales of solar power systems and/or EPC services, we generally recognize revenue over time as our performance creates or enhances an energy generation asset controlled by the customer. Furthermore, the sale of a solar power system combined with EPC services represents a single performance obligation for the development and construction of a single generation asset. For such arrangements, we recognize revenue and gross profit as work is performed using cost based input methods, for which we determine our progress toward contract completion based on the relationship between the actual costs incurred and the total estimated costs (including solar module costs) of the contract.

Such revenue recognition is dependent, in part, on our customers’ commitment to perform their obligations under the contract, which is typically measured through the receipt of cash deposits or other forms of financial security issued by creditworthy financial institutions or parent entities. For sales of solar power systems in which we obtain an interest in the project sold to the customer, we recognize all of the revenue for the consideration received, including the fair value of the noncontrolling interest we obtained, and defer any profit associated with the interest obtained through “Equity in earnings, net of tax.”

Cost based input methods of revenue recognition are considered a faithful depiction of our efforts to satisfy long-term construction contracts and therefore reflect the transfer of goods to a customer under such contracts. Costs incurred that do not contribute to satisfying our performance obligations (i.e., “inefficient costs”) are excluded from our input methods of revenue recognition as the amounts are not reflective of our transferring control of the system to the customer. Costs incurred toward contract completion may include costs associated with solar modules, direct materials, labor, subcontractors, and other indirect costs related to contract performance. We recognize solar module and direct material costs as incurred when such items are installed in a system.

Cost based input methods of revenue recognition require us to make estimates of net contract revenues and costs to complete our projects. In making such estimates, significant judgment is required to evaluate assumptions related to the amount of net contract revenues, including the impact of any performance incentives, liquidated damages, and other payments to customers. Significant judgment is also required to evaluate assumptions related to the costs to complete our projects, including materials, labor, contingencies, and other system costs. If the estimated total costs on any contract, including any inefficient costs, are greater than the net contract revenues, we recognize the entire estimated loss in the period the loss becomes known. The cumulative effect of revisions to estimates related to net contract revenues or costs to complete contracts are recorded in the period in which the revisions to estimates are identified and the amounts can be reasonably estimated. The effect of the changes on future periods are recognized as if the revised estimates had been used since revenue was initially recognized under the contract. Such revisions could occur in any reporting period, and the effects may be material depending on the size of the contracts or the changes in estimates.

As part of our solar power system sales, we conduct performance testing of a system prior to substantial completion to confirm the system meets its operational and capacity expectations noted in the EPC agreement. In addition, we may provide an energy performance test during the first or second year of a system’s operation to demonstrate that the actual energy generation for the applicable period meets or exceeds the modeled energy expectation, after certain adjustments. In certain instances, a bonus payment may be received at the end of the applicable test period if the system performs above a specified level. Conversely, if there is an underperformance event with regards to these tests, we may incur liquidated damages as a percentage of the EPC contract price. Such performance guarantees represent a form of variable consideration and are estimated at contract inception at their most likely amount and updated at the end of each reporting period as additional performance data becomes available and only to the extent that it is probable that a significant reversal of any incremental revenue will not occur.

Revenue Recognition – Operations and Maintenance. We recognize revenue for standard, recurring O&M services over time as customers receive and consume the benefits of such services, which typically include 24/7 system monitoring, certain PPA and other agreement compliance, NERC compliance, large generator interconnection agreement compliance, energy forecasting, performance engineering analysis, regular performance reporting, turn-key maintenance services including spare parts and corrective maintenance repair, warranty management, and environmental services. Other ancillary O&M services, such as equipment replacement, weed abatement, landscaping, or solar module cleaning, are recognized as revenue as the services are provided to the customer. Costs of O&M services are expensed in the period in which they are incurred.

As part of our O&M service offerings, we typically offer an effective availability guarantee, which stipulates that a system will be available to generate a certain percentage of total possible energy during a specific period after adjusting for factors outside our control as the service provider. If system availability exceeds a contractual threshold, we may receive a bonus payment, or if system availability falls below a separate threshold, we may incur liquidated damages for certain lost energy under the PPA. Such bonuses or liquidated damages represent a form of variable consideration and are estimated and recognized over time as customers receive and consume the benefits of the O&M services.

Revenue Recognition – Energy Generation. We sell energy generated by PV solar power systems under PPAs or on an open contract basis. For energy sold under PPAs, we recognize revenue each period based on the volume of energy delivered to the customer (i.e., the PPA off-taker) and the price stated in the PPA. For energy sold on an open contract basis, we recognize revenue at the point in time the energy is delivered to the grid based on the prevailing spot market prices.

Shipping and Handling Costs. We account for shipping and handling activities related to contracts with customers as costs to fulfill our promise to transfer the associated products. Accordingly, we record amounts billed for shipping and handling costs as a component of net sales, and classify such costs as a component of cost of sales.

Taxes Collected from Customers and Remitted to Governmental Authorities. We exclude from our measurement of transaction prices all taxes assessed by governmental authorities that are both (i) imposed on and concurrent with a specific revenue-producing transaction and (ii) collected from customers. Accordingly, such tax amounts are not included as a component of net sales or cost of sales.

Research and Development Expense. We incur research and development costs during the process of researching and developing new products and enhancing our existing products, technologies, and manufacturing processes. Our research and development costs consist primarily of employee compensation, materials, outside services, and depreciation. We expense these costs as incurred until the resulting product has been completed, tested, and made ready for commercial manufacturing.

Production Start-Up. Production start-up expense consists primarily of employee compensation and other costs associated with operating a production line before it is qualified for full production, including the cost of raw materials for solar modules run through the production line during the qualification phase and applicable facility related costs. Costs related to equipment upgrades and implementation of manufacturing process improvements are also included in
production start-up expense as well as costs related to the selection of a new site, related legal and regulatory costs, and costs to maintain our plant replication program to the extent we cannot capitalize these expenditures.

Restructuring and Exit Activities. We record costs associated with significant exit activities when management approves and commits to a plan of termination or over the future service period for certain employee termination benefits. Such exit activities represent programs that materially change our scope of business or the manner in which we conduct our business. Costs associated with these programs may include one-time employee termination benefits, contract termination costs, including costs related to leased facilities to be abandoned or subleased, and asset impairment charges.

Share-Based Compensation. We recognize share-based compensation expense for the estimated grant-date fair value of equity awards issued as compensation to employees over the requisite service period, which is generally four years. For awards with performance conditions, we recognize share-based compensation expense if it is probable that the performance conditions will be achieved. We account for forfeitures of share-based awards as such forfeitures occur. Accordingly, when an associate’s employment is terminated, all previously unvested awards granted to such associate are forfeited, which results in a benefit to share-based compensation expense in the period of such associate’s termination equal to the cumulative expense recorded through the termination date for the unvested awards. We recognize share-based compensation expense for awards with graded vesting schedules on a straight-line basis over the requisite service periods for each separately vesting portion of the award as if each award was in substance multiple awards.

Foreign Currency Translation. The functional currencies of certain of our foreign subsidiaries are their local currencies. Accordingly, we apply period-end exchange rates to translate their assets and liabilities and daily transaction exchange rates to translate their revenues, expenses, gains, and losses into U.S. dollars. We include the associated translation adjustments as a separate component of “Accumulated other comprehensive loss” within stockholders’ equity. The functional currency of our subsidiaries in Canada, Chile, Malaysia, Singapore, and Vietnam is the U.S. dollar; therefore, we do not translate their financial statements. Gains and losses arising from the remeasurement of monetary assets and liabilities denominated in currencies other than a subsidiary’s functional currency are included in “Foreign currency income (loss), net” in the period in which they occur.

Income Taxes. We use the asset and liability method to account for income taxes whereby we calculate deferred tax assets or liabilities using the enacted tax rates and tax law applicable to when any temporary differences are expected to reverse. We establish valuation allowances, when necessary, to reduce deferred tax assets to the extent it is more likely than not that such deferred tax assets will not be realized. We do not provide deferred taxes related to the U.S. GAAP basis in excess of the outside tax basis in the investment in our foreign subsidiaries to the extent such amounts relate to indefinitely reinvested earnings and profits of such foreign subsidiaries.

Income tax expense includes (i) deferred tax expense, which generally represents the net change in deferred tax assets or liabilities during the year plus any change in valuation allowances, and (ii) current tax expense, which represents the amount of tax currently payable to or receivable from taxing authorities. We only recognize tax benefits related to uncertain tax positions that are more likely than not of being sustained upon examination. For those positions that satisfy such recognition criteria, the amount of tax benefit that we recognize is the largest amount of tax benefit that is more likely than not of being sustained on ultimate settlement of the uncertain tax position.

Per Share Data. Basic net income or loss per share is computed by dividing net income or loss by the weighted-average number of common shares outstanding for the period. Diluted net income per share is computed giving effect to all potentially dilutive common shares, including restricted and performance stock units and stock purchase plan shares, unless there is a net loss for the period. In computing diluted net income per share, we utilize the treasury stock method.

Accumulated Other Comprehensive Income or Loss. Our accumulated other comprehensive income or loss includes foreign currency translation adjustments, unrealized gains and losses on available-for-sale debt securities, and unrealized gains and losses on derivative instruments designated and qualifying as cash flow hedges. We record these components of accumulated other comprehensive income or loss net of tax and release such tax effects when the underlying components affect earnings.
v3.19.3.a.u2
Note 3. Recent Accounting Pronouncements (Notes)
12 Months Ended
Dec. 31, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]  
Recent Accounting Pronouncements
3. Recent Accounting Pronouncements

In August 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-12, Derivatives and Hedging (Topic 815) – Targeted Improvements to Accounting for Hedging Activities, to simplify certain aspects of hedge accounting for both non-financial and financial risks and better align the recognition and measurement of hedge results with an entity’s risk management activities. ASU 2017-12 also amends certain presentation and disclosure requirements for hedging activities and changes how an entity assesses hedge effectiveness. The adoption of ASU 2017-12 in the first quarter of 2019 did not have a significant impact on our consolidated financial statements and associated disclosures.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326), to provide financial statement users with more useful information about expected credit losses. ASU 2016-13 also changes how entities measure credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for fiscal years and interim periods within those years beginning after December 15, 2019, and early adoption is permitted for periods beginning after December 15, 2018. We expect to adopt ASU 2016-13 in the first quarter of 2020 and are currently evaluating its impact on our consolidated financial statements and associated disclosures.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), to increase transparency and comparability among organizations by recognizing a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months and disclosing key information about leasing transactions. Leases are classified as either operating or financing, with such classification affecting the pattern of expense recognition in the income statement. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842) – Targeted Improvements, which provided an optional transition method to apply the new lease requirements through a cumulative-effect adjustment in the period of adoption.

We adopted ASU 2016-02 in the first quarter of 2019 using the optional transition method and elected certain practical expedients permitted under the transition guidance, which, among other things, allowed us to not reassess prior conclusions related to contracts containing leases or lease classification. The adoption primarily affected our condensed consolidated balance sheet through the recognition of $140.7 million of right-of-use assets and $119.9 million of lease liabilities as of January 1, 2019 and the derecognition of historical prepaid and deferred rent balances. The adoption did not have a significant impact on our results of operations or cash flows. See Note 10. "Leases" to our consolidated financial statements for further discussion of the effects of the adoption of ASU 2016-02 and the associated disclosures.
v3.19.3.a.u2
Note 4. Restructuring and Asset Impairments (Notes)
12 Months Ended
Dec. 31, 2019
Restructuring and Related Activities [Abstract]  
Restructuring and Asset Impairments
4. Restructuring and Asset Impairments

Cadmium Telluride Module Manufacturing and Corporate Restructuring

In November 2016, our board of directors approved a set of initiatives intended to accelerate our transition to Series 6 module manufacturing and restructure our operations to reduce costs and better align the organization with our long-term strategic plans. As a result of these initiatives, we incurred net charges of $41.8 million during the year ended December 31, 2017, which included (i) $27.6 million of charges, primarily related to net losses on the disposition of previously impaired Series 4 and Series 5 manufacturing equipment, (ii) $7.6 million of severance benefits to terminated employees, and (iii) $6.7 million of net miscellaneous charges, primarily related to contract terminations, the write-off of operating supplies, and other Series 4 manufacturing exit costs.

Substantially all amounts associated with these restructuring and asset impairment charges related to our modules segment and were classified as “Restructuring and asset impairments” on the consolidated statements of operations, and substantially all of the associated liabilities were paid or settled as of December 31, 2017.

Other Restructuring

During the year ended December 31, 2012, we recognized a liability for the expected repayment of certain customs tax benefits as part of a prior restructuring activity. In December 2017, we reversed this liability as a result of meeting certain investment certificate criteria associated with the commencement of operations at our previously announced manufacturing plant in Vietnam and recorded a $4.7 million benefit to “Restructuring and asset impairments.”
v3.19.3.a.u2
Note 5. Goodwill and Intangible Assets (Notes)
12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
5. Goodwill and Intangible Assets

Goodwill

The changes in the carrying amount of goodwill, by reporting unit, for the years ended December 31, 2019 and 2018 were as follows (in thousands):
 
 
Balance at December 31, 2018
 
Acquisitions (Impairments)
 
Balance at December 31, 2019
Modules
 
$
407,827

 
$

 
$
407,827

Accumulated impairment losses
 
(393,365
)
 

 
(393,365
)
Total
 
$
14,462

 
$

 
$
14,462


 
 
Balance at December 31, 2017
 
Acquisitions (Impairments)
 
Balance at December 31, 2018
Modules
 
$
407,827

 
$

 
$
407,827

Accumulated impairment losses
 
(393,365
)
 

 
(393,365
)
Total
 
$
14,462

 
$

 
$
14,462



We performed our annual impairment analysis in the fourth quarter of 2019, 2018, and 2017. ASC 350-20 allows companies to perform a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying value to determine whether it is necessary to perform a quantitative goodwill impairment test. Such qualitative assessment considers various factors, including macroeconomic conditions, industry and market considerations, cost factors, the overall financial performance of a reporting unit, and any other relevant events affecting our company or a reporting unit.

We performed a qualitative assessment for our modules reporting unit in each respective period and concluded that it was not more likely than not that the fair value of the reporting unit was less than its carrying amount. Accordingly, a quantitative goodwill impairment test for this reporting unit was not required in either period.

Intangible Assets, Net

The following tables summarize our intangible assets at December 31, 2019 and 2018 (in thousands):
 
 
December 31, 2019
 
 
Gross Amount
 
Accumulated Amortization
 
Net Amount
Developed technology
 
$
97,964

 
$
(42,344
)
 
$
55,620

Power purchase agreements
 
6,486

 
(972
)
 
5,514

Patents
 
7,780

 
(4,371
)
 
3,409

Total
 
$
112,230

 
$
(47,687
)
 
$
64,543


 
 
December 31, 2018
 
 
Gross Amount
 
Accumulated Amortization
 
Net Amount
Developed technology
 
$
97,714

 
$
(33,093
)
 
$
64,621

Power purchase agreements
 
6,486

 
(648
)
 
5,838

Patents
 
7,408

 
(3,705
)
 
3,703

Total
 
$
111,608

 
$
(37,446
)
 
$
74,162



Amortization expense for our intangible assets was $10.2 million, $9.9 million, and $8.3 million for the years ended December 31, 2019, 2018, and 2017, respectively.

Estimated future amortization expense for our definite-lived intangible assets was as follows at December 31, 2019 (in thousands):
 
 
Amortization Expense
2020
 
$
10,498

2021
 
10,496

2022
 
10,471

2023
 
10,187

2024
 
10,057

Thereafter
 
12,834

Total amortization expense
 
$
64,543


v3.19.3.a.u2
Note 6. Cash, Cash Equivalents, and Marketable Securities (Notes)
12 Months Ended
Dec. 31, 2019
Cash, Cash Equivalents, and Short-term Investments [Abstract]  
Cash, Cash Equivalents, and Marketable Securities
6. Cash, Cash Equivalents, and Marketable Securities

Cash, cash equivalents, and marketable securities consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Cash and cash equivalents:
 
 
 
 
Cash
 
$
1,345,419

 
$
1,202,774

Money market funds
 
7,322

 
200,788

Total cash and cash equivalents
 
1,352,741

 
1,403,562

Marketable securities:
 
 
 
 
Foreign debt
 
387,820

 
318,646

Foreign government obligations
 
22,011

 
98,621

U.S. debt
 
66,134

 
44,468

Time deposits
 
335,541

 
681,969

Total marketable securities
 
811,506

 
1,143,704

Total cash, cash equivalents, and marketable securities
 
$
2,164,247

 
$
2,547,266



The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within our consolidated balance sheets as of December 31, 2019 and 2018 to the total of such amounts as presented in the consolidated statements of cash flows (in thousands):
 
 
Balance Sheet Line Item
 
2019
 
2018
Cash and cash equivalents
 
Cash and cash equivalents
 
$
1,352,741

 
$
1,403,562

Restricted cash  current (1)
 
Prepaid expenses and other current assets
 
13,697

 
19,671

Restricted cash  noncurrent (1)
 
Restricted cash and investments
 
80,072

 
139,390

Total cash, cash equivalents, and restricted cash
 
 
 
$
1,446,510

 
$
1,562,623

——————————
(1)
See Note 7. “Restricted Cash and Investments” to our consolidated financial statements for discussion of our “Restricted cash” arrangements.

During the year ended December 31, 2019, we sold marketable securities for proceeds of $52.0 million and realized no gain or loss on such sales. During the years ended December 31, 2018 and 2017, we sold marketable securities for proceeds of $10.8 million and $118.3 million, respectively, and realized gains of less than $0.1 million on such sales in each respective period. See Note 11. “Fair Value Measurements” to our consolidated financial statements for information about the fair value of our marketable securities.

The following tables summarize the unrealized gains and losses related to our available-for-sale marketable securities, by major security type, as of December 31, 2019 and 2018 (in thousands):
 
 
As of December 31, 2019
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign debt
 
$
387,775

 
$
551

 
$
506

 
$
387,820

Foreign government obligations
 
21,991

 
20

 

 
22,011

U.S. debt
 
65,970

 
176

 
12

 
66,134

Time deposits
 
335,541

 

 

 
335,541

Total
 
$
811,277

 
$
747

 
$
518

 
$
811,506

 
 
As of December 31, 2018
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign debt
 
$
320,056

 
$
468

 
$
1,878

 
$
318,646

Foreign government obligations
 
99,189

 

 
568

 
98,621

U.S. debt
 
44,625

 
53

 
210

 
44,468

Time deposits
 
681,969

 

 

 
681,969

Total
 
$
1,145,839

 
$
521

 
$
2,656

 
$
1,143,704



As of December 31, 2019, we had no investments in a loss position for a period of time greater than 12 months. As of December 31, 2018, we identified 15 investments totaling $207.2 million that had been in a loss position for a period of time greater than 12 months with unrealized losses of $1.8 million. The unrealized losses were primarily due to increases in interest rates relative to rates at the time of purchase. Based on the underlying credit quality of the investments, we generally hold such securities until we recover our cost basis. Therefore, we did not consider these securities to be other-than-temporarily impaired.

The following tables show unrealized losses and fair values for those marketable securities that were in an unrealized loss position as of December 31, 2019 and 2018, aggregated by major security type and the length of time the marketable securities have been in a continuous loss position (in thousands):
 
 
As of December 31, 2019
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign debt
 
$
178,174

 
$
506

 
$

 
$

 
$
178,174

 
$
506

U.S. debt
 
30,566

 
12

 

 

 
30,566

 
12

Total
 
$
208,740

 
$
518

 
$

 
$

 
$
208,740

 
$
518

 
 
As of December 31, 2018
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign debt
 
$
150,842

 
$
802

 
$
94,446

 
$
1,076

 
$
245,288

 
$
1,878

Foreign government obligations
 

 

 
98,621

 
568

 
98,621

 
568

U.S. debt
 
$
15,356

 
$
32

 
$
14,085

 
$
178

 
$
29,441

 
$
210

Total
 
$
166,198

 
$
834

 
$
207,152

 
$
1,822

 
$
373,350

 
$
2,656



The contractual maturities of our marketable securities as of December 31, 2019 were as follows (in thousands):
 
 
Fair
Value
One year or less
 
$
488,118

One year to two years
 
164,410

Two years to three years
 
158,978

Total
 
$
811,506


v3.19.3.a.u2
Note 7. Restricted Cash and Investments (Notes)
12 Months Ended
Dec. 31, 2019
Restricted Cash and Investments [Abstract]  
Restricted Cash and Investments
7. Restricted Cash and Investments

Restricted cash and investments consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Restricted cash
 
$
80,072

 
$
139,390

Restricted investments
 
223,785

 
179,000

Total restricted cash and investments (1)
 
$
303,857

 
$
318,390


——————————
(1)
There was an additional $13.7 million and $19.7 million of restricted cash included within “Prepaid expenses and other current assets” at December 31, 2019 and 2018, respectively.

At December 31, 2019 and 2018, our restricted cash consisted of deposits held by various banks to secure certain of our letters of credit and other deposits designated for the construction or operation of systems projects as well as the payment of amounts related to project specific debt financings. At December 31, 2018, our restricted cash also included certain deposits held in custodial accounts to fund the estimated future costs of our solar module collection and recycling obligations.

At December 31, 2019 and 2018, our restricted investments consisted of long-term marketable securities that were also held in custodial accounts to fund the estimated future costs of collecting and recycling modules covered under our solar module collection and recycling program. As necessary, we fund any incremental amounts for our estimated collection and recycling obligations on an annual basis based on the estimated costs of collecting and recycling covered modules, estimated rates of return on our restricted investments, and an estimated solar module life of 25 years less amounts already funded in prior years. To ensure that amounts previously funded will be available in the future regardless of potential adverse changes in our financial condition (even in the case of our own insolvency), we have established a trust under which estimated funds are put into custodial accounts with an established and reputable bank, for which First Solar, Inc.; First Solar Malaysia Sdn. Bhd.; and First Solar Manufacturing GmbH are grantors. Trust funds may be disbursed for qualified module collection and recycling costs (including capital and facility related recycling costs), payments to customers for assuming collection and recycling obligations, and reimbursements of any overfunded amounts. Investments in the trust must meet certain investment quality criteria comparable to highly rated government or agency bonds.

During the year ended December 31, 2019, we sold certain restricted investments for proceeds of $281.6 million and realized gains of $40.6 million on such sales as part of efforts to align the currencies of the investments with those of the corresponding collection and recycling liabilities and disburse $22.2 million of overfunded amounts. During the year ended December 31, 2018, we sold certain restricted investments for proceeds of $231.1 million and realized gains of $55.4 million on such sales as part of an effort to align the currencies of the investments with those corresponding collection and recycling liabilities and disburse $143.1 million of overfunded amounts. See Note 11. “Fair Value Measurements” to our consolidated financial statements for information about the fair value of our restricted investments.

The following tables summarize the unrealized gains and losses related to our restricted investments, by major security type, as of December 31, 2019 and 2018 (in thousands):
 
 
As of December 31, 2019
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign government obligations
 
$
129,499

 
$

 
$
3,433

 
$
126,066

U.S. government obligations
 
99,700

 

 
1,981

 
97,719

Total
 
$
229,199

 
$

 
$
5,414

 
$
223,785

 
 
As of December 31, 2018
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign government obligations
 
$
73,798

 
$
14,234

 
$
235

 
$
87,797

U.S. government obligations
 
97,223

 
416

 
6,436

 
91,203

Total
 
$
171,021

 
$
14,650

 
$
6,671

 
$
179,000



As of December 31, 2019, we had no restricted investments in a loss position for a period of time greater than 12 months. As of December 31, 2018, we identified six restricted investments totaling $87.4 million that had been in a loss position for a period of time greater than 12 months with unrealized losses of $6.4 million. The unrealized losses were primarily due to increases in interest rates relative to rates at the time of purchase. Based on the underlying credit quality of the investments, we generally hold such securities until we recover our cost basis. Therefore, we did not consider these securities to be other-than-temporarily impaired.

The following tables show unrealized losses and fair values for those restricted investments that were in an unrealized loss position as of December 31, 2019 and 2018, aggregated by major security type and the length of time the restricted investments have been in a continuous loss position (in thousands):
 
 
As of December 31, 2019
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign government obligations
 
$
126,066

 
$
3,433

 
$

 
$

 
$
126,066

 
$
3,433

U.S. government obligations
 
97,719

 
1,981

 

 

 
97,719

 
1,981

Total
 
$
223,785

 
$
5,414

 
$

 
$

 
$
223,785

 
$
5,414

 
 
As of December 31, 2018
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign government obligations
 
$
41,335

 
$
235

 
$

 
$

 
$
41,335

 
$
235

U.S. government obligations
 

 

 
87,401

 
6,436

 
87,401

 
6,436

Total
 
$
41,335

 
$
235

 
$
87,401

 
$
6,436

 
$
128,736

 
$
6,671



As of December 31, 2019, the contractual maturities of our restricted investments were between 10 years and 21 years.
v3.19.3.a.u2
Note 8. Consolidated Balance Sheet Details (Notes)
12 Months Ended
Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]  
Consolidated Balance Sheet Details
8. Consolidated Balance Sheet Details

Accounts receivable trade, net

Accounts receivable trade, net consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Accounts receivable trade, gross
 
$
476,425

 
$
129,644

Allowance for doubtful accounts
 
(1,386
)
 
(1,362
)
Accounts receivable trade, net
 
$
475,039

 
$
128,282


At December 31, 2019 and 2018, $44.9 million and $8.5 million, respectively, of our accounts receivable trade, net were secured by letters of credit, bank guarantees, surety bonds, or other forms of financial security issued by creditworthy financial institutions.

Accounts receivable, unbilled and retainage

Accounts receivable, unbilled and retainage consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Accounts receivable, unbilled
 
$
162,057

 
$
441,666

Retainage
 
21,416

 
16,500

Accounts receivable, unbilled and retainage
 
$
183,473

 
$
458,166



Inventories

Inventories consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Raw materials
 
$
248,756

 
$
224,329

Work in process
 
59,924

 
41,294

Finished goods
 
295,479

 
252,372

Inventories
 
$
604,159

 
$
517,995

Inventories – current
 
$
443,513

 
$
387,912

Inventories – noncurrent
 
$
160,646

 
$
130,083



Prepaid expenses and other current assets

Prepaid expenses and other current assets consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Prepaid expenses
 
$
137,927

 
$
90,981

Prepaid income taxes
 
47,811

 
59,319

Indirect tax receivables
 
29,908

 
26,327

Restricted cash
 
13,697

 
19,671

Notes receivable (1)
 
23,873

 
5,196

Derivative instruments (2)
 
1,199

 
2,364

Other current assets
 
22,040

 
39,203

Prepaid expenses and other current assets
 
$
276,455

 
$
243,061


——————————
(1)
In November 2014 and February 2016, we entered into a term loan agreement and a convertible loan agreement, respectively, with Clean Energy Collective, LLC (“CEC”). Our term loan bears interest at 16% per annum, and our convertible loan bears interest at 10% per annum. In November 2018, we amended the terms of the loan agreements to (i) extend their maturity to June 2020, (ii) waive the conversion features on our convertible loan, and (iii) increase the frequency of interest payments, subject to certain conditions. In January 2019, CEC finalized certain restructuring arrangements, which resulted in a dilution of our ownership interest in CEC and the loss of our representation on the company’s board of managers. As a result of such restructuring, CEC no longer qualified to be accounted for under the equity method. As of December 31, 2019, the aggregate balance outstanding on the loans was $23.9 million and was presented within “Prepaid expenses and other current assets.” As of December 31, 2018, the aggregate balance outstanding on the loans was $22.8 million and was presented within “Notes receivable, affiliate.”

(2)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.

Property, plant and equipment, net

Property, plant and equipment, net consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Land
 
$
14,241

 
$
14,382

Buildings and improvements
 
664,266

 
567,605

Machinery and equipment
 
2,436,997

 
1,826,434

Office equipment and furniture
 
159,848

 
178,011

Leasehold improvements
 
48,772

 
49,055

Construction in progress
 
243,107

 
405,581

Property, plant and equipment, gross
 
3,567,231

 
3,041,068

Accumulated depreciation
 
(1,386,082
)
 
(1,284,857
)
Property, plant and equipment, net
 
$
2,181,149

 
$
1,756,211



We periodically assess the estimated useful lives of our property, plant and equipment whenever applicable facts and circumstances indicate a change in the estimated useful life of an asset may have occurred. During the year ended December 31, 2019, we revised the estimated useful lives of certain core Series 6 manufacturing equipment from 10 years to 15 years. Such revision was primarily due to the validation of certain aspects of our Series 6 module technology, including the nature of the manufacturing process, the operating and maintenance cost profile of the manufacturing equipment, and the technology’s compatibility with our long-term module technology roadmap. We expect the revised useful lives to reduce depreciation by approximately $15.0 million per year. Depreciation of property, plant and equipment was $176.4 million, $109.1 million, and $91.4 million for the years ended December 31, 2019, 2018, and 2017, respectively.

PV solar power systems, net

PV solar power systems, net consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
PV solar power systems, gross
 
$
530,004

 
$
343,061

Accumulated depreciation
 
(53,027
)
 
(34,421
)
PV solar power systems, net
 
$
476,977

 
$
308,640



Depreciation of PV solar power systems was $18.7 million, $15.3 million, and $19.8 million for the years ended December 31, 2019, 2018, and 2017, respectively.

Project assets

Project assets consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Project assets – development costs, including project acquisition and land costs
 
$
254,466

 
$
298,070

Project assets – construction costs
 
82,654

 
200,359

Project assets
 
337,120

 
498,429

Project assets  current
 
$
3,524

 
$
37,930

Project assets  noncurrent
 
$
333,596

 
$
460,499



Capitalized interest

The components of interest expense and capitalized interest were as follows during the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
Interest cost incurred
 
$
(29,656
)
 
$
(31,752
)
 
$
(27,457
)
Interest cost capitalized – project assets
 
2,590

 
5,831

 
1,692

Interest expense, net
 
$
(27,066
)
 
$
(25,921
)
 
$
(25,765
)


Other assets

Other assets consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Operating lease assets (1)
 
$
145,711

 
$

Indirect tax receivables
 
9,446

 
22,487

Notes receivable (2)
 
8,194

 
8,017

Income taxes receivable
 
4,106

 
4,444

Equity method investments (3)
 
2,812

 
3,186

Derivative instruments (4)
 
139

 

Deferred rent
 

 
27,249

Other
 
79,446

 
33,495

Other assets 
 
$
249,854

 
$
98,878

——————————
(1)
See Note 10. "Leases" to our consolidated financial statements for discussion of our lease arrangements.

(2)
In April 2009, we entered into a credit facility agreement with a solar power project entity of one of our customers for an available amount of €17.5 million to provide financing for a PV solar power system. The credit facility bears interest at 8.0% per annum, payable quarterly, with the full amount due in December 2026. As of December 31, 2019 and 2018, the balance outstanding on the credit facility was €7.0 million ($7.8 million and $8.0 million, respectively).

(3)
In June 2015, 8point3 Energy Partners LP (the “Partnership”), a limited partnership formed by First Solar and SunPower Corporation (collectively the “Sponsors”), completed its initial public offering (the “IPO”). As part of the IPO, the Sponsors contributed interests in various projects to OpCo in exchange for voting and economic interests in the entity, and the Partnership acquired an economic interest in OpCo using proceeds from the IPO.

In June 2018, we completed the sale of our interests in the Partnership and its subsidiaries to CD Clean Energy and Infrastructure V JV, LLC, an equity fund managed by Capital Dynamics, Inc. and certain other co-investors and other parties, and received net proceeds of $240.0 million after the payment of fees, expenses, and other amounts. We accounted for our interests in OpCo, a subsidiary of the Partnership, under the equity method of accounting as we were able to exercise significant influence over the Partnership due to our representation on the board of directors of its general partner and certain of our associates serving as officers of its general partner. During the year ended December 31, 2018, we recognized equity in earnings, net of tax, of $39.7 million from our investment in OpCo, including a gain of $40.3 million, net of tax, for the sale of our interests in the Partnership and its subsidiaries. During the year ended December 31, 2018, we received distributions from OpCo of $12.4 million.

In connection with the IPO, we also entered into an agreement with a subsidiary of the Partnership to lease back one of our originally contributed projects, Maryland Solar, until December 31, 2019. Under the terms of the agreement, we made fixed rent payments to the Partnership’s subsidiary and were entitled to all of the energy generated by the project. Due to certain continuing involvement with the project, we accounted for the leaseback agreement as a financing transaction until the sale of our interests in the Partnership and its subsidiaries in June 2018. Following the sale of such interests, the Maryland Solar project qualified for sale-leaseback accounting, and we recognized net revenue of $32.0 million from the sale of the project.
(4)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.

Accrued expenses

Accrued expenses consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Accrued project costs
 
$
91,971

 
$
147,162

Accrued compensation and benefits
 
65,170

 
41,937

Accrued property, plant and equipment
 
42,834

 
89,905

Accrued inventory
 
39,366

 
53,075

Product warranty liability (1)
 
20,291

 
27,657

Other
 
91,628

 
81,844

Accrued expenses
 
$
351,260

 
$
441,580

——————————
(1)
See Note 14. “Commitments and Contingencies” to our consolidated financial statements for discussion of our “Product warranty liability.”

Other current liabilities

Other current liabilities consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Operating lease liabilities (1)
 
$
11,102

 
$

Derivative instruments (2)
 
2,582

 
7,294

Contingent consideration (3)
 
2,395

 
665

Other
 
12,051

 
6,421

Other current liabilities
 
$
28,130

 
$
14,380

——————————
(1)
See Note 10. "Leases" to our consolidated financial statements for discussion of our lease arrangements.

(2)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.

(3)
See Note 14. “Commitments and Contingencies” to our consolidated financial statements for discussion of our “Contingent consideration” arrangements.

Other liabilities

Other liabilities consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Operating lease liabilities (1)
 
$
112,515

 
$

Product warranty liability (2)
 
109,506

 
193,035

Other taxes payable
 
90,201

 
83,058

Deferred revenue
 
71,438

 
48,014

Transition tax liability (3)
 
70,047

 
77,016

Derivative instruments (4)
 
7,439

 
9,205

Contingent consideration (2)
 
4,500

 
2,250

Other
 
43,120

 
55,261

Other liabilities
 
$
508,766

 
$
467,839

——————————
(1)
See Note 10. "Leases" to our consolidated financial statements for discussion of our lease arrangements.

(2)
See Note 14. “Commitments and Contingencies” to our consolidated financial statements for discussion of our “Product warranty liability” and “Contingent consideration” arrangements.

(3)
See Note 18. “Income Taxes” to our consolidated financial statements for discussion of the one-time transition tax on accumulated earnings of foreign subsidiaries as a result of the Tax Act.

(4)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.
v3.19.3.a.u2
Note 9. Derivative Financial Instruments (Notes)
12 Months Ended
Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments
9. Derivative Financial Instruments

As a global company, we are exposed in the normal course of business to interest rate and foreign currency risks that could affect our financial position, results of operations, and cash flows. We use derivative instruments to hedge against these risks and only hold such instruments for hedging purposes, not for speculative or trading purposes.

Depending on the terms of the specific derivative instruments and market conditions, some of our derivative instruments may be assets and others liabilities at any particular balance sheet date. We report all of our derivative instruments at fair value and account for changes in the fair value of derivative instruments within “Accumulated other comprehensive loss” if the derivative instruments qualify for hedge accounting. For those derivative instruments that do not qualify for hedge accounting (i.e., “economic hedges”), we record the changes in fair value directly to earnings. See Note 11. “Fair Value Measurements” to our consolidated financial statements for information about the techniques we use to measure the fair value of our derivative instruments.

The following tables present the fair values of derivative instruments included in our consolidated balance sheets as of December 31, 2019 and 2018 (in thousands):
 
 
December 31, 2019
 
 
Prepaid Expenses and Other Current Assets
 
Other Assets
 
Other Current Liabilities
 
Other Liabilities
Derivatives designated as hedging instruments:
 
 
 
 
 
 
 
 
Foreign exchange forward contracts
 
$
226

 
$
139

 
$
369

 
$
230

Total derivatives designated as hedging instruments
 
$
226

 
$
139

 
$
369

 
$
230

 
 
 
 
 
 
 
 
 
Derivatives not designated as hedging instruments:
 
 
 
 

 
 

 
 

Foreign exchange forward contracts
 
$
973

 
$

 
$
1,807

 
$

Interest rate swap contracts
 

 

 
406

 
7,209

Total derivatives not designated as hedging instruments
 
$
973

 
$

 
$
2,213

 
$
7,209

Total derivative instruments
 
$
1,199

 
$
139

 
$
2,582

 
$
7,439

 
 
December 31, 2018
 
 
Prepaid Expenses and Other Current Assets
 
Other Current Liabilities
 
Other Liabilities
Derivatives designated as hedging instruments:
 
 
 
 
 
 
Foreign exchange forward contracts
 
$
158

 
$

 
$

Total derivatives designated as hedging instruments
 
$
158

 
$

 
$

 
 
 
 
 
 
 
Derivatives not designated as hedging instruments:
 
 
 
 

 
 

Foreign exchange forward contracts
 
$
2,206

 
$
7,096

 
$

Interest rate swap contracts
 

 
198

 
9,205

Total derivatives not designated as hedging instruments
 
$
2,206

 
$
7,294

 
$
9,205

Total derivative instruments
 
$
2,364

 
$
7,294

 
$
9,205



The following table presents the pretax amounts related to derivative instruments designated as cash flow hedges affecting accumulated other comprehensive income (loss) and our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
Foreign Exchange Forward Contracts
Balance as of December 31, 2016
 
$
2,556

Amounts recognized in other comprehensive income (loss)
 
(4,468
)
Amounts reclassified to earnings impacting:
 
 
Other income, net
 
189

Balance as of December 31, 2017
 
(1,723
)
Amounts recognized in other comprehensive income (loss)
 
(3,760
)
Amounts reclassified to earnings impacting:
 
 
Net sales
 
1,698

Cost of sales
 
212

Foreign currency income (loss), net
 
5,448

Other income, net
 
(546
)
Balance as of December 31, 2018
 
1,329

Amounts recognized in other comprehensive income (loss)
 
(1,086
)
Amounts reclassified to earnings impacting:
 
 
Net sales
 
(124
)
Cost of sales
 
(1,081
)
Balance as of December 31, 2019
 
$
(962
)


We recorded no amounts related to ineffective portions of our derivative instruments designated as cash flow hedges during the years ended December 31, 2018 and 2017. During the year ended December 31, 2019, we recognized unrealized gains of $0.8 million within “Cost of sales” for amounts excluded from effectiveness testing from our foreign exchange forward contracts designated as cash flow hedges. During the years ended December 31, 2018 and 2017, we recognized unrealized gains of $0.5 million and $0.7 million, respectively, within “Other income, net” for amounts excluded from effectiveness testing for our foreign exchange forward contracts designated as cash flow hedges.

The following table presents gains and losses related to derivative instruments not designated as hedges affecting our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
 
 
Amount of Gain (Loss) Recognized in Income
 
 
Income Statement Line Item
 
2019
 
2018
 
2017
Interest rate swap contracts
 
Cost of sales
 
$
(1,656
)
 
$

 
$

Foreign exchange forward contracts
 
Foreign currency income (loss), net
 
3,716

 
12,113

 
(33,882
)
Interest rate swap contracts
 
Interest expense, net
 
(8,532
)
 
(8,643
)
 
(5,932
)

Interest Rate Risk

We primarily use interest rate swap contracts to mitigate our exposure to interest rate fluctuations associated with certain of our debt instruments. We do not use such swap contracts for speculative or trading purposes. During the years ended December 31, 2019, 2018, and 2017, the majority of our interest rate swap contracts related to project specific debt facilities. Such swap contracts did not qualify for accounting as cash flow hedges in accordance with ASC 815 due to our expectation to sell the associated projects before the maturity of their project specific debt financings and corresponding swap contracts. Accordingly, changes in the fair values of these swap contracts were recorded directly to “Interest expense, net.”

In December 2019, FS Japan Project 31 GK, our indirectly wholly-owned subsidiary and project company, entered into an interest rate swap contract to hedge a portion of the floating rate term loan facility under the project’s Anamizu Credit Facility (as defined in Note 13. “Debt” to our consolidated financial statements). Such swap had an initial notional value of ¥0.9 billion and entitled the project to receive a six-month floating TIBOR plus 0.70% interest rate while requiring the project to pay a fixed rate of 1.1925%. The notional amount of the interest rate swap contract is scheduled to proportionately adjust with the scheduled draws and principal payments on the underlying hedged debt. As of December 31, 2019, the notional value of the interest rate swap contract was ¥0.9 billion ($8.0 million).

In May 2018, FS NSW Project No 1 Finco Pty Ltd, our indirect wholly-owned subsidiary and project financing company, entered into various interest rate swap contracts to hedge the floating rate construction loan facility and a portion of the floating rate term loan facility under the associated project’s Beryl Credit Facility (as defined in Note 13. “Debt” to our consolidated financial statements). The swaps had an initial aggregate notional value of AUD 42.4 million and, depending on the loan facility being hedged, entitled the project to receive one-month or three-month floating Bank Bill Swap Bid (“BBSY”) interest rates while requiring the project to pay fixed rates of 2.0615% or 3.2020%. The notional amounts of the interest rate swap contracts are scheduled to proportionately adjust with the scheduled draws and principal payments on the underlying hedged debt. In June 2019, we completed the sale of our Beryl project, and its interest rate swap contracts and outstanding loan balance were assumed by the customer. As of December 31, 2018, the aggregate notional value of the interest rate swap contracts was AUD 103.4 million ($72.9 million).

In January 2017, FS Japan Project 12 GK, our indirect wholly-owned subsidiary and project company, entered into an interest rate swap contract to hedge a portion of the floating rate senior loan facility under the project’s Ishikawa Credit Agreement (as defined in Note 13. “Debt” to our consolidated financial statements). Such swap had an initial notional value of ¥5.7 billion and entitled the project to receive a six-month floating TIBOR plus 0.75% interest rate while requiring the project to pay a fixed rate of 1.482%. The notional amount of the interest rate swap contract is scheduled to proportionately adjust with the scheduled draws and principal payments on the underlying hedged debt. As of December 31, 2019 and 2018, the notional value of the interest rate swap contract was ¥18.7 billion ($171.7 million) and ¥19.2 billion ($174.1 million), respectively.

Foreign Currency Risk

Cash Flow Exposure

We expect certain of our subsidiaries to have future cash flows that will be denominated in currencies other than the subsidiaries’ functional currencies. Changes in the exchange rates between the functional currencies of our subsidiaries and the other currencies in which they transact will cause fluctuations in the cash flows we expect to receive or pay when these cash flows are realized or settled. Accordingly, we enter into foreign exchange forward contracts to hedge a portion of these forecasted cash flows. As of December 31, 2019 and 2018, these foreign exchange forward contracts hedged our forecasted cash flows for periods up to 22 months and 6 months, respectively. These foreign exchange forward contracts qualify for accounting as cash flow hedges in accordance with ASC 815, and we designated them as such. We report unrealized gains or losses on such contracts in “Accumulated other comprehensive loss” and subsequently reclassify applicable amounts into earnings when the hedged transaction occurs and impacts earnings. We determined that these derivative financial instruments were highly effective as cash flow hedges as of December 31, 2019 and 2018.

As of December 31, 2019 and 2018, the notional values associated with our foreign exchange forward contracts qualifying as cash flow hedges were as follows (notional amounts and U.S. dollar equivalents in millions):
 
 
December 31, 2019
Currency
 
Notional Amount
 
USD Equivalent
U.S. dollar (1)
 
$69.9
 
$69.9
 
 
December 31, 2018
Currency
 
Notional Amount
 
USD Equivalent
Australian dollar
 
AUD 8.8
 
$6.2

——————————
(1)
These derivative instruments represent hedges of outstanding payables denominated in U.S. dollars at certain of our foreign subsidiaries whose functional currencies are other than the U.S. dollar.

In the following 12 months, we expect to reclassify to earnings $0.6 million of net unrealized losses related to forward contracts that are included in “Accumulated other comprehensive loss” at December 31, 2019 as we realize the earnings effects of the related forecasted transactions. The amount we ultimately record to earnings will depend on the actual exchange rates when we realize the related forecasted transactions.

Transaction Exposure and Economic Hedging

Many of our subsidiaries have assets and liabilities (primarily cash, receivables, deferred taxes, payables, accrued expenses, and solar module collection and recycling liabilities) that are denominated in currencies other than the subsidiaries’ functional currencies. Changes in the exchange rates between the functional currencies of our subsidiaries and the other currencies in which these assets and liabilities are denominated will create fluctuations in our reported consolidated statements of operations and cash flows. We may enter into foreign exchange forward contracts or other financial instruments to economically hedge assets and liabilities against the effects of currency exchange rate fluctuations. The gains and losses on such foreign exchange forward contracts will economically offset all or part of the transaction gains and losses that we recognize in earnings on the related foreign currency denominated assets and liabilities.

We also enter into foreign exchange forward contracts to economically hedge balance sheet and other exposures related to transactions between certain of our subsidiaries and transactions with third parties. Such contracts are considered economic hedges and do not qualify for hedge accounting. Accordingly, we recognize gains or losses from the fluctuations in foreign exchange rates and the fair value of these derivative contracts in “Foreign currency income (loss), net” on our consolidated statements of operations.

As of December 31, 2019 and 2018, the notional values of our foreign exchange forward contracts that do not qualify for hedge accounting were as follows (notional amounts and U.S. dollar equivalents in millions):
 
 
December 31, 2019
Transaction
 
Currency
 
Notional Amount
 
USD Equivalent
Purchase
 
Australian dollar
 
AUD 14.9
 
$10.4
Sell
 
Australian dollar
 
AUD 11.1
 
$7.8
Purchase
 
Brazilian real
 
BRL 13.2
 
$3.3
Sell
 
Brazilian real
 
BRL 4.3
 
$1.1
Purchase
 
Canadian dollar
 
CAD 4.5
 
$3.4
Sell
 
Canadian dollar
 
CAD 1.6
 
$1.2
Purchase
 
Chilean peso
 
CLP 1,493.1
 
$2.0
Sell
 
Chilean peso
 
CLP 3,866.1
 
$5.1
Purchase
 
Euro
 
€86.1
 
$96.5
Sell
 
Euro
 
€116.3
 
$130.3
Sell
 
Indian rupee
 
INR 1,283.8
 
$18.0
Purchase
 
Japanese yen
 
¥3,625.5
 
$33.3
Sell
 
Japanese yen
 
¥23,089.5
 
$212.2
Purchase
 
Malaysian ringgit
 
MYR 88.6
 
$21.6
Sell
 
Malaysian ringgit
 
MYR 41.3
 
$10.1
Sell
 
Mexican peso
 
MXN 34.6
 
$1.8
Purchase
 
Singapore dollar
 
SGD 2.9
 
$2.2
 
 
December 31, 2018
Transaction
 
Currency
 
Notional Amount
 
USD Equivalent
Purchase
 
Australian dollar
 
AUD 2.1
 
$1.5
Sell
 
Australian dollar
 
AUD 52.9
 
$37.3
Purchase
 
Brazilian real
 
BRL 8.5
 
$2.2
Sell
 
Canadian dollar
 
CAD 2.9
 
$2.1
Sell
 
Chilean peso
 
CLP 3,506.6
 
$5.1
Purchase
 
Euro
 
€115.2
 
$131.9
Sell
 
Euro
 
€191.8
 
$219.7
Sell
 
Indian rupee
 
INR 789.2
 
$11.3
Purchase
 
Japanese yen
 
¥931.6
 
$8.4
Sell
 
Japanese yen
 
¥23,858.8
 
$216.2
Purchase
 
Malaysian ringgit
 
MYR 34.3
 
$8.3
Sell
 
Malaysian ringgit
 
MYR 53.8
 
$12.9
Sell
 
Mexican peso
 
MXN 37.3
 
$1.9
Purchase
 
Singapore dollar
 
SGD 3.8
 
$2.8

v3.19.3.a.u2
Note 10. Leases (Notes)
12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Leases
10. Leases

Our lease arrangements include land associated with our systems projects, our corporate and administrative offices, land for our international manufacturing facilities, and certain of our manufacturing equipment. Such leases primarily relate to assets located in the United States, Japan, Malaysia, and Vietnam.

The following table presents certain quantitative information related to our lease arrangements for the year ended and as of December 31, 2019 (in thousands):
 
 
2019
Operating lease cost
 
$
21,833

Variable lease cost
 
3,518

Short-term lease cost
 
7,511

Total lease cost
 
$
32,862

 
 
 
Payments of amounts included in the measurement of operating lease liabilities
 
$
21,678

Lease assets obtained in exchange for operating lease liabilities
 
$
179,804

 
 
 
 
 
December 31, 2019
Operating lease assets
 
$
145,711

Operating lease liabilities  current
 
11,102

Operating lease liabilities  noncurrent
 
112,515

 
 
 
Weighted-average remaining lease term
 
15 years

Weighted-average discount rate
 
4.3
%


As of December 31, 2019, the future payments associated with our lease liabilities were as follows (in thousands):
 
 
Total Lease Liabilities
2020
 
$
15,153

2021
 
14,868

2022
 
13,903

2023
 
13,491

2024
 
13,217

Thereafter
 
92,281

Total future payments
 
162,913

Less: interest
 
(39,296
)
Total lease liabilities
 
$
123,617



Our lease expense was $18.9 million and $22.1 million for the years ended December 31, 2018, and 2017, respectively.
v3.19.3.a.u2
Note 11. Fair Value Measurements (Notes)
12 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Fair Value Measurements
11. Fair Value Measurements

The following is a description of the valuation techniques that we use to measure the fair value of assets and liabilities that we measure and report at fair value on a recurring basis:

Cash Equivalents. At December 31, 2019 and 2018, our cash equivalents consisted of money market funds. We value our cash equivalents using observable inputs that reflect quoted prices for securities with identical characteristics, and accordingly, we classify the valuation techniques that use these inputs as Level 1.

Marketable Securities and Restricted Investments. At December 31, 2019 and 2018, our marketable securities consisted of foreign debt, foreign government obligations, U.S. debt, and time deposits, and our restricted investments consisted of foreign and U.S. government obligations. We value our marketable securities and restricted investments using observable inputs that reflect quoted prices for securities with identical characteristics or quoted prices for securities with similar characteristics and other observable inputs (such as interest rates that are observable at commonly quoted intervals). Accordingly, we classify the valuation techniques that use these inputs as either Level 1 or Level 2 depending on the inputs used. We also consider the effect of our counterparties’ credit standing in these fair value measurements.

Derivative Assets and Liabilities. At December 31, 2019 and 2018, our derivative assets and liabilities consisted of foreign exchange forward contracts involving major currencies and interest rate swap contracts involving major interest rates. Since our derivative assets and liabilities are not traded on an exchange, we value them using standard industry valuation models. As applicable, these models project future cash flows and discount the amounts to a present value using market-based observable inputs, including interest rate curves, credit risk, foreign exchange rates, and forward and spot prices for currencies. These inputs are observable in active markets over the contract term of the derivative instruments we hold, and accordingly, we classify the valuation techniques as Level 2. In evaluating credit risk, we consider the effect of our counterparties’ and our own credit standing in the fair value measurements of our derivative assets and liabilities, respectively.

At December 31, 2019 and 2018, the fair value measurements of our assets and liabilities measured on a recurring basis were as follows (in thousands):
 
 
 
 
Fair Value Measurements at Reporting
Date Using
 
 
December 31, 2019
 
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Assets:
 
 
 
 
 
 
 
 
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds
 
$
7,322

 
$
7,322

 
$

 
$

Marketable securities:
 
 
 
 
 
 
 
 
Foreign debt
 
387,820

 

 
387,820

 

Foreign government obligations
 
22,011

 

 
22,011

 

U.S. debt
 
66,134

 

 
66,134

 

Time deposits
 
335,541

 
335,541

 

 

Restricted investments
 
223,785

 

 
223,785

 

Derivative assets
 
1,338

 

 
1,338

 

Total assets
 
$
1,043,951

 
$
342,863

 
$
701,088

 
$

Liabilities:
 
 
 
 
 
 
 
 
Derivative liabilities
 
$
10,021

 
$

 
$
10,021

 
$

 
 
 
 
Fair Value Measurements at Reporting
Date Using
 
 
December 31, 2018
 
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Assets:
 
 
 
 
 
 
 
 
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds
 
$
200,788

 
$
200,788

 
$

 
$

Marketable securities:
 
 
 
 
 
 
 
 
Foreign debt
 
318,646

 

 
318,646

 

Foreign government obligations
 
98,621

 

 
98,621

 

U.S. debt
 
44,468

 

 
44,468

 

Time deposits
 
681,969

 
681,969

 

 

Restricted investments
 
179,000

 

 
179,000

 

Derivative assets
 
2,364

 

 
2,364

 

Total assets
 
$
1,525,856

 
$
882,757

 
$
643,099

 
$

Liabilities:
 
 
 
 
 
 
 
 
Derivative liabilities
 
$
16,499

 
$

 
$
16,499

 
$



Fair Value of Financial Instruments

At December 31, 2019 and 2018, the carrying values and fair values of our financial instruments not measured at fair value were as follows (in thousands):
 
 
December 31, 2019
 
December 31, 2018
 
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
Assets:
 
 
 
 
 
 
 
 
Notes receivable – current (1)
 
$
23,873

 
$
24,929

 
$
5,196

 
$
5,196

Notes receivable – noncurrent
 
8,194

 
10,276

 
8,017

 
8,010

Notes receivable, affiliates – noncurrent (1)
 

 

 
22,832

 
24,295

Liabilities:
 
 
 
 
 
 
 
 
Long-term debt, including current maturities (2)
 
$
482,892

 
$
504,213

 
$
479,157

 
$
470,124


——————————
(1)
In January 2019, CEC no longer qualified to be accounted for under the equity method, and our loans to the company were no longer classified as notes receivable from an affiliate. As of December 31, 2019, the aggregate balance outstanding on the loans was presented within “Prepaid expenses and other current assets.” As of December 31, 2018, the aggregate balance outstanding on the loans was presented within “Notes receivable, affiliate.”

(2)
Excludes unamortized discounts and issuance costs.

The carrying values in our consolidated balance sheets of our trade accounts receivable, unbilled accounts receivable and retainage, restricted cash, accounts payable, and accrued expenses approximated their fair values due to their nature and relatively short maturities; therefore, we excluded them from the foregoing table. The fair value measurements for our notes receivable and long-term debt are considered Level 2 measurements under the fair value hierarchy.

Credit Risk

We have certain financial and derivative instruments that subject us to credit risk. These consist primarily of cash, cash equivalents, marketable securities, accounts receivable, restricted cash and investments, notes receivable, and foreign exchange forward contracts. We are exposed to credit losses in the event of nonperformance by the counterparties to our financial and derivative instruments. We place cash, cash equivalents, marketable securities, restricted cash and investments, and foreign exchange forward contracts with various high-quality financial institutions and limit the amount of credit risk from any one counterparty. We continuously evaluate the credit standing of our counterparty financial institutions.

From time to time, our net sales may be concentrated among a limited number of customers. We monitor the financial condition of our customers and perform credit evaluations whenever considered necessary. Depending upon the sales arrangement, we may require some form of payment security from our customers, including advance payments, parent guarantees, letters of credit, bank guarantees, or surety bonds. We also have PPAs that subject us to credit risk in the event our off-take counterparties are unable to fulfill their contractual obligations, which may adversely affect our project assets and certain receivables. Accordingly, we closely monitor the credit standing of existing and potential off-take counterparties to limit such risks.
v3.19.3.a.u2
Note 12. Solar Module Collection and Recycling Liability (Notes)
12 Months Ended
Dec. 31, 2019
Solar Module Collection and Recycling Liability [Abstract]  
Solar Module Collection and Recycling Liability
12. Solar Module Collection and Recycling Liability

We previously established a module collection and recycling program, which has since been discontinued, to collect and recycle modules sold and covered under such program once the modules reach the end of their service lives. For legacy customer sales contracts that were covered under this program, we agreed to pay the costs for the collection and recycling of qualifying solar modules, and the end-users agreed to notify us, disassemble their solar power systems, package the solar modules for shipment, and revert ownership rights over the modules back to us at the end of the modules’ service lives. Accordingly, we recorded any collection and recycling obligations within “Cost of sales” at the time of sale based on the estimated cost to collect and recycle the covered solar modules.

We estimate the cost of our collection and recycling obligations based on the present value of the expected probability-weighted future cost of collecting and recycling the solar modules, which includes estimates for the cost of packaging materials; the cost of freight from the solar module installation sites to a recycling center; material, labor, and capital costs; by-product credits for certain materials recovered during the recycling process; and an estimated third-party profit margin and return on risk for collection and recycling services. We base these estimates on our experience collecting and recycling solar modules and certain assumptions regarding costs at the time the solar modules will be collected and recycled. In the periods between the time of sale and the related settlement of the collection and recycling obligation, we accrete the carrying amount of the associated liability by applying the discount rate used for its initial measurement. We classify accretion as an operating expense within “Selling, general and administrative” expense on our consolidated statements of operations.

We periodically review our estimates of expected future recycling costs and may adjust our liability accordingly. During the year ended December 31, 2018, we completed our annual cost study of obligations under our module collection and recycling program and reduced the associated liability by $34.2 million primarily due to higher by-product credits for glass, lower capital costs resulting from the expanded scale of our recycling facilities, and adjustments to certain valuation assumptions driven by our increased experience with module recycling. During the year ended December 31, 2017, we reduced our module collection and recycling liability by $15.8 million primarily as a result of updates to several valuation assumptions, including a decrease in certain inflation rates.

Our module collection and recycling liability was $137.8 million and $134.4 million as of December 31, 2019 and 2018, respectively. During the year ended December 31, 2019, we recognized accretion expense of $4.9 million associated with this liability. During the year ended December 31, 2018, we recognized net benefits of $25.0 million to cost of sales and $2.9 million to accretion expense as a result of the reduction in our module collection and recycling liability described above. During the year ended December 31, 2017, we recognized a net benefit of $13.2 million to
cost of sales as a result of the reduction in our module collection and recycling liability described above, and net accretion expense of $3.9 million associated with the liability. As of December 31, 2019, a 1% increase in the annualized inflation rate used in our estimated future collection and recycling cost per module would increase the liability by $26.3 million, and a 1% decrease in that rate would decrease the liability by $22.3 million. See Note 7. “Restricted Cash and Investments” to our consolidated financial statements for more information about our arrangements for funding this liability.
v3.19.3.a.u2
Note 13. Debt (Notes)
12 Months Ended
Dec. 31, 2019
Debt Instruments [Abstract]  
Debt
13. Debt

Our long-term debt consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
 
 
Balance (USD)
Loan Agreement
 
Currency
 
2019
 
2018
Revolving Credit Facility
 
USD
 
$

 
$

Luz del Norte Credit Facilities
 
USD
 
188,017

 
188,849

Ishikawa Credit Agreement
 
JPY
 
215,879

 
157,834

Japan Credit Facility
 
JPY
 
1,678

 

Tochigi Credit Facility
 
JPY
 
37,304

 
25,468

Anamizu Credit Facility
 
JPY
 
12,138

 

Anantapur Credit Facility
 
INR
 
15,123

 
16,101

Tungabhadra Credit Facility
 
INR
 
12,753

 
13,934

Beryl Credit Facility
 
AUD
 

 
76,971

Long-term debt principal
 
 
 
482,892

 
479,157

Less: unamortized discounts and issuance costs
 
 
 
(11,195
)
 
(12,366
)
Total long-term debt
 
 
 
471,697

 
466,791

Less: current portion
 
 
 
(17,510
)
 
(5,570
)
Noncurrent portion
 
 
 
$
454,187

 
$
461,221



Revolving Credit Facility

Our amended and restated credit agreement with several financial institutions as lenders and JPMorgan Chase Bank, N.A. as administrative agent provides us with a senior secured credit facility (the “Revolving Credit Facility”) with an aggregate borrowing capacity of $500.0 million, which we may increase to $750.0 million, subject to certain conditions. Borrowings under the credit facility bear interest at (i) London Interbank Offered Rate (“LIBOR”), adjusted for Eurocurrency reserve requirements, plus a margin of 2.00% or (ii) a base rate as defined in the credit agreement plus a margin of 1.00% depending on the type of borrowing requested. These margins are also subject to adjustment depending on our consolidated leverage ratio. We had no borrowings under our Revolving Credit Facility as of December 31, 2019 and 2018 and had issued $39.3 million and $66.0 million, respectively, of letters of credit using availability under the facility. Loans and letters of credit issued under the Revolving Credit Facility are jointly and severally guaranteed by First Solar, Inc.; First Solar Electric, LLC; First Solar Electric (California), Inc.; and First Solar Development, LLC and are secured by interests in substantially all of the guarantors’ tangible and intangible assets other than certain excluded assets.

In addition to paying interest on outstanding principal under the Revolving Credit Facility, we are required to pay a commitment fee at a rate of 0.30% per annum, based on the average daily unused commitments under the facility, which may also be adjusted due to changes in our consolidated leverage ratio. We also pay a letter of credit fee based on the applicable margin for Eurocurrency revolving loans on the face amount of each letter of credit and a fronting fee of 0.125%. Our Revolving Credit Facility matures in July 2022.

Luz del Norte Credit Facilities

In August 2014, Parque Solar Fotovoltaico Luz del Norte SpA (“Luz del Norte”), our indirect wholly-owned subsidiary and project company, entered into credit facilities (the “Luz del Norte Credit Facilities”) with the U.S. International Development Finance Corporation (“DFC”) (previously known as the Overseas Private Investment Corporation) and the International Finance Corporation (“IFC”) to provide limited-recourse senior secured debt financing for the design, development, financing, construction, testing, commissioning, operation, and maintenance of a 141 MWAC PV solar power plant located near Copiapó, Chile.

In March 2017, we amended the terms of the DFC and IFC credit facilities. Such amendments (i) allowed for the capitalization of accrued and unpaid interest through March 15, 2017, along with the capitalization of certain future interest payments as variable rate loans under the credit facilities, (ii) allowed for the conversion of certain fixed rate loans to variable rate loans upon scheduled repayment, (iii) extended the maturity of the DFC and IFC loans until June 2037, and (iv) canceled the remaining borrowing capacity under the DFC and IFC credit facilities with the exception of the capitalization of certain future interest payments. As of December 31, 2019 and 2018, the balance outstanding on the DFC loans was $140.8 million and $141.4 million, respectively. As of December 31, 2019 and 2018, the balance outstanding on the IFC loans was $47.2 million and $47.4 million, respectively. The DFC and IFC loans are secured by liens over all of Luz del Norte’s assets and by a pledge of all of the equity interests in the entity.

Ishikawa Credit Agreement

In December 2016, FS Japan Project 12 GK (“Ishikawa”), our indirect wholly-owned subsidiary and project company, entered into a credit agreement (the “Ishikawa Credit Agreement”) with Mizuho Bank, Ltd. for aggregate borrowings up to ¥27.3 billion ($233.9 million) for the development and construction of a 59 MWAC PV solar power plant located in Ishikawa, Japan. The credit agreement consists of a ¥24.0 billion ($205.6 million) senior loan facility, a ¥2.1 billion ($18.0 million) consumption tax facility, and a ¥1.2 billion ($10.3 million) letter of credit facility. The senior loan facility matures in October 2036, and the consumption tax facility matures in April 2020. The credit agreement is secured by pledges of Ishikawa’s assets, accounts, material project documents, and by the equity interests in the entity. As of December 31, 2019 and 2018, the balance outstanding on the credit agreement was $215.9 million and $157.8 million, respectively.

Japan Credit Facility

In September 2015, First Solar Japan GK, our wholly-owned subsidiary, entered into a construction loan facility with Mizuho Bank, Ltd. for borrowings up to ¥4.0 billion ($33.4 million) for the development and construction of utility-scale PV solar power plants in Japan (the “Japan Credit Facility”). Borrowings under the facility generally mature within 12 months following the completion of construction activities for each financed project. The facility is guaranteed by First Solar, Inc. and secured by pledges of certain projects’ cash accounts and other rights in the projects. As of December 31, 2019 and 2018, the balance outstanding on the facility was $1.7 million and zero, respectively.

Tochigi Credit Facility

In June 2017, First Solar Japan GK, our wholly-owned subsidiary, entered into a term loan facility with Mizuho Bank, Ltd. for borrowings up to ¥7.0 billion ($62.2 million) for the development of utility-scale PV solar power plants in Japan (the “Tochigi Credit Facility”). The term loan facility matures in March 2021. The facility is guaranteed by First Solar, Inc. and secured by pledges of certain of First Solar Japan GK’s accounts. As of December 31, 2019 and 2018, the balance outstanding on the term loan facility was $37.3 million and $25.5 million, respectively.

Anamizu Credit Facility

In December 2019, FS Japan Project 31 GK (“Anamizu”), our indirect wholly-owned subsidiary and project company, entered into a term loan facility (the “Anamizu Credit Facility”) with MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. for aggregate borrowings up to ¥7.7 billion ($70.8 million) for the development and construction of a 17 MWAC PV solar power plant located in Ishikawa, Japan. The credit agreement consists of a ¥6.6 billion ($61.0 million) term loan facility, a ¥0.7 billion ($6.5 million) consumption tax facility, and a ¥0.4 billion ($3.3 million) debt service reserve facility. The term loan facility matures in September 2038, the consumption tax facility matures in November 2022, and the debt service reserve facility matures in March 2038. The credit facility is secured by pledges of Anamizu’s assets, accounts, material project documents, and by the equity interests in the entity. As of December 31, 2019, the balance outstanding on the term loan facility was $12.1 million.

Anantapur Credit Facility

In March 2018, Anantapur Solar Parks Private Limited, our indirect wholly-owned subsidiary and project company, entered into a term loan facility (the “Anantapur Credit Facility”) with J.P. Morgan Securities India Private Limited for borrowings up to INR 1.2 billion ($18.4 million) for costs related to a 20 MWAC PV solar power plant located in Karnataka, India. The term loan facility matures in February 2021 and is secured by a letter of credit issued by JPMorgan Chase Bank, N.A., Singapore, in favor of the lender. Such letter of credit is secured by a cash deposit placed by First Solar FE Holdings Pte. Ltd. As of December 31, 2019 and 2018, the balance outstanding on the term loan facility was $15.1 million and $16.1 million, respectively.

Tungabhadra Credit Facility

In March 2018, Tungabhadra Solar Parks Private Limited, our indirect wholly-owned subsidiary and project company, entered into a term loan facility (the “Tungabhadra Credit Facility”) with J.P. Morgan Securities India Private Limited for borrowings up to INR 1.0 billion ($15.3 million) for costs related to a 20 MWAC PV solar power plant located in Karnataka, India. The term loan facility matures in February 2021 and is secured by a letter of credit issued by JPMorgan Chase Bank, N.A., Singapore, in favor of the lender. Such letter of credit is secured by a cash deposit placed by First Solar FE Holdings Pte. Ltd. As of December 31, 2019 and 2018, the balance outstanding on the term loan facility was $12.8 million and $13.9 million, respectively.

Beryl Credit Facility

In May 2018, FS NSW Project No 1 Finco Pty Ltd, our indirect wholly-owned subsidiary and project financing company, entered into a term loan facility (the “Beryl Credit Facility”) with MUFG Bank, Ltd.; Société Générale, Hong Kong Branch; and Mizuho Bank, Ltd. for aggregate borrowings up to AUD 146.4 million ($108.1 million) for the development and construction of an 87 MWAC PV solar power plant located in New South Wales, Australia. In October 2018, the borrowing capacity on the Beryl Credit Facility was reduced to AUD 136.4 million ($96.1 million). Accordingly, the credit facility consisted of an AUD 125.4 million ($88.4 million) construction loan facility, an AUD 7.0 million ($4.9 million) GST facility to fund certain taxes associated with the construction of the project, and an AUD 4.0 million ($2.8 million) letter of credit facility. In June 2019, we completed the sale of our Beryl project, and the outstanding balance of the Beryl Credit Facility of $88.0 million was assumed by the customer. As of December 31, 2018, the balance outstanding on the credit facility was $77.0 million.

Variable Interest Rate Risk

Certain of our long-term debt agreements bear interest at prime, LIBOR, TIBOR, BBSY, or equivalent variable rates. An increase in these variable rates would increase the cost of borrowing under our Revolving Credit Facility and certain project specific debt financings. Our long-term debt borrowing rates as of December 31, 2019 were as follows:
Loan Agreement
 
December 31, 2019
Revolving Credit Facility
 
3.76%
Luz del Norte Credit Facilities (1)
 
Fixed rate loans at bank rate plus 3.50%
 
Variable rate loans at 91-Day U.S. Treasury Bill Yield or LIBOR plus 3.50%
Ishikawa Credit Agreement
 
Senior loan facility at 6-month TIBOR plus 0.75% (2)
 
Consumption tax facility at 3-month TIBOR plus 0.5%
Japan Credit Facility
 
1-month TIBOR plus 0.55%
Tochigi Credit Facility
 
3-month TIBOR plus 1.0%
Anamizu Credit Facility
 
Term loan facility at 6-month TIBOR plus 0.70% (2)
 
Consumption tax facility at 3-month TIBOR plus 0.5%
 
Debt service reserve facility at 6-month TIBOR plus 1.20%
Anantapur Credit Facility
 
INR overnight indexed swap rate plus 1.5%
Tungabhadra Credit Facility
 
INR overnight indexed swap rate plus 1.5%
——————————
(1)
Outstanding balance comprised of $155.8 million of fixed rate loans and $32.2 million of variable rate loans as of December 31, 2019.

(2)
We have entered into interest rate swap contracts to hedge portions of these variable rates. See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for additional information.

During the years ended December 31, 2019, 2018, and 2017, we paid $18.8 million, $16.6 million, and $10.2 million, respectively, of interest related to our long-term debt arrangements.

Future Principal Payments

At December 31, 2019, the future principal payments on our long-term debt were due as follows (in thousands):
 
 
Total Debt
2020
 
$
17,684

2021
 
79,306

2022
 
19,265

2023
 
18,284

2024
 
19,212

Thereafter
 
329,141

Total long-term debt future principal payments
 
$
482,892


v3.19.3.a.u2
Note 14. Commitments and Contingencies (Notes)
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies
14. Commitments and Contingencies

Commercial Commitments

During the normal course of business, we enter into commercial commitments in the form of letters of credit, bank guarantees, and surety bonds to provide financial and performance assurance to third parties. Our amended and restated Revolving Credit Facility provides us with a sub-limit of $400.0 million to issue letters of credit, subject to certain additional limits depending on the currencies of the letters of credit, at a fee based on the applicable margin for Eurocurrency revolving loans and a fronting fee. As of December 31, 2019, we had $39.3 million in letters of credit issued under our Revolving Credit Facility, leaving $360.7 million of availability for the issuance of additional letters of credit. As of December 31, 2019, we also had $9.8 million of letters of credit under separate agreements that were posted by certain of our foreign subsidiaries and $156.9 million of letters of credit issued under three bilateral facilities, of which $31.8 million was secured with cash, leaving $608.5 million of aggregate available capacity under such agreements and facilities. We also had $89.8 million of surety bonds outstanding, leaving $626.4 million of available bonding capacity under our surety lines as of December 31, 2019. The majority of these letters of credit and surety bonds supported our systems projects.

Purchase Commitments

We purchase raw materials, manufacturing equipment, and various services from a variety of vendors. During the normal course of business, in order to manage manufacturing lead times and help ensure an adequate supply of certain items, we enter into agreements with suppliers that either allow us to procure goods and services when we choose or that establish purchase requirements over the term of the agreement. In certain instances, our purchase agreements allow us to cancel, reschedule, or adjust our purchase requirements based on our business needs prior to firm orders being placed. Consequently, only a portion of our purchase commitments are firm and noncancelable or cancelable with a significant penalty. As of December 31, 2019, our obligations under such arrangements were $1.4 billion, of which $0.4 billion related to capital expenditures. We expect to make $0.9 billion of payments under these purchase obligations in 2020.

Product Warranties

When we recognize revenue for module or system sales, we accrue liabilities for the estimated future costs of meeting our limited warranty obligations for both modules and the balance of the systems. We make and revise these estimates based primarily on the number of solar modules under warranty installed at customer locations, our historical experience with and projections of warranty claims, and our estimated per-module replacement costs. We also monitor our expected future module performance through certain quality and reliability testing and actual performance in certain field installation sites. From time to time, we have taken remediation actions with respect to affected modules beyond our limited warranties and may elect to do so in the future, in which case we would incur additional expenses. Such potential voluntary future remediation actions beyond our limited warranty obligations may be material to our consolidated statements of operations if we commit to any such remediation actions.

Product warranty activities during the years ended December 31, 2019, 2018, and 2017 were as follows (in thousands):
 
 
2019
 
2018
 
2017
Product warranty liability, beginning of period
 
$
220,692

 
$
224,274

 
$
252,408

Accruals for new warranties issued
 
17,327

 
14,132

 
23,313

Settlements
 
(22,540
)
 
(11,851
)
 
(11,329
)
Changes in estimate of product warranty liability
 
(85,682
)
 
(5,863
)
 
(40,118
)
Product warranty liability, end of period
 
$
129,797

 
$
220,692

 
$
224,274

Current portion of warranty liability
 
$
20,291

 
$
27,657

 
$
28,767

Noncurrent portion of warranty liability
 
$
109,506

 
$
193,035

 
$
195,507



We estimate our limited product warranty liability for power output and defects in materials and workmanship under normal use and service conditions based on return rates for each series of module technology. During the year ended December 31, 2019, we revised this estimate downward based on updated information regarding our warranty claims, which reduced our product warranty liability by $80.0 million. This updated information reflected lower-than-expected return rates for our newer series of module technology, the evolving claims profile of each series, and certain changes to our warranty programs. During the year ended December 31, 2017, we reduced our product warranty liability by $31.3 million as a result of a reduction in the estimated replacement cost of our modules under warranty. Such change in estimate was primarily driven by continued reductions in the manufacturing cost per watt of our solar modules.

In general, we expect the return rates for our newer series of module technology to be lower than our older series. We estimate that the return rate for such newer series of module technology will be less than 1%. As of December 31, 2019, a 1% increase in the return rate across all series of module technology would increase our product warranty liability by $89.8 million, and a 1% increase in the return rate for BoS parts would not have a material impact on the associated warranty liability.

Performance Guarantees

As part of our systems business, we conduct performance testing of a system prior to substantial completion to confirm the system meets its operational and capacity expectations noted in the EPC agreement. In addition, we may provide an energy performance test during the first or second year of a system’s operation to demonstrate that the actual energy generation for the applicable period meets or exceeds the modeled energy expectation, after certain adjustments. If there is an underperformance event with regards to these tests, we may incur liquidated damages as specified in the EPC agreement. In certain instances, a bonus payment may be received at the end of the applicable test period if the system performs above a specified level. As of December 31, 2019 and 2018, we accrued $4.6 million and $0.4 million, respectively, for our estimated obligations under such arrangements, which were classified as “Other current liabilities” in our consolidated balance sheets.

As part of our O&M service offerings, we typically offer an effective availability guarantee, which stipulates that a system will be available to generate a certain percentage of total possible energy during a specific period after adjusting for factors outside our control as the service provider, such as weather, curtailment, outages, force majeure, and other conditions that may affect system availability. Effective availability guarantees are only offered as part of our O&M services and terminate at the end of an O&M arrangement. If we fail to meet the contractual threshold for these guarantees, we may incur liquidated damages for certain lost energy. Our O&M agreements typically contain provisions limiting our total potential losses under an agreement, including amounts paid for liquidated damages, to a percentage of O&M fees. Many of our O&M agreements also contain provisions whereby we may receive a bonus payment if system availability exceeds a separate threshold. As of December 31, 2019, we accrued $0.6 million of liquidated damages under our effective availability guarantees, which were classified as “Other current liabilities” in our consolidated balance sheets.

Indemnifications

In certain limited circumstances, we have provided indemnifications to customers, including project tax equity investors, under which we are contractually obligated to compensate such parties for losses they suffer resulting from a breach of a representation, warranty, or covenant or a reduction in tax benefits received, including investment tax credits. Project related tax benefits are, in part, based on guidance provided by the IRS and U.S. Treasury Department, which includes assumptions regarding the fair value of qualifying PV solar power systems. For any sales contracts that have such indemnification provisions, we initially recognize a liability under ASC 460 for the estimated premium that would be required by a guarantor to issue the same indemnity in a standalone arm’s-length transaction with an unrelated party. We typically base these estimates on the cost of insurance policies that cover the underlying risks being indemnified and may purchase such policies to mitigate our exposure to potential indemnification payments. We subsequently measure such liabilities at the greater of the initially estimated premium or the contingent liability required to be
recognized under ASC 450. We recognize any indemnification liabilities as a reduction of revenue in the related transaction.

After an indemnification liability is recorded, we derecognize such amount pursuant to ASC 460-10-35-2 depending on the nature of the indemnity, which derecognition typically occurs upon expiration or settlement of the arrangement, and any contingent aspects of the indemnity are accounted for in accordance with ASC 450. We accrued $0.8 million of current indemnification liabilities as of December 31, 2019. We also accrued $4.2 million and $3.0 million of noncurrent indemnification liabilities, respectively, as of December 31, 2019 and 2018. As of December 31, 2019, the maximum potential amount of future payments under our tax related and other indemnifications was $152.8 million, and we held insurance policies allowing us to recover up to $84.9 million of potential amounts paid under the indemnifications covered by the policies.

Contingent Consideration

We may seek to make additions to our advanced-stage project pipeline by actively developing our early-to-mid-stage project pipeline and by pursuing opportunities to acquire projects at various stages of development. In connection with such project acquisitions, we may agree to pay additional amounts to project sellers upon the achievement of certain milestones, such as obtaining a PPA, obtaining financing, or selling the project to a new owner. We recognize a project acquisition contingent liability when we determine that such a liability is both probable and reasonably estimable, and the carrying amount of the related project asset is correspondingly increased. As of December 31, 2019 and 2018, we accrued $2.4 million and $0.7 million of current liabilities, respectively, and $4.5 million and $2.3 million of long-term liabilities, respectively, for project related contingent obligations. Any future differences between the acquisition-date contingent obligation estimate and the ultimate settlement of the obligation are recognized as an adjustment to the project asset, as contingent payments are considered direct and incremental to the underlying value of the related project.

Legal Proceedings

Class Action

On March 15, 2012, a purported class action lawsuit titled Smilovits v. First Solar, Inc., et al., Case No. 2:12-cv-00555-DGC, was filed in the United States District Court for the District of Arizona against the Company and certain of our current and former directors and officers. The complaint was filed on behalf of persons who purchased or otherwise acquired the Company’s publicly traded securities between April 30, 2008 and February 28, 2012 (the “Class Action”). The complaint generally alleged that the defendants violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 by making false and misleading statements regarding the Company’s financial performance and prospects. The action included claims for damages, including interest, and an award of reasonable costs and attorneys’ fees to the putative class.

On July 23, 2012, the Arizona District Court issued an order appointing as lead plaintiffs in the Class Action the Mineworkers’ Pension Scheme and British Coal Staff Superannuation Scheme (collectively, the “Pension Schemes”). The Pension Schemes filed an amended complaint on August 17, 2012, which contains similar allegations and seeks similar relief as the original complaint. Defendants filed a motion to dismiss on September 14, 2012. On December 17, 2012, the court denied defendants’ motion to dismiss. On October 8, 2013, the Arizona District Court granted the Pension Schemes’ motion for class certification and certified a class comprised of all persons who purchased or otherwise acquired publicly traded securities of the Company between April 30, 2008 and February 28, 2012 and were damaged thereby, excluding defendants and certain related parties. Merits discovery closed on February 27, 2015.

Defendants filed a motion for summary judgment on March 27, 2015. On August 11, 2015, the Arizona District Court granted defendants’ motion in part and denied it in part, and certified an issue for immediate appeal to the Ninth Circuit Court of Appeals (the “Ninth Circuit”). First Solar filed a petition for interlocutory appeal with the Ninth Circuit, and that petition was granted on November 18, 2015. On May 20, 2016, the Pension Schemes moved to vacate the order granting the petition, dismiss the appeal, and stay the merits briefing schedule. On December 13, 2016, the Ninth Circuit
denied the Pension Schemes’ motion. On January 31, 2018, the Ninth Circuit issued an opinion affirming the Arizona District Court’s order denying in part defendants’ motion for summary judgment. On March 16, 2018, First Solar filed a petition for panel rehearing or rehearing en banc with the Ninth Circuit. On May 7, 2018, the Ninth Circuit denied defendants’ petition. On August 6, 2018, defendants filed a petition for writ of certiorari to the U.S. Supreme Court. Meanwhile, in the Arizona District Court, expert discovery was completed on February 5, 2019. On June 24, 2019, the U.S. Supreme Court denied the petition. Following the denial of the petition, the Arizona District Court ordered that the trial begin on January 7, 2020.

On January 5, 2020, First Solar entered into an MOU to settle the Class Action. First Solar agreed to pay a total of $350 million to settle the claims in the Class Action brought on behalf of all persons who purchased or otherwise acquired the Company’s shares between April 30, 2008 and February 28, 2012, in exchange for mutual releases and a dismissal with prejudice of the complaint upon court approval of the settlement. The proposed settlement contains no admission of liability, wrongdoing, or responsibility by any of the parties. As a result of the entry into the MOU, we accrued a loss for the above-referenced settlement in our results of operations for the year ended December 31, 2019. On February 13, 2020, First Solar entered into a stipulation of settlement with certain named plaintiffs on terms and conditions that are consistent with the MOU. On February 14, 2020, the lead plaintiffs filed a motion for preliminary approval of the settlement. The settlement is subject to approval by the Arizona District Court on a schedule to be determined by the court.

Opt-Out Action

On June 23, 2015, a suit titled Maverick Fund, L.D.C. v. First Solar, Inc., et al., Case No. 2:15-cv-01156-ROS, was filed in Arizona District Court by putative stockholders that opted out of the Class Action. The complaint names the Company and certain of our current and former directors and officers as defendants, and alleges that the defendants violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, and violated state law, by making false and misleading statements regarding the Company’s financial performance and prospects. The action includes claims for recessionary and actual damages, interest, punitive damages, and an award of reasonable attorneys’ fees, expert fees, and costs. The Company believes it has meritorious defenses and will vigorously defend this action.

First Solar and the individual defendants filed a motion to dismiss the complaint on July 16, 2018. On November 27, 2018, the Court granted defendants’ motion to dismiss the plaintiffs’ negligent misrepresentation claim under state law, but otherwise denied defendants’ motion. The plaintiffs have argued that the action is unique from the Class Action and have sought additional discovery. Fact discovery is scheduled to be complete by June 5, 2020, and expert discovery is scheduled to be complete by October 23, 2020. As of December 31, 2019, we accrued $13 million of estimated losses for this action, which represents our best estimate of the lower bound of the costs to resolve this case. The ultimate amount of loss may be materially higher.

Derivative Actions

On July 16, 2013, a derivative complaint was filed in the Superior Court of Arizona, Maricopa County, titled Bargar, et al. v. Ahearn, et al., Case No. CV2013-009938, by a putative stockholder against certain current and former directors and officers of the Company (“Bargar”). The complaint generally alleges that the defendants caused or allowed false and misleading statements to be made concerning the Company’s financial performance and prospects. The action includes claims for, among other things, breach of fiduciary duties, insider trading, unjust enrichment, and waste of corporate assets. By court order on October 3, 2013, the Superior Court of Arizona, Maricopa County granted the parties’ stipulation to defer defendants’ response to the complaint pending resolution of the Class Action or expiration of a stay issued in certain consolidated derivative actions in the Arizona District Court. On November 5, 2013, the matter was placed on the court’s inactive calendar. The parties have jointly sought and obtained multiple requests to continue the stay in this action. Most recently, on November 6, 2019, the court entered an order continuing the stay until March 31, 2020. On December 5, 2019, the court granted a motion by one of two named plaintiffs to voluntarily dismiss that plaintiff’s claims; one named plaintiff remains in the case.

The Company believes that the plaintiff in the Bargar derivative action lacks standing to pursue litigation on behalf of First Solar. The Bargar derivative action is still in the initial stages and there has been no discovery. Accordingly, at this time we are not in a position to assess the likelihood of any potential loss or adverse effect on our financial condition or to estimate the range of potential loss, if any.

Other Matters and Claims

We are party to other legal matters and claims in the normal course of our operations. While we believe the ultimate outcome of such other matters and claims will not have a material adverse effect on our financial position, results of operations, or cash flows, the outcome of such matters and claims is not determinable with certainty, and negative outcomes may adversely affect us.
v3.19.3.a.u2
Note 15. Revenue from Contracts with Customers (Notes)
12 Months Ended
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customers [Text Block]
15. Revenue from Contracts with Customers

The following table represents a disaggregation of revenue from contracts with customers for the years ended December 31, 2019, 2018, and 2017 along with the reportable segment for each category (in thousands):
Category
 
Segment
 
2019
 
2018
 
2017
Solar modules
 
Modules
 
$
1,460,116

 
$
502,001

 
$
806,398

Solar power systems
 
Systems
 
1,148,856

 
1,244,175

 
1,927,122

EPC services
 
Systems
 
291,901

 
347,560

 
45,525

O&M services
 
Systems
 
107,705

 
103,186

 
101,024

Energy generation (1)
 
Systems
 
54,539

 
47,122

 
58,019

Module plus
 
Systems
 

 

 
3,236

Net sales
 
 
 
$
3,063,117

 
$
2,244,044

 
$
2,941,324

——————————
(1)
During the year ended December 31, 2017, the majority of energy generated and sold by our PV solar power systems was accounted for under ASC 840 consistent with the classification of the associated PPAs.

We recognize revenue for module sales at a point in time following the transfer of control of the modules to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contracts. Such contracts may contain provisions that require us to make liquidated damage payments to the customer if we fail to ship or deliver modules by scheduled dates. We recognize these liquidated damages as a reduction of revenue in the period we transfer control of the modules to the customer.

For certain sales of solar power systems and/or EPC services, we recognize revenue over time using cost based input methods, in which significant judgment is required to evaluate assumptions including the amount of net contract revenues and the total estimated costs to determine our progress toward contract completion. If the estimated total costs on any contract are greater than the net contract revenues, we recognize the entire estimated loss in the period the loss becomes known. The cumulative effect of revisions to estimates related to net contract revenues or costs to complete contracts are recorded in the period in which the revisions to estimates are identified and the amounts can be reasonably estimated.

Changes in estimates for sales of systems and EPC services occur for a variety of reasons, including but not limited to (i) construction plan accelerations or delays, (ii) module cost forecast changes, (iii) cost related change orders, or (iv) changes in other information used to estimate costs. Changes in estimates may have a material effect on our consolidated statements of operations.
The following table outlines the impact on revenue of net changes in estimated transaction prices and input costs for systems related sales contracts (both increases and decreases) for the years ended December 31, 2019, 2018, and 2017 as well as the number of projects that comprise such changes. For purposes of the table, we only include projects with changes in estimates that have a net impact on revenue of at least $1.0 million during the periods presented with the exception of the sales and use tax matter described below, for which the aggregate change in estimate has been presented. Also included in the table is the net change in estimate as a percentage of the aggregate revenue for such projects.
 
 
2019
 
2018
 
2017
Number of projects (1)
 
3

 
24

 
5

 
 
 
 
 
 
 
(Decrease) increase in revenue from net changes in transaction prices (in thousands) (1)
 
$
(3,642
)
 
$
63,361

 
$
3,579

(Decrease) increase in revenue from net changes in input cost estimates (in thousands)
 
(23,103
)
 
1,548

 
5,047

Net (decrease) increase in revenue from net changes in estimates (in thousands)
 
$
(26,745
)
 
$
64,909

 
$
8,626

 
 
 
 
 
 
 
Net change in estimate as a percentage of aggregate revenue
 
(4.6
)%
 
0.6
%
 
0.6
%

——————————
(1)
During the year ended December 31, 2018, we settled a tax examination with the state of California regarding several matters, including certain sales and use tax payments due under lump sum EPC contracts. Accordingly, we revised our estimates of sales and use taxes due for projects in the state of California, which affected the estimated transaction prices for such contracts, and recorded an increase to revenue of $54.6 million.

The following table reflects the changes in our contract assets, which we classify as “Accounts receivable, unbilled” or “Retainage,” and our contract liabilities, which we classify as “Deferred revenue,” for the year ended December 31, 2019 (in thousands):
 
 
2019
 
2018
 
Change
Accounts receivable, unbilled
 
$
162,057

 
$
441,666

 
 
 
 
Retainage
 
21,416

 
16,500

 
 
 
 
Accounts receivable, unbilled and retainage
 
$
183,473

 
$
458,166

 
$
(274,693
)
 
(60
)%
 
 
 
 
 
 
 
 
 
Deferred revenue (1)
 
$
394,655

 
$
177,769

 
$
216,886

 
122
 %
——————————
(1)
Includes $71.4 million and $48.0 million of long-term deferred revenue classified as “Other liabilities” on our consolidated balance sheets as of December 31, 2019 and 2018, respectively.

For the year ended December 31, 2019, our contract assets decreased by $274.7 million primarily due to billings on the California Flats and Willow Springs projects following the completion of substantially all construction activities and final billings on the Manildra project, which we sold in 2018, partially offset by certain unbilled receivables associated with the sale of the Sun Streams and Sunshine Valley projects and ongoing construction activities at the GA Solar 4 and Phoebe projects. For the year ended December 31, 2019, our contract liabilities increased by $216.9 million primarily as a result of advance payments received for sales of solar modules prior to the step down in the U.S. investment tax credit. During the years ended December 31, 2019 and 2018, we recognized revenue of $117.7 million and $128.7 million, respectively, that was included in the corresponding contract liability balance at the beginning of the periods.

The following table represents our remaining performance obligations as of December 31, 2019 for sales of solar power systems, including uncompleted sold projects and projects under sales contracts subject to conditions precedent. Such table excludes remaining performance obligations for any sales arrangements that had not fully satisfied the criteria to be considered a contract with a customer pursuant to the requirements of ASC 606. We expect to recognize $116.0 million of revenue for such contracts through the later of the substantial completion or the closing dates of the projects.
Project/Location
 
Project Size in MWAC
 
Revenue Category
 
Customer
 
Expected Year Revenue Recognition Will Be Completed
 
Percentage of Revenue Recognized
GA Solar 4, Georgia
 
200
 
Solar power systems
 
Origis Energy USA
 
2020
 
67%
Sun Streams, Arizona
 
150
 
Solar power systems
 
(1)
 
2020
 
94%
Sunshine Valley, Nevada
 
100
 
Solar power systems
 
(1)
 
2020
 
96%
Seabrook, South Carolina
 
72
 
Solar power systems
 
Dominion Energy
 
2020
 
94%
Japan (multiple locations)
 
52
 
Solar power systems
 
(2)
 
2020
 
—%
Windhub A, California
 
20
 
Solar power systems
 
(1)
 
2020
 
96%
Total
 
594
 
 
 
 
 
 
 
 

——————————
(1)
EDP Renewables and ConnectGen

(2)
Contracted but not specified

As of December 31, 2019, we had entered into contracts with customers for the future sale of 11.6 GWDC of solar modules for an aggregate transaction price of $3.9 billion. We expect to recognize such amounts as revenue through 2023 as we transfer control of the modules to the customers. While our contracts with customers typically have certain firm purchase commitments, these contracts may be subject to amendments made by us or requested by our customers. These amendments may increase or decrease the volume of modules to be sold under the contract, change delivery schedules, or otherwise adjust the expected revenue under these contracts. In June 2019 and November 2019, we amended certain contracts with customers to reduce the aggregate volume under the contracts by approximately 0.3 GWDC and 0.9 GWDC respectively, as a result of negotiated amendments to make certain accommodations for the customers. As of December 31, 2019, we had entered into O&M contracts covering approximately 12 GWDC of utility-scale PV solar power systems. We expect to recognize $0.5 billion of revenue during the noncancelable term of these O&M contracts over a weighted-average period of 9.2 years.

v3.19.3.a.u2
Note 16. Stockholders' Equity (Notes)
12 Months Ended
Dec. 31, 2019
Class of Stock Disclosures [Abstract]  
Stockholders' Equity Note Disclosure [Text Block]
16. Stockholders’ Equity

Preferred Stock

As of December 31, 2019 and 2018, we had authorized 30,000,000 shares of undesignated preferred stock, $0.001 par value, none of which was issued and outstanding. Our board of directors is authorized to determine the rights, preferences, and restrictions on any series of preferred stock that we may issue.

Common Stock

As of December 31, 2019 and 2018, we had authorized 500,000,000 shares of common stock, $0.001 par value, of which 105,448,921 and 104,885,261 shares, respectively, were issued and outstanding. Each share of common stock is entitled to a single vote. We have not declared or paid any dividends through December 31, 2019.
v3.19.3.a.u2
Note 17. Share-Based Compensation (Notes)
12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]  
Share-Based Compensation
17. Share-Based Compensation

The following table presents share-based compensation expense recognized in our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
Cost of sales
 
$
7,541

 
$
6,422

 
$
6,809

Selling, general and administrative
 
23,741

 
21,646

 
22,165

Research and development
 
5,917

 
5,714

 
5,740

Production start-up
 
230

 
372

 
407

Total share-based compensation expense
 
$
37,429

 
$
34,154

 
$
35,121



Share-based compensation expense capitalized in inventory, project assets, and PV solar power systems was $1.2 million and $1.8 million as of December 31, 2019 and 2018, respectively. As of December 31, 2019, we had $35.6 million of unrecognized share-based compensation expense related to unvested restricted and performance stock units, which we expect to recognize over a weighted-average period of approximately one year. During the years ended December 31, 2019, 2018, and 2017, we recognized an income tax benefit in our statement of operations of $9.6 million, $9.9 million, and $6.2 million, respectively, related to share-based compensation expense, including any excess tax benefits or deficiencies. We authorize our transfer agent to issue new shares, net of shares withheld for taxes as appropriate, for the vesting of restricted and performance stock units or grants of unrestricted stock.

Share-Based Compensation Plans

During the year ended December 31, 2015, we adopted our 2015 Omnibus Incentive Compensation Plan (“the 2015 Omnibus Plan”), under which directors, officers, employees, and consultants of First Solar (including any of its subsidiaries) are eligible to participate in various forms of share-based compensation. The 2015 Omnibus Plan is administered by the compensation committee (or any other committee designated by our board of directors), which is authorized to, among other things, determine the recipients of grants, the exercise price, and the vesting schedule of any awards made under the 2015 Omnibus Plan. Our board of directors may amend, modify, or terminate the 2015 Omnibus Plan without the approval of our stockholders, except for amendments that would increase the maximum number of shares of our common stock available for awards under the 2015 Omnibus Plan, increase the maximum number of shares of our common stock that may be delivered by incentive stock options, or modify the requirements for participation in the 2015 Omnibus Plan.

The 2015 Omnibus Plan provides for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted shares, restricted stock units, performance units, cash incentive awards, performance compensation awards, and other equity-based and equity-related awards. In addition, the shares underlying any forfeited, expired, terminated, or canceled awards, or shares surrendered as payment for taxes required to be withheld, become available for new award grants. We may not grant awards under the 2015 Omnibus Plan after 2025, which is the tenth anniversary of the 2015 Omnibus Plan’s approval by our stockholders. As of December 31, 2019, we had 2,524,342 shares available for future issuance under the 2015 Omnibus Plan.

Restricted and Performance Stock Units

We issue shares to the holders of restricted stock units on the date the restricted units vest. The majority of shares issued are net of applicable withholding taxes, which we pay on behalf of our associates. As a result, the actual number of shares issued will be less than the number of restricted stock units granted. Prior to vesting, restricted stock units do not have dividend equivalent rights or voting rights, and the shares underlying the restricted stock units are not considered issued and outstanding.

In February 2017, the compensation committee approved a long-term incentive program for key executive officers and associates. The program is intended to incentivize retention of our key executive talent, provide a smooth transition
from our former key senior talent equity performance program, and align the interests of executive management and stockholders. Specifically, the program consists of (i) performance stock units to be earned over an approximately three-year performance period, which ended in December 2019 and (ii) stub-year grants of separate performance stock units to be earned over an approximately two-year performance period, which ended in December 2018. In February 2019, the compensation committee certified the achievement of the maximum vesting conditions applicable for the stub-year grants. Accordingly, each participant received one share of common stock for each vested performance unit, net of any tax withholdings. Vesting of the remaining 2017 grants of performance stock units is contingent upon the relative attainment of target cost per watt and operating expense metrics, to be certified by the compensation committee.

In April 2018, in continuation of our long-term incentive program for key executive officers and associates, the compensation committee approved additional grants of performance stock units to be earned over an approximately three-year performance period ending in December 2020. Vesting of the 2018 grants of performance stock units is contingent upon the relative attainment of target gross margin, operating expense, and contracted revenue metrics.

In July 2019, the compensation committee approved additional grants of performance stock units for key executive officers. Such grants are expected to be earned over a multi-year performance period ending in December 2021. Vesting of the 2019 grants of performance stock units is contingent upon the relative attainment of target cost per watt, module wattage, gross profit, and operating income metrics.

Vesting of performance stock units is also contingent upon the employment of program participants through the applicable vesting dates, with limited exceptions in case of death, disability, a qualifying retirement, or a change-in-control of First Solar. Outstanding performance stock units are included in the computation of diluted net income per share for the years ended December 31, 2019, 2018, and 2017 based on the number of shares that would be issuable if the end of the reporting period were the end of the contingency period.

The following is a summary of our restricted stock unit activity, including performance stock unit activity, for the year ended December 31, 2019:
 
 
 
 
 
Number of Shares
 
Weighted-Average
Grant-Date
Fair Value
Unvested restricted stock units at December 31, 2018
 
2,474,287
 
$
45.63

Restricted stock units granted (1)
 
815,801
 
56.47

Restricted stock units vested
 
(779,320)
 
42.56

Restricted stock units forfeited
 
(99,332)
 
49.36

Unvested restricted stock units at December 31, 2019
 
2,411,436
 
$
50.13


——————————
(1)
Restricted stock units granted include the maximum amount of performance stock units available for issuance under our long-term incentive program for key executive officers and associates. The actual number of shares to be issued will depend on the relative attainment of the performance metrics described above.

We estimate the fair value of our restricted stock unit awards based on our stock price on the grant date. For the years ended December 31, 2018 and 2017, the weighted-average grant-date fair value for restricted stock units granted in such years was $67.44 and $32.81, respectively. The total fair value of restricted stock units vested during 2019, 2018, and 2017 was $40.8 million, $32.2 million, and $14.1 million, respectively.

Unrestricted Stock

During the years ended December 31, 2019, 2018, and 2017, we awarded 26,254; 31,190; and 42,773, respectively, of fully vested, unrestricted shares of our common stock to the independent members of our board of directors. Accordingly, we recognized $1.5 million, $1.6 million, and $1.8 million of share-based compensation expense for these awards during the years ended December 31, 2019, 2018, and 2017, respectively.
Stock Purchase Plan

Our shareholders approved our stock purchase plan for employees in June 2010. The plan allows employees to purchase our common stock through payroll withholdings over a six-month offering period at a discount from the closing share price on the last day of the offering period. In April 2017, we amended our stock purchase plan to reduce the purchase discount from 15% to 4%. Accordingly, the plan is considered noncompensatory and no longer results in the recognition of share-based compensation expense.
v3.19.3.a.u2
Note 18. Income Taxes (Notes)
12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Income Taxes
18. Income Taxes

In December 2017, the United States enacted the Tax Act, which significantly revised U.S. tax law by, among other things, lowering the statutory federal corporate income tax rate from 35% to 21% effective January 1, 2018, eliminating certain deductions, imposing a transition tax on certain accumulated earnings and profits of foreign corporate subsidiaries, introducing new tax regimes, and changing how foreign earnings are subject to U.S. tax. In December 2017, the SEC issued Staff Accounting Bulletin No. 118 to (i) clarify certain aspects of accounting for income taxes under ASC 740 in the reporting period the Tax Act was signed into law when information is not yet available or complete and (ii) provide a measurement period up to one year to complete the accounting for the Tax Act. We completed our accounting for the Tax Act in the fourth quarter of 2018 and recorded certain adjustments to our provisional tax expenses.

As a result of the Tax Act, we remeasured certain deferred tax assets and liabilities based on the tax rate applicable to when the temporary differences are expected to reverse in the future, which is generally 21%, and recorded a provisional tax expense of $6.6 million for the year ended December 31, 2017. During the year ended December 31, 2018, we reduced our provisional tax expense for the remeasurement of deferred tax assets and liabilities by $2.3 million. The transition tax of the Tax Act was based on our total post-1986 foreign earnings and profits, which we previously deferred from U.S. income taxes under prior tax law. During the year ended December 31, 2017, we recorded a provisional transition tax expense of $401.5 million, which we reduced by $8.1 million during the year ended December 31, 2018. We elected to pay the transition tax over an eight-year period, and our outstanding transition tax liability was $76.7 million and $81.2 million as of December 31, 2019 and 2018, respectively, after the utilization of certain tax credits and tax losses and certain installment payments. Our measurement period adjustments for the remeasurement of deferred tax assets and liabilities and the transition tax reduced our effective tax rate by 9.2% for the year ended December 31, 2018.

Although we continue to evaluate our plans for the reinvestment or repatriation of unremitted foreign earnings, we expect to indefinitely reinvest the earnings of our foreign subsidiaries to fund our international operations, with the exception of certain subsidiaries in Canada and Germany. Accordingly, we have not recorded any provision for additional U.S. or foreign withholding taxes related to the outside basis differences of our foreign subsidiaries in which we expect to indefinitely reinvest their earnings.

The U.S. and non-U.S. components of our income or loss before income taxes for the years ended December 31, 2019, 2018, and 2017 were as follows (in thousands):
 
 
2019
 
2018
 
2017
U.S. loss
 
$
(239,547
)
 
$
(49,353
)
 
$
(22,868
)
Non-U.S. income
 
119,418

 
162,500

 
224,983

(Loss) income before taxes and equity in earnings
 
$
(120,129
)
 
$
113,147

 
$
202,115

The components of our income tax expense or benefit for the years ended December 31, 2019, 2018, and 2017 were as follows (in thousands):
 
 
2019
 
2018
 
2017
Current expense (benefit):
 
 
 
 
 
 
Federal
 
$
9,961

 
$
(44,267
)
 
$
116,956

State
 
3,890

 
(13,568
)
 
3,009

Foreign
 
41,080

 
8,788

 
11,099

Total current expense (benefit)
 
54,931

 
(49,047
)
 
131,064

Deferred (benefit) expense:
 
 

 
 

 
 

Federal
 
(55,647
)
 
31,530

 
226,570

State
 
(6,737
)
 
2,387

 
5,335

Foreign
 
1,973

 
18,571

 
9,027

Total deferred (benefit) expense
 
(60,411
)
 
52,488

 
240,932

Total income tax (benefit) expense
 
$
(5,480
)
 
$
3,441

 
$
371,996



Our Malaysian subsidiary has been granted a long-term tax holiday that expires in 2027. The tax holiday, which generally provides for a full exemption from Malaysian income tax, is conditional upon our continued compliance with meeting certain employment and investment thresholds, which we are currently in compliance with and expect to continue to comply with through the expiration of the tax holiday in 2027.

Our income tax results differed from the amount computed by applying the relevant U.S. statutory federal corporate income tax rate to our income or loss before income taxes for the following reasons for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
 
 
Tax
 
Percent
 
Tax
 
Percent
 
Tax
 
Percent
Statutory income tax (benefit) expense
 
$
(25,227
)
 
21.0
 %
 
$
23,761

 
21.0
 %
 
$
70,740

 
35.0
 %
Provisional effect of Tax Act
 

 
 %
 

 
 %
 
408,090

 
201.9
 %
Changes in valuation allowance
 
(5,735
)
 
4.8
 %
 
19,064

 
16.8
 %
 
9,534

 
4.7
 %
Foreign tax rate differential
 
17,195

 
(14.3
)%
 
14,117

 
12.5
 %
 
(22,048
)
 
(10.9
)%
State tax, net of federal benefit
 
(4,090
)
 
3.4
 %
 
(7,580
)
 
(6.7
)%
 
4,397

 
2.2
 %
Non-deductible expenses
 
11,119

 
(9.3
)%
 
4,636

 
4.1
 %
 
2,703

 
1.3
 %
Share-based compensation
 
(1,594
)
 
1.3
 %
 
(2,105
)
 
(1.9
)%
 
1,161

 
0.6
 %
Change in tax contingency
 
7,096

 
(5.9
)%
 
(6,273
)
 
(5.5
)%
 
959

 
0.5
 %
Foreign dividend income
 
6,718

 
(5.6
)%
 
16,570

 
14.6
 %
 
540

 
0.3
 %
Tax credits
 
(1,996
)
 
1.7
 %
 
(8,431
)
 
(7.5
)%
 
(18,445
)
 
(9.1
)%
Return to provision adjustments
 
14,362

 
(12.0
)%
 
(25,307
)
 
(22.3
)%
 
(35,191
)
 
(17.4
)%
Effect of tax holiday
 
(26,834
)
 
22.4
 %
 
(26,277
)
 
(23.2
)%
 
(46,643
)
 
(23.1
)%
Other
 
3,506

 
(2.9
)%
 
1,266

 
1.1
 %
 
(3,801
)
 
(1.9
)%
Reported income tax (benefit) expense
 
$
(5,480
)
 
4.6
 %
 
$
3,441

 
3.0
 %
 
$
371,996

 
184.1
 %


During the years ended December 31, 2019, 2018, and 2017, we made net tax payments of $34.7 million, $58.8 million, and $1.2 million, respectively.

In May 2017, the U.S. federal income tax authority accepted our election to classify certain of our German subsidiaries as disregarded entities of First Solar, Inc. effective January 1, 2017. Accordingly, during the year ended December 31, 2017, we recorded a benefit of $42.1 million through the tax provision to establish a deferred tax asset for excess foreign tax credits generated as a result of the associated election.

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities calculated under U.S. GAAP and the amounts calculated for preparing our income tax returns. The items that gave rise to our deferred taxes as of December 31, 2019 and 2018 were as follows (in thousands):
 
 
2019
 
2018
Deferred tax assets:
 
 
 
 
Net operating losses
 
$
165,669

 
$
108,149

Accrued expenses
 
134,791

 
55,754

Compensation
 
22,401

 
18,564

Tax credits
 
13,127

 

Long-term contracts
 
11,215

 
4,967

Goodwill
 
5,557

 
9,223

Inventory
 
4,020

 
4,079

Equity in earnings
 
2,906

 
2,693

Deferred expenses
 
2,177

 
2,165

Property, plant and equipment
 

 
18,796

Capitalized interest
 

 
2,948

Other
 
20,143

 
17,373

Deferred tax assets, gross
 
382,006

 
244,711

Valuation allowance
 
(151,705
)
 
(159,546
)
Deferred tax assets, net of valuation allowance
 
230,301

 
85,165

Deferred tax liabilities:
 
 

 
 

Property, plant and equipment
 
(77,794
)
 

Investment in foreign subsidiaries
 
(5,554
)
 
(4,425
)
Acquisition accounting / basis difference
 
(5,356
)
 
(5,420
)
Restricted investments and derivatives
 
(4,330
)
 
(7,586
)
Capitalized interest
 
(2,199
)
 

Other
 
(10,790
)
 
(3,093
)
Deferred tax liabilities
 
(106,023
)
 
(20,524
)
Net deferred tax assets and liabilities
 
$
124,278

 
$
64,641



We use the deferral method of accounting for investment tax credits under which the credits are recognized as reductions in the carrying value of the related assets. The use of the deferral method also results in a basis difference from the recognition of a deferred tax asset and an immediate income tax benefit for the future tax depreciation of the related assets. Such basis differences are accounted for pursuant to the income statement method.

Changes in the valuation allowance against our deferred tax assets were as follows during the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
Valuation allowance, beginning of year
 
$
159,546

 
$
143,818

 
$
123,936

Additions
 
9,161

 
29,359

 
27,591

Reversals
 
(17,002
)
 
(13,631
)
 
(7,709
)
Valuation allowance, end of year
 
$
151,705

 
$
159,546

 
$
143,818



We maintained a valuation allowance of $151.7 million and $159.5 million as of December 31, 2019 and 2018, respectively, against certain of our deferred tax assets, as it is more likely than not that such amounts will not be fully realized. During the year ended December 31, 2019, the valuation allowance decreased by $7.8 million primarily due to the partial release of valuation allowances in jurisdictions with current year operating income, partially offset by an increase in valuation allowances due to current year operating losses in certain other jurisdictions.
In the normal course of business, we establish valuation allowances for our deferred tax assets when the realization of the assets is not more likely than not. We intend to maintain such valuation allowances on our deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of the allowances. Given our anticipated future earnings in a foreign jurisdiction, it is reasonably possible that, within the next 12 months, sufficient positive evidence may become available to allow us to reverse the valuation allowance in such jurisdiction. However, the exact timing and amount of such reversal is subject to change depending on our future earnings in the jurisdiction and other factors.

As of December 31, 2019, we had federal and aggregate state net operating loss carryforwards of $218.3 million and $205.6 million, respectively. As of December 31, 2018, we had federal and aggregate state net operating loss carryforwards of $10.3 million and $72.9 million, respectively. If not used, the federal net operating loss carryforwards incurred prior to 2018 will begin to expire in 2030, and the state net operating loss carryforwards will begin to expire in 2029. Federal net operating losses arising in tax years beginning in 2018 may be carried forward indefinitely but may not be carried back, and the associated deduction is limited to 80% of taxable income. The utilization of our net operating loss carryforwards is also subject to an annual limitation under Section 382 of the Internal Revenue Code due to changes in ownership. Based on our analysis, we do not believe such limitation will impact our realization of the net operating loss carryforwards as we anticipate utilizing them prior to expiration.

As of December 31, 2019, we had U.S. foreign tax credit carryforwards of $11.8 million and federal and state research and development credit carryforwards of $2.9 million available to reduce future federal and state income tax liabilities. If not used, the U.S. foreign tax credits and research and development credits will begin to expire in 2029 and 2040, respectively.

A reconciliation of the beginning and ending amount of liabilities associated with uncertain tax positions for the years ended December 31, 2019, 2018, and 2017 is as follows (in thousands):
 
 
2019
 
2018
 
2017
Unrecognized tax benefits, beginning of year
 
$
72,193

 
$
84,173

 
$
89,256

Increases related to prior year tax positions
 
800

 

 
3,827

Decreases related to prior year tax positions
 

 
(2,979
)
 

Decreases from lapse in statute of limitations
 
(1,539
)
 
(10,704
)
 
(11,840
)
Decreases relating to settlements with authorities
 

 

 
(2,494
)
Increases related to current tax positions
 
715

 
1,703

 
5,424

Unrecognized tax benefits, end of year
 
$
72,169

 
$
72,193

 
$
84,173



If recognized, $69.8 million of unrecognized tax benefits, excluding interest and penalties, would reduce our annual effective tax rate. Due to the uncertain and complex application of tax laws and regulations, it is possible that the ultimate resolution of uncertain tax positions may result in liabilities that could be materially different from these estimates. In such an event, we will record additional tax expense or benefit in the period in which such resolution occurs. Our policy is to recognize any interest and penalties that we may incur related to our tax positions as a component of income tax expense or benefit. During the years ended December 31, 2019, 2018, and 2017, we recognized interest and penalties of $7.9 million, $5.3 million, and $5.5 million, respectively, related to unrecognized tax benefits. It is reasonably possible that $58.6 million of uncertain tax positions will be recognized within the next 12 months due to the expiration of the statute of limitations associated with such positions.

We are subject to audit by federal, state, local, and foreign tax authorities. During the year ended December 31, 2017, we settled certain examinations in Germany, which resulted in a discrete tax expense of $2.5 million. We are currently under examination in Chile, India, Malaysia, and the state of California. We believe that adequate provisions have been made for any adjustments that may result from tax examinations. However, the outcome of tax examinations cannot be predicted with certainty. If any issues addressed by our tax examinations are not resolved in a manner consistent with our expectations, we could be required to adjust our provision for income taxes in the period such resolution occurs.
The following table summarizes the tax years that are either currently under audit or remain open and subject to examination by the tax authorities in the most significant jurisdictions in which we operate:
 
 
Tax Years
Australia
 
2014 - 2018
Japan
 
2014 - 2018
Malaysia
 
2014 - 2018
United States
 
2008 - 2009; 2015 - 2018


In certain of the jurisdictions noted above, we operate through more than one legal entity, each of which has different open years subject to examination. The table above presents the open years subject to examination for the most material of the legal entities in each jurisdiction. Additionally, tax years are not closed until the statute of limitations in each jurisdiction expires. In the jurisdictions noted above, the statute of limitations can extend beyond the open years subject to examination.
v3.19.3.a.u2
Note 19. Net (Loss) Income Per Share (Notes)
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Net Income (Loss) per Share
19. Net (Loss) Income per Share

The calculation of basic and diluted net (loss) income per share for the years ended December 31, 2019, 2018, and 2017 was as follows (in thousands, except per share amounts):
 
 
2019
 
2018
 
2017
Basic net (loss) income per share
 
 
 
 
 
 
Numerator:
 
 
 
 
 
 
Net (loss) income
 
$
(114,933
)
 
$
144,326

 
$
(165,615
)
Denominator:
 
 

 
 

 
 

Weighted-average common shares outstanding
 
105,310

 
104,745

 
104,328

 
 
 
 
 
 
 
Diluted net (loss) income per share
 
 

 
 

 
 

Denominator:
 
 

 
 

 
 

Weighted-average common shares outstanding
 
105,310

 
104,745

 
104,328

Effect of restricted and performance stock units and stock purchase plan shares
 

 
1,368

 

Weighted-average shares used in computing diluted net (loss) income per share
 
105,310

 
106,113

 
104,328

 
 
 
 
 
 
 
Net (loss) income per share:
 
 
 
 
 
 
Basic
 
$
(1.09
)
 
$
1.38

 
$
(1.59
)
Diluted
 
$
(1.09
)
 
$
1.36

 
$
(1.59
)

The following table summarizes the potential shares of common stock that were excluded from the computation of diluted net income per share for the years ended December 31, 2019, 2018, and 2017 as such shares would have had an anti-dilutive effect (in thousands):
 
 
2019
 
2018
 
2017
Anti-dilutive shares
 
868
 
299
 
1,021

v3.19.3.a.u2
Note 20. Accumulated Other Comprehensive Loss (Notes)
12 Months Ended
Dec. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive (Loss) Income
20. Accumulated Other Comprehensive Loss

The following table presents the changes in accumulated other comprehensive loss, net of tax, for the year ended December 31, 2019 (in thousands):
 
 
Foreign Currency Translation Adjustment
 
Unrealized Gain (Loss) on Marketable Securities and Restricted Investments
 
Unrealized Gain (Loss) on Derivative Instruments
 
Total
Balance as of December 31, 2018
 
$
(66,380
)
 
$
10,641

 
$
1,273

 
$
(54,466
)
Other comprehensive (loss) income before reclassifications
 
(5,859
)
 
21,905

 
(1,086
)
 
14,960

Amounts reclassified from accumulated other comprehensive loss
 
(1,190
)
 
(40,621
)
 
(1,205
)
 
(43,016
)
Net tax effect
 

 
3,046

 
142

 
3,188

Net other comprehensive loss
 
(7,049
)
 
(15,670
)
 
(2,149
)
 
(24,868
)
Balance as of December 31, 2019
 
$
(73,429
)
 
$
(5,029
)
 
$
(876
)
 
$
(79,334
)


The following table presents the pretax amounts reclassified from accumulated other comprehensive loss into our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
Comprehensive Income Components
 
Income Statement Line Item
 
2019
 
2018
 
2017
Foreign currency translation adjustment
 
Cost of sales
 
$
1,190

 
$

 
$

Unrealized gain on marketable securities and restricted investments
 
Other income, net
 
$
40,621

 
$
55,405

 
$
49

Unrealized gain (loss) on derivative contracts:
 
 
 
 
 
 
 
 
Foreign exchange forward contracts
 
Net sales
 
124

 
(1,698
)
 

Foreign exchange forward contracts
 
Cost of sales
 
1,081

 
(212
)
 

Foreign exchange forward contracts
 
Foreign currency income (loss), net
 

 
(5,448
)
 

Foreign exchange forward contracts
 
Other income, net
 

 
546

 
(189
)
 
 
 
 
1,205

 
(6,812
)
 
(189
)
Total amount reclassified
 
 
 
$
43,016

 
$
48,593

 
$
(140
)

v3.19.3.a.u2
Note 21. Segment and Geographical Information (Notes)
12 Months Ended
Dec. 31, 2019
Segment Reporting [Abstract]  
Segment and Geographical Information
21. Segment and Geographical Information

We operate our business in two segments. Our modules segment involves the design, manufacture, and sale of CdTe solar modules, which convert sunlight into electricity. Third-party customers of our modules segment include integrators and operators of PV solar power systems. Our second segment is our systems segment, through which we provide power plant solutions, which include (i) project development, (ii) EPC services, and (iii) O&M services. We may provide any combination of individual products and services within such capabilities (including, with respect to EPC services, by contracting with third parties) depending upon the customer and market opportunity. Our systems segment customers include utilities, independent power producers, commercial and industrial companies, and other system owners. As part of our systems segment, we may also temporarily own and operate certain of our systems for a period of time based on strategic opportunities or market factors.

In September 2019, we announced our transition from an internal EPC service model in the United States to an external model, in which we expect to leverage the capabilities of third-party EPC services in providing power plant solutions to our systems segment customers. This transition is not expected to affect any projects currently under construction.
The shift to an external EPC service model in the United States aligns with our typical model in international markets and is facilitated, in part, by our Series 6 module technology and its improved BoS compatibility.

Our segments are managed by our Chief Executive Officer, who is also considered our chief operating decision maker (“CODM”). Our CODM views sales of solar modules or systems as the primary drivers of our resource allocation, profitability, and cash flows. Our modules segment contributes to our operating results by providing the fundamental technologies and solar modules that drive our business and sales opportunities, and our systems segment contributes to our operating results by using such modules as part of a range of comprehensive PV solar energy solutions, depending on the customer and market opportunity. Our CODM generally makes decisions about allocating resources to our segments and assessing their performance based on gross profit. However, information about segment assets is not reported to the CODM for purposes of making such decisions. Accordingly, we exclude such asset information from our reportable segment financial disclosures.

The following tables present certain financial information for our reportable segments for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
Year Ended December 31, 2019
 
 
Modules
 
Systems
 
Total
Net sales
 
$
1,460,116

 
$
1,603,001

 
$
3,063,117

Gross profit
 
290,079

 
259,133

 
549,212

Depreciation and amortization expense
 
161,993

 
21,708

 
183,701

Goodwill
 
14,462

 

 
14,462

 
 
Year Ended December 31, 2018
 
 
Modules
 
Systems
 
Total
Net sales
 
$
502,001

 
$
1,742,043

 
$
2,244,044

Gross (loss) profit
 
(50,467
)
 
442,644

 
392,177

Depreciation and amortization expense
 
85,797

 
18,647

 
104,444

Goodwill
 
14,462

 

 
14,462

 
 
Year Ended December 31, 2017
 
 
Modules
 
Systems
 
Total
Net sales
 
$
806,398

 
$
2,134,926

 
$
2,941,324

Gross profit
 
112,338

 
436,609

 
548,947

Depreciation and amortization expense
 
67,597

 
24,302

 
91,899



The following table presents net sales for the years ended December 31, 2019, 2018, and 2017 by geographic region, based on the customer country of invoicing (in thousands):
 
 
2019
 
2018
 
2017
United States
 
$
2,659,940

 
$
1,478,034

 
$
2,273,774

Australia
 
138,327

 
153,163

 
108,643

France
 
88,816

 
28,796

 
62,953

Japan
 
34,234

 
234,814

 
4,405

India
 
7,451

 
232,130

 
141,491

Turkey
 
426

 
19,354

 
124,433

All other foreign countries
 
133,923

 
97,753

 
225,625

Net sales
 
$
3,063,117

 
$
2,244,044

 
$
2,941,324


The following table presents long-lived assets, which include property, plant and equipment, PV solar power systems, project assets (current and noncurrent), and operating lease assets as of December 31, 2019 and 2018 by geographic region, based on the physical location of the assets (in thousands):
 
 
2019
 
2018
United States
 
$
1,077,593

 
$
659,854

Vietnam
 
699,841

 
702,071

Malaysia
 
637,322

 
532,418

Japan
 
416,375

 
319,571

Chile
 
234,470

 
240,495

All other foreign countries
 
75,356

 
108,871

Long-lived assets
 
$
3,140,957

 
$
2,563,280


v3.19.3.a.u2
Note 22. Concentrations of Risks (Notes)
12 Months Ended
Dec. 31, 2019
Risks and Uncertainties [Abstract]  
Concentrations of Risks
22. Concentrations of Risks

Customer Concentration. The following customers each comprised 10% or more of our total net sales for the years ended December 31, 2019, 2018, and 2017:
 
 
2019
 
2018
 
2017
 
 
% of Net Sales
 
% of Net Sales
 
% of Net Sales
Customer #1
 
16
%
 
*

 
*

Customer #2
 
*

 
16
%
 
*

Customer #3
 
*

 
13
%
 
47
%
——————————
*
Net sales for these customers were less than 10% of our total net sales for the period.

Geographic Risk. During the year ended December 31, 2019, our third-party solar module and solar power system net sales were predominantly in the United States. The concentration of our net sales in a limited number of geographic regions exposes us to local economic, public policy, and regulatory risks in such regions.

Production. Our products include components that are available from a limited number of suppliers or sources. Shortages of essential components could occur due to increases in demand or interruptions of supply, thereby adversely affecting our ability to meet customer demand for our products. Our solar modules are currently produced at our facilities in Perrysburg, Ohio; Lake Township, Ohio; Kulim, Malaysia; and Ho Chi Minh City, Vietnam. Damage to or disruption of these facilities could interrupt our business and adversely affect our ability to generate net sales.
v3.19.3.a.u2
Note 2. Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Basis of Presentation
Basis of Presentation. These consolidated financial statements include the accounts of First Solar, Inc. and its subsidiaries and are prepared in accordance with U.S. GAAP. We eliminated all intercompany transactions and balances during consolidation. Certain prior year balances were reclassified to conform to the current year presentation.
Use of Estimates
Use of Estimates. The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and the accompanying notes. On an ongoing basis, we evaluate our estimates, including those related to inputs used to recognize revenue over time, accrued solar module collection and recycling liabilities, product warranties, accounting for income taxes, and long-lived asset impairments. Despite our intention to establish accurate estimates and reasonable assumptions, actual results could differ materially from such estimates and assumptions.

Fair Value Measurements
Fair Value Measurements. We measure certain assets and liabilities at fair value, which is defined as the price that would be received from the sale of an asset or paid to transfer a liability (i.e., an exit price) on the measurement date in an orderly transaction between market participants in the principal or most advantageous market for the asset or liability. Our fair value measurements use the following hierarchy, which prioritizes valuation inputs based on the extent to which the inputs are observable in the market.

Level 1 – Valuation techniques in which all significant inputs are unadjusted quoted prices from active markets for assets or liabilities that are identical to the assets or liabilities being measured.

Level 2 – Valuation techniques in which significant inputs include quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active. Also, model-derived valuations in which all significant inputs are observable in active markets are Level 2 valuation techniques.

Level 3 – Valuation techniques in which one or more significant inputs are unobservable. Such inputs reflect our estimate of assumptions that market participants would use to price an asset or liability.

Cash and Cash Equivalents, and Restricted Cash
Cash and Cash Equivalents. We consider highly liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents with the exception of time deposits, which are presented as marketable securities.

Restricted Cash. Restricted cash consists of cash and cash equivalents held by various banks to secure certain of our letters of credit and other such deposits designated for the construction or operation of systems projects as well as the payment of amounts related to project specific debt financings. Restricted cash also includes cash and cash equivalents held in custodial accounts to fund the estimated future costs of our solar module collection and recycling obligations.
Restricted cash for our letters of credit is classified as current or noncurrent based on the maturity date of the corresponding letter of credit. Restricted cash for project construction, operation, and financing is classified as current or noncurrent based on the intended use of the restricted funds. Restricted cash held in custodial accounts is classified as noncurrent to align with the nature of the corresponding collection and recycling liabilities.

Marketable Securities and Restricted Investments
Marketable Securities and Restricted Investments. We determine the classification of our marketable securities and restricted investments at the time of purchase and reevaluate such designation at each balance sheet date. As of December 31, 2019 and 2018, all of our marketable securities and restricted investments were classified as available-for-sale debt securities. Accordingly, we record them at fair value and account for the net unrealized gains and losses as part of “Accumulated other comprehensive loss” until realized. We record realized gains and losses on the sale of our marketable securities and restricted investments in “Other income, net” computed using the specific identification method.

We may sell marketable securities prior to their stated maturities after consideration of our liquidity requirements. We view unrestricted securities with maturities beyond 12 months as available to support our current operations and, accordingly, classify such securities as current assets under “Marketable securities” in the consolidated balance sheets. Restricted investments consist of long-term duration marketable securities that we hold in custodial accounts to fund the estimated future costs of our solar module collection and recycling obligations. Accordingly, we classify restricted investments as noncurrent assets under “Restricted cash and investments” in the consolidated balance sheets.

All of our available-for-sale marketable securities and restricted investments are subject to a periodic impairment review. We consider a marketable security or restricted investment to be impaired when its fair value is less than its cost basis, in which case we would further review the security or investment to determine if it is other-than-temporarily impaired. In performing such an evaluation, we review factors such as the length of time and the extent to which its fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, our intent to sell, and whether it is more likely than not that we will be required to sell the marketable security or restricted investment before we have recovered its cost basis. If a marketable security or restricted investment were other-than-temporarily impaired, we write it down through “Other income, net” to its impaired value and establish that value as its new cost basis.
Accounts Receivables Trade and Allowance for Doubtful Accounts
Accounts Receivable Trade and Allowance for Doubtful Accounts. We record trade accounts receivable for our unconditional rights to consideration arising from our performance under contracts with customers. The carrying value of such receivables, net of the allowance for doubtful accounts, represents their estimated net realizable value. We estimate our allowance for doubtful accounts for specific trade receivable balances based on historical collection trends, the age of outstanding trade receivables, existing economic conditions, and the financial security, if any, associated with the receivables. Past-due trade receivable balances are written off when our internal collection efforts have been unsuccessful.

Our module and other equipment sales generally include up to 45-day payment terms following the transfer of control of the products to the customer. In addition, certain module and equipment sale agreements may require a down payment for a portion of the transaction price upon or shortly after entering into the agreement or related purchase order. Payment terms for sales of our solar power systems, EPC services, and operations and maintenance services vary by contract but are generally due upon demand or within several months of satisfying the associated performance obligations. As a practical expedient, we do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised product or service to a customer and when the customer pays for that product or service will be one year or less. We typically do not include extended payment terms in our contracts with customers.
Accounts Receivable, Unbilled
Accounts Receivable, Unbilled. Accounts receivable, unbilled represents a contract asset for revenue that has been recognized in advance of billing the customer, which is common for long-term construction contracts. For example, we typically recognize revenue from contracts for the construction and sale of PV solar power systems over time using cost based input methods, which recognize revenue and gross profit as work is performed based on the relationship between actual costs incurred compared to the total estimated costs of the contract. Accordingly, revenue could be
recognized in advance of billing the customer, resulting in an amount recorded to “Accounts receivable, unbilled and retainage.” Once we have an unconditional right to consideration under a construction contract, we typically bill our customer and reclassify the “Accounts receivable, unbilled and retainage” to “Accounts receivable trade, net.” Billing requirements vary by contract but are generally structured around the completion of certain construction milestones. We assess our unbilled accounts receivable for impairment in accordance with the allowance for doubtful accounts policy described above.
Retainage
Retainage. Certain of our EPC contracts for PV solar power systems we build contain retainage provisions. Retainage represents a contract asset for the portion of the contract price earned by us for work performed, but held for payment by the customer as a form of security until we reach certain construction milestones. We consider whether collectibility of such retainage is reasonably assured in connection with our overall assessment of the collectibility of amounts due or that will become due under our EPC contracts. Retainage included within “Accounts receivable, unbilled and retainage” is expected to be billed and collected within the next 12 months. After we satisfy the EPC contract requirements and have an unconditional right to consideration, we typically bill our customer for retainage and reclassify such amount to “Accounts receivable trade, net.”
Inventories - Current and Noncurrent
Inventories – Current and Noncurrent. We report our inventories at the lower of cost or net realizable value. We determine cost on a first-in, first-out basis and include both the costs of acquisition and manufacturing in our inventory costs. These costs include direct materials, direct labor, and indirect manufacturing costs, including depreciation and amortization. Our capitalization of indirect costs is based on the normal utilization of our plants. If our plant utilization is abnormally low, the portion of our indirect manufacturing costs related to the abnormal utilization level is expensed as incurred. Other abnormal manufacturing costs, such as wasted materials or excess yield losses, are also expensed as incurred. Finished goods inventory is comprised exclusively of solar modules that have not yet been installed in a PV solar power plant under construction or sold to a third-party customer.

As needed, we may purchase a critical raw material that is used in our core production process in quantities that exceed anticipated consumption within our normal operating cycle, which is 12 months. We classify such raw materials that we do not expect to consume within our normal operating cycle as noncurrent.

We regularly review the cost of inventories, including noncurrent inventories, against their estimated net realizable value and record write-downs if any inventories have costs in excess of their net realizable values. We also regularly evaluate the quantities and values of our inventories, including noncurrent inventories, in light of current market conditions and trends, among other factors, and record write-downs for any quantities in excess of demand or for any obsolescence. This evaluation considers the use of modules in our systems business or product warranties, module selling prices, product obsolescence, strategic raw material requirements, and other factors.

Balance of Systems Parts
Balance of Systems Parts. BoS parts represent mounting, electrical, and other parts purchased for the construction and maintenance of PV solar power systems. These parts, which are not yet installed in a system, may include posts, tilt brackets, tables, harnesses, combiner boxes, inverters, cables, tracker equipment, and other items that we may purchase or assemble for the systems we construct. We carry BoS parts at the lower of cost or net realizable value and determine their costs on a weighted-average basis. BoS parts do not include any solar modules that we manufacture.

Property, Plant and Equipment
Property, Plant and Equipment. We report our property, plant and equipment at cost, less accumulated depreciation. Cost includes the price paid to acquire or construct the assets, required installation costs, interest capitalized during the construction period, and any expenditures that substantially add to the value of or substantially extend the useful life of the assets. We capitalize costs related to computer software obtained or developed for internal use, which generally includes enterprise-level business and finance software that we customize to meet our specific operational requirements. We expense repair and maintenance costs at the time we incur them.

We begin depreciation for our property, plant and equipment when the assets are placed in service. We consider such assets to be placed in service when they are both in the location and condition for their intended use. We compute depreciation expense using the straight-line method over the estimated useful lives of assets, as presented in the table
below. We depreciate leasehold improvements over the shorter of their estimated useful lives or the remaining term of the lease. The estimated useful life of an asset is reassessed whenever applicable facts and circumstances indicate a change in the estimated useful life of such asset has occurred.
 
 
 
Useful Lives
in Years
Buildings and building improvements
 
25 – 40
Manufacturing machinery and equipment
 
5 – 15
Furniture, fixtures, computer hardware, and computer software
 
3 – 7
Leasehold improvements
 
up to 15

PV Solar Power Systems
PV Solar Power Systems. PV solar power systems represent project assets that we may temporarily own and operate after being placed in service. We report our PV solar power systems at cost, less accumulated depreciation. When we are entitled to incentive tax credits for our systems, we reduce the related carrying value of the assets by the amount of the tax credits, which reduces future depreciation. We begin depreciation for PV solar power systems when they are placed in service. We compute depreciation expense for the systems using the straight-line method over the shorter of the term of the related PPA or 25 years. Accordingly, our current PV solar power systems have estimated useful lives ranging from 19 to 25 years.
Project Assets
Project Assets. Project assets primarily consist of costs related to solar power projects in various stages of development that are capitalized prior to the completion of the sale of the project, including projects that may have begun commercial operation under PPAs and are actively marketed and intended to be sold. These project related costs include costs for land, development, and construction of a PV solar power system. Development costs may include legal, consulting, permitting, transmission upgrade, interconnection, and other similar costs. We typically classify project assets as noncurrent due to the nature of solar power projects (as long-lived assets) and the time required to complete all activities to develop, construct, and sell projects, which is typically longer than 12 months. Once we enter into a definitive sales agreement, we classify project assets as current until the sale is completed and we have recognized the sale as revenue. Any income generated by a project while it remains within project assets is accounted for as a reduction to our basis in the project. If a project is completed and begins commercial operation prior to the closing of a sales arrangement, the completed project will remain in project assets until placed in service. We present all expenditures related to the development and construction of project assets, whether fully or partially owned, as a component of cash flows from operating activities.

We review project assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. We consider a project commercially viable or recoverable if it is anticipated to be sold for a profit once it is either fully developed or fully constructed. We consider a partially developed or partially constructed project commercially viable or recoverable if the anticipated selling price is higher than the carrying value of the related project assets. We examine a number of factors to determine if the project is expected to be recoverable, including whether there are any changes in environmental, permitting, market pricing, regulatory, or other conditions that may impact the project. Such changes could cause the costs of the project to increase or the selling price of the project to decrease. If a project is not considered recoverable, we impair the respective project assets and adjust the carrying value to the estimated fair value, with the resulting impairment recorded within “Selling, general and administrative” expense.

Interest Capitalization
Interest Capitalization. We capitalize interest as part of the historical cost of acquiring, developing, or constructing certain assets, including property, plant and equipment; project assets; and PV solar power systems. Interest capitalized for property, plant and equipment or PV solar power systems is depreciated over the estimated useful life of the related assets when they are placed in service. We charge interest capitalized for project assets to cost of sales when such assets are sold. We capitalize interest to the extent that interest has been incurred and payments have been made to acquire, construct, or develop an asset. We cease capitalization of interest for assets in development or under construction if the assets are substantially complete or if we have sold such assets.

Asset Impairments
Asset Impairments. We assess long-lived assets classified as “held and used,” including our property, plant and equipment; PV solar power systems; project assets; operating lease assets; and intangible assets for impairment whenever events or changes in circumstances arise, including consideration of technological obsolescence, that may indicate that the carrying amount of such assets may not be recoverable. These events and changes in circumstances may include a significant decrease in the market price of a long-lived asset; a significant adverse change in the extent or manner in which a long-lived asset is being used or in its physical condition; a significant adverse change in the business climate that could affect the value of a long-lived asset; an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction of a long-lived asset; a current-period operating or cash flow loss combined with a history of such losses or a projection of future losses associated with the use of a long-lived asset; or a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. For purposes of recognition and measurement of an impairment loss, long-lived assets are grouped with other assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities.

When impairment indicators are present, we compare undiscounted future cash flows, including the eventual disposition of the asset group at market value, to the asset group’s carrying value to determine if the asset group is recoverable. If the carrying value of the asset group exceeds the undiscounted future cash flows, we measure any impairment by comparing the fair value of the asset group to its carrying value. Fair value is generally determined by considering (i) internally developed discounted cash flows for the asset group, (ii) third-party valuations, and/or (iii) information available regarding the current market value for such assets. If the fair value of an asset group is determined to be less than its carrying value, an impairment in the amount of the difference is recorded in the period that the impairment indicator occurs. Estimating future cash flows requires significant judgment, and such projections may vary from the cash flows eventually realized.

We consider a long-lived asset to be abandoned after we have ceased use of the asset and we have no intent to use or repurpose it in the future. Abandoned long-lived assets are recorded at their salvage value, if any.

We classify long-lived assets we plan to sell, excluding project assets and PV solar power systems, as held for sale on our consolidated balance sheets only after certain criteria have been met including: (i) management has the authority and commits to a plan to sell the asset, (ii) the asset is available for immediate sale in its present condition, (iii) an active program to locate a buyer and the plan to sell the asset have been initiated, (iv) the sale of the asset is probable within 12 months, (v) the asset is being actively marketed at a reasonable sales price relative to its current fair value, and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made. We record assets held for sale at the lower of their carrying value or fair value less costs to sell. If, due to unanticipated circumstances, such assets are not sold in the 12 months after being classified as held for sale, then held for sale classification would continue as long as the above criteria are still met.

Ventures and Variable Interest Entities
Ventures and Variable Interest Entities. In the normal course of business, we establish wholly owned project companies which may be considered variable interest entities (“VIEs”). We consolidate wholly owned VIEs when we are considered the primary beneficiary of such entities. Additionally, we have, and may in the future form, joint venture type arrangements, including partnerships and partially owned limited liability companies or similar legal structures, with one or more third parties primarily to develop, construct, own, and/or sell solar power projects. We analyze all of our ventures and classify them into two groups: (i) ventures that must be consolidated because they are either not VIEs and we hold a majority voting interest, or because they are VIEs and we are the primary beneficiary and (ii) ventures that do not need to be consolidated because they are either not VIEs and we hold a minority voting interest, or because they are VIEs and we are not the primary beneficiary.

Ventures are considered VIEs if (i) the total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support; (ii) as a group, the holders of the equity investment at risk lack the ability to make certain decisions, the obligation to absorb expected losses, or the right to receive expected residual returns; or (iii) an equity investor has voting rights that are disproportionate to its economic interest and substantially all of the entity’s activities are conducted on behalf of that investor. Our venture agreements typically
require us to fund some form of capital for the development and construction of a project, depending upon the opportunity and the market in which our ventures are located.

We are considered the primary beneficiary of and are required to consolidate a VIE if we have the power to direct the activities that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the entity. If we determine that we do not have the power to direct the activities that most significantly impact the entity, then we are not the primary beneficiary of the VIE.
Equity Method Investments
Equity Method Investments. We use the equity method of accounting for our investments when we have the ability to significantly influence, but not control, the operations or financial activities of the investee. As part of this evaluation, we consider our participating and protective rights in the venture as well as its legal form. We record our equity method investments at cost and subsequently adjust their carrying amount each period for our share of the earnings or losses of the investee and other adjustments required by the equity method of accounting. Distributions received from our equity method investments are recorded as reductions in the carrying value of such investments and are classified on the consolidated statements of cash flows pursuant to the cumulative earnings approach. Under this approach, distributions received are considered returns on investment and are classified as cash inflows from operating activities unless our cumulative distributions received, less distributions received in prior periods that were determined to be returns of investment, exceed our cumulative equity in earnings recognized from the investment. When such an excess occurs, the current period distributions up to this excess are considered returns of investment and are classified as cash inflows from investing activities.

We monitor equity method investments for impairment and record reductions in their carrying values if the carrying amount of an investment exceeds its fair value. An impairment charge is recorded when such impairment is deemed to be other-than-temporary. To determine whether an impairment is other-than-temporary, we consider our ability and intent to hold the investment until the carrying amount is fully recovered. Circumstances that indicate an other-than-temporary impairment may have occurred include factors such as decreases in quoted market prices or declines in the operations of the investee. The evaluation of an investment for potential impairment requires us to exercise significant judgment and to make certain assumptions. The use of different judgments and assumptions could result in different conclusions. We recorded impairment losses related to our equity method investments of $3.5 million and $2.0 million, net of tax, during the years ended December 31, 2018 and 2017, respectively.
Goodwill
Goodwill. Goodwill represents the excess of the purchase price of acquired businesses over the estimated fair value assigned to the individual assets acquired and liabilities assumed. We do not amortize goodwill, but instead are required to test goodwill for impairment at least annually. We perform impairment tests between the scheduled annual test in the fourth quarter if facts and circumstances indicate that it is more likely than not that the fair value of a reporting unit that has goodwill is less than its carrying value.

We may first make a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying value to determine whether it is necessary to perform a quantitative goodwill impairment test. Such qualitative impairment test considers various factors, including macroeconomic conditions, industry and market considerations, cost factors, the overall financial performance of a reporting unit, and any other relevant events affecting our company or a reporting unit. If we determine through the qualitative assessment that a reporting unit’s fair value is more likely than not greater than its carrying value, the quantitative impairment test is not required. If the qualitative assessment indicates it is more likely than not that a reporting unit’s fair value is less than its carrying value, we perform a quantitative impairment test. We may also elect to proceed directly to the quantitative impairment test without considering qualitative factors.

The quantitative impairment test is the comparison of the fair value of a reporting unit with its carrying amount, including goodwill. Our reporting units consist of our modules and systems businesses. We define the fair value of a reporting unit as the price that would be received to sell the unit as a whole in an orderly transaction between market participants at the measurement date. We primarily use an income approach to estimate the fair value of our reporting units. Significant
judgment is required when estimating the fair value of a reporting unit, including the forecasting of future operating results and the selection of discount and expected future growth rates used to determine projected cash flows. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill is not impaired, and no further analysis is required. Conversely, if the carrying value of a reporting unit exceeds its estimated fair value, we record an impairment loss equal to the excess, not to exceed the total amount of goodwill allocated to the reporting unit.
Intangible Assets
Intangible Assets. Intangible assets primarily include developed technologies, certain PPAs acquired after the associated PV solar power systems were placed in service, and our internally-generated intangible assets, substantially all of which were patents on technologies related to our products and production processes. We record an asset for patents after the patent has been issued based on the legal, filing, and other costs incurred to secure it. We amortize intangible assets on a straight-line basis over their estimated useful lives, which generally range from 10 to 20 years.

Leases
Leases. Upon commencement of a lease, we recognize a lease liability for the present value of the lease payments not yet paid, discounted using an interest rate that represents our ability to borrow on a collateralized basis over a period that approximates the lease term. We also recognize a lease asset, which represents our right to control the use of the underlying property, plant or equipment, at an amount equal to the lease liability, adjusted for prepayments and initial direct costs.

We subsequently recognize the cost of operating leases on a straight-line basis over the lease term, and any variable lease costs, which represent amounts owed to the lessor that are not fixed per the terms of the contract, are recognized in the period in which they are incurred. Any costs included in our lease arrangements that are not directly related to the leased assets, such as maintenance charges, are included as part of the lease costs. Leases with an initial term of one year or less are considered short-term leases and are not recognized as lease assets and liabilities. We also recognize the cost of such short-term leases on a straight-line basis over the term of the underlying agreement.

Many of our leases, in particular those related to systems project land, contain renewal or termination options that are exercisable at our discretion. At the commencement date of a lease, we include in the lease term any periods covered by a renewal option, and exclude from the lease term any periods covered by a termination option, to the extent we are reasonably certain to exercise such options. In making this determination, we seek to align the lease term with the expected economic life of the underlying asset.
Deferred Revenue
Deferred Revenue. When we receive consideration, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a sales contract, we record deferred revenue, which represents a contract liability. Such deferred revenue typically results from billings in excess of costs incurred on long-term construction contracts and advance payments received on sales of solar modules. As a practical expedient, we do not adjust the consideration in a contract for the effects of a significant financing component when we expect, at contract inception, that the period between a customer’s advance payment and our transfer of a promised product or service to the customer will be one year or less. Additionally, we do not adjust the consideration in a contract for the effects of a significant financing component when the consideration is received as a form of performance security.

Product Warranties
Product Warranties. We provide a limited PV solar module warranty covering defects in materials and workmanship under normal use and service conditions for approximately 10 years. We also typically warrant that modules installed in accordance with agreed-upon specifications will produce at least 98% of their labeled power output rating during the first year, with the warranty coverage reducing by 0.5% every year thereafter throughout the approximate 25-year limited power output warranty period. In resolving claims under both the limited defect and power output warranties, we typically have the option of either repairing or replacing the covered modules or, under the limited power output warranty, providing additional modules to remedy the power shortfall. Our limited module warranties also include an option for us to remedy claims under such warranties, generally exercisable only after the second year of the warranty period, by making certain cash payments. Under the limited workmanship warranty, the optional cash payment will be equal to the original purchase price of the module, reduced by a degradation factor, and under the limited power output warranty, the cash payment will be equal to the shortfall in power output. Such limited module warranties are standard
for module sales and may be transferred from the original purchasers of the solar modules to subsequent purchasers upon resale.

As an alternative form of our standard limited module power output warranty, we also offer an aggregated or system-level limited module performance warranty. This system-level limited module performance warranty is designed for utility-scale systems and provides 25-year system-level energy degradation protection. This warranty represents a practical expedient to address the challenge of identifying, from the potential millions of modules installed in a utility-scale system, individual modules that may be performing below warranty thresholds by focusing on the aggregate energy generated by the system rather than the power output of individual modules. The system-level limited module performance warranty is typically calculated as a percentage of a system’s expected energy production, adjusted for certain actual site conditions, with the warranted level of performance declining each year in a linear fashion, but never falling below 80% during the term of the warranty. In resolving claims under the system-level limited module performance warranty to restore the system to warranted performance levels, we first must validate that the root cause of the issue is due to module performance; we then have the option of either repairing or replacing the covered modules, providing supplemental modules, or making a cash payment. Consistent with our limited module power output warranty, when we elect to satisfy a warranty claim by providing replacement or supplemental modules under the system-level module performance warranty, we do not have any obligation to pay for the labor to remove or install modules.

In addition to our limited solar module warranties described above, for PV solar power systems we construct, we typically provide limited warranties for defects in engineering design, installation, and BoS part workmanship for a period of one to two years following the substantial completion of a system or a block within the system. In resolving claims under such BoS warranties, we have the option of remedying the defect through repair or replacement.

When we recognize revenue for module or system sales, we accrue liabilities for the estimated future costs of meeting our limited warranty obligations. We make and revise these estimates based primarily on the number of solar modules under warranty installed at customer locations, our historical experience with and projections of warranty claims, and our estimated per-module replacement costs. We also monitor our expected future module performance through certain quality and reliability testing and actual performance in certain field installation sites.

Accrued Solar Module Collection and Recycling Liability
Accrued Solar Module Collection and Recycling Liability. Historically, we recognized expense at the time of sale for the estimated cost of our future obligations for collecting and recycling solar modules covered by our solar module collection and recycling program. See Note 12. “Solar Module Collection and Recycling Liability” for further information.
Derivative Instruments
Derivative Instruments. We recognize derivative instruments on our consolidated balance sheets at their fair value. On the date that we enter into a derivative contract, we designate the derivative instrument as a fair value hedge, a cash flow hedge, a hedge of a net investment in a foreign operation, or a derivative instrument that will not be accounted for using hedge accounting methods. As of December 31, 2019 and 2018, all of our derivative instruments were designated either as cash flow hedges or as derivative instruments not accounted for using hedge accounting methods.

We record changes in the fair value of a derivative instrument that is highly effective and that is designated and qualifies as a cash flow hedge in “Accumulated other comprehensive loss” until our earnings are affected by the variability of the cash flows from the underlying hedged item. We record any amounts excluded from effectiveness testing in current period earnings in the same income statement line item in which the earnings effect of the hedged item is reported. We report changes in the fair value of derivative instruments that are not designated or do not qualify for hedge accounting in current period earnings. We classify cash flows from derivative instruments on the consolidated statements of cash flows in the same category as the item being hedged or on a basis consistent with the nature of the instrument.

At the inception of a hedge, we formally document all relationships between hedging instruments and the underlying hedged items as well as our risk-management objective and strategy for undertaking the hedge transaction. We also formally assess (both at inception and on an ongoing basis) whether our derivative instruments are highly effective in offsetting changes in the fair value or cash flows of the underlying hedged items and whether those derivatives are
expected to remain highly effective in future periods. When we determine that a derivative instrument is not highly effective as a hedge, we discontinue hedge accounting prospectively. In all situations in which we discontinue hedge accounting and the derivative instrument remains outstanding, we carry the derivative instrument at its fair value on our consolidated balance sheets and recognize subsequent changes in its fair value in current period earnings.
Revenue Recognition
Revenue Recognition – Module and Other Equipment Sales. We recognize revenue for module and other equipment sales (e.g., module plus arrangements) at a point in time following the transfer of control of such products to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contracts. For module and other equipment sales contracts that contain multiple performance obligations, such as the shipment or delivery of solar modules and other BoS parts, we allocate the transaction price to each performance obligation identified in the contract based on relative standalone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product is transferred to the customer, in satisfaction of the corresponding performance obligations.

Revenue Recognition – Solar Power System Sales and/or EPC Services. We recognize revenue for the sale of a development project, which excludes EPC services, or for the sale of a completed system when we enter into the associated sales contract with the customer. For other sales of solar power systems and/or EPC services, we generally recognize revenue over time as our performance creates or enhances an energy generation asset controlled by the customer. Furthermore, the sale of a solar power system combined with EPC services represents a single performance obligation for the development and construction of a single generation asset. For such arrangements, we recognize revenue and gross profit as work is performed using cost based input methods, for which we determine our progress toward contract completion based on the relationship between the actual costs incurred and the total estimated costs (including solar module costs) of the contract.

Such revenue recognition is dependent, in part, on our customers’ commitment to perform their obligations under the contract, which is typically measured through the receipt of cash deposits or other forms of financial security issued by creditworthy financial institutions or parent entities. For sales of solar power systems in which we obtain an interest in the project sold to the customer, we recognize all of the revenue for the consideration received, including the fair value of the noncontrolling interest we obtained, and defer any profit associated with the interest obtained through “Equity in earnings, net of tax.”

Cost based input methods of revenue recognition are considered a faithful depiction of our efforts to satisfy long-term construction contracts and therefore reflect the transfer of goods to a customer under such contracts. Costs incurred that do not contribute to satisfying our performance obligations (i.e., “inefficient costs”) are excluded from our input methods of revenue recognition as the amounts are not reflective of our transferring control of the system to the customer. Costs incurred toward contract completion may include costs associated with solar modules, direct materials, labor, subcontractors, and other indirect costs related to contract performance. We recognize solar module and direct material costs as incurred when such items are installed in a system.

Cost based input methods of revenue recognition require us to make estimates of net contract revenues and costs to complete our projects. In making such estimates, significant judgment is required to evaluate assumptions related to the amount of net contract revenues, including the impact of any performance incentives, liquidated damages, and other payments to customers. Significant judgment is also required to evaluate assumptions related to the costs to complete our projects, including materials, labor, contingencies, and other system costs. If the estimated total costs on any contract, including any inefficient costs, are greater than the net contract revenues, we recognize the entire estimated loss in the period the loss becomes known. The cumulative effect of revisions to estimates related to net contract revenues or costs to complete contracts are recorded in the period in which the revisions to estimates are identified and the amounts can be reasonably estimated. The effect of the changes on future periods are recognized as if the revised estimates had been used since revenue was initially recognized under the contract. Such revisions could occur in any reporting period, and the effects may be material depending on the size of the contracts or the changes in estimates.

As part of our solar power system sales, we conduct performance testing of a system prior to substantial completion to confirm the system meets its operational and capacity expectations noted in the EPC agreement. In addition, we may provide an energy performance test during the first or second year of a system’s operation to demonstrate that the actual energy generation for the applicable period meets or exceeds the modeled energy expectation, after certain adjustments. In certain instances, a bonus payment may be received at the end of the applicable test period if the system performs above a specified level. Conversely, if there is an underperformance event with regards to these tests, we may incur liquidated damages as a percentage of the EPC contract price. Such performance guarantees represent a form of variable consideration and are estimated at contract inception at their most likely amount and updated at the end of each reporting period as additional performance data becomes available and only to the extent that it is probable that a significant reversal of any incremental revenue will not occur.

Revenue Recognition – Operations and Maintenance. We recognize revenue for standard, recurring O&M services over time as customers receive and consume the benefits of such services, which typically include 24/7 system monitoring, certain PPA and other agreement compliance, NERC compliance, large generator interconnection agreement compliance, energy forecasting, performance engineering analysis, regular performance reporting, turn-key maintenance services including spare parts and corrective maintenance repair, warranty management, and environmental services. Other ancillary O&M services, such as equipment replacement, weed abatement, landscaping, or solar module cleaning, are recognized as revenue as the services are provided to the customer. Costs of O&M services are expensed in the period in which they are incurred.

As part of our O&M service offerings, we typically offer an effective availability guarantee, which stipulates that a system will be available to generate a certain percentage of total possible energy during a specific period after adjusting for factors outside our control as the service provider. If system availability exceeds a contractual threshold, we may receive a bonus payment, or if system availability falls below a separate threshold, we may incur liquidated damages for certain lost energy under the PPA. Such bonuses or liquidated damages represent a form of variable consideration and are estimated and recognized over time as customers receive and consume the benefits of the O&M services.

Revenue Recognition – Energy Generation. We sell energy generated by PV solar power systems under PPAs or on an open contract basis. For energy sold under PPAs, we recognize revenue each period based on the volume of energy delivered to the customer (i.e., the PPA off-taker) and the price stated in the PPA. For energy sold on an open contract basis, we recognize revenue at the point in time the energy is delivered to the grid based on the prevailing spot market prices.
Shipping and Handling Costs
Shipping and Handling Costs. We account for shipping and handling activities related to contracts with customers as costs to fulfill our promise to transfer the associated products. Accordingly, we record amounts billed for shipping and handling costs as a component of net sales, and classify such costs as a component of cost of sales.
Taxes Collected from Customers and Remitted to Governmental Authorities
Taxes Collected from Customers and Remitted to Governmental Authorities. We exclude from our measurement of transaction prices all taxes assessed by governmental authorities that are both (i) imposed on and concurrent with a specific revenue-producing transaction and (ii) collected from customers. Accordingly, such tax amounts are not included as a component of net sales or cost of sales.
Research and Development Expense
Research and Development Expense. We incur research and development costs during the process of researching and developing new products and enhancing our existing products, technologies, and manufacturing processes. Our research and development costs consist primarily of employee compensation, materials, outside services, and depreciation. We expense these costs as incurred until the resulting product has been completed, tested, and made ready for commercial manufacturing.
Production Start-Up
Production Start-Up. Production start-up expense consists primarily of employee compensation and other costs associated with operating a production line before it is qualified for full production, including the cost of raw materials for solar modules run through the production line during the qualification phase and applicable facility related costs. Costs related to equipment upgrades and implementation of manufacturing process improvements are also included in
production start-up expense as well as costs related to the selection of a new site, related legal and regulatory costs, and costs to maintain our plant replication program to the extent we cannot capitalize these expenditures.
Restructuring and Exit Activities
Restructuring and Exit Activities. We record costs associated with significant exit activities when management approves and commits to a plan of termination or over the future service period for certain employee termination benefits. Such exit activities represent programs that materially change our scope of business or the manner in which we conduct our business. Costs associated with these programs may include one-time employee termination benefits, contract termination costs, including costs related to leased facilities to be abandoned or subleased, and asset impairment charges.
Share-Based Compensation
Share-Based Compensation. We recognize share-based compensation expense for the estimated grant-date fair value of equity awards issued as compensation to employees over the requisite service period, which is generally four years. For awards with performance conditions, we recognize share-based compensation expense if it is probable that the performance conditions will be achieved. We account for forfeitures of share-based awards as such forfeitures occur. Accordingly, when an associate’s employment is terminated, all previously unvested awards granted to such associate are forfeited, which results in a benefit to share-based compensation expense in the period of such associate’s termination equal to the cumulative expense recorded through the termination date for the unvested awards. We recognize share-based compensation expense for awards with graded vesting schedules on a straight-line basis over the requisite service periods for each separately vesting portion of the award as if each award was in substance multiple awards.
Foreign Currency Translation
Foreign Currency Translation. The functional currencies of certain of our foreign subsidiaries are their local currencies. Accordingly, we apply period-end exchange rates to translate their assets and liabilities and daily transaction exchange rates to translate their revenues, expenses, gains, and losses into U.S. dollars. We include the associated translation adjustments as a separate component of “Accumulated other comprehensive loss” within stockholders’ equity. The functional currency of our subsidiaries in Canada, Chile, Malaysia, Singapore, and Vietnam is the U.S. dollar; therefore, we do not translate their financial statements. Gains and losses arising from the remeasurement of monetary assets and liabilities denominated in currencies other than a subsidiary’s functional currency are included in “Foreign currency income (loss), net” in the period in which they occur.
Income Taxes
Income Taxes. We use the asset and liability method to account for income taxes whereby we calculate deferred tax assets or liabilities using the enacted tax rates and tax law applicable to when any temporary differences are expected to reverse. We establish valuation allowances, when necessary, to reduce deferred tax assets to the extent it is more likely than not that such deferred tax assets will not be realized. We do not provide deferred taxes related to the U.S. GAAP basis in excess of the outside tax basis in the investment in our foreign subsidiaries to the extent such amounts relate to indefinitely reinvested earnings and profits of such foreign subsidiaries.

Income tax expense includes (i) deferred tax expense, which generally represents the net change in deferred tax assets or liabilities during the year plus any change in valuation allowances, and (ii) current tax expense, which represents the amount of tax currently payable to or receivable from taxing authorities. We only recognize tax benefits related to uncertain tax positions that are more likely than not of being sustained upon examination. For those positions that satisfy such recognition criteria, the amount of tax benefit that we recognize is the largest amount of tax benefit that is more likely than not of being sustained on ultimate settlement of the uncertain tax position.
Per Share Data
Per Share Data. Basic net income or loss per share is computed by dividing net income or loss by the weighted-average number of common shares outstanding for the period. Diluted net income per share is computed giving effect to all potentially dilutive common shares, including restricted and performance stock units and stock purchase plan shares, unless there is a net loss for the period. In computing diluted net income per share, we utilize the treasury stock method.
Accumulated Other Comprehensive Income or Loss
Accumulated Other Comprehensive Income or Loss. Our accumulated other comprehensive income or loss includes foreign currency translation adjustments, unrealized gains and losses on available-for-sale debt securities, and unrealized gains and losses on derivative instruments designated and qualifying as cash flow hedges. We record these components of accumulated other comprehensive income or loss net of tax and release such tax effects when the underlying components affect earnings.
v3.19.3.a.u2
Note 2. Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Schedule of Property, Plant and Equipment, Useful Lives [Table Text Block]
 
 
 
Useful Lives
in Years
Buildings and building improvements
 
25 – 40
Manufacturing machinery and equipment
 
5 – 15
Furniture, fixtures, computer hardware, and computer software
 
3 – 7
Leasehold improvements
 
up to 15

v3.19.3.a.u2
Note 5. Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The changes in the carrying amount of goodwill, by reporting unit, for the years ended December 31, 2019 and 2018 were as follows (in thousands):
 
 
Balance at December 31, 2018
 
Acquisitions (Impairments)
 
Balance at December 31, 2019
Modules
 
$
407,827

 
$

 
$
407,827

Accumulated impairment losses
 
(393,365
)
 

 
(393,365
)
Total
 
$
14,462

 
$

 
$
14,462


 
 
Balance at December 31, 2017
 
Acquisitions (Impairments)
 
Balance at December 31, 2018
Modules
 
$
407,827

 
$

 
$
407,827

Accumulated impairment losses
 
(393,365
)
 

 
(393,365
)
Total
 
$
14,462

 
$

 
$
14,462


Schedule of Intangible Assets, Net
The following tables summarize our intangible assets at December 31, 2019 and 2018 (in thousands):
 
 
December 31, 2019
 
 
Gross Amount
 
Accumulated Amortization
 
Net Amount
Developed technology
 
$
97,964

 
$
(42,344
)
 
$
55,620

Power purchase agreements
 
6,486

 
(972
)
 
5,514

Patents
 
7,780

 
(4,371
)
 
3,409

Total
 
$
112,230

 
$
(47,687
)
 
$
64,543


 
 
December 31, 2018
 
 
Gross Amount
 
Accumulated Amortization
 
Net Amount
Developed technology
 
$
97,714

 
$
(33,093
)
 
$
64,621

Power purchase agreements
 
6,486

 
(648
)
 
5,838

Patents
 
7,408

 
(3,705
)
 
3,703

Total
 
$
111,608

 
$
(37,446
)
 
$
74,162


Schedule of Intangible Asset Future Amortization Expense
Estimated future amortization expense for our definite-lived intangible assets was as follows at December 31, 2019 (in thousands):
 
 
Amortization Expense
2020
 
$
10,498

2021
 
10,496

2022
 
10,471

2023
 
10,187

2024
 
10,057

Thereafter
 
12,834

Total amortization expense
 
$
64,543


v3.19.3.a.u2
Note 6. Cash, Cash Equivalents, and Marketable Securities (Tables)
12 Months Ended
Dec. 31, 2019
Cash, Cash Equivalents, and Short-term Investments [Abstract]  
Schedule of Cash, Cash Equivalents, and Marketable Securities
Cash, cash equivalents, and marketable securities consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Cash and cash equivalents:
 
 
 
 
Cash
 
$
1,345,419

 
$
1,202,774

Money market funds
 
7,322

 
200,788

Total cash and cash equivalents
 
1,352,741

 
1,403,562

Marketable securities:
 
 
 
 
Foreign debt
 
387,820

 
318,646

Foreign government obligations
 
22,011

 
98,621

U.S. debt
 
66,134

 
44,468

Time deposits
 
335,541

 
681,969

Total marketable securities
 
811,506

 
1,143,704

Total cash, cash equivalents, and marketable securities
 
$
2,164,247

 
$
2,547,266



Reconciliation of Cash, Cash Equivalents, and Restricted Cash
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within our consolidated balance sheets as of December 31, 2019 and 2018 to the total of such amounts as presented in the consolidated statements of cash flows (in thousands):
 
 
Balance Sheet Line Item
 
2019
 
2018
Cash and cash equivalents
 
Cash and cash equivalents
 
$
1,352,741

 
$
1,403,562

Restricted cash  current (1)
 
Prepaid expenses and other current assets
 
13,697

 
19,671

Restricted cash  noncurrent (1)
 
Restricted cash and investments
 
80,072

 
139,390

Total cash, cash equivalents, and restricted cash
 
 
 
$
1,446,510

 
$
1,562,623

——————————
(1)
See Note 7. “Restricted Cash and Investments” to our consolidated financial statements for discussion of our “Restricted cash” arrangements.

Available-for-sale Marketable Securities
The following tables summarize the unrealized gains and losses related to our available-for-sale marketable securities, by major security type, as of December 31, 2019 and 2018 (in thousands):
 
 
As of December 31, 2019
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign debt
 
$
387,775

 
$
551

 
$
506

 
$
387,820

Foreign government obligations
 
21,991

 
20

 

 
22,011

U.S. debt
 
65,970

 
176

 
12

 
66,134

Time deposits
 
335,541

 

 

 
335,541

Total
 
$
811,277

 
$
747

 
$
518

 
$
811,506

 
 
As of December 31, 2018
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign debt
 
$
320,056

 
$
468

 
$
1,878

 
$
318,646

Foreign government obligations
 
99,189

 

 
568

 
98,621

U.S. debt
 
44,625

 
53

 
210

 
44,468

Time deposits
 
681,969

 

 

 
681,969

Total
 
$
1,145,839

 
$
521

 
$
2,656

 
$
1,143,704


Available-for-sale Marketable Securities Continuous Unrealized Loss Position
The following tables show unrealized losses and fair values for those marketable securities that were in an unrealized loss position as of December 31, 2019 and 2018, aggregated by major security type and the length of time the marketable securities have been in a continuous loss position (in thousands):
 
 
As of December 31, 2019
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign debt
 
$
178,174

 
$
506

 
$

 
$

 
$
178,174

 
$
506

U.S. debt
 
30,566

 
12

 

 

 
30,566

 
12

Total
 
$
208,740

 
$
518

 
$

 
$

 
$
208,740

 
$
518

 
 
As of December 31, 2018
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign debt
 
$
150,842

 
$
802

 
$
94,446

 
$
1,076

 
$
245,288

 
$
1,878

Foreign government obligations
 

 

 
98,621

 
568

 
98,621

 
568

U.S. debt
 
$
15,356

 
$
32

 
$
14,085

 
$
178

 
$
29,441

 
$
210

Total
 
$
166,198

 
$
834

 
$
207,152

 
$
1,822

 
$
373,350

 
$
2,656


Available-for-sale Marketable Securities by Maturity
The contractual maturities of our marketable securities as of December 31, 2019 were as follows (in thousands):
 
 
Fair
Value
One year or less
 
$
488,118

One year to two years
 
164,410

Two years to three years
 
158,978

Total
 
$
811,506


v3.19.3.a.u2
Note 7. Restricted Cash and Investments (Tables)
12 Months Ended
Dec. 31, 2019
Restricted Cash and Investments [Abstract]  
Restricted Cash And Investments
Restricted cash and investments consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Restricted cash
 
$
80,072

 
$
139,390

Restricted investments
 
223,785

 
179,000

Total restricted cash and investments (1)
 
$
303,857

 
$
318,390


——————————
(1)
There was an additional $13.7 million and $19.7 million of restricted cash included within “Prepaid expenses and other current assets” at December 31, 2019 and 2018, respectively.
Restricted Available For Sale Securities
The following tables summarize the unrealized gains and losses related to our restricted investments, by major security type, as of December 31, 2019 and 2018 (in thousands):
 
 
As of December 31, 2019
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign government obligations
 
$
129,499

 
$

 
$
3,433

 
$
126,066

U.S. government obligations
 
99,700

 

 
1,981

 
97,719

Total
 
$
229,199

 
$

 
$
5,414

 
$
223,785

 
 
As of December 31, 2018
 
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Foreign government obligations
 
$
73,798

 
$
14,234

 
$
235

 
$
87,797

U.S. government obligations
 
97,223

 
416

 
6,436

 
91,203

Total
 
$
171,021

 
$
14,650

 
$
6,671

 
$
179,000


Schedule of Unrealized Loss on Restricted Investments
The following tables show unrealized losses and fair values for those restricted investments that were in an unrealized loss position as of December 31, 2019 and 2018, aggregated by major security type and the length of time the restricted investments have been in a continuous loss position (in thousands):
 
 
As of December 31, 2019
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign government obligations
 
$
126,066

 
$
3,433

 
$

 
$

 
$
126,066

 
$
3,433

U.S. government obligations
 
97,719

 
1,981

 

 

 
97,719

 
1,981

Total
 
$
223,785

 
$
5,414

 
$

 
$

 
$
223,785

 
$
5,414

 
 
As of December 31, 2018
 
 
In Loss Position for
Less Than 12 Months
 
In Loss Position for
12 Months or Greater
 
Total
 
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
Foreign government obligations
 
$
41,335

 
$
235

 
$

 
$

 
$
41,335

 
$
235

U.S. government obligations
 

 

 
87,401

 
6,436

 
87,401

 
6,436

Total
 
$
41,335

 
$
235

 
$
87,401

 
$
6,436

 
$
128,736

 
$
6,671



v3.19.3.a.u2
Note 8. Consolidated Balance Sheet Details (Tables)
12 Months Ended
Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]  
Schedule of Accounts Receivable
Accounts receivable trade, net

Accounts receivable trade, net consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Accounts receivable trade, gross
 
$
476,425

 
$
129,644

Allowance for doubtful accounts
 
(1,386
)
 
(1,362
)
Accounts receivable trade, net
 
$
475,039

 
$
128,282


At December 31, 2019 and 2018, $44.9 million and $8.5 million, respectively, of our accounts receivable trade, net were secured by letters of credit, bank guarantees, surety bonds, or other forms of financial security issued by creditworthy financial institutions.

Accounts receivable, unbilled and retainage

Accounts receivable, unbilled and retainage consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Accounts receivable, unbilled
 
$
162,057

 
$
441,666

Retainage
 
21,416

 
16,500

Accounts receivable, unbilled and retainage
 
$
183,473

 
$
458,166



Schedule of Inventory, Current and Noncurrent
Inventories consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Raw materials
 
$
248,756

 
$
224,329

Work in process
 
59,924

 
41,294

Finished goods
 
295,479

 
252,372

Inventories
 
$
604,159

 
$
517,995

Inventories – current
 
$
443,513

 
$
387,912

Inventories – noncurrent
 
$
160,646

 
$
130,083



Schedule of Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Prepaid expenses
 
$
137,927

 
$
90,981

Prepaid income taxes
 
47,811

 
59,319

Indirect tax receivables
 
29,908

 
26,327

Restricted cash
 
13,697

 
19,671

Notes receivable (1)
 
23,873

 
5,196

Derivative instruments (2)
 
1,199

 
2,364

Other current assets
 
22,040

 
39,203

Prepaid expenses and other current assets
 
$
276,455

 
$
243,061


——————————
(1)
In November 2014 and February 2016, we entered into a term loan agreement and a convertible loan agreement, respectively, with Clean Energy Collective, LLC (“CEC”). Our term loan bears interest at 16% per annum, and our convertible loan bears interest at 10% per annum. In November 2018, we amended the terms of the loan agreements to (i) extend their maturity to June 2020, (ii) waive the conversion features on our convertible loan, and (iii) increase the frequency of interest payments, subject to certain conditions. In January 2019, CEC finalized certain restructuring arrangements, which resulted in a dilution of our ownership interest in CEC and the loss of our representation on the company’s board of managers. As a result of such restructuring, CEC no longer qualified to be accounted for under the equity method. As of December 31, 2019, the aggregate balance outstanding on the loans was $23.9 million and was presented within “Prepaid expenses and other current assets.” As of December 31, 2018, the aggregate balance outstanding on the loans was $22.8 million and was presented within “Notes receivable, affiliate.”

(2)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.
Schedule of Property, Plant and Equipment, Net
Property, plant and equipment, net consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Land
 
$
14,241

 
$
14,382

Buildings and improvements
 
664,266

 
567,605

Machinery and equipment
 
2,436,997

 
1,826,434

Office equipment and furniture
 
159,848

 
178,011

Leasehold improvements
 
48,772

 
49,055

Construction in progress
 
243,107

 
405,581

Property, plant and equipment, gross
 
3,567,231

 
3,041,068

Accumulated depreciation
 
(1,386,082
)
 
(1,284,857
)
Property, plant and equipment, net
 
$
2,181,149

 
$
1,756,211


Schedule of PV Solar Power Systems, Net
PV solar power systems, net consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
PV solar power systems, gross
 
$
530,004

 
$
343,061

Accumulated depreciation
 
(53,027
)
 
(34,421
)
PV solar power systems, net
 
$
476,977

 
$
308,640


Schedule of Project Assets
Project assets consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Project assets – development costs, including project acquisition and land costs
 
$
254,466

 
$
298,070

Project assets – construction costs
 
82,654

 
200,359

Project assets
 
337,120

 
498,429

Project assets  current
 
$
3,524

 
$
37,930

Project assets  noncurrent
 
$
333,596

 
$
460,499



Schedule of Capitalized Interest
The components of interest expense and capitalized interest were as follows during the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
Interest cost incurred
 
$
(29,656
)
 
$
(31,752
)
 
$
(27,457
)
Interest cost capitalized – project assets
 
2,590

 
5,831

 
1,692

Interest expense, net
 
$
(27,066
)
 
$
(25,921
)
 
$
(25,765
)

Schedule of Other Assets, Noncurrent
Other assets consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Operating lease assets (1)
 
$
145,711

 
$

Indirect tax receivables
 
9,446

 
22,487

Notes receivable (2)
 
8,194

 
8,017

Income taxes receivable
 
4,106

 
4,444

Equity method investments (3)
 
2,812

 
3,186

Derivative instruments (4)
 
139

 

Deferred rent
 

 
27,249

Other
 
79,446

 
33,495

Other assets 
 
$
249,854

 
$
98,878

——————————
(1)
See Note 10. "Leases" to our consolidated financial statements for discussion of our lease arrangements.

(2)
In April 2009, we entered into a credit facility agreement with a solar power project entity of one of our customers for an available amount of €17.5 million to provide financing for a PV solar power system. The credit facility bears interest at 8.0% per annum, payable quarterly, with the full amount due in December 2026. As of December 31, 2019 and 2018, the balance outstanding on the credit facility was €7.0 million ($7.8 million and $8.0 million, respectively).

(3)
In June 2015, 8point3 Energy Partners LP (the “Partnership”), a limited partnership formed by First Solar and SunPower Corporation (collectively the “Sponsors”), completed its initial public offering (the “IPO”). As part of the IPO, the Sponsors contributed interests in various projects to OpCo in exchange for voting and economic interests in the entity, and the Partnership acquired an economic interest in OpCo using proceeds from the IPO.

In June 2018, we completed the sale of our interests in the Partnership and its subsidiaries to CD Clean Energy and Infrastructure V JV, LLC, an equity fund managed by Capital Dynamics, Inc. and certain other co-investors and other parties, and received net proceeds of $240.0 million after the payment of fees, expenses, and other amounts. We accounted for our interests in OpCo, a subsidiary of the Partnership, under the equity method of accounting as we were able to exercise significant influence over the Partnership due to our representation on the board of directors of its general partner and certain of our associates serving as officers of its general partner. During the year ended December 31, 2018, we recognized equity in earnings, net of tax, of $39.7 million from our investment in OpCo, including a gain of $40.3 million, net of tax, for the sale of our interests in the Partnership and its subsidiaries. During the year ended December 31, 2018, we received distributions from OpCo of $12.4 million.

In connection with the IPO, we also entered into an agreement with a subsidiary of the Partnership to lease back one of our originally contributed projects, Maryland Solar, until December 31, 2019. Under the terms of the agreement, we made fixed rent payments to the Partnership’s subsidiary and were entitled to all of the energy generated by the project. Due to certain continuing involvement with the project, we accounted for the leaseback agreement as a financing transaction until the sale of our interests in the Partnership and its subsidiaries in June 2018. Following the sale of such interests, the Maryland Solar project qualified for sale-leaseback accounting, and we recognized net revenue of $32.0 million from the sale of the project.
(4)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.
Schedule of Accrued Expenses
Accrued expenses consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Accrued project costs
 
$
91,971

 
$
147,162

Accrued compensation and benefits
 
65,170

 
41,937

Accrued property, plant and equipment
 
42,834

 
89,905

Accrued inventory
 
39,366

 
53,075

Product warranty liability (1)
 
20,291

 
27,657

Other
 
91,628

 
81,844

Accrued expenses
 
$
351,260

 
$
441,580

——————————
(1)
See Note 14. “Commitments and Contingencies” to our consolidated financial statements for discussion of our “Product warranty liability.”
Schedule of Other Current Liabilities
Other current liabilities consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Operating lease liabilities (1)
 
$
11,102

 
$

Derivative instruments (2)
 
2,582

 
7,294

Contingent consideration (3)
 
2,395

 
665

Other
 
12,051

 
6,421

Other current liabilities
 
$
28,130

 
$
14,380

——————————
(1)
See Note 10. "Leases" to our consolidated financial statements for discussion of our lease arrangements.

(2)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.

(3)
See Note 14. “Commitments and Contingencies” to our consolidated financial statements for discussion of our “Contingent consideration” arrangements.

Schedule of Other Liabilities
Other liabilities consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
2019
 
2018
Operating lease liabilities (1)
 
$
112,515

 
$

Product warranty liability (2)
 
109,506

 
193,035

Other taxes payable
 
90,201

 
83,058

Deferred revenue
 
71,438

 
48,014

Transition tax liability (3)
 
70,047

 
77,016

Derivative instruments (4)
 
7,439

 
9,205

Contingent consideration (2)
 
4,500

 
2,250

Other
 
43,120

 
55,261

Other liabilities
 
$
508,766

 
$
467,839

——————————
(1)
See Note 10. "Leases" to our consolidated financial statements for discussion of our lease arrangements.

(2)
See Note 14. “Commitments and Contingencies” to our consolidated financial statements for discussion of our “Product warranty liability” and “Contingent consideration” arrangements.

(3)
See Note 18. “Income Taxes” to our consolidated financial statements for discussion of the one-time transition tax on accumulated earnings of foreign subsidiaries as a result of the Tax Act.

(4)
See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for discussion of our derivative instruments.
v3.19.3.a.u2
Note 9. Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
The following tables present the fair values of derivative instruments included in our consolidated balance sheets as of December 31, 2019 and 2018 (in thousands):
 
 
December 31, 2019
 
 
Prepaid Expenses and Other Current Assets
 
Other Assets
 
Other Current Liabilities
 
Other Liabilities
Derivatives designated as hedging instruments:
 
 
 
 
 
 
 
 
Foreign exchange forward contracts
 
$
226

 
$
139

 
$
369

 
$
230

Total derivatives designated as hedging instruments
 
$
226

 
$
139

 
$
369

 
$
230

 
 
 
 
 
 
 
 
 
Derivatives not designated as hedging instruments:
 
 
 
 

 
 

 
 

Foreign exchange forward contracts
 
$
973

 
$

 
$
1,807

 
$

Interest rate swap contracts
 

 

 
406

 
7,209

Total derivatives not designated as hedging instruments
 
$
973

 
$

 
$
2,213

 
$
7,209

Total derivative instruments
 
$
1,199

 
$
139

 
$
2,582

 
$
7,439

 
 
December 31, 2018
 
 
Prepaid Expenses and Other Current Assets
 
Other Current Liabilities
 
Other Liabilities
Derivatives designated as hedging instruments:
 
 
 
 
 
 
Foreign exchange forward contracts
 
$
158

 
$

 
$

Total derivatives designated as hedging instruments
 
$
158

 
$

 
$

 
 
 
 
 
 
 
Derivatives not designated as hedging instruments:
 
 
 
 

 
 

Foreign exchange forward contracts
 
$
2,206

 
$
7,096

 
$

Interest rate swap contracts
 

 
198

 
9,205

Total derivatives not designated as hedging instruments
 
$
2,206

 
$
7,294

 
$
9,205

Total derivative instruments
 
$
2,364

 
$
7,294

 
$
9,205


Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
The following table presents the pretax amounts related to derivative instruments designated as cash flow hedges affecting accumulated other comprehensive income (loss) and our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
Foreign Exchange Forward Contracts
Balance as of December 31, 2016
 
$
2,556

Amounts recognized in other comprehensive income (loss)
 
(4,468
)
Amounts reclassified to earnings impacting:
 
 
Other income, net
 
189

Balance as of December 31, 2017
 
(1,723
)
Amounts recognized in other comprehensive income (loss)
 
(3,760
)
Amounts reclassified to earnings impacting:
 
 
Net sales
 
1,698

Cost of sales
 
212

Foreign currency income (loss), net
 
5,448

Other income, net
 
(546
)
Balance as of December 31, 2018
 
1,329

Amounts recognized in other comprehensive income (loss)
 
(1,086
)
Amounts reclassified to earnings impacting:
 
 
Net sales
 
(124
)
Cost of sales
 
(1,081
)
Balance as of December 31, 2019
 
$
(962
)

Derivative Instruments, Gain (Loss) [Table Text Block]
The following table presents gains and losses related to derivative instruments not designated as hedges affecting our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
 
 
Amount of Gain (Loss) Recognized in Income
 
 
Income Statement Line Item
 
2019
 
2018
 
2017
Interest rate swap contracts
 
Cost of sales
 
$
(1,656
)
 
$

 
$

Foreign exchange forward contracts
 
Foreign currency income (loss), net
 
3,716

 
12,113

 
(33,882
)
Interest rate swap contracts
 
Interest expense, net
 
(8,532
)
 
(8,643
)
 
(5,932
)

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
As of December 31, 2019 and 2018, the notional values associated with our foreign exchange forward contracts qualifying as cash flow hedges were as follows (notional amounts and U.S. dollar equivalents in millions):
 
 
December 31, 2019
Currency
 
Notional Amount
 
USD Equivalent
U.S. dollar (1)
 
$69.9
 
$69.9
 
 
December 31, 2018
Currency
 
Notional Amount
 
USD Equivalent
Australian dollar
 
AUD 8.8
 
$6.2

——————————
(1)
These derivative instruments represent hedges of outstanding payables denominated in U.S. dollars at certain of our foreign subsidiaries whose functional currencies are other than the U.S. dollar.
Schedule of Notional Value of Foreign Exchange Forward Derivatives [Table Text Block]
As of December 31, 2019 and 2018, the notional values of our foreign exchange forward contracts that do not qualify for hedge accounting were as follows (notional amounts and U.S. dollar equivalents in millions):
 
 
December 31, 2019
Transaction
 
Currency
 
Notional Amount
 
USD Equivalent
Purchase
 
Australian dollar
 
AUD 14.9
 
$10.4
Sell
 
Australian dollar
 
AUD 11.1
 
$7.8
Purchase
 
Brazilian real
 
BRL 13.2
 
$3.3
Sell
 
Brazilian real
 
BRL 4.3
 
$1.1
Purchase
 
Canadian dollar
 
CAD 4.5
 
$3.4
Sell
 
Canadian dollar
 
CAD 1.6
 
$1.2
Purchase
 
Chilean peso
 
CLP 1,493.1
 
$2.0
Sell
 
Chilean peso
 
CLP 3,866.1
 
$5.1
Purchase
 
Euro
 
€86.1
 
$96.5
Sell
 
Euro
 
€116.3
 
$130.3
Sell
 
Indian rupee
 
INR 1,283.8
 
$18.0
Purchase
 
Japanese yen
 
¥3,625.5
 
$33.3
Sell
 
Japanese yen
 
¥23,089.5
 
$212.2
Purchase
 
Malaysian ringgit
 
MYR 88.6
 
$21.6
Sell
 
Malaysian ringgit
 
MYR 41.3
 
$10.1
Sell
 
Mexican peso
 
MXN 34.6
 
$1.8
Purchase
 
Singapore dollar
 
SGD 2.9
 
$2.2
 
 
December 31, 2018
Transaction
 
Currency
 
Notional Amount
 
USD Equivalent
Purchase
 
Australian dollar
 
AUD 2.1
 
$1.5
Sell
 
Australian dollar
 
AUD 52.9
 
$37.3
Purchase
 
Brazilian real
 
BRL 8.5
 
$2.2
Sell
 
Canadian dollar
 
CAD 2.9
 
$2.1
Sell
 
Chilean peso
 
CLP 3,506.6
 
$5.1
Purchase
 
Euro
 
€115.2
 
$131.9
Sell
 
Euro
 
€191.8
 
$219.7
Sell
 
Indian rupee
 
INR 789.2
 
$11.3
Purchase
 
Japanese yen
 
¥931.6
 
$8.4
Sell
 
Japanese yen
 
¥23,858.8
 
$216.2
Purchase
 
Malaysian ringgit
 
MYR 34.3
 
$8.3
Sell
 
Malaysian ringgit
 
MYR 53.8
 
$12.9
Sell
 
Mexican peso
 
MXN 37.3
 
$1.9
Purchase
 
Singapore dollar
 
SGD 3.8
 
$2.8


v3.19.3.a.u2
Note 10. Leases (Tables)
12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Schedule of operating lease cost and related information
The following table presents certain quantitative information related to our lease arrangements for the year ended and as of December 31, 2019 (in thousands):
 
 
2019
Operating lease cost
 
$
21,833

Variable lease cost
 
3,518

Short-term lease cost
 
7,511

Total lease cost
 
$
32,862

 
 
 
Payments of amounts included in the measurement of operating lease liabilities
 
$
21,678

Lease assets obtained in exchange for operating lease liabilities
 
$
179,804

 
 
 
 
 
December 31, 2019
Operating lease assets
 
$
145,711

Operating lease liabilities  current
 
11,102

Operating lease liabilities  noncurrent
 
112,515

 
 
 
Weighted-average remaining lease term
 
15 years

Weighted-average discount rate
 
4.3
%

Operating lease liability maturity
As of December 31, 2019, the future payments associated with our lease liabilities were as follows (in thousands):
 
 
Total Lease Liabilities
2020
 
$
15,153

2021
 
14,868

2022
 
13,903

2023
 
13,491

2024
 
13,217

Thereafter
 
92,281

Total future payments
 
162,913

Less: interest
 
(39,296
)
Total lease liabilities
 
$
123,617


v3.19.3.a.u2
Note 11. Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Fair value assets and liabilities measured on recurring basis
At December 31, 2019 and 2018, the fair value measurements of our assets and liabilities measured on a recurring basis were as follows (in thousands):
 
 
 
 
Fair Value Measurements at Reporting
Date Using
 
 
December 31, 2019
 
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Assets:
 
 
 
 
 
 
 
 
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds
 
$
7,322

 
$
7,322

 
$

 
$

Marketable securities:
 
 
 
 
 
 
 
 
Foreign debt
 
387,820

 

 
387,820

 

Foreign government obligations
 
22,011

 

 
22,011

 

U.S. debt
 
66,134

 

 
66,134

 

Time deposits
 
335,541

 
335,541

 

 

Restricted investments
 
223,785

 

 
223,785

 

Derivative assets
 
1,338

 

 
1,338

 

Total assets
 
$
1,043,951

 
$
342,863

 
$
701,088

 
$

Liabilities:
 
 
 
 
 
 
 
 
Derivative liabilities
 
$
10,021

 
$

 
$
10,021

 
$

 
 
 
 
Fair Value Measurements at Reporting
Date Using
 
 
December 31, 2018
 
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Assets:
 
 
 
 
 
 
 
 
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds
 
$
200,788

 
$
200,788

 
$

 
$

Marketable securities:
 
 
 
 
 
 
 
 
Foreign debt
 
318,646

 

 
318,646

 

Foreign government obligations
 
98,621

 

 
98,621

 

U.S. debt
 
44,468

 

 
44,468

 

Time deposits
 
681,969

 
681,969

 

 

Restricted investments
 
179,000

 

 
179,000

 

Derivative assets
 
2,364

 

 
2,364

 

Total assets
 
$
1,525,856

 
$
882,757

 
$
643,099

 
$

Liabilities:
 
 
 
 
 
 
 
 
Derivative liabilities
 
$
16,499

 
$

 
$
16,499

 
$


Fair value of financial instruments not measured on a recurring basis
At December 31, 2019 and 2018, the carrying values and fair values of our financial instruments not measured at fair value were as follows (in thousands):
 
 
December 31, 2019
 
December 31, 2018
 
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
Assets:
 
 
 
 
 
 
 
 
Notes receivable – current (1)
 
$
23,873

 
$
24,929

 
$
5,196

 
$
5,196

Notes receivable – noncurrent
 
8,194

 
10,276

 
8,017

 
8,010

Notes receivable, affiliates – noncurrent (1)
 

 

 
22,832

 
24,295

Liabilities:
 
 
 
 
 
 
 
 
Long-term debt, including current maturities (2)
 
$
482,892

 
$
504,213

 
$
479,157

 
$
470,124


——————————
(1)
In January 2019, CEC no longer qualified to be accounted for under the equity method, and our loans to the company were no longer classified as notes receivable from an affiliate. As of December 31, 2019, the aggregate balance outstanding on the loans was presented within “Prepaid expenses and other current assets.” As of December 31, 2018, the aggregate balance outstanding on the loans was presented within “Notes receivable, affiliate.”

(2)
Excludes unamortized discounts and issuance costs.
v3.19.3.a.u2
Note 13. Debt (Tables)
12 Months Ended
Dec. 31, 2019
Debt Instruments [Abstract]  
Schedule of Long-term Debt Instruments
Our long-term debt consisted of the following at December 31, 2019 and 2018 (in thousands):
 
 
 
 
Balance (USD)
Loan Agreement
 
Currency
 
2019
 
2018
Revolving Credit Facility
 
USD
 
$

 
$

Luz del Norte Credit Facilities
 
USD
 
188,017

 
188,849

Ishikawa Credit Agreement
 
JPY
 
215,879

 
157,834

Japan Credit Facility
 
JPY
 
1,678

 

Tochigi Credit Facility
 
JPY
 
37,304

 
25,468

Anamizu Credit Facility
 
JPY
 
12,138

 

Anantapur Credit Facility
 
INR
 
15,123

 
16,101

Tungabhadra Credit Facility
 
INR
 
12,753

 
13,934

Beryl Credit Facility
 
AUD
 

 
76,971

Long-term debt principal
 
 
 
482,892

 
479,157

Less: unamortized discounts and issuance costs
 
 
 
(11,195
)
 
(12,366
)
Total long-term debt
 
 
 
471,697

 
466,791

Less: current portion
 
 
 
(17,510
)
 
(5,570
)
Noncurrent portion
 
 
 
$
454,187

 
$
461,221


Schedule of Borrowing Rate on Debt Our long-term debt borrowing rates as of December 31, 2019 were as follows:
Loan Agreement
 
December 31, 2019
Revolving Credit Facility
 
3.76%
Luz del Norte Credit Facilities (1)
 
Fixed rate loans at bank rate plus 3.50%
 
Variable rate loans at 91-Day U.S. Treasury Bill Yield or LIBOR plus 3.50%
Ishikawa Credit Agreement
 
Senior loan facility at 6-month TIBOR plus 0.75% (2)
 
Consumption tax facility at 3-month TIBOR plus 0.5%
Japan Credit Facility
 
1-month TIBOR plus 0.55%
Tochigi Credit Facility
 
3-month TIBOR plus 1.0%
Anamizu Credit Facility
 
Term loan facility at 6-month TIBOR plus 0.70% (2)
 
Consumption tax facility at 3-month TIBOR plus 0.5%
 
Debt service reserve facility at 6-month TIBOR plus 1.20%
Anantapur Credit Facility
 
INR overnight indexed swap rate plus 1.5%
Tungabhadra Credit Facility
 
INR overnight indexed swap rate plus 1.5%
——————————
(1)
Outstanding balance comprised of $155.8 million of fixed rate loans and $32.2 million of variable rate loans as of December 31, 2019.

(2)
We have entered into interest rate swap contracts to hedge portions of these variable rates. See Note 9. “Derivative Financial Instruments” to our consolidated financial statements for additional information.
Schedule of Maturities of Long-term Debt
At December 31, 2019, the future principal payments on our long-term debt were due as follows (in thousands):
 
 
Total Debt
2020
 
$
17,684

2021
 
79,306

2022
 
19,265

2023
 
18,284

2024
 
19,212

Thereafter
 
329,141

Total long-term debt future principal payments
 
$
482,892


v3.19.3.a.u2
Note 14. Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability
Product warranty activities during the years ended December 31, 2019, 2018, and 2017 were as follows (in thousands):
 
 
2019
 
2018
 
2017
Product warranty liability, beginning of period
 
$
220,692

 
$
224,274

 
$
252,408

Accruals for new warranties issued
 
17,327

 
14,132

 
23,313

Settlements
 
(22,540
)
 
(11,851
)
 
(11,329
)
Changes in estimate of product warranty liability
 
(85,682
)
 
(5,863
)
 
(40,118
)
Product warranty liability, end of period
 
$
129,797

 
$
220,692

 
$
224,274

Current portion of warranty liability
 
$
20,291

 
$
27,657

 
$
28,767

Noncurrent portion of warranty liability
 
$
109,506

 
$
193,035

 
$
195,507



v3.19.3.a.u2
Note 15. Revenue from Contracts with Customers (Tables)
12 Months Ended
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]  
Disaggregation Revenue, by Type of Revenue [Table Text Block]
The following table represents a disaggregation of revenue from contracts with customers for the years ended December 31, 2019, 2018, and 2017 along with the reportable segment for each category (in thousands):
Category
 
Segment
 
2019
 
2018
 
2017
Solar modules
 
Modules
 
$
1,460,116

 
$
502,001

 
$
806,398

Solar power systems
 
Systems
 
1,148,856

 
1,244,175

 
1,927,122

EPC services
 
Systems
 
291,901

 
347,560

 
45,525

O&M services
 
Systems
 
107,705

 
103,186

 
101,024

Energy generation (1)
 
Systems
 
54,539

 
47,122

 
58,019

Module plus
 
Systems
 

 

 
3,236

Net sales
 
 
 
$
3,063,117

 
$
2,244,044

 
$
2,941,324

——————————
(1)
During the year ended December 31, 2017, the majority of energy generated and sold by our PV solar power systems was accounted for under ASC 840 consistent with the classification of the associated PPAs.
Changes in Estimates Systems Business [Table Text Block]
The following table outlines the impact on revenue of net changes in estimated transaction prices and input costs for systems related sales contracts (both increases and decreases) for the years ended December 31, 2019, 2018, and 2017 as well as the number of projects that comprise such changes. For purposes of the table, we only include projects with changes in estimates that have a net impact on revenue of at least $1.0 million during the periods presented with the exception of the sales and use tax matter described below, for which the aggregate change in estimate has been presented. Also included in the table is the net change in estimate as a percentage of the aggregate revenue for such projects.
 
 
2019
 
2018
 
2017
Number of projects (1)
 
3

 
24

 
5

 
 
 
 
 
 
 
(Decrease) increase in revenue from net changes in transaction prices (in thousands) (1)
 
$
(3,642
)
 
$
63,361

 
$
3,579

(Decrease) increase in revenue from net changes in input cost estimates (in thousands)
 
(23,103
)
 
1,548

 
5,047

Net (decrease) increase in revenue from net changes in estimates (in thousands)
 
$
(26,745
)
 
$
64,909

 
$
8,626

 
 
 
 
 
 
 
Net change in estimate as a percentage of aggregate revenue
 
(4.6
)%
 
0.6
%
 
0.6
%

——————————
(1)
During the year ended December 31, 2018, we settled a tax examination with the state of California regarding several matters, including certain sales and use tax payments due under lump sum EPC contracts. Accordingly, we revised our estimates of sales and use taxes due for projects in the state of California, which affected the estimated transaction prices for such contracts, and recorded an increase to revenue of $54.6 million.
Changes in Contract Assets and Liabilities [Table Text Block]
The following table reflects the changes in our contract assets, which we classify as “Accounts receivable, unbilled” or “Retainage,” and our contract liabilities, which we classify as “Deferred revenue,” for the year ended December 31, 2019 (in thousands):
 
 
2019
 
2018
 
Change
Accounts receivable, unbilled
 
$
162,057

 
$
441,666

 
 
 
 
Retainage
 
21,416

 
16,500

 
 
 
 
Accounts receivable, unbilled and retainage
 
$
183,473

 
$
458,166

 
$
(274,693
)
 
(60
)%
 
 
 
 
 
 
 
 
 
Deferred revenue (1)
 
$
394,655

 
$
177,769

 
$
216,886

 
122
 %
——————————
(1)
Includes $71.4 million and $48.0 million of long-term deferred revenue classified as “Other liabilities” on our consolidated balance sheets as of December 31, 2019 and 2018, respectively.
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
The following table represents our remaining performance obligations as of December 31, 2019 for sales of solar power systems, including uncompleted sold projects and projects under sales contracts subject to conditions precedent. Such table excludes remaining performance obligations for any sales arrangements that had not fully satisfied the criteria to be considered a contract with a customer pursuant to the requirements of ASC 606. We expect to recognize $116.0 million of revenue for such contracts through the later of the substantial completion or the closing dates of the projects.
Project/Location
 
Project Size in MWAC
 
Revenue Category
 
Customer
 
Expected Year Revenue Recognition Will Be Completed
 
Percentage of Revenue Recognized
GA Solar 4, Georgia
 
200
 
Solar power systems
 
Origis Energy USA
 
2020
 
67%
Sun Streams, Arizona
 
150
 
Solar power systems
 
(1)
 
2020
 
94%
Sunshine Valley, Nevada
 
100
 
Solar power systems
 
(1)
 
2020
 
96%
Seabrook, South Carolina
 
72
 
Solar power systems
 
Dominion Energy
 
2020
 
94%
Japan (multiple locations)
 
52
 
Solar power systems
 
(2)
 
2020
 
—%
Windhub A, California
 
20
 
Solar power systems
 
(1)
 
2020
 
96%
Total
 
594
 
 
 
 
 
 
 
 

——————————
(1)
EDP Renewables and ConnectGen

(2)
Contracted but not specified

v3.19.3.a.u2
Note 17. Share-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
The following table presents share-based compensation expense recognized in our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
Cost of sales
 
$
7,541

 
$
6,422

 
$
6,809

Selling, general and administrative
 
23,741

 
21,646

 
22,165

Research and development
 
5,917

 
5,714

 
5,740

Production start-up
 
230

 
372

 
407

Total share-based compensation expense
 
$
37,429

 
$
34,154

 
$
35,121



Schedule of Nonvested Restricted Stock Units Activity
The following is a summary of our restricted stock unit activity, including performance stock unit activity, for the year ended December 31, 2019:
 
 
 
 
 
Number of Shares
 
Weighted-Average
Grant-Date
Fair Value
Unvested restricted stock units at December 31, 2018
 
2,474,287
 
$
45.63

Restricted stock units granted (1)
 
815,801
 
56.47

Restricted stock units vested
 
(779,320)
 
42.56

Restricted stock units forfeited
 
(99,332)
 
49.36

Unvested restricted stock units at December 31, 2019
 
2,411,436
 
$
50.13


——————————
(1)
Restricted stock units granted include the maximum amount of performance stock units available for issuance under our long-term incentive program for key executive officers and associates. The actual number of shares to be issued will depend on the relative attainment of the performance metrics described above.
v3.19.3.a.u2
Note 18. Income Taxes (Tables)
12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
The U.S. and non-U.S. components of our income or loss before income taxes for the years ended December 31, 2019, 2018, and 2017 were as follows (in thousands):
 
 
2019
 
2018
 
2017
U.S. loss
 
$
(239,547
)
 
$
(49,353
)
 
$
(22,868
)
Non-U.S. income
 
119,418

 
162,500

 
224,983

(Loss) income before taxes and equity in earnings
 
$
(120,129
)
 
$
113,147

 
$
202,115

Schedule of Components of Income Tax [Table Text Block]
The components of our income tax expense or benefit for the years ended December 31, 2019, 2018, and 2017 were as follows (in thousands):
 
 
2019
 
2018
 
2017
Current expense (benefit):
 
 
 
 
 
 
Federal
 
$
9,961

 
$
(44,267
)
 
$
116,956

State
 
3,890

 
(13,568
)
 
3,009

Foreign
 
41,080

 
8,788

 
11,099

Total current expense (benefit)
 
54,931

 
(49,047
)
 
131,064

Deferred (benefit) expense:
 
 

 
 

 
 

Federal
 
(55,647
)
 
31,530

 
226,570

State
 
(6,737
)
 
2,387

 
5,335

Foreign
 
1,973

 
18,571

 
9,027

Total deferred (benefit) expense
 
(60,411
)
 
52,488

 
240,932

Total income tax (benefit) expense
 
$
(5,480
)
 
$
3,441

 
$
371,996


Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Our income tax results differed from the amount computed by applying the relevant U.S. statutory federal corporate income tax rate to our income or loss before income taxes for the following reasons for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
 
 
Tax
 
Percent
 
Tax
 
Percent
 
Tax
 
Percent
Statutory income tax (benefit) expense
 
$
(25,227
)
 
21.0
 %
 
$
23,761

 
21.0
 %
 
$
70,740

 
35.0
 %
Provisional effect of Tax Act
 

 
 %
 

 
 %
 
408,090

 
201.9
 %
Changes in valuation allowance
 
(5,735
)
 
4.8
 %
 
19,064

 
16.8
 %
 
9,534

 
4.7
 %
Foreign tax rate differential
 
17,195

 
(14.3
)%
 
14,117

 
12.5
 %
 
(22,048
)
 
(10.9
)%
State tax, net of federal benefit
 
(4,090
)
 
3.4
 %
 
(7,580
)
 
(6.7
)%
 
4,397

 
2.2
 %
Non-deductible expenses
 
11,119

 
(9.3
)%
 
4,636

 
4.1
 %
 
2,703

 
1.3
 %
Share-based compensation
 
(1,594
)
 
1.3
 %
 
(2,105
)
 
(1.9
)%
 
1,161

 
0.6
 %
Change in tax contingency
 
7,096

 
(5.9
)%
 
(6,273
)
 
(5.5
)%
 
959

 
0.5
 %
Foreign dividend income
 
6,718

 
(5.6
)%
 
16,570

 
14.6
 %
 
540

 
0.3
 %
Tax credits
 
(1,996
)
 
1.7
 %
 
(8,431
)
 
(7.5
)%
 
(18,445
)
 
(9.1
)%
Return to provision adjustments
 
14,362

 
(12.0
)%
 
(25,307
)
 
(22.3
)%
 
(35,191
)
 
(17.4
)%
Effect of tax holiday
 
(26,834
)
 
22.4
 %
 
(26,277
)
 
(23.2
)%
 
(46,643
)
 
(23.1
)%
Other
 
3,506

 
(2.9
)%
 
1,266

 
1.1
 %
 
(3,801
)
 
(1.9
)%
Reported income tax (benefit) expense
 
$
(5,480
)
 
4.6
 %
 
$
3,441

 
3.0
 %
 
$
371,996

 
184.1
 %

Schedule of Deferred Tax Assets and Liabilities [Table Text Block] The items that gave rise to our deferred taxes as of December 31, 2019 and 2018 were as follows (in thousands):
 
 
2019
 
2018
Deferred tax assets:
 
 
 
 
Net operating losses
 
$
165,669

 
$
108,149

Accrued expenses
 
134,791

 
55,754

Compensation
 
22,401

 
18,564

Tax credits
 
13,127

 

Long-term contracts
 
11,215

 
4,967

Goodwill
 
5,557

 
9,223

Inventory
 
4,020

 
4,079

Equity in earnings
 
2,906

 
2,693

Deferred expenses
 
2,177

 
2,165

Property, plant and equipment
 

 
18,796

Capitalized interest
 

 
2,948

Other
 
20,143

 
17,373

Deferred tax assets, gross
 
382,006

 
244,711

Valuation allowance
 
(151,705
)
 
(159,546
)
Deferred tax assets, net of valuation allowance
 
230,301

 
85,165

Deferred tax liabilities:
 
 

 
 

Property, plant and equipment
 
(77,794
)
 

Investment in foreign subsidiaries
 
(5,554
)
 
(4,425
)
Acquisition accounting / basis difference
 
(5,356
)
 
(5,420
)
Restricted investments and derivatives
 
(4,330
)
 
(7,586
)
Capitalized interest
 
(2,199
)
 

Other
 
(10,790
)
 
(3,093
)
Deferred tax liabilities
 
(106,023
)
 
(20,524
)
Net deferred tax assets and liabilities
 
$
124,278

 
$
64,641


Summary of Valuation Allowance [Table Text Block]
Changes in the valuation allowance against our deferred tax assets were as follows during the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
2019
 
2018
 
2017
Valuation allowance, beginning of year
 
$
159,546

 
$
143,818

 
$
123,936

Additions
 
9,161

 
29,359

 
27,591

Reversals
 
(17,002
)
 
(13,631
)
 
(7,709
)
Valuation allowance, end of year
 
$
151,705

 
$
159,546

 
$
143,818


Summary of Income Tax Contingencies [Table Text Block]
A reconciliation of the beginning and ending amount of liabilities associated with uncertain tax positions for the years ended December 31, 2019, 2018, and 2017 is as follows (in thousands):
 
 
2019
 
2018
 
2017
Unrecognized tax benefits, beginning of year
 
$
72,193

 
$
84,173

 
$
89,256

Increases related to prior year tax positions
 
800

 

 
3,827

Decreases related to prior year tax positions
 

 
(2,979
)
 

Decreases from lapse in statute of limitations
 
(1,539
)
 
(10,704
)
 
(11,840
)
Decreases relating to settlements with authorities
 

 

 
(2,494
)
Increases related to current tax positions
 
715

 
1,703

 
5,424

Unrecognized tax benefits, end of year
 
$
72,169

 
$
72,193

 
$
84,173


Summary of Income Tax Examinations [Table Text Block]
The following table summarizes the tax years that are either currently under audit or remain open and subject to examination by the tax authorities in the most significant jurisdictions in which we operate:
 
 
Tax Years
Australia
 
2014 - 2018
Japan
 
2014 - 2018
Malaysia
 
2014 - 2018
United States
 
2008 - 2009; 2015 - 2018

v3.19.3.a.u2
Note 19. Net (Loss) Income Per Share (Tables)
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The calculation of basic and diluted net (loss) income per share for the years ended December 31, 2019, 2018, and 2017 was as follows (in thousands, except per share amounts):
 
 
2019
 
2018
 
2017
Basic net (loss) income per share
 
 
 
 
 
 
Numerator:
 
 
 
 
 
 
Net (loss) income
 
$
(114,933
)
 
$
144,326

 
$
(165,615
)
Denominator:
 
 

 
 

 
 

Weighted-average common shares outstanding
 
105,310

 
104,745

 
104,328

 
 
 
 
 
 
 
Diluted net (loss) income per share
 
 

 
 

 
 

Denominator:
 
 

 
 

 
 

Weighted-average common shares outstanding
 
105,310

 
104,745

 
104,328

Effect of restricted and performance stock units and stock purchase plan shares
 

 
1,368

 

Weighted-average shares used in computing diluted net (loss) income per share
 
105,310

 
106,113

 
104,328

 
 
 
 
 
 
 
Net (loss) income per share:
 
 
 
 
 
 
Basic
 
$
(1.09
)
 
$
1.38

 
$
(1.59
)
Diluted
 
$
(1.09
)
 
$
1.36

 
$
(1.59
)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
The following table summarizes the potential shares of common stock that were excluded from the computation of diluted net income per share for the years ended December 31, 2019, 2018, and 2017 as such shares would have had an anti-dilutive effect (in thousands):
 
 
2019
 
2018
 
2017
Anti-dilutive shares
 
868
 
299
 
1,021

v3.19.3.a.u2
Note 20. Accumulated Other Comprehensive Loss (Tables)
12 Months Ended
Dec. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive (Loss) Income
The following table presents the changes in accumulated other comprehensive loss, net of tax, for the year ended December 31, 2019 (in thousands):
 
 
Foreign Currency Translation Adjustment
 
Unrealized Gain (Loss) on Marketable Securities and Restricted Investments
 
Unrealized Gain (Loss) on Derivative Instruments
 
Total
Balance as of December 31, 2018
 
$
(66,380
)
 
$
10,641

 
$
1,273

 
$
(54,466
)
Other comprehensive (loss) income before reclassifications
 
(5,859
)
 
21,905

 
(1,086
)
 
14,960

Amounts reclassified from accumulated other comprehensive loss
 
(1,190
)
 
(40,621
)
 
(1,205
)
 
(43,016
)
Net tax effect
 

 
3,046

 
142

 
3,188

Net other comprehensive loss
 
(7,049
)
 
(15,670
)
 
(2,149
)
 
(24,868
)
Balance as of December 31, 2019
 
$
(73,429
)
 
$
(5,029
)
 
$
(876
)
 
$
(79,334
)

Reclassification out of Accumulated Other Comprehensive (Loss) Income
The following table presents the pretax amounts reclassified from accumulated other comprehensive loss into our consolidated statements of operations for the years ended December 31, 2019, 2018, and 2017 (in thousands):
Comprehensive Income Components
 
Income Statement Line Item
 
2019
 
2018
 
2017
Foreign currency translation adjustment
 
Cost of sales
 
$
1,190

 
$

 
$

Unrealized gain on marketable securities and restricted investments
 
Other income, net
 
$
40,621

 
$
55,405

 
$
49

Unrealized gain (loss) on derivative contracts:
 
 
 
 
 
 
 
 
Foreign exchange forward contracts
 
Net sales
 
124

 
(1,698
)
 

Foreign exchange forward contracts
 
Cost of sales
 
1,081

 
(212
)
 

Foreign exchange forward contracts
 
Foreign currency income (loss), net
 

 
(5,448
)
 

Foreign exchange forward contracts
 
Other income, net
 

 
546

 
(189
)
 
 
 
 
1,205

 
(6,812
)
 
(189
)
Total amount reclassified
 
 
 
$
43,016

 
$
48,593

 
$
(140
)

v3.19.3.a.u2
Note 21. Segment and Geographical Information (Tables)
12 Months Ended
Dec. 31, 2019
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
The following tables present certain financial information for our reportable segments for the years ended December 31, 2019, 2018, and 2017 (in thousands):
 
 
Year Ended December 31, 2019
 
 
Modules
 
Systems
 
Total
Net sales
 
$
1,460,116

 
$
1,603,001

 
$
3,063,117

Gross profit
 
290,079

 
259,133

 
549,212

Depreciation and amortization expense
 
161,993

 
21,708

 
183,701

Goodwill
 
14,462

 

 
14,462

 
 
Year Ended December 31, 2018
 
 
Modules
 
Systems
 
Total
Net sales
 
$
502,001

 
$
1,742,043

 
$
2,244,044

Gross (loss) profit
 
(50,467
)
 
442,644

 
392,177

Depreciation and amortization expense
 
85,797

 
18,647

 
104,444

Goodwill
 
14,462

 

 
14,462

 
 
Year Ended December 31, 2017
 
 
Modules
 
Systems
 
Total
Net sales
 
$
806,398

 
$
2,134,926

 
$
2,941,324

Gross profit
 
112,338

 
436,609

 
548,947

Depreciation and amortization expense
 
67,597

 
24,302

 
91,899



Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area
The following table presents net sales for the years ended December 31, 2019, 2018, and 2017 by geographic region, based on the customer country of invoicing (in thousands):
 
 
2019
 
2018
 
2017
United States
 
$
2,659,940

 
$
1,478,034

 
$
2,273,774

Australia
 
138,327

 
153,163

 
108,643

France
 
88,816

 
28,796

 
62,953

Japan
 
34,234

 
234,814

 
4,405

India
 
7,451

 
232,130

 
141,491

Turkey
 
426

 
19,354

 
124,433

All other foreign countries
 
133,923

 
97,753

 
225,625

Net sales
 
$
3,063,117

 
$
2,244,044

 
$
2,941,324


Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country
The following table presents long-lived assets, which include property, plant and equipment, PV solar power systems, project assets (current and noncurrent), and operating lease assets as of December 31, 2019 and 2018 by geographic region, based on the physical location of the assets (in thousands):
 
 
2019
 
2018
United States
 
$
1,077,593

 
$
659,854

Vietnam
 
699,841

 
702,071

Malaysia
 
637,322

 
532,418

Japan
 
416,375

 
319,571

Chile
 
234,470

 
240,495

All other foreign countries
 
75,356

 
108,871

Long-lived assets
 
$
3,140,957

 
$
2,563,280


v3.19.3.a.u2
Note 22. Concentrations of Risks (Tables)
12 Months Ended
Dec. 31, 2019
Risks and Uncertainties [Abstract]  
Schedules of Concentration of Risk, by Risk Factor The following customers each comprised 10% or more of our total net sales for the years ended December 31, 2019, 2018, and 2017:
 
 
2019
 
2018
 
2017
 
 
% of Net Sales
 
% of Net Sales
 
% of Net Sales
Customer #1
 
16
%
 
*

 
*

Customer #2
 
*

 
16
%
 
*

Customer #3
 
*

 
13
%
 
47
%
——————————
*
Net sales for these customers were less than 10% of our total net sales for the period.
v3.19.3.a.u2
Note 2. Summary of Significant Accounting Policies (Details) - PP&E Table
12 Months Ended
Dec. 31, 2019
Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Standard Limited EPC Warranty Term 1 year
Minimum [Member] | Building and Building Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 25 years
Minimum [Member] | Manufacturing Machinery and Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 5 years
Minimum [Member] | Furniture, Fixtures, Computer Hardware, and Computer Software [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 3 years
Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Standard Limited EPC Warranty Term 2 years
Maximum [Member] | Building and Building Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 40 years
Maximum [Member] | Manufacturing Machinery and Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 15 years
Maximum [Member] | Furniture, Fixtures, Computer Hardware, and Computer Software [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 7 years
Maximum [Member] | Leasehold Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 15 years
v3.19.3.a.u2
Note 2. Summary of Significant Accounting Policies (Details) - Textuals - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Line Items]      
Equity Method Investment, Other than Temporary Impairment   $ 3.5 $ 2.0
Standard Limited Module Workmanship Warranty Term 10 years    
Standard Limited Module Power Output Warranty, Annual Degradation Percentage 0.50%    
PV Solar Power Systems, Policy Useful Life 25 years    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years    
Minimum [Member]      
Accounting Policies [Line Items]      
PV Solar Power Systems, Current Useful Life 19 years    
Finite-Lived Intangible Asset, Useful Life 10 years    
Standard Limited Module Power Output Warranty 80.00%    
Standard Limited EPC Warranty Term 1 year    
Maximum [Member]      
Accounting Policies [Line Items]      
PV Solar Power Systems, Current Useful Life 25 years    
Finite-Lived Intangible Asset, Useful Life 20 years    
Standard Limited Module Power Output Warranty 98.00%    
PV Solar Power Systems, Policy Useful Life 25 years    
Standard Limited EPC Warranty Term 2 years    
v3.19.3.a.u2
Note 3. Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease assets $ 145,711   $ 0
Operating lease liabilities $ 123,617    
Accounting Standards Update 2016-02 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease assets   $ 140,700  
Operating lease liabilities   $ 119,900  
v3.19.3.a.u2
Note 4. Restructuring and Asset Impairments (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges   $ 0 $ 0 $ 37,181
Cadmium Telluride Module Manufacturing and Corporate Restructuring [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges       41,800
Manufacturing Equipment Impairments [Member] | Cadmium Telluride Module Manufacturing and Corporate Restructuring [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges       27,600
Employee Severance [Member] | Cadmium Telluride Module Manufacturing and Corporate Restructuring [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges       7,600
Other Restructuring [Member] | Cadmium Telluride Module Manufacturing and Corporate Restructuring [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges       $ 6,700
Other Restructuring [Member] | Prior Manufacturing Restructuring [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges $ (4,700)      
v3.19.3.a.u2
Note 5. Goodwill and Intangible Assets (Details) - Goodwill - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill [Line Items]      
Goodwill $ 14,462 $ 14,462 $ 14,462
Goodwill, period increase (decrease) 0 0  
Modules segment [Member]      
Goodwill [Line Items]      
Goodwill, gross 407,827 407,827 407,827
Accumulated impairment losses (393,365) (393,365) $ (393,365)
Goodwill 14,462 14,462  
Goodwill from acquisition 0 0  
Goodwill impairment $ 0 $ 0  
v3.19.3.a.u2
Note 5. Goodwill and Intangible Assets (Details) - Other Intangible Assets - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Other Intangible Assets, Net [Abstract]      
Intangible assets, gross $ 112,230 $ 111,608  
Intangible assets, accumulated amortization (47,687) (37,446)  
Intangible assets, net 64,543 74,162  
Amortization of intangible assets 10,200 9,900 $ 8,300
Other Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]      
Other Intangible Assets, Amortization Expense, Next Twelve Months 10,498    
Other Intangible Assets, Amortization Expense, Year Two 10,496    
Other Intangible Assets, Amortization Expense, Year Three 10,471    
Other Intangible Assets, Amortization Expense, Year Four 10,187    
Other Intangible Assets, Amortization Expense, Year Five 10,057    
Other Intangible Assets, Amortization Expense, Thereafter 12,834    
Finite-Lived Intangible Assets, Net 64,543    
Developed technology [Member]      
Other Intangible Assets, Net [Abstract]      
Intangible assets, gross 97,964 97,714  
Intangible assets, accumulated amortization (42,344) (33,093)  
Intangible assets, net 55,620 64,621  
Power purchase agreements [Member]      
Other Intangible Assets, Net [Abstract]      
Intangible assets, gross 6,486 6,486  
Intangible assets, accumulated amortization (972) (648)  
Intangible assets, net 5,514 5,838  
Patents [Member]      
Other Intangible Assets, Net [Abstract]      
Intangible assets, gross 7,780 7,408  
Intangible assets, accumulated amortization (4,371) (3,705)  
Intangible assets, net $ 3,409 $ 3,703  
v3.19.3.a.u2
Note 6. Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Cash and cash equivalents $ 1,352,741 $ 1,403,562    
Marketable securities 811,506 1,143,704    
Total cash, cash equivalents, marketable securities 2,164,247 2,547,266    
Restricted cash - current 13,697 19,671    
Restricted cash - noncurrent 80,072 139,390    
Cash, cash equivalents, restricted cash 1,446,510 1,562,623 $ 2,330,476 $ 1,415,690
Marketable securities, Sale Proceeds 52,000 10,800 118,300  
Maximum [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Marketable securities, realized gain 0 100 $ 100  
Foreign debt [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Marketable securities 387,820 318,646    
Foreign government obligations [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Marketable securities 22,011 98,621    
U.S debt [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Marketable securities 66,134 44,468    
Time deposits [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Marketable securities 335,541 681,969    
Cash [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Cash and cash equivalents 1,345,419 1,202,774    
Money Market Funds [Member]        
Cash, Cash Equivalents, and Marketable Securities [Line Items]        
Cash and cash equivalents $ 7,322 $ 200,788    
v3.19.3.a.u2
Note 6. Cash, Cash Equivalents, and Marketable Securities (Details) - Available For Sale
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Investments
Dec. 31, 2018
USD ($)
Investments
Dec. 31, 2017
USD ($)
Debt Securities, Available-for-sale [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost $ 811,277 $ 1,145,839  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 747 521  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 518 2,656  
Marketable securities $ 811,506 $ 1,143,704  
Debt securities, Available-for-sale, continuous unrealized loss position:      
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Investments 0 15  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 208,740 $ 166,198  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, less than 12 months, accumulated loss 518 834  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 months or longer 0 207,152  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 1,822  
Debt Securities, Available-for-sale, in loss position 208,740 373,350  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss 518 2,656  
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value 488,118    
Debt securities, Available-for-sale, Debt Maturities, Rolling Year One Through Two 164,410    
Debt securities, Available-for-sale, Debt Maturities, Rolling Year Two Through Three 158,978    
Total marketable securities 811,506 1,143,704  
Foreign debt [Member]      
Debt Securities, Available-for-sale [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost 387,775 320,056  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 551 468  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 506 1,878  
Marketable securities 387,820 318,646  
Debt securities, Available-for-sale, continuous unrealized loss position:      
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 178,174 150,842  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, less than 12 months, accumulated loss 506 802  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 months or longer 0 94,446  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 1,076  
Debt Securities, Available-for-sale, in loss position 178,174 245,288  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss 506 1,878  
Total marketable securities 387,820 318,646  
Foreign government obligations [Member]      
Debt Securities, Available-for-sale [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost 21,991 99,189  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 20 0  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 0 568  
Marketable securities 22,011 98,621  
Debt securities, Available-for-sale, continuous unrealized loss position:      
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months   0  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, less than 12 months, accumulated loss   0  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 months or longer   98,621  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   568  
Debt Securities, Available-for-sale, in loss position   98,621  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss   568  
Total marketable securities 22,011 98,621  
U.S debt [Member]      
Debt Securities, Available-for-sale [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost 65,970 44,625  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 176 53  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 12 210  
Marketable securities 66,134 44,468  
Debt securities, Available-for-sale, continuous unrealized loss position:      
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 30,566 15,356  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, less than 12 months, accumulated loss 12 32  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 months or longer 0 14,085  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 178  
Debt Securities, Available-for-sale, in loss position 30,566 29,441  
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss 12 210  
Total marketable securities 66,134 44,468  
Time deposits [Member]      
Debt Securities, Available-for-sale [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost 335,541 681,969  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0 0  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 0 0  
Marketable securities 335,541 681,969  
Debt securities, Available-for-sale, continuous unrealized loss position:      
Total marketable securities 335,541 681,969  
Maximum [Member]      
Debt Securities, Available-for-sale [Line Items]      
Debt Securities, Available-for-sale, Realized Gain $ 0 $ 100 $ 100
v3.19.3.a.u2
Note 7. Restricted Cash and Investments (Details) - Restricted Cash and Restricted Investments - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]    
Restricted cash - noncurrent $ 80,072 $ 139,390
Restricted investments 223,785 179,000
Restricted cash and investments, noncurrent 303,857 318,390
Restricted cash - current $ 13,697 19,671
Product minimum service life 25 years  
Restricted Investments [Member]    
Debt Securities, Available-for-sale [Line Items]    
Restricted investments $ 223,785 179,000
Proceeds from sale of restricted investments 281,600 231,100
Realized gain from sale of restricted investments 40,600 55,400
Proceeds from sale of restricted investments withdrawn from custodial accounts $ 22,200 $ 143,100
v3.19.3.a.u2
Note 7. Restricted Cash and Investments (Details) - Available For Sale
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Investments
Dec. 31, 2018
USD ($)
Investments
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost $ 811,277 $ 1,145,839
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 747 521
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 518 2,656
Restricted investments $ 223,785 $ 179,000
Debt securities, Available-for-sale, continuous unrealized loss position:    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Investments 0 15
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 208,740 $ 166,198
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 518 834
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 0 207,152
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 1,822
Debt Securities, Available-for-sale, in loss position 208,740 373,350
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss 518 2,656
Foreign government obligations [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost 21,991 99,189
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 20 0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 0 568
Debt securities, Available-for-sale, continuous unrealized loss position:    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months   0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value   98,621
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   568
Debt Securities, Available-for-sale, in loss position   98,621
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss   568
Restricted Investments [Member]    
Debt Securities, Available-for-sale [Line Items]    
Proceeds from sale of restricted investments 281,600 231,100
Debt Securities, Available-for-sale, Realized Gain (Loss) 40,600 55,400
Proceeds from sale of restricted investments withdrawn from custodial accounts 22,200 143,100
Debt Securities, Available-for-sale, Amortized Cost 229,199 171,021
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0 14,650
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 5,414 6,671
Restricted investments $ 223,785 $ 179,000
Debt securities, Available-for-sale, continuous unrealized loss position:    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Investments 0 6
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 223,785 $ 41,335
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 5,414 235
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 0 87,401
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 6,436
Debt Securities, Available-for-sale, in loss position 223,785 128,736
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss $ 5,414 6,671
Restricted Investments [Member] | Minimum [Member]    
Debt securities, Available-for-sale, continuous unrealized loss position:    
Contractual maturities of available-for-sale marketable securities, range start (in years) 10 years  
Restricted Investments [Member] | Maximum [Member]    
Debt securities, Available-for-sale, continuous unrealized loss position:    
Contractual maturities of available-for-sale marketable securities, range end (in years) 21 years  
Restricted Investments [Member] | Foreign government obligations [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost $ 129,499 73,798
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0 14,234
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 3,433 235
Restricted investments 126,066 87,797
Debt securities, Available-for-sale, continuous unrealized loss position:    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 126,066 41,335
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 3,433 235
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, in loss position 126,066 41,335
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss 3,433 235
Restricted Investments [Member] | U.S. government obligations [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost 99,700 97,223
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0 416
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 1,981 6,436
Restricted investments 97,719 91,203
Debt securities, Available-for-sale, continuous unrealized loss position:    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 97,719 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 1,981 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 0 87,401
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 6,436
Debt Securities, Available-for-sale, in loss position 97,719 87,401
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, accumulated loss $ 1,981 $ 6,436
v3.19.3.a.u2
Note 8. Consolidated Balance Sheet Details (Details)
$ in Thousands, € in Millions
1 Months Ended 12 Months Ended
Jun. 30, 2018
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2019
EUR (€)
Dec. 31, 2018
EUR (€)
Feb. 29, 2016
Nov. 30, 2014
Apr. 30, 2009
EUR (€)
Document Period End Date   Dec. 31, 2019              
Accounts receivable trade, net:                  
Accounts receivable trade, gross   $ 476,425 $ 129,644            
Allowance for doubtful accounts   (1,386) (1,362)            
Accounts receivable trade, net   475,039 128,282            
Secured accounts receivable   44,900 8,500            
Accounts receivable, unbilled   162,057 441,666            
Retainage   21,416 16,500            
Accounts receivable, unbilled and retainage   183,473 458,166            
Inventory, Net [Abstract]                  
Raw materials   248,756 224,329            
Work in process   59,924 41,294            
Finished goods   295,479 252,372            
Inventories   604,159 517,995            
Inventories - current   443,513 387,912            
Inventories - noncurrent   160,646 130,083            
Prepaid expenses and other current assets:                  
Prepaid expenses   137,927 90,981            
Prepaid income taxes   47,811 59,319            
Indirect tax receivables   29,908 26,327            
Restricted cash   13,697 19,671            
Notes receivable   23,873 5,196            
Derivative instruments   1,199 2,364            
Other current assets   22,040 39,203            
Prepaid expenses and other current assets   276,455 243,061            
Notes receivable, affiliates - noncurrent   0 22,832            
Property, plant and equipment, net:                  
Property, plant and equipment, gross   3,567,231 3,041,068            
Accumulated depreciation   (1,386,082) (1,284,857)            
Property, plant and equipment, net   2,181,149 1,756,211            
PV solar power systems, net                  
PV solar power systems, gross   530,004 343,061            
Accumulated depreciation   (53,027) (34,421)            
PV solar power systems, net   476,977 308,640            
Project Assets - Current and Noncurrent:                  
Project assets - development costs, including project acquisition and land costs   254,466 298,070            
Project assets - construction costs   82,654 200,359            
Total project assets   337,120 498,429            
Project assets - current   3,524 37,930            
Project assets - noncurrent   333,596 460,499            
Interest Costs Incurred [Abstract]                  
Interest cost incurred   (29,656) (31,752) $ (27,457)          
Interest expense, net   (27,066) (25,921) (25,765)          
Other Assets, Noncurrent                  
Operating lease assets   145,711 0            
Indirect tax receivables   9,446 22,487            
Notes receivable   8,194 8,017            
Income taxes receivable   4,106 4,444            
Equity method investments   2,812 3,186            
Derivative instruments   139 0            
Deferred rent   0 27,249            
Other   79,446 33,495            
Other assets   249,854 98,878            
Proceeds from sales of equity method investments   0 247,595 0          
Equity in earnings, net of tax   (284) 34,620 4,266          
Distributions received from equity method investments   0 12,394 23,042          
Net sales   3,063,117 2,244,044 2,941,324          
Accrued Expenses                  
Accrued project costs   91,971 147,162            
Accrued compensation and benefits   65,170 41,937            
Accrued property, plant, and equipment   42,834 89,905            
Accrued inventory   39,366 53,075            
Product warranty liability   20,291 27,657            
Other   91,628 81,844            
Accrued expenses   351,260 441,580            
Other current liabilities                  
Operating lease liabilities, current   11,102 0            
Derivative instruments   2,582 7,294            
Contingent consideration   2,395 665            
Other   12,051 6,421            
Other current liabilities   28,130 14,380            
Other liabilities:                  
Operating lease liabilities, noncurrent   112,515 0            
Product warranty liability   109,506 193,035            
Other taxes payable   90,201 83,058            
Deferred revenue, noncurrent   71,438 48,014            
Transition tax liability, noncurrent   70,047 77,016            
Derivative instruments   7,439 9,205            
Contingent consideration   4,500 2,250            
Other   43,120 55,261            
Other liabilities   508,766 467,839            
Credit Facility Agreement [Member]                  
Prepaid expenses and other current assets:                  
Note Receivable Interest Rate                 8.00%
Other Assets, Noncurrent                  
Notes receivable   7,800 8,000   € 7.0 € 7.0      
Notes Receivable Initial Available Amount | €                 € 17.5
Property, plant and equipment [Member]                  
Depreciation                  
Depreciation   176,400 109,100 91,400          
PV solar power systems [Member]                  
Depreciation                  
Depreciation   18,700 15,300 19,800          
Project assets                  
Interest Costs Incurred [Abstract]                  
Interest costs capitalized - project assets   2,590 5,831 $ 1,692          
Land [Member]                  
Property, plant and equipment, net:                  
Property, plant and equipment, gross   14,241 14,382            
Building and improvements [Member]                  
Property, plant and equipment, net:                  
Property, plant and equipment, gross   664,266 567,605            
Machinery and equipment [Member]                  
Property, plant and equipment, net:                  
Property, plant and equipment, gross   2,436,997 1,826,434            
Office equipment and furniture [Member]                  
Property, plant and equipment, net:                  
Property, plant and equipment, gross   159,848 178,011            
Leasehold improvements [Member]                  
Property, plant and equipment, net:                  
Property, plant and equipment, gross   48,772 49,055            
Construction in progress [Member]                  
Property, plant and equipment, net:                  
Property, plant and equipment, gross   $ 243,107 $ 405,581            
Series 6 Manufacturing Equipment [Member]                  
Property, plant and equipment, net:                  
Property, Plant and Equipment, Useful Life   15 years 10 years            
Expected Annual Depreciation Reduction   $ 15,000              
Maryland Solar Project [Member]                  
Other Assets, Noncurrent                  
Net sales $ 32,000                
Clean Energy Collective, LLC [Member]                  
Prepaid expenses and other current assets:                  
Notes receivable   $ 23,900              
Note Receivable Interest Rate               16.00%  
Convertible Notes Receivable Interest Rate             10.00%    
Notes receivable, affiliates - noncurrent     $ 22,800            
8point3 Operating Company, LLC [Member]                  
Other Assets, Noncurrent                  
Proceeds from sales of equity method investments 240,000                
Equity in earnings, net of tax     39,700            
Equity method investment, realized gain (loss) on disposal $ 40,300                
Distributions received from equity method investments     $ 12,400            
v3.19.3.a.u2
Note 9. Derivative Financial Instruments (Details) - Summary - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Prepaid Expenses and Other Current Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net $ 1,199 $ 2,364
Prepaid Expenses and Other Current Assets [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 226 158
Prepaid Expenses and Other Current Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 973 2,206
Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 139  
Other Assets [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 139  
Other Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0  
Other Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (2,582) (7,294)
Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 369 0
Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 2,213 7,294
Other Noncurrent Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (7,439) (9,205)
Other Noncurrent Liabilities [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 230 0
Other Noncurrent Liabilities [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 7,209 9,205
Foreign exchange forward contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 226 158
Foreign exchange forward contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 973 2,206
Foreign exchange forward contracts [Member] | Other Assets [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 139  
Foreign exchange forward contracts [Member] | Other Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0  
Foreign exchange forward contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 369 0
Foreign exchange forward contracts [Member] | Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 1,807 7,096
Foreign exchange forward contracts [Member] | Other Noncurrent Liabilities [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 230 0
Foreign exchange forward contracts [Member] | Other Noncurrent Liabilities [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 0 0
Interest rate swap contract [Member] | Prepaid Expenses and Other Current Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0 0
Interest rate swap contract [Member] | Other Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0  
Interest rate swap contract [Member] | Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 406 198
Interest rate swap contract [Member] | Other Noncurrent Liabilities [Member] | Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability $ 7,209 $ 9,205
v3.19.3.a.u2
Note 9. Derivative Financial Instruments (Details) - Hedging Relationship - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Not Designated as Hedging Instrument [Member] | Foreign exchange forward contracts [Member] | Foreign currency income (loss), net [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative, Gain (Loss) on Derivative, Net $ 3,716 $ 12,113 $ (33,882)  
Not Designated as Hedging Instrument [Member] | Interest rate swap contract [Member] | Cost of sales [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative, Gain (Loss) on Derivative, Net (1,656) 0 0  
Not Designated as Hedging Instrument [Member] | Interest rate swap contract [Member] | Interest Expense [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative, Gain (Loss) on Derivative, Net (8,532) (8,643) (5,932)  
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign exchange forward contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Balance in accumulated other comprehensive income (loss) (962) 1,329 (1,723) $ 2,556
Amounts recognized in other comprehensive income (loss) (1,086) (3,760) (4,468)  
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign exchange forward contracts [Member] | Net sales [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net (124) 1,698    
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign exchange forward contracts [Member] | Cost of sales [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net (1,081) 212    
Derivative Instruments, Gain (Loss) Recognized in Income, Amount Excluded from Effectiveness Testing, Net $ 800      
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign exchange forward contracts [Member] | Foreign currency income (loss), net [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net   5,448    
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign exchange forward contracts [Member] | Other income, net [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net   (546) 189  
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net   0 0  
Derivative Instruments, Gain (Loss) Recognized in Income, Amount Excluded from Effectiveness Testing, Net   $ 500 $ 700  
v3.19.3.a.u2
Note 9. Derivative Financial Instruments (Details) - Risk Management
$ in Millions, $ in Millions, ¥ in Billions
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2019
JPY (¥)
Dec. 31, 2018
AUD ($)
Dec. 31, 2018
JPY (¥)
Jun. 30, 2018
AUD ($)
Mar. 31, 2017
JPY (¥)
Foreign exchange forward contracts [Member]              
Derivatives, Fair Value [Line Items]              
Maximum length of time hedged in foreign currency Cash flow hedge 22 months 6 months          
Foreign exchange forward contracts [Member] | Cash Flow Hedging [Member]              
Derivatives, Fair Value [Line Items]              
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months $ (0.6)            
Foreign exchange forward contracts [Member] | Cash Flow Hedging [Member] | United States of America, Dollars              
Derivatives, Fair Value [Line Items]              
Derivative, Notional Amount 69.9            
Foreign exchange forward contracts [Member] | Cash Flow Hedging [Member] | Australia, Dollars              
Derivatives, Fair Value [Line Items]              
Derivative, Notional Amount   $ 6.2   $ 8.8      
Anamizu Credit Facility [Member] | Interest rate swap contract [Member]              
Derivatives, Fair Value [Line Items]              
Derivative, Notional Amount $ 8.0   ¥ 0.9        
Derivative, basis spread on variable rate 0.70%   0.70%        
Derivative, fixed interest rate paid on swap 1.1925%   1.1925%        
Beryl Credit Facility [Member] | Interest rate swap contract [Member]              
Derivatives, Fair Value [Line Items]              
Derivative, Notional Amount   72.9   $ 103.4   $ 42.4  
Beryl Credit Facility [Member] | Minimum [Member] | Interest rate swap contract [Member]              
Derivatives, Fair Value [Line Items]              
Derivative, fixed interest rate paid on swap           2.0615%  
Beryl Credit Facility [Member] | Maximum [Member] | Interest rate swap contract [Member]              
Derivatives, Fair Value [Line Items]              
Derivative, fixed interest rate paid on swap           3.202%  
Ishikawa Credit Agreement [Member] | Interest rate swap contract [Member]              
Derivatives, Fair Value [Line Items]              
Derivative, Notional Amount $ 171.7 $ 174.1 ¥ 18.7   ¥ 19.2   ¥ 5.7
Derivative, basis spread on variable rate             0.75%
Derivative, fixed interest rate paid on swap             1.482%
v3.19.3.a.u2
Note 9. Derivative Financial Instruments (Details) - Transaction Exposure - Foreign exchange forward contracts [Member] - Not Designated as Hedging Instrument [Member]
€ in Millions, ₨ in Millions, ¥ in Millions, RM in Millions, R$ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2019
SGD ($)
Dec. 31, 2019
EUR (€)
Dec. 31, 2019
CLP ($)
Dec. 31, 2019
AUD ($)
Dec. 31, 2019
MYR (RM)
Dec. 31, 2019
BRL (R$)
Dec. 31, 2019
CAD ($)
Dec. 31, 2019
MXN ($)
Dec. 31, 2019
INR (₨)
Dec. 31, 2019
JPY (¥)
Dec. 31, 2018
SGD ($)
Dec. 31, 2018
EUR (€)
Dec. 31, 2018
CLP ($)
Dec. 31, 2018
AUD ($)
Dec. 31, 2018
MYR (RM)
Dec. 31, 2018
BRL (R$)
Dec. 31, 2018
CAD ($)
Dec. 31, 2018
MXN ($)
Dec. 31, 2018
INR (₨)
Dec. 31, 2018
JPY (¥)
Australia, Dollars                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Australian dollar Australian dollar                                        
Derivative, Currency Sold Australian dollar Australian dollar                                        
Brazil, Brazil Real                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Brazilian real Brazilian real                                        
Derivative, Currency Sold Brazilian real                                          
Canada, Dollars                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Canadian dollar                                          
Derivative, Currency Sold Canadian dollar Canadian dollar                                        
Chile, Pesos                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Chilean peso                                          
Derivative, Currency Sold Chilean peso Chilean peso                                        
Euro Member Countries, Euro                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Euro Euro                                        
Derivative, Currency Sold Euro Euro                                        
India, Rupees                                            
Derivative [Line Items]                                            
Derivative, Currency Sold Indian rupee Indian rupee                                        
Japan, Yen                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Japanese yen Japanese yen                                        
Derivative, Currency Sold Japanese yen Japanese yen                                        
Malaysia, Ringgits                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Malaysian ringgit Malaysian ringgit                                        
Derivative, Currency Sold Malaysian ringgit Malaysian ringgit                                        
Mexico, Pesos                                            
Derivative [Line Items]                                            
Derivative, Currency Sold Mexican peso Mexican peso                                        
Singapore, Dollars                                            
Derivative [Line Items]                                            
Derivative, Currency Bought Singapore dollar Singapore dollar                                        
Long [Member] | Australia, Dollars                                            
Derivative [Line Items]                                            
Derivative, Notional Amount $ 10.4 $ 1.5       $ 14.9                   $ 2.1            
Long [Member] | Brazil, Brazil Real                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 3.3 2.2           R$ 13.2                   R$ 8.5        
Long [Member] | Canada, Dollars                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 3.4               $ 4.5                          
Long [Member] | Chile, Pesos                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 2.0       $ 1,493.1                                  
Long [Member] | Euro Member Countries, Euro                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 96.5 131.9   € 86.1                   € 115.2                
Long [Member] | Japan, Yen                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 33.3 8.4                   ¥ 3,625.5                   ¥ 931.6
Long [Member] | Malaysia, Ringgits                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 21.6 8.3         RM 88.6                   RM 34.3          
Long [Member] | Singapore, Dollars                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 2.2 2.8 $ 2.9                   $ 3.8                  
Short [Member] | Australia, Dollars                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 7.8 37.3       $ 11.1                   $ 52.9            
Short [Member] | Brazil, Brazil Real                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 1.1             R$ 4.3                            
Short [Member] | Canada, Dollars                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 1.2 2.1             $ 1.6                   $ 2.9      
Short [Member] | Chile, Pesos                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 5.1 5.1     $ 3,866.1                   $ 3,506.6              
Short [Member] | Euro Member Countries, Euro                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 130.3 219.7   € 116.3                   € 191.8                
Short [Member] | India, Rupees                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 18.0 11.3                 ₨ 1,283.8                   ₨ 789.2  
Short [Member] | Japan, Yen                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 212.2 216.2                   ¥ 23,089.5                   ¥ 23,858.8
Short [Member] | Malaysia, Ringgits                                            
Derivative [Line Items]                                            
Derivative, Notional Amount 10.1 12.9         RM 41.3                   RM 53.8          
Short [Member] | Mexico, Pesos                                            
Derivative [Line Items]                                            
Derivative, Notional Amount $ 1.8 $ 1.9               $ 34.6                   $ 37.3    
v3.19.3.a.u2
Note 10. Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Leases [Abstract]      
Operating lease cost $ 21,833    
Variable lease cost 3,518    
Short-term lease cost 7,511    
Total lease cost 32,862    
Payments of amounts included in the measurement of operating lease liabilities 21,678    
Lease assets obtained in exchange for operating lease liabilities 179,804    
Operating lease assets 145,711 $ 0  
Operating lease liabilities, current 11,102 0  
Operating lease liabilities, noncurrent $ 112,515 0  
Weighted-average remaining lease term 15 years    
Weighted-average discount rate 4.30%    
Operating lease liabilities, future payments, due 2020 $ 15,153    
Operating lease liabilities, future payments, due 2021 14,868    
Operating lease liabilities, future payments, due 2022 13,903    
Operating lease liabilities, future payments, due 2023 13,491    
Operating lease liabilities, future payments, due 2024 13,217    
Operating lease liabilities, future payments, due after 2024 92,281    
Operating lease liabilities, total future payments 162,913    
Future interest (39,296)    
Total lease liabilities $ 123,617    
Rent Expense   $ 18,900 $ 22,100
v3.19.3.a.u2
Note 11. Fair Value Measurements (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Assets:    
Marketable securities $ 811,506 $ 1,143,704
Restricted investments 223,785 179,000
Foreign debt [Member]    
Assets:    
Marketable securities 387,820 318,646
Foreign government obligations [Member]    
Assets:    
Marketable securities 22,011 98,621
U.S debt [Member]    
Assets:    
Marketable securities 66,134 44,468
Time deposits [Member]    
Assets:    
Marketable securities 335,541 681,969
Fair Value, Measurements, Recurring [Member]    
Assets:    
Restricted investments 223,785 179,000
Derivative assets 1,338 2,364
Total assets 1,043,951 1,525,856
Liabilities:    
Derivative liabilities 10,021 16,499
Fair Value, Measurements, Recurring [Member] | Foreign debt [Member]    
Assets:    
Marketable securities 387,820 318,646
Fair Value, Measurements, Recurring [Member] | Foreign government obligations [Member]    
Assets:    
Marketable securities 22,011 98,621
Fair Value, Measurements, Recurring [Member] | U.S debt [Member]    
Assets:    
Marketable securities 66,134 44,468
Fair Value, Measurements, Recurring [Member] | Time deposits [Member]    
Assets:    
Marketable securities 335,541 681,969
Fair Value, Measurements, Recurring [Member] | Money market funds    
Assets:    
Cash equivalents 7,322 200,788
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Assets:    
Restricted investments 0 0
Derivative assets 0 0
Total assets 342,863 882,757
Liabilities:    
Derivative liabilities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign debt [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign government obligations [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S debt [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Time deposits [Member]    
Assets:    
Marketable securities 335,541 681,969
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Money market funds    
Assets:    
Cash equivalents 7,322 200,788
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Assets:    
Restricted investments 223,785 179,000
Derivative assets 1,338 2,364
Total assets 701,088 643,099
Liabilities:    
Derivative liabilities 10,021 16,499
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign debt [Member]    
Assets:    
Marketable securities 387,820 318,646
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign government obligations [Member]    
Assets:    
Marketable securities 22,011 98,621
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S debt [Member]    
Assets:    
Marketable securities 66,134 44,468
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Time deposits [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Money market funds    
Assets:    
Cash equivalents 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Assets:    
Restricted investments 0 0
Derivative assets 0 0
Total assets 0 0
Liabilities:    
Derivative liabilities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign debt [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign government obligations [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S debt [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Time deposits [Member]    
Assets:    
Marketable securities 0 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Money market funds    
Assets:    
Cash equivalents $ 0 $ 0
v3.19.3.a.u2
Note 11. Fair Value Measurements (Details) - Balance Sheet Grouping - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Notes receivable - current $ 23,873 $ 5,196
Notes receivable - noncurrent 8,194 8,017
Notes receivable, affiliate 0 22,832
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]    
Long-term Debt, including current maturities 482,892  
Reported Value Measurement [Member]    
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Notes receivable - current 23,873 5,196
Notes receivable - noncurrent 8,194 8,017
Notes receivable, affiliate 0 22,832
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]    
Long-term Debt, including current maturities 482,892 479,157
Estimate of Fair Value Measurement [Member]    
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Notes receivable - current 24,929 5,196
Notes receivable - noncurrent 10,276 8,010
Notes receivable, affiliate 0 24,295
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]    
Long-term Debt, including current maturities $ 504,213 $ 470,124
v3.19.3.a.u2
Note 12. Solar Module Collection and Recycling Liability (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Solar Module Collection and Recycling Liability [Abstract]      
Change in estimate of module collection and recycling liability   $ 34,200 $ 15,800
Accrued solar module collection and recycling liability $ 137,761 134,442  
Solar module collection and recycling expense, cost of sales   (25,000) (13,200)
Solar module collection and recycling expense, accretion expense $ 4,900 $ (2,900) $ 3,900
Percentage increase in annualized inflation rate 1.00%    
Estimated increase in solar module collection recycling liability from sensitivity analysis $ 26,300    
Percentage decrease in annualized inflation rate 1.00%    
Estimated decrease in solar module collection recycling liability from sensitivity analysis $ 22,300    
v3.19.3.a.u2
Note 13. Debt (Details)
$ in Thousands, $ in Millions, ₨ in Billions, ¥ in Billions
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2019
JPY (¥)
Jun. 30, 2019
USD ($)
Dec. 31, 2018
AUD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2018
AUD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2018
INR (₨)
Jun. 30, 2017
USD ($)
Jun. 30, 2017
JPY (¥)
Dec. 31, 2016
USD ($)
Dec. 31, 2016
JPY (¥)
Sep. 30, 2015
USD ($)
Sep. 30, 2015
JPY (¥)
Long-term Debt [Abstract]                                
Long-term debt, gross $ 482,892 $ 479,157                            
Less: unamortized discount and issuance costs (11,195) (12,366)                            
Total long-term debt 471,697 466,791                            
Less: current portion (17,510) (5,570)                            
Noncurrent portion 454,187 461,221                            
Interest Paid 18,800 16,600 $ 10,200                          
Long-term Debt, Fiscal Year Maturity [Abstract]                                
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 17,684                              
Long-term Debt, Maturities, Repayments of Principal in Year Two 79,306                              
Long-term Debt, Maturities, Repayments of Principal in Year Three 19,265                              
Long-term Debt, Maturities, Repayments of Principal in Year Four 18,284                              
Long-term Debt, Maturities, Repayments of Principal in Year Five 19,212                              
Long-term Debt, Maturities, Repayments of Principal after Year Five 329,141                              
Total long-term debt future principal payments $ 482,892                              
Revolving Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency USD                              
Revolving credit facility $ 0 0                            
Line of Credit Facility, Current Borrowing Capacity 500,000                              
Line of Credit Facility, Maximum Borrowing Capacity 750,000                              
Letters of Credit Outstanding, Amount $ 39,300 66,000                            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.30%                              
Fronting fee 0.125%                              
Debt Instrument, Interest Rate, Stated Percentage 3.76%     3.76%                        
Debt Instrument, Description of Variable Rate Basis Borrowings under the credit facility bear interest at (i) London Interbank Offered Rate (“LIBOR”), adjusted for Eurocurrency reserve requirements, plus a margin of 2.00% or (ii) a base rate as defined in the credit agreement plus a margin of 1.00% depending on the type of borrowing requested                              
Revolving Credit Facility [Member] | Minimum [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Basis Spread on Variable Rate 1.00%                              
Revolving Credit Facility [Member] | Maximum [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Basis Spread on Variable Rate 2.00%                              
Luz del Norte Credit Facilities [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency USD                              
Long-term debt, gross $ 188,017 188,849                            
Luz del Norte Credit Facilities [Member] | DFC [Member] | Parque Solar Fotovoltaico Luz del Norte SpA [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross 140,800 141,400                            
Luz del Norte Credit Facilities [Member] | IFC [Member] | Parque Solar Fotovoltaico Luz del Norte SpA [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 47,200 47,400                            
Luz del Norte Credit Facilities [Member] | DFC and IFC [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Fixed Rate Basis Fixed rate loans at bank rate plus 3.50%                              
Debt Instrument, Description of Variable Rate Basis Variable rate loans at 91-Day U.S. Treasury Bill Yield or LIBOR plus 3.50%                              
Debt Instrument, Basis Spread on Fixed Rate 3.50%                              
Debt Instrument, Basis Spread on Variable Rate 3.50%                              
Luz del Norte Credit Facilities [Member] | Fixed Rate Term Loan [Member] | DFC and IFC [Member] | Parque Solar Fotovoltaico Luz del Norte SpA [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 155,800                              
Luz del Norte Credit Facilities [Member] | Variable Rate Term Loan [Member] | DFC and IFC [Member] | Parque Solar Fotovoltaico Luz del Norte SpA [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 32,200                              
Ishikawa Credit Agreement [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency JPY                              
Long-term debt, gross $ 215,879 157,834                            
Ishikawa Credit Agreement [Member] | Mizuho Bank [Member] | FS Japan Project 12 GK [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 215,900 157,800                            
Line of Credit Facility, Current Borrowing Capacity                         $ 233,900 ¥ 27.3    
Japan Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency JPY                              
Long-term debt, gross $ 1,678 0                            
Japan Credit Facility [Member] | Mizuho Bank [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis 1-month TIBOR plus 0.55%                              
Debt Instrument, Basis Spread on Variable Rate 0.55%                              
Japan Credit Facility [Member] | Mizuho Bank [Member] | First Solar Japan GK [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 1,700 0                            
Line of Credit Facility, Current Borrowing Capacity                             $ 33,400 ¥ 4.0
Tochigi Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency JPY                              
Long-term debt, gross $ 37,304 25,468                            
Tochigi Credit Facility [Member] | Mizuho Bank [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis 3-month TIBOR plus 1.0%                              
Debt Instrument, Basis Spread on Variable Rate 1.00%                              
Tochigi Credit Facility [Member] | Mizuho Bank [Member] | First Solar Japan GK [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 37,300 25,500                            
Line of Credit Facility, Current Borrowing Capacity                     $ 62,200 ¥ 7.0        
Anamizu Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency JPY                              
Long-term debt, gross $ 12,138 0                            
Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member] | FS Japan Project 31 GK [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross 12,100                              
Line of Credit Facility, Current Borrowing Capacity $ 70,800     ¥ 7.7                        
Anantapur Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency INR                              
Long-term debt, gross $ 15,123 16,101                            
Anantapur Credit Facility [Member] | J.P. Morgan Securities India Private Limited [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis INR overnight indexed swap rate plus 1.5%                              
Debt Instrument, Basis Spread on Variable Rate 1.50%                              
Anantapur Credit Facility [Member] | J.P. Morgan Securities India Private Limited [Member] | Anantapur Solar Parks Private Limited [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 15,100 16,100                            
Line of Credit Facility, Current Borrowing Capacity                 $ 18,400 ₨ 1.2            
Tungabhadra Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency INR                              
Long-term debt, gross $ 12,753 13,934                            
Tungabhadra Credit Facility [Member] | J.P. Morgan Securities India Private Limited [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis INR overnight indexed swap rate plus 1.5%                              
Debt Instrument, Basis Spread on Variable Rate 1.50%                              
Tungabhadra Credit Facility [Member] | J.P. Morgan Securities India Private Limited [Member] | Tungabhadra Solar Parks Private Limited [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross $ 12,800 13,900                            
Line of Credit Facility, Current Borrowing Capacity                 $ 15,300 ₨ 1.0            
Beryl Credit Facility [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Currency AUD                              
Long-term debt, gross $ 0 76,971                            
Beryl Credit Facility [Member] | MUFG Bank, Ltd.; Société Générale, Hong Kong Branch; and Mizuho Bank, Ltd. [Member] | FS NSW Project No 1 Finco Pty Ltd [Member]                                
Long-term Debt [Abstract]                                
Long-term debt, gross   77,000     $ 88,000                      
Line of Credit Facility, Current Borrowing Capacity   96,100       $ 136.4 $ 108,100 $ 146.4                
Senior Loan Facility [Member] | Ishikawa Credit Agreement [Member] | Mizuho Bank [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis Senior loan facility at 6-month TIBOR plus 0.75% (2)                              
Debt Instrument, Basis Spread on Variable Rate 0.75%                              
Senior Loan Facility [Member] | Ishikawa Credit Agreement [Member] | Mizuho Bank [Member] | FS Japan Project 12 GK [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity                         205,600 24.0    
Consumption Tax Facility [Member] | Ishikawa Credit Agreement [Member] | Mizuho Bank [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis Consumption tax facility at 3-month TIBOR plus 0.5%                              
Debt Instrument, Basis Spread on Variable Rate 0.50%                              
Consumption Tax Facility [Member] | Ishikawa Credit Agreement [Member] | Mizuho Bank [Member] | FS Japan Project 12 GK [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity                         18,000 2.1    
Consumption Tax Facility [Member] | Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis Consumption tax facility at 3-month TIBOR plus 0.5%                              
Debt Instrument, Basis Spread on Variable Rate 0.50%                              
Consumption Tax Facility [Member] | Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member] | FS Japan Project 31 GK [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity $ 6,500     0.7                        
Construction Loans [Member] | Beryl Credit Facility [Member] | MUFG Bank, Ltd.; Société Générale, Hong Kong Branch; and Mizuho Bank, Ltd. [Member] | FS NSW Project No 1 Finco Pty Ltd [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity   88,400       125.4                    
Goods and Service Tax Facility [Member] | Beryl Credit Facility [Member] | MUFG Bank, Ltd.; Société Générale, Hong Kong Branch; and Mizuho Bank, Ltd. [Member] | FS NSW Project No 1 Finco Pty Ltd [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity   4,900       7.0                    
Letter of Credit Facility [Member] | Ishikawa Credit Agreement [Member] | Mizuho Bank [Member] | FS Japan Project 12 GK [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity                         $ 10,300 ¥ 1.2    
Letter of Credit Facility [Member] | Beryl Credit Facility [Member] | MUFG Bank, Ltd.; Société Générale, Hong Kong Branch; and Mizuho Bank, Ltd. [Member] | FS NSW Project No 1 Finco Pty Ltd [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity   $ 2,800       $ 4.0                    
Term Loan Facility [Member] | Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis Term loan facility at 6-month TIBOR plus 0.70% (2)                              
Debt Instrument, Basis Spread on Variable Rate 0.70%                              
Term Loan Facility [Member] | Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member] | FS Japan Project 31 GK [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity $ 61,000     6.6                        
Debt Service Reserve Facility [Member] | Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member]                                
Long-term Debt [Abstract]                                
Debt Instrument, Description of Variable Rate Basis Debt service reserve facility at 6-month TIBOR plus 1.20%                              
Debt Instrument, Basis Spread on Variable Rate 1.20%                              
Debt Service Reserve Facility [Member] | Anamizu Credit Facility [Member] | MUFG Bank, Ltd.; The Iyo Bank, Ltd.; The Hachijuni Bank, Ltd.; The Hyakugo Bank, Ltd.; and The Yamagata Bank, Ltd. [Member] | FS Japan Project 31 GK [Member]                                
Long-term Debt [Abstract]                                
Line of Credit Facility, Current Borrowing Capacity $ 3,300     ¥ 0.4                        
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Commercial Commitments - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Bank Guarantees and Letters of Credit $ 9.8  
Surety Bonds 89.8  
Surety Bond Capacity 626.4  
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Letter of Credit Sub-Limit 400.0  
Letters of Credit Outstanding, Amount 39.3 $ 66.0
Letters of Credit, Remaining Borrowing Capacity 360.7  
Bilateral Facilities [Member]    
Debt Instrument [Line Items]    
Letters of Credit Outstanding, Amount 156.9  
Letters of Credit Outstanding, Secured by Cash 31.8  
Bilateral Facilities, Bank Guarantees and Letter of Credit [Member]    
Debt Instrument [Line Items]    
Letters of Credit, Remaining Borrowing Capacity $ 608.5  
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Purchase Commitments
$ in Billions
Dec. 31, 2019
USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]  
Unrecorded Unconditional Purchase Obligation $ 1.4
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months 0.9
Capital Addition Purchase Commitments [Member]  
Unrecorded Unconditional Purchase Obligation [Line Items]  
Unrecorded Unconditional Purchase Obligation $ 0.4
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Product Warranties - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]      
Product warranty liability, beginning of period $ 220,692 $ 224,274 $ 252,408
Accruals for new warranties issued 17,327 14,132 23,313
Settlements (22,540) (11,851) (11,329)
Changes in estimate of product warranty liability (85,682) (5,863) (40,118)
Product warranty liability, end of period 129,797 220,692 224,274
Current portion of warranty liability 20,291 27,657 28,767
Noncurrent portion of warranty liability 109,506 $ 193,035 195,507
Reduction in the estimated replacement cost of modules $ 80,000   $ 31,300
Estimated rate of return for module warranty 1.00%    
Percentage Point Change in Estimated Rate of Return of Module Warranty 1.00%    
Estimated Change in Module Warranty from Sensitivity Analysis $ 89,800    
Percentage Point Change in Estimated Rate of Return of Balance of Systems Warranty 1.00%    
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Performance Guarantees - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Energy Performance Testing Liability $ 4.6 $ 0.4
Effective Availability Guarantee Liability $ 0.6  
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Indemnifications - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Indemnification liabilities, current $ 0.8  
Indemnification liabilities, noncurrent 4.2 $ 3.0
Indemnification liabilities, maximum exposure 152.8  
Indemnification liabilities, potential insurance recoveries $ 84.9  
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Contingent Consideration - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Project Acquisition, Contingent Consideration Liability, Current $ 2.4 $ 0.7
Project Acquisition, Contingent Consideration Liability, Noncurrent $ 4.5 $ 2.3
v3.19.3.a.u2
Note 14. Commitments and Contingencies (Details) - Legal Proceedings - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Estimated Litigation Liability [Line Items]    
Accrued litigation $ 363,000 $ 0
Class Action [Member]    
Estimated Litigation Liability [Line Items]    
Accrued litigation 350,000  
Opt-Out Action [Member]    
Estimated Litigation Liability [Line Items]    
Accrued litigation $ 13,000  
v3.19.3.a.u2
Note 15. Revenue from Contracts with Customers (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Projects
Dec. 31, 2018
USD ($)
Projects
Dec. 31, 2017
USD ($)
Projects
Revenue from Contracts with Customers [Line Items]      
Net sales $ 3,063,117 $ 2,244,044 $ 2,941,324
Project Change in Estimate Disclosure Threshold $ 1,000    
Number of Projects with Changes in Estimates | Projects 3 24 5
(Decrease) Increase in Revenue from Net Changes in Transaction Price $ (3,642) $ 63,361 $ 3,579
(Decrease) Increase in Revenue from Net Changes in Input Cost Estimates (23,103) 1,548 5,047
Net (Decrease) Increase in Revenue from Net Changes in Estimates $ (26,745) $ 64,909 $ 8,626
Net Change in Estimate as a Percentage of Aggregate Revenue (4.60%) 0.60% 0.60%
Increase in Revenue from Net Changes in Indirect Tax Estimates $ 54,600    
Accounts receivable, unbilled 162,057 $ 441,666  
Retainage 21,416 16,500  
Accounts receivable, unbilled and retainage 183,473 458,166  
Contract Asset, Net Change $ (274,693)    
Contract Asset, Percent Change (60.00%)    
Deferred revenue $ 394,655 177,769  
Contract Liability, Net Change $ 216,886    
Contract Liability, Percent Change 122.00%    
Deferred revenue, noncurrent $ 71,438 48,014  
Sales Revenue Net, from Beginning Contract Liability 117,700 128,700  
Solar Modules [Member]      
Revenue from Contracts with Customers [Line Items]      
Net sales 1,460,116 502,001 $ 806,398
Remaining Performance Obligation, Transaction Price 3,900,000    
Solar Power Systems [Member]      
Revenue from Contracts with Customers [Line Items]      
Net sales 1,148,856 1,244,175 1,927,122
Remaining Performance Obligation, Transaction Price $ 116,000    
Solar Power Systems [Member] | GA Solar 4 [Member]      
Revenue from Contracts with Customers [Line Items]      
Remaining Performance Obligation, Percent of Revenue Recognized 67.00%    
Solar Power Systems [Member] | Sun Streams [Member]      
Revenue from Contracts with Customers [Line Items]      
Remaining Performance Obligation, Percent of Revenue Recognized 94.00%    
Solar Power Systems [Member] | Sunshine Valley [Member]      
Revenue from Contracts with Customers [Line Items]      
Remaining Performance Obligation, Percent of Revenue Recognized 96.00%    
Solar Power Systems [Member] | Seabrook [Member]      
Revenue from Contracts with Customers [Line Items]      
Remaining Performance Obligation, Percent of Revenue Recognized 94.00%    
Solar Power Systems [Member] | Japan (multiple locations) [Member]      
Revenue from Contracts with Customers [Line Items]      
Remaining Performance Obligation, Percent of Revenue Recognized 0.00%    
Solar Power Systems [Member] | Windhub A [Member]      
Revenue from Contracts with Customers [Line Items]      
Remaining Performance Obligation, Percent of Revenue Recognized 96.00%    
EPC Services [Member]      
Revenue from Contracts with Customers [Line Items]      
Net sales $ 291,901 347,560 45,525
O&M Services [Member]      
Revenue from Contracts with Customers [Line Items]      
Net sales 107,705 103,186 101,024
Remaining Performance Obligation, Transaction Price $ 500,000    
Remaining Performance Obligation, Period of Recognition 9 years 2 months 12 days    
Energy Generation [Member]      
Revenue from Contracts with Customers [Line Items]      
Net sales $ 54,539 47,122 58,019
Module Plus [Member]      
Revenue from Contracts with Customers [Line Items]      
Net sales $ 0 $ 0 $ 3,236
v3.19.3.a.u2
Note 16. Stockholders' Equity (Details) - $ / shares
Dec. 31, 2019
Dec. 31, 2018
Class of Stock Disclosures [Abstract]    
Preferred Stock, Shares Authorized 30,000,000 30,000,000
Preferred Stock, Par Value $ 0.001 $ 0.001
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Common Stock, Shares Authorized 500,000,000 500,000,000
Common Stock, Par Value $ 0.001 $ 0.001
Common Stock, Shares Issued 105,448,921 104,885,261
Common Stock, Shares Outstanding 105,448,921 104,885,261
v3.19.3.a.u2
Note 17. Share-Based Compensation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-Based Compensation Expense $ 37,429 $ 34,154 $ 35,121
Share-based compensation, capitalized in inventory 1,200 1,800  
Share-based compensation, nonvested awards, total compensation cost not yet recognized $ 35,600    
Share-based compensation, unrecognized compensation costs on nonvested awards, weighted average period of recognition (in years) 1 year    
Share-based Compensation, Tax Benefit from Compensation Expense $ 9,600 9,900 6,200
Unrestricted stock [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-Based Compensation Expense 1,500 1,600 1,800
Cost of sales [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-Based Compensation Expense 7,541 6,422 6,809
Selling, general and administrative [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-Based Compensation Expense 23,741 21,646 22,165
Research and development [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-Based Compensation Expense 5,917 5,714 5,740
Production start-up [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-Based Compensation Expense $ 230 $ 372 $ 407
v3.19.3.a.u2
Note 17. Share-Based Compensation (Details) - RSUs - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restricted and performance stock units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Unvested restricted stock units at beginning of period (shares) 2,474,287    
Unvested restricted stock units at beginning of period (weighted average gant-date fair value) $ 45.63    
Restricted stock units granted (shares) 815,801    
Restricted stock units granted (weighted average grant-date fair value) $ 56.47 $ 67.44 $ 32.81
Restricted stock units vested (shares) (779,320)    
Restricted stock units vested (weighted average grant-date fair value) $ 42.56    
Restricted stock units forfeited (shares) (99,332)    
Restricted stock units forfeited (weighted average grant-date fair value) $ 49.36    
Unvested restricted stock units at end of period (shares) 2,411,436 2,474,287  
Unvested restricted stock units at end of period (weighted average grant-date fair value) $ 50.13 $ 45.63  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 40.8 $ 32.2 $ 14.1
Omnibus Incentive Compensation Plan 2015 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 2,524,342    
v3.19.3.a.u2
Note 17. Share-Based Compensation (Details) - Stock Awards - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-Based Compensation Expense $ 37,429 $ 34,154 $ 35,121
Unrestricted stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrestricted stock units granted (shares) 26,254 31,190 42,773
Share-Based Compensation Expense $ 1,500 $ 1,600 $ 1,800
v3.19.3.a.u2
Note 17. Share-Based Compensation (Details) - Stock Purchase Plan
1 Months Ended 3 Months Ended
Apr. 30, 2017
Mar. 31, 2017
Stock purchase plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date 4.00% 15.00%
v3.19.3.a.u2
Note 18. Income Taxes (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
May 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Investments, Owned, Federal Income Tax Note [Line Items]          
Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)     $ (2,300) $ 6,600  
Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense (Benefit)     (8,100) 401,500  
Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability   $ 76,700 $ 81,200    
Tax Cuts and Jobs Act, Measurement Period Adjustment, Increase (Decrease) in Effective Tax Rate, Percent     (0.092)    
(Loss) Income before Taxes and Equity in Earnings [Abstract]          
U.S. loss   (239,547) $ (49,353) (22,868)  
Non-U.S. income   119,418 162,500 224,983  
(Loss) income before taxes and equity in earnings   (120,129) 113,147 202,115  
Current Expense (Benefit) [Abstract]          
Federal   9,961 (44,267) 116,956  
State   3,890 (13,568) 3,009  
Foreign   41,080 8,788 11,099  
Total current expense (benefit)   54,931 (49,047) 131,064  
Deferred (Benefit) Expense [Abstract]          
Federal   (55,647) 31,530 226,570  
State   (6,737) 2,387 5,335  
Foreign   1,973 18,571 9,027  
Total deferred (benefit) expense   (60,411) 52,488 240,932  
Income tax (benefit) expense   (5,480) 3,441 371,996  
Effective Income Tax Rate Reconciliation, Percent [Abstract]          
Statutory income tax (benefit) expense ($)   $ (25,227) $ 23,761 $ 70,740  
Statutory income tax (benefit) expense (%)   21.00% 21.00% 35.00%  
Provisional effect of Tax Act ($)   $ 0 $ 0 $ 408,090  
Provisional effect of Tax Act (%)   0 0 2.019  
Changes in valuation allowance ($)   $ (5,735) $ 19,064 $ 9,534  
Changes in valuation allowance (%)   4.80% 16.80% 4.70%  
Foreign tax rate differential ($)   $ 17,195 $ 14,117 $ (22,048)  
Foreign tax rate differential (%)   (14.30%) 12.50% (10.90%)  
State tax, net of federal benefit ($)   $ (4,090) $ (7,580) $ 4,397  
State tax, net of federal benefit (%)   3.40% (6.70%) 2.20%  
Non-deductible expenses ($)   $ 11,119 $ 4,636 $ 2,703  
Non-deductible expenses (%)   (9.30%) 4.10% 1.30%  
Share-based compensation ($)   $ (1,594) $ (2,105) $ 1,161  
Share-based compensation (%)   1.30% (1.90%) 0.60%  
Change in tax contingency ($)   $ 7,096 $ (6,273) $ 959  
Change in tax contingency (%)   (5.90%) (5.50%) 0.50%  
Foreign dividend income ($)   $ 6,718 $ 16,570 $ 540  
Foreign dividend income (%)   (5.60%) 14.60% 0.30%  
Tax credits ($)   $ (1,996) $ (8,431) $ (18,445)  
Tax credits (%)   1.70% (7.50%) (9.10%)  
Return to provision adjustments ($)   $ 14,362 $ (25,307) $ (35,191)  
Return to provision adjustments (%)   (12.00%) (22.30%) (17.40%)  
Effect of tax holiday ($)   $ (26,834) $ (26,277) $ (46,643)  
Effect of tax holiday (%)   22.40% (23.20%) (23.10%)  
Other ($)   $ 3,506 $ 1,266 $ (3,801)  
Other (%)   (2.90%) 1.10% (1.90%)  
Reported income tax (benefit) expense (%)   4.60% 3.00% 184.10%  
Income Taxes Paid, Net   $ 34,700 $ 58,800 $ 1,200  
Deferred tax assets [Abstract]          
Net operating losses   165,669 108,149    
Accrued expenses   134,791 55,754    
Compensation   22,401 18,564    
Tax credits   13,127 0    
Long-term contracts   11,215 4,967    
Goodwill   5,557 9,223    
Inventory   4,020 4,079    
Equity in earnings   2,906 2,693    
Deferred expenses   2,177 2,165    
Property, plant and equipment   0 18,796    
Capitalized interest   0 2,948    
Other   20,143 17,373    
Deferred tax assets, gross   382,006 244,711    
Valuation allowance   (151,705) (159,546) $ (143,818) $ (123,936)
Deferred tax assets, net of valuation allowance   230,301 85,165    
Deferred tax liabilities [Abstract]          
Property, plant and equipment   (77,794) 0    
Investments in foreign subsidiaries   (5,554) (4,425)    
Acquisition accounting / basis difference   (5,356) (5,420)    
Restricted investments and derivatives   (4,330) (7,586)    
Capitalized interest   (2,199) 0    
Other   (10,790) (3,093)    
Deferred tax liabilities   (106,023) (20,524)    
Net deferred tax assets and liabilities   $ 124,278 $ 64,641    
Domestic Tax Authority [Member]          
Effective Income Tax Rate Reconciliation, Percent [Abstract]          
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability $ (42,100)        
v3.19.3.a.u2
Note 18. Income Taxes (Details) - Valuation Allowance - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reconciliation Of Valuation Allowance [Roll Forward]      
Valuation allowance, beginning of year $ 159,546 $ 143,818 $ 123,936
Additions 9,161 29,359 27,591
Reversals (17,002) (13,631) (7,709)
Valuation allowance, end of year 151,705 159,546 $ 143,818
Valuation Allowance, Deferred Tax Asset, Change in Amount $ (7,800)    
Federal Net Operating Loss Deduction Limit, Percent 80.00%    
Domestic Tax Authority [Member]      
Reconciliation Of Valuation Allowance [Roll Forward]      
Operating Loss Carryforwards $ 218,300 10,300  
State and Local Jurisdiction [Member]      
Reconciliation Of Valuation Allowance [Roll Forward]      
Operating Loss Carryforwards 205,600 $ 72,900  
Foreign Tax Credit Carryforward [Member]      
Reconciliation Of Valuation Allowance [Roll Forward]      
Tax Credit Carryforward, Amount 11,800    
Research Tax Credit Carryforward [Member]      
Reconciliation Of Valuation Allowance [Roll Forward]      
Tax Credit Carryforward, Amount $ 2,900    
v3.19.3.a.u2
Note 18. Income Taxes (Details) - Uncertainties - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized tax benefits, beginning of year $ 72,193 $ 84,173 $ 89,256
Increases related to prior year tax positions 800 0 3,827
Decreases related to prior year tax positions 0 (2,979) 0
Decreases from lapse in statute of limitations (1,539) (10,704) (11,840)
Decreases relating to settlements with authorities 0 0 (2,494)
Increases related to current tax positions 715 1,703 5,424
Unrecognized tax benefits, end of year 72,169 72,193 84,173
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 69,800    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 7,900 $ 5,300 5,500
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 58,600    
Germany      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Tax Adjustments, Settlements, and Unusual Provisions     $ 2,500
Australia      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Open Tax Years 2014 - 2018    
Japan      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Open Tax Years 2014 - 2018    
Malaysia      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Open Tax Years 2014 - 2018    
United States      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Open Tax Years 2008 - 2009; 2015 - 2018    
v3.19.3.a.u2
Note 19. Net (Loss) Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Earnings Per Share [Abstract]      
Net (loss) income $ (114,933) $ 144,326 $ (165,615)
Weighted-average common shares outstanding 105,310 104,745 104,328
Effect of restricted and performance stock units and stock purchase plan shares 0 1,368 0
Weighted-average shares used in computing diluted net (loss) income per share 105,310 106,113 104,328
Net income (loss) per share, basic $ (1.09) $ 1.38 $ (1.59)
Net income (loss) per share, diluted $ (1.09) $ 1.36 $ (1.59)
Anti-dilutive shares 868 299 1,021
v3.19.3.a.u2
Note 20. Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Stockholders' equity, beginning balance $ 5,212,403 $ 5,098,697 $ 5,218,349
Amounts reclassified from accumulated other comprehensive (loss) income (43,016) (48,593) 140
Net other comprehensive loss (24,868) (56,725) 12,166
Stockholders' equity, ending balance 5,096,767 5,212,403 5,098,697
Other income, net 17,545 39,737 23,965
Net sales 3,063,117 2,244,044 2,941,324
Cost of sales 2,513,905 1,851,867 2,392,377
Foreign currency income (loss), net 2,291 (570) (9,640)
Income (loss) before taxes and equity in earnings (120,129) 113,147 202,115
Total amount reclassified 43,016 48,593 (140)
Foreign Currency Translation Adjustment [Member]      
Stockholders' equity, beginning balance (66,380)    
Other comprehensive (loss) income before reclassifications (5,859)    
Amounts reclassified from accumulated other comprehensive (loss) income (1,190)    
Net tax effect 0    
Net other comprehensive loss (7,049)    
Stockholders' equity, ending balance (73,429) (66,380)  
Total amount reclassified 1,190    
Foreign Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Cost of sales 1,190 0 0
Unrealized Gain (Loss) on Marketable Securities and Restricted Investments [Member]      
Stockholders' equity, beginning balance 10,641    
Other comprehensive (loss) income before reclassifications 21,905    
Amounts reclassified from accumulated other comprehensive (loss) income (40,621)    
Net tax effect 3,046    
Net other comprehensive loss (15,670)    
Stockholders' equity, ending balance (5,029) 10,641  
Total amount reclassified 40,621    
Unrealized Gain (Loss) on Marketable Securities and Restricted Investments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Other income, net 40,621 55,405 49
Unrealized Gain (Loss) on Derivative Instruments [Member]      
Stockholders' equity, beginning balance 1,273    
Other comprehensive (loss) income before reclassifications (1,086)    
Amounts reclassified from accumulated other comprehensive (loss) income (1,205)    
Net tax effect 142    
Net other comprehensive loss (2,149)    
Stockholders' equity, ending balance (876) 1,273  
Total amount reclassified 1,205    
Unrealized Gain (Loss) on Derivative Instruments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Income (loss) before taxes and equity in earnings 1,205 (6,812) (189)
Unrealized Gain (Loss) on Derivative Instruments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign exchange forward contracts [Member]      
Other income, net 0 546 (189)
Net sales 124 (1,698) 0
Cost of sales 1,081 (212) 0
Foreign currency income (loss), net 0 (5,448) 0
Total, Accumulated Other Comprehensive (Loss) Income [Member]      
Stockholders' equity, beginning balance (54,466) 2,259 (9,907)
Other comprehensive (loss) income before reclassifications 14,960    
Amounts reclassified from accumulated other comprehensive (loss) income (43,016)    
Net tax effect 3,188    
Net other comprehensive loss (24,868) (56,725) 12,166
Stockholders' equity, ending balance (79,334) $ (54,466) $ 2,259
Total amount reclassified $ 43,016    
v3.19.3.a.u2
Note 21. Segment and Geographical Information (Details) - Select Items for Reportable Segments
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
segments
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | segments 2    
Net sales $ 3,063,117 $ 2,244,044 $ 2,941,324
Gross profit (loss) 549,212 392,177 548,947
Depreciation and amortization expense 183,701 104,444 91,899
Goodwill 14,462 14,462 14,462
Modules segment [Member]      
Segment Reporting Information [Line Items]      
Net sales 1,460,116 502,001 806,398
Gross profit (loss) 290,079 (50,467) 112,338
Depreciation and amortization expense 161,993 85,797 67,597
Goodwill 14,462 14,462  
Systems segment [Member]      
Segment Reporting Information [Line Items]      
Net sales 1,603,001 1,742,043 2,134,926
Gross profit (loss) 259,133 442,644 436,609
Depreciation and amortization expense 21,708 18,647 $ 24,302
Goodwill $ 0 $ 0  
v3.19.3.a.u2
Note 21. Segment and Geographical Information (Details) - Revenues and Long-Lived Assets by Geographic Region - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 3,063,117 $ 2,244,044 $ 2,941,324
Long-lived assets 3,140,957 2,563,280  
United States      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 2,659,940 1,478,034 2,273,774
Long-lived assets 1,077,593 659,854  
Australia      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 138,327 153,163 108,643
France      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 88,816 28,796 62,953
Japan      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 34,234 234,814 4,405
Long-lived assets 416,375 319,571  
India      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 7,451 232,130 141,491
Turkey      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 426 19,354 124,433
Vietnam      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Long-lived assets 699,841 702,071  
Malaysia      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Long-lived assets 637,322 532,418  
Chile      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Long-lived assets 234,470 240,495  
All other foreign countries [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 133,923 97,753 $ 225,625
Long-lived assets $ 75,356 $ 108,871  
v3.19.3.a.u2
Note 22. Concentrations of Risks (Details) - Customer Concentration Risk [Member] - Net sales [Member]
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Customer One [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 16.00%    
Customer Two [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage   16.00%  
Customer Three [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage   13.00% 47.00%
Minimum [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage, disclosure threshold 10.00%    
Maximum [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage, disclosure threshold 10.00%