INFINERA CORP, 10-Q filed on 11/8/2018
Quarterly Report
v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 29, 2018
Nov. 01, 2018
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 29, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol INFN  
Entity Registrant Name INFINERA CORP  
Entity Central Index Key 0001138639  
Current Fiscal Year End Date --12-29  
Entity Filer Category Large Accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Common Stock, Shares Outstanding (in shares)   174,986,726
v3.10.0.1
CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 30, 2017
Current assets:    
Cash and cash equivalents $ 416,406 $ 116,345
Short-term investments 30,480 147,596
Accounts receivable, net of allowance for doubtful accounts of $866 in 2018 and $892 in 2017 153,901 126,152
Inventory 211,945 214,704
Prepaid expenses and other current assets 43,756 43,140
Total current assets 856,488 647,937
Property, plant and equipment, net 131,923 135,942
Intangible assets 66,144 92,188
Goodwill 180,986 195,615
Long-term investments 850 36,129
Other non-current assets 11,007 9,859
Total assets 1,247,398 1,117,670
Current liabilities:    
Accounts payable 83,249 58,124
Accrued expenses 43,324 39,782
Accrued compensation and related benefits 35,738 45,751
Short-term debt, net 0 144,928
Accrued warranty 13,475 13,670
Deferred revenue 42,724 72,421
Total current liabilities 218,510 374,676
Long-term debt, net 262,580 0
Accrued warranty, non-current 17,007 17,239
Deferred revenue, non-current 15,790 22,502
Deferred tax liability 14,977 21,609
Other long-term liabilities 14,217 16,279
Commitments and contingencies (Note 16)
Stockholders’ equity:    
Preferred stock, $0.001 par value Authorized shares – 25,000 and no shares issued and outstanding 0 0
Common stock, $0.001 par value Authorized shares – 500,000 as of September 29, 2018 and December 30, 2017 Issued and outstanding shares – 153,988 as of September 29, 2018 and 149,471 as of December 30, 2017 154 149
Additional paid-in capital 1,547,451 1,417,043
Accumulated other comprehensive income (loss) (19,785) 6,254
Accumulated deficit (823,503) (758,081)
Total stockholders' equity 704,317 665,365
Total liabilities and stockholders’ equity $ 1,247,398 $ 1,117,670
v3.10.0.1
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 30, 2017
Statement of Financial Position [Abstract]    
Net of allowance for doubtful accounts $ 866 $ 892
Preferred stock, par value (in usd per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 25,000,000 25,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in usd per share) $ 0.001 $ 0.001
Common stock, authorized shares (in shares) 500,000,000 500,000,000
Common stock, shares issued (in shares) 153,988,000 149,471,000
Common stock, shares outstanding (in shares) 153,988,000 149,471,000
v3.10.0.1
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Revenue:        
Total revenue $ 200,413 $ 192,580 $ 611,321 $ 544,923
Cost of revenue:        
Restructuring and related 7 0 50 0
Total cost of revenue 130,234 124,754 374,669 348,209
Gross profit 70,179 67,826 236,652 196,714
Operating expenses:        
Research and development 50,658 56,616 165,497 169,076
Sales and marketing 26,073 27,824 86,286 86,662
General and administrative 18,415 17,634 54,616 53,556
Restructuring and related 191 0 1,708 0
Total operating expenses 95,337 102,074 308,107 309,294
Loss from operations (25,158) (34,248) (71,455) (112,580)
Other income (expense), net:        
Interest income 292 857 1,818 2,470
Interest expense (2,160) (3,549) (8,344) (10,408)
Other gain (loss), net (5,449) (80) (3,514) (462)
Total other income (expense), net (7,317) (2,772) (10,040) (8,400)
Loss before income taxes (32,475) (37,020) (81,495) (120,980)
Provision for (benefit from) income taxes 135 211 (667) (459)
Net loss $ (32,610) $ (37,231) $ (80,828) $ (120,521)
Net loss per common share:        
Basic (in usd per share) $ (0.21) $ (0.25) $ (0.53) $ (0.82)
Diluted (in usd per share) $ (0.21) $ (0.25) $ (0.53) $ (0.82)
Weighted average shares used in computing net loss per common share:        
Basic (in shares) 153,492 148,777 152,028 147,367
Diluted (in shares) 153,492 148,777 152,028 147,367
Product        
Revenue:        
Revenue $ 167,030 $ 159,579 $ 513,947 $ 449,992
Cost of revenue:        
Cost of revenue 117,152 111,803 335,674 311,437
Services        
Revenue:        
Revenue 33,383 33,001 97,374 94,931
Cost of revenue:        
Cost of revenue $ 13,075 $ 12,951 $ 38,945 $ 36,772
v3.10.0.1
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Statement of Comprehensive Income [Abstract]        
Net loss $ (32,610) $ (37,231) $ (80,828) $ (120,521)
Other comprehensive income (loss), net of tax:        
Change in unrealized gain (loss) on available-for-sale investments 175 87 274 27
Foreign currency translation adjustment 2,069 12,614 (26,242) 37,257
Tax related to available-for-sale investment (45) (11) (71) (11)
Net change in accumulated other comprehensive income (loss) 2,199 12,690 (26,039) 37,273
Comprehensive loss $ (30,411) $ (24,541) $ (106,867) $ (83,248)
v3.10.0.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 30, 2017
Sep. 29, 2018
Dec. 30, 2017
Sep. 30, 2017
Cash Flows from Operating Activities:                
Net loss $ (32,610) $ (37,231) $ (80,828) $ (120,521)        
Adjustments to reconcile net loss to net cash used in operating activities:                
Depreciation and amortization     50,339 49,391        
Non-cash restructuring and related credits     (81) 0        
Amortization of debt discount and issuance costs     6,752 8,399        
Realized gain on sale of non-marketable equity investments     (1,050) 0        
Impairment on non-marketable equity investment 4,300   4,260 0 $ 1,900      
Stock-based compensation expense     34,394 35,424        
Other loss     214 622        
Changes in assets and liabilities:                
Accounts receivable     (27,728) 15,078        
Inventory     (926) (9,601)        
Prepaid expenses and other assets     294 (15,366)        
Accounts payable     26,254 25,840        
Accrued liabilities and other expenses     (30,754) (18,757)        
Deferred revenue     (8,669) 8,575        
Net cash used in operating activities     (27,529) (20,916)        
Cash Flows from Investing Activities:                
Purchase of available-for-sale investments     (2,986) (122,249)        
Proceeds from sales of available-for-sale investments     53,039 10,531        
Proceeds from maturities of investments     98,112 111,970        
Proceeds from sale of non-marketable equity investment     1,050 0        
Purchase of property and equipment     (27,027) (50,247)        
Net cash provided by (used in) investing activities     122,188 (49,995)        
Cash Flows from Financing Activities:                
Proceeds from issuance of debt, net     391,431          
Purchase of capped call transactions     (48,880) 0        
Repayment of debt     (150,000) 0        
Acquisition of noncontrolling interest     0 (471)        
Proceeds from issuance of common stock     17,693 17,991        
Minimum tax withholding paid on behalf of employees for net share settlement     (1,093) (963)        
Net cash provided by financing activities     209,151 16,557        
Effect of exchange rate changes on cash and restricted cash     (3,054) 3,855        
Net change in cash, cash equivalents and restricted cash     300,756 (50,499)        
Cash, cash equivalents and restricted cash at beginning of period     121,486 177,580 177,580      
Cash, cash equivalents and restricted cash at end of period 422,242 [1] 127,081 [1] 422,242 [1] 127,081 [1] 121,486      
Supplemental disclosures of cash flow information:                
Cash paid for income taxes, net of refunds     3,320 4,159        
Cash paid for interest     1,332 1,317        
Supplemental schedule of non-cash investing activities:                
Transfer of inventory to fixed assets     1,165 3,110        
Restricted Cash and Cash Equivalents [Abstract]                
Cash and cash equivalents           $ 416,406 $ 116,345 $ 122,042
Short-term restricted cash           402   740
Long-term restricted cash           5,434   4,299
Total cash, cash equivalents and restricted cash $ 422,242 [1] $ 127,081 [1] $ 121,486 $ 177,580 $ 177,580 $ 422,242 [1] $ 121,486 $ 127,081 [1]
[1] Reconciliation of cash, cash equivalents and restricted cash to the condensed consolidated balance sheets: September 29, 2018 September 30, 2017 (In thousands)Cash and cash equivalents$416,406 $122,042Short-term restricted cash402 740Long-term restricted cash5,434 4,299Total cash, cash equivalents and restricted cash$422,242 $127,081
v3.10.0.1
Basis of Presentation and Significant Accounting Policies
9 Months Ended
Sep. 29, 2018
Accounting Policies [Abstract]  
Basis of Presentation and Significant Accounting Policies
Basis of Presentation and Significant Accounting Policies
Basis of Presentation
Infinera Corporation (the “Company”) prepared its interim condensed consolidated financial statements that accompany these notes in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), consistent in all material respects with those applied in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2017.
The Company has made certain estimates, assumptions and judgments that can affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated financial statements, as well as the reported amounts of revenue and expenses during the periods presented. Significant estimates, assumptions and judgments made by management include revenue recognition, stock-based compensation, inventory valuation, accrued warranty, business combinations, fair value measurement of investments and accounting for income taxes. Other less significant estimates, assumptions and judgments made by management include allowances for sales returns, allowances for doubtful accounts, useful life of intangible assets, and property, plant and equipment. Management believes that the estimates and judgments upon which they rely are reasonable based upon information available to them at the time that these estimates and judgments are made. To the extent there are material differences between these estimates and actual results, the Company’s condensed consolidated financial statements will be affected.
The interim financial information is unaudited, but reflects all adjustments that are, in management’s opinion, necessary to provide a fair presentation of results for the interim periods presented. All adjustments are of a normal recurring nature. The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
This interim information should be read in conjunction with the consolidated financial statements in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2017.
To date, a few of the Company’s customers have accounted for a significant portion of its revenue. For the three months ended September 29, 2018, two customers individually accounted for 17% and 14% of the Company's total revenue and for the corresponding period in 2017, two customers individually accounted for 16% and 12% of the Company's total revenue. For the nine months ended September 29, 2018, two customers individually accounted for 22% and 14% of the Company's total revenue and for the corresponding period in 2017, two customers individually accounted for 16% and 11% of the Company's total revenue.
There have been no material changes in the Company’s significant accounting policies for the nine months ended September 29, 2018 as compared to those disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2017, with the exception of the Company's revenue recognition policy. Effective December 31, 2017, the Company adopted Accounting Standards Update No. 2014-09, "Revenue from Contracts with Customers (Topic 606)” (“ASC 606”). See Note 3, “Revenue Recognition” to the Notes to Condensed Consolidated Financial Statements for discussion on the impact of the adoption of these standards on the Company's policy for revenue recognition.
The Company adopted Accounting Standards Update 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash” (“ASU 2016-18”), during the first quarter of fiscal 2018, using the retrospective transition approach. Restricted cash in the prior period has been included with cash and cash equivalents when reconciling the beginning and ending total amounts on the statement of cash flows for the nine months ended September 30, 2017, to conform to the current period presentation. The adoption of ASU 2016-18 did not have a material impact on the cash flow activity presented on the Company's condensed consolidated statement of cash flows.
v3.10.0.1
Recent Accounting Pronouncements
9 Months Ended
Sep. 29, 2018
Accounting Policies [Abstract]  
Recent Accounting Pronouncements
Recent Accounting Pronouncements
Accounting Pronouncements Recently Adopted
In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act" (“SAB 118”), which allows the Company to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. Since the U.S. Tax Cuts and Jobs Act (the “Tax Act”) was passed in December 2017, and ongoing guidance and accounting interpretation are expected over the next 12 months, the Company considers the accounting of the transition tax and deferred tax re-measurements to be incomplete due to the forthcoming guidance and the ongoing analysis of final year-end data and tax positions. The Company expects to complete the analysis within the measurement period in accordance with SAB 118. In March 2018, the Financial Accounting Standards Board (the “FASB”) issued ASU 2018-05, “Amendments to SEC Paragraphs Pursuant to SAB 118” and added such SEC guidance to Accounting Standards Codification 740, “Income Taxes, codified under the title: Income Tax Accounting Implications of the Tax Cuts and Jobs Act.”
In May 2017, the FASB issued Accounting Standards Update No. 2017-09, “Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting” (“ASU 2017-09”), which amends the scope of modification accounting for share-based payment arrangements, and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under Topic 718. The Company's adoption of ASU 2017-09 during its first quarter of 2018 had no impact on its condensed consolidated financial statements.
In November 2016, the FASB issued ASU 2016-18, which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. As such, restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and ending-of-period total amounts shown on the statement of cash flows. The Company adopted ASU 2016-18 during the first quarter of fiscal 2018, using the retrospective transition approach. See the condensed consolidated statements of cash flows for a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts on the condensed consolidated statements of cash flows.
In May 2016, the FASB issued Accounting Standards Update No. 2016-11, “Revenue Recognition (Topic 605) and Derivatives and Hedging (Topic 815): Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting (SEC Update)” (“ASU 2016-11”), which rescinds various standards codified as part of Topic 605, Revenue Recognition in relation to the future adoption of Topic 606. These rescissions include changes to topics pertaining to revenue and expense recognition for freight services in process, accounting for shipping and handling fees and costs, and accounting for consideration given by a vendor to a customer. The Company adopted ASU 2016-11 during the first quarter of 2018. See Note 3, “Revenue Recognition” to the Notes to Condensed Consolidated Financial Statements for more information.
In May 2014, the FASB issued ASC 606, which creates a single, joint revenue standard that is consistent across all industries and markets for companies that prepare their financial statements in accordance with U.S. GAAP. Under ASC 606, an entity is required to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration the entity expects to be entitled to receive in exchange for those goods or services. In August 2015, the FASB issued Accounting Standards update 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASC 606 by one year with early adoption permitted beginning after December 15, 2016. The updated standard is effective for interim and annual periods beginning after December 15, 2017. In April 2016, the FASB issued Accounting Standards Update No. 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing,” which clarifies the implementation guidance on identifying performance obligations and licensing. In May 2016, the FASB issued Accounting Standards Update No. 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients,” which amends the guidance on collectability, noncash consideration, presentation of sales tax and transition. In December 2016, the FASB issued Accounting Standards Update No. 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” to increase stakeholders' awareness of the proposals and to expedite improvements to ASC 606. ASC 606 also includes Subtopic 340-40, “Other Assets and Deferred Costs - Contracts with Customers,” which requires the deferral of incremental costs of obtaining a contract with a customer. Collectively, the Company refers to ASC 606 and Subtopic 340-40 as “ASC 606.” The Company adopted ASC 606 as of December 31, 2017 using the modified retrospective transition method applied to those contracts that were not completed as of December 31, 2017. See Note 3, “Revenue Recognition” to the Notes to Condensed Consolidated Financial Statements for more information.
In January 2016, the FASB issued Accounting Standards Update No. 2016-01, “Financial Instruments (Topic 825): Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which requires equity investments to be measured at fair value with changes in fair value recognized in the income statement and simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. The Company adopted ASU 2016-01 during its first quarter of 2018 and the adoption did not have a material impact on its condensed consolidated financial statements. See Note 4, “Fair Value Measurements” to the Notes to Condensed Consolidated Financial Statements for more information.
Accounting Pronouncements Not Yet Effective
In August 2018, the FASB issued Accounting Standards Update No. 2018-15 (“ASU 2018-15”), “Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract.” The update provides guidance for determining if a cloud computing arrangement is within the scope of internal-use software guidance, and would require capitalization of certain implementation costs. ASU 2018-15 is effective for the Company in its first quarter of 2020, with early adoption permitted. The Company is currently evaluating the impact the adoption of ASU 2018-15 will have on its consolidated financial statements.
In August 2018, the FASB issued Accounting Standards Update No. 2018-13 (“ASU 2018-13”), “Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” The update eliminates, adds, and modifies certain disclosure requirements for fair value measurements. ASU 2018-13 is effective for the Company in its first quarter of 2020 and early adoption is permitted of the entire standard or only the provisions that eliminate or modify disclosure requirements. The Company is currently evaluating the impact the adoption of ASU 2018-13 will have on its consolidated financial statements.
In June 2018, the FASB issued Accounting Standards Update No. 2018-07, “Improvements to Non-employee Share-Based Payment Accounting” (“ASU 2018-07”), which simplifies the accounting for share-based payments granted to non-employees for goods and services. Under ASU 2018-07, certain guidance on such payments to non-employees would be aligned with the requirements for share-based payments granted to employees. The guidance will be effective for the Company's first quarter of 2019 and early adoption is permitted. As the Company does not have material non-employee awards, it does not expect the adoption of ASU 2018-07 to have a material impact on its consolidated financial statements.
In January 2017, the FASB issued Accounting Standards Update No. 2017-04, “Simplifying the Test for Goodwill Impairment” (“ASU 2017-04”). The guidance eliminates Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts. ASU 2017-04 will be effective for the Company's annual or any interim goodwill impairment tests in its first quarter of fiscal 2020. The Company is currently evaluating the impact the adoption of ASU 2017-04 will have on its consolidated financial statements.
In June 2016, the FASB issued Accounting Standards Update No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”), which requires measurement and recognition of expected credit losses for financial assets held. This guidance is effective for the Company in its first quarter of fiscal 2020 and early adoption is permitted. The Company is currently evaluating the impact the adoption of ASU 2016-13 will have on its consolidated financial statements.
In February 2016, the FASB issued Accounting Standards Update 2016-02, “Leases (Topic 842)” (“ASU 2016-02”), which amends the existing accounting standards for leases. The new standard requires lessees to record a right-of-use asset and a corresponding lease liability on the balance sheet (with the exception of short-term leases). For lessees, leases will continue to be classified as either operating or financing in the income statement. This guidance is effective for the Company in its first quarter of fiscal 2019. ASU 2016-02 is required to be applied with a modified retrospective approach and requires application of the new standard at the beginning of the earliest comparative period presented. In July 2018, the FASB issued ASU 2018-11 “Leases (Topic 842): Targeted Improvements,” (“ASU 2018-11”), which provides lessees an additional (and optional) transition method to apply the new leasing standard to all open leases at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company is currently evaluating the impact the adoption of ASU 2016-02 and ASU 2018-11 will have on its consolidated financial statements and expects to have increases in the assets and liabilities of its consolidated balance sheets.
v3.10.0.1
Revenue Recognition
9 Months Ended
Sep. 29, 2018
Revenue from Contract with Customer [Abstract]  
Revenue Recognition
Revenue Recognition
Effective December 31, 2017, the Company adopted ASC 606, using the modified retrospective method applied to those contracts that were not completed as of December 31, 2017. Results for the reporting periods after December 31, 2017 are presented under ASC 606, while prior period amounts are not adjusted and continue to be reported in accordance with the Company’s historical accounting under Topic 605.
The Company recognizes revenue when control of the promised goods or services is transferred to its customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services.
The Company determines revenue recognition by applying the following five-step approach:
identification of the contract, or contracts, with a customer;
identification of the performance obligations in the contract;
determination of the transaction price;
allocation of the transaction price to the performance obligations in the contract; and
recognition of revenue when, or as, the Company satisfies a performance obligation.
Many of the Company's product sales are sold in combination with installation and deployment services along with initial hardware and software support. The Company's product sales are also sold with spares management, on-site hardware replacement services, network operations management, software subscription services, extended hardware warranty and training. Initial software and hardware support services are generally delivered over a one-year period in connection with the initial purchase. Software warranty provides customers with maintenance releases during the warranty support period and hardware warranty provides replacement or repair of equipment that fails to perform in line with specifications. Software subscription services include software warranty and additionally provides customers with rights to receive unspecified software product upgrades released during the support period.
Spares management and on-site hardware replacement services include the replacement of defective units at customer sites in accordance with specified service level agreements. Network operations management includes the day-to-day operation of a customer's network. These services are generally delivered on an annual basis. The Company evaluates each promised good and service in a contract to determine whether it represents a distinct performance obligation or should be accounted for as a combined performance obligation.
Services revenue includes software subscription services, installation and deployment services, spares management, on-site hardware replacement services, network operations management, extended hardware warranty and training. Revenue from software subscription services, spares management, on-site hardware replacement services, network operations management and extended hardware warranty contracts is deferred and is recognized ratably over the contractual support period, which is generally one year, as services are provided over the course of the entire period. Revenue related to training and installation and deployment services is recognized upon completion of the services.
Contracts and customer purchase orders are generally used to determine the existence of an arrangement. In addition, shipping documents and customer acceptances, when applicable, are used to verify delivery and transfer of title. The Company typically satisfies its performance obligations upon shipment or delivery of product depending on the contractual terms. Payment terms to customers generally range from net 30 to 120 days from invoice, which are considered to be standard payment terms. The Company assesses its ability to collect from its customers based primarily on the creditworthiness and past payment history of the customer.
Customer product returns are approved on a case by case basis. Specific reserve provisions are made based upon a specific review of all the approved product returns where the customer has yet to return the products to generate the related sales return credit at the end of a period. Estimated sales returns are recorded as a reduction to revenue.
For sales to resellers, the same revenue recognition criteria apply. It is the Company’s practice to identify an end-user prior to shipment to a reseller. The Company does not offer rights of return or price protection to its resellers.
The Company reports revenue net of any required taxes collected from customers and remitted to government authorities, with the collected taxes recorded as current liabilities until remitted to the relevant government authority.
ASC 606 Adoption
The Company recorded a net reduction to the opening balance of its accumulated deficit of $15.4 million as of December 31, 2017 due to the cumulative impact of adopting ASC 606, with the impact primarily related to its services revenue. The impact to revenue for the three and nine months ended September 29, 2018 was an increase of $0.9 million and a decrease of $0.6 million, respectively, as a result of applying ASC 606. The details of the significant changes and quantitative impact of the Company’s adoption of ASC 606 are set out below.
Customer Purchase Commitments
The Company sells software licenses that provide customers the ability to purchase incremental bandwidth capacity on an already deployed piece of hardware. Infinera Instant Bandwidth (“IB”) enabled systems generally include a specific initial capacity and incremental capacity can be added by the purchase of IB licenses. IB licenses are considered distinct performance obligations because customers can provision additional transmission capacity on demand without the deployment of any incremental equipment.
Some contracts commit the customer to purchase incremental IB licenses within a specified time frame from the initial shipment of the IB enabled hardware. The time frame varies by customer and generally ranges between 12 to 24 months. If the customer does not purchase the additional capacity within the time frame as stated in the contract, the Company has the right to deliver and invoice such IB licenses to the customer. Under ASC 605, the additional incremental licenses were not included as an element of the initial arrangement because fees for the future purchase were not fixed. Under ASC 606, future committed licenses are considered to be additional performance obligations when a minimum purchase obligation is present, as evidenced by enforceable rights and obligations. As such, the Company is required to estimate the variable consideration for future IB licenses as part of determining the contract transaction price.
Contract Termination Rights
The contract term is determined on the basis of the period over which the parties to the contract have present enforceable rights and obligations. Certain customer contracts include a termination for convenience clause that allows the customer to terminate services without penalty, upon advance notification. For such contracts, the service duration is limited to the non-cancellable portion of the contract.
Variable Consideration
The consideration associated with customer contracts is generally fixed. Variable consideration includes discounts, rebates, refunds, credits, incentives, penalties, or other similar items. The amount of consideration that can vary is not a substantial portion of total consideration.
Variable consideration estimates are re-assessed at each reporting period until a final outcome is determined. The changes to the original transaction price due to a change in estimated variable consideration will be applied on a retrospective basis, with the adjustment recorded in the period in which the change occurs. Changes to variable consideration will be tracked and material changes disclosed.
Stand-alone Selling Price
Stand-alone selling price is the price at which an entity would sell a good or service on a stand-alone (or separate) basis at contract inception. Under the model, the observable price of a good or service sold separately provides the best evidence of stand-alone selling price. However, in certain situations, stand-alone selling prices will not be readily observable and the entity must estimate the stand-alone selling price.
When allocating on a relative stand-alone selling price basis, any discount provided in the contract is generally allocated proportionately to all of the performance obligations in the contract.
The majority of products and services offered by the Company have readily observable selling prices. For products and services that do not, the Company generally estimates stand-alone selling price using the market assessment approach based on expected selling price and adjusts those prices as necessary to reflect the Company’s costs and margins. As part of its stand-alone selling price policy, the Company reviews product pricing on a periodic basis to identify any significant changes and revise its expected selling price assumptions as appropriate.
Shipping and Handling
The Company treats shipping and handling activities as costs to fulfill the Company's promise to transfer products. Shipping and handling fees billed to customers are recorded as a reduction to cost of product.
Capitalization of Costs to Obtain a Contract
The Company has assessed the treatment of costs to obtain or fulfill a contract with a customer. Sales commissions have historically been expensed as incurred. Under ASC 606, the Company capitalizes sales commissions related to multi-year service contracts and amortizes the asset over the period of benefit, which is the service period. Sales commissions paid on contract renewals, including service contract renewals, is commensurate with the sales commissions paid on the initial contracts.
The Company elected ASC 606's practical expedient to expense sales commissions as incurred when the amortization period of the related contract term is one year or less. These costs are recorded as sales and marketing expense and included on the balance sheet as accrued compensation and related benefits until paid.
As of September 29, 2018, the ending balance of the Company’s capitalized costs to obtain a contract was $0.4 million. The Company's amortization expense was not material for the three and nine months ended September 29, 2018.
Disaggregation of Revenue
The following table presents the Company's revenue disaggregated by revenue source (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017(1)
 
September 29, 2018
 
September 30, 2017(1)
Product
$
167,030

 
$
159,579

 
$
513,947

 
$
449,992

Services
33,383

 
33,001

 
97,374

 
94,931

Total revenue
$
200,413

 
$
192,580

 
$
611,321

 
$
544,923


The Company sells its products directly to customers who are predominantly service providers and to channel partners that sell on our behalf. The following tables present the Company's revenue disaggregated by geography, based on the shipping address of the customer and by sales channel (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017(1)
 
September 29, 2018
 
September 30, 2017(1)
United States
$
98,097

 
$
113,617

 
$
348,109

 
$
325,593

Other Americas
6,775

 
5,636

 
16,867

 
14,642

Europe, Middle East and Africa
59,131

 
58,391

 
180,492

 
163,714

Asia Pacific
36,410

 
14,936

 
65,853

 
40,974

Total revenue
$
200,413

 
$
192,580

 
$
611,321

 
$
544,923


 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017(1)
 
September 29, 2018
 
September 30, 2017(1)
Direct
$
172,918

 
$
179,300

 
$
557,004

 
$
512,072

Indirect
27,495

 
13,280

 
54,317

 
32,851

Total revenue
$
200,413

 
$
192,580

 
$
611,321

 
$
544,923

 
 
 
(1)
Prior period amounts have not been adjusted under the modified retrospective method.
Contract Balances
The following table provides information about receivables, contract assets and contract liabilities from contracts with customers (in thousands):
 
September 29, 2018
 
At Adoption
Accounts receivable, net
$
153,901

 
$
135,245

Contract assets
$
6,469

 
$
2,825

Deferred revenue
$
58,516

 
$
75,458


Revenue recognized for the nine months ended September 29, 2018 that was included in the deferred revenue balance at the beginning of the reporting period was $35.2 million. Changes in the contract asset and liability balances during the three and nine months ended September 29, 2018 were not materially impacted by other factors.
Transaction Price Allocated to the Remaining Performance Obligation
The Company’s remaining performance obligations represent the transaction price allocated to performance obligations that are unsatisfied or partially satisfied, consisting of deferred revenue and backlog. The Company’s backlog represents purchase orders received from customers for future product shipments and services. The Company’s backlog is subject to future events that could cause the amount or timing of the related revenue to change, and, in certain cases, may be canceled without penalty. Orders in backlog may be fulfilled several quarters following receipt or may relate to multi-year support service obligations.
The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially satisfied) at the end of the reporting period (in thousands):
 
Remainder of 2018
 
2019
 
2020
 
2021
 
2022
 
Thereafter
 
Total
Revenue expected to be recognized in the future as of September 29, 2018
$
96,246

 
$
56,853

 
$
18,278

 
$
5,056

 
$
2,536

 
$
2,300

 
$
181,269


Impacts on Financial Statements
The following tables summarize the impact of adopting ASC 606 on the Company's condensed consolidated statement of operations for the three and nine months ended September 29, 2018 and the Company's condensed consolidated balance sheet as of December 31, 2017 (in thousands):
 
Three Months Ended September 29, 2018
 
As Reported
 
Adjustments
 
Balances Without Adoption of ASC 606
Income Statement
 
 
 
 
 
Revenue
 
 
 
 
 
Product
$
167,030

 
$
(1,845
)
 
$
165,185

Services
33,383

 
900

 
34,283

 
$
200,413

 
$
(945
)
 
$
199,468

Costs and expenses
 
 
 
 
 
Cost of revenue
$
130,234

 
$
1,356

 
$
131,590

Net loss
$
(32,610
)
 
$
(2,301
)
 
$
(34,911
)
Net loss per share - basic and diluted
$
(0.21
)
 
$
(0.02
)
 
$
(0.23
)
 
Nine Months Ended September 29, 2018
 
As Reported
 
Adjustments
 
Balances Without Adoption of ASC 606
Income Statement
 
 
 
 
 
Revenue
 
 
 
 
 
Product
$
513,947

 
$
(2,740
)
 
$
511,207

Services
97,374

 
3,380

 
100,754

 
$
611,321

 
$
640

 
$
611,961

Costs and expenses
 
 
 
 
 
Cost of revenue
$
374,669

 
$
2,596

 
$
377,265

Net loss
$
(80,828
)
 
$
(1,956
)
 
$
(82,784
)
Net loss per share - basic and diluted
$
(0.53
)
 
$
(0.01
)
 
$
(0.54
)
 
Balance at December 30, 2017
 
Adjustments due to ASC 606
 
As Adjusted Balance at December 31, 2017
Balance Sheet
 
 
 
 
 
Assets
 
 
 
 
 
Accounts receivable, net
$
126,152

 
$
9,093

 
$
135,245

Inventory
$
214,704

 
$
(239
)
 
$
214,465

Prepaid expenses and other assets
$
43,339

 
$
2,731

 
$
46,070

 
 
 
 
 
 
Liabilities
 
 
 
 
 
Accrued expenses
$
39,782

 
$
15,645

 
$
55,427

Deferred revenue
$
94,923

 
$
(19,465
)
 
$
75,458

 
 
 
 
 
 
Equity
 
 
 
 
 
Accumulated deficit
$
(758,081
)
 
$
15,406

 
$
(742,675
)
v3.10.0.1
Fair Value Measurements
9 Months Ended
Sep. 29, 2018
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements
Pursuant to the accounting guidance for fair value measurements and its subsequent updates, fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and it considers assumptions that market participants would use when pricing the asset or liability.
Valuation techniques used by the Company are based upon observable and unobservable inputs. Observable or market inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s assumptions about market participant assumptions based on the best information available. Observable inputs are the preferred source of values. These two types of inputs create the following fair value hierarchy:
Level 1
 
 
Quoted prices in active markets for identical assets or liabilities.
 
 
 
 
 
Level 2
 
 
Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
 
 
 
 
 
Level 3
 
 
Prices or valuations that require management inputs that are both significant to the fair value measurement and unobservable.
The Company measures its cash equivalents, foreign currency exchange forward contracts and marketable debt securities at fair value and classifies its investments in accordance with the fair value hierarchy. The Company’s money market funds and U.S. treasuries are classified within Level 1 of the fair value hierarchy and are valued based on quoted prices in active markets for identical securities.
The Company classifies its certificates of deposit, commercial paper, U.S. agency notes, corporate bonds and foreign currency exchange forward contracts within Level 2 of the fair value hierarchy as follows:
Certificates of Deposit
The Company reviews market pricing and other observable market inputs for the same or similar securities obtained from a number of industry standard data providers. In the event that a transaction is observed for the same or similar security in the marketplace, the price on that transaction reflects the market price and fair value on that day. In the absence of any observable market transactions for a particular security, the fair market value at period end would be equal to the par value. These inputs represent quoted prices for similar assets or these inputs have been derived from observable market data.
Commercial Paper
The Company reviews market pricing and other observable market inputs for the same or similar securities obtained from a number of industry standard data providers. In the event that a transaction is observed for the same or similar security in the marketplace, the price on that transaction reflects the market price and fair value on that day and then follows a revised accretion schedule to determine the fair market value at period end. In the absence of any observable market transactions for a particular security, the fair market value at period end is derived by accreting from the last observable market price. These inputs represent quoted prices for similar assets or these inputs have been derived from observable market data accreted mathematically to par.
U.S. Agency Notes
The Company reviews trading activity and pricing for its U.S. agency notes as of the measurement date. When sufficient quoted pricing for identical securities is not available, the Company uses market pricing and other observable market inputs for similar securities obtained from a number of industry standard data providers. These inputs represent quoted prices for similar assets in active markets or these inputs have been derived from observable market data.
Corporate Bonds
The Company reviews trading activity and pricing for each of the corporate bond securities in its portfolio as of the measurement date and determines if pricing data of sufficient frequency and volume in an active market exists in order to support Level 1 classification of these securities. If sufficient quoted pricing for identical securities is not available, the Company obtains market pricing and other observable market inputs for similar securities from a number of industry standard data providers. In instances where multiple prices exist for similar securities, these prices are used as inputs into a distribution-curve to determine the fair market value at period end.
Foreign Currency Exchange Forward Contracts
As discussed in Note 5, “Derivative Instruments” to the Notes to Condensed Consolidated Financial Statements, the Company mainly holds non-speculative foreign exchange forward contracts to hedge certain foreign currency exchange exposures. The Company estimates the fair values of derivatives based on quoted market prices or pricing models using current market rates. Where applicable, these models project future cash flows and discount the future 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.
The following tables represent the Company’s fair value hierarchy for its assets and liabilities measured at fair value on a recurring basis (in thousands): 
 
As of September 29, 2018
 
As of December 30, 2017
 
Fair Value Measured Using
 
Fair Value Measured Using
 
Level 1      
 
Level 2      
 
Total        
 
Level 1      
 
Level 2      
 
Total        
Assets
 
 
 
 
 
 
 
 
 
 
 
Money market funds
$
50

 
$

 
$
50

 
$
20,371

 
$

 
$
20,371

Certificates of deposit

 

 

 

 
240

 
240

Commercial paper

 

 

 

 
26,912

 
26,912

Corporate bonds

 
25,490

 
25,490

 

 
118,558

 
118,558

U.S. agency notes

 
2,994

 
2,994

 

 
5,480

 
5,480

U.S. treasuries
1,996

 

 
1,996

 
35,408

 

 
35,408

Foreign currency exchange forward contracts

 
5

 
5

 

 

 

Total assets
$
2,046

 
$
28,489

 
$
30,535

 
$
55,779

 
$
151,190

 
$
206,969

Liabilities
 
 
 
 
 
 
 
 
 
 
 
Foreign currency exchange forward contracts
$

 
$

 
$

 
$

 
$
(204
)
 
$
(204
)

During the three and nine months ended September 29, 2018, there were no transfers of assets or liabilities between Level 1 and Level 2 of the fair value hierarchy. As of September 29, 2018 and December 30, 2017, none of the Company’s existing securities were classified as Level 3 securities. The significant reduction in total assets in the above table relates to various investments that were sold in anticipation of the repayment of the Company's 2018 Notes in June 2018, as discussed in Note 11, “Convertible Senior Notes,” to the Notes to Condensed Consolidated Financial Statements.
The Company classifies the following assets and liabilities within Level 3 of the fair value hierarchy and applies fair value accounting on a nonrecurring basis when impairment indicators exist or upon the existence of observable fair values:
Equity Investment
In 2016, the Company invested $7.0 million in a privately-held company. As of September 29, 2018, and December 30, 2017, the Company's equity investment balance was $0.9 million and $5.1 million, respectively. As of December 30, 2017, the Company determined that its non-marketable equity securities were impaired, resulting in an impairment charge of $1.9 million to adjust the carrying value to estimated fair value. During the three months ended September 29, 2018, the Company recorded an additional impairment charge of $4.3 million to adjust the carrying value to estimated fair value.
               Beginning the first quarter of 2018, the Company adopted ASU 2016-01, which requires equity investments to be measured at fair value with changes in fair value recognized in net income. As a result of adopting this new standard, the Company's non-marketable equity securities formerly classified as cost-method investments are measured and recorded using the measurement alternative. Equity securities measured and recorded using the measurement alternative are recorded at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes. Adjustments resulting from impairments and qualifying observable price changes are recorded in other income (expense), net, in the accompanying condensed consolidated statements of operations. No initial adoption adjustment was recorded for these instruments since the standard was required to be applied prospectively for securities measured using the measurement alternative.
The Company regularly evaluates the carrying value of its equity investment for impairment. When a qualitative assessment indicates that impairment exists, the Company measures the investment at fair value.
Facilities-related Charges
In the fourth quarter of 2017, the Company implemented a plan to restructure its worldwide operations (the “2017 Restructuring Plan”). As a result of the 2017 Restructuring Plan, the Company calculated the fair value of its facilities-related charges of $7.3 million, based on estimated future discounted cash flows and unobservable inputs, which included the amount and timing of estimated sublease rental receipts that the Company could reasonably obtain over the remaining lease term and the discount rate. During the first half of 2018, the Company revised the estimates to its facilities-related accruals. See Note 8, “Restructuring and Related Costs” to the Notes to Condensed Consolidated Financial Statements for more information.
Cash, cash equivalents and investments were as follows (in thousands): 
 
September 29, 2018
 
Adjusted
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
Cash
$
416,356

 
$

 
$

 
$
416,356

Money market funds
50

 

 

 
50

Total cash and cash equivalents
$
416,406

 
$

 
$

 
$
416,406

Corporate bonds
25,624

 

 
(134
)
 
25,490

U.S. agency notes
3,000

 

 
(6
)
 
2,994

U.S. treasuries
2,000

 

 
(4
)
 
1,996

Total short-term investments
$
30,624

 
$

 
$
(144
)
 
$
30,480

Total cash, cash equivalents and investments
$
447,030

 
$

 
$
(144
)
 
$
446,886


 
December 30, 2017
 
Adjusted
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
Cash
$
87,991

 
$

 
$

 
$
87,991

Money market funds
20,371

 

 

 
20,371

U.S. treasuries
7,984

 

 
(1
)
 
7,983

Total cash and cash equivalents
$
116,346

 
$

 
$
(1
)
 
$
116,345

Certificates of deposit
240

 

 

 
240

Commercial paper
26,924

 

 
(12
)
 
26,912

Corporate bonds
90,685

 

 
(155
)
 
90,530

U.S. agency notes
2,500

 

 
(11
)
 
2,489

U.S. treasuries
27,495

 

 
(70
)
 
27,425

Total short-term investments
$
147,844

 
$

 
$
(248
)
 
$
147,596

Corporate bonds
28,186

 

 
(158
)
 
28,028

U.S. agency notes
3,002

 

 
(11
)
 
2,991

Total long-term investments
$
31,188

 
$

 
$
(169
)
 
$
31,019

Total cash, cash equivalents and investments
$
295,378

 
$

 
$
(418
)
 
$
294,960


 As of September 29, 2018, the Company’s available-for-sale investments have contractual maturity terms of up to 12 months. Gross realized gains and losses on investments were insignificant in all periods. The specific identification method is used to account for gains and losses on available-for-sale investments.
As of September 29, 2018, the Company had $446.9 million of cash, cash equivalents and short-term investments, including $39.3 million of cash and cash equivalents held by its foreign subsidiaries. The Company's cash in foreign locations is used for operational and investing activities in those locations, and the Company does not currently have the need or the intent to repatriate those funds to the United States.
v3.10.0.1
Derivative Instruments
9 Months Ended
Sep. 29, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Instruments
Derivative Instruments
Foreign Currency Exchange Forward Contracts
The Company transacts business in various foreign currencies and has international sales, cost of sales, and expenses denominated in foreign currencies, and carries foreign-currency-denominated monetary assets and liabilities, subjecting the Company to foreign currency risk. The Company’s primary foreign currency risk management objective is to protect the U.S. dollar value of future cash flows and minimize the volatility of reported earnings. The Company utilizes foreign currency exchange forward contracts, primarily short term in nature.
The Company periodically enters into foreign currency exchange forward contracts to manage its exposure to fluctuation in foreign exchange rates that arise from its euro and British pound denominated receivables and restricted cash balances. Gains and losses on these contracts are intended to offset the impact of foreign exchange rate fluctuations on the underlying foreign currency denominated accounts receivables and restricted cash, and therefore, do not subject the Company to material balance sheet risk.
The Company also enters into foreign currency exchange forward contracts to reduce the volatility of cash flows primarily related to forecasted revenues and expenses denominated in euros, British pound and Swedish kronor (“SEK”). The contracts are settled at maturity and at rates agreed to at inception of the contracts. The gains and losses on these foreign currency derivatives are recorded to the consolidated statement of operations line item, in the current period, to which the item that is being economically hedged is recorded.
As of September 29, 2018, the Company posted $0.9 million of collateral on its derivative instruments to cover potential credit risk exposure. This amount is classified as other long-term restricted cash on the accompanying condensed consolidated balance sheets.
For the three months ended September 29, 2018 and September 30, 2017, the before-tax effect of the foreign currency exchange forward contracts was a gain of $0.1 million and a loss $1.2 million, respectively, and for the nine months ended September 29, 2018 and September 30, 2017, the before-tax effect of the foreign currency exchange forward contracts was a gain of $0.6 million and a loss of $2.9 million, respectively. In each of these periods, the impact of the gross gains and losses was offset by foreign exchange rate fluctuations on the underlying foreign currency denominated amounts.
As of September 29, 2018, the Company did not designate foreign currency exchange forward contracts as hedges for accounting purposes and accordingly, changes in the fair value are recorded in the accompanying condensed consolidated statements of operations. These contracts were entered into with one high-quality institution and the Company consistently monitors the creditworthiness of the counterparties.
The fair value of derivative instruments not designated as hedging instruments in the Company’s condensed consolidated balance sheets was as follows (in thousands):
 
As of September 29, 2018
 
As of December 30, 2017
 
Gross Notional(1)  
 
Prepaid Expense and Other Assets
 
Gross Notional(1)  
 
Other Accrued Liabilities
Foreign currency exchange forward contracts
 
 
 
 
 
 
 
Related to euro denominated receivables
$
12,652

 
$
5

 
$
24,794

 
$
(202
)
Related to euro denominated restricted cash
$
244

 

 
$
252

 
(2
)
 


 
$
5

 


 
$
(204
)
 
 
 
(1) 
Represents the face amounts of forward contracts that were outstanding as of the end of the period noted.
v3.10.0.1
Goodwill and Intangible Assets
9 Months Ended
Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
Goodwill
Goodwill is recorded when the purchase price of an acquisition exceeds the fair value of the net tangible and identified intangible assets acquired.
The following table presents details of the Company’s goodwill during the nine months ended September 29, 2018 (in thousands):
Balance as of December 30, 2017
$
195,615

Foreign currency translation adjustments
(14,629
)
Balance as of September 29, 2018
$
180,986


The gross carrying amount of goodwill may change due to the effects of foreign currency fluctuations as these assets are denominated in SEK. To date, the Company has zero accumulated impairment loss on goodwill.
Intangible Assets
The following tables present details of the Company’s intangible assets as of September 29, 2018 and December 30, 2017 (in thousands, except for weighted-average):
 
September 29, 2018
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Weighted-Average Remaining Useful Life (In Years)
Intangible assets with finite lives:


 


 


 
 
Customer relationships
$
47,229

 
$
(18,311
)
 
$
28,918

 
4.9
Developed technology
96,871

 
(59,645
)
 
37,226

 
2.0
Total intangible assets
$
144,100

 
$
(77,956
)
 
$
66,144

 
3.3

 
December 30, 2017
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Weighted Average Remaining Useful Life (In Years)
Intangible assets with finite lives:
 
 
 
 
 
 
 
Customer relationships
$
51,050

 
$
(15,007
)
 
$
36,043

 
5.6
Developed technology
104,708

 
(48,563
)
 
56,145

 
2.7
Total intangible assets
$
155,758

 
$
(63,570
)
 
$
92,188

 
3.9

The gross carrying amount of intangible assets and the related amortization expense of intangible assets may change due to the effects of foreign currency fluctuations as these assets are denominated in SEK. Amortization expense was $6.3 million and $19.7 million for the three and nine months ended September 29, 2018, respectively, and was $7.0 million and $19.9 million, respectively, for the corresponding periods in 2017.
Intangible assets are carried at cost less accumulated amortization. Amortization expenses are recorded to the appropriate cost and expense categories. During 2017, the Company recorded an impairment charge to research and development expenses of $0.3 million for certain intangible assets, which the Company has determined that the carrying value will not be recoverable. During the first quarter of 2017, the Company transferred $0.3 million of its in-process technology to developed technology, which is being amortized over a useful life of five years.
The following table summarizes the Company’s estimated future amortization expense of intangible assets with finite lives as of September 29, 2018 (in thousands):
 
 
 
Fiscal Years
 
Total
 
Remainder of 2018
 
2019
 
2020
 
2021
 
2022
 
2023 and Thereafter
Total future amortization expense
$
66,144

 
$
6,381

 
$
24,950

 
$
18,207

 
$
6,656

 
$
6,078

 
$
3,872

v3.10.0.1
Balance Sheet Details
9 Months Ended
Sep. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet Details
Balance Sheet Details
Restricted Cash
The Company’s restricted cash balance is primarily comprised of certificates of deposit and money market funds, of which the majority is not insured by the Federal Deposit Insurance Corporation. These amounts primarily collateralize the Company’s issuances of standby letters of credit and bank guarantees. Additionally, the Company's restricted cash balance includes amounts pledged as collateral on its derivative instruments.
The following table provides details of selected balance sheet items (in thousands):
 
September 29, 2018
 
December 30, 2017
Inventory
 
 
 
Raw materials
$
33,627

 
$
27,568

Work in process
56,401

 
59,662

Finished goods
121,917

 
127,474

Total inventory
$
211,945

 
$
214,704

Property, plant and equipment, net
 
 
 
Computer hardware
$
14,887

 
$
13,881

Computer software(1)
32,844

 
32,521

Laboratory and manufacturing equipment
263,137

 
246,380

Land and building
12,352

 
12,347

Furniture and fixtures
2,543

 
2,474

Leasehold and building improvements
43,128

 
43,475

Construction in progress
34,688

 
34,816

Subtotal
$
403,579

 
$
385,894

Less accumulated depreciation and amortization
(271,656
)
 
(249,952
)
Total property, plant and equipment, net
$
131,923

 
$
135,942

Accrued expenses
 
 
 
Loss contingency related to non-cancelable purchase commitments
$
7,601

 
$
6,379

Professional and other consulting fees
7,203

 
5,305

Taxes payable
3,668

 
3,707

Restructuring
2,887

 
5,490

Right of return
7,514

 

Other accrued expenses
14,451

 
18,901

Total accrued expenses
$
43,324

 
$
39,782

 
 
 
(1) 
Included in computer software at September 29, 2018 and December 30, 2017 were $13.1 million and $11.4 million, respectively, related to enterprise resource planning (ERP) systems that the Company implemented. The unamortized ERP costs at September 29, 2018 and December 30, 2017 were $4.4 million and $4.7 million, respectively.
v3.10.0.1
Restructuring and Related Costs
9 Months Ended
Sep. 29, 2018
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
Restructuring and Related Costs
In the fourth quarter of 2017, the Company implemented the 2017 Restructuring Plan in order to reduce expenses and establish a more cost-effective structure that better aligns the Company's operations with its long-term strategies.
The following table presents restructuring and related costs (credits) included in cost of revenue and operating expenses in the accompanying consolidated statements of operations under the 2017 Restructuring Plan (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 29, 2018
 
Cost of Revenue
 
Operating Expenses
 
Cost of Revenue
 
Operating Expenses
Severance and related expenses
$
7

 
$
28

 
$
50

 
$
1,873

Facilities

 
163

 

 
(874
)
Asset impairment

 

 

 
(74
)
License impairment

 

 

 
783

Total
$
7

 
$
191

 
$
50

 
$
1,708


Restructuring liabilities are reported within accrued expenses and other long-term liabilities in the accompanying consolidated balance sheets (in thousands):
 
 
December 30, 2017
 
Charges (Credits)
 
Cash
 
Non-cash Settlements and Other
 
September 29, 2018
 
 
Severance and related expenses
$
3,672

 
$
1,923

 
$
(4,529
)
 
$
(28
)
 
$
1,038

 
Facilities
6,947

 
(874
)
 
(1,388
)
 
(40
)
 
4,645

 
Asset impairment

 
(74
)
 

 
74

 

 
License impairment

 
783

 

 
(342
)
 
441

 
Total
$
10,619

 
$
1,758

 
$
(5,917
)
 
$
(336
)
 
$
6,124


During the first half of 2018, the Company revised its estimates related to its facilities closures due to the sublease of two restructured facilities and also recorded severance costs for additional impacted employees. Additionally, the Company recorded an impairment of $0.8 million related to term license agreements that were determined to have no future use. The Company expects the payments related to these term license agreements to be fully paid by the third quarter of 2019. As of September 29, 2018, the Company's restructuring liability was comprised of $4.6 million related to facility closures, with leases through January 2022, and $1.0 million of severance and related expenses, which are expected to be substantially paid by the second quarter of 2019
v3.10.0.1
Accumulated Other Comprehensive Income (Loss)
9 Months Ended
Sep. 29, 2018
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income (loss) includes certain changes in equity that are excluded from net loss. The following table sets forth the changes in accumulated other comprehensive income (loss) by component for the nine months ended September 29, 2018 (in thousands): 
 
 
Unrealized Loss on Other Available-for-Sale Securities
 
Foreign Currency Translation     
 
Accumulated Tax Effect
 
Total        
Balance at December 30, 2017
 
$
(418
)
 
$
7,551

 
$
(879
)
 
$
6,254

Net current-period other comprehensive loss
 
274

 
(26,242
)
 
(71
)
 
(26,039
)
Balance at September 29, 2018
 
$
(144
)
 
$
(18,691
)
 
$
(950
)
 
$
(19,785
)
v3.10.0.1
Basic and Diluted Net Loss Per Common Share
9 Months Ended
Sep. 29, 2018
Earnings Per Share [Abstract]  
Basic and Diluted Net Loss Per Common Share
Basic and Diluted Net Loss Per Common Share
Basic net loss per common share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per common share is computed using net loss and the weighted average number of common shares outstanding plus potentially dilutive common shares outstanding during the period. Potentially dilutive common shares include the assumed exercise of outstanding stock options, assumed release of outstanding restricted stock units (“RSUs”) and performance stock units (“PSUs”), and assumed issuance of common stock under the Company's Employee Stock Purchase Plan (“ESPP”) using the treasury stock method. Potentially dilutive common shares also include the assumed conversion of $402.5 million in aggregate principal amount of its 2.125% convertible senior notes due September 1, 2024 (the “2024 Notes”) from the conversion spread (as further discussed in Note 11, “Convertible Senior Notes” to the Notes to Condensed Consolidated Financial Statements), and $150.0 million in aggregate principal amount of its 1.75% convertible senior notes due June 1, 2018 (the “2018 Notes”) from the conversion spread (as further discussed in Note 11, “Convertible Senior Notes” to the Notes to Condensed Consolidated Financial Statements disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2017). The Company would include the dilutive effects of the 2024 Notes in the calculation of diluted net income per common share if the average market price is above the conversion price. Upon conversion of the 2024 Notes, it is the Company’s intention to pay cash equal to the lesser of the aggregate principal amount or the conversion value of the 2024 Notes being converted, therefore, only the conversion spread relating to the 2024 Notes would be included in the Company’s diluted earnings per share calculation unless their effect is anti-dilutive. The Company includes the common shares underlying PSUs in the calculation of diluted net income per common share only when they become contingently issuable.
The following table sets forth the computation of net loss per common share – basic and diluted (in thousands, except per share amounts):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Net loss
$
(32,610
)
 
$
(37,231
)
 
$
(80,828
)
 
$
(120,521
)
Weighted average common shares outstanding - basic and diluted
153,492

 
148,777

 
152,028

 
147,367

Net loss per common share - basic and diluted
$
(0.21
)
 
$
(0.25
)
 
$
(0.53
)
 
$
(0.82
)

The Company incurred net losses during the three and nine months ended September 29, 2018 and September 30, 2017, and as a result, potential common shares from stock options, RSUs, PSUs and the assumed release of outstanding shares under the ESPP were not included in the diluted shares used to calculate net loss per share, as their inclusion would have been anti-dilutive. Additionally, due to the net loss position during these periods, the Company excluded the potential shares issuable upon conversion of the 2024 Notes and 2018 Notes in the calculation of diluted earnings per share, s their inclusion would have been anti-dilutive.
The following sets forth the potentially dilutive shares excluded from the computation of the diluted net loss per share because their effect was anti-dilutive (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Stock options
1,115

 
1,406

 
1,140

 
1,482

RSUs
7,406

 
6,359

 
8,141

 
6,877

PSUs
1,219

 
1,434

 
1,336

 
1,437

ESPP shares
1,513

 
1,395

 
1,253

 
1,080

Total
11,253

 
10,594

 
11,870

 
10,876

v3.10.0.1
Convertible Senior Notes
9 Months Ended
Sep. 29, 2018
Debt Disclosure [Abstract]  
Convertible Senior Notes
Convertible Senior Notes
2.125% Convertible Senior Notes due September 1, 2024
In September 2018, the Company issued the 2024 Notes due on September 1, 2024, unless earlier repurchased, redeemed or converted. The 2024 Notes are governed by a base indenture dated as of September 11, 2018 and a first supplemental indenture dated as of September 11, 2018 (together, the “Indenture”), between the Company and U.S. Bank National Association, as trustee. The 2024 Notes are unsecured, and the Indenture does not contain any financial covenants or any restrictions on the payment of dividends, the incurrence of senior debt or other indebtedness, or the issuance or repurchase of the Company's other securities by the Company.
Interest is payable semi-annually in arrears on March 1 and September 1 of each year, commencing March 1, 2019. The net proceeds to the Company were approximately $391.4 million, of which approximately $48.9 million was used to pay the cost of the capped call transactions with certain financial institutions (“Capped Calls”). The Company also used a portion of the remaining net proceeds to fund the cash portion of the purchase price of the Acquisition (as defined below in Note 17, “Subsequent Event” to the Notes to Condensed Consolidated Financial Statements), including fees and expenses relating thereto, and intends to use the remaining net proceeds for general corporate purposes.
The Capped Calls have an initial strike price of $9.87 per share, subject to certain adjustments, which corresponds to the initial conversion price of the 2024 Notes. The Capped Calls have initial cap prices of $15.19 per share, subject to certain adjustments. The Capped Calls cover, subject to anti-dilution adjustments, 40.8 million shares of common stock. The capped call transactions are expected generally to reduce or offset potential dilution to the Company's common stock upon any conversion of the 2024 Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of converted 2024 Notes, as the case may be, with such reduction and/or offset subject to a cap. The Capped Calls expire on various dates between July 5, 2024 and August 29, 2024. The Capped Calls were recorded as a reduction of the Company’s stockholders' equity in the accompanying condensed consolidated balance sheets.
Upon conversion, it is the Company's intention to pay cash equal to the lesser of the aggregate principal amount or the conversion value of the 2024 Notes. For any remaining conversion obligation, the Company intends to pay or deliver, as the case may be, either cash, shares of its common stock, or a combination of cash and shares of its common stock, at the Company’s election. The initial conversion rate is 101.2812 shares of common stock per $1,000 principal amount of 2024 Notes, subject to anti-dilution adjustments, which is equivalent to a conversion price of approximately $9.87 per share of common stock.
Throughout the term of the 2024 Notes, the conversion rate may be adjusted upon the occurrence of certain events, including for any cash dividends. Holders of the 2024 Notes will not receive any cash payment representing accrued and unpaid interest upon conversion of a 2024 Note. Accrued but unpaid interest will be deemed to be paid in full upon conversion rather than canceled, extinguished or forfeited. Prior to June 1, 2024, holders may convert their 2024 Notes under the following circumstances:

during any fiscal quarter commencing after the fiscal quarter ended on December 29, 2018 (and only during such fiscal quarter) if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day;

during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of 2024 Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such trading day;

if the Company calls the 2024 Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date;

upon the occurrence of specified corporate events described under the Indenture, such as a consolidation, merger or binding share exchange; or

at any time on or after June 1, 2024 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert their 2024 Notes at any time, regardless of the foregoing circumstances.
If the Company undergoes a fundamental change as defined in the Indenture governing the 2024 Notes, holders may require the Company to repurchase for cash all or any portion of their 2024 Notes at a repurchase price equal to 100% of the principal amount of the 2024 Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, upon the occurrence of a “make-whole fundamental change” (as defined in the Indenture), the Company may, in certain circumstances, be required to increase the conversion rate by a number of additional shares for a holder that elects to convert its 2024 Notes in connection with such make-whole fundamental change.

The net carrying amounts of the debt obligation were as follows (in thousands):
 
September 29, 2018
Principal
$
402,500

Unamortized discount (1)
(131,401
)
Unamortized issuance cost (1)
(8,519
)
Net carrying amount
$
262,580

 
 
 
(1) 
Unamortized debt conversion discount and issuance costs will be amortized over the remaining life of the 2024 Notes, which is approximately 72 months.

As of September 29, 2018, the carrying amount of the equity component of the 2024 Notes was $128.7 million.
In accounting for the issuance of the 2024 Notes, the Company separated the 2024 Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar debt instrument that does not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the par value of the 2024 Notes. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. The excess of the principal amount of the liability component over its carrying amount (“debt discount”) is amortized to interest expense over the term of the 2024 Notes.
The Company allocated the total issuance costs incurred to the liability and equity components of the 2024 Notes based on their relative values. Issuance costs attributable to the liability component were recorded as a reduction to the liability portion of the Notes and will be amortized as interest expense over the term of the 2024 Notes. The issuance costs attributable to the equity component were netted with the equity component in stockholders’ equity.
The Company recorded a deferred tax liability of $30.9 million in connection with the issuance of the 2024 Notes, and a corresponding reduction in valuation allowance. The impact of both was recorded to stockholders' equity.
The Company determined that the embedded conversion option in the 2024 Notes does not require separate accounting treatment as a derivative instrument because it is both indexed to the Company’s own stock and would be classified in stockholder’s equity if freestanding.
The following table sets forth total interest expense recognized related to the 2024 Notes (in thousands): 
 
Three and Nine Months Ended
 
September 29, 2018
Contractual interest expense
$
475

Amortization of debt issuance costs
102

Amortization of debt discount
1,578

Total interest expense
$
2,155


For the three months ended September 29, 2018, the debt discount and debt issuance costs were amortized, using an annual effective interest rate of 10.07%, to interest expense over the term of the 2024 Notes.
As of September 29, 2018, the fair value of the 2024 Notes was $403.5 million. The fair value was determined based on the quoted bid price of the 2024 Notes in an over-the-counter market on September 28, 2018. The 2024 Notes are classified as Level 2 of the fair value hierarchy.
Based on the closing price of the Company’s common stock of $7.30 on September 28, 2018, the if-converted value of the Notes did not exceed their principal amount.

1.75% Convertible Senior Notes due June 1, 2018
In May 2013, the Company issued the 2018 Notes, which matured on June 1, 2018. Upon maturity of the 2018 Notes, the Company repaid in full all $150.0 million in aggregate principal amount and the final coupon interest of $1.3 million.
The net carrying amount of the debt obligation as of December 30, 2017 was as follows (in thousands):
Principal
$
150,000

Unamortized discount
(4,670
)
Unamortized issuance cost
(402
)
Net carrying amount
$
144,928



As of December 30, 2017, the carrying amount of the equity component of the 2018 Notes was $43.3 million.
The following table sets forth total interest expense recognized related to the 2018 Notes (in thousands): 
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Contractual interest expense
$

 
$
656

 
$
1,094

 
$
1,969

Amortization of debt issuance costs

 
228

 
402

 
665

Amortization of debt discount

 
2,643

 
4,671

 
7,734

Total interest expense
$

 
$
3,527

 
$
6,167

 
$
10,368


The coupon rate was 1.75%. For the nine months ended September 29, 2018 and the three and nine months ended September 30, 2017, the debt discount and debt issuance costs were amortized, using an annual effective interest rate of 10.23%, to interest expense over the term of the 2018 Notes.
v3.10.0.1
Stockholders' Equity
9 Months Ended
Sep. 29, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stockholders' Equity
Stockholders’ Equity
Stock-based Compensation Plans
The Company has stock-based compensation plans pursuant to which the Company has granted stock options, RSUs and PSUs. The Company also has an ESPP for all eligible employees.
In February 2016, the Company's board of directors adopted the 2016 Equity Incentive Plan (“2016 Plan”) and the Company's stockholders approved the 2016 Plan in May 2016. In May 2018, the Company's stockholders approved an amendment to the 2016 Plan to increase the number of shares authorized for issuance under the 2016 Plan by 1.5 million shares. As of September 29, 2018, the Company has reserved a total of 15.4 million shares of common stock for issuance of stock options, RSUs and PSUs to employees, non-employees, consultants and members of the Company's board of directors, pursuant to the 2016 Plan, plus any shares subject to awards granted under the Company’s 2007 Equity Incentive Plan (the “2007 Plan”) that, after the effective date of the 2016 Plan, expire, are forfeited or otherwise terminate without having been exercised in full to the extent such awards were exercisable, and shares issued pursuant to awards granted under the 2007 Plan that, after the effective date of the 2016 Plan, are forfeited to or repurchased by the Company due to failure to vest. The 2016 Plan has a maximum term of 10 years from the date of adoption, or it can be earlier terminated by the Company's board of directors. The 2007 Plan was canceled; however, it continues to govern outstanding grants under the 2007 Plan.
The following tables summarize the Company’s equity award activity and related information (in thousands, except per share data): 
 
Number of Stock
Options
 
Weighted-Average
Exercise
Price
  Per Share  
 
  Aggregate  
Intrinsic
Value
Outstanding at December 30, 2017
1,397

 
$
8.11

 
$
1

Stock options granted

 
$

 
 
Stock options exercised
(229
)
 
$
7.43

 
$
496

Stock options canceled
(53
)
 
$
11.57

 


Outstanding at September 29, 2018
1,115

 
$
8.09

 
$
53

Exercisable at September 29, 2018
1,115

 
$
8.09

 
$
53


 
 
Number of
Restricted
Stock Units
 
Weighted-
Average
 Grant Date 
Fair Value
Per Share
 
  Aggregate  
Intrinsic
Value
Outstanding at December 30, 2017
6,791

 
$
11.55

 
$
42,988

RSUs granted
3,524

 
$
10.84

 


RSUs released
(2,174
)
 
$
13.06

 
$
24,232

RSUs canceled
(735
)
 
$
11.06

 


Outstanding at September 29, 2018
7,406

 
$
10.81

 
$
54,063


 
 
Number of
Performance
Stock Units
 
Weighted-
Average
 Grant Date 
Fair Value
Per Share
 
  Aggregate  
Intrinsic
Value
Outstanding at December 30, 2017
1,367

 
$
16.28

 
$
8,651

PSUs granted
505

 
$
15.87

 

PSUs released
(28
)
 
$
15.93

 
$
273

PSUs canceled
(625
)
 
$
16.01

 

Outstanding at September 29, 2018
1,219

 
$
16.25

 
$
8,901

Expected to vest at September 29, 2018
863

 

 
$
6,301



The aggregate intrinsic value of unexercised stock options is calculated as the difference between the closing price of the Company’s common stock of $7.30 at September 28, 2018 (the last trading day of the fiscal quarter) and the exercise prices of the underlying stock options. The aggregate intrinsic value of the stock options that have been exercised is calculated as the difference between the fair market value of the common stock at the date of exercise and the exercise price of the underlying stock options.
The aggregate intrinsic value of unreleased RSUs and unreleased PSUs is calculated using the closing price of the Company's common stock of $7.30 at Septemer 28, 2018 (the last trading day of the fiscal quarter). The aggregate intrinsic value of RSUs and PSUs released is calculated using the fair market value of the common stock at the date of release.

The following table presents total stock-based compensation cost for instruments granted but not yet amortized, net of estimated forfeitures, of the Company’s equity compensation plans as of September 29, 2018. These costs are expected to be amortized on a straight-line basis over the following weighted-average periods (in thousands, except for weighted-average period):
 
Unrecognized
Compensation
Expense, Net
 
Weighted-
Average Period
(in years)
RSUs
$
64,016

 
2.7
PSUs
$
9,172

 
1.5

Employee Stock Options
The Company did not grant any stock options during the three and nine months ended September 29, 2018. Amortization of stock-based compensation related to stock options in the three and nine months ended September 29, 2018 and the corresponding periods in 2017 was insignificant.
Employee Stock Purchase Plan
The fair value of the shares was estimated at the date of grant using the following assumptions (expense amounts in thousands):
 
Three Months Ended
 
Nine Months Ended
Employee Stock Purchase Plan
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Volatility
48%
 
47%
 
48% - 62%
 
47% - 51%
Risk-free interest rate
2.31%
 
1.16%
 
1.90% - 2.31%
 
0.81% - 1.16%
Expected life
0.5 years
 
0.5 years
 
0.5 years
 
0.5 years
Estimated fair value
$2.47
 
$2.44
 
$2.47 - $3.13
 
$2.44 - $3.46
Total stock-based compensation expense
$1,477
 
$1,502
 
$4,369
 
$4,575

Restricted Stock Units
During the three and nine months ended September 29, 2018, the Company granted RSUs to employees and members of the Company's board of directors to receive 0.2 million shares and 3.5 million shares of the Company’s common stock, respectively. All RSUs awarded are subject to each individual's continued service to the Company through each applicable vesting date. The Company accounted for the fair value of the RSUs using the closing market price of the Company’s common stock on the date of grant. Amortization of stock-based compensation related to RSUs in the three and nine months ended September 29, 2018 was approximately $7.3 million and $22.7 million, respectively, and was $7.9 million and $24.0 million in the corresponding periods of 2017, respectively.
Performance Stock Units
Pursuant to the 2007 Plan and the 2016 Plan, the Company has granted PSUs to certain of the Company’s executive officers, senior management and other employees. All PSUs awarded are subject to each individual's continued service to the Company through each applicable vesting date and if the performance metrics are not met within the time limits specified in the award agreements, the PSUs will be canceled.
PSUs granted to the Company’s executive officers and senior management under the 2007 Plan during 2016 are based on the total stockholder return (“TSR”) of the Company's common stock price as compared to the TSR of the S&P North American Technology Multimedia Networking Index (“SPGIIPTR”) over the span of one year, two years and three years. The number of shares to be issued upon vesting of these PSUs range from zero to two times the target number of PSUs granted depending on the Company’s performance against the SPGIIPTR.
PSUs granted to the Company’s executive officers and senior management under the 2016 Plan during 2017 and the first half of 2018 are based on the TSR of the Company's common stock price relative to the TSR of the individual companies listed in the SPGIIPTR over the span of one year, two years and three years. The number of shares to be issued upon vesting of these PSUs range from zero to two times the target number of PSUs granted depending on the Company’s performance against the individual companies listed in the SPGIIPTR.
The ranges of estimated values of the PSUs granted that are compared to the SPGIIPTR, as well as the assumptions used in calculating these values were based on estimates as follows:
 
 
2018
 
2017
 
2016
Index volatility
 
33%
 
33% - 34%
 
18%
Infinera volatility
 
58% - 59%
 
55% - 56%
 
55%
Risk-free interest rate
 
2.37% - 2.40%
 
1.41% - 1.63%
 
0.95% - 1.07%
Correlation with index/index component
 
0.04 - 0.48
 
0.10 - 0.49
 
0.58 - 0.59
Estimated fair value
 
$14.99 - $19.46
 
$15.23 - $17.35
 
$10.31 - $16.62


In addition, certain other PSUs granted to the Company’s executive officers, senior management and certain other employees will only vest upon the achievement of specific financial or operational performance criteria.

The following table summarizes by grant year, the Company’s PSU activity for the nine months ended September 29, 2018 (in thousands):
 
 
 
 
Grant Year
 
 
Total Number of Performance Stock Units
 
2015
 
2016
 
2017
 
2018
Outstanding at December 30, 2017
 
1,367

 
77

 
420

 
870

 

PSUs granted
 
505

 

 

 

 
505

PSUs released
 
(28
)
 

 
(28
)
 

 

PSUs canceled
 
(625
)
 
(77
)
 
(196
)
 
(352
)
 

Outstanding at September 29, 2018
 
1,219

 

 
196

 
518

 
505


Amortization of stock-based compensation related to PSUs in the three and nine months ended September 29, 2018 was approximately $2.2 million and $6.9 million, respectively, and was $2.7 million and $7.3 million in the corresponding periods of 2017, respectively.
Stock-Based Compensation
The following tables summarize the effects of stock-based compensation on the Company’s condensed consolidated balance sheets and statements of operations for the periods presented (in thousands):
 
September 29, 2018
 
December 30, 2017
Stock-based compensation effects in inventory
$
4,827

 
$
5,255

 
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Stock-based compensation effects included in net loss before income taxes
 
 
 
 
 
 
 
Cost of revenue
$
590

 
$
779

 
$
1,092

 
$
2,337

Research and development
4,077

 
4,040

 
12,593

 
12,004

Sales and marketing
2,744

 
3,025

 
8,688

 
9,024

General and administration
2,578

 
3,039

 
8,112

 
8,431

 
$
9,989

 
$
10,883

 
$
30,485

 
$
31,796

Cost of revenue – amortization from balance sheet (1)
1,378

 
1,284

 
3,909

 
3,628

Total stock-based compensation expense
$
11,367

 
$
12,167

 
$
34,394

 
$
35,424

 
 
 
(1) 
Stock-based compensation expense deferred to inventory in prior periods and recognized in the current period.
v3.10.0.1
Income Taxes
9 Months Ended
Sep. 29, 2018
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes
Income taxes for the three and nine months ended September 29, 2018 were a provision for income taxes of $0.1 million and benefit from income taxes of $0.7 million, respectively, on pre-tax losses of $32.5 million and $81.5 million, respectively. This compared to a provision for income taxes of $0.2 million and benefit from income taxes of $0.5 million, respectively, on pre-tax losses of $37.0 million and $121.0 million for the three and nine months ended September 30, 2017, respectively. Provision for income taxes decreased by approximately $0.1 million in the three months ended September 29, 2018 as a result of less foreign tax expense, as compared to the corresponding period in 2017. Benefit from income taxes increased by $0.2 million relating to the release of tax reserves due to statute of limitations expiration through the nine months ended September 29, 2018. Due to the Company’s current operating losses and tax loss carryforwards in the United States and cost-plus international structures outside of Sweden, the tax expense or benefit is less sensitive to pretax income or loss than would otherwise be expected, compared to the statutory tax rate.
In all periods, the tax expense and benefit projected in the Company's effective tax rate assumptions primarily represents foreign taxes of the Company's overseas subsidiaries compensated on a cost-plus basis, as well as the results of the Company's Swedish operations, inclusive of purchase accounting amortization and other charges for the three and nine months ended September 29, 2018.
The Company must assess the likelihood that some portion or all of its deferred tax assets will be recovered from future taxable income within the respective jurisdictions. In the past, the Company established a valuation allowance against its deferred tax assets as it determined that its ability to recover the value of these assets did not meet the “more-likely-than-not” standard. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management judgment is required on an on-going basis to determine whether it needs to maintain the valuation allowance recorded against its net deferred tax assets. The Company must consider all positive and negative evidence, including its forecasts of taxable income over the applicable carryforward periods, its current financial performance, its market environment and other factors in evaluating the need for a valuation allowance against its net U.S. deferred tax assets. At September 29, 2018, the Company does not believe that it is more-likely-than-not that it would be able to utilize its domestic deferred tax assets in the foreseeable future. Accordingly, the domestic net deferred tax assets continued to be fully reserved with a valuation allowance. To the extent that the Company determines that deferred tax assets are realizable on a more-likely-than-not basis, and adjustment is needed, that adjustment will be recorded in the period that the determination is made and would generally decrease the valuation allowance and record a corresponding benefit to earnings.
The Company reasonably estimated the impact of the Tax Act on its income tax provision for the year ended December 30, 2017, based on its understanding of the Tax Act and guidance at that time. The estimates are subject to adjustment during a measurement period not to extend beyond one year from the enactment date of the Tax Act, or by December 22, 2018. During the three and nine months ended September 29, 2018, no adjustments to prior year estimates were made. Adjustments may be made during the measurement period subject to refinement of the Company's analysis and further technical guidance.
v3.10.0.1
Segment Information
9 Months Ended
Sep. 29, 2018
Segment Reporting [Abstract]  
Segment Information
Segment Information
Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The Company’s chief operating decision maker is the Company’s Chief Executive Officer (“CEO”). The Company’s CEO reviews financial information presented on a consolidated basis, accompanied by information about revenue by geographic region for purposes of allocating resources and evaluating financial performance. The Company has one business activity as a provider of optical transport networking equipment, software and services. Accordingly, the Company is considered to be in a single reporting segment and operating unit structure.
The following table sets forth long-lived assets by geographic region (in thousands):
 
September 29, 2018
 
December 30, 2017
United States
$
124,975

 
$
128,582

Other Americas
1,590

 
661

Europe, Middle East and Africa
3,003

 
3,527

Asia Pacific
2,355

 
3,172

Total property, plant and equipment, net
$
131,923

 
$
135,942



For information regarding revenue disaggregated by geography, see Note 3, “Revenue Recognition” to the Notes to Condensed Consolidated Financial Statements.
v3.10.0.1
Guarantees
9 Months Ended
Sep. 29, 2018
Guarantees [Abstract]  
Guarantees
Guarantees
Product Warranties
Activity related to product warranty was as follows (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Beginning balance
$
30,237

 
$
32,400

 
$
30,909

 
$
40,342

Charges to operations
5,680

 
4,550

 
15,203

 
14,231

Utilization
(4,391
)
 
(3,484
)
 
(12,896
)
 
(10,773
)
Change in estimate(1)
(1,044
)
 
(1,304
)
 
(2,734
)
 
(11,638
)
Balance at the end of the period
$
30,482

 
$
32,162

 
$
30,482

 
$
32,162

 
 
 
(1) 
The Company records product warranty liabilities based on the latest quality and cost information available as of the date the revenue is recorded. The changes in estimate shown here are due to changes in overall actual failure rates, the mix of new versus used units related to replacement of failed units, and changes in the estimated cost of repair. As the Company's products mature over time, failure rates and repair costs generally decline leading to favorable changes in warranty reserves. In addition, during the first quarter of 2017, due to product quality improvements, the Company revised certain estimates used in calculating its product warranties that resulted in a one-time reduction to the warranty accrual of $2.2 million.
Letters of Credit and Bank Guarantees
The Company had $3.7 million of standby letters of credit and bank guarantees outstanding as of September 29, 2018 that consisted of $1.8 million related to customer performance guarantees, $1.2 million related to value added tax and customs' licenses, and $0.7 million related to property leases. The Company had $4.2 million of standby letters of credit and bank guarantees outstanding as of December 30, 2017 that consisted of $2.2 million related to customer performance guarantees, $1.3 million related to a value added tax license and $0.7 million related to property leases.
As of September 29, 2018 and December 30, 2017, the Company had a line of credit for approximately $1.6 million to support the issuance of letters of credit, of which zero been issued and outstanding for both periods. The Company has pledged approximately $5.0 million and $5.2 million of assets of a subsidiary to secure this line of credit and other obligations as of September 29, 2018 and December 30, 2017, respectively.
v3.10.0.1
Litigation and Contingencies
9 Months Ended
Sep. 29, 2018
Commitments and Contingencies Disclosure [Abstract]  
Litigation and Contingencies
Litigation and Contingencies
Legal Matters
On November 23, 2016, Oyster Optics, LLC (“Oyster Optics”) filed a complaint against the Company in the United States District Court for the Eastern District of Texas. The complaint asserts U.S. Patent Nos. 6,469,816, 6,476,952, 6,594,055, 7,099,592, 7,620,327 (the “'327 patent”), 8,374,511 (the “'511 patent”) and 8,913,898 (the “'898 patent”) (collectively, the “Oyster Optics patents in suit”). The complaint seeks unspecified damages and a permanent injunction. The Company filed its answer to Oyster Optics' complaint on February 3, 2017. The Company filed two petitions for an IPR of the '898 patent with the USPTO. Other defendants have filed IPR petitions in connection with the remaining Oyster Optics patents in suit. The USPTO instituted two IPRs of the '511 patent and two IPRs of '898 patent but denied IPR petitions in connection with the '327 patent. A Markman decision was issued on December 5, 2017 and fact discovery closed on December 22, 2017. Oyster Optics dropped all '511 and '898 patents, leaving only a few claims in the '327 patent at issue in the case. On May 15, 2018, Oyster Optics filed a new patent infringement complaint in the United States District Court for the Eastern District of Texas, naming the Company as a defendant. In its new complaint, Oyster Optics alleges infringement of the ‘327 patent, U.S. Patent No. 9,749,040 and the ‘898 patent. On June 8, 2018, the court granted the parties’ joint motion to sever and consolidate the first-filed lawsuit with the later filed case. The Company filed its answer to the new complaint on July 16, 2018. A case management conference was held on September 11, 2018, and the court set a trial date for November 4, 2019. On October 26, 2018, the Company filed an amended answer to include a license defense. The Company is currently unable to predict the outcome of this litigation and therefore cannot reasonably estimate the possible loss or range of loss, if any, arising from this matter.
On March 24, 2017, Core Optical Technologies, LLC (“Core Optical”) filed a complaint against the Company in the United States District Court for the Central District of California. The complaint asserts U.S. Patent No. 6,782,211 (the “Core Optical patent in suit”). The complaint seeks unspecified damages and a permanent injunction. The Company believes that it does not infringe any valid and enforceable claim of the Core Optical patent in suit and intends to defend this action vigorously. The Company filed its answer to Core Optical's complaint on September 25, 2017. A Markman hearing was held on May 9, 2018 and the court has set a trial for March 2019. On June 14, 2018, the Company filed a petition for IPR of the Core Optical patent in suit. Core Optical contacted the Company on July 19, 2018 to propose that the case be stayed pending the IPR. The Company agreed to Core Optical’s proposal, and the parties filed a joint motion to stay, which the court granted on July 31, 2018. On October 17, 2018, Core Optical filed a response to the Company's IPR petition. The Company is unable to predict the outcome of this litigation at this time and therefore cannot reasonably estimate the possible loss or range of loss, if any, arising from this matter.
In addition to the matters described above, the Company is subject to various legal proceedings, claims and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, the Company does not expect that the ultimate costs to resolve these matters will have a material effect on its consolidated financial position, results of operations or cash flows.
Loss Contingencies
The Company is subject to the possibility of various losses arising in the ordinary course of business. These may relate to disputes, litigation and other legal actions. In the preparation of its quarterly and annual financial statements, the Company considers the likelihood of loss or the incurrence of a liability, including whether it is probable, reasonably possible or remote that a liability has been incurred, as well as the Company’s ability to reasonably estimate the amount of loss, in determining loss contingencies. In accordance with U.S. GAAP, an estimated loss contingency is accrued when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. The Company regularly evaluates current information to determine whether any accruals should be adjusted and whether new accruals are required. During the three months ended September 29, 2018, the Company released $5.1 million of accruals for loss contingencies that were determined to be remote with a corresponding decrease in cost of revenues. As of September 29, 2018, the Company has not accrued or recorded any material liabilities for loss contingencies.
Indemnification Obligations
From time to time, the Company enters into certain types of contracts that contingently require it to indemnify parties against third party claims. The terms of such indemnification obligations vary. These contracts may relate to: (i) certain real estate leases under which the Company may be required to indemnify property owners for environmental and other liabilities, and other claims arising from the Company’s use of the applicable premises; (ii) contracts with certain customers, which require the Company to indemnify them as further described below; and (iii) certain agreements with the Company’s officers, directors and certain key employees, under which the Company may be required to indemnify such persons for liabilities as further described below.
In addition, the Company has agreed to indemnify certain customers for claims made against the Company’s products, where such claims allege infringement of third party intellectual property rights, including, but not limited to, patents, registered trademarks, and/or copyrights. Under the aforementioned intellectual property indemnification clauses, the Company may be obligated to defend the customer and pay for the damages awarded against the customer under an infringement claim as well as the customer’s attorneys’ fees and costs. These indemnification obligations generally do not expire after termination or expiration of the agreement containing the indemnification obligation. In certain cases, there are limits on and exceptions to the Company’s potential liability for indemnification. Although historically, the Company has not made significant payments under these indemnification obligations, the Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements. The maximum potential amount of any future payments that the Company could be required to make under these indemnification obligations could be significant.
As permitted under Delaware law and the Company’s charter and bylaws, the Company has agreements whereby it indemnifies certain of its officers and each of its directors. The term of the indemnification period is for the officer’s or director’s lifetime for certain events or occurrences while the officer or director is, or was, serving at the Company’s request in such capacity. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements could be significant; however, the Company has a director and officer insurance policy that may reduce its exposure and enable it to recover all or a portion of any future amounts paid. As a result of its insurance policy coverage, the Company believes the estimated fair value of these indemnification agreements is minimal.
v3.10.0.1
Subsequent Events
9 Months Ended
Sep. 29, 2018
Subsequent Events [Abstract]  
Subsequent Events
Subsequent Event
On October 1, 2018, the Company completed the acquisition of Telecom Holding Parent LLC, a privately held global supplier of open network solutions for the largest global network operators (such company, “Coriant” and such purchase, the “Acquisition”), a Delaware limited liability company and wholly-owned subsidiary of Coriant Investor LLC, a Delaware limited liability company (“Seller”), pursuant to the Unit Purchase Agreement (the “Purchase Agreement”) by and among the Company, Seller and Oaktree Optical Holdings, L.P., a Delaware limited partnership.
Under the terms of the Purchase Agreement, the Company paid approximately $154 million in cash at closing and issued 20,975,384 shares of common stock.
The Company financed the cash portion of the purchase price of the Acquisition with the net proceeds from its offering of the 2024 Notes. See Note 11, “Convertible Senior Notes" to the Notes to Condensed Consolidated Financial Statements for more information.
The Acquisition will be accounted for under the acquisition method of accounting in accordance with ASC Topic 805, “Business Combinations.” As the acquirer for accounting purposes, the Company intends to estimate the fair value of Coriant's assets acquired and liabilities assumed and conform the accounting policies of Coriant to its own accounting policies.
As a result of progress made integrating Coriant, it is impracticable to disclose the supplemental pro-forma amounts of revenue and earnings attributable to the combined Infinera and Coriant entities as if the business combination occurred at the beginning of fiscal 2017.
v3.10.0.1
Recent Accounting Pronouncements (Policies)
9 Months Ended
Sep. 29, 2018
Accounting Policies [Abstract]  
Recent Accounting Pronouncements
Recent Accounting Pronouncements
Accounting Pronouncements Recently Adopted
In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act" (“SAB 118”), which allows the Company to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. Since the U.S. Tax Cuts and Jobs Act (the “Tax Act”) was passed in December 2017, and ongoing guidance and accounting interpretation are expected over the next 12 months, the Company considers the accounting of the transition tax and deferred tax re-measurements to be incomplete due to the forthcoming guidance and the ongoing analysis of final year-end data and tax positions. The Company expects to complete the analysis within the measurement period in accordance with SAB 118. In March 2018, the Financial Accounting Standards Board (the “FASB”) issued ASU 2018-05, “Amendments to SEC Paragraphs Pursuant to SAB 118” and added such SEC guidance to Accounting Standards Codification 740, “Income Taxes, codified under the title: Income Tax Accounting Implications of the Tax Cuts and Jobs Act.”
In May 2017, the FASB issued Accounting Standards Update No. 2017-09, “Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting” (“ASU 2017-09”), which amends the scope of modification accounting for share-based payment arrangements, and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under Topic 718. The Company's adoption of ASU 2017-09 during its first quarter of 2018 had no impact on its condensed consolidated financial statements.
In November 2016, the FASB issued ASU 2016-18, which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. As such, restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and ending-of-period total amounts shown on the statement of cash flows. The Company adopted ASU 2016-18 during the first quarter of fiscal 2018, using the retrospective transition approach. See the condensed consolidated statements of cash flows for a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts on the condensed consolidated statements of cash flows.
In May 2016, the FASB issued Accounting Standards Update No. 2016-11, “Revenue Recognition (Topic 605) and Derivatives and Hedging (Topic 815): Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting (SEC Update)” (“ASU 2016-11”), which rescinds various standards codified as part of Topic 605, Revenue Recognition in relation to the future adoption of Topic 606. These rescissions include changes to topics pertaining to revenue and expense recognition for freight services in process, accounting for shipping and handling fees and costs, and accounting for consideration given by a vendor to a customer. The Company adopted ASU 2016-11 during the first quarter of 2018. See Note 3, “Revenue Recognition” to the Notes to Condensed Consolidated Financial Statements for more information.
In May 2014, the FASB issued ASC 606, which creates a single, joint revenue standard that is consistent across all industries and markets for companies that prepare their financial statements in accordance with U.S. GAAP. Under ASC 606, an entity is required to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration the entity expects to be entitled to receive in exchange for those goods or services. In August 2015, the FASB issued Accounting Standards update 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASC 606 by one year with early adoption permitted beginning after December 15, 2016. The updated standard is effective for interim and annual periods beginning after December 15, 2017. In April 2016, the FASB issued Accounting Standards Update No. 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing,” which clarifies the implementation guidance on identifying performance obligations and licensing. In May 2016, the FASB issued Accounting Standards Update No. 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients,” which amends the guidance on collectability, noncash consideration, presentation of sales tax and transition. In December 2016, the FASB issued Accounting Standards Update No. 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” to increase stakeholders' awareness of the proposals and to expedite improvements to ASC 606. ASC 606 also includes Subtopic 340-40, “Other Assets and Deferred Costs - Contracts with Customers,” which requires the deferral of incremental costs of obtaining a contract with a customer. Collectively, the Company refers to ASC 606 and Subtopic 340-40 as “ASC 606.” The Company adopted ASC 606 as of December 31, 2017 using the modified retrospective transition method applied to those contracts that were not completed as of December 31, 2017. See Note 3, “Revenue Recognition” to the Notes to Condensed Consolidated Financial Statements for more information.
In January 2016, the FASB issued Accounting Standards Update No. 2016-01, “Financial Instruments (Topic 825): Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which requires equity investments to be measured at fair value with changes in fair value recognized in the income statement and simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. The Company adopted ASU 2016-01 during its first quarter of 2018 and the adoption did not have a material impact on its condensed consolidated financial statements. See Note 4, “Fair Value Measurements” to the Notes to Condensed Consolidated Financial Statements for more information.
Accounting Pronouncements Not Yet Effective
In August 2018, the FASB issued Accounting Standards Update No. 2018-15 (“ASU 2018-15”), “Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract.” The update provides guidance for determining if a cloud computing arrangement is within the scope of internal-use software guidance, and would require capitalization of certain implementation costs. ASU 2018-15 is effective for the Company in its first quarter of 2020, with early adoption permitted. The Company is currently evaluating the impact the adoption of ASU 2018-15 will have on its consolidated financial statements.
In August 2018, the FASB issued Accounting Standards Update No. 2018-13 (“ASU 2018-13”), “Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” The update eliminates, adds, and modifies certain disclosure requirements for fair value measurements. ASU 2018-13 is effective for the Company in its first quarter of 2020 and early adoption is permitted of the entire standard or only the provisions that eliminate or modify disclosure requirements. The Company is currently evaluating the impact the adoption of ASU 2018-13 will have on its consolidated financial statements.
In June 2018, the FASB issued Accounting Standards Update No. 2018-07, “Improvements to Non-employee Share-Based Payment Accounting” (“ASU 2018-07”), which simplifies the accounting for share-based payments granted to non-employees for goods and services. Under ASU 2018-07, certain guidance on such payments to non-employees would be aligned with the requirements for share-based payments granted to employees. The guidance will be effective for the Company's first quarter of 2019 and early adoption is permitted. As the Company does not have material non-employee awards, it does not expect the adoption of ASU 2018-07 to have a material impact on its consolidated financial statements.
In January 2017, the FASB issued Accounting Standards Update No. 2017-04, “Simplifying the Test for Goodwill Impairment” (“ASU 2017-04”). The guidance eliminates Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts. ASU 2017-04 will be effective for the Company's annual or any interim goodwill impairment tests in its first quarter of fiscal 2020. The Company is currently evaluating the impact the adoption of ASU 2017-04 will have on its consolidated financial statements.
In June 2016, the FASB issued Accounting Standards Update No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”), which requires measurement and recognition of expected credit losses for financial assets held. This guidance is effective for the Company in its first quarter of fiscal 2020 and early adoption is permitted. The Company is currently evaluating the impact the adoption of ASU 2016-13 will have on its consolidated financial statements.
In February 2016, the FASB issued Accounting Standards Update 2016-02, “Leases (Topic 842)” (“ASU 2016-02”), which amends the existing accounting standards for leases. The new standard requires lessees to record a right-of-use asset and a corresponding lease liability on the balance sheet (with the exception of short-term leases). For lessees, leases will continue to be classified as either operating or financing in the income statement. This guidance is effective for the Company in its first quarter of fiscal 2019. ASU 2016-02 is required to be applied with a modified retrospective approach and requires application of the new standard at the beginning of the earliest comparative period presented. In July 2018, the FASB issued ASU 2018-11 “Leases (Topic 842): Targeted Improvements,” (“ASU 2018-11”), which provides lessees an additional (and optional) transition method to apply the new leasing standard to all open leases at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company is currently evaluating the impact the adoption of ASU 2016-02 and ASU 2018-11 will have on its consolidated financial statements and expects to have increases in the assets and liabilities of its consolidated balance sheets.
v3.10.0.1
Revenue Recognition (Tables)
9 Months Ended
Sep. 29, 2018
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
The following table presents the Company's revenue disaggregated by revenue source (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017(1)
 
September 29, 2018
 
September 30, 2017(1)
Product
$
167,030

 
$
159,579

 
$
513,947

 
$
449,992

Services
33,383

 
33,001

 
97,374

 
94,931

Total revenue
$
200,413

 
$
192,580

 
$
611,321

 
$
544,923


The Company sells its products directly to customers who are predominantly service providers and to channel partners that sell on our behalf. The following tables present the Company's revenue disaggregated by geography, based on the shipping address of the customer and by sales channel (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017(1)
 
September 29, 2018
 
September 30, 2017(1)
United States
$
98,097

 
$
113,617

 
$
348,109

 
$
325,593

Other Americas
6,775

 
5,636

 
16,867

 
14,642

Europe, Middle East and Africa
59,131

 
58,391

 
180,492

 
163,714

Asia Pacific
36,410

 
14,936

 
65,853

 
40,974

Total revenue
$
200,413

 
$
192,580

 
$
611,321

 
$
544,923


 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017(1)
 
September 29, 2018
 
September 30, 2017(1)
Direct
$
172,918

 
$
179,300

 
$
557,004

 
$
512,072

Indirect
27,495

 
13,280

 
54,317

 
32,851

Total revenue
$
200,413

 
$
192,580

 
$
611,321

 
$
544,923

 
 
 
(1)
Prior period amounts have not been adjusted under the modified retrospective method.
Contract with Customer, Asset and Liability
The following table provides information about receivables, contract assets and contract liabilities from contracts with customers (in thousands):
 
September 29, 2018
 
At Adoption
Accounts receivable, net
$
153,901

 
$
135,245

Contract assets
$
6,469

 
$
2,825

Deferred revenue
$
58,516

 
$
75,458

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially satisfied) at the end of the reporting period (in thousands):
 
Remainder of 2018
 
2019
 
2020
 
2021
 
2022
 
Thereafter
 
Total
Revenue expected to be recognized in the future as of September 29, 2018
$
96,246

 
$
56,853

 
$
18,278

 
$
5,056

 
$
2,536

 
$
2,300

 
$
181,269

Schedule of New Accounting Pronouncements and Changes in Accounting Principles
The following tables summarize the impact of adopting ASC 606 on the Company's condensed consolidated statement of operations for the three and nine months ended September 29, 2018 and the Company's condensed consolidated balance sheet as of December 31, 2017 (in thousands):
 
Three Months Ended September 29, 2018
 
As Reported
 
Adjustments
 
Balances Without Adoption of ASC 606
Income Statement
 
 
 
 
 
Revenue
 
 
 
 
 
Product
$
167,030

 
$
(1,845
)
 
$
165,185

Services
33,383

 
900

 
34,283

 
$
200,413

 
$
(945
)
 
$
199,468

Costs and expenses
 
 
 
 
 
Cost of revenue
$
130,234

 
$
1,356

 
$
131,590

Net loss
$
(32,610
)
 
$
(2,301
)
 
$
(34,911
)
Net loss per share - basic and diluted
$
(0.21
)
 
$
(0.02
)
 
$
(0.23
)
 
Nine Months Ended September 29, 2018
 
As Reported
 
Adjustments
 
Balances Without Adoption of ASC 606
Income Statement
 
 
 
 
 
Revenue
 
 
 
 
 
Product
$
513,947

 
$
(2,740
)
 
$
511,207

Services
97,374

 
3,380

 
100,754

 
$
611,321

 
$
640

 
$
611,961

Costs and expenses
 
 
 
 
 
Cost of revenue
$
374,669

 
$
2,596

 
$
377,265

Net loss
$
(80,828
)
 
$
(1,956
)
 
$
(82,784
)
Net loss per share - basic and diluted
$
(0.53
)
 
$
(0.01
)
 
$
(0.54
)
 
Balance at December 30, 2017
 
Adjustments due to ASC 606
 
As Adjusted Balance at December 31, 2017
Balance Sheet
 
 
 
 
 
Assets
 
 
 
 
 
Accounts receivable, net
$
126,152

 
$
9,093

 
$
135,245

Inventory
$
214,704

 
$
(239
)
 
$
214,465

Prepaid expenses and other assets
$
43,339

 
$
2,731

 
$
46,070

 
 
 
 
 
 
Liabilities
 
 
 
 
 
Accrued expenses
$
39,782

 
$
15,645

 
$
55,427

Deferred revenue
$
94,923

 
$
(19,465
)
 
$
75,458

 
 
 
 
 
 
Equity
 
 
 
 
 
Accumulated deficit
$
(758,081
)
 
$
15,406

 
$
(742,675
)
v3.10.0.1
Fair Value Measurements (Tables)
9 Months Ended
Sep. 29, 2018
Fair Value Disclosures [Abstract]  
Assets and Liabilities Measured at Fair Value on Recurring Basis
The following tables represent the Company’s fair value hierarchy for its assets and liabilities measured at fair value on a recurring basis (in thousands): 
 
As of September 29, 2018
 
As of December 30, 2017
 
Fair Value Measured Using
 
Fair Value Measured Using
 
Level 1      
 
Level 2      
 
Total        
 
Level 1      
 
Level 2      
 
Total        
Assets
 
 
 
 
 
 
 
 
 
 
 
Money market funds
$
50

 
$

 
$
50

 
$
20,371

 
$

 
$
20,371

Certificates of deposit

 

 

 

 
240

 
240

Commercial paper

 

 

 

 
26,912

 
26,912

Corporate bonds

 
25,490

 
25,490

 

 
118,558

 
118,558

U.S. agency notes

 
2,994

 
2,994

 

 
5,480

 
5,480

U.S. treasuries
1,996

 

 
1,996

 
35,408

 

 
35,408

Foreign currency exchange forward contracts

 
5

 
5

 

 

 

Total assets
$
2,046

 
$
28,489

 
$
30,535

 
$
55,779

 
$
151,190

 
$
206,969

Liabilities
 
 
 
 
 
 
 
 
 
 
 
Foreign currency exchange forward contracts
$

 
$

 
$

 
$

 
$
(204
)
 
$
(204
)
Investments at Fair Value
Cash, cash equivalents and investments were as follows (in thousands): 
 
September 29, 2018
 
Adjusted
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
Cash
$
416,356

 
$

 
$

 
$
416,356

Money market funds
50

 

 

 
50

Total cash and cash equivalents
$
416,406

 
$

 
$

 
$
416,406

Corporate bonds
25,624

 

 
(134
)
 
25,490

U.S. agency notes
3,000

 

 
(6
)
 
2,994

U.S. treasuries
2,000

 

 
(4
)
 
1,996

Total short-term investments
$
30,624

 
$

 
$
(144
)
 
$
30,480

Total cash, cash equivalents and investments
$
447,030

 
$

 
$
(144
)
 
$
446,886


 
December 30, 2017
 
Adjusted
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
Cash
$
87,991

 
$

 
$

 
$
87,991

Money market funds
20,371

 

 

 
20,371

U.S. treasuries
7,984

 

 
(1
)
 
7,983

Total cash and cash equivalents
$
116,346

 
$

 
$
(1
)
 
$
116,345

Certificates of deposit
240

 

 

 
240

Commercial paper
26,924

 

 
(12
)
 
26,912

Corporate bonds
90,685

 

 
(155
)
 
90,530

U.S. agency notes
2,500

 

 
(11
)
 
2,489

U.S. treasuries
27,495

 

 
(70
)
 
27,425

Total short-term investments
$
147,844

 
$

 
$
(248
)
 
$
147,596

Corporate bonds
28,186

 

 
(158
)
 
28,028

U.S. agency notes
3,002

 

 
(11
)
 
2,991

Total long-term investments
$
31,188

 
$

 
$
(169
)
 
$
31,019

Total cash, cash equivalents and investments
$
295,378

 
$

 
$
(418
)
 
$
294,960

v3.10.0.1
Derivative Instruments (Tables)
9 Months Ended
Sep. 29, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Fair Value of Derivative Instruments not Designated as Hedging Instruments
The fair value of derivative instruments not designated as hedging instruments in the Company’s condensed consolidated balance sheets was as follows (in thousands):
 
As of September 29, 2018
 
As of December 30, 2017
 
Gross Notional(1)  
 
Prepaid Expense and Other Assets
 
Gross Notional(1)  
 
Other Accrued Liabilities
Foreign currency exchange forward contracts
 
 
 
 
 
 
 
Related to euro denominated receivables
$
12,652

 
$
5

 
$
24,794

 
$
(202
)
Related to euro denominated restricted cash
$
244

 

 
$
252

 
(2
)
 


 
$
5

 


 
$
(204
)
 
 
 
(1) 
Represents the face amounts of forward contracts that were outstanding as of the end of the period noted.
v3.10.0.1
Goodwill and Intangible Assets (Tables)
9 Months Ended
Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The following table presents details of the Company’s goodwill during the nine months ended September 29, 2018 (in thousands):
Balance as of December 30, 2017
$
195,615

Foreign currency translation adjustments
(14,629
)
Balance as of September 29, 2018
$
180,986

Schedule of Finite-Lived Intangible Assets
The following tables present details of the Company’s intangible assets as of September 29, 2018 and December 30, 2017 (in thousands, except for weighted-average):
 
September 29, 2018
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Weighted-Average Remaining Useful Life (In Years)
Intangible assets with finite lives:


 


 


 
 
Customer relationships
$
47,229

 
$
(18,311
)
 
$
28,918

 
4.9
Developed technology
96,871

 
(59,645
)
 
37,226

 
2.0
Total intangible assets
$
144,100

 
$
(77,956
)
 
$
66,144

 
3.3

 
December 30, 2017
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Weighted Average Remaining Useful Life (In Years)
Intangible assets with finite lives:
 
 
 
 
 
 
 
Customer relationships
$
51,050

 
$
(15,007
)
 
$
36,043

 
5.6
Developed technology
104,708

 
(48,563
)
 
56,145

 
2.7
Total intangible assets
$
155,758

 
$
(63,570
)
 
$
92,188

 
3.9
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
The following table summarizes the Company’s estimated future amortization expense of intangible assets with finite lives as of September 29, 2018 (in thousands):
 
 
 
Fiscal Years
 
Total
 
Remainder of 2018
 
2019
 
2020
 
2021
 
2022
 
2023 and Thereafter
Total future amortization expense
$
66,144

 
$
6,381

 
$
24,950

 
$
18,207

 
$
6,656

 
$
6,078

 
$
3,872

v3.10.0.1
Balance Sheet Details (Tables)
9 Months Ended
Sep. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Details of Selected Balance Sheet Items
The following table provides details of selected balance sheet items (in thousands):
 
September 29, 2018
 
December 30, 2017
Inventory
 
 
 
Raw materials
$
33,627

 
$
27,568

Work in process
56,401

 
59,662

Finished goods
121,917

 
127,474

Total inventory
$
211,945

 
$
214,704

Property, plant and equipment, net
 
 
 
Computer hardware
$
14,887

 
$
13,881

Computer software(1)
32,844

 
32,521

Laboratory and manufacturing equipment
263,137

 
246,380

Land and building
12,352

 
12,347

Furniture and fixtures
2,543

 
2,474

Leasehold and building improvements
43,128

 
43,475

Construction in progress
34,688

 
34,816

Subtotal
$
403,579

 
$
385,894

Less accumulated depreciation and amortization
(271,656
)
 
(249,952
)
Total property, plant and equipment, net
$
131,923

 
$
135,942

Accrued expenses
 
 
 
Loss contingency related to non-cancelable purchase commitments
$
7,601

 
$
6,379

Professional and other consulting fees
7,203

 
5,305

Taxes payable
3,668

 
3,707

Restructuring
2,887

 
5,490

Right of return
7,514

 

Other accrued expenses
14,451

 
18,901

Total accrued expenses
$
43,324

 
$
39,782

 
 
 
(1) 
Included in computer software at September 29, 2018 and December 30, 2017 were $13.1 million and $11.4 million, respectively, related to enterprise resource planning (ERP) systems that the Company implemented. The unamortized ERP costs at September 29, 2018 and December 30, 2017 were $4.4 million and $4.7 million, respectively.
v3.10.0.1
Restructuring and Related Costs (Tables)
9 Months Ended
Sep. 29, 2018
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
The following table presents restructuring and related costs (credits) included in cost of revenue and operating expenses in the accompanying consolidated statements of operations under the 2017 Restructuring Plan (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 29, 2018
 
Cost of Revenue
 
Operating Expenses
 
Cost of Revenue
 
Operating Expenses
Severance and related expenses
$
7

 
$
28

 
$
50

 
$
1,873

Facilities

 
163

 

 
(874
)
Asset impairment

 

 

 
(74
)
License impairment

 

 

 
783

Total
$
7

 
$
191

 
$
50

 
$
1,708

Schedule of Restructuring Reserve by Type of Cost
Restructuring liabilities are reported within accrued expenses and other long-term liabilities in the accompanying consolidated balance sheets (in thousands):
 
 
December 30, 2017
 
Charges (Credits)
 
Cash
 
Non-cash Settlements and Other
 
September 29, 2018
 
 
Severance and related expenses
$
3,672

 
$
1,923

 
$
(4,529
)
 
$
(28
)
 
$
1,038

 
Facilities
6,947

 
(874
)
 
(1,388
)
 
(40
)
 
4,645

 
Asset impairment

 
(74
)
 

 
74

 

 
License impairment

 
783

 

 
(342
)
 
441

 
Total
$
10,619

 
$
1,758

 
$
(5,917
)
 
$
(336
)
 
$
6,124

v3.10.0.1
Accumulated Other Comprehensive Income (Loss) (Tables)
9 Months Ended
Sep. 29, 2018
Equity [Abstract]  
Summary of Changes in Accumulated Other Comprehensive Income (Loss)
The following table sets forth the changes in accumulated other comprehensive income (loss) by component for the nine months ended September 29, 2018 (in thousands): 
 
 
Unrealized Loss on Other Available-for-Sale Securities
 
Foreign Currency Translation     
 
Accumulated Tax Effect
 
Total        
Balance at December 30, 2017
 
$
(418
)
 
$
7,551

 
$
(879
)
 
$
6,254

Net current-period other comprehensive loss
 
274

 
(26,242
)
 
(71
)
 
(26,039
)
Balance at September 29, 2018
 
$
(144
)
 
$
(18,691
)
 
$
(950
)
 
$
(19,785
)
v3.10.0.1
Basic and Diluted Net Loss Per Common Share (Tables)
9 Months Ended
Sep. 29, 2018
Earnings Per Share [Abstract]  
Computation of Net Income (Loss) Per Common Share Basic and Diluted
The following table sets forth the computation of net loss per common share – basic and diluted (in thousands, except per share amounts):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Net loss
$
(32,610
)
 
$
(37,231
)
 
$
(80,828
)
 
$
(120,521
)
Weighted average common shares outstanding - basic and diluted
153,492

 
148,777

 
152,028

 
147,367

Net loss per common share - basic and diluted
$
(0.21
)
 
$
(0.25
)
 
$
(0.53
)
 
$
(0.82
)
Antidilutive Shares Excluded from Computation of Diluted Net Income (Loss) Per Share
The following sets forth the potentially dilutive shares excluded from the computation of the diluted net loss per share because their effect was anti-dilutive (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Stock options
1,115

 
1,406

 
1,140

 
1,482

RSUs
7,406

 
6,359

 
8,141

 
6,877

PSUs
1,219

 
1,434

 
1,336

 
1,437

ESPP shares
1,513

 
1,395

 
1,253

 
1,080

Total
11,253

 
10,594

 
11,870

 
10,876

v3.10.0.1
Convertible Senior Notes (Tables)
9 Months Ended
Sep. 29, 2018
Debt Disclosure [Abstract]  
Components of Convertible Senior Notes
The net carrying amount of the debt obligation as of December 30, 2017 was as follows (in thousands):
Principal
$
150,000

Unamortized discount
(4,670
)
Unamortized issuance cost
(402
)
Net carrying amount
$
144,928

The net carrying amounts of the debt obligation were as follows (in thousands):
 
September 29, 2018
Principal
$
402,500

Unamortized discount (1)
(131,401
)
Unamortized issuance cost (1)
(8,519
)
Net carrying amount
$
262,580

 
 
 
(1) 
Unamortized debt conversion discount and issuance costs will be amortized over the remaining life of the 2024 Notes, which is approximately 72 months.
Interest Expense Recognized Related To Notes
The following table sets forth total interest expense recognized related to the 2018 Notes (in thousands): 
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Contractual interest expense
$

 
$
656

 
$
1,094

 
$
1,969

Amortization of debt issuance costs

 
228

 
402

 
665

Amortization of debt discount

 
2,643

 
4,671

 
7,734

Total interest expense
$

 
$
3,527

 
$
6,167

 
$
10,368

The following table sets forth total interest expense recognized related to the 2024 Notes (in thousands): 
 
Three and Nine Months Ended
 
September 29, 2018
Contractual interest expense
$
475

Amortization of debt issuance costs
102

Amortization of debt discount
1,578

Total interest expense
$
2,155

v3.10.0.1
Stockholders' Equity (Tables)
9 Months Ended
Sep. 29, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Company's Equity Award Activity - Options
The following tables summarize the Company’s equity award activity and related information (in thousands, except per share data): 
 
Number of Stock
Options
 
Weighted-Average
Exercise
Price
  Per Share  
 
  Aggregate  
Intrinsic
Value
Outstanding at December 30, 2017
1,397

 
$
8.11

 
$
1

Stock options granted

 
$

 
 
Stock options exercised
(229
)
 
$
7.43

 
$
496

Stock options canceled
(53
)
 
$
11.57

 


Outstanding at September 29, 2018
1,115

 
$
8.09

 
$
53

Exercisable at September 29, 2018
1,115

 
$
8.09

 
$
53

Summary of Company's Equity Award Activity - RSUs
 
Number of
Restricted
Stock Units
 
Weighted-
Average
 Grant Date 
Fair Value
Per Share
 
  Aggregate  
Intrinsic
Value
Outstanding at December 30, 2017
6,791

 
$
11.55

 
$
42,988

RSUs granted
3,524

 
$
10.84

 


RSUs released
(2,174
)
 
$
13.06

 
$
24,232

RSUs canceled
(735
)
 
$
11.06

 


Outstanding at September 29, 2018
7,406

 
$
10.81

 
$
54,063

Summary of Company's Equity Award Activity - PSUs
 
Number of
Performance
Stock Units
 
Weighted-
Average
 Grant Date 
Fair Value
Per Share
 
  Aggregate  
Intrinsic
Value
Outstanding at December 30, 2017
1,367

 
$
16.28

 
$
8,651

PSUs granted
505

 
$
15.87

 

PSUs released
(28
)
 
$
15.93

 
$
273

PSUs canceled
(625
)
 
$
16.01

 

Outstanding at September 29, 2018
1,219

 
$
16.25

 
$
8,901

Expected to vest at September 29, 2018
863

 

 
$
6,301



Total Stock Based Compensation Cost for Instruments Granted but Not Yet Amortized
The following table presents total stock-based compensation cost for instruments granted but not yet amortized, net of estimated forfeitures, of the Company’s equity compensation plans as of September 29, 2018. These costs are expected to be amortized on a straight-line basis over the following weighted-average periods (in thousands, except for weighted-average period):
 
Unrecognized
Compensation
Expense, Net
 
Weighted-
Average Period
(in years)
RSUs
$
64,016

 
2.7
PSUs
$
9,172

 
1.5
Estimated Fair Value of ESPP Shares
The fair value of the shares was estimated at the date of grant using the following assumptions (expense amounts in thousands):
 
Three Months Ended
 
Nine Months Ended
Employee Stock Purchase Plan
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Volatility
48%
 
47%
 
48% - 62%
 
47% - 51%
Risk-free interest rate
2.31%
 
1.16%
 
1.90% - 2.31%
 
0.81% - 1.16%
Expected life
0.5 years
 
0.5 years
 
0.5 years
 
0.5 years
Estimated fair value
$2.47
 
$2.44
 
$2.47 - $3.13
 
$2.44 - $3.46
Total stock-based compensation expense
$1,477
 
$1,502
 
$4,369
 
$4,575
Schedule of Share-based Payment Award, Valuation Assumptions
The ranges of estimated values of the PSUs granted that are compared to the SPGIIPTR, as well as the assumptions used in calculating these values were based on estimates as follows:
 
 
2018
 
2017
 
2016
Index volatility
 
33%
 
33% - 34%
 
18%
Infinera volatility
 
58% - 59%
 
55% - 56%
 
55%
Risk-free interest rate
 
2.37% - 2.40%
 
1.41% - 1.63%
 
0.95% - 1.07%
Correlation with index/index component
 
0.04 - 0.48
 
0.10 - 0.49
 
0.58 - 0.59
Estimated fair value
 
$14.99 - $19.46
 
$15.23 - $17.35
 
$10.31 - $16.62
Schedule of Nonvested Performance Based Units Activity by Grant Year
The following table summarizes by grant year, the Company’s PSU activity for the nine months ended September 29, 2018 (in thousands):
 
 
 
 
Grant Year
 
 
Total Number of Performance Stock Units
 
2015
 
2016
 
2017
 
2018
Outstanding at December 30, 2017
 
1,367

 
77

 
420

 
870

 

PSUs granted
 
505

 

 

 

 
505

PSUs released
 
(28
)
 

 
(28
)
 

 

PSUs canceled
 
(625
)
 
(77
)
 
(196
)
 
(352
)
 

Outstanding at September 29, 2018
 
1,219

 

 
196

 
518

 
505


Summary of Effects of Stock-Based Compensation on Company's Balance Sheets and Statements of Operations
The following tables summarize the effects of stock-based compensation on the Company’s condensed consolidated balance sheets and statements of operations for the periods presented (in thousands):
 
September 29, 2018
 
December 30, 2017
Stock-based compensation effects in inventory
$
4,827

 
$
5,255

 
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Stock-based compensation effects included in net loss before income taxes
 
 
 
 
 
 
 
Cost of revenue
$
590

 
$
779

 
$
1,092

 
$
2,337

Research and development
4,077

 
4,040

 
12,593

 
12,004

Sales and marketing
2,744

 
3,025

 
8,688

 
9,024

General and administration
2,578

 
3,039

 
8,112

 
8,431

 
$
9,989

 
$
10,883

 
$
30,485

 
$
31,796

Cost of revenue – amortization from balance sheet (1)
1,378

 
1,284

 
3,909

 
3,628

Total stock-based compensation expense
$
11,367

 
$
12,167

 
$
34,394

 
$
35,424

 
 
 
(1) 
Stock-based compensation expense deferred to inventory in prior periods and recognized in the current period.

v3.10.0.1
Segment Information (Tables)
9 Months Ended
Sep. 29, 2018
Segment Reporting [Abstract]  
Table of Long Lived Assets
The following table sets forth long-lived assets by geographic region (in thousands):
 
September 29, 2018
 
December 30, 2017
United States
$
124,975

 
$
128,582

Other Americas
1,590

 
661

Europe, Middle East and Africa
3,003

 
3,527

Asia Pacific
2,355

 
3,172

Total property, plant and equipment, net
$
131,923

 
$
135,942

v3.10.0.1
Guarantees (Tables)
9 Months Ended
Sep. 29, 2018
Guarantees [Abstract]  
Activity Related to Product Warranty
Activity related to product warranty was as follows (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29, 2018
 
September 30, 2017
 
September 29, 2018
 
September 30, 2017
Beginning balance
$
30,237

 
$
32,400

 
$
30,909

 
$
40,342

Charges to operations
5,680

 
4,550

 
15,203

 
14,231

Utilization
(4,391
)
 
(3,484
)
 
(12,896
)
 
(10,773
)
Change in estimate(1)
(1,044
)
 
(1,304
)
 
(2,734
)
 
(11,638
)
Balance at the end of the period
$
30,482

 
$
32,162

 
$
30,482

 
$
32,162

 
 
 
(1) 
The Company records product warranty liabilities based on the latest quality and cost information available as of the date the revenue is recorded. The changes in estimate shown here are due to changes in overall actual failure rates, the mix of new versus used units related to replacement of failed units, and changes in the estimated cost of repair. As the Company's products mature over time, failure rates and repair costs generally decline leading to favorable changes in warranty reserves. In addition, during the first quarter of 2017, due to product quality improvements, the Company revised certain estimates used in calculating its product warranties that resulted in a one-time reduction to the warranty accrual of $2.2 million.
v3.10.0.1
Basis of Presentation and Significant Accounting Policies (Details) - Sales revenue, net - Customer concentration risk
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Customer One        
Concentration Risk [Line Items]        
Concentration risk 17.00% 16.00% 22.00% 16.00%
Customer Two        
Concentration Risk [Line Items]        
Concentration risk 14.00% 12.00% 14.00% 11.00%
v3.10.0.1
Revenue Recognition - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 31, 2017
Dec. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Accumulated deficit $ (823,503)   $ (823,503)   $ (742,675) $ (758,081)
(Increase) decrease in revenue 200,413 $ 192,580 611,321 $ 544,923    
Capitalized cost to obtain contract 400   400      
Deferred revenue recognized     35,200      
Adjustments | Accounting Standards Update 2014-09            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Accumulated deficit           $ 15,406
(Increase) decrease in revenue $ (945)   $ 640      
Minimum            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Payment term     30 days      
Purchase commitment time frame     12 months      
Maximum            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Payment term     120 days      
Purchase commitment time frame     24 months      
v3.10.0.1
Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Disaggregation of Revenue [Line Items]        
Total revenue $ 200,413 $ 192,580 $ 611,321 $ 544,923
United States        
Disaggregation of Revenue [Line Items]        
Total revenue 98,097 113,617 348,109 325,593
Other Americas        
Disaggregation of Revenue [Line Items]        
Total revenue 6,775 5,636 16,867 14,642
Europe, Middle East and Africa        
Disaggregation of Revenue [Line Items]        
Total revenue 59,131 58,391 180,492 163,714
Asia Pacific        
Disaggregation of Revenue [Line Items]        
Total revenue 36,410 14,936 65,853 40,974
Product        
Disaggregation of Revenue [Line Items]        
Revenue 167,030 159,579 513,947 449,992
Services        
Disaggregation of Revenue [Line Items]        
Revenue 33,383 33,001 97,374 94,931
Direct        
Disaggregation of Revenue [Line Items]        
Total revenue 172,918 179,300 557,004 512,072
Indirect        
Disaggregation of Revenue [Line Items]        
Total revenue $ 27,495 $ 13,280 $ 54,317 $ 32,851
v3.10.0.1
Revenue Recognition - Contract with Customer, Asset and Liability (Details) - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 31, 2017
Dec. 30, 2017
Revenue from Contract with Customer [Abstract]      
Accounts receivable, net $ 153,901 $ 135,245 $ 126,152
Accounts receivable, net 6,469 2,825  
Deferred revenue $ 58,516 $ 75,458  
v3.10.0.1
Revenue Recognition - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction (Details)
$ in Thousands
Sep. 29, 2018
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 181,269
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01  
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 96,246
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in the future, period 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01  
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 56,853
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in the future, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 18,278
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in the future, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 5,056
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in the future, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 2,536
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in the future, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01  
Revenue from Contract with Customer [Abstract]  
Revenue expected to be recognized in the future as of September 29, 2018 $ 2,300
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in the future, period
v3.10.0.1
Revenue Recognition - Schedule of New Accounting Pronouncements and Changes in Accounting Principles (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 31, 2017
Dec. 30, 2017
Revenue            
Revenues $ 200,413 $ 192,580 $ 611,321 $ 544,923    
Costs and expenses            
Cost of revenue 130,234 124,754 374,669 348,209    
Net loss $ (32,610) $ (37,231) $ (80,828) $ (120,521)    
Net loss per share - basic and diluted (in dollars per share) $ (0.21) $ (0.25) $ (0.53) $ (0.82)    
Assets            
Accounts receivable, net $ 153,901   $ 153,901   $ 135,245 $ 126,152
Inventory 211,945   211,945   214,465 214,704
Prepaid expenses and other current assets         46,070 43,339
Liabilities            
Accrued expenses 43,324   43,324   55,427 39,782
Deferred revenue         75,458 94,923
Equity            
Accumulated deficit (823,503)   (823,503)   $ (742,675) (758,081)
Balances Without Adoption of ASC 606            
Revenue            
Revenues 199,468   611,961      
Costs and expenses            
Cost of revenue 131,590   377,265      
Net loss $ (34,911)   $ (82,784)      
Net loss per share - basic and diluted (in dollars per share) $ (0.23)   $ (0.54)      
Accounting Standards Update 2014-09 | Adjustments            
Revenue            
Revenues $ (945)   $ 640      
Costs and expenses            
Cost of revenue 1,356   2,596      
Net loss $ (2,301)   $ (1,956)      
Net loss per share - basic and diluted (in dollars per share) $ (0.02)   $ (0.01)      
Assets            
Accounts receivable, net           9,093
Inventory           (239)
Prepaid expenses and other current assets           2,731
Liabilities            
Accrued expenses           15,645
Deferred revenue           (19,465)
Equity            
Accumulated deficit           $ 15,406
Product            
Revenue            
Revenue $ 167,030 $ 159,579 $ 513,947 $ 449,992    
Product | Balances Without Adoption of ASC 606            
Revenue            
Revenue 165,185   511,207      
Product | Accounting Standards Update 2014-09 | Adjustments            
Revenue            
Revenue (1,845)   (2,740)      
Services            
Revenue            
Revenue 33,383 $ 33,001 97,374 $ 94,931    
Services | Balances Without Adoption of ASC 606            
Revenue            
Revenue 34,283   100,754      
Services | Accounting Standards Update 2014-09 | Adjustments            
Revenue            
Revenue $ 900   $ 3,380      
v3.10.0.1
Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair value, measurements, recurring - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 30, 2017
Assets    
Total assets $ 30,535 $ 206,969
Foreign currency exchange forward contracts    
Assets    
Total assets 5 0
Liabilities    
Foreign currency exchange forward contracts 0 (204)
Money market funds    
Assets    
Total assets 50 20,371
Certificates of deposit    
Assets    
Total assets 0 240
Commercial paper    
Assets    
Total assets 0 26,912
Corporate bonds    
Assets    
Total assets 25,490 118,558
U.S. agency notes    
Assets    
Total assets 2,994 5,480
U.S. treasuries    
Assets    
Total assets 1,996 35,408
Level 1    
Assets    
Total assets 2,046 55,779
Level 1 | Foreign currency exchange forward contracts    
Assets    
Total assets 0 0
Liabilities    
Foreign currency exchange forward contracts 0 0
Level 1 | Money market funds    
Assets    
Total assets 50 20,371
Level 1 | Certificates of deposit    
Assets    
Total assets 0 0
Level 1 | Commercial paper    
Assets    
Total assets 0 0
Level 1 | Corporate bonds    
Assets    
Total assets 0 0
Level 1 | U.S. agency notes    
Assets    
Total assets 0 0
Level 1 | U.S. treasuries    
Assets    
Total assets 1,996 35,408
Level 2    
Assets    
Total assets 28,489 151,190
Level 2 | Foreign currency exchange forward contracts    
Assets    
Total assets 5 0
Liabilities    
Foreign currency exchange forward contracts 0 (204)
Level 2 | Money market funds    
Assets    
Total assets 0 0
Level 2 | Certificates of deposit    
Assets    
Total assets 0 240
Level 2 | Commercial paper    
Assets    
Total assets 0 26,912
Level 2 | Corporate bonds    
Assets    
Total assets 25,490 118,558
Level 2 | U.S. agency notes    
Assets    
Total assets 2,994 5,480
Level 2 | U.S. treasuries    
Assets    
Total assets $ 0 $ 0
v3.10.0.1
Fair Value Measurements - Investments at Fair Value (Details) - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 30, 2017
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Cash $ 416,356 $ 87,991
Adjusted Amortized Cost 447,030 295,378
Gross Unrealized Gains 0 0
Gross Unrealized Losses (144) (418)
Fair Value 446,886 294,960
Cash and Cash Equivalents    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost 416,406 116,346
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 (1)
Fair Value 416,406 116,345
Cash and Cash Equivalents | Money market funds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost 50 20,371
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Fair Value 50 20,371
Cash and Cash Equivalents | U.S. treasuries    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost   7,984
Gross Unrealized Gains   0
Gross Unrealized Losses   (1)
Fair Value   7,983
Short-term Investments    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost 30,624 147,844
Gross Unrealized Gains 0 0
Gross Unrealized Losses (144) (248)
Fair Value 30,480 147,596
Short-term Investments | Commercial paper    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost   26,924
Gross Unrealized Gains   0
Gross Unrealized Losses   (12)
Fair Value   26,912
Short-term Investments | Corporate bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost 25,624 90,685
Gross Unrealized Gains 0 0
Gross Unrealized Losses (134) (155)
Fair Value 25,490 90,530
Short-term Investments | U.S. treasuries    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost 2,000 27,495
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4) (70)
Fair Value 1,996 27,425
Short-term Investments | Certificates of deposit    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost   240
Gross Unrealized Gains   0
Gross Unrealized Losses   0
Fair Value   240
Short-term Investments | U.S. agency notes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost 3,000 2,500
Gross Unrealized Gains 0 0
Gross Unrealized Losses (6) (11)
Fair Value $ 2,994 2,489
Other Long-term Investments    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost   31,188
Gross Unrealized Gains   0
Gross Unrealized Losses   (169)
Fair Value   31,019
Other Long-term Investments | Corporate bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost   28,186
Gross Unrealized Gains   0
Gross Unrealized Losses   (158)
Fair Value   28,028
Other Long-term Investments | U.S. agency notes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjusted Amortized Cost   3,002
Gross Unrealized Gains   0
Gross Unrealized Losses   (11)
Fair Value   $ 2,991
v3.10.0.1
Fair Value Measurements - Equity Investment (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 29, 2018
Sep. 29, 2018
Sep. 30, 2017
Dec. 30, 2017
Dec. 31, 2016
Fair Value Disclosures [Abstract]          
Purchase of equity method investment         $ 7,000
Equity method investment $ 900 $ 900   $ 5,100  
Impairment on non-marketable equity investment $ 4,300 $ 4,260 $ 0 $ 1,900  
v3.10.0.1
Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Dec. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale investments     12 months  
Cash, cash equivalents and short-term investments $ 446,900   $ 446,900  
Cash and cash equivalents held by foreign subsidiaries 416,406 $ 116,345 416,406 $ 122,042
Foreign Subsidiary        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents held by foreign subsidiaries 39,300   39,300  
Operating Expenses        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Facilities $ 163 $ 7,300 $ (874)  
v3.10.0.1
Derivative Instruments - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]        
Posted collateral $ 0.9   $ 0.9  
Before-tax effect of foreign currency exchange forward contracts not designated as hedging instruments, gain (loss) $ 0.1 $ (1.2) $ 0.6 $ (2.9)
v3.10.0.1
Derivative Instruments - Fair Value of Derivative Instruments Not Designated as Hedging Activities (Details) - USD ($)
Sep. 29, 2018
Dec. 30, 2017
Derivative [Line Items]    
Prepaid Expense and Other Assets $ 43,756,000 $ 43,140,000
Not designated as hedging instrument    
Derivative [Line Items]    
Prepaid Expense and Other Assets 5,000  
Other Accrued Liabilities   (204,000)
Not designated as hedging instrument | Related to euro denominated receivables    
Derivative [Line Items]    
Gross Notional 12,652,000 24,794,000
Prepaid Expense and Other Assets 5,000  
Other Accrued Liabilities   (202,000)
Not designated as hedging instrument | Related to euro denominated restricted cash    
Derivative [Line Items]    
Gross Notional 244,000 252,000
Prepaid Expense and Other Assets $ 0  
Other Accrued Liabilities   $ (2,000)
v3.10.0.1
Goodwill and Intangible Assets - Goodwill Roll Forward (Details)
$ in Thousands
9 Months Ended
Sep. 29, 2018
USD ($)
Goodwill [Roll Forward]  
Balance as of December 30, 2017 $ 195,615
Foreign currency translation adjustments (14,629)
Balance as of September 29, 2018 $ 180,986
v3.10.0.1
Goodwill and Intangible Assets - Purchased Intangible Assets (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 29, 2018
Dec. 30, 2017
Intangible assets with finite lives:    
Gross Carrying Amount $ 144,100 $ 155,758
Accumulated Amortization (77,956) (63,570)
Net Carrying Amount $ 66,144 $ 92,188
Weighted average remaining useful life (in years) 3 years 3 months 4 days 3 years 10 months 8 days
Customer relationships    
Intangible assets with finite lives:    
Gross Carrying Amount $ 47,229 $ 51,050
Accumulated Amortization (18,311) (15,007)
Net Carrying Amount $ 28,918 $ 36,043
Weighted average remaining useful life (in years) 4 years 10 months 21 days 5 years 7 months 20 days
Developed technology    
Intangible assets with finite lives:    
Gross Carrying Amount $ 96,871 $ 104,708
Accumulated Amortization (59,645) (48,563)
Net Carrying Amount $ 37,226 $ 56,145
Weighted average remaining useful life (in years) 1 year 11 months 27 days 2 years 8 months 15 days
v3.10.0.1
Goodwill and Intangible Assets - Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Apr. 01, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 30, 2017
Intangible assets with finite lives:            
Goodwill impairment       $ 0    
Amortization expense $ 6,300 $ 7,000   $ 19,700 $ 19,900  
Other intangible assets            
Intangible assets with finite lives:            
Impairment charge           $ 300
Developed technology            
Intangible assets with finite lives:            
Finite-lived intangible assets, period increase (decrease)     $ 300      
Finite-lived intangible asset, useful life     5 years      
v3.10.0.1
Goodwill and Intangible Assets - Future Amortization Expense (Details) - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
Net Carrying Amount $ 66,144 $ 92,188
Remainder of 2018 6,381  
2019 24,950  
2020 18,207  
2021 6,656  
2022 6,078  
2023 and Thereafter $ 3,872  
v3.10.0.1
Balance Sheet Details (Details) - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 31, 2017
Dec. 30, 2017
Inventory      
Raw materials $ 33,627   $ 27,568
Work in process 56,401   59,662
Finished goods 121,917   127,474
Total inventory 211,945 $ 214,465 214,704
Property, plant and equipment, net      
Property, plant and equipment, gross 403,579   385,894
Less accumulated depreciation and amortization (271,656)   (249,952)
Total property, plant and equipment, net 131,923   135,942
Accrued expenses      
Loss contingency related to non-cancelable purchase commitments 7,601   6,379
Professional and other consulting fees 7,203   5,305
Taxes payable 3,668   3,707
Restructuring 2,887   5,490
Right of return 7,514   0
Other accrued expenses 14,451   18,901
Total accrued expenses 43,324 $ 55,427 39,782
Computer hardware      
Property, plant and equipment, net      
Property, plant and equipment, gross 14,887   13,881
Computer software      
Property, plant and equipment, net      
Property, plant and equipment, gross 32,844   32,521
Laboratory and manufacturing equipment      
Property, plant and equipment, net      
Property, plant and equipment, gross 263,137   246,380
Land and building      
Property, plant and equipment, net      
Property, plant and equipment, gross 12,352   12,347
Furniture and fixtures      
Property, plant and equipment, net      
Property, plant and equipment, gross 2,543   2,474
Leasehold and building improvements      
Property, plant and equipment, net      
Property, plant and equipment, gross 43,128   43,475
Construction in progress      
Property, plant and equipment, net      
Property, plant and equipment, gross 34,688   34,816
Enterprise resource planning systems      
Property, plant and equipment, net      
Property, plant and equipment, gross 13,100   11,400
Total property, plant and equipment, net $ 4,400   $ 4,700
v3.10.0.1
Restructuring and Related Costs - Restructuring and Other Related Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Dec. 30, 2017
Sep. 29, 2018
Restructuring Cost and Reserve [Line Items]      
Total     $ 1,758
Cost of Revenue      
Restructuring Cost and Reserve [Line Items]      
Severance and related expenses $ 7   50
Facilities 0   0
Asset impairment 0   0
Total 7   50
Operating Expenses      
Restructuring Cost and Reserve [Line Items]      
Severance and related expenses 28   1,873
Facilities 163 $ 7,300 (874)
Asset impairment 0   (74)
Total 191   1,708
Licensing Agreements | Cost of Revenue      
Restructuring Cost and Reserve [Line Items]      
Asset impairment 0   0
Licensing Agreements | Operating Expenses      
Restructuring Cost and Reserve [Line Items]      
Asset impairment $ 0   $ 783
v3.10.0.1
Restructuring and Related Costs - Schedule of Restructuring Reserve by Type of Cost (Details)
$ in Thousands
9 Months Ended
Sep. 29, 2018
USD ($)
Restructuring Reserve [Roll Forward]  
Beginning balance $ 10,619
Charges (Credits) 1,758
Cash (5,917)
Non-cash Settlements and Other (336)
Ending balance 6,124
Severance and related expenses  
Restructuring Reserve [Roll Forward]  
Beginning balance 3,672
Charges (Credits) 1,923
Cash (4,529)
Non-cash Settlements and Other (28)
Ending balance 1,038
Facilities  
Restructuring Reserve [Roll Forward]  
Beginning balance 6,947
Charges (Credits) (874)
Cash (1,388)
Non-cash Settlements and Other (40)
Ending balance 4,645
Asset impairment  
Restructuring Reserve [Roll Forward]  
Beginning balance 0
Charges (Credits) (74)
Cash 0
Non-cash Settlements and Other 74
Ending balance 0
License impairment  
Restructuring Reserve [Roll Forward]  
Beginning balance 0
Charges (Credits) 783
Cash 0
Non-cash Settlements and Other (342)
Ending balance $ 441
v3.10.0.1
Restructuring and Related Costs - Narrative (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 29, 2018
Dec. 30, 2017
Restructuring Cost and Reserve [Line Items]    
Restructuring charges $ 1,758  
Restructuring liability 6,124 $ 10,619
License impairment    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges 783  
Restructuring liability 441 0
Facility closures    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges (874)  
Restructuring liability 4,645 6,947
Severance and related expenses    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges 1,923  
Restructuring liability $ 1,038 $ 3,672
v3.10.0.1
Accumulated Other Comprehensive Income (Loss) (Details)
$ in Thousands
9 Months Ended
Sep. 29, 2018
USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]  
Beginning balance $ (879)
Beginning balance 6,254
Net current-period other comprehensive loss (71)
Net current-period other comprehensive loss (26,039)
Ending balance (950)
Ending balance (19,785)
Unrealized Loss on Other Available-for-Sale Securities  
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]  
Beginning balance (418)
Net current-period other comprehensive loss 274
Ending balance (144)
Foreign Currency Translation  
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]  
Beginning balance 7,551
Net current-period other comprehensive loss (26,242)
Ending balance $ (18,691)
v3.10.0.1
Basic and Diluted Net Loss Per Common Share - Antidilutive Shares (Details) - USD ($)
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
May 31, 2018
Dec. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Antidilutive securities excluded from earnings per share computation (in shares) 11,253 10,594 11,870 10,876    
Stock options            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Antidilutive securities excluded from earnings per share computation (in shares) 1,115 1,406 1,140 1,482    
RSUs            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Antidilutive securities excluded from earnings per share computation (in shares) 7,406 6,359 8,141 6,877    
PSUs            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Antidilutive securities excluded from earnings per share computation (in shares) 1,219 1,434 1,336 1,437    
ESPP shares            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Antidilutive securities excluded from earnings per share computation (in shares) 1,513 1,395 1,253 1,080    
2.125% Convertible Senior Notes Due September 1, 2024            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Principal amount $ 402,500,000   $ 402,500,000      
Debt instrument interest percentage 2.125%   2.125%      
1.75% Convertible Senior Notes Due June 1, 2018            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Principal amount         $ 150,000,000 $ 150,000,000
Debt instrument interest percentage 1.75% 1.75% 1.75% 1.75% 1.75%  
v3.10.0.1
Basic and Diluted Net Loss Per Common Share - Computation of EPS (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Earnings Per Share [Abstract]        
Net loss $ (32,610) $ (37,231) $ (80,828) $ (120,521)
Weighted average common shares outstanding - basic and diluted (in shares) 153,492 148,777 152,028 147,367
Net loss per common share - basic and diluted (in dollars per share) $ (0.21) $ (0.25) $ (0.53) $ (0.82)
v3.10.0.1
Convertible Senior Notes - Narrative (Details)
$ / shares in Units, shares in Millions
1 Months Ended 9 Months Ended
Jun. 01, 2018
USD ($)
Sep. 30, 2018
USD ($)
d
Sep. 29, 2018
USD ($)
$ / shares
shares
Sep. 30, 2017
USD ($)
Sep. 26, 2015
USD ($)
Jun. 30, 2018
Jun. 29, 2018
$ / shares
May 31, 2018
Dec. 30, 2017
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Proceeds from issuance of debt, net     $ 391,431,000   $ 0        
Payment of capped call     $ 48,880,000 $ 0          
Closing price of common stock (in usd per share) | $ / shares             $ 7.30    
2.125% Convertible Senior Notes Due September 1, 2024                  
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Proceeds from issuance of debt, net   $ 391,400,000              
Payment of capped call   $ 48,900,000              
Strike price (in dollars per share) | $ / shares     $ 9.87            
Cap price (in dollars per share) | $ / shares     $ 15.19            
Number of shares covered by capped transactions (in shares) | shares     40.8            
Conversion ratio   101.2812              
Debt instrument, convertible, if-converted value in excess of principal   $ 1,000              
Conversion price (in dollars per share) | $ / shares     $ 9.87            
Purchase price as a percentage on principal amount of the notes upon the occurrence of a fundamental change   100.00%              
Net equity component carrying amount     $ 128,700,000            
Deferred tax liability     $ 30,900,000            
Additional effective rate of interest to be used on amortized carrying value     10.07%            
Fair value of convertible debt     $ 403,500,000            
Debt instrument interest percentage     2.125%            
2.125% Convertible Senior Notes, Circumstance 1                  
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Threshold trading days | d   20              
Threshold consecutive trading days | d   30              
Convertible threshold minimum percentage   130.00%              
2.125% Convertible Senior Notes, Circumstance 2                  
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Debt instrument, convertible, if-converted value in excess of principal   $ 1,000              
Threshold trading days | d   5              
Threshold consecutive trading days | d   5              
Convertible, threshold maximum percentage   98.00%              
1.75% Convertible Senior Notes Due June 1, 2018                  
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Repayment of debt $ 150,000,000                
Net equity component carrying amount                 $ 43,300,000
Additional effective rate of interest to be used on amortized carrying value       10.23%   10.23%      
Repayment of final coupon interest $ 1,300,000                
Debt instrument interest percentage     1.75% 1.75%       1.75%  
v3.10.0.1
Convertible Senior Notes - Components of Convertible Senior Notes (Details) - USD ($)
3 Months Ended
Sep. 29, 2018
May 31, 2018
Dec. 30, 2017
Debt Instrument [Line Items]      
Net carrying amount $ 262,580,000   $ 0
Net carrying amount 0   144,928,000
2.125% Convertible Senior Notes Due September 1, 2024      
Debt Instrument [Line Items]      
Principal amount 402,500,000    
Unamortized discount (131,401,000)    
Unamortized issuance cost (8,519,000)    
Net carrying amount $ 262,580,000    
Debt instrument term 72 months    
1.75% Convertible Senior Notes Due June 1, 2018      
Debt Instrument [Line Items]      
Principal amount   $ 150,000,000 150,000,000
Unamortized discount     (4,670,000)
Unamortized issuance cost     (402,000)
Net carrying amount     $ 144,928,000
v3.10.0.1
Convertible Senior Notes - Interest Expense Recognized Related to Notes Prior to Capitalization of Interest (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
2.125% Convertible Senior Notes Due September 1, 2024        
Debt Instrument [Line Items]        
Contractual interest expense     $ 475  
Amortization of debt issuance costs     102  
Amortization of debt discount     1,578  
Total interest expense     2,155  
1.75% Convertible Senior Notes Due June 1, 2018        
Debt Instrument [Line Items]        
Contractual interest expense $ 0 $ 656 1,094 $ 1,969
Amortization of debt issuance costs 0 228 402 665
Amortization of debt discount 0 2,643 4,671 7,734
Total interest expense $ 0 $ 3,527 $ 6,167 $ 10,368
v3.10.0.1
Stockholders' Equity - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 29, 2018
USD ($)
shares
Sep. 30, 2017
USD ($)
Sep. 29, 2018
USD ($)
shares
Sep. 30, 2017
USD ($)
Jun. 29, 2018
$ / shares
May 31, 2017
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Closing price of common stock (in usd per share) | $ / shares         $ 7.30  
Restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of units granted (in shares) 200,000   3,524,000      
Amortization of stock-based compensation | $ $ 7.3 $ 22.7 $ 7.9 $ 24.0    
PSUs            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of units granted (in shares)     505,000      
Performance stock unit grants            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Amortization of stock-based compensation | $ $ 2.2 $ 6.9 $ 2.7 $ 7.3    
2016 Equity Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Increase in shares authorized (in shares)           1,500,000.0
Reserved common stock for issuance of options (in shares) 15,400,000   15,400,000      
2016 Plan maximum term     10 years      
2016 Equity Incentive Plan | PSUs | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ranges of number of shares issued on vesting of PSUs     0      
2016 Equity Incentive Plan | PSUs | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ranges of number of shares issued on vesting of PSUs     2.0      
2016 Equity Incentive Plan | PSUs | Existing employees | Vesting 1            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Duration of grants based on shareholder return of common stock price versus designated index     1 year      
2016 Equity Incentive Plan | PSUs | Existing employees | Vesting 2            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Duration of grants based on shareholder return of common stock price versus designated index     2 years      
2016 Equity Incentive Plan | PSUs | Existing employees | Vesting 3            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Duration of grants based on shareholder return of common stock price versus designated index     3 years      
2007 Equity Incentive Plan | PSUs | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ranges of number of shares issued on vesting of PSUs     0      
2007 Equity Incentive Plan | PSUs | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Ranges of number of shares issued on vesting of PSUs     2.0      
2007 Equity Incentive Plan | PSUs | Existing employees | Vesting 1            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Duration of grants based on shareholder return of common stock price versus designated index     1 year      
2007 Equity Incentive Plan | PSUs | Existing employees | Vesting 2            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Duration of grants based on shareholder return of common stock price versus designated index     2 years      
2007 Equity Incentive Plan | PSUs | Existing employees | Vesting 3            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Duration of grants based on shareholder return of common stock price versus designated index     3 years      
v3.10.0.1
Stockholders' Equity - Equity Award Activity - Options (Details) - Stock options
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 29, 2018
USD ($)
$ / shares
shares
Number of Stock Options  
Stock options, beginning balance (in shares) | shares 1,397
Stock options, granted (in shares) | shares 0
Stock options, exercised (in shares) | shares (229)
Stock options, canceled (in shares) | shares (53)
Stock options, ending balance (in shares) | shares 1,115
Stock options, exercisable (in shares) | shares 1,115
Weighted-Average Exercise Price Per Share  
Weighted-average exercise price per share, beginning balance (in usd per share) | $ / shares $ 8.11
Weighted-average exercise per share, options granted (in usd per share) | $ / shares 0.00
Weighted-average exercise price per share, options exercised (in usd per share) | $ / shares 7.43
Weighted-average exercise price per share, options canceled (in usd per share) | $ / shares 11.57
Weighted-average exercise price per share, ending balance (in usd per share) | $ / shares 8.09
Average exercise price per share, exercisable (in usd per share) | $ / shares $ 8.09
Aggregate Intrinsic Value  
Aggregate intrinsic value, beginning balance | $ $ 1
Aggregate intrinsic value, options exercised | $ 496
Aggregate intrinsic value, ending balance | $ 53
Aggregate intrinsic value, exercisable | $ $ 53
v3.10.0.1
Stockholders' Equity - Equity Award Activity - RSUs (Details) - Restricted stock units - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 29, 2018
Number of Restricted Stock Units    
Number of units, beginning balance (in shares)   6,791
Number of units granted (in shares) 200 3,524
Number of units released (in shares)   (2,174)
Number units canceled (in shares)   (735)
Number of units, ending balance (in shares) 7,406 7,406
Weighted- Average Grant Date Fair Value Per Share    
Weighted-average grant date fair value per share, beginning balance (in usd per share)   $ 11.55
Weighted-average grant date fair value per share, granted (in usd per share)   10.84
Weighted-average grant date fair value per share, released (in usd per share)   13.06
Weighted-average grant date fair value per share, canceled (in usd per share)   11.06
Weighted-average grant date fair value per share, ending balance (in usd per share) $ 10.81 $ 10.81
Aggregate Intrinsic Value    
Aggregate intrinsic value, beginning balance   $ 42,988
Aggregate intrinsic value, RSUs released   24,232
Aggregate intrinsic value, ending balance $ 54,063 $ 54,063
v3.10.0.1
Stockholders' Equity - Equity Award Activity - PSUs (Details) - PSUs - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 29, 2018
Number of Performance Stock Units  
Number of units, beginning balance (in shares) 1,367
Number of units granted (in shares) 505
Number of units released (in shares) (28)
Number units canceled (in shares) (625)
Number of units, ending balance (in shares) 1,219
Number of restricted stock units, expected to vest (in shares) 863
Weighted- Average Grant Date Fair Value Per Share  
Weighted-average grant date fair value per share, beginning balance (in usd per share) $ 16.28
Weighted-average grant date fair value per share, granted (in usd per share) 15.87
Weighted-average grant date fair value per share, released (in usd per share) 15.93
Weighted-average grant date fair value per share, canceled (in usd per share) 16.01
Weighted-average grant date fair value per share, ending balance (in usd per share) $ 16.25
Aggregate Intrinsic Value  
Aggregate intrinsic value, beginning balance $ 8,651
Aggregate Intrinsic Value, PSUs released 273
Aggregate intrinsic value, ending balance 8,901
Aggregate intrinsic value, expected to vest $ 6,301
v3.10.0.1
Stockholders' Equity - Total Stock Based Compensation Cost for Instruments Granted but Not Yet Amortized (Details)
$ in Thousands
9 Months Ended
Sep. 29, 2018
USD ($)
RSUs  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation expense, net $ 64,016
Weighted-average period 2 years 8 months 1 day
PSUs  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation expense, net $ 9,172
Weighted-average period 1 year 6 months
v3.10.0.1
Stockholders' Equity - Estimated Fair Value of ESPP, Valuation Assumptions (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation expense $ 11,367 $ 12,167 $ 34,394 $ 35,424
ESPP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Volatility 48.00% 47.00%    
Risk-free interest rate 2.31% 1.16%    
Expected life 6 months 6 months 6 months 6 months
Estimated fair value (in usd per share) $ 2.47 $ 2.44    
Total stock-based compensation expense $ 1,477 $ 1,502 $ 4,369 $ 4,575
ESPP | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Volatility     48.00% 47.00%
Risk-free interest rate     1.90% 0.81%
Estimated fair value (in usd per share)     $ 2.47 $ 2.44
ESPP | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Volatility     62.00% 51.00%
Risk-free interest rate     2.31% 1.16%
Estimated fair value (in usd per share)     $ 3.13 $ 3.46
v3.10.0.1
Stockholders' Equity - Valuation Assumptions (Details) - PSUs
9 Months Ended 12 Months Ended
Sep. 29, 2018
$ / shares
Dec. 30, 2017
$ / shares
Dec. 31, 2016
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Index volatility 33.00%   18.00%
Infinera volatility 58.00%   55.00%
Volatility minimum   55.00%  
Volatility maximum 59.00% 56.00%  
Risk-free interest rate minimum 2.37% 1.41% 0.95%
Risk-free interest rate maximum 2.40% 1.63% 1.07%
Estimated fair value (in dollars per share) $ 15.87    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Index volatility   33.00%  
Correlation with index/index component 0.04 0.10 0.58
Estimated fair value (in dollars per share) $ 14.99 $ 15.23 $ 10.31
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Index volatility   34.00%  
Correlation with index/index component 0.48 0.49 0.59
Estimated fair value (in dollars per share) $ 19.46 $ 17.35 $ 16.62
v3.10.0.1
Stockholders' Equity - Nonvested Performance Based Units Activity By Grant Year (Details) - PSUs
shares in Thousands
9 Months Ended
Sep. 29, 2018
shares
Number of Performance Stock Units  
Number of units, beginning balance (in shares) 1,367
Number of units granted (in shares) 505
Number of units released (in shares) (28)
Number units canceled (in shares) (625)
Number of units, ending balance (in shares) 1,219
2015  
Number of Performance Stock Units  
Number of units, beginning balance (in shares) 77
Number of units granted (in shares) 0
Number of units released (in shares) 0
Number units canceled (in shares) (77)
Number of units, ending balance (in shares) 0
2016  
Number of Performance Stock Units  
Number of units, beginning balance (in shares) 420
Number of units granted (in shares) 0
Number of units released (in shares) (28)
Number units canceled (in shares) (196)
Number of units, ending balance (in shares) 196
2017  
Number of Performance Stock Units  
Number of units, beginning balance (in shares) 870
Number of units granted (in shares) 0
Number of units released (in shares) 0
Number units canceled (in shares) (352)
Number of units, ending balance (in shares) 518
2018  
Number of Performance Stock Units  
Number of units, beginning balance (in shares) 0
Number of units granted (in shares) 505
Number of units released (in shares) 0
Number units canceled (in shares) 0
Number of units, ending balance (in shares) 505
v3.10.0.1
Stockholders' Equity - Balance Sheet and Statements of Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 30, 2017
Effects Of Stock Based Compensation [Line Items]          
Stock-based compensation effects included in net loss before income taxes $ 9,989 $ 10,883 $ 30,485 $ 31,796  
Cost of revenue – amortization from balance sheet 1,378 1,284 3,909 3,628  
Total stock-based compensation expense 11,367 12,167 34,394 35,424  
Cost of revenue          
Effects Of Stock Based Compensation [Line Items]          
Stock-based compensation effects included in net loss before income taxes 590 779 1,092 2,337  
Research and development          
Effects Of Stock Based Compensation [Line Items]          
Stock-based compensation effects included in net loss before income taxes 4,077 4,040 12,593 12,004  
Sales and marketing          
Effects Of Stock Based Compensation [Line Items]          
Stock-based compensation effects included in net loss before income taxes 2,744 3,025 8,688 9,024  
General and administration          
Effects Of Stock Based Compensation [Line Items]          
Stock-based compensation effects included in net loss before income taxes 2,578 $ 3,039 8,112 $ 8,431  
Stock-based compensation effects in inventory          
Effects Of Stock Based Compensation [Line Items]          
Stock-based compensation effects in inventory $ 4,827   $ 4,827   $ 5,255
v3.10.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Income Tax Disclosure [Abstract]        
Provision (benefit) for income taxes $ 135 $ 211 $ (667) $ (459)
Pre-tax income (loss) (32,475) $ (37,020) (81,495) $ (120,980)
Income tax benefit increase $ 100      
Decrease in provision for income taxes     $ 200  
v3.10.0.1
Segment Information (Details)
$ in Thousands
9 Months Ended
Sep. 29, 2018
USD ($)
segment
Dec. 30, 2017
USD ($)
Geographic Information For Property Plant And Equipment [Line Items]    
Number of business activities | segment 1  
Number of reporting segments | segment 1  
Total property, plant and equipment, net $ 131,923 $ 135,942
United States    
Geographic Information For Property Plant And Equipment [Line Items]    
Total property, plant and equipment, net 124,975 128,582
Other Americas    
Geographic Information For Property Plant And Equipment [Line Items]    
Total property, plant and equipment, net 1,590 661
Europe, Middle East and Africa    
Geographic Information For Property Plant And Equipment [Line Items]    
Total property, plant and equipment, net 3,003 3,527
Asia Pacific    
Geographic Information For Property Plant And Equipment [Line Items]    
Total property, plant and equipment, net $ 2,355 $ 3,172
v3.10.0.1
Guarantees - Activity Related to Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Apr. 01, 2017
Sep. 29, 2018
Sep. 30, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]          
Beginning balance $ 30,237 $ 32,400 $ 40,342 $ 30,909 $ 40,342
Charges to operations 5,680 4,550   15,203 14,231
Utilization (4,391) (3,484)   (12,896) (10,773)
Change in estimate (1,044) (1,304)   (2,734) (11,638)
Balance at the end of the period $ 30,482 $ 32,162   $ 30,482 $ 32,162
Product Quality Improvements          
Movement in Standard Product Warranty Accrual [Roll Forward]          
Change in estimate     $ (2,200)    
v3.10.0.1
Guarantees - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 29, 2018
Dec. 30, 2017
Guarantor Obligations [Line Items]    
Outstanding standby letters of credit $ 3.7 $ 4.2
Debt instrument, collateral amount 5.0 5.2
Banker's guarantees or performance bonds    
Guarantor Obligations [Line Items]    
Line of credit facility, remaining borrowing capacity 1.6 1.6
Proceeds from lines of credit 0.0 0.0
Letter of credit    
Guarantor Obligations [Line Items]    
Customer performance guarantee 1.8 2.2
Value added tax license 1.2 1.3
Property leases $ 0.7 $ 0.7
v3.10.0.1
Litigation and Contingencies - Additional Information (Details)
$ in Millions
3 Months Ended
Sep. 29, 2018
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
Release of accruals for loss contingencies $ 5.1
v3.10.0.1
Subsequent Events (Details) - Coriant - Subsequent event
$ in Millions
Oct. 01, 2018
USD ($)
shares
Subsequent Event [Line Items]  
Cash payment | $ $ 154
Number of shares issued in acquisition (in shares) | shares 20,975,384