Audit Information |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Audit Information [Abstract] | |
| Auditor Firm ID | 34 |
| Auditor Name | DELOITTE & TOUCHE LLP |
| Auditor Location | San Jose, California |
CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Allowance for doubtful accounts receivable, current | $ 153 | $ 153 |
| Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Preferred stock, shares issued (in shares) | 0 | 0 |
| Preferred stock, shares outstanding (in shares) | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock, shares authorized (in shares) | 400,000,000 | 400,000,000 |
| Common stock, shares issued (in shares) | 136,951,956 | 129,343,524 |
| Common stock, shares outstanding (in shares) | 136,951,956 | 129,343,524 |
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Statement of Comprehensive Income [Abstract] | |||
| Net loss | $ (1,458) | $ (6,221) | $ (9,605) |
| Other comprehensive (loss) income | |||
| Change in net unrealized (loss) gain on investments, net of tax | (5,729) | 1,037 | 668 |
| Change in foreign currency translation adjustments, net of tax | (1,135) | 1,589 | (745) |
| Other comprehensive (loss) income | (6,864) | 2,626 | (77) |
| Total comprehensive loss | $ (8,322) | $ (3,595) | $ (9,682) |
Background and Basis of Presentation |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Background and Basis of Presentation | 1. Background and Basis of Presentation Company and Background Chegg, Inc. (“we,” “us,” “our,” “Company” or “Chegg”), headquartered in Santa Clara, California, was incorporated as a Delaware corporation in July 2005. Millions of people all around the world Learn with Chegg. Our mission is to improve learning and learning outcomes by putting students first. We support life-long learners starting with their academic journey and extending into their careers. The Chegg platform provides products and services to support learners to help them better understand their academic course materials, and also provides personal and professional development skills training, to help them achieve their learning goals. Basis of Presentation Our fiscal year ends on December 31 and in this report we refer to the year ended December 31, 2021, December 31, 2020, and December 31, 2019 as 2021, 2020, and 2019, respectively. Reclassification of Prior Period Presentation In order to conform with current period presentation, $6.6 million of current operating lease liabilities have been reclassified to accrued liabilities on our consolidated balance sheet as of December 31, 2020. This change in presentation does not affect previously reported results.
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Significant Accounting Policies |
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Dec. 31, 2021 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Significant Accounting Policies | Significant Accounting Policies Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. Significant estimates, assumptions, and judgments are used for, but not limited to: revenue recognition, share-based compensation expense including grant-date fair value of PSUs with a market-based condition and estimated forfeitures, accounting for income taxes, useful lives and salvage value assigned to our textbook library, useful lives assigned to long-lived assets for depreciation and amortization, impairment of goodwill and long-lived assets, the valuation of acquired intangible assets, and internal-use software and website development costs. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management’s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations. Principles of Consolidation The consolidated financial statements include the accounts of Chegg and our wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The consolidated financial statements have been prepared in accordance with U.S. GAAP. Cash and Cash Equivalents and Restricted Cash We consider all highly liquid investments with an original maturity date of three months or less from the date of purchase to be cash equivalents. Our cash and cash equivalents consist of cash and money market accounts at financial institutions, and are stated at cost, which approximates fair value. We classify certain restricted cash balances within other current assets and other assets on the accompanying consolidated balance sheets based upon the term of the remaining restrictions. Fair Value Measurements We account for certain assets and liabilities at fair value. We have established a fair value hierarchy used to determine the fair value of our financial instruments as follows: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments. Level 3—Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value; the inputs require significant management judgment or estimation. A financial instrument’s classification within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. Investments We hold investments in commercial paper, corporate debt securities, U.S. treasury securities and agency bonds. We classify our investments as available-for-sale that are either short or long-term based on the remaining contractual maturity of the investment. Our investments are carried at estimated fair value with any unrealized gains and losses, unrelated to credit loss factors, net of taxes, included in other comprehensive (loss) income on our consolidated statements of stockholders’ equity. Unrealized losses related to credit loss factors are recorded through an allowance for credit losses in other (expense) income, net on our consolidated statements of operations, rather than as a reduction to other comprehensive (loss) income, when a decline in fair value has resulted from a credit loss. When evaluating whether an investment's unrealized losses are related to credit factors, we review factors such as the extent to which fair value is below its cost basis, any changes to the credit rating of the security, adverse conditions specifically related to the security, changes in market interest rates and our intent to sell, or whether it is more likely than not we will be required to sell, before recovery of cost basis. We invest in highly rated securities with a weighted average maturity of twelve months or less. In addition, our investment policy limits the amount of our credit exposure to any one issuer or industry sector and requires investments to be investment grade, with the primary objective of preserving capital and maintaining liquidity. Fair values were determined for each individual security in the investment portfolio. We determine realized gains or losses on the sale of investments on a specific identification method, and record such gains or losses as other (expense) income, net. The estimated fair value of our investments are based on quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. Other than our money market funds and U.S. treasury securities, we classify our fixed income available-for-sale investments as having Level 2 inputs. The valuation techniques used to measure the fair value of our investments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models such as discounted cash flow techniques. We do not hold any investments valued with a Level 3 input. Accounts Receivable, Net of Allowance Accounts receivable are recorded at the invoiced amount and are non-interest bearing. We generally grant uncollateralized credit terms to our customers, which include textbook wholesalers and advertising customers. We maintain an allowance to account for potentially uncollectible receivables. We assess the creditworthiness of our customers based on multiple sources of information, and analyze such factors as our historical bad debt experience, industry and geographic concentrations of credit risk, economic trends, and customer payment history. This assessment requires significant judgment. Because of this assessment, we maintain an allowance for estimated losses resulting from the inability of certain customers to make all of their required payments. In making this estimate, we analyze historical payment performance and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off as a decrease to the allowance when all collection efforts have been exhausted and an account is deemed uncollectible. Concentration of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents, restricted cash, and investments in highly liquid instruments in accordance with our investment policy. We place the majority of our cash and cash equivalents and restricted cash with financial institutions in the United States that we believe to be of high credit quality, and accordingly minimal credit risk exists with respect to these instruments. Certain of our cash balances held with a financial institution are in excess of Federal Deposit Insurance Corporation limits. Our investment portfolio consists of investments diversified among security types, industries and issuers. Our investments were held and managed by recognized financial institutions that followed our investment policy with the main objective of preserving capital and maintaining liquidity. Concentrations of credit risk with respect to accounts receivables exist to the full extent of amounts presented in the financial statements. We had no customers that represented over 10% of our net accounts receivable balance as of December 31, 2021 and we had one customer that represented 10% of our net accounts receivable balance as of December 31, 2020. No customers represented over 10% of net revenues during the years ended December 31, 2021, 2020 or 2019. Property and Equipment Property and equipment are recorded at cost less accumulated depreciation and content amortization. Depreciation and content amortization are computed using the straight-line method over the following estimated useful lives of the assets:
Depreciation and content amortization expense are generally classified within the corresponding cost of revenues and operating expenses categories on our consolidated statements of operations. The cost of maintenance and repairs is expensed as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation and amortization are removed from their respective accounts, and any gain or loss on such sale or disposal is reflected in income from operations. Internal-Use Software and Website Development Costs We capitalize certain costs associated with software developed or obtained for internal use and website and application development. We capitalize costs when preliminary development efforts are successfully completed, management has authorized and committed project funding and it is probable that the project will be completed and the software will be used as intended. Such costs are amortized on a straight-line basis over a three year estimated useful life of the related asset. Costs incurred prior to meeting these criteria, together with costs incurred for training and maintenance, are expensed as incurred. Costs incurred for enhancements that are expected to result in additional material functionality are capitalized and amortized over the estimated useful life of the upgrades. Business Combinations We allocate the fair value of purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired through a business combination based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets acquired and liabilities assumed is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets. Significant estimates in valuing certain intangible assets include, but are not limited to, future expected cash flows from acquired users, acquired technology, and trade names from a market participant perspective, useful lives and discount rates. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, which is not to exceed one year from the acquisition date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings. Goodwill and Indefinite-Lived Intangible Asset Goodwill represents the excess of the fair value of purchase consideration paid over the estimated fair value of assets acquired and liabilities assumed in a business combination. Our indefinite-lived intangible asset represents the internships.com trade name. Goodwill and our indefinite-lived intangible asset are not amortized but rather tested for impairment at least annually on October 1, or more frequently if certain events or indicators of impairment occur between annual impairment tests. We first assess qualitative factors to determine whether it is necessary to perform the quantitative impairment test. In our qualitative assessment, we consider factors including economic conditions, industry and market conditions and developments, overall financial performance and other relevant entity-specific events in determining whether it is more likely than not that the fair value of our reporting unit is less than the carrying amount. We completed our annual impairment test on October 1st of 2021 and 2020, each of which did not result in any impairment as our qualitative assessment did not indicate that it is more likely than not that the fair value of our reporting unit is less than the carrying amount. Acquired Intangible Assets and Other Long-Lived Assets Acquired intangible assets with finite useful lives, which include developed technology, content library, customer lists, trade names, domain names, and non-compete agreements, are amortized over their estimated useful lives. We assess the impairment of acquired intangible assets and other long-lived assets when events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Leases We determine if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets and operating lease liabilities within current liabilities and long-term liabilities on our consolidated balance sheets. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. Our leases do not provide an implicit rate and therefore we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future minimum lease payments. Our incremental borrowing rate is estimated based on the estimated rate incurred to borrow, on a collateralized basis over a similar term as our leases, an amount equal to the lease payments in a similar economic environment. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise such options. We do not record leases on our consolidated balance sheet with a term of one year or less. We do not separate lease and non-lease components but rather account for each separate component as a single lease component for all underlying classes of assets. Some of our leases include payments that are dependent on an index, such as the Consumer Price Index (CPI), and our minimum lease payments include payments based on the index at inception with any future changes in such indices recognized as an expense in the period of change. Where leases contain escalation clauses, rent abatement, or concessions, such as rent holidays and landlord or tenant incentives or allowances, we apply them in the determination of straight-line operating lease cost over the lease term. Strategic Investments We have entered into strategic investments that do not have readily determinable fair values and have elected to account for these investments at cost, minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer, if any. Strategic investments are included in other assets on our consolidated balance sheets. We assess our strategic investments for impairment whenever events or changes in circumstances indicate that they may be impaired. The factors we consider in our evaluation include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee or factors that raise significant concerns about the investee’s ability to continue as a going concern, such as negative cash flows from operations or working capital deficiencies. Convertible Senior Notes, net In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $700 million in aggregate principal amount of 0.125% convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total gross proceeds of $800 million. In April 2018, we issued $345 million in aggregate principal amount of 0.25% convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the “notes.” The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our consolidated balance sheets. In accounting for extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our consolidated statements of operations. Textbook Library Beginning in January 2020, we began our transition back to print textbook ownership by purchasing print textbooks to establish our textbook library. We consider our print textbook library to be a long-term productive asset and, as such, classify it as a non-current asset on our consolidated balance sheets. All print textbooks in our textbook library are stated at cost, which includes the purchase price less accumulated depreciation. We write down textbooks on a book-by-book basis for lost, damaged, or excess print textbooks. We depreciate our print textbooks, less an estimated salvage value, over an estimated useful life of four years using an accelerated method of depreciation, as we estimate this method most accurately reflects the actual pattern of decline in their economic value. The salvage value considers the historical trend and projected proceeds for print textbooks. The useful life is determined based on the estimated time period in which the print textbooks are held and rented. We review the estimated salvage value and useful life of our print textbook library on an ongoing basis. Write-downs for print textbooks, print textbook depreciation expense, the gain or loss on print textbooks liquidated, and the net book value of print textbooks purchased by students at the end of the term or on a just-in-time basis are recorded in cost of revenues on our consolidated statements of operations and classified as adjustments to cash flows from operating activities. Cash outflows for the acquisition of print textbooks net of changes in related accounts payable and accrued liabilities, and cash inflows received from the proceeds from the disposition of print textbooks net of changes in related accounts receivable, are classified as cash flows from investing activities on our consolidated statements of cash flows. Revenue Recognition and Deferred Revenue We recognize revenues when the control of goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Revenues are presented net of sales tax collected from customers to be remitted to governmental authorities and net of allowances for estimated cancellations and customer returns, which are based on historical data. Customer refunds from cancellations and returns are recorded as a reduction to revenues. We determine revenue recognition through the following steps: •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 •Recognition of revenue when, or as, we satisfy a performance obligation We generate revenues from our Chegg Services product line which primarily includes Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, Mathway and Thinkful. Revenues from Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, and Mathway are primarily recognized ratably over the monthly subscription period. Revenues from Thinkful are recognized either ratably over the term of the course, generally six months, or upon completion of the lessons, depending on the instruction type of the course. Revenues from our Required Materials product line includes revenues from print textbooks that we own or that are owned by a partner as well as revenues from eTextbooks. Beginning in 2020, our Required Materials product line includes operating leases with students for the rental of print textbooks that we own. Operating lease income is recognized as the total transaction amount, paid upon commencement of the lease, ratably over the lease term or rental term, generally a - to five-month period. Students generally have the option to extend the term of their rental or purchase the print textbook at the end of the term otherwise the print textbook is returned to our print textbook library for future rental. If a student chooses to purchase or not return the print textbook at the end of their rental term, we charge the student for the book and recognize the revenues immediately. Additionally, we provide students the ability to purchase print textbooks on a just-in-time basis and recognize revenues immediately upon shipment. Revenues from print textbooks owned by a partner are recognized as a revenue share on the total transaction amount of a rental or sale transaction immediately when a print textbook ships to a student. Shipping and handling activities are expensed as incurred. Revenues from eTextbooks are recognized ratably over the contractual period, generally a - to five-month period. Some of our customer arrangements include multiple performance obligations. We have determined these performance obligations qualify as distinct performance obligations, as the customer can benefit from the service on its own or together with other resources that are readily available to the customer, and our promise to transfer the service is separately identifiable from other promises in the contract. For these arrangements that contain multiple performance obligations, we allocate the transaction price based on the relative standalone selling price (SSP) method by comparing the SSP of each distinct performance obligation to the total value of the contract. We determine the SSP based on our historical pricing and discounting practices for the distinct performance obligation when sold separately. If the SSP is not directly observable, we estimate the SSP by considering information such as market conditions, and information about the customer. Additionally, we limit the amount of revenues recognized for delivered promises to the amount that is not contingent on future delivery of services or other future performance obligations. Some of our customer arrangements may include an amount of variable consideration in addition to a fixed revenue share that we earn. This variable consideration can either increase or decrease the total transaction price depending on the nature of the variable consideration. We estimate the amount of variable consideration that we will earn at the inception of the contract, adjusted during each period, and include an estimated amount each period. For sales of third-party products, we evaluate whether we are acting as a principal or an agent. Where our role in a transaction is that of principal, revenues are recognized on a gross basis. This requires revenue to comprise the gross value of the transaction billed to the customer, after trade discounts, with any related expenditure charged as a cost of revenues. Where our role in a transaction is that of an agent, revenues are recognized on a net basis with revenues representing the margin earned. Our determination is based on our evaluation of whether we control the specified goods or services prior to transferring them to the customer. When deciding the most appropriate basis for presenting revenues or costs of revenues, both the legal form and substance of the agreement between us and our business partners are reviewed to determine each party’s respective role in the transaction. In relation to print textbooks owned by a partner, we recognize revenues on a net basis based on our role in the transaction as an agent as we have concluded that we do not control the use of the print textbooks, and therefore record only the net revenue share we earn. We have concluded that we control our Chegg Services, print textbooks that we own for rental, purchase at the end of the rental term, or sale on a just-in-time basis, and eTextbook service and therefore we recognize revenues and cost of revenues on a gross basis. Contract assets are contained within other current assets and other assets on our consolidated balance sheets. Contract assets represent the goods or services that we have transferred to a customer before invoicing the customer and primarily consist of the income sharing payment arrangements we offer to students for our Thinkful service. Contract receivables are contained within accounts receivable, net on our consolidated balance sheets and represent unconditional consideration that will be received solely due to the passage of time. Contract liabilities are contained within deferred revenue on our consolidated balance sheets. Deferred revenue primarily consists of advanced payments from students related to rental and subscription performance obligations that have not been satisfied and estimated variable consideration. Deferred revenue related to rental and subscription performance obligations is recognized as revenues ratably over the term for subscriptions or when the services are provided and all other revenue recognition criteria have been met. Deferred revenue related to variable consideration is recognized as revenues during each reporting period based on the estimated amount we believe we will earn over the life of the contract. We have elected a practical expedient to record incremental costs to obtain or fulfill a contract when the amortization period would have been one year or less as incurred. These incremental costs primarily relate to sales commissions costs and are recorded in sales and marketing expense on our consolidated statements of operations. Cost of Revenues Our cost of revenues consists primarily of expenses associated with the delivery and distribution of our products and services. Cost of revenues primarily consists of content amortization expense related to content that we develop, license from publishers for which we pay one-time license fees, or acquire through acquisitions, web hosting fees, customer support fees, payment processing costs, amortization of acquired intangible assets, order fulfillment fees primarily related to outbound shipping and fulfillment as well as publisher content fees for eTextbooks, write-downs for print textbooks, the gain or loss on print textbooks liquidated, the net book value of print textbooks purchased by students at the end of the term or on a just-in-time basis, print textbook depreciation expense, personnel costs and other direct costs related to providing content or services. In addition, cost of revenues includes allocated information technology and facilities costs. Research and Development Costs Our research and development expenses consist of salaries, benefits, and share-based compensation expense for employees on our product, engineering, and technical teams who are responsible for maintaining our website, developing new products, and improving existing products. Research and development costs also include technology costs to support our research and development, and outside services. We expense substantially all of our research and development expenses as they are incurred. Advertising Costs Advertising costs are expensed as incurred and consist primarily of online advertising and marketing promotional expenditures. During the years ended December 31, 2021, 2020, and 2019, advertising costs were approximately $45.1 million, $35.3 million and $24.4 million, respectively. Share-based Compensation Expense Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial and strategic performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial and strategic performance targets is measured based on the closing fair market value of our common stock, PSUs with a market-based condition are estimated using a Monte Carlo simulation model, and ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense on a straight-line basis for RSUs and ESPP and on a graded basis for PSUs. Vesting for all awards is subject to continued service over the requisite service period, which is generally the vesting period. Vesting of PSUs with a market-based condition is also subject to the achievement of certain per share price of our common stock targets and vesting of PSUs with financial and strategic performance targets is also subject to our achievement of specified financial and strategic performance targets. RSUs and PSUs are converted into shares of our common stock upon vesting on a one-for-one basis. RSUs typically vest over or four years, while PSUs with a market-based condition typically vest over a four-year period and PSUs with financial and strategic performance targets typically vest over a three-year period. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. We assess the achievement of financial and strategic performance targets on a quarterly basis and adjust our share-based compensation expense as appropriate. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Income Taxes We account for income taxes under an asset and liability method whereby deferred tax asset and liability account balances are determined based on differences between the financial reporting and the tax basis of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Valuation allowances are established, when necessary, to reduce deferred tax assets to an amount that is more likely than not to be realized. We record uncertain tax positions on the basis of a two-step process in which (1) we determine whether it is more likely than not that the tax positions will be sustained on the basis of technical merits of the position and (2) for those tax positions that meet the more likely than not recognition threshold, we recognize the tax benefit as the largest amount that is cumulative more than 50% likely to be realized upon ultimate settlement with the related tax authority. Our policy is to include interest and penalties related to unrecognized tax benefits as a component of income tax expense. Net Loss Per Share Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by adjusting net loss for all related interest expense and gains and losses recognized during the period, net of tax, and giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. This assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later). Foreign Currency Translation The functional currency of our foreign subsidiaries is the local currency. Adjustments resulting from the translation of foreign currencies into U.S. dollars for balance sheet amounts are based on the exchange rates as of the consolidated balance sheet date. Revenues and expenses are translated at average exchange rates during the period. Foreign currency translation gains or losses are included in accumulated other comprehensive (loss) income as a component of stockholders’ equity on the consolidated balance sheets. Gains or losses resulting from the remeasurement of foreign currency transactions, which are denominated in currencies other than the functional currency, are included in general and administrative expense on the consolidated statements of operations and were not material during the years ended December 31, 2021, 2020 or 2019. Recent Accounting Pronouncements Recently Issued Accounting Pronouncements Not Yet Adopted In October 2021, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2021-08, Business Combinations-Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (Topic 805). The new guidance requires contract assets and contract liabilities acquired in a business combination to be recognized in accordance with Accounting Standards Codification (ASC) Topic 606 as if the acquirer had originated the contracts. The standard is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted. We will early adopt ASU 2021-08 on January 1, 2022 and will apply it prospectively to all business combinations for which the acquisition date occurs on or after such date, such as our acquisition of Busuu. The impact on our financial statements will depend on the contract assets and contract liabilities acquired in business combinations after January 1, 2022. We believe the most significant impacts will be an increase in contract liabilities and goodwill on our consolidated balance sheets. In May 2021, the FASB issued ASU 2021-04, Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options. ASU 2021-04 aims to clarify and reduce diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options that remain equity classified after modification or exchange based on the economic substance of the modification or exchange. Early adoption is permitted and the guidance must be applied prospectively to all modifications or exchanges that occur on or after the date of adoption. The guidance is effective for annual periods beginning after December 15, 2021. We will adopt ASU 2021-04 on January 1, 2022 and do not expect a material impact on our financial statements as a result of the adoption. Recently Adopted Accounting Pronouncements In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. ASU 2020-06 simplifies the guidance in ASC 470-20, Debt - Debt with Conversion and Other Options. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $378.1 million and a decrease to additional paid-in capital of $465.0 million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $86.9 million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 10, “Convertible Senior Notes” for more information. In March 2020, the FASB issued ASU 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU 2020-04 provides temporary optional expedients and exceptions for applying reference rate reform to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The guidance is required to be applied immediately and only applies to contract modifications made or hedging relationships entered into or evaluated before December 31, 2022. We do not have any hedging relationships and currently do not have material contracts impacted by reference rate reform, however, we will continue to assess contracts through December 31, 2022.
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Revenues |
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| Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenues | Revenues Revenue Recognition Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The majority of our revenues are recognized over time as services are performed, with certain revenues being recognized at a point in time. The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):
During the years ended December 31, 2021, 2020, and 2019, we recognized $32.6 million, $18.3 million and $17.0 million, respectively, of revenues that were included in our deferred revenue balance at the beginning of each respective fiscal year. During the year ended December 31, 2021, we recognized a reduction of revenues of $4.9 million from performance obligations satisfied in previous periods primarily due to a change in the estimated variable consideration ascribed to Thinkful. During the year ended December 31, 2020, we recognized an immaterial amount from performance obligations satisfied in previous periods. During the year ended December 31, 2019, we recognized $3.4 million of previously deferred revenues recognized from performance obligations satisfied in previous periods related to variable consideration recognized from our agreement with our Required Materials print textbook partner. During the years ended December 31, 2021 and 2020, we recognized $34.6 million and $50.8 million, respectively, of operating lease income from print textbook rentals that we own. Contract Balances The following table presents our accounts receivable, net, contract assets, and deferred revenue balances (in thousands, except percentages):
During the year ended December 31, 2021, our accounts receivable, net balance increased by $4.9 million, or 38%, primarily due to timing of billings and seasonality of our business. During the year ended December 31, 2021, our contract assets balance increased by $1.0 million or 7%, primarily due to our Thinkful service. During the year ended December 31, 2021, our deferred revenue balance increased by $2.5 million, or 8%, primarily due to increased bookings and seasonality of our business.
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Net Loss Per Share |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Loss Per Share | Net Loss Per Share Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. ASU 2020-06 requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later). The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):
The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):
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Cash and Cash Equivalents, and Investments and Fair Value Measurements |
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| Cash and Cash Equivalents [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash and Cash Equivalents, and Investments and Fair Value Measurements | Cash and Cash Equivalents, and Investments and Fair Value Measurements The following tables show our cash and cash equivalents, and investments’ fair value level classification, adjusted cost, unrealized gain, unrealized loss and fair value as of December 31, 2021 and 2020 (in thousands, except for fair value level):
As of December 31, 2021, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. During the years ended December 31, 2021 and 2020 we did not recognize any losses on our investments due to credit related factors. During the years ended December 31, 2021, 2020 and 2019, our gross realized gains and losses on investments were not significant. The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of December 31, 2021 (in thousands):
Investments not due at a single maturity date in the preceding table consisted of money market funds. Strategic Investments We previously invested $2.0 million in TAPD, Inc., also known as Frank; a U.S.-based service that helps students access financial aid. In September 2021, we sold our investment in Frank for total consideration of $9.2 million, resulting in a $7.2 million gain included within other (expense) income, net on our consolidated statements of operations. We received a cash payment of $9.0 million included within cash flows from investing activities on our consolidated statements of cash flows. We also previously invested $3.0 million in a foreign entity to explore expanding our reach internationally. In March 2021, we sold our investment in that foreign entity for total consideration of $8.3 million, resulting in a $5.3 million gain included within other (expense) income, net on our consolidated statements of operations. We received a cash payment, net of taxes withheld, of $7.1 million included within cash flows from investing activities on our consolidated statements of cash flows. We did not record any impairment charges on our strategic investments, other than a $10.0 million impairment charge previously recorded in 2020 on our strategic investment in WayUp, Inc., during the years ended December 31, 2021, 2020 and 2019, as there were no significant identified events or changes in circumstances that would be considered an indicator for impairment. We considered general market conditions as a result of the COVID-19 pandemic in our impairment analysis. There were no observable price changes in orderly transactions for the identical or similar investments of the same issuers during the years ended December 31, 2021, 2020 and 2019. As of December 31, 2021, we had no amounts related to strategic investments recorded on our consolidated balance sheet. Financial Instruments Not Recorded at Fair Value on a Recurring Basis We report our financial instruments at fair value with the exception of the notes. The estimated fair value of the notes was determined based on the trading price of the notes as of the last day of trading for the period. We consider the fair value of the notes to be a Level 2 measurement due to the limited trading activity. For further information on the notes refer to Note 10, “Convertible Senior Notes.” The carrying amounts and estimated fair values of the notes as of December 31, 2021 and 2020 are as follows (in thousands):
(1) Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 10, “Convertible Senior Notes” for more information. The carrying amount of the 2026 notes and 2025 notes as of December 31, 2021 was net of unamortized issuance costs of $12.3 million and $9.5 million, respectively, and there is no carrying amount of the 2023 notes as we settled the principal amount of the 2023 notes during the year ended December 31, 2021. The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of December 31, 2020 was net of unamortized debt discount of $226.7 million, $149.1 million and $10.0 million, respectively, and unamortized issuance costs of $11.3 million, $10.2 million and $1.2 million, respectively.
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Long-Lived Assets |
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| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Long-Lived Assets | Long-Lived Assets Textbook Library, Net Textbook library, net consisted of the following (in thousands):
During the years ended December 31, 2021 and December 31, 2020, print textbook depreciation expense was approximately $10.9 million and $15.4 million, respectively. During the year ended December 31, 2021, net loss on textbook library was approximately $11.0 million, primarily due to increased write-downs, and during the year ended December 31, 2020, net gain on textbook library was approximately $1.5 million. Property and Equipment, Net Property and equipment, net consisted of the following (in thousands):
Depreciation and content amortization expense during the years ended December 31, 2021, 2020, and 2019 were approximately $49.6 million, $32.6 million, and $24.2 million, respectively.
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Acquisitions |
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| Business Combination and Asset Acquisition [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Acquisitions | Acquisitions 2022 Acquisition On January 13, 2022, we completed our acquisition of 100% of the outstanding shares of Busuu Online S.L. (Busuu), an online language learning company that offers a comprehensive solution through a combination of self-paced lessons, live classes with expert tutors and the ability to learn and practice with members of the Busuu language learning community, for approximately $417 million in an all-cash transaction. The acquisition helps to expand our existing offerings and global reach through language learning, allowing us to drive further into international markets. There are additional payments of up to $25 million, subject to continued service of certain key employees of Busuu, that are not included in the fair value of the purchase consideration. During the year ended December 31, 2021, we incurred $5.3 million of acquisition-related expenses associated with our acquisition of Busuu, which have been included in general and administrative expense on our consolidated statements of operations. We plan to account for the acquisition as a business combination and the initial accounting for this acquisition, including the valuation of acquired tangible and intangibles assets and liabilities assumed, is in process as of the issuance date for our financial statements, therefore, we are unable to make any additional disclosures. 2021 Acquisition On February 22, 2021, we completed an acquisition, accounted for as a business combination, of 100% of the outstanding shares of a company for a technology that will strengthen our content creation abilities for a purchase consideration of $8.0 million in cash. Our total allocation of purchase consideration included acquired assets of $0.4 million, acquired developed technology intangible asset of $3.3 million and goodwill of $5.3 million less assumed liabilities of $1.0 million. This acquisition did not have a material impact on our consolidated financial statements and is not expected to have a material impact in future periods. 2020 Acquisition On June 4, 2020, we completed our acquisition of 100% of the outstanding shares of Mathway, LLC (Mathway), an online, on-demand math problem solving company that provides a vast range of subject areas in mathematics, including pre-algebra, algebra, trigonometry, pre-calculus, calculus, and linear algebra, and related disciplines. This acquisition helps to strengthen our Chegg Math service with the addition of new subjects, languages, and international reach. The total fair value of the purchase consideration was $101.0 million, of which $93.5 million was paid in cash on the acquisition date and $7.5 million was held in escrow as security for general representations and warranties and potential post-closing adjustments. The escrow amount was released in September 2021. The Mathway purchase agreement provides for additional payments of up to $15.0 million, subject to the achievement of specified milestones and continued employment of the sellers. These payments are not included in the fair value of the purchase consideration but rather are expensed ratably as acquisition-related compensation costs classified as research and development and general and administrative expenses, based on the seller's job function, on our consolidated statement of operations. During the year ended December 31, 2021, the milestones were met. As of December 31, 2021 and 2020, we have recorded approximately $0.4 million and $2.9 million, respectively, within accrued liabilities on our consolidated balance sheets for these payments. The following table presents the total allocation of purchase consideration recorded on our consolidated balance sheet as of the acquisition date (in thousands):
Goodwill is primarily attributable to the potential for enhancing our existing offerings and expanding our reach by providing additional mathematics support for students and helping them through their academic journey. The amounts recorded for intangible assets and goodwill are deductible for tax purposes. The following table presents the details of the allocation of purchase consideration to the acquired intangible assets (in thousands, except weighted-average amortization period):
During the year ended December 31, 2020, we incurred $3.1 million of acquisition-related expenses associated with our acquisition of Mathway, which have been included in general and administrative expense on our consolidated statement of operations. We have recorded immaterial amounts of revenue and earnings from Mathway during the period since the acquisition date through December 31, 2020. The following unaudited supplemental pro forma net loss is for informational purposes only and presents our combined results as if the acquisition of Mathway had occurred on January 1, 2019. The unaudited supplemental pro forma information includes the historical combined operating results adjusted for acquisition-related compensation costs, amortization of intangible assets, share-based compensation expense and acquisition-related expenses and does not necessarily reflect the actual results that would have been achieved, nor is it necessarily indicative of our future consolidated results. During the years ended December 31, 2020 and 2019, our supplemental pro forma net loss would have been $6.1 million and $27.3 million, respectively. Revenues from Mathway were immaterial during the years ended December 31, 2020 and 2019. 2019 Acquisition On October 1, 2019, we completed our acquisition of 100% of the outstanding shares of Thinkful, Inc. (Thinkful), our skills-based learning platform to expand our existing offerings by adding affordable and high-quality courses focused on the most in-demand technology skills. The total fair value of the purchase consideration was $79.2 million, which was paid in cash and included an escrow amount of $9.0 million for general representations and warranties and potential post-closing adjustments. The escrow amount was released in April 2021. Included in the purchase agreement for the acquisition of Thinkful are additional payments of up to $20.0 million subject to the achievement of specified milestones and continued employment of key employees. These payments are not included in the fair value of the purchase consideration and are expensed ratably as acquisition related compensation costs classified as research and development, general and administrative, and sales and marketing expenses, based on the key employee's job function, on our consolidated statement of operations. These payments may be settled by us, at our sole discretion, either in cash or shares of our common stock. During the year ended December 31, 2020, the terms of the purchase agreement were amended such that the retention incentive was reduced to $12.8 million, half of which is subject to the achievement of specified milestones and payable in cash and half of which will be settled in equity grants, to adjust for employee departures. During the year ended December 31, 2021, the milestones were met and all cash payments were made therefore we have no amounts recorded as of December 31, 2021. As of December 31, 2020 and 2019 we have recorded approximately $5.7 million and $3.0 million, respectively, included within accrued liabilities on our consolidated balance sheet for the cash payments. Goodwill is primarily attributable to the potential for expanding our existing offerings and reach by providing educational services for students and helping them through their professional journey. The amounts recorded for intangible assets and goodwill are not deductible for tax purposes. The following table presents the total allocation of purchase consideration recorded on our consolidated balance sheet as of the acquisition date (in thousands):
The following table presents the details of the allocation of purchase consideration to the acquired intangible assets (in thousands, except weighted-average amortization period):
During the year ended December 31, 2019, we incurred $1.0 million of acquisition-related expenses associated with our acquisition of Thinkful, which have been included in general and administrative expenses on our consolidated statement of operations. During the year ended December 31, 2019, $8.6 million of our consolidated net loss was attributed to Thinkful and we have recorded an immaterial amount of revenues during the period since the acquisition date through December 31, 2019. The following unaudited supplemental pro forma net loss is for informational purposes only and presents our combined results as if the acquisition of Thinkful had occurred on January 1, 2018. The unaudited supplemental pro forma information includes the historical combined operating results adjusted for acquisition related compensation costs, amortization of intangible assets, share-based compensation expense and transaction expenses and does not necessarily reflect the actual results that would have been achieved, nor is it necessarily indicative of our future consolidated results. During the year ended December 31, 2019, our supplemental pro forma net loss would have been $25.0 million. Revenues from Thinkful were immaterial during the year ended December 31, 2019.
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Goodwill and Intangible Assets |
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill and Intangible Assets | Goodwill and Intangible Assets Goodwill consists of the following (in thousands):
Intangible assets as of December 31, 2021 and December 31, 2020 consist of the following (in thousands, except weighted-average amortization period):
During the years ended December 31, 2021, 2020 and 2019, amortization expense related to our intangible assets totaled approximately $13.7 million, $14.3 million and $7.5 million, respectively. As of December 31, 2021, the estimated future amortization expense related to our intangible assets is as follows (in thousands):
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Balance Sheet Details |
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| Balance Sheet Details [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Balance Sheet Details | Balance Sheet Details Other Current Assets Other current assets consist of the following (in thousands):
Accrued Liabilities Accrued liabilities consist of the following (in thousands):
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Convertible Senior Notes |
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| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Convertible Senior Notes | Convertible Senior Notes Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). The aggregate principal amount of the 2026 notes includes $100 million from the initial purchasers fully exercising their option to purchase additional notes. In March 2019, we issued $700 million in aggregate principal amount of 0.125% convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total principal amount of $800 million. In April 2018, we issued $345 million in aggregate principal amount of 0.25% convertible senior notes due in 2023 (2023 notes and together with the 2026 notes and the 2025 notes, the notes). The aggregate principal amount of the 2023 notes included $45 million from the initial purchasers fully exercising their option to purchase additional notes. The notes were issued in private placements to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933. The total net proceeds from the notes are as follows (in thousands):
During the year ended December 31, 2021, we settled $115.6 million of aggregate principal amount of the 2023 notes, consisting of $24.7 million related to requests for conversions and $90.9 million pursuant to our election of our option to redeem the remaining outstanding 2023 notes, for a total aggregate consideration of $351.1 million, consisting of $115.6 million in cash and 2,983,011 shares of our common stock with an aggregate value of $235.5 million. The carrying amount of the 2023 notes was $114.2 million, resulting in a $236.9 million difference that was recorded in additional paid-in capital on our consolidated balance sheet. Additionally, we entered into 2023 notes capped call privately-negotiated transactions which terminated capped call transactions underlying 4,288,459 shares of our common stock and received aggregate cash proceeds of $45.2 million. As of December 31, 2021, no amounts of our 2023 notes remain outstanding and no shares remain underlying the 2023 notes capped call transactions. In March 2021, in connection with our securities repurchase program, we extinguished $100.0 million aggregate principal amount of the 2025 notes in privately-negotiated transactions for aggregate consideration of $184.9 million, which was paid in cash. Upon execution, we concluded that the 2025 notes embedded conversion features no longer met the derivative scope exception and, as a result, initially recorded a derivative liability of $176.5 million, related to the fair value of extinguished 2025 notes. We settled the derivative liability for aggregate consideration of $184.9 million resulting in a $8.4 million loss on change in fair value. The carrying amount of the 2025 notes subject to the extinguishment was $98.3 million resulting in a $78.2 million loss on early extinguishment of debt. Additionally, we entered into 2025 notes capped call privately-negotiated transactions which terminated capped call transactions underlying 1,939,560 shares of our common stock and received aggregate cash proceeds of $23.9 million. Upon execution, we concluded that the capped call transactions no longer met the derivative scope exception and, as a result recorded a derivative liability of $22.6 million related to the fair value of terminated 2025 notes capped call transactions. We settled the capped call transactions for aggregate consideration of $23.9 million resulting in a $1.3 million gain on change in fair value. During the year ended December 31, 2020, in connection with our securities repurchase program, we extinguished $57.4 million aggregate principal amount of the 2023 notes in privately-negotiated transactions for an aggregate consideration of $149.6 million, which was paid in cash. Of the $149.6 million consideration, we allocated $52.6 million and $97.0 million to the liability and equity components of the extinguished 2023 notes, respectively. The fair value of the liability component was calculated by measuring the fair value of similar debt instruments that do not have an associated convertible feature. The carrying amount of the liability component of the 2023 notes subject to the extinguishment was $51.6 million resulting in a $1.0 million loss on early extinguishment which was recorded in other (expense) income, net on our consolidated statements of operations. Additionally, we terminated 2023 notes capped call transactions underlying 2,131,354 shares of our common stock and received cash proceeds of $19.7 million. During the year ended December 31, 2020, in connection with our issuance of the 2026 notes, we exchanged $172.0 million aggregate principal amount of the 2023 notes in privately-negotiated transactions for an aggregate consideration of $501.7 million, consisting of $174.6 million in cash and 4,182,320 shares of our common stock with a value of $327.1 million. Of the $501.7 million consideration, we allocated $156.1 million and $345.6 million to the liability and equity components of the exchanged 2023 notes, respectively. The fair value of the liability component was calculated by measuring the fair value of similar debt instruments that do not have an associated convertible feature. The carrying amount of the liability component of the 2023 notes subject to the exchange was $152.8 million resulting in a $3.3 million loss on early extinguishment of debt which was recorded in other (expense) income, net on our consolidated statements of operations. Additionally, we terminated 2023 notes capped call transactions underlying 6,380,815 shares of our common stock and received cash proceeds of $57.4 million. The notes are our senior, unsecured obligations and are governed by indenture agreements by and between us and Wells Fargo Bank, National Association, as Trustee (the indentures). The 2026 notes bear no interest and will mature on September 1, 2026, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2025 notes bear interest of 0.125% per year which is payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2019. The 2025 notes will mature on March 15, 2025, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2023 notes bore interest of 0.25% per year which was payable semi-annually in arrears on May 15 and November 15 of each year, beginning on November 15, 2018. Each $1,000 principal amount of the 2026 notes will initially be convertible into 9.2978 shares of our common stock. This is equivalent to an initial conversion price of approximately $107.55 per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2025 notes will initially be convertible into 19.3956 shares of our common stock. This is equivalent to an initial conversion price of approximately $51.56 per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2023 notes was initially convertible into 37.1051 shares of our common stock. This was equivalent to an initial conversion price of approximately $26.95 per share, which was subject to adjustment in certain circumstances. Prior to the close of business on the business day immediately preceding June 1, 2026 for the 2026 notes and December 15, 2024 for the 2025 notes, the notes are convertible at the option of holders only upon satisfaction of the following circumstances: •during any calendar quarter commencing after the calendar quarter ending on December 31, 2020 for the 2026 notes and June 30, 2019 for the 2025 notes, if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the respective conversion price for the notes on each applicable trading day; •during the five-business day period after any 10 consecutive trading day period (the measurement period) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; •if we call any or all of the notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or •upon the occurrence of certain specified corporate events described in the indentures. On or after June 1, 2026 for the 2026 notes and December 15, 2024 for the 2025 notes until the close of business on the second scheduled trading day immediately preceding the respective maturity dates, holders may convert their notes at any time, regardless of the foregoing circumstances. Upon conversion, the notes may be settled in shares of our common stock, cash or a combination of cash and shares of our common stock, at our election. If we undergo a fundamental change, as defined in the indentures, prior to the respective maturity dates, subject to certain conditions, holders of the notes may require us to repurchase for cash all or any portion of their notes at a repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, if specific corporate events, described in the indentures, occur prior to the respective maturity dates, we will also increase the conversion rate for a holder who elects to convert their notes in connection with such specified corporate events. The conditions allowing holders of the 2026 notes to convert were not met and therefore the 2026 notes are not convertible. The conditions allowing holders of the 2025 notes to convert were not met during the three months ended December 31, 2021, therefore the 2025 notes are no longer convertible. The first circumstance noted above allowing holders of the 2025 notes to convert was met during the three months ended September 30, 2021, June 30, 2021, March 31, 2021, December 31, 2020 and September 30, 2020 and therefore, the 2025 notes were convertible starting October 1, 2020 through December 31, 2021. Aside from the extinguishment of $100.0 million aggregate principal amount of the 2025 notes discussed above, during the year ended December 31, 2021, we received immaterial requests for conversion of the 2025 notes which we settled or intend to settle in cash. The net carrying amount of the notes is as follows (in thousands):
(1) As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. The following table sets forth the total interest expense recognized related to the notes (in thousands):
(1) As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Capped Call Transactions Concurrently with the offering of the 2026 notes and 2025 notes, we used $103.4 million and $97.2 million, respectively, of the net proceeds to enter into privately negotiated capped call transactions which are expected to reduce or offset potential dilution to holders of our common stock upon conversion of the notes or offset the potential cash payments we would be required to make in excess of the principal amount of any converted notes. The capped call transactions automatically exercise upon conversion of the notes and as of December 31, 2021, cover 9,297,800 and 13,576,571 shares of our common stock for the 2026 notes and 2025 notes, respectively. These are intended to effectively increase the overall conversion price from $107.55 to $156.44 per share for the 2026 notes and $51.56 to $79.32 per share for the 2025 notes. The effective increase in conversion price as a result of the capped call transactions serves to reduce potential dilution to holders of our common stock and/or offset the cash payments we are required to make in excess of the principal amount of any converted notes. As these transactions meet certain accounting criteria, they are recorded in stockholders’ equity as a reduction of additional paid-in capital on our consolidated balance sheets and are not accounted for as derivatives. The fair value of the capped call instrument is not remeasured each reporting period. The cost of the capped call is not expected to be deductible for tax purposes.
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Leases |
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| Leases [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases | Leases We have operating leases for our corporate offices worldwide, which expire at various dates through 2027. Our primary operating lease commitments at December 31, 2021 are related to our corporate headquarters in Santa Clara, California and offices in San Francisco, California and New York City, New York. As of December 31, 2021 and 2020, we had operating lease ROU assets of $18.1 million and $24.2 million, respectively, and operating lease liabilities of $19.1 million and $25.9 million, respectively. As of December 31, 2021 and 2020, we did not have finance leases recorded on our consolidated balance sheet, our weighted average remaining lease term was 4.0 years and 4.6 years, respectively, and our weighted average discount rate was 4.8%. Operating lease expense, net of immaterial sublease income, was approximately $7.1 million, $5.6 million and $5.0 million, respectively, during the years ended December 31, 2021, 2020 and 2019. Variable lease cost and short term lease cost were immaterial during the years ended December 31, 2021, 2020 and 2019. The aggregate future minimum lease payments and reconciliation to operating lease liabilities as of December 31, 2021, are as follows (in thousands):
During the year ended December 31, 2021, we entered into a 5.5 year amendment to expand our office space in Portland, Oregon with future minimum lease payments of approximately $3.7 million. As of December 31, 2021, this lease has not yet commenced and therefore these future minimum lease payments are not included in table above.
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Commitments and Contingencies |
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Dec. 31, 2021 | |
| Commitments and Contingencies Disclosure [Abstract] | |
| Commitments and Contingencies | Commitments and Contingencies We may from time to time be subject to certain legal proceedings and claims in the ordinary course of business, including claims of alleged infringement of trademarks, patents, copyrights, and other intellectual property rights; employment claims; and general contract or other claims. We may also, from time to time, be subject to various legal or government claims, demands, disputes, investigations, or requests for information. Such matters may include, but not be limited to, claims, disputes, or investigations related to warranty, refund, breach of contract, employment, intellectual property, government regulation, or compliance or other matters. On January 12, 2022, Rak Joon Choi, derivatively on behalf of Chegg, filed a shareholder derivative complaint against Chegg and certain of its current and former directors and officers in the United States District Court for the Northern District of California, alleging breaches of fiduciary duties, unjust enrichment, abuse of control, gross mismanagement, and waste of corporate assets, among others. The Company disputes these claims and intends to vigorously defend itself in this matter. On December 22, 2021, Steven Leventhal, individually and on behalf of all others similarly situated, filed a purported securities fraud class action on behalf of all purchasers of Chegg common stock between May 5, 2020 and November 1, 2021, inclusive, against Chegg and certain of its current and former officers in the United States District Court for the Northern District of California (Case No. 5:21-cv-09953), alleging that Chegg and several of its officers made materially false and misleading statements in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934. The plaintiff in this matter seeks unspecified compensatory damages, costs, and expenses, including counsel and expert fees. The Company disputes these claims and intends to vigorously defend itself in this matter. On September 13, 2021, Pearson Education, Inc. (Pearson) filed a complaint captioned Pearson Education, Inc. v. Chegg, Inc. (Pearson Complaint) in the United States District Court for the District of New Jersey against the Company (Case 2:21-cv-16866), alleging infringement of Pearson’s registered copyrights and exclusive rights under copyright in violation of the United States Copyright Act. Pearson is seeking injunctive relief, monetary damages, costs, and attorneys’ fees. The Company filed its answer to the Pearson Complaint on November 19, 2021. The Company disputes these claims and intends to vigorously defend itself in this matter. On December 1, 2020, we received notice that a class action lawsuit was filed against Chegg in New York alleging violations of the American with Disabilities Act. The claim asserted that one of Chegg’s websites is not compatible with software used by vision-impaired individuals. During the year ended December 31, 2021, we settled this matter for an immaterial amount, and it is now concluded. On August 18, 2020, we received notice that a class action lawsuit was filed against Chegg in California alleging violations of the Unruh Civil Rights Act. The claim asserted that one of Chegg’s websites is not compatible with software used by vision-impaired individuals. During the year ended December 31, 2021, we settled this matter for an immaterial amount, and it is now concluded. On July 21, 2020, VitalSource Technologies LLC (VST), which is wholly owned by Ingram Industries Inc., filed a complaint against Chegg alleging that Chegg breached its contract with VST involving the development of an eTextbook reader and eTextbook reader platform. The suit sought uncertain damages, but the complaint alleged that they exceeded $75 thousand. During the year ended December 31, 2021, we settled this matter for an immaterial amount, and it is now concluded. On June 18, 2020, we received a Civil Investigative Demand (CID) from the Federal Trade Commission (FTC) to determine whether we may have violated Section 5 of the FTC Act or the Children's Online Privacy Protection Act (COPPA), as they relate to deceptive or unfair acts or practices related to consumer privacy and/or data security. We have provided the FTC with the requested responses to interrogatories and follow-up questions and have produced documents pertaining to data breach incidents and our data security and privacy practices generally. On May 12, 2020, we received notice that 15,107 arbitration demands were filed against us on April 30, 2020 by individuals all represented by the same legal counsel. Each individual claimant claimed to have suffered more than $25 thousand in damages as a result of the unauthorized access of certain items of their user data in April 2018 (the 2018 Data Incident). On July 1, 2020, an additional 1,007 arbitration demands were filed by the same counsel, making identical allegations. On August 12, 2020, an additional 577 arbitration demands were filed by the same counsel, making identical allegations. Related cases have been filed by the same counsel in Maryland and California. We dispute that these claimants have a valid basis for seeking arbitration, assert that they have acted in bad faith and are working with the Maryland and California courts and plaintiffs’ counsel on resolution of these claims. On August 22, 2021, Chegg and the claimants' legal counsel, on behalf of its clients, entered into a settlement agreement, pursuant to which each eligible claimant that signs a release agreement agrees, among other things, to dismiss with prejudice all claims against Chegg that such claimant currently maintains in exchange for such claimant's pro rata portion of the settlement amount. Claimants had until January 26, 2022 to sign their release agreements. In March 2021, we recorded a loss contingency accrual and a corresponding insurance loss recovery, the net impact of which did not materially impact our consolidated statements of operations. On November 5, 2018, NetSoc, LLC (NetSoc) filed a complaint against us captioned NetSoc, LLC v. Chegg, Inc., (Civil Action No. 1:18-CV-10262-RAC) in the U.S. District Court for the Southern District of New York (SDNY) for patent infringement alleging that the Chegg Tutors service infringes U.S. Patent No. 9,978,107 (the NetSoc Patent) and seeking unspecified compensatory damages. A responsive pleading was filed on February 19, 2019. On January 13, 2020, the SDNY issued an order dismissing the case as to Chegg. On January 30, 2020, NetSoc appealed the dismissal to the United States Court of Appeals for the Federal Circuit (the Federal Circuit). On September 24, 2021, the Federal Circuit dismissed NetSoc's appeal of the SDNY dismissal. On December 2, 2020, the U.S. Patent and Trademark Office determined that the NetSoc Patent is invalid based on two Inter Partes Review (IPR) proceedings instituted in part by Chegg, and on January 4, 2021, NetSoc filed a Notice of Appeals at the Federal Circuit appealing the IPR decisions. On October 18, 2021, Chegg filed a motion to dismiss NetSoc's appeal of the IPR decisions. On December 7, 2021, the Federal Circuit granted Chegg’s motion to terminate the IPR appeal. This matter is now concluded. Aside from the loss contingency accrual for the 2018 Data Incident matter, we have not recorded any additional amounts related to the above matters as we do not believe that a loss is probable in these remaining matters. We are not aware of any other pending legal matters or claims, individually or in the aggregate, that are expected to have a material adverse impact on our consolidated financial position, results of operations, or cash flows. However, our analysis of whether a claim will proceed to litigation cannot be predicted with certainty, nor can the results of litigation be predicted with certainty. Nevertheless, defending any of these actions, regardless of the outcome, may be costly, time consuming, distract management personnel and have a negative effect on our business. An adverse outcome in any of these actions, including a judgment or settlement, may cause a material adverse effect on our future business, operating results and/or financial condition.
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Guarantees and Indemnifications |
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Dec. 31, 2021 | |
| Guarantees And Indemnifications [Abstract] | |
| Guarantees and Indemnifications | Guarantees and Indemnifications We have agreed to indemnify our directors and officers for certain events or occurrences, subject to certain limits, while such persons are or were serving at our request in such capacity. We may terminate the indemnification agreements with these persons upon termination of employment, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination. We have a directors’ and officers’ insurance policy that limits our potential exposure up to the limits of our insurance coverage. In addition, we also have other indemnification agreements with various vendors against certain claims, liabilities, losses, and damages. The maximum amount of potential future indemnification is unlimited. We believe the fair value of these indemnification agreements is immaterial. We have not recorded any liabilities for these agreements as of December 31, 2021.
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| Equity [Abstract] | |||||||||||||||||||||||||||||||||||||||||||
| Common Stock | Common Stock We are authorized to issue 400 million shares of our common stock, with a par value per share of $0.001. As of December 31, 2021, we have reserved the following shares of our common stock for future issuance:
Stock Plans 2013 Equity Incentive Plan On June 6, 2013, the Board of Directors adopted our 2013 Equity Incentive Plan (the 2013 Plan), which was subsequently approved by our stockholders on August 29, 2013. The 2013 Plan became effective on November 11, 2013 and replaced the 2005 Plan. On the effective date of the 2013 Plan, 12,000,000 shares of our common stock were reserved for issuance, plus an additional 3,838,985 shares reserved but not issued or subject to outstanding awards under our 2005 Plan on the effective date of the 2013 Plan, plus, on and after the effective date of the 2013 Plan, (i) shares that are subject to outstanding awards under the 2005 Plan which cease to be subject to such awards, (ii) shares issued under the 2005 Plan that are forfeited or repurchased at their original issue price and (iii) shares subject to awards under the 2005 Plan that are used to pay the exercise price of an option or withheld to satisfy the tax withholding obligations related to any award. As of December 31, 2021, there were 30,629,068 shares available for grant under the 2013 Plan. The 2013 Plan permits the granting of incentive stock options, non-qualified stock options, RSUs, stock appreciation rights, restricted shares of common stock and performance share awards. The exercise price of stock options may not be less than the 100% of the fair market value of the common stock on the date of grant. Options granted pursuant to the 2013 Plan generally expire no later than 10 years. 2013 Employee Stock Purchase Plan On June 6, 2013, our Board of Directors adopted our 2013 Employee Stock Purchase Plan (the 2013 ESPP) and our stockholders subsequently approved the 2013 ESPP Plan on August 29, 2013. The 2013 ESPP permits eligible employees to acquire shares of our common stock by accumulating funds through periodic payroll deductions of up to 15% of base salary. Our 2013 ESPP is intended to qualify as an ESPP under Section 423 of the Code and employees will receive a 15% discount to the lesser of the fair market value of our common stock on (i) the first trading day of the applicable offering period or (ii) the last day of each purchase period in the applicable offering period. Each offering period may run for no more than six months. We have reserved 4,000,000 shares of our common stock under our 2013 ESPP. The aggregate number of shares issued over the term of our 2013 ESPP will not exceed 20,000,000 shares of our common stock. As of December 31, 2021, there were 9,814,172 shares of common stock available for future issuance under the 2013 ESPP.
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| Share-based Payment Arrangement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stockholders' Equity | Stockholders' Equity Accelerated Share Repurchase On December 3, 2021, we entered into an accelerated share repurchase (ASR) agreement with a financial institution (2021 ASR). We accounted for the 2021 ASR as two separate transactions, a repurchase of our common stock and an equity-linked contract indexed to our common stock that met certain accounting criteria for classification in stockholders' equity. Upon execution, we paid a fixed amount of $300.0 million and received an initial delivery of 8,403,361 shares of our common stock, which were retired immediately. The initial delivery of shares of our common stock represented approximately 80 percent of the fixed amount paid of $300.0 million, which was based on the share price of our common stock on the date of execution. The 2021 ASR was recorded as a reduction to additional paid in capital on our consolidated statements of stockholders’ equity. The 2021 ASR settled during the first quarter of 2022 and we received an additional delivery of 2,163,219 shares of our common stock, which were retired immediately. The 2021 ASR resulted in a total repurchase of 10,566,580 shares of our common stock at a volume-weighted-average price, less an agreed upon discount, of $28.3914 per share. We were not required to make any additional cash payments or delivery of common stock to the financial institutions upon settlement. Securities Repurchase Program In November 2021, our board of directors approved a $500.0 million increase to our existing securities repurchase program authorizing the repurchase of up to $1.0 billion of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements. The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors. During the year ended December 31, 2021, we entered into the 2021 ASR for $300.0 million and repurchased $100.0 million of aggregate principal amount of the 2025 notes in privately-negotiated transaction for an aggregate consideration of $184.9 million. During the year ended December 31, 2020, we repurchased $57.4 million of aggregate principal amount of the 2023 notes in privately-negotiated transactions for an aggregate consideration of $149.6 million. As of December 31, 2021 $365.5 million remains under the repurchase program, which has no expiration date and will continue until otherwise suspended, terminated or modified at any time for any reason by our board of directors. Equity Offering In February 2021, we entered into an underwriting agreement pursuant to which we agreed to issue and sell 10,974,600 shares of our common stock at a public offering price of $102.00 per share generating aggregate net proceeds of $1,091.5 million, after deducting underwriting discounts and commissions of $26.9 million and offering expenses of $1.1 million. Share-based Compensation Expense Total share-based compensation expense recorded for employees and non-employees, is as follows (in thousands):
During the year ended December 31, 2021 we capitalized share-based compensation expense of $2.6 million. As of December 31, 2021, we had a total of approximately $273.0 million of unrecognized share-based compensation expense that is expected to be recognized over the remaining weighted average period of 2.6 years. 2021 PSU Grants with Market-Based Conditions In March 2021, we granted PSUs under the 2013 Equity Incentive Plan (the 2013 Plan) with market-based conditions to certain of our key employees. The number of shares of our common stock that may be issued to settle these PSUs range from 50% at the threshold level to 150% at the maximum level of the 100% target level of the award depending on achieving a maximum average market value of the per share price of our common stock, for a period of 60 consecutive trading days, over a three-year performance period ending on the third anniversary of the date of grant. No payout will be made for performance below the 50% threshold level. The market value of the per share price of our common stock must reach $123.81, $148.58, or $173.34 at the threshold, target, or maximum levels, respectively, for achievement of the award, which could result in issuance of 244,086, 488,173, or 732,260 shares of our common stock at each respective payout level. These PSUs will vest over a four-year period, with the initial vesting of 50% of the award occurring in March 2024. The number of PSUs granted totaled 732,260 shares, which represents the maximum number of shares, and had a grant date fair value of $68.55 per share, determined under the Monte Carlo simulation approach described further below. As of December 31, 2021, the market-based conditions have not been met. Fair Value of PSUs with Market-Based Conditions We estimate the fair value of the PSUs using a Monte Carlo simulation approach, which utilizes the fair value of our common stock based on an active market and requires input on the following subjective assumptions: Expected Term. The expected term for the awards is the performance period of three years. Expected Volatility. The expected volatility is based on the historical average volatility of our stock price over the expected term. Expected Dividends. The dividend assumption is based on our historical experience. To date we have not paid any dividends on our common stock. Risk-Free Interest Rate. The risk-free interest rate used in the valuation method is the implied yield currently available on the U.S. treasury zero-coupon issues, with a remaining term equal to the expected term. The following table summarizes the key assumptions used to determine the fair value of the awards:
2021 PSU Grants with Financial and Strategic Performance Targets In March 2021, we granted PSUs under the 2013 Plan to certain of our key executives. The PSUs entitle the executives to receive a certain number of shares of our common stock based on our satisfaction of certain financial and strategic performance targets during 2021. Based on the achievement of the performance conditions for the March 2021 grants, the final settlement partially met the target threshold based on a specified objective formula approved by the Compensation Committee. These PSUs will vest over a three-year period, with the initial vesting occurring in March 2022. The number of shares underlying these March 2021 PSUs granted during the year ended December 31, 2021 totaled 278,644 shares and had a grant date fair value of $99.05 per share. 2020 PSU Grants with Financial and Strategic Performance Targets In March 2020, we granted PSUs under the 2013 Plan to certain of our key executives. The PSUs entitle the executives to receive a certain number of shares of our common stock based on our satisfaction of certain financial and strategic performance targets during 2020. Based on the achievement of the performance conditions for the March 2020 grants, the final settlement met the target threshold based on a specified objective formula approved by the Compensation Committee. These PSUs will vest over a three-year period, with the initial vesting occurring in March 2021. The number of shares underlying the March 2020 PSUs granted during the year ended December 31, 2020 totaled 460,976 shares and had a grant date fair value of $39.21 per share. 2019 PSU Grants with Financial and Strategic Performance Targets In March 2019, we granted PSUs under the 2013 Plan to certain of our key executives. The PSUs entitle the executives to receive a certain number of shares of our common stock based on our satisfaction of certain financial and strategic performance targets during 2019. Based on the achievement of the performance conditions for the March 2019 grants, the final settlement met the target threshold based on a specified objective formula approved by the Compensation Committee. These PSUs will vest over a three-year period, with the initial vesting occurring in March 2020. The number of shares underlying the March 2019 PSUs granted during the year ended December 31, 2019 totaled 436,042 shares and had a grant date fair value of $40.42 per share. RSUs and PSUs Activity
The weighted-average grant-date fair value of RSUs and PSUs granted during the years ended December 31, 2021, 2020, and 2019 was $47.95, $45.37, and $37.56, respectively. The total fair value of RSUs and PSUs vested as of the vesting dates during the years ended December 31, 2021, 2020, and 2019 was $232.0 million, $200.1 million, and $222.3 million, respectively. Fair Value of 2013 ESPP Under the 2013 ESPP, rights to purchase shares are generally granted during the second and fourth quarter of each year. We estimate the fair value of each right to purchase shares under our 2013 ESPP using the Black-Scholes-Merton option-pricing model, which utilizes the fair value of our common stock based on active market and requires input on the following subjective assumptions: Expected Term. The expected term for rights to purchase shares under the 2013 ESPP is six months. Expected Volatility. The expected volatility is based on the average volatility of our stock price over the expected term. Expected Dividends. The dividend assumption is based on our historical experience. To date we have not paid any dividends on our common stock. Risk-Free Interest Rate. The risk-free interest rate used in the valuation method is the implied yield currently available on the United States treasury zero-coupon issues, with a remaining term equal to the expected term. The following table summarizes the key assumptions used to determine the fair value of rights granted under the 2013 ESPP:
2013 ESPP Activity There were 167,890, 173,992 and 201,581 shares purchased under the 2013 ESPP during the years ended December 31, 2021, 2020 and 2019, respectively, at an average price per share of $40.35, $38.85 and $25.55, respectively, with cash proceeds from the issuance of shares of $6.8 million, $6.8 million and $5.1 million, respectively. Stock Option Activity
We did not grant any stock option awards during the years ended December 31, 2021, 2020, and 2019. The total intrinsic value of options exercised during the years ended December 31, 2021, 2020 and 2019, was approximately $10.7 million, $53.5 million and $90.8 million, respectively.
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes | Income Taxes We recorded an income tax provision of approximately $7.2 million, $5.4 million and $2.6 million for the years ended December 31, 2021, 2020 and 2019, respectively. The income tax provision for the year ended December 31, 2021 was primarily due to state and foreign income tax expenses and the withholding taxes related to the sale of our strategic equity investment. The income tax provision for the years ended December 31, 2020 and 2019 was primarily due to state and foreign income tax expense. Our income tax provision consisted of the following (in thousands):
Loss before provision for income taxes consisted of the following (in thousands):
The differences between our income tax provision as presented in the accompanying consolidated statements of operations and the income tax expense computed at the federal statutory rate consists of the items shown in the following table as a percentage of pretax loss (in percentages):
A summary of our deferred tax assets is as follows (in thousands):
At December 31, 2021 and 2020, the deferred tax liability is primarily created by the tax amortization of acquired indefinite lived intangible assets. Under the accounting guidance this deferred tax liability can be used as a source of income for recognition of deferred tax assets when determining the amount of valuation allowance to be recorded. As of December 31, 2021, we intend to permanently reinvest all 2018 and later earnings from our foreign subsidiaries. As such, we have not provided for any remaining tax effect, if any, of the outside basis difference of our foreign subsidiaries based upon plans of future reinvestment. The determination of the future tax consequences of the remittance of these earnings is not practicable. Realization of the deferred tax assets is dependent upon future taxable income, the amount and timing of which are uncertain. Accordingly, the federal and state gross deferred tax assets have been fully offset by a valuation allowance. The valuation allowance increased by approximately $86.5 million during the year ended December 31, 2021 and increased by approximately $3.3 million during the year ended December 31, 2020. As of December 31, 2021, we had net operating loss carryforwards for federal and state income tax purposes of approximately $660 million and $485 million, respectively, which will begin to expire in years beginning 2028 and 2022, respectively. As of December 31, 2021, we had tax credit carryforwards for federal and state income tax purposes of approximately $21.4 million and $15.7 million, respectively. The federal credits expire in various years beginning in 2030. The state credits do not expire. Utilization of our net operating losses and tax credit carryforwards may be subject to substantial annual limitations due to ownership change limitations provided by the Internal Revenue Code of 1986, as amended (IRC), and similar state provisions. Such annual limitations could result in the expiration of the net operating losses and tax credit carryforwards before utilization. We recognize interest and penalties related to uncertain tax positions as a component of income tax expense. During the years ended December 31, 2021, 2020 and 2019, we recognized an increase of $0.1 million, $0.1 million and $45 thousand of interest and penalties, respectively. Accrued interest and penalties as of December 31, 2021 and 2020 were approximately $0.3 million and $0.2 million, respectively. We file tax returns in U.S. federal, state, and certain foreign jurisdictions with varying statutes of limitations. Due to net operating loss and credit carryforwards, all of the tax years since inception through the 2021 tax year remain subject to examination by the U.S. federal and some state authorities. Foreign jurisdictions remain subject to examination up to approximately seven years from the filing date, depending on the jurisdiction. A reconciliation of the beginning and ending balances of the total amount of unrecognized tax benefits, excluding accrued interest and penalties, is as follows (in thousands):
The amount of unrecognized tax benefits, if recognized, that would affect the effective tax rate is $4.5 million for the year ended December 31, 2021. One or more of these unrecognized tax benefits could be subject to a valuation allowance if, and when recognized in a future period, which could impact the timing of any related effective tax rate benefit. The actual amount of any taxes due could vary significantly depending on the ultimate timing and nature of any settlement. We believe that the amount by which the unrecognized tax benefits may increase or decrease within the next 12 months is not estimable.
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Related-Party Transactions |
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Dec. 31, 2021 | |
| Related Party Transactions [Abstract] | |
| Related-Party Transactions | Related-Party Transactions Our Chief Executive Officer is a member of the Board of Directors of Adobe Systems Incorporated (Adobe). During the years ended December 31, 2021, 2020, and 2019, we purchased services of $2.4 million, $1.7 million and $2.1 million, respectively, from Adobe. We had no revenues from Adobe during the year ended December 31, 2021 and $0.1 million and $0.2 million, in revenues during the years ended December 31, 2020 and 2019, respectively. We had no payables as of December 31, 2021 and $0.1 million of payables as of December 31, 2020 to Adobe. We had no outstanding receivables as of December 31, 2021 and 2020 from Adobe. The immediate family of one of our board members is a member of the Board of Directors of PayPal Holdings, Inc. (PayPal). During the years ended December 31, 2021, 2020, and 2019, we incurred payment processing fees of $2.8 million, $2.1 million and $1.6 million, respectively, to PayPal. One of our board members is a member of the Board of Directors of Zuora, Inc. (Zuora). During the years ended December 31, 2021 and 2020 we purchased services of $1.9 million and $1.3 million, respectively, from Zuora. We had no payables as December 31, 2021 and 2020 to Zuora. One of our board members is also the Chief Executive Officer of the San Francisco 49ers (49ers). During the years ended December 31, 2021, 2020 and 2019, we purchased advertisements of $0.2 million, $0.1 million, and $0.2 million, respectively, from the 49ers.
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Restructuring Charges |
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| Restructuring and Related Activities [Abstract] | |||||||||||||||||||||||||||||||||||||
| Restructuring Charges | Restructuring Charges In September 2021, we changed our go-to-market strategy for our Thinkful product offering which we believe will have the most growth potential to serve learners. This resulted in a management approved restructuring plan that impacted approximately 60 full-time employees and 100 part-time employees in the United States. During the year ended December 31, 2021, we recorded restructuring charges of $1.9 million related to one-time employee termination benefits classified on our consolidated statements of operations based on the employees' job function and made cash payments of $1.1 million. As of December 31, 2021, we have $0.8 million remaining liability which is included within accrued liabilities on our consolidated balance sheets. The total cost of the restructuring plan has been recorded and we expect it to be completed by the end of the second quarter of fiscal year 2022. We expect cost savings from the restructuring plan to be reinvested in future growth opportunities. The following table summarizes the activity related to the restructuring liability (in thousands):
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Consolidated Statements of Operations Details |
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| Other Income and Expenses [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Consolidated Statements of Operations Details | Consolidated Statements of Operations Details Other (expense) income, net, net consists of the following (in thousands):
(1) For further information, see Note 10, “Convertible Senior Notes.” (2) For further information, see Note 5, “Cash and Cash Equivalents, and Investments and Fair Value Measurements.”
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Employee Benefit Plan |
12 Months Ended |
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Dec. 31, 2021 | |
| Retirement Benefits [Abstract] | |
| Employee Benefit Plan | Employee Benefit PlanWe sponsor a 401(k) savings plan for eligible employees and their beneficiaries. Contributions by us are discretionary and participants may contribute, on a pretax basis, a percentage of their annual compensation, not to exceed a maximum contribution amount pursuant to Section 401(k) of the IRC. During the years ended December 31, 2021, 2020, and 2019, matching contributions totaled approximately $2.6 million, $2.2 million and $1.7 million, respectively. |
Segment Information |
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| Segment Information | Segment Information Our chief operating decision-maker is our Chief Executive Officer who makes resource allocation decisions and reviews financial information presented on a consolidated basis. Accordingly, we have determined that we have a single operating and reportable segment and operating unit structure. Product Information We derive our revenues from our Chegg Services and Required Materials product lines. Our Chegg Services primarily include Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, Mathway and Thinkful. Our Required Materials product line includes revenues from print textbooks and eTextbooks. The following table sets forth our total net revenues for the periods shown for our Chegg Services and Required Materials product lines (in thousands):
Our headquarters are located in the United States where we primarily conduct our sales, marketing and customer service activities. During the year ended December 31, 2021, we had revenues of $690.0 million from the United States and $86.3 million internationally. During the years ended December 31, 2020 and 2019, substantially all of our revenue was from the United States. As of December 31, 2021 and 2020, substantially all of our long-lived assets are located in the United States.
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Schedule II - Valuation and Qualifying Accounts |
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| SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule II - Valuation and Qualifying Accounts | Financial Statement Schedules Schedule II-Valuation and Qualifying Accounts (in thousands):
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Significant Accounting Policies (Policies) |
12 Months Ended |
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Dec. 31, 2021 | |
| Accounting Policies [Abstract] | |
| Use of Estimates | Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. Significant estimates, assumptions, and judgments are used for, but not limited to: revenue recognition, share-based compensation expense including grant-date fair value of PSUs with a market-based condition and estimated forfeitures, accounting for income taxes, useful lives and salvage value assigned to our textbook library, useful lives assigned to long-lived assets for depreciation and amortization, impairment of goodwill and long-lived assets, the valuation of acquired intangible assets, and internal-use software and website development costs. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management’s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations.
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| Principles of Consolidation | Principles of Consolidation The consolidated financial statements include the accounts of Chegg and our wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The consolidated financial statements have been prepared in accordance with U.S. GAAP.
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| Cash and Cash Equivalents and Restricted Cash | Cash and Cash Equivalents and Restricted CashWe consider all highly liquid investments with an original maturity date of three months or less from the date of purchase to be cash equivalents. Our cash and cash equivalents consist of cash and money market accounts at financial institutions, and are stated at cost, which approximates fair value. We classify certain restricted cash balances within other current assets and other assets on the accompanying consolidated balance sheets based upon the term of the remaining restrictions. |
| Fair Value Measurements | Fair Value Measurements We account for certain assets and liabilities at fair value. We have established a fair value hierarchy used to determine the fair value of our financial instruments as follows: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments. Level 3—Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value; the inputs require significant management judgment or estimation. A financial instrument’s classification within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.
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| Investments | Investments We hold investments in commercial paper, corporate debt securities, U.S. treasury securities and agency bonds. We classify our investments as available-for-sale that are either short or long-term based on the remaining contractual maturity of the investment. Our investments are carried at estimated fair value with any unrealized gains and losses, unrelated to credit loss factors, net of taxes, included in other comprehensive (loss) income on our consolidated statements of stockholders’ equity. Unrealized losses related to credit loss factors are recorded through an allowance for credit losses in other (expense) income, net on our consolidated statements of operations, rather than as a reduction to other comprehensive (loss) income, when a decline in fair value has resulted from a credit loss. When evaluating whether an investment's unrealized losses are related to credit factors, we review factors such as the extent to which fair value is below its cost basis, any changes to the credit rating of the security, adverse conditions specifically related to the security, changes in market interest rates and our intent to sell, or whether it is more likely than not we will be required to sell, before recovery of cost basis. We invest in highly rated securities with a weighted average maturity of twelve months or less. In addition, our investment policy limits the amount of our credit exposure to any one issuer or industry sector and requires investments to be investment grade, with the primary objective of preserving capital and maintaining liquidity. Fair values were determined for each individual security in the investment portfolio. We determine realized gains or losses on the sale of investments on a specific identification method, and record such gains or losses as other (expense) income, net. The estimated fair value of our investments are based on quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. Other than our money market funds and U.S. treasury securities, we classify our fixed income available-for-sale investments as having Level 2 inputs. The valuation techniques used to measure the fair value of our investments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models such as discounted cash flow techniques. We do not hold any investments valued with a Level 3 input.
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| Accounts Receivable, Net of Allowance | Accounts Receivable, Net of Allowance Accounts receivable are recorded at the invoiced amount and are non-interest bearing. We generally grant uncollateralized credit terms to our customers, which include textbook wholesalers and advertising customers. We maintain an allowance to account for potentially uncollectible receivables. We assess the creditworthiness of our customers based on multiple sources of information, and analyze such factors as our historical bad debt experience, industry and geographic concentrations of credit risk, economic trends, and customer payment history. This assessment requires significant judgment. Because of this assessment, we maintain an allowance for estimated losses resulting from the inability of certain customers to make all of their required payments. In making this estimate, we analyze historical payment performance and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off as a decrease to the allowance when all collection efforts have been exhausted and an account is deemed uncollectible.
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| Concentration of Credit Risk | Concentration of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents, restricted cash, and investments in highly liquid instruments in accordance with our investment policy. We place the majority of our cash and cash equivalents and restricted cash with financial institutions in the United States that we believe to be of high credit quality, and accordingly minimal credit risk exists with respect to these instruments. Certain of our cash balances held with a financial institution are in excess of Federal Deposit Insurance Corporation limits. Our investment portfolio consists of investments diversified among security types, industries and issuers. Our investments were held and managed by recognized financial institutions that followed our investment policy with the main objective of preserving capital and maintaining liquidity.
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| Property and Equipment | Property and Equipment Property and equipment are recorded at cost less accumulated depreciation and content amortization. Depreciation and content amortization are computed using the straight-line method over the following estimated useful lives of the assets: Depreciation and content amortization expense are generally classified within the corresponding cost of revenues and operating expenses categories on our consolidated statements of operations. The cost of maintenance and repairs is expensed as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation and amortization are removed from their respective accounts, and any gain or loss on such sale or disposal is reflected in income from operations.
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| Internal-Use Software and Website Development Costs | Internal-Use Software and Website Development CostsWe capitalize certain costs associated with software developed or obtained for internal use and website and application development. We capitalize costs when preliminary development efforts are successfully completed, management has authorized and committed project funding and it is probable that the project will be completed and the software will be used as intended. Such costs are amortized on a straight-line basis over a three year estimated useful life of the related asset. Costs incurred prior to meeting these criteria, together with costs incurred for training and maintenance, are expensed as incurred. Costs incurred for enhancements that are expected to result in additional material functionality are capitalized and amortized over the estimated useful life of the upgrades. |
| Business Combinations | Business Combinations We allocate the fair value of purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired through a business combination based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets acquired and liabilities assumed is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets. Significant estimates in valuing certain intangible assets include, but are not limited to, future expected cash flows from acquired users, acquired technology, and trade names from a market participant perspective, useful lives and discount rates. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, which is not to exceed one year from the acquisition date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings.
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| Goodwill and Indefinite-Lived Intangible Asset | Goodwill and Indefinite-Lived Intangible Asset Goodwill represents the excess of the fair value of purchase consideration paid over the estimated fair value of assets acquired and liabilities assumed in a business combination. Our indefinite-lived intangible asset represents the internships.com trade name. Goodwill and our indefinite-lived intangible asset are not amortized but rather tested for impairment at least annually on October 1, or more frequently if certain events or indicators of impairment occur between annual impairment tests. We first assess qualitative factors to determine whether it is necessary to perform the quantitative impairment test. In our qualitative assessment, we consider factors including economic conditions, industry and market conditions and developments, overall financial performance and other relevant entity-specific events in determining whether it is more likely than not that the fair value of our reporting unit is less than the carrying amount. We completed our annual impairment test on October 1st of 2021 and 2020, each of which did not result in any impairment as our qualitative assessment did not indicate that it is more likely than not that the fair value of our reporting unit is less than the carrying amount.
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| Acquired Intangible Assets, and Other Long-Lived Assets | Acquired Intangible Assets and Other Long-Lived AssetsAcquired intangible assets with finite useful lives, which include developed technology, content library, customer lists, trade names, domain names, and non-compete agreements, are amortized over their estimated useful lives. We assess the impairment of acquired intangible assets and other long-lived assets when events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. |
| Leases | Leases We determine if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets and operating lease liabilities within current liabilities and long-term liabilities on our consolidated balance sheets. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. Our leases do not provide an implicit rate and therefore we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future minimum lease payments. Our incremental borrowing rate is estimated based on the estimated rate incurred to borrow, on a collateralized basis over a similar term as our leases, an amount equal to the lease payments in a similar economic environment. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise such options. We do not record leases on our consolidated balance sheet with a term of one year or less. We do not separate lease and non-lease components but rather account for each separate component as a single lease component for all underlying classes of assets. Some of our leases include payments that are dependent on an index, such as the Consumer Price Index (CPI), and our minimum lease payments include payments based on the index at inception with any future changes in such indices recognized as an expense in the period of change. Where leases contain escalation clauses, rent abatement, or concessions, such as rent holidays and landlord or tenant incentives or allowances, we apply them in the determination of straight-line operating lease cost over the lease term.
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| Strategic Investments | Strategic Investments We have entered into strategic investments that do not have readily determinable fair values and have elected to account for these investments at cost, minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer, if any. Strategic investments are included in other assets on our consolidated balance sheets. We assess our strategic investments for impairment whenever events or changes in circumstances indicate that they may be impaired. The factors we consider in our evaluation include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee or factors that raise significant concerns about the investee’s ability to continue as a going concern, such as negative cash flows from operations or working capital deficiencies.
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| Convertible Senior Notes, net | Convertible Senior Notes, net In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $700 million in aggregate principal amount of 0.125% convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total gross proceeds of $800 million. In April 2018, we issued $345 million in aggregate principal amount of 0.25% convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the “notes.” The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our consolidated balance sheets. In accounting for extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our consolidated statements of operations.
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| Textbook Library | Textbook Library Beginning in January 2020, we began our transition back to print textbook ownership by purchasing print textbooks to establish our textbook library. We consider our print textbook library to be a long-term productive asset and, as such, classify it as a non-current asset on our consolidated balance sheets. All print textbooks in our textbook library are stated at cost, which includes the purchase price less accumulated depreciation. We write down textbooks on a book-by-book basis for lost, damaged, or excess print textbooks. We depreciate our print textbooks, less an estimated salvage value, over an estimated useful life of four years using an accelerated method of depreciation, as we estimate this method most accurately reflects the actual pattern of decline in their economic value. The salvage value considers the historical trend and projected proceeds for print textbooks. The useful life is determined based on the estimated time period in which the print textbooks are held and rented. We review the estimated salvage value and useful life of our print textbook library on an ongoing basis. Write-downs for print textbooks, print textbook depreciation expense, the gain or loss on print textbooks liquidated, and the net book value of print textbooks purchased by students at the end of the term or on a just-in-time basis are recorded in cost of revenues on our consolidated statements of operations and classified as adjustments to cash flows from operating activities. Cash outflows for the acquisition of print textbooks net of changes in related accounts payable and accrued liabilities, and cash inflows received from the proceeds from the disposition of print textbooks net of changes in related accounts receivable, are classified as cash flows from investing activities on our consolidated statements of cash flows.
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| Revenue Recognition and Deferred Revenue | Revenue Recognition and Deferred Revenue We recognize revenues when the control of goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Revenues are presented net of sales tax collected from customers to be remitted to governmental authorities and net of allowances for estimated cancellations and customer returns, which are based on historical data. Customer refunds from cancellations and returns are recorded as a reduction to revenues. We determine revenue recognition through the following steps: •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 •Recognition of revenue when, or as, we satisfy a performance obligation We generate revenues from our Chegg Services product line which primarily includes Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, Mathway and Thinkful. Revenues from Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, and Mathway are primarily recognized ratably over the monthly subscription period. Revenues from Thinkful are recognized either ratably over the term of the course, generally six months, or upon completion of the lessons, depending on the instruction type of the course. Revenues from our Required Materials product line includes revenues from print textbooks that we own or that are owned by a partner as well as revenues from eTextbooks. Beginning in 2020, our Required Materials product line includes operating leases with students for the rental of print textbooks that we own. Operating lease income is recognized as the total transaction amount, paid upon commencement of the lease, ratably over the lease term or rental term, generally a - to five-month period. Students generally have the option to extend the term of their rental or purchase the print textbook at the end of the term otherwise the print textbook is returned to our print textbook library for future rental. If a student chooses to purchase or not return the print textbook at the end of their rental term, we charge the student for the book and recognize the revenues immediately. Additionally, we provide students the ability to purchase print textbooks on a just-in-time basis and recognize revenues immediately upon shipment. Revenues from print textbooks owned by a partner are recognized as a revenue share on the total transaction amount of a rental or sale transaction immediately when a print textbook ships to a student. Shipping and handling activities are expensed as incurred. Revenues from eTextbooks are recognized ratably over the contractual period, generally a - to five-month period. Some of our customer arrangements include multiple performance obligations. We have determined these performance obligations qualify as distinct performance obligations, as the customer can benefit from the service on its own or together with other resources that are readily available to the customer, and our promise to transfer the service is separately identifiable from other promises in the contract. For these arrangements that contain multiple performance obligations, we allocate the transaction price based on the relative standalone selling price (SSP) method by comparing the SSP of each distinct performance obligation to the total value of the contract. We determine the SSP based on our historical pricing and discounting practices for the distinct performance obligation when sold separately. If the SSP is not directly observable, we estimate the SSP by considering information such as market conditions, and information about the customer. Additionally, we limit the amount of revenues recognized for delivered promises to the amount that is not contingent on future delivery of services or other future performance obligations. Some of our customer arrangements may include an amount of variable consideration in addition to a fixed revenue share that we earn. This variable consideration can either increase or decrease the total transaction price depending on the nature of the variable consideration. We estimate the amount of variable consideration that we will earn at the inception of the contract, adjusted during each period, and include an estimated amount each period. For sales of third-party products, we evaluate whether we are acting as a principal or an agent. Where our role in a transaction is that of principal, revenues are recognized on a gross basis. This requires revenue to comprise the gross value of the transaction billed to the customer, after trade discounts, with any related expenditure charged as a cost of revenues. Where our role in a transaction is that of an agent, revenues are recognized on a net basis with revenues representing the margin earned. Our determination is based on our evaluation of whether we control the specified goods or services prior to transferring them to the customer. When deciding the most appropriate basis for presenting revenues or costs of revenues, both the legal form and substance of the agreement between us and our business partners are reviewed to determine each party’s respective role in the transaction. In relation to print textbooks owned by a partner, we recognize revenues on a net basis based on our role in the transaction as an agent as we have concluded that we do not control the use of the print textbooks, and therefore record only the net revenue share we earn. We have concluded that we control our Chegg Services, print textbooks that we own for rental, purchase at the end of the rental term, or sale on a just-in-time basis, and eTextbook service and therefore we recognize revenues and cost of revenues on a gross basis. Contract assets are contained within other current assets and other assets on our consolidated balance sheets. Contract assets represent the goods or services that we have transferred to a customer before invoicing the customer and primarily consist of the income sharing payment arrangements we offer to students for our Thinkful service. Contract receivables are contained within accounts receivable, net on our consolidated balance sheets and represent unconditional consideration that will be received solely due to the passage of time. Contract liabilities are contained within deferred revenue on our consolidated balance sheets. Deferred revenue primarily consists of advanced payments from students related to rental and subscription performance obligations that have not been satisfied and estimated variable consideration. Deferred revenue related to rental and subscription performance obligations is recognized as revenues ratably over the term for subscriptions or when the services are provided and all other revenue recognition criteria have been met. Deferred revenue related to variable consideration is recognized as revenues during each reporting period based on the estimated amount we believe we will earn over the life of the contract. We have elected a practical expedient to record incremental costs to obtain or fulfill a contract when the amortization period would have been one year or less as incurred. These incremental costs primarily relate to sales commissions costs and are recorded in sales and marketing expense on our consolidated statements of operations.
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| Operating leases, lessor | Beginning in 2020, our Required Materials product line includes operating leases with students for the rental of print textbooks that we own. Operating lease income is recognized as the total transaction amount, paid upon commencement of the lease, ratably over the lease term or rental term, generally a - to five-month period. |
| Cost of Revenues | Cost of RevenuesOur cost of revenues consists primarily of expenses associated with the delivery and distribution of our products and services. Cost of revenues primarily consists of content amortization expense related to content that we develop, license from publishers for which we pay one-time license fees, or acquire through acquisitions, web hosting fees, customer support fees, payment processing costs, amortization of acquired intangible assets, order fulfillment fees primarily related to outbound shipping and fulfillment as well as publisher content fees for eTextbooks, write-downs for print textbooks, the gain or loss on print textbooks liquidated, the net book value of print textbooks purchased by students at the end of the term or on a just-in-time basis, print textbook depreciation expense, personnel costs and other direct costs related to providing content or services. In addition, cost of revenues includes allocated information technology and facilities costs. |
| Research and Development Costs | Research and Development Costs Our research and development expenses consist of salaries, benefits, and share-based compensation expense for employees on our product, engineering, and technical teams who are responsible for maintaining our website, developing new products, and improving existing products. Research and development costs also include technology costs to support our research and development, and outside services. We expense substantially all of our research and development expenses as they are incurred.
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| Advertising Costs | Advertising CostsAdvertising costs are expensed as incurred and consist primarily of online advertising and marketing promotional expenditures. |
| Share-based Compensation Expense | Share-based Compensation Expense Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial and strategic performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial and strategic performance targets is measured based on the closing fair market value of our common stock, PSUs with a market-based condition are estimated using a Monte Carlo simulation model, and ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense on a straight-line basis for RSUs and ESPP and on a graded basis for PSUs. Vesting for all awards is subject to continued service over the requisite service period, which is generally the vesting period. Vesting of PSUs with a market-based condition is also subject to the achievement of certain per share price of our common stock targets and vesting of PSUs with financial and strategic performance targets is also subject to our achievement of specified financial and strategic performance targets. RSUs and PSUs are converted into shares of our common stock upon vesting on a one-for-one basis. RSUs typically vest over or four years, while PSUs with a market-based condition typically vest over a four-year period and PSUs with financial and strategic performance targets typically vest over a three-year period. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. We assess the achievement of financial and strategic performance targets on a quarterly basis and adjust our share-based compensation expense as appropriate. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.
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| Income Taxes | Income Taxes We account for income taxes under an asset and liability method whereby deferred tax asset and liability account balances are determined based on differences between the financial reporting and the tax basis of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Valuation allowances are established, when necessary, to reduce deferred tax assets to an amount that is more likely than not to be realized. We record uncertain tax positions on the basis of a two-step process in which (1) we determine whether it is more likely than not that the tax positions will be sustained on the basis of technical merits of the position and (2) for those tax positions that meet the more likely than not recognition threshold, we recognize the tax benefit as the largest amount that is cumulative more than 50% likely to be realized upon ultimate settlement with the related tax authority. Our policy is to include interest and penalties related to unrecognized tax benefits as a component of income tax expense.
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| Net Loss Per Share | Net Loss Per Share Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by adjusting net loss for all related interest expense and gains and losses recognized during the period, net of tax, and giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. This assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later).
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| Foreign Currency Translation | Foreign Currency Translation The functional currency of our foreign subsidiaries is the local currency. Adjustments resulting from the translation of foreign currencies into U.S. dollars for balance sheet amounts are based on the exchange rates as of the consolidated balance sheet date. Revenues and expenses are translated at average exchange rates during the period. Foreign currency translation gains or losses are included in accumulated other comprehensive (loss) income as a component of stockholders’ equity on the consolidated balance sheets. Gains or losses resulting from the remeasurement of foreign currency transactions, which are denominated in currencies other than the functional currency, are included in general and administrative expense on the consolidated statements of operations and were not material during the years ended December 31, 2021, 2020 or 2019.
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| Recent Accounting Pronouncements | Recent Accounting Pronouncements Recently Issued Accounting Pronouncements Not Yet Adopted In October 2021, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2021-08, Business Combinations-Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (Topic 805). The new guidance requires contract assets and contract liabilities acquired in a business combination to be recognized in accordance with Accounting Standards Codification (ASC) Topic 606 as if the acquirer had originated the contracts. The standard is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted. We will early adopt ASU 2021-08 on January 1, 2022 and will apply it prospectively to all business combinations for which the acquisition date occurs on or after such date, such as our acquisition of Busuu. The impact on our financial statements will depend on the contract assets and contract liabilities acquired in business combinations after January 1, 2022. We believe the most significant impacts will be an increase in contract liabilities and goodwill on our consolidated balance sheets. In May 2021, the FASB issued ASU 2021-04, Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options. ASU 2021-04 aims to clarify and reduce diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options that remain equity classified after modification or exchange based on the economic substance of the modification or exchange. Early adoption is permitted and the guidance must be applied prospectively to all modifications or exchanges that occur on or after the date of adoption. The guidance is effective for annual periods beginning after December 15, 2021. We will adopt ASU 2021-04 on January 1, 2022 and do not expect a material impact on our financial statements as a result of the adoption. Recently Adopted Accounting Pronouncements In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. ASU 2020-06 simplifies the guidance in ASC 470-20, Debt - Debt with Conversion and Other Options. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $378.1 million and a decrease to additional paid-in capital of $465.0 million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $86.9 million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 10, “Convertible Senior Notes” for more information. In March 2020, the FASB issued ASU 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU 2020-04 provides temporary optional expedients and exceptions for applying reference rate reform to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The guidance is required to be applied immediately and only applies to contract modifications made or hedging relationships entered into or evaluated before December 31, 2022. We do not have any hedging relationships and currently do not have material contracts impacted by reference rate reform, however, we will continue to assess contracts through December 31, 2022.
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Significant Accounting Policies (Tables) |
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| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Useful Lives For Property And Equipment | Property and equipment are recorded at cost less accumulated depreciation and content amortization. Depreciation and content amortization are computed using the straight-line method over the following estimated useful lives of the assets:
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Revenues (Tables) |
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| Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disaggregation of Revenue | The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):
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| Schedule of Accounts Receivable | The following table presents our accounts receivable, net, contract assets, and deferred revenue balances (in thousands, except percentages):
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Net Loss Per Share (Tables) |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Computation of Basic and Diluted Net Loss Per Share | The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):
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| Common Shares Outstanding Excluded from Computation of Diluted Net Loss Per Share | The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):
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Cash and Cash Equivalents, and Investments and Fair Value Measurements (Tables) |
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| Cash and Cash Equivalents [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash and Cash Equivalents, and Investments | The following tables show our cash and cash equivalents, and investments’ fair value level classification, adjusted cost, unrealized gain, unrealized loss and fair value as of December 31, 2021 and 2020 (in thousands, except for fair value level):
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| Schedule of Available-for-sale Securities Reconciliation | The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of December 31, 2021 (in thousands):
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| Fair Value Measurements, Nonrecurring | The carrying amounts and estimated fair values of the notes as of December 31, 2021 and 2020 are as follows (in thousands):
(1) Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 10, “Convertible Senior Notes” for more information.
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Long-Lived Assets (Tables) |
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| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of textbook library assets | Textbook library, net consisted of the following (in thousands):
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| Property, plant and equipment | Property and equipment, net consisted of the following (in thousands):
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Acquisitions (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Combination and Asset Acquisition [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Recognized Identified Assets Acquired and Liabilities Assumed | The following table presents the total allocation of purchase consideration recorded on our consolidated balance sheet as of the acquisition date (in thousands):
The following table presents the total allocation of purchase consideration recorded on our consolidated balance sheet as of the acquisition date (in thousands):
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| Schedule Of Allocation Of Purchase Consideration To Acquired Intangible Assets | The following table presents the details of the allocation of purchase consideration to the acquired intangible assets (in thousands, except weighted-average amortization period):
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| Schedule Of Purchase Consideration Allocation To Intangible Assets | The following table presents the details of the allocation of purchase consideration to the acquired intangible assets (in thousands, except weighted-average amortization period):
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Goodwill and Intangible Assets (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill | Goodwill consists of the following (in thousands):
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| Intangible Assets | Intangible assets as of December 31, 2021 and December 31, 2020 consist of the following (in thousands, except weighted-average amortization period):
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| Estimated Future Amortization Expense Related to Intangible Assets | As of December 31, 2021, the estimated future amortization expense related to our intangible assets is as follows (in thousands):
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Balance Sheet Details (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Balance Sheet Details [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Other Current Assets | Other current assets consist of the following (in thousands):
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| Schedule of Accrued Liabilities | Accrued liabilities consist of the following (in thousands):
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Convertible Senior Notes (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Net Proceeds From Debt Issuance | The total net proceeds from the notes are as follows (in thousands):
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| Schedule of Debt | The net carrying amount of the notes is as follows (in thousands):
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| Schedule Of Interest Expense Recognized | The following table sets forth the total interest expense recognized related to the notes (in thousands):
(1) As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.
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Leases (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lessee, Operating Lease, Liability, Maturity | The aggregate future minimum lease payments and reconciliation to operating lease liabilities as of December 31, 2021, are as follows (in thousands):
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Common Stock (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||
| Equity [Abstract] | |||||||||||||||||||||||||||||||||||||||||||
| Schedule of Common Stock Reserved for Future Issuance | As of December 31, 2021, we have reserved the following shares of our common stock for future issuance:
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Stockholders' Equity (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-based Payment Arrangement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stock-Based Compensation Expense for Employees and Non-Employees | Total share-based compensation expense recorded for employees and non-employees, is as follows (in thousands):
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| Summary of Assumptions Used to Determine Fair Value of ESPP | The following table summarizes the key assumptions used to determine the fair value of the awards:
The following table summarizes the key assumptions used to determine the fair value of rights granted under the 2013 ESPP:
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| Summary of Restricted Stock Unit Activity | RSUs and PSUs Activity
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| Summary of Stock Option Activity | Stock Option Activity
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Income Taxes (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Income Tax Provision | Our income tax provision consisted of the following (in thousands):
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| Schedule of Loss before Provision for Income Taxes | Loss before provision for income taxes consisted of the following (in thousands):
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| Schedule of Effective Income Tax Rate Reconciliation | The differences between our income tax provision as presented in the accompanying consolidated statements of operations and the income tax expense computed at the federal statutory rate consists of the items shown in the following table as a percentage of pretax loss (in percentages):
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| Schedule of Deferred Tax Assets and Liabilities | A summary of our deferred tax assets is as follows (in thousands):
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| Schedule of Reconciliation of Unrecognized Tax Benefits | A reconciliation of the beginning and ending balances of the total amount of unrecognized tax benefits, excluding accrued interest and penalties, is as follows (in thousands):
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Restructuring Charges (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||
| Restructuring and Related Activities [Abstract] | |||||||||||||||||||||||||||||||||||||
| Schedule of Restructuring Reserve by Type of Cost | The following table summarizes the activity related to the restructuring liability (in thousands):
|
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Consolidated Statements of Operations Details (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Income and Expenses [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of (Expense) Other Income, Net | Other (expense) income, net, net consists of the following (in thousands):
(1) For further information, see Note 10, “Convertible Senior Notes.” (2) For further information, see Note 5, “Cash and Cash Equivalents, and Investments and Fair Value Measurements.”
|
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Segment Information (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Revenue by Product Line | The following table sets forth our total net revenues for the periods shown for our Chegg Services and Required Materials product lines (in thousands):
|
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Background and Basis of Presentation (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Current operating lease liabilities | $ 6,663 | $ 6,603 |
Significant Accounting Policies - Investments (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Accounting Policies [Abstract] | |
| Weighted average maturity | 12 months |
Significant Accounting Policies - Concentration of Credit Risk (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2020 | |
| Largest Customer | Customer Concentration Risk | Accounts Receivable | |
| Concentration Risk [Line Items] | |
| Concentration risk, percentage | 10.00% |
Significant Accounting Policies - Property Plant and Equipment (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Content | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 5 years |
| Leasehold improvements | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 5 years |
| Internal-use software and website development | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 3 years |
| Furniture and fixtures | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 5 years |
| Computers and equipment | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 3 years |
| Textbook Library | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 4 years |
Significant Accounting Policies - Convertible Senior Notes (Details) - Convertible Senior Notes - USD ($) |
1 Months Ended | |||||
|---|---|---|---|---|---|---|
Aug. 31, 2020 |
Apr. 30, 2019 |
Apr. 30, 2018 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Mar. 31, 2019 |
|
| 0% Convertible Senior Notes Due 2026 | ||||||
| Debt Instrument [Line Items] | ||||||
| Face amount | $ 1,000,000,000 | $ 1,000,000,000 | $ 1,000,000,000 | |||
| Interest rate, stated percentage | 0.00% | |||||
| Principal amount | $ 1,000,000,000 | |||||
| 0.125 Percent Convertible Senior Notes Due 2025 | ||||||
| Debt Instrument [Line Items] | ||||||
| Face amount | $ 699,982,000 | 800,000,000 | $ 700,000,000 | |||
| Interest rate, stated percentage | 0.125% | |||||
| Option to purchase additional notes | $ 100,000,000 | |||||
| Principal amount | $ 800,000,000 | |||||
| 0.25% Convertible Senior Notes Due 2023 | ||||||
| Debt Instrument [Line Items] | ||||||
| Face amount | $ 345,000,000 | $ 115,576,000 | ||||
| Interest rate, stated percentage | 0.25% | |||||
| Option to purchase additional notes | $ 45,000,000 | |||||
| Principal amount | $ 345,000,000 | |||||
Significant Accounting Policies - Revenue Recognition (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Thinkful, Inc | |
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | |
| Contractual period | 6 months |
| Minimum | Textbook Library | |
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | |
| Contractual period | 2 months |
| Minimum | eTextbooks | |
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | |
| Contractual period | 2 months |
| Maximum | Textbook Library | |
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | |
| Contractual period | 5 months |
| Maximum | eTextbooks | |
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | |
| Contractual period | 5 months |
Significant Accounting Policies - Advertising Cost (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Accounting Policies [Abstract] | |||
| Advertising costs | $ 45.1 | $ 35.3 | $ 24.4 |
Significant Accounting Policies - Share-based Compensation Expense (Details) |
1 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2021 |
Dec. 31, 2021 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Conversion ratio | 1 | |
| Restricted Stock Units (RSUs) | Minimum | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Vesting period of stock awards | 3 years | |
| Restricted Stock Units (RSUs) | Maximum | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Vesting period of stock awards | 4 years | |
| Performance Shares, Market Based Conditions | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Vesting period of stock awards | 4 years | 4 years |
| Performance Shares, Financial And Strategic Performance Targets | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Vesting period of stock awards | 3 years |
Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Disaggregation of Revenue [Line Items] | |||
| Net revenues | $ 776,265 | $ 644,338 | $ 410,926 |
| Change in total net revenues | $ 131,927 | $ 233,412 | |
| Change in total net revenues, percent | 20.00% | 57.00% | |
| Chegg Services | |||
| Disaggregation of Revenue [Line Items] | |||
| Net revenues | $ 669,894 | $ 521,228 | 332,221 |
| Change in total net revenues | $ 148,666 | $ 189,007 | |
| Change in total net revenues, percent | 29.00% | 57.00% | |
| Required Materials | |||
| Disaggregation of Revenue [Line Items] | |||
| Net revenues | $ 106,371 | $ 123,110 | $ 78,705 |
| Change in total net revenues | $ (16,739) | $ 44,405 | |
| Change in total net revenues, percent | (14.00%) | 56.00% | |
Revenues - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Disaggregation of Revenue [Line Items] | |||
| Contract with customer, liability, revenue recognized | $ 32.6 | $ 18.3 | $ 17.0 |
| Contract with customer, liability, revenue recognized, prior period | 4.9 | $ 3.4 | |
| Textbook Library | |||
| Disaggregation of Revenue [Line Items] | |||
| Operating lease income | $ 34.6 | $ 50.8 | |
Revenues - Contract Balances (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Revenue from Contract with Customer [Abstract] | ||
| Accounts receivable, net | $ 17,850 | $ 12,913 |
| Change in accounts receivable | $ 4,937 | |
| Change in accounts receivable, percent | 38.00% | |
| Contract assets | $ 14,231 | 13,243 |
| Change in contract assets | $ 988 | |
| Change in contract assets, percent | 7.00% | |
| Deferred revenue | $ 35,143 | $ 32,620 |
| Change in deferred revenue | $ 2,523 | |
| Change in deferred revenue, percent | 8.00% |
Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Numerator: | |||
| Net loss | $ (1,458) | $ (6,221) | $ (9,605) |
| Denominator: | |||
| Weighted average shares used to compute net loss per share, basic (in shares) | 141,262 | 125,367 | 119,204 |
| Weighted average shares used to compute net loss per share, diluted (in shares) | 141,262 | 125,367 | 119,204 |
| Net Loss Per Share, basic (in dollars per share) | $ (0.01) | $ (0.05) | $ (0.08) |
| Net Loss Per Share, diluted (in dollars per share) | $ (0.01) | $ (0.05) | $ (0.08) |
Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details) - shares shares in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Total common stock equivalents (in shares) | 25,845 | 9,412 | 10,620 |
| Shares related to stock plan activity | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Total common stock equivalents (in shares) | 2,545 | 4,470 | 7,094 |
| Shares related to convertible senior notes | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Total common stock equivalents (in shares) | 23,300 | 4,942 | 3,526 |
Cash and Cash Equivalents, and Investments and Fair Value Measurements - Contractual Maturity (Details) $ in Thousands |
Dec. 31, 2021
USD ($)
|
|---|---|
| Cash and Cash Equivalents [Abstract] | |
| Due in 1 year or less, Cost | $ 692,320 |
| Due in 1-2 years, Cost | 749,377 |
| Investments not due at a single maturity date, Cost | 823,754 |
| Adjusted Cost | 2,265,451 |
| Due in 1 year or less, Fair Value | 691,781 |
| Due in 1-2 years, Fair Value | 745,993 |
| Investments not due at a single maturity date, Fair Value | 823,754 |
| Total, Fair Value | $ 2,261,528 |
Cash and Cash Equivalents, and Investments and Fair Value Measurements - Strategic Investment (Details) - USD ($) $ in Thousands |
1 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Sep. 30, 2021 |
Mar. 31, 2021 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Mar. 31, 2020 |
Mar. 31, 2017 |
|
| Schedule of Investments [Line Items] | |||||||
| Gain on sale of strategic equity investments | $ 12,496 | $ 0 | $ 0 | ||||
| Proceeds from sale of strategic equity investments | 16,076 | 0 | 0 | ||||
| Impairment charge | $ 0 | 10,000 | $ 0 | ||||
| TAPD, Inc. | |||||||
| Schedule of Investments [Line Items] | |||||||
| Cost method investment | $ 2,000 | ||||||
| Consideration received on sale | $ 9,200 | ||||||
| Gain on sale of strategic equity investments | 7,200 | ||||||
| Proceeds from sale of strategic equity investments | $ 9,000 | ||||||
| Foreign Entity | |||||||
| Schedule of Investments [Line Items] | |||||||
| Cost method investment | $ 3,000 | ||||||
| Consideration received on sale | $ 8,300 | ||||||
| Gain on sale of strategic equity investments | 5,300 | ||||||
| Proceeds from sale of strategic equity investments | $ 7,100 | ||||||
| WayUp, Inc. | |||||||
| Schedule of Investments [Line Items] | |||||||
| Impairment charge | $ 10,000 | ||||||
Long-Lived Assets - Textbook Library (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] | |||
| Property and equipment, gross | $ 27,569 | $ 47,293 | |
| Less accumulated depreciation and amortization | (16,328) | (13,144) | |
| Textbook library, net | 11,241 | 34,149 | |
| Print textbook depreciation expense | 10,859 | 15,397 | $ 0 |
| Loss (gain) on textbook library, net | $ 10,956 | $ (1,453) | $ 0 |
Long-Lived Assets - Property, Plant and Equipment (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Property, Plant and Equipment [Line Items] | |||
| Property and equipment | $ 315,351 | $ 224,417 | |
| Less accumulated depreciation and amortization | (145,413) | (98,610) | |
| Property and equipment, net | 169,938 | 125,807 | |
| Depreciation and amortization | 49,600 | 32,600 | $ 24,200 |
| Content | |||
| Property, Plant and Equipment [Line Items] | |||
| Property and equipment | 258,005 | 181,938 | |
| Internal-use software and website development | |||
| Property, Plant and Equipment [Line Items] | |||
| Property and equipment | 29,711 | 15,646 | |
| Leasehold improvements | |||
| Property, Plant and Equipment [Line Items] | |||
| Property and equipment | 19,913 | 19,574 | |
| Furniture and fixtures | |||
| Property, Plant and Equipment [Line Items] | |||
| Property and equipment | 4,352 | 3,891 | |
| Computers and equipment | |||
| Property, Plant and Equipment [Line Items] | |||
| Property and equipment | $ 3,370 | $ 3,368 | |
Acquisitions - 2022 Acquisition (Details) - Busuu Online S.L. - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jan. 13, 2022 |
Dec. 31, 2021 |
|
| Business Acquisition [Line Items] | ||
| Acquisition related expenses | $ 5.3 | |
| Subsequent Event | ||
| Business Acquisition [Line Items] | ||
| Ownership percent of stock acquired | 100.00% | |
| Payments for contingent consideration arrangements | $ 417.0 | |
| Contingent consideration arrangements | $ 25.0 |
Acquisitions - 2021 Acquisition (Details) - USD ($) $ in Thousands |
Feb. 22, 2021 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|---|---|
| Business Acquisition [Line Items] | ||||
| Goodwill | $ 289,763 | $ 285,214 | $ 214,513 | |
| Technology Company | ||||
| Business Acquisition [Line Items] | ||||
| Ownership percent of stock acquired | 100.00% | |||
| Payments for contingent consideration arrangements | $ 8,000 | |||
| Total identifiable assets acquired | 400 | |||
| Acquired intangible assets | 3,300 | |||
| Goodwill | 5,300 | |||
| Liabilities assumed | $ 1,000 |
Acquisitions - 2020 Acquisition (Details) - Mathway, LLC - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Jun. 04, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2021 |
|
| Business Acquisition [Line Items] | ||||
| Ownership percent of stock acquired | 100.00% | |||
| Fair value of purchase consideration | $ 101.0 | |||
| Payments for contingent consideration arrangements | 93.5 | |||
| Escrow | 7.5 | |||
| Contingent payments | $ 15.0 | |||
| Contingent purchase consideration, cash | $ 2.9 | $ 0.4 | ||
| Acquisition related expenses | 3.1 | |||
| Pro forma net loss | $ 6.1 | $ 27.3 | ||
Acquisitions - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
Jun. 04, 2020 |
Dec. 31, 2019 |
Oct. 01, 2019 |
|---|---|---|---|---|---|
| Business Acquisition [Line Items] | |||||
| Goodwill | $ 289,763 | $ 285,214 | $ 214,513 | ||
| Mathway, LLC | |||||
| Business Acquisition [Line Items] | |||||
| Cash | $ 712 | ||||
| Accounts receivable | 1,132 | ||||
| Other acquired assets | 779 | ||||
| Acquired intangible assets | 30,320 | ||||
| Total identifiable assets acquired | 32,943 | ||||
| Deferred revenue | (1,423) | ||||
| Liabilities assumed | (727) | ||||
| Net identifiable assets acquired | 30,793 | ||||
| Goodwill | 70,167 | ||||
| Total fair value of purchase consideration | $ 100,960 | ||||
| Thinkful, Inc | |||||
| Business Acquisition [Line Items] | |||||
| Cash | $ 51 | ||||
| Accounts receivable | 547 | ||||
| Other acquired assets | 1,710 | ||||
| Acquired intangible assets | 16,360 | ||||
| Total identifiable assets acquired | 18,668 | ||||
| Deferred revenue | (2,455) | ||||
| Liabilities assumed | (1,906) | ||||
| Net identifiable assets acquired | 14,307 | ||||
| Goodwill | 64,893 | ||||
| Total fair value of purchase consideration | $ 79,200 |
Acquisitions - 2019 Acquisitions (Details) - Thinkful, Inc - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Oct. 01, 2019 |
Dec. 31, 2019 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Business Acquisition [Line Items] | ||||
| Ownership percent of stock acquired | 100.00% | |||
| Fair value of purchase consideration | $ 79.2 | |||
| Escrow | 9.0 | |||
| Contingent consideration arrangements | $ 20.0 | $ 12.8 | ||
| Contingent purchase consideration, cash | $ 3.0 | $ 0.0 | $ 5.7 | |
| Acquisition related expenses | 1.0 | |||
| Consolidated net loss attributed to acquiree since acquisition date | 8.6 | |||
| Pro forma net loss | $ 25.0 |
Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Goodwill [Roll Forward] | ||
| Beginning balance | $ 285,214 | $ 214,513 |
| Additions due to acquisitions | 5,782 | 70,167 |
| Foreign currency translation adjustment | (707) | 822 |
| Measurement period adjustments related to prior acquisitions | (526) | (288) |
| Ending balance | $ 289,763 | $ 285,214 |
Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Acquisition-Related Intangible Assets | |||
| Finite Lived Intangible Assets [Line Items] | |||
| Amortization expense of acquisition related to acquired intangible assets | $ 13.7 | $ 14.3 | $ 7.5 |
Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Details) $ in Thousands |
Dec. 31, 2021
USD ($)
|
|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | |
| 2022 | $ 11,303 |
| 2023 | 9,173 |
| 2024 | 6,121 |
| 2025 | 4,307 |
| 2026 | 3,959 |
| Thereafter | 2,103 |
| Net Carrying Amount | $ 36,966 |
Balance Sheet Details - Other Current Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Balance Sheet Details [Abstract] | ||
| Insurance recovery related to loss contingency | $ 7,800 | $ 0 |
| Other | 16,046 | 11,846 |
| Other current assets | $ 23,846 | $ 11,846 |
Balance Sheet Details - Accrued Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Balance Sheet Details [Abstract] | ||
| Taxes payable | $ 11,127 | $ 6,166 |
| Loss contingency | $ 8,000 | $ 0 |
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accrued liabilities | Accrued liabilities |
| Current operating lease liabilities | $ 6,663 | $ 6,603 |
| Accrued content related costs | 6,448 | 6,273 |
| Order fulfillment fees | 6,254 | 11,430 |
| Payment processing fees | 3,419 | 2,130 |
| Accrued purchases of long-lived assets | 2,982 | 1,588 |
| Refund reserve | 1,392 | 1,515 |
| Restructuring liability | 785 | 0 |
| Acquisition-related compensation | 417 | 9,611 |
| Accrued escrow related to acquisition | 0 | 7,451 |
| Other | 19,722 | 15,798 |
| Accrued liabilities | $ 67,209 | $ 68,565 |
Convertible Senior Notes - Interest Expense Recognized (Details) - Convertible Senior Notes - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| 0% Convertible Senior Notes Due 2026 | |||
| Debt Instrument [Line Items] | |||
| Amortization of debt discount | $ 0 | $ 14,568 | $ 0 |
| Amortization of issuance costs | 2,635 | 728 | 0 |
| Total interest expense | 2,635 | 15,296 | 0 |
| 0.125 Percent Convertible Senior Notes Due 2025 | |||
| Debt Instrument [Line Items] | |||
| Contractual interest expense | 896 | 1,001 | 769 |
| Amortization of debt discount | 0 | 35,561 | 27,302 |
| Amortization of issuance costs | 3,045 | 2,443 | 1,876 |
| Total interest expense | 3,941 | 39,005 | 29,947 |
| 0.25% Convertible Senior Notes Due 2023 | |||
| Debt Instrument [Line Items] | |||
| Contractual interest expense | 78 | 691 | 862 |
| Amortization of debt discount | 0 | 10,073 | 12,536 |
| Amortization of issuance costs | 242 | 1,200 | 1,488 |
| Total interest expense | $ 320 | $ 11,964 | $ 14,886 |
Leases - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Lessee, Lease, Description [Line Items] | |||
| Right of use assets | $ 18,062 | $ 24,226 | |
| Operating lease liability | $ 19,110 | $ 25,900 | |
| Weighted average remaining lease term for operating lease | 4 years | 4 years 7 months 6 days | |
| Weighted average discount rate used to determine the operating lease liability | 4.80% | 4.80% | |
| Lease expense | $ 7,100 | $ 5,600 | $ 5,000 |
| Future minimum lease payments | $ 21,035 | ||
| Portland, Oregon Office Space | |||
| Lessee, Lease, Description [Line Items] | |||
| Lease term | 5 years 6 months | ||
| Future minimum lease payments | $ 3,700 | ||
Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Leases [Abstract] | ||
| 2022 | $ 7,435 | |
| 2023 | 5,599 | |
| 2024 | 2,559 | |
| 2025 | 1,823 | |
| 2026 | 1,869 | |
| Thereafter | 1,750 | |
| Total future minimum lease payments | 21,035 | |
| Less imputed interest | (1,925) | |
| Total operating lease liabilities | $ 19,110 | $ 25,900 |
Commitments and Contingencies (Details) $ in Thousands |
Aug. 12, 2020
claim
|
Jul. 01, 2020
claim
|
May 12, 2020
USD ($)
claim
|
Jul. 21, 2020
USD ($)
|
|---|---|---|---|---|
| VitalSource Technologies LLC (VST) vs. Chegg | Pending Litigation | ||||
| Loss Contingencies [Line Items] | ||||
| Estimate of possible loss | $ | $ 75 | |||
| 2018 Data Incident, Arbitration Demands | ||||
| Loss Contingencies [Line Items] | ||||
| Number of arbitration demands filed | claim | 577 | |||
| 2018 Data Incident, Arbitration Demands | Pending Litigation | ||||
| Loss Contingencies [Line Items] | ||||
| Number of arbitration demands filed | claim | 1,007 | 15,107 | ||
| Damages sought, value | $ | $ 25 |
Stockholders' Equity - Share-based Compensation Expense (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | |||
| Share-based compensation expense | $ 108,846 | $ 84,055 | $ 64,909 |
| Cost of revenues | |||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | |||
| Share-based compensation expense | 1,621 | 950 | 426 |
| Research and development | |||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | |||
| Share-based compensation expense | 37,131 | 31,588 | 22,229 |
| Sales and marketing | |||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | |||
| Share-based compensation expense | 13,887 | 9,606 | 7,380 |
| General and administrative | |||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | |||
| Share-based compensation expense | $ 56,207 | $ 41,911 | $ 34,874 |
Stockholders' Equity - Summary of Stock Option Activity (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Number of Options Outstanding | ||
| Number of Options Outstanding, Beginning (shares) | 627,317 | |
| Number of Options, Released (shares) | (245,561) | |
| Number of Options Outstanding, Ending (shares) | 381,756 | 627,317 |
| Weighted-Average Exercise Price per Share | ||
| Weighted Average Exercise Price per Share, Outstanding, Beginning (in dollars per share) | $ 7.86 | |
| Weighted-Average Exercise Price per Share, Released (in dollars per share) | 8.78 | |
| Weighted Average Exercise Price per Share, Outstanding, Ending (in dollars per share) | $ 7.28 | $ 7.86 |
| Options outstanding, weighted-average remaining contractual term | 2 years 9 months 18 days | 3 years 5 months 23 days |
| Options outstanding, aggregate intrinsic value | $ 8,942,541 | $ 51,733,285 |
Income Taxes - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Operating Loss Carryforwards [Line Items] | |||
| Provision for income taxes | $ 7,197 | $ 5,360 | $ 2,634 |
| Increase in valuation allowance | 86,500 | 3,300 | |
| Interest and penalties related to uncertain tax positions, increase (decrease) | 100 | 100 | $ 45 |
| Interest and penalties accrued related to uncertain tax positions | 300 | $ 200 | |
| Unrecognized tax benefits that would impact the effective tax rate | 4,500 | ||
| Federal | |||
| Operating Loss Carryforwards [Line Items] | |||
| Net operating loss carryforwards | 660,000 | ||
| Tax credit carryforwards | 21,400 | ||
| State | |||
| Operating Loss Carryforwards [Line Items] | |||
| Net operating loss carryforwards | 485,000 | ||
| Tax credit carryforwards | $ 15,700 | ||
Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Current income taxes: | |||
| Federal | $ 0 | $ 0 | $ (185) |
| State | 852 | 459 | 264 |
| Foreign | 7,449 | 5,010 | 2,594 |
| Total current income taxes | 8,301 | 5,469 | 2,673 |
| Deferred income taxes: | |||
| Federal | 250 | 187 | (17) |
| State | 218 | 255 | 42 |
| Foreign | (1,572) | (551) | (64) |
| Total deferred income taxes | (1,104) | (109) | (39) |
| Total income tax provision | $ 7,197 | $ 5,360 | $ 2,634 |
Income Taxes - Loss before Provision for Income Taxes (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Income Tax Disclosure [Abstract] | |||
| United States | $ (6,256) | $ (10,369) | $ (12,497) |
| Foreign | 11,995 | 9,508 | 5,526 |
| Income (loss) before provision for income taxes | $ 5,739 | $ (861) | $ (6,971) |
Income Taxes - Effective Income Tax Reconciliation (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Income Tax Disclosure [Abstract] | |||
| Income tax at U.S. statutory rate | 21.00% | 21.00% | 21.00% |
| State, net of federal benefit | (232.00%) | (169.50%) | (76.30%) |
| Foreign rate differential | 35.50% | (285.90%) | (19.40%) |
| Share-based compensation | (209.00%) | 2901.50% | 695.40% |
| Non-deductible expenses | 1.50% | (50.30%) | 0.40% |
| Tax credits | (28.30%) | 351.60% | 19.30% |
| Acquisition related | 17.20% | 0.00% | 31.80% |
| Convertible senior notes | (2435.30%) | (5854.80%) | (412.60%) |
| Other | 0.50% | 1.20% | 27.90% |
| Change in valuation allowance | 2954.30% | 2462.70% | (325.30%) |
| Total | 125.40% | (622.50%) | (37.80%) |
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Deferred tax assets: | ||
| Accrued expenses and reserves | $ 6,402 | $ 6,365 |
| Share-based compensation | 8,979 | 6,473 |
| Accrued compensation | 0 | 2,402 |
| Net operating loss carryforwards | 188,329 | 190,904 |
| Property and equipment, textbooks and intangibles assets | 1,849 | 0 |
| Convertible senior notes | 32,254 | 0 |
| Other items | 7,221 | 5,734 |
| Gross deferred tax assets | 245,034 | 211,878 |
| Valuation allowance | (238,317) | (151,825) |
| Total deferred tax assets | 6,717 | 60,053 |
| Deferred tax liabilities: | ||
| Property and equipment, textbooks and intangibles assets | 0 | (4,066) |
| Convertible senior notes | 0 | (51,607) |
| Other | (7,878) | (5,890) |
| Total deferred tax liabilities | (7,878) | (61,563) |
| Net deferred tax liability | $ (1,161) | $ (1,510) |
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Beginning balance | $ 14,654 | $ 10,993 | $ 8,771 |
| Increase in tax positions for prior years | 305 | 479 | 221 |
| Decrease in tax positions for prior years | (952) | (535) | (1,550) |
| Decrease in tax positions for prior year settlement | (22) | (208) | 0 |
| Decrease in tax positions for prior years due to statutes lapsing | (426) | (26) | (164) |
| Increase in tax positions for current year | 3,309 | 3,999 | 3,722 |
| Change due to translation of foreign currencies | (63) | (48) | (7) |
| Ending balance | $ 16,805 | $ 14,654 | $ 10,993 |
Restructuring Charges - Additional Information (Details) $ in Thousands |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2021
full_time_employee
|
Sep. 30, 2021
part_time_employee
|
Dec. 31, 2021
USD ($)
|
Dec. 31, 2020
USD ($)
|
|
| Restructuring and Related Activities [Abstract] | ||||
| Number of positions impacted | 60 | 100 | ||
| Restructuring charges | $ 1,922 | |||
| Payments for restructuring | 1,137 | |||
| Restructuring liability | $ 785 | $ 0 | ||
Restructuring Charges - Accrual For Restructuring Activity (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2021
USD ($)
| |
| Restructuring Reserve [Roll Forward] | |
| Beginning balance | $ 0 |
| Restructuring charges | 1,922 |
| Cash payments | (1,137) |
| Ending balance | $ 785 |
Consolidated Statements of Operations Details (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Other Income and Expenses [Abstract] | |||
| Loss on early extinguishments of debt | $ (78,152) | $ (4,286) | $ 0 |
| Loss on change in fair value of derivative instruments, net | (7,148) | 0 | 0 |
| Gain on sale of strategic equity investments | 12,496 | 0 | 0 |
| Interest income | 6,700 | 12,783 | 19,586 |
| Other | 632 | 186 | 477 |
| Total other (expense) income, net | $ (65,472) | $ 8,683 | $ 20,063 |
Employee Benefit Plan (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Retirement Benefits [Abstract] | |||
| Matching contributions | $ 2.6 | $ 2.2 | $ 1.7 |
Segment Information (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Revenue from External Customer [Line Items] | |||
| Total Revenue | $ 776,265 | $ 644,338 | $ 410,926 |
| United States | |||
| Revenue from External Customer [Line Items] | |||
| Total Revenue | 690,000 | ||
| Internationally | |||
| Revenue from External Customer [Line Items] | |||
| Total Revenue | 86,300 | ||
| Chegg Services | |||
| Revenue from External Customer [Line Items] | |||
| Total Revenue | 669,894 | 521,228 | 332,221 |
| Required Materials | |||
| Revenue from External Customer [Line Items] | |||
| Total Revenue | $ 106,371 | $ 123,110 | $ 78,705 |
Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Accounts receivable allowance | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | $ 153 | $ 56 | $ 229 |
| Provision (Release) for Bad Debts | 57 | 191 | (79) |
| Net Write-offs | (57) | (94) | (94) |
| Balance at End of Year | 153 | 153 | 56 |
| Refund reserve | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | 1,515 | 554 | 396 |
| Provision (Release) for Bad Debts | 58,553 | 44,171 | 24,987 |
| Net Write-offs | (58,676) | (43,210) | (24,829) |
| Balance at End of Year | $ 1,392 | $ 1,515 | $ 554 |
| Label | Element | Value |
|---|---|---|
| Accounting Standards Update [Extensible Enumeration] | us-gaap_AccountingStandardsUpdateExtensibleList | Accounting Standards Update 2016-02 [Member] |