Chegg (CHGG) 10-Q 2 May 22 2022 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2022	Apr. 25, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-36180
Entity Registrant Name	CHEGG, INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-3237489
Entity Address, Address Line One	3990 Freedom Circle
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054
City Area Code	408
Local Phone Number	855-5700
Title of 12(b) Security	Common stock, $0.001 par value per share
Trading Symbol	CHGG
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		125,894,774
Entity Central Index Key	0001364954
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 267,731	$ 854,078
Short-term investments	915,431	691,781
Accounts receivable, net of allowance of $156 and $153 at March 31, 2022 and December 31, 2021, respectively	19,918	17,850
Prepaid expenses	28,882	35,093
Other current assets	14,671	23,846
Total current assets	1,246,633	1,622,648
Long-term investments	435,413	745,993
Textbook library, net	10,651	11,241
Property and equipment, net	187,743	169,938
Goodwill	641,284	289,763
Intangible assets, net	102,685	40,566
Right of use assets	18,879	18,062
Other assets	19,182	21,035
Total assets	2,662,470	2,919,246
Current liabilities
Accounts payable	9,549	11,992
Deferred revenue	60,458	35,143
Accrued liabilities	85,424	67,209
Total current liabilities	155,431	114,344
Long-term liabilities
Convertible senior notes, net	1,679,534	1,678,155
Long-term operating lease liabilities	12,456	12,447
Other long-term liabilities	6,528	7,383
Total long-term liabilities	1,698,518	1,697,985
Total liabilities	1,853,949	1,812,329
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value per share, 10,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $0.001 par value per share: 400,000,000 shares authorized; 126,681,972 and 136,951,956 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	127	137
Additional paid-in capital	1,176,765	1,449,305
Accumulated other comprehensive loss	(36,922)	(5,334)
Accumulated deficit	(331,449)	(337,191)
Total stockholders' equity	808,521	1,106,917
Total liabilities and stockholders' equity	$ 2,662,470	$ 2,919,246

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable, current	$ 156	$ 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)	126,681,972	136,951,956
Common stock, shares outstanding (in shares)	126,681,972	136,951,956

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net revenues	$ 202,244	$ 198,378
Cost of revenues	55,085	71,384
Gross profit	147,159	126,994
Operating expenses:
Research and development	52,415	46,131
Sales and marketing	42,498	26,214
General and administrative	46,870	37,870
Total operating expenses	141,783	110,215
Income from operations	5,376	16,779
Interest expense, net and other income (expense), net:
Interest expense, net	(1,597)	(1,929)
Other income (expense), net	6,180	(77,208)
Total interest expense, net and other income (expense), net	4,583	(79,137)
Income (loss) before provision for income taxes	9,959	(62,358)
Provision for income taxes	(4,217)	(2,821)
Net income (loss)	$ 5,742	$ (65,179)
Net income (loss) per share
Basic (in dollars per share)	$ 0.04	$ (0.49)
Diluted (in dollars per share)	$ 0.04	$ (0.49)
Weighted average shares used to compute net income (loss) per share
Basic (in shares)	132,162	134,352
Diluted (in shares)	133,270	134,352

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 5,742	$ (65,179)
Other comprehensive loss
Change in net unrealized loss on investments, net of tax	(12,917)	(1,894)
Change in foreign currency translation adjustments, net of tax	(18,671)	(874)
Other comprehensive loss	(31,588)	(2,768)
Total comprehensive loss	$ (25,846)	$ (67,947)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Additional Paid-In CapitalCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Accumulated Deficit	Accumulated DeficitCumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2020			129,344,000
Beginning balance at Dec. 31, 2020	$ 609,635	$ (378,138)	$ 129	$ 1,030,577	$ (465,006)	$ 1,530	$ (422,601)	$ 86,868
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with equity offering, net of offering costs (in shares)			10,975,000
Issuance of common stock in connection with equity offering, net of offering costs	1,091,466		$ 11	1,091,455
Equity component on conversions of 2023 notes and 2025 notes	(11,305)			(11,305)
Issuance of common stock upon conversions of 2023 notes (in shares)			126,000
Issuance of common stock upon conversions of 2023 notes	11,237			11,237
Net proceeds from capped call related to conversions of 2023 notes and 2025 notes	23,577			23,577
Issuance of common stock upon exercise of stock options (in shares)			44,000
Issuance of common stock upon exercise of stock options	346			346
Net share settlement of equity awards (in shares)			828,000
Net share settlement of equity awards	(59,175)		$ 1	(59,176)
Share-based compensation expense	23,647			23,647
Other comprehensive loss	(2,768)					(2,768)
Net income (loss)	(65,179)						(65,179)
Ending balance (in shares) at Mar. 31, 2021			141,317,000
Ending balance at Mar. 31, 2021	$ 1,243,343		$ 141	1,645,352		(1,238)	(400,912)
Beginning balance (in shares) at Dec. 31, 2021	136,951,956		136,952,000
Beginning balance at Dec. 31, 2021	$ 1,106,917		$ 137	1,449,305		(5,334)	(337,191)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of common stock (in shares)			(10,725,000)
Repurchases of common stock	(300,450)		$ (11)	(300,439)
Issuance of common stock upon exercise of stock options (in shares)			54,000
Issuance of common stock upon exercise of stock options	455			455
Net share settlement of equity awards (in shares)			401,000
Net share settlement of equity awards	(7,466)		$ 1	(7,467)
Share-based compensation expense	34,911			34,911
Other comprehensive loss	(31,588)					(31,588)
Net income (loss)	$ 5,742						5,742
Ending balance (in shares) at Mar. 31, 2022	126,681,972		126,682,000
Ending balance at Mar. 31, 2022	$ 808,521		$ 127	$ 1,176,765		$ (36,922)	$ (331,449)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income (loss)	$ 5,742	$ (65,179)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Print textbook depreciation expense	1,521	3,760
Other depreciation and amortization expense	20,285	14,846
Share-based compensation expense	33,084	23,100
Amortization of debt issuance costs	1,382	1,626
Gain on foreign currency remeasurement of purchase consideration	(4,628)	0
Loss on early extinguishment of debt	0	78,152
Loss on change in fair value of derivative instruments, net	0	7,148
Loss from write-off of property and equipment	626	757
Gain on sale of strategic equity investment	0	(5,338)
(Gain) loss on textbook library, net	(610)	4,028
Operating lease expense, net of accretion	1,640	1,589
Other non-cash items	(737)	87
Change in assets and liabilities, net of effect of acquisition of businesses:
Accounts receivable	292	2,240
Prepaid expenses and other current assets	21,722	(25,075)
Other assets	8,342	1,058
Accounts payable	(7,534)	6,597
Deferred revenue	8,554	15,988
Accrued liabilities	(7,555)	9,386
Other liabilities	(2,091)	(1,197)
Net cash provided by operating activities	80,035	73,573
Cash flows from investing activities
Purchases of property and equipment	(29,533)	(18,984)
Purchases of textbooks	(3,692)	(4,527)
Proceeds from disposition of textbooks	2,499	4,038
Purchases of investments	(273,280)	(925,748)
Maturities of investments	342,059	181,315
Proceeds from sale of strategic equity investment	0	6,845
Acquisition of businesses, net of cash acquired	(401,125)	(7,891)
Net cash used in investing activities	(363,072)	(764,952)
Cash flows from financing activities
Proceeds from common stock issued under stock plans, net	456	347
Payment of taxes related to the net share settlement of equity awards	(7,467)	(59,176)
Proceeds from equity offering, net of offering costs	0	1,091,466
Repayment of convertible senior notes	0	(189,849)
Proceeds from exercise of convertible senior notes capped call	0	24,812
Repurchases of common stock	(300,450)	0
Net cash (used in) provided by financing activities	(307,461)	867,600
Effect of exchange rate changes	4,628	0
Net (decrease) increase in cash, cash equivalents and restricted cash	(585,870)	176,221
Cash, cash equivalents and restricted cash, beginning of period	855,893	481,715
Cash, cash equivalents and restricted cash, end of period	270,023	657,936
Supplemental cash flow data:
Interest	437	502
Income taxes, net of refunds	1,101	3,063
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	1,852	1,998
Right of use assets obtained in exchange for lease obligations, operating lease	2,715	0
Non-cash investing and financing activities:
Accrued purchases of long-lived assets	5,778	904
Issuance of common stock related to repayment of convertible senior notes	0	11,237
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	267,731	656,168
Restricted cash included in other current assets	70	38
Restricted cash included in other assets	2,222	1,730
Total cash, cash equivalents and restricted cash	$ 270,023	$ 657,936

Background and Basis of Present

Background and Basis of Presentation	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Background and Basis of Presentation	Background and Basis of Presentation Company and Background Chegg, Inc. (Chegg, the Company, we, us, or our), 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 The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated financial statements include the results of Chegg, Inc. and its wholly-owned subsidiaries. Significant intercompany balances and transactions have been eliminated. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of March 31, 2022, our results of operations, results of comprehensive loss, stockholders' equity and cash flows for the three months ended March 31, 2022 and 2021. Our results of operations, results of comprehensive loss, stockholders' equity, and cash flows for the three months ended March 31, 2022 are not necessarily indicative of the results to be expected for the full year. We have a single operating and reportable segment and operating unit structure. The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended December 31, 2021 (the Annual Report on Form 10-K) filed with the SEC. There have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K. Use of Estimates The preparation of financial statements in conformity with GAAP 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. 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. There have been no material changes in our use of estimates during the three months ended March 31, 2022 as compared to the use of estimates disclosed in Part II, Item 8 “Consolidated Financial Statements and Supplementary Data” contained in our Annual Report on Form 10-K for the year ended December 31, 2021. Condensed Consolidated Statements of Operations Details Other income (expense), net consists of the following (in thousands): Three Months Ended 2022 2021 Loss on early extinguishment of debt $ — $ (78,152) Loss on change in fair value of derivative instruments, net — (7,148) Gain on sale of strategic equity investments — 5,338 Gain on foreign currency remeasurement of purchase consideration (1) 4,628 — Interest income 1,477 2,049 Other 75 705 Total other income (expense), net $ 6,180 $ (77,208) (1) For further information, see Note 5, “Acquisition.” Recent Accounting Pronouncements Recently Issued Accounting Pronouncements Not Yet Adopted There were no accounting pronouncements issued during the three months ended March 31, 2022 that would have an impact on our financial statements. Recently Adopted Accounting Pronouncements 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, and early adoption is permitted. We early adopted ASU 2021-08 on January 1, 2022 and applied it to our acquisition of Busuu. The most significant impacts were an increase in contract liabilities, contained within deferred revenue, and goodwill. 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 adopted ASU 2021-04 on January 1, 2022 under the prospective method of adoption and there was no impact to our results of operations as we did not modify or exchange any freestanding equity-classified written call options.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2022
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 tables set forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages): Three Months Ended Change 2022 2021 $ % Chegg Services $ 184,812 $ 162,351 $ 22,461 14 % Required Materials 17,432 36,027 (18,595) (52) Total net revenues $ 202,244 $ 198,378 $ 3,866 2 During the three months ended March 31, 2022 and 2021, we recognized $30.9 million and $29.5 million, respectively, of revenues that were included in our deferred revenue balance at the beginning of each respective reporting period. During the three months ended March 31, 2022 and 2021, we recognized $4.8 million and $10.7 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): Change March 31, December 31, 2021 $ % Accounts receivable, net $ 19,918 $ 17,850 $ 2,068 12 % Contract assets 13,670 14,231 (561) (4) Deferred revenue 60,458 35,143 25,315 72

Net Income (Loss) Per Share

Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income (Loss) Per Share The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended 2022 2021 Basic Numerator: Net income (loss) $ 5,742 $ (65,179) Denominator: Weighted average shares used to compute net income (loss) per share, basic 132,162 134,352 Net income (loss) per share, basic $ 0.04 $ (0.49) Diluted Numerator: Net income (loss) $ 5,742 $ (65,179) Denominator: Weighted average shares used to compute net income (loss) per share, basic 132,162 134,352 Shares related to stock plan activity 1,108 — Weighted average shares used to compute net income (loss) per share, diluted 133,270 134,352 Net income (loss) per share, diluted $ 0.04 $ (0.49) The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net income (loss) per share because including them would have been anti-dilutive (in thousands): Three Months Ended 2022 2021 Shares related to stock plan activity 2,300 3,563 Shares related to convertible senior notes 22,875 28,818 Total common stock equivalents 25,175 32,381

Cash and Cash Equivalents, and

Cash and Cash Equivalents, and Investments and Fair Value Measurements	3 Months Ended
	Mar. 31, 2022
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 March 31, 2022 and December 31, 2021 (in thousands except for fair value levels): March 31, 2022 Fair Value Level Adjusted Cost Unrealized Gain Unrealized Loss Fair Value Cash and cash equivalents: Cash $ 39,413 $ — $ — $ 39,413 Money market funds Level 1 228,318 — — 228,318 Total cash and cash equivalents $ 267,731 $ — $ — $ 267,731 Short-term investments: Commercial paper Level 2 $ 86,583 $ — $ (443) $ 86,140 Corporate debt securities Level 2 765,556 9 (6,045) 759,520 U.S. treasury securities Level 1 54,718 — (436) 54,282 Agency bonds Level 2 15,501 — (12) 15,489 Total short-term investments $ 922,358 $ 9 $ (6,936) $ 915,431 Long-term investments: Corporate debt securities Level 2 $ 346,032 $ — $ (7,939) $ 338,093 U.S. treasury securities Level 1 99,294 — (1,974) 97,320 Total long-term investments $ 445,326 $ — $ (9,913) $ 435,413 December 31, 2021 Fair Value Level Adjusted Cost Unrealized Gain Unrealized Loss Fair Value Cash and cash equivalents: Cash $ 30,324 $ — $ — $ 30,324 Money market funds Level 1 823,754 — — 823,754 Total cash and cash equivalents $ 854,078 $ — $ — $ 854,078 Short-term investments: Commercial paper Level 2 $ 124,211 $ 2 $ (33) $ 124,180 Corporate debt securities Level 2 552,609 36 (546) 552,099 Agency bonds Level 2 15,500 2 — 15,502 Total short-term investments $ 692,320 $ 40 $ (579) $ 691,781 Long-term investments: Corporate debt securities Level 2 $ 724,517 $ — $ (3,277) $ 721,240 U.S. treasury securities Level 1 24,860 — (107) 24,753 Total long-term investments $ 749,377 $ — $ (3,384) $ 745,993 As of March 31, 2022, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. During the three months ended March 31, 2022 and 2021 we did not recognize any losses on our investments due to credit related factors. During the three months ended March 31, 2022 and 2021, 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 March 31, 2022 (in thousands): Adjusted Cost Fair Value Due in 1 year or less $ 922,358 $ 915,431 Due in 1-2 years 445,326 435,413 Investments not due at a single maturity date 228,318 228,318 Total $ 1,596,002 $ 1,579,162 Investments not due at a single maturity date in the preceding table consisted of money market funds. 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. The estimated fair value of the 2026 notes as of March 31, 2022 and December 31, 2021 was $818.8 million and $840.0 million, respectively. The estimated fair value of the 2025 notes as of March 31, 2022 and December 31, 2021 was $708.8 million and $682.2 million, respectively. For further information on the notes refer to Note 7, “Convertible Senior Notes.”

Acquisition

Acquisition	3 Months Ended
	Mar. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Acquisition	Acquisition On January 13, 2022, we completed our acquisition of 100% of the outstanding shares of Busuu Online S.L (Busuu) in cash, 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. The acquisition helps to expand our existing offerings and global reach through language learning, allowing us to drive further into international markets. The following table presents the preliminary allocation of purchase consideration recorded on our condensed consolidated balance sheet as of the acquisition date (in thousands): Busuu Cash and cash equivalents $ 20,525 Accounts receivable 2,446 Right of use assets 2,715 Other acquired assets 3,710 Acquired intangible assets 71,600 Total identifiable assets acquired 100,996 Accounts payable (5,174) Accrued liabilities (22,749) Deferred revenue (16,761) Long term operating lease liabilities (2,038) Net identifiable assets acquired 54,274 Goodwill 367,376 Total fair value of purchase consideration $ 421,650 The estimates and assumptions regarding the fair value of certain tangible assets acquired and liabilities assumed, the valuation of intangible assets acquired, income taxes, and goodwill are subject to change as we obtain additional information during the measurement period, which usually lasts for up to one year from the acquisition date. Goodwill is primarily attributable to the potential for expanding our offerings to include an online language learning platform and global reach allowing us to drive further into international markets. Substantially all of 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): Busuu Amount Weighted-Average Amortization Period (in months) Trade name $ 4,600 72 Customer lists 18,000 24 Developed technology 49,000 84 Total acquired intangible assets $ 71,600 68 During the three months ended March 31, 2022 and year ended December 31, 2021, we incurred acquisition-related expenses of $0.5 million and $5.3 million, respectively, associated with our acquisition of Busuu, which have been included in general and administrative expense on our condensed consolidated statement of operations. The purchase consideration was paid in Euros, which is different from our functional currency of United States Dollars. We initially funded an equivalent of $417.0 million that was remeasured at $421.7 million at closing, which is included in our statement of cash flows as a cash outflow from investing activities net of cash acquired, resulting in a $4.6 million gain included in other income (expense), net on our condensed consolidated statement of operations. The Busuu purchase agreement provides for additional payments of up to approximately $25.5 million, subject to the continued employment of certain key employees. These payments are not included in the fair value of the purchase consideration but rather are expensed ratably as acquisition-related compensation costs and classified based on the seller's job function, on our condensed consolidated statement of operations. As of March 31, 2022, we have recorded approximately $1.8 million within accrued liabilities on our condensed consolidated balance sheets for these payments.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill consists of the following (in thousands): Three Months Ended March 31, 2022 Beginning balance $ 289,763 Additions due to acquisitions 367,376 Foreign currency translation adjustment (15,855) Ending balance $ 641,284 Intangible assets consist of the following (in thousands, except weighted-average amortization period): March 31, 2022 Weighted-Average Amortization Period (in months) Gross Carrying Amount Accumulated Amortization Foreign Currency Translation Adjustment Net Carrying Amount Developed technologies 80 $ 106,703 $ (34,921) $ (2,165) $ 69,617 Content libraries 60 12,230 (7,447) — 4,783 Customer lists 35 34,190 (14,756) (772) 18,662 Trade and domain names 52 16,213 (9,993) (197) 6,023 Indefinite-lived trade name — 3,600 — — 3,600 Total intangible assets, net 67 $ 172,936 $ (67,117) $ (3,134) $ 102,685 December 31, 2021 Weighted-Average Amortization Gross Accumulated Foreign Currency Translation Adjustment Net Developed technologies 76 $ 57,521 $ (31,790) $ — $ 25,731 Content library 60 12,230 (6,836) — 5,394 Customer lists 47 16,190 (12,432) — 3,758 Trade and domain names 44 11,613 (9,530) — 2,083 Indefinite-lived trade name — 3,600 — — 3,600 Total intangible assets, net 65 $ 101,154 $ (60,588) $ — $ 40,566 During the three months ended March 31, 2022 and 2021, amortization expense related to our finite-lived intangible assets totaled approximately $6.4 million and $4.4 million, respectively. As of March 31, 2022, the estimated future amortization expense related to our finite-lived intangible assets is as follows (in thousands): Remaining nine months of 2022 $ 20,402 2023 25,203 2024 13,858 2025 11,744 2026 11,396 Thereafter 16,482 Total $ 99,085

Convertible Senior Notes

Convertible Senior Notes	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Convertible Senior Notes	Convertible Senior NotesIn 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, together with the 2026 notes, the 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. The notes were issued in private placements to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933, as amended. The total net proceeds from the notes are as follows (in thousands): 2026 Notes 2025 Notes Principal amount $ 1,000,000 $ 800,000 Less initial purchasers’ discount (15,000) (18,998) Less other issuance costs (904) (822) Net proceeds $ 984,096 $ 780,180 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. 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. 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. During the three months ended March 31, 2022, the conditions allowing holders of the 2026 notes and 2025 notes to convert were not met and therefore the 2026 notes and 2025 notes are not convertible the following quarter. During the year ended December 31, 2021, we issued 2,983,011 shares of our common stock related to the redemption of our 2023 notes. The net carrying amount of the notes is as follows (in thousands): March 31, 2022 December 31, 2021 2026 Notes 2025 Notes 2026 Notes 2025 Notes Principal $ 1,000,000 $ 699,979 $ 1,000,000 $ 699,982 Unamortized issuance costs (11,659) (8,786) (12,309) (9,518) Net carrying amount $ 988,341 $ 691,193 $ 987,691 $ 690,464 The following tables set forth the total interest expense recognized related to the notes (in thousands): Three Months Ended March 31, 2022 2021 2026 notes: Contractual interest expense $ — $ — Amortization of issuance costs 650 650 Total 2026 notes interest expense $ 650 $ 650 2025 notes: Contractual interest expense $ 215 $ 237 Amortization of issuance costs 732 808 Total 2025 notes interest expense $ 947 $ 1,045 2023 notes: Contractual interest expense $ — $ 66 Amortization of issuance costs — 168 Total 2023 notes interest expense $ — $ 234 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 March 31, 2022, cover 9,297,800 and 13,576,513 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 condensed 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.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2022
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 March 30, 2022, Joseph Robinson, 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, among others (the “Robinson Matter”). The Robinson Matter has been consolidated with the Choi Matter (described below) and has been stayed on the same terms. The Company disputes these claims and intends to vigorously defend itself in this matter. 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 “Choi Matter”). The Company disputes these claims and intends to vigorously defend itself in this matter. On March 1, 2022, the court entered an order deeming the Choi Matter related to the Leventhal Matter (described below). On March 29, 2022, the plaintiff and defendants in the Choi matter entered into a stipulation and order staying action stipulating that the Choi Matter shall be stayed during the pendency of the Leventhal 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 “Leventhal Matter”). 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 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. 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 were filed by the same counsel in Maryland and California. We disputed that these claimants had a valid basis for seeking arbitration, asserted that they have acted in bad faith and have been working with the Maryland and California courts and plaintiffs’ counsel on resolution of these claims. The Maryland case is now closed. 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. As a result of the settlement, all but four petitions to compel arbitration in the California action were dismissed with prejudice. We have not recorded any loss contingency accruals related to the above matters as we do not believe that a loss is probable in these 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.

Guarantees and Indemnifications

Guarantees and Indemnifications	3 Months Ended
	Mar. 31, 2022
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 March 31, 2022.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Stockholders' Equity	Stockholders' Equity Accelerated Share Repurchases On February 22, 2022, we entered into an accelerated share repurchase (ASR) agreement with a financial institution (2022 ASR). We accounted for the 2022 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 8,562,255 shares of our common stock over the following three business days, 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 2022 ASR was recorded as a reduction to additional paid in capital on our condensed consolidated statements of stockholders’ equity. The 2022 ASR settled during the second quarter of 2022 and we received an additional delivery of 837,001 shares of our common stock, which were retired immediately. The 2022 ASR resulted in a total repurchase of 9,399,256 shares of our common stock at a volume-weighted-average price, less an agreed upon discount, $31.9174 per share. We were not required to make any additional cash payments or delivery of common stock to the financial institutions upon settlement. On December 3, 2021, we entered into an ASR agreement with a financial institution (2021 ASR) to repurchase $300.0 million of our outstanding common stock. The 2021 ASR settled during the three months ended March 31, 2022 and we received an additional delivery of 2,163,219 shares of our common stock. Share-based Compensation Expense Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands): Three Months Ended 2022 2021 Cost of revenues $ 623 $ 362 Research and development 11,776 7,959 Sales and marketing 4,386 2,919 General and administrative 16,299 11,860 Total share-based compensation expense $ 33,084 $ 23,100 During the three months ended March 31, 2022 and 2021, we capitalized share-based compensation expense of $1.8 million and $0.5 million, respectively. RSU and PSU Activity Activity for RSUs and PSUs is as follows: RSUs and PSUs Outstanding Shares Outstanding Weighted Average Grant Date Fair Value Balance at December 31, 2021 8,171,462 $ 46.36 Granted 2,472,933 33.21 Released (642,952) 68.70 Forfeited (598,243) 44.26 Balance at March 31, 2022 9,403,200 $ 41.51 As of March 31, 2022, our total unrecognized share-based compensation expense related to RSUs and PSUs was approximately $296.1 million, which will be recognized over the remaining weighted-average vesting period of approximately 2.5 years.

Subsequent Event

Subsequent Event	3 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event In April 2022, we entered into definitive agreements regarding the sale of our print textbook library and partnership with GT Marketplace, LLC (doing business as “BBA”) for our Required Materials offering. We will continue to offer our Required Materials offering on our website and maintain relationships with the students, however, BBA has purchased our existing print textbook library for $14 million, subject to payment terms and certain adjustments, and will continue to make print textbook investments and provide fulfillment logistics for print textbook transactions. We expect that we will continue to fulfill eTextbook transactions through the end of 2022, at which point BBA will fulfill eTextbook transactions. As a result of the partnership with BBA, revenues from print textbook transactions will consist of a revenue share of the total transactions recognized immediately rather than the total amounts recognized ratably over the rental term, generally a two- to five-month period. Revenues from eTextbook transactions will continue to be recognized at the gross amount ratably over the contractual period, generally a two- to five-month period, through the expected transition period, at which point they will be recognized as a revenue share immediately. We will no longer incur significant costs of revenue such as order fulfillment fees primarily related to shipping and fulfillment, publisher content fees for eTextbooks after transition to BBA, and print textbook depreciation and write off expense. We will continue to incur costs of revenue such as payment processing fees and employee related costs as well as ongoing operating expenses such as platform infrastructure maintenance and transition costs. Upon board of directors approval in April 2022, our net textbook library and unrecognized deferred revenue related to print textbook transactions became a held for sale asset group which was subsequently sold to BBA at a gain as the consideration exceeds the carrying amount of the held for sale asset group. The initial accounting for the sale of our print textbook library is in process as of the issuance date of our financial statements and therefore we are unable to make any additional disclosures.

Background and Basis of Prese_2

Background and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated financial statements include the results of Chegg, Inc. and its wholly-owned subsidiaries. Significant intercompany balances and transactions have been eliminated. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of March 31, 2022, our results of operations, results of comprehensive loss, stockholders' equity and cash flows for the three months ended March 31, 2022 and 2021. Our results of operations, results of comprehensive loss, stockholders' equity, and cash flows for the three months ended March 31, 2022 are not necessarily indicative of the results to be expected for the full year. We have a single operating and reportable segment and operating unit structure. The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended December 31, 2021 (the Annual Report on Form 10-K) filed with the SEC.
Use of Estimates	Use of EstimatesThe preparation of financial statements in conformity with GAAP 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. 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.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Issued Accounting Pronouncements Not Yet Adopted There were no accounting pronouncements issued during the three months ended March 31, 2022 that would have an impact on our financial statements. Recently Adopted Accounting Pronouncements 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, and early adoption is permitted. We early adopted ASU 2021-08 on January 1, 2022 and applied it to our acquisition of Busuu. The most significant impacts were an increase in contract liabilities, contained within deferred revenue, and goodwill. 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 adopted ASU 2021-04 on January 1, 2022 under the prospective method of adoption and there was no impact to our results of operations as we did not modify or exchange any freestanding equity-classified written call options.

Background and Basis of Prese_3

Background and Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Other Nonoperating Income (Expense)	Other income (expense), net consists of the following (in thousands): Three Months Ended 2022 2021 Loss on early extinguishment of debt $ — $ (78,152) Loss on change in fair value of derivative instruments, net — (7,148) Gain on sale of strategic equity investments — 5,338 Gain on foreign currency remeasurement of purchase consideration (1) 4,628 — Interest income 1,477 2,049 Other 75 705 Total other income (expense), net $ 6,180 $ (77,208) (1) For further information, see Note 5, “Acquisition.”

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables set forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages): Three Months Ended Change 2022 2021 $ % Chegg Services $ 184,812 $ 162,351 $ 22,461 14 % Required Materials 17,432 36,027 (18,595) (52) Total net revenues $ 202,244 $ 198,378 $ 3,866 2
Schedule of Accounts Receivable	The following table presents our accounts receivable, net, contract assets and deferred revenue balances (in thousands, except percentages): Change March 31, December 31, 2021 $ % Accounts receivable, net $ 19,918 $ 17,850 $ 2,068 12 % Contract assets 13,670 14,231 (561) (4) Deferred revenue 60,458 35,143 25,315 72

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended 2022 2021 Basic Numerator: Net income (loss) $ 5,742 $ (65,179) Denominator: Weighted average shares used to compute net income (loss) per share, basic 132,162 134,352 Net income (loss) per share, basic $ 0.04 $ (0.49) Diluted Numerator: Net income (loss) $ 5,742 $ (65,179) Denominator: Weighted average shares used to compute net income (loss) per share, basic 132,162 134,352 Shares related to stock plan activity 1,108 — Weighted average shares used to compute net income (loss) per share, diluted 133,270 134,352 Net income (loss) per share, diluted $ 0.04 $ (0.49)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net income (loss) per share because including them would have been anti-dilutive (in thousands): Three Months Ended 2022 2021 Shares related to stock plan activity 2,300 3,563 Shares related to convertible senior notes 22,875 28,818 Total common stock equivalents 25,175 32,381

Cash and Cash Equivalents, an_2

Cash and Cash Equivalents, and Investments and Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2022
Cash and Cash Equivalents [Abstract]
Cash, 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 March 31, 2022 and December 31, 2021 (in thousands except for fair value levels): March 31, 2022 Fair Value Level Adjusted Cost Unrealized Gain Unrealized Loss Fair Value Cash and cash equivalents: Cash $ 39,413 $ — $ — $ 39,413 Money market funds Level 1 228,318 — — 228,318 Total cash and cash equivalents $ 267,731 $ — $ — $ 267,731 Short-term investments: Commercial paper Level 2 $ 86,583 $ — $ (443) $ 86,140 Corporate debt securities Level 2 765,556 9 (6,045) 759,520 U.S. treasury securities Level 1 54,718 — (436) 54,282 Agency bonds Level 2 15,501 — (12) 15,489 Total short-term investments $ 922,358 $ 9 $ (6,936) $ 915,431 Long-term investments: Corporate debt securities Level 2 $ 346,032 $ — $ (7,939) $ 338,093 U.S. treasury securities Level 1 99,294 — (1,974) 97,320 Total long-term investments $ 445,326 $ — $ (9,913) $ 435,413 December 31, 2021 Fair Value Level Adjusted Cost Unrealized Gain Unrealized Loss Fair Value Cash and cash equivalents: Cash $ 30,324 $ — $ — $ 30,324 Money market funds Level 1 823,754 — — 823,754 Total cash and cash equivalents $ 854,078 $ — $ — $ 854,078 Short-term investments: Commercial paper Level 2 $ 124,211 $ 2 $ (33) $ 124,180 Corporate debt securities Level 2 552,609 36 (546) 552,099 Agency bonds Level 2 15,500 2 — 15,502 Total short-term investments $ 692,320 $ 40 $ (579) $ 691,781 Long-term investments: Corporate debt securities Level 2 $ 724,517 $ — $ (3,277) $ 721,240 U.S. treasury securities Level 1 24,860 — (107) 24,753 Total long-term investments $ 749,377 $ — $ (3,384) $ 745,993
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 March 31, 2022 (in thousands): Adjusted Cost Fair Value Due in 1 year or less $ 922,358 $ 915,431 Due in 1-2 years 445,326 435,413 Investments not due at a single maturity date 228,318 228,318 Total $ 1,596,002 $ 1,579,162

Acquisition (Tables)

Acquisition (Tables)	3 Months Ended
	Mar. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table presents the preliminary allocation of purchase consideration recorded on our condensed consolidated balance sheet as of the acquisition date (in thousands): Busuu Cash and cash equivalents $ 20,525 Accounts receivable 2,446 Right of use assets 2,715 Other acquired assets 3,710 Acquired intangible assets 71,600 Total identifiable assets acquired 100,996 Accounts payable (5,174) Accrued liabilities (22,749) Deferred revenue (16,761) Long term operating lease liabilities (2,038) Net identifiable assets acquired 54,274 Goodwill 367,376 Total fair value of purchase consideration $ 421,650
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): Busuu Amount Weighted-Average Amortization Period (in months) Trade name $ 4,600 72 Customer lists 18,000 24 Developed technology 49,000 84 Total acquired intangible assets $ 71,600 68

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Goodwill consists of the following (in thousands): Three Months Ended March 31, 2022 Beginning balance $ 289,763 Additions due to acquisitions 367,376 Foreign currency translation adjustment (15,855) Ending balance $ 641,284
Finite-lived Intangible Assets	Intangible assets consist of the following (in thousands, except weighted-average amortization period): March 31, 2022 Weighted-Average Amortization Period (in months) Gross Carrying Amount Accumulated Amortization Foreign Currency Translation Adjustment Net Carrying Amount Developed technologies 80 $ 106,703 $ (34,921) $ (2,165) $ 69,617 Content libraries 60 12,230 (7,447) — 4,783 Customer lists 35 34,190 (14,756) (772) 18,662 Trade and domain names 52 16,213 (9,993) (197) 6,023 Indefinite-lived trade name — 3,600 — — 3,600 Total intangible assets, net 67 $ 172,936 $ (67,117) $ (3,134) $ 102,685 December 31, 2021 Weighted-Average Amortization Gross Accumulated Foreign Currency Translation Adjustment Net Developed technologies 76 $ 57,521 $ (31,790) $ — $ 25,731 Content library 60 12,230 (6,836) — 5,394 Customer lists 47 16,190 (12,432) — 3,758 Trade and domain names 44 11,613 (9,530) — 2,083 Indefinite-lived trade name — 3,600 — — 3,600 Total intangible assets, net 65 $ 101,154 $ (60,588) $ — $ 40,566
Indefinite-lived Intangible Assets	Intangible assets consist of the following (in thousands, except weighted-average amortization period): March 31, 2022 Weighted-Average Amortization Period (in months) Gross Carrying Amount Accumulated Amortization Foreign Currency Translation Adjustment Net Carrying Amount Developed technologies 80 $ 106,703 $ (34,921) $ (2,165) $ 69,617 Content libraries 60 12,230 (7,447) — 4,783 Customer lists 35 34,190 (14,756) (772) 18,662 Trade and domain names 52 16,213 (9,993) (197) 6,023 Indefinite-lived trade name — 3,600 — — 3,600 Total intangible assets, net 67 $ 172,936 $ (67,117) $ (3,134) $ 102,685 December 31, 2021 Weighted-Average Amortization Gross Accumulated Foreign Currency Translation Adjustment Net Developed technologies 76 $ 57,521 $ (31,790) $ — $ 25,731 Content library 60 12,230 (6,836) — 5,394 Customer lists 47 16,190 (12,432) — 3,758 Trade and domain names 44 11,613 (9,530) — 2,083 Indefinite-lived trade name — 3,600 — — 3,600 Total intangible assets, net 65 $ 101,154 $ (60,588) $ — $ 40,566
Estimated Future Amortization Expense Related to Intangible Assets	As of March 31, 2022, the estimated future amortization expense related to our finite-lived intangible assets is as follows (in thousands): Remaining nine months of 2022 $ 20,402 2023 25,203 2024 13,858 2025 11,744 2026 11,396 Thereafter 16,482 Total $ 99,085

Convertible Senior Notes (Table

Convertible Senior Notes (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The total net proceeds from the notes are as follows (in thousands): 2026 Notes 2025 Notes Principal amount $ 1,000,000 $ 800,000 Less initial purchasers’ discount (15,000) (18,998) Less other issuance costs (904) (822) Net proceeds $ 984,096 $ 780,180
Schedule of Debt	The net carrying amount of the notes is as follows (in thousands): March 31, 2022 December 31, 2021 2026 Notes 2025 Notes 2026 Notes 2025 Notes Principal $ 1,000,000 $ 699,979 $ 1,000,000 $ 699,982 Unamortized issuance costs (11,659) (8,786) (12,309) (9,518) Net carrying amount $ 988,341 $ 691,193 $ 987,691 $ 690,464
Schedule Of Interest Expense Recognized	The following tables set forth the total interest expense recognized related to the notes (in thousands): Three Months Ended March 31, 2022 2021 2026 notes: Contractual interest expense $ — $ — Amortization of issuance costs 650 650 Total 2026 notes interest expense $ 650 $ 650 2025 notes: Contractual interest expense $ 215 $ 237 Amortization of issuance costs 732 808 Total 2025 notes interest expense $ 947 $ 1,045 2023 notes: Contractual interest expense $ — $ 66 Amortization of issuance costs — 168 Total 2023 notes interest expense $ — $ 234

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2022
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): Three Months Ended 2022 2021 Cost of revenues $ 623 $ 362 Research and development 11,776 7,959 Sales and marketing 4,386 2,919 General and administrative 16,299 11,860 Total share-based compensation expense $ 33,084 $ 23,100
Summary of Restricted Stock Unit Activity	Activity for RSUs and PSUs is as follows: RSUs and PSUs Outstanding Shares Outstanding Weighted Average Grant Date Fair Value Balance at December 31, 2021 8,171,462 $ 46.36 Granted 2,472,933 33.21 Released (642,952) 68.70 Forfeited (598,243) 44.26 Balance at March 31, 2022 9,403,200 $ 41.51

Background and Basis of Prese_4

Background and Basis of Presentation - Narrative (Details)	3 Months Ended
	Mar. 31, 2022segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operating segments	1
Number of reportable segments	1

Background and Basis of Prese_5

Background and Basis of Presentation - Other Income (Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Loss on early extinguishment of debt	$ 0	$ (78,152)
Loss on change in fair value of derivative instruments, net	0	(7,148)
Gain on sale of strategic equity investments	0	5,338
Gain on foreign currency remeasurement of purchase consideration	4,628	0
Interest income	1,477	2,049
Other	75	705
Total other income (expense), net	$ 6,180	$ (77,208)

Revenues - Disaggregation of Re

Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total net revenues	$ 202,244	$ 198,378
Change, Total net revenues	$ 3,866
Change, Total net revenues, percent	2.00%
Chegg Services
Disaggregation of Revenue [Line Items]
Total net revenues	$ 184,812	162,351
Change, Total net revenues	$ 22,461
Change, Total net revenues, percent	14.00%
Required Materials
Disaggregation of Revenue [Line Items]
Total net revenues	$ 17,432	$ 36,027
Change, Total net revenues	$ (18,595)
Change, Total net revenues, percent	(52.00%)

Revenues - Narrative (Details)

Revenues - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Contract with customer, liability, revenue recognized	$ 30,900	$ 29,500
Accounts receivable, net	$ 2,068
Accounts receivable, net, percent	12.00%
Contract assets	$ (561)
Contract assets, percent	(4.00%)
Deferred revenue	$ 25,315
Deferred revenue, percent	72.00%
Textbook Library
Disaggregation of Revenue [Line Items]
Operating lease income	$ 4,800	$ 10,700

Revenues - Contract Balances (D

Revenues - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 19,918	$ 17,850
Change, Accounts receivable, net	$ 2,068
Change, Accounts receivable, net, percent	12.00%
Contract assets	$ 13,670	14,231
Change, Contract assets	$ (561)
Change, Contract assets, percent	(4.00%)
Deferred revenue	$ 60,458	$ 35,143
Change, Deferred revenue	$ 25,315
Change, Deferred revenue, percent	72.00%

Net Income (Loss) Per Share - C

Net Income (Loss) Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income (loss)	$ 5,742	$ (65,179)
Denominator:
Weighted average shares used to compute net income (loss) per share, basic (in shares)	132,162	134,352
Net income (loss) per share, basic (in dollars per share)	$ 0.04	$ (0.49)
Weighted average shares used to compute net income (loss) per share, diluted (in shares)	133,270	134,352
Net income (loss) per share, diluted (in dollars per share)	$ 0.04	$ (0.49)
Shares related to stock plan activity
Denominator:
Incremental common shares attributable to dilutive effect (in shares)	1,108	0

Net Income (Loss) Per Share - S

Net Income (Loss) Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total common stock equivalents (in shares)	25,175	32,381
Shares related to stock plan activity
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total common stock equivalents (in shares)	2,300	3,563
Shares related to convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total common stock equivalents (in shares)	22,875	28,818

Cash and Cash Equivalents, an_3

Cash and Cash Equivalents, and Investments and Fair Value Measurements - Schedule of Available For Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	$ 1,596,002
Fair Value	1,579,162
Cash and cash equivalents:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	267,731	$ 854,078
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	267,731	854,078
Short-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	922,358	692,320
Unrealized Gain	9	40
Unrealized Loss	(6,936)	(579)
Fair Value	915,431	691,781
Long-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	445,326	749,377
Unrealized Gain	0	0
Unrealized Loss	(9,913)	(3,384)
Fair Value	435,413	745,993
Commercial paper | Short-term investments: | Level 2
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	86,583	124,211
Unrealized Gain	0	2
Unrealized Loss	(443)	(33)
Fair Value	86,140	124,180
Corporate debt securities | Short-term investments: | Level 2
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	765,556	552,609
Unrealized Gain	9	36
Unrealized Loss	(6,045)	(546)
Fair Value	759,520	552,099
Corporate debt securities | Long-term investments: | Level 2
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	346,032	724,517
Unrealized Gain	0	0
Unrealized Loss	(7,939)	(3,277)
Fair Value	338,093	721,240
U.S. treasury securities | Short-term investments: | Level 1
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	54,718
Unrealized Gain	0
Unrealized Loss	(436)
Fair Value	54,282
U.S. treasury securities | Long-term investments: | Level 1
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	99,294	24,860
Unrealized Gain	0	0
Unrealized Loss	(1,974)	(107)
Fair Value	97,320	24,753
Agency bonds | Short-term investments: | Level 2
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	15,501	15,500
Unrealized Gain	0	2
Unrealized Loss	(12)	0
Fair Value	15,489	15,502
Cash | Cash and cash equivalents:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	39,413	30,324
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	39,413	30,324
Money market funds | Cash and cash equivalents: | Level 1
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	228,318	823,754
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	$ 228,318	$ 823,754

Cash and Cash Equivalents, an_4

Cash and Cash Equivalents, and Investments and Fair Value Measurements - Contractual Maturity (Details) $ in Thousands	Mar. 31, 2022USD ($)
Adjusted Cost
Due in 1 year or less	$ 922,358
Due in 1-2 years	445,326
Investments not due at a single maturity date	228,318
Adjusted Cost	1,596,002
Fair Value
Due in 1 year or less	915,431
Due in 1-2 years	435,413
Investments not due at a single maturity date	228,318
Total, Fair Value	$ 1,579,162

Cash and Cash Equivalents, an_5

Cash and Cash Equivalents, and Investments and Fair Value Measurements - Debt (Details) - Estimate of Fair Value Measurement - Senior Notes - Fair Value, Measurements, Nonrecurring - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
2026 Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible senior notes	$ 818.8	$ 840
2025 Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible senior notes	$ 708.8	$ 682.2

Acquisition - Narrative (Detail

Acquisition - Narrative (Details) - USD ($) $ in Thousands	Jan. 13, 2022	Mar. 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Business Acquisition [Line Items]
Business acquisition settled		$ 401,125		$ 7,891
Gain on foreign currency remeasurement of purchase consideration		4,628		0
Busuu Online S.L.
Business Acquisition [Line Items]
Ownership percent of stock acquired	100.00%
Acquisition related costs		500			$ 5,300
Fair value of purchase consideration	$ 417,000
Business acquisition settled	421,700
Gain on foreign currency remeasurement of purchase consideration	4,600
Potential additional payments, subject to performance-based contingencies	$ 25,500
Contingent consideration, liability		1,800	$ 1,800
Net revenues			9,600
Net loss			$ (8,000)
Pro forma revenue		202,900		208,600
Pro forma net income (loss)		$ 5,400		$ (74,100)

Acquisition - Schedule of Asset

Acquisition - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jan. 13, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill	$ 641,284		$ 289,763
Busuu Online S.L.
Business Acquisition [Line Items]
Cash and cash equivalents		$ 20,525
Accounts receivable		2,446
Right of use assets		2,715
Other acquired assets		3,710
Acquired intangible assets		71,600
Total identifiable assets acquired		100,996
Accounts payable		(5,174)
Accrued liabilities		(22,749)
Deferred revenue		(16,761)
Long term operating lease liabilities		(2,038)
Net identifiable assets acquired		54,274
Goodwill		367,376
Total fair value of purchase consideration		$ 421,650

Acquisition - Schedule of Intan

Acquisition - Schedule of Intangible Assets (Details) - Busuu Online S.L. $ in Thousands	Jan. 13, 2022USD ($)
Business Acquisition [Line Items]
Acquired intangible assets	$ 71,600
Weighted-Average Amortization Period (in months)	68 months
Trade name
Business Acquisition [Line Items]
Acquired intangible assets	$ 4,600
Weighted-Average Amortization Period (in months)	72 months
Customer lists
Business Acquisition [Line Items]
Acquired intangible assets	$ 18,000
Weighted-Average Amortization Period (in months)	24 months
Developed technology
Business Acquisition [Line Items]
Acquired intangible assets	$ 49,000
Weighted-Average Amortization Period (in months)	84 months

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 289,763
Additions due to acquisitions	367,376
Foreign currency translation adjustment	(15,855)
Ending balance	$ 641,284

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Finite-lived and Indefinite-lived Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period (in months)	67 months	65 months
Accumulated Amortization	$ (67,117)	$ (60,588)
Foreign Currency Translation Adjustment	(3,134)	0
Net Carrying Amount	99,085
Indefinite-lived trade name	3,600	3,600
Total intangible assets, net, gross carrying amount	172,936	101,154
Total intangible assets, net, Net carrying amount	$ 102,685	$ 40,566
Developed technologies
Finite Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period (in months)	80 months	76 months
Gross Carrying Amount	$ 106,703	$ 57,521
Accumulated Amortization	(34,921)	(31,790)
Foreign Currency Translation Adjustment	(2,165)	0
Net Carrying Amount	$ 69,617	$ 25,731
Content libraries
Finite Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period (in months)	60 months	60 months
Gross Carrying Amount	$ 12,230	$ 12,230
Accumulated Amortization	(7,447)	(6,836)
Foreign Currency Translation Adjustment	0	0
Net Carrying Amount	$ 4,783	$ 5,394
Customer lists
Finite Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period (in months)	35 months	47 months
Gross Carrying Amount	$ 34,190	$ 16,190
Accumulated Amortization	(14,756)	(12,432)
Foreign Currency Translation Adjustment	(772)	0
Net Carrying Amount	$ 18,662	$ 3,758
Trade and domain names
Finite Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period (in months)	52 months	44 months
Gross Carrying Amount	$ 16,213	$ 11,613
Accumulated Amortization	(9,993)	(9,530)
Foreign Currency Translation Adjustment	(197)	0
Net Carrying Amount	$ 6,023	$ 2,083

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Acquisition-Related Intangible Assets
Finite Lived Intangible Assets [Line Items]
Amortization expense of acquisition related to acquired intangible assets	$ 6.4	$ 4.4

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Details) $ in Thousands	Mar. 31, 2022USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remaining nine months of 2022	$ 20,402
2023	25,203
2024	13,858
2025	11,744
2026	11,396
Thereafter	16,482
Net Carrying Amount	$ 99,085

Convertible Senior Notes - Narr

Convertible Senior Notes - Narrative (Details) - Senior Notes $ / shares in Units, $ in Thousands	1 Months Ended			12 Months Ended
	Aug. 31, 2020USD ($)	Apr. 30, 2019USD ($)	Apr. 30, 2018day	Dec. 31, 2021USD ($)shares	Mar. 31, 2022USD ($)$ / shares	Mar. 31, 2019USD ($)
Sale Price Is Greater Or Equal 130%
Debt Instrument [Line Items]
Threshold trading days | day			20
Threshold consecutive trading days | day			30
Threshold percentage of stock price trigger			130.00%
Trading Price Per $1,000 Principal Amount Less Than 98%
Debt Instrument [Line Items]
Threshold trading days | day			5
Threshold consecutive trading days | day			10
Trading Price Per $1,000 Principal Amount Less Than 98% | Maximum
Debt Instrument [Line Items]
Threshold percentage of stock price trigger			98.00%
Fundamental Change Scenario
Debt Instrument [Line Items]
Threshold percentage of stock price trigger			100.00%
2026 Notes
Debt Instrument [Line Items]
Face value	$ 1,000,000			$ 1,000,000	$ 1,000,000
Interest rate, stated percentage	0.00%
Proceeds from issuance of debt	$ 1,000,000
Conversion ratio	0.0092978
Conversion price (in dollars per share) | $ / shares					$ 107.55
0% Convertible Senior Notes Due 2026, Additional Notes
Debt Instrument [Line Items]
Face value	$ 100,000
2025 Notes
Debt Instrument [Line Items]
Face value		$ 100,000		$ 699,982	$ 699,979	$ 700,000
Interest rate, stated percentage						0.125%
Proceeds from issuance of debt		$ 800,000
Conversion ratio		0.0193956
Conversion price (in dollars per share) | $ / shares					$ 51.56
2023 Notes
Debt Instrument [Line Items]
Issuance of common stock (in shares) | shares				2,983,011

Convertible Senior Notes - Long

Convertible Senior Notes - Long-term Debt Instruments (Details) - Senior Notes - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2020	Apr. 30, 2019
2026 Notes
Debt Instrument [Line Items]
Principal amount	$ 1,000,000
Less initial purchasers’ discount	(15,000)
Less other issuance costs	(904)
Net proceeds	$ 984,096
2025 Notes
Debt Instrument [Line Items]
Principal amount		$ 800,000
Less initial purchasers’ discount		(18,998)
Less other issuance costs		(822)
Net proceeds		$ 780,180

Convertible Senior Notes - Net

Convertible Senior Notes - Net Carrying Amount (Details) - Senior Notes - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Aug. 31, 2020	Apr. 30, 2019	Mar. 31, 2019
2026 Notes
Debt Instrument [Line Items]
Principal	$ 1,000,000	$ 1,000,000	$ 1,000,000
Unamortized issuance costs	(11,659)	(12,309)
2026 Notes | Carrying Amount | Fair Value, Measurements, Nonrecurring
Debt Instrument [Line Items]
Net carrying amount	988,341	987,691
2025 Notes
Debt Instrument [Line Items]
Principal	699,979	699,982		$ 100,000	$ 700,000
Unamortized issuance costs	(8,786)	(9,518)
2025 Notes | Carrying Amount | Fair Value, Measurements, Nonrecurring
Debt Instrument [Line Items]
Net carrying amount	$ 691,193	$ 690,464

Convertible Senior Notes - Inte

Convertible Senior Notes - Interest Expense Recognized (Details) - Senior Notes - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
2026 Notes
Debt Instrument [Line Items]
Contractual interest expense	$ 0	$ 0
Amortization of issuance costs	650	650
Total interest expense	650	650
2025 Notes
Debt Instrument [Line Items]
Contractual interest expense	215	237
Amortization of issuance costs	732	808
Total interest expense	947	1,045
2023 Notes
Debt Instrument [Line Items]
Contractual interest expense	0	66
Amortization of issuance costs	0	168
Total interest expense	$ 0	$ 234

Convertible Senior Notes - Capp

Convertible Senior Notes - Capped Call Transactions (Details) - Senior Notes - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended
	Aug. 31, 2020	Apr. 30, 2019	Mar. 31, 2022
2026 Notes
Debt Instrument [Line Items]
Proceeds from issuance of convertible senior notes, net of issuance costs	$ 984,096
Conversion price (in dollars per share)			$ 107.55
2025 Notes
Debt Instrument [Line Items]
Proceeds from issuance of convertible senior notes, net of issuance costs		$ 780,180
Conversion price (in dollars per share)			$ 51.56
Capped Call | 2026 Notes
Debt Instrument [Line Items]
Proceeds from issuance of convertible senior notes, net of issuance costs	$ 103,400
Debt instrument, convertible (in shares)			9,297,800
Conversion price (in dollars per share)			$ 156.44
Capped Call | 2025 Notes
Debt Instrument [Line Items]
Proceeds from issuance of convertible senior notes, net of issuance costs		$ 97,200
Debt instrument, convertible (in shares)			13,576,513
Conversion price (in dollars per share)			$ 79.32

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Thousands	Aug. 12, 2020claim	Jul. 01, 2020claim	May 12, 2020USD ($)claim	Jan. 26, 2022claim
Loss Contingencies [Line Items]
Loss contingency, number of arbitration demands remaining				4
2018 Data Incident, Arbitration Demands
Loss Contingencies [Line Items]
Loss contingency, number of arbitration demands filed	577
2018 Data Incident, Arbitration Demands | Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, number of arbitration demands filed		1,007	15,107
Loss contingency, damages sought, value | $			$ 25

Stockholders' Equity - Accelera

Stockholders' Equity - Accelerated Share Repurchase (Details) $ / shares in Units, $ in Thousands	Feb. 22, 2022USD ($)daytransactionshares	Dec. 03, 2021USD ($)	May 02, 2022shares	May 02, 2022$ / sharesshares	Mar. 31, 2022USD ($)shares	Mar. 31, 2021USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price | $					$ 300,450	$ 0
2022 ASR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of transactions | transaction	2
Purchase price | $	$ 300,000
Stock repurchased and retired during period, shares (in shares) | shares	8,562,255
Stock repurchased and retired during period, number of business days for delivery | day	3
Stock repurchased and retired during period, percentage	80.00%
2022 ASR | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased and retired during period, shares (in shares) | shares			837,001	9,399,256
Stock repurchased and retired during the period, weighted-average price (in dollars per share) | $ / shares				$ 31.9174
2021 ASR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price | $		$ 300,000
Stock repurchased and retired during period, shares (in shares) | shares					2,163,219

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 33,084	$ 23,100
Share-based compensation expense capitalized	1,800	500
Cost of revenues
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	623	362
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	11,776	7,959
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	4,386	2,919
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 16,299	$ 11,860

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative of Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense capitalized	$ 1.8	$ 0.5
RSUs and PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to restricted stock units	$ 296.1
Weighted average vesting period for recognition of compensation expense	2 years 6 months

Stockholders' Equity - Summary

Stockholders' Equity - Summary of RSU and PSU Activity (Details) - RSUs and PSUs	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Shares Outstanding
Beginning balance (in shares) | shares	8,171,462
Granted (in shares) | shares	2,472,933
Released (in shares) | shares	(642,952)
Forfeited (in shares) | shares	(598,243)
Ending balance (in shares) | shares	9,403,200
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 46.36
Granted (in dollars per share) | $ / shares	33.21
Released (in dollars per share) | $ / shares	68.70
Forfeited (in dollars per share) | $ / shares	44.26
Ending balance (in dollars per share) | $ / shares	$ 41.51

Subsequent Event (Details)

Subsequent Event (Details) - Subsequent Event $ in Millions	1 Months Ended
	Apr. 30, 2022USD ($)
Subsequent Event [Line Items]
Proceeds from sale	$ 14
Minimum
Subsequent Event [Line Items]
Rental term	2 months
Maximum
Subsequent Event [Line Items]
Rental term	5 months

Uncategorized Items - chgg-2022

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2020-06 [Member]