Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue	$ 5,931,447	$ 5,361,398	$ 4,606,115
Costs and expenses:
Cost of revenue	2,669,575	2,474,237	2,114,117
Research and development	1,793,601	1,691,683	1,910,862
Sales and marketing	1,021,305	1,063,675	1,122,092
General and administrative	979,133	919,097	857,423
Total costs and expenses	6,463,614	6,148,692	6,004,494
Operating loss	(532,167)	(787,294)	(1,398,379)
Interest income	134,159	153,466	168,394
Interest expense	(121,998)	(21,552)	(22,024)
Other income (expense), net	68,870	(16,846)	(42,414)
Loss before income taxes	(451,136)	(672,226)	(1,294,423)
Income tax benefit (expense)	(9,353)	(25,630)	(28,062)
Net loss	$ (460,489)	$ (697,856)	$ (1,322,485)
Net loss per share attributable to Class A, Class B, and Class C common stockholders (Note 3):
Basic (in usd per share)	$ (0.27)	$ (0.42)	$ (0.82)
Diluted (in usd per share)	$ (0.27)	$ (0.42)	$ (0.82)
Weighted average shares used in computation of net loss per share:
Basic (in shares)	1,694,598	1,659,147	1,612,504
Diluted (in shares)	1,694,598	1,659,147	1,612,504

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities
Net loss	$ (460,489)	$ (697,856)	$ (1,322,485)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	163,633	158,074	168,441
Stock-based compensation	1,016,825	1,041,023	1,324,004
Amortization of debt issuance costs and debt discount (premium)	6,880	9,388	7,361
Losses (gains) on debt and equity securities, net	16,940	8,460	33,027
(Gain) loss on extinguishment of debt	(96,734)	6,672	0
Other	26,119	(20,825)	(26,958)
Change in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net of allowance	(31,827)	(94,005)	(98,127)
Prepaid expenses and other current assets	(66,744)	(36,544)	(9,920)
Operating lease right-of-use assets	57,214	54,127	70,674
Other assets	7,705	(9,952)	2,238
Accounts payable	45,918	(100,728)	94,988
Accrued expenses and other current liabilities	12,814	150,391	62,130
Operating lease liabilities	(34,429)	(62,663)	(68,007)
Other liabilities	(7,655)	7,918	9,155
Net cash provided by (used in) operating activities	656,170	413,480	246,521
Cash flows from investing activities
Purchases of property and equipment	(218,981)	(194,826)	(211,727)
Purchases of strategic investments	(22,500)	(2,000)	(7,770)
Sales of strategic investments	11,050	1,755	7,559
Cash paid for acquisitions, net of cash acquired	(35,499)	0	(50,254)
Purchases of marketable securities	(1,275,796)	(2,287,668)	(2,048,273)
Sales of marketable securities	741,266	354,311	459,481
Maturities of marketable securities	977,159	1,411,444	2,424,717
Other	(3,581)	(100)	(2,779)
Net cash provided by (used in) investing activities	173,118	(717,084)	570,954
Cash flows from financing activities
Proceeds from issuance of notes, net of issuance costs	2,014,193	740,350	0
Purchase of capped calls	0	(68,850)	0
Proceeds from termination of capped calls	0	62,683	0
Proceeds from the exercise of stock options	374	12,798	1,038
Repurchases of Class A non-voting common stock	(750,866)	(311,069)	(189,394)
Deferred payments for acquisitions	(72,539)	(3,695)	(270,433)
Repurchases of convertible notes	(1,994,550)	(859,042)	0
Repayment of convertible notes	(36,240)	0	0
Other	(8,497)	(1,799)	0
Net cash provided by (used in) financing activities	(848,125)	(428,624)	(458,789)
Change in cash, cash equivalents, and restricted cash	(18,837)	(732,228)	358,686
Cash, cash equivalents, and restricted cash, beginning of period	1,050,234	1,782,462	1,423,776
Cash, cash equivalents, and restricted cash, end of period	1,031,397	1,050,234	1,782,462
Supplemental disclosures
Cash paid for income taxes, net	26,716	24,686	30,924
Cash paid for interest	$ 65,060	$ 10,284	$ 10,244

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 1,030,435	$ 1,046,534
Marketable securities	1,910,137	2,329,745
Accounts receivable, net of allowance	1,372,237	1,348,472
Prepaid expenses and other current assets	272,065	182,006
Total current assets	4,584,874	4,906,757
Property and equipment, net	578,075	489,088
Operating lease right-of-use assets	506,216	530,441
Intangible assets, net	66,613	86,363
Goodwill	1,720,769	1,689,785
Other assets	221,255	233,914
Total assets	7,677,802	7,936,348
Current liabilities
Accounts payable	219,793	173,197
Operating lease liabilities	48,479	24,885
Accrued expenses and other current liabilities	971,627	1,009,254
Short-term debt, net	46,969	36,212
Total current liabilities	1,286,868	1,243,548
Long-term debt, net	3,489,860	3,607,717
Operating lease liabilities, noncurrent	557,823	575,082
Other liabilities	61,756	59,240
Total liabilities	5,396,307	5,485,587
Commitments and contingencies (Note 8)
Equity, Attributable to Parent [Abstract]
Treasury stock, at cost. 44,670 and 47,222 shares of Class A non-voting common stock as of December 31, 2025 and December 31, 2024, respectively.	(435,722)	(460,620)
Additional paid-in capital	16,637,324	15,644,132
Accumulated deficit	(13,946,816)	(12,735,461)
Accumulated other comprehensive income (loss)	26,692	2,694
Total stockholders’ equity	2,281,495	2,450,761
Total liabilities and stockholders’ equity	7,677,802	7,936,348
Class A Non-voting Common Stock
Equity, Attributable to Parent [Abstract]
Common stock, value	15	14
Class B Voting Common Stock
Equity, Attributable to Parent [Abstract]
Common stock, value	0	0
Class C Voting Common Stock
Equity, Attributable to Parent [Abstract]
Common stock, value	$ 2	$ 2