Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net income (loss)	$ (484,276)	$ (90,824)	$ (158,550)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	15,643	13,702	8,000
Non-cash operating lease cost	4,110	11,359	10,464
Amortization of premium (accretion of discount) on marketable securities, net	(43,400)	(27,442)	(3,264)
Stock-based compensation expense	801,646	47,598	55,310
Other adjustments	(4,187)	484	4,099
Changes in operating assets and liabilities:
Accounts receivable	(104,280)	(53,318)	(30,230)
Prepaid expenses and other assets	(19,485)	3,878	(1,911)
Operating lease right-of-use assets and liabilities	(2,397)	(5,758)	(10,325)
Accounts payable	(570)	12,470	10,905
Accrued expenses and other liabilities	59,264	12,737	21,481
Net cash provided by (used in) operating activities	222,068	(75,114)	(94,021)
Cash flows from investing activities
Purchases of property and equipment	(6,248)	(9,724)	(6,233)
Proceeds from sale of cryptocurrency	6,869	0	0
Purchases of marketable securities	(1,996,725)	(1,259,854)	(1,430,589)
Maturities of marketable securities	1,573,602	1,273,159	674,399
Proceeds from sale of marketable securities	0	37,538	500
Cash paid for acquisitions, net of cash acquired	(17,137)	0	(42,196)
Other investing activities	(1,048)	172	(64)
Net cash provided by (used in) investing activities	(440,687)	41,291	(804,183)
Cash flows from financing activities
Proceeds from issuance of Class A common stock in initial public offering, net of underwriting discounts and commissions	600,022	0	0
Proceeds from exercise of employee stock options	88,972	8,428	7,034
Taxes paid related to net share settlement of restricted stock units	(294,573)	(4,320)	0
Payments of initial public offering costs	(8,775)	(1,441)	(9,796)
Payments of deferred consideration and holdbacks for acquisitions	(6,111)	(3,478)	0
Other financing activities	0	0	(1,022)
Net cash provided by (used in) financing activities	379,535	(811)	(3,784)
Net increase (decrease) in cash, cash equivalents, and restricted cash	160,916	(34,634)	(901,988)
Cash, cash equivalents, and restricted cash at the beginning of the period	401,226	435,860	1,337,848
Cash, cash equivalents, and restricted cash at the end of the period	562,142	401,226	435,860
Cash and cash equivalents	562,092	401,176	435,810
Restricted cash	50	50	50
Total cash, cash equivalents, and restricted cash	562,142	401,226	435,860
Supplemental disclosure of noncash financing and investing activities
Conversion of convertible preferred stock to common stock upon initial public offering	1,853,492	0	0
Reclassification of deferred offering costs to additional paid-in capital upon initial public offering	$ 23,754	$ 0	$ 0