Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 562,092	$ 401,176
Marketable securities	1,278,717	811,946
Accounts receivable, net	349,534	245,279
Prepaid expenses and other current assets	33,058	21,286
Total current assets	2,223,401	1,479,687
Property and equipment, net	12,652	14,946
Operating lease right-of-use assets, net	23,249	24,008
Intangible assets, net	25,424	32,147
Goodwill	42,174	26,299
Other noncurrent assets	9,695	19,380
Total assets	2,336,595	1,596,467
Current liabilities:
Accounts payable	45,423	46,514
Operating lease liabilities	6,137	3,707
Accrued expenses and other current liabilities	124,464	83,349
Total current liabilities	176,024	133,570
Operating lease liabilities, noncurrent	20,565	22,040
Other noncurrent liabilities	9,257	287
Total liabilities	205,846	155,897
Commitments and contingencies (Note 11)
Convertible preferred stock, par value $0.0001 per share; no and 86,864,781 shares authorized as of December 31, 2024 and 2023, respectively; no and 73,021,449 shares issued and outstanding as of December 31, 2024 and 2023, respectively; aggregate liquidation preference of $0 and $1,847,993 as of December 31, 2024 and 2023, respectively		1,853,492
Equity [Abstract]
Preferred stock, par value $0.0001 per share; 100,000,000 and no shares authorized as of December 31, 2024 and 2023, respectively; no shares issued and outstanding as of December 31, 2024 and 2023	0	0
Additional paid-in capital	3,331,546	302,820
Accumulated other comprehensive income (loss)	24	814
Accumulated deficit	(1,200,838)	(716,562)
Total stockholders’ equity (deficit)	2,130,749	(412,922)
Total liabilities, convertible preferred stock, and stockholders’ equity (deficit)	2,336,595	1,596,467
Class A
Equity [Abstract]
Common stock	12	0
Class B
Equity [Abstract]
Common stock	5	6
Class C common stock
Equity [Abstract]
Common stock	$ 0	$ 0