CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
OPERATING ACTIVITIES:
Net income	$ 140,807	$ 116,689
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	50,689	42,624
Stock-based compensation	257,138	236,960
Noncash lease expense	34,253	26,460
Provision for expected credit losses on accounts receivable	1,177	133
Other	(13,899)	(4,117)
Changes in operating assets and liabilities:
Accounts receivable	80,033	(49,321)
Prepaid expenses and other current and non-current assets	(18,281)	(52,064)
Accounts payable	(19,839)	(13,247)
Accrued expenses and other current and non-current liabilities	(24,081)	(9,989)
Operating lease liabilities	(31,551)	(27,397)
Net cash provided by operating activities	456,446	266,731
INVESTING ACTIVITIES:
Purchases of investments	(577,834)	(317,969)
Maturities of investments	346,120	314,598
Purchases of property and equipment	(104,352)	(29,339)
Capitalized software development costs	(5,739)	(4,424)
Business acquisition	(4,350)	0
Net cash used in investing activities	(346,155)	(37,134)
FINANCING ACTIVITIES:
Repurchases of Class A common stock	(647,093)	(125,280)
Proceeds from exercise of stock options	14,085	38,164
Proceeds from employee stock purchase plan	32,450	30,122
Taxes paid relating to net settlement of restricted stock awards	(57,048)	(58,369)
Proceeds from short-term borrowings	74,239	0
Net cash used in financing activities	(583,367)	(115,363)
Increase (decrease) in cash and cash equivalents	(473,076)	114,234
Cash and cash equivalents—Beginning of period	1,369,463	895,129
Cash and cash equivalents—End of period	896,387	1,009,363
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for operating lease liabilities	35,942	33,272
Operating lease assets obtained in exchange for operating lease liabilities	41,594	58,133
Capitalized assets financed by accounts payable	57,562	37,927
Repurchases of Class A common stock in accrued expenses and other current liabilities	12,218	0
Assets acquired in a business combination, included in other assets, non-current, in exchange for Class A common stock	10,299	0
Tenant improvements paid by lessor	8,579	0
Stock-based compensation included in capitalized software development costs	$ 3,634	$ 2,901