Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net loss	$ (100,783)	$ (105,956)	$ (189,694)
Adjustments to reconcile net loss to net cash provided by operating activities
Stock-based compensation	238,425	186,880	174,835
Depreciation and amortization	110,576	89,753	71,633
Accretion of discounts on marketable debt securities, net	(7,882)	(12,830)	(9,790)
Abandonment of long-lived assets	3,540	1,428	1,488
Noncash operating lease expense	5,839	11,102	13,092
Unrealized foreign currency (gain) loss, net	(1,862)	2,304	(524)
Deferred income taxes	(6,820)	(881)	(769)
(Benefit from) provision for credit losses	(514)	591	8,052
(Increase) decrease in fair value of strategic investments	(124)	(454)	287
Changes in operating assets and liabilities, net of effect of asset acquisitions and business combinations
Accounts receivable	(39,817)	(39,501)	(57,492)
Deferred contract cost assets	(51,965)	(8,993)	(9,306)
Prepaid expenses and other assets	(5,698)	(3,318)	(6,368)
Accounts payable	(8,173)	19,729	(938)
Accrued expenses and other liabilities	64,380	(15,501)	4,759
Deferred revenue	100,099	79,091	106,590
Operating lease liabilities	1,049	(7,272)	(13,840)
Net cash provided by operating activities	300,270	196,172	92,015
Investing activities
Purchases of property and equipment	(18,100)	(19,143)	(10,325)
Capitalized software development costs	(65,663)	(49,529)	(34,685)
Purchases of strategic investments	(2,151)	(2,367)	(764)
Purchases of marketable securities	(351,465)	(491,475)	(402,424)
Maturities of marketable securities	409,230	440,537	372,240
Sales of marketable securities	2,698	0	5,452
Originations of materials financing	0	0	(23,972)
Customer repayments of materials financing	0	1,605	26,242
Acquisition of businesses, net of cash acquired	(41,515)	(25,945)	0
Asset acquisitions, net of cash acquired	(3,533)	(3,792)	(7,825)
Net cash used in investing activities	(70,499)	(150,109)	(76,061)
Financing activities
Proceeds from stock option exercises	11,809	15,737	17,618
Proceeds from employee stock purchase plan	26,332	24,069	25,400
Repurchases of common stock	(128,838)	0	0
Payment of tax withholding for net share settlement	(94,120)	0	0
Payment of deferred business combination consideration	0	(1,470)	0
Payment of deferred asset acquisition consideration	(1,400)	(81)	0
Principal payments under finance lease agreements, net of proceeds from lease incentives	(1,636)	(2,019)	(1,853)
Net increase in funds held for customers	8,951	0	0
Net cash (used in) provided by financing activities	(178,902)	36,236	41,165
Net increase in cash, cash equivalents and restricted cash	50,869	82,299	57,119
Effect of exchange rate changes on cash	1,655	(2,367)	855
Cash, cash equivalents and restricted cash, beginning of period	437,722	357,790	299,816
Cash, cash equivalents and restricted cash, end of period	490,246	437,722	357,790
Reconciliation of cash, cash equivalents and restricted cash to the consolidated balance sheets
Cash and cash equivalents at end of period	480,684	437,722	357,790
Restricted cash included in prepaid expenses and other current assets at end of period	611	0	0
Restricted cash for funds held for customers included in prepaid expenses and other current assets at end of period	8,951	0	0
Total cash, cash equivalents and restricted cash at end of period shown in the consolidated statements of cash flows	490,246	437,722	357,790
Supplemental disclosure of cash flow information
Cash paid for interest other than finance leases	39	25	4
Stock-based compensation capitalized for cloud-computing arrangement costs	233	104	296
Cash received for lease incentives	10,523	2,620	789
Operating cash flows from finance leases	1,112	1,874	1,953
Operating cash flows from operating leases	12,058	11,871	15,971
Financing cash flows from finance leases	1,636	2,221	2,054
Noncash investing and financing activities
Purchases of property and equipment included in accounts payable and accrued expenses at year end	2,596	1,638	754
Capitalized software development costs included in accounts payable and accrued expenses at year end	2,968	3,775	1,905
Deferred asset acquisition payment included in other current liabilities and other non-current liabilities at year end	600	1,400	1,405
Stock-based compensation capitalized for software development	19,398	13,235	9,421
Conversion of available-for-sale debt securities into equity securities	0	350	0
Right of use assets obtained in exchange for financing lease liabilities	(10,305)	0	0
Right of use assets obtained in exchange for operating lease liabilities	12,954	(3,875)	15,385
Noncash net change due to operating lease remeasurement	$ 0	$ (89)	$ (115)