Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating activities
Net loss	$ (189,694)	$ (286,931)	$ (265,165)
Adjustments to reconcile net loss to net cash provided by operating activities
Stock-based compensation	174,835	162,886	227,161
Depreciation and amortization	71,633	63,039	36,376
Accretion of discounts on marketable debt securities, net	(9,790)	(2,009)	0
Abandonment of long-lived assets	1,488	1,344	554
Noncash operating lease expense	13,092	10,170	7,569
Unrealized foreign currency (gain) loss, net	(524)	(351)	685
Deferred income taxes	(769)	(283)	(24,493)
Provision for credit losses	8,052	2,584	129
Decrease (increase) in fair value of strategic investments	287	483	(32)
Changes in operating assets and liabilities, net of effect of asset acquisitions and business combinations
Accounts receivable	(57,492)	(35,817)	(34,184)
Deferred contract cost assets	(9,306)	(21,974)	(10,157)
Prepaid expenses and other assets	(6,368)	(3,754)	(16,811)
Accounts payable	(938)	459	3,954
Accrued expenses and other liabilities	4,759	34,623	38,176
Deferred revenue	106,590	97,029	78,671
Operating lease liabilities	(13,840)	(8,890)	(5,703)
Net cash provided by operating activities	92,015	12,608	36,730
Investing activities
Purchases of property and equipment	(10,325)	(15,782)	(12,383)
Capitalized software development costs	(34,685)	(33,648)	(15,248)
Purchases of strategic investments	(764)	(3,959)	(4,300)
Purchases of marketable securities	(402,424)	(369,206)	0
Maturities of marketable securities	372,240	85,632	0
Sales of marketable securities	5,452	0	0
Originations of materials financing	(23,972)	(23,489)	0
Customer repayments of materials financing	26,242	18,685	0
Asset acquisitions, net of cash acquired	(7,825)	0	0
Acquisition of businesses, net of cash acquired	0	0	(509,837)
Settlement of post-close working capital adjustments from business combinations	0	1,291	0
Net cash used in investing activities	(76,061)	(340,476)	(541,768)
Financing activities
Proceeds from initial public offering	0	0	665,129
Proceeds from stock option exercises	17,618	22,364	43,086
Proceeds from employee stock purchase plan	25,400	22,133	9,475
Payments of deferred offering costs	0	(270)	(3,880)
Payments of deferred business acquisition consideration	0	(3,870)	(475)
Principal payments under finance lease agreements, net of proceeds from lease incentives	(1,853)	(1,705)	(1,509)
Net cash provided by financing activities	41,165	38,652	711,826
Net increase (decrease) in cash, cash equivalents and restricted cash	57,119	(289,216)	206,788
Effect of exchange rate changes on cash	855	(180)	(829)
Cash, cash equivalents and restricted cash, beginning of period	299,816	589,212	383,253
Cash, cash equivalents and restricted cash, end of period	357,790	299,816	589,212
Reconciliation of cash, cash equivalents and restricted cash to the consolidated balance sheets
Cash and cash equivalents	357,790	296,712	586,108
Restricted cash, non-current at end of period included in other assets	0	3,104	3,104
Total cash, cash equivalents and restricted cash at end of period shown in the consolidated statements of cash flows	357,790	299,816	589,212
Supplemental disclosure of cash flow information
Cash paid for interest other than finance leases	4	94	186
Cash paid for income taxes, net of refunds received	859	700	419
Stock-based compensation capitalized for cloud-computing arrangement costs	296	256	346
Cash received for lease incentives	789	2,024	1,490
Operating cash flows from finance leases	1,953	2,017	2,076
Operating cash flows from operating leases	15,971	12,092	8,346
Financing cash flows from finance leases	2,054	1,906	1,710
Noncash investing and financing activities
Purchases of property and equipment included in accounts payable and accrued expenses at year end	754	1,472	2,758
Capitalized software development costs included in accounts payable and accrued expenses at year end	1,905	1,645	1,287
Deferred offering costs included in accounts payable and accrued expenses at year end	0	0	270
Indemnity holdback consideration associated with business combinations included in other current liabilities at year end	0	0	4,050
Deferred asset acquisition payment included in other non-current liabilities at year end	1,405	0	0
Issuance of common stock as consideration in business combinations	0	0	58,028
Stock-based compensation capitalized for software development	9,421	8,562	4,901
Conversion of available-for-sale debt securities into equity securities	0	3,680	0
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	0	0	728,375
Right of use assets obtained in exchange for operating lease liabilities	15,385	10,198	1,857
Noncash net change due to operating lease remeasurement	$ (115)	$ (1,642)	$ 9