Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating activities
Net loss	$ (43,665)	$ (160,175)
Adjustments to reconcile net loss to net cash provided by operating activities
Stock-based compensation	137,532	132,234
Depreciation and amortization	65,127	51,943
Accretion of discounts on marketable debt securities, net	(10,131)	(6,615)
Abandonment of long-lived assets	818	812
Noncash operating lease expense	7,906	7,932
Unrealized foreign currency loss, net	295	739
Deferred income taxes	4	7
Provision for credit losses	648	6,882
(Increase) decrease in fair value of strategic investments	(457)	155
Changes in operating assets and liabilities, net of effect of asset acquisitions and business combinations
Accounts receivable	34,296	3,144
Deferred contract cost assets	(3,217)	(5,099)
Prepaid expenses and other assets	(12,121)	(1,878)
Accounts payable	11,029	2,258
Accrued expenses and other liabilities	(8,475)	(1,975)
Deferred revenue	(6,268)	29,080
Operating lease liabilities	(6,205)	(8,172)
Net cash provided by operating activities	167,116	51,272
Investing activities
Purchases of property and equipment	(7,510)	(8,073)
Capitalized software development costs	(32,453)	(25,187)
Purchases of strategic investments	(1,917)	(526)
Purchases of marketable securities	(410,619)	(309,282)
Maturities of marketable securities	371,718	287,620
Sales of marketable securities	0	5,452
Originations of materials financing	0	(23,585)
Customer repayments of materials financing	1,571	21,053
Acquisition of a business, net of cash acquired	(25,945)	0
Asset acquisitions, net of cash acquired	(3,792)	(6,011)
Net cash used in investing activities	(108,947)	(58,539)
Financing activities
Proceeds from stock option exercises	12,371	15,094
Proceeds from employee stock purchase plan	13,187	13,006
Payment of deferred business combination consideration	(1,470)	0
Payment of deferred asset acquisition consideration	(81)	0
Principal payments under finance lease agreements, net of proceeds from lease incentives	(1,569)	(1,450)
Net cash provided by financing activities	22,438	26,650
Net increase in cash and cash equivalents	80,607	19,383
Effect of exchange rate changes on cash	901	(881)
Cash and cash equivalents, beginning of period	357,790	299,816
Cash and cash equivalents, end of period	439,298	318,318
Supplemental disclosure of cash flow information
Cash paid for interest other than finance leases	25	4
Cash paid for income taxes, net of refunds received	2,099	682
Stock-based compensation capitalized for cloud-computing arrangement costs	95	246
Cash received for lease incentives	394	537
Operating cash flows from finance leases	1,414	1,473
Operating cash flows from operating leases	8,142	9,710
Financing cash flows from finance leases	1,652	1,536
Noncash investing and financing activities:
Purchases of property and equipment included in accounts payable and accrued expenses at period end	2,099	792
Capitalized software development costs included in accounts payable and accrued expenses at period end	3,907	1,693
Stock-based compensation capitalized for software development	9,458	6,743
Deferred asset acquisition payment included in other current liabilities and accrued expenses at period end	1,400	370
Right of use assets obtained or modified in exchange for operating lease liabilities	$ (3,599)	$ 13,638