Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities
Net loss	$ (284,755)	$ (235,070)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	23,543	16,849
Stock-based compensation	50,904	37,417
Asset impairment	108	1,188
Lease expense	11,155	6,014
Other, net	(650)	(1,114)
Changes in operating assets and liabilities:
Other receivables and assets	(1,243)	(1,334)
Unearned revenue	(22,374)	(33,360)
Accounts payable	(1,687)	(670)
Accrued development expense	(2,623)	391
Accrued expenses and other current liabilities	(5,001)	3,936
Lease liabilities	(11,121)	(7,950)
Net cash used in operating activities	(243,744)	(213,703)
Cash flows from investing activities
Net cash and restricted cash acquired in the acquisition of a business	0	1,915
Purchases of property and equipment	(12,397)	(9,888)
Purchase of an intangible asset	(3,000)	(247)
Sales and maturities of investments	0	480
Net cash used in investing activities	(15,397)	(7,740)
Cash flows from financing activities
Proceeds from issuance of common shares, net of issuance costs	289,387	50,000
Proceeds from equity incentive plans	6,433	9,546
Repayment of long-term debt and finance lease liabilities	(2,339)	(72)
Net cash provided by financing activities	293,481	59,474
Effect of exchange rate changes on cash, cash equivalents and restricted cash	66	64
Net change in cash, cash equivalents and restricted cash	34,406	(161,905)
Cash, cash equivalents and restricted cash, beginning of period	401,425	559,112
Cash, cash equivalents and restricted cash, end of period	435,831	397,207
Supplemental schedule of non-cash investing and financing activities
Issuance of shares for the acquisitions of businesses	0	91,025
Accrued property and equipment	236	0
Financed equipment purchase	0	1,214
Purchase of an intangible asset	$ 6,000	$ 0