Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities
Net income (loss)	$ 42,881	$ (26,521)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	64,202	70,071
Stock-based compensation	175,260	165,837
Amortization of premium on marketable securities	61	157
Accretion of discount on marketable securities	(37,673)	(43,319)
Amortization of debt discount and issuance costs	1,689	1,755
Loss (gain) on sale and disposal of assets, net	2,372	(4,514)
Other	(6,504)	1,185
Changes in operating assets and liabilities, net effects of acquisition
Prepaid expenses and other assets	195	12,146
Operating lease right-of-use assets	11,253	13,124
Accounts payable	7,173	39,854
Insurance reserves	246,472	151,709
Accrued and other liabilities	139,140	75,047
Lease liabilities	(15,559)	(24,152)
Net cash provided by operating activities	630,962	432,379
Cash flows from investing activities
Purchases of marketable securities	(1,594,199)	(2,102,390)
Purchases of term deposits	0	(2,194)
Proceeds from sales of marketable securities	209,395	91,712
Proceeds from maturities of marketable securities	1,868,470	1,693,080
Proceeds from maturities of term deposits	2,194	3,539
Purchases of property and equipment and scooter fleet	(20,786)	(48,905)
Sales of property and equipment	31,188	46,888
Other investing activities	0	1,113
Net cash provided by (used in) investing activities	496,262	(317,157)
Cash flows from financing activities
Repayment of loans	(33,174)	(40,985)
Payment for settlement of convertible senior notes due 2025	(390,719)	(350,000)
Proceeds from issuance of convertible senior notes due 2029	0	460,000
Payment of debt issuance costs	0	(11,888)
Purchase of capped call	0	(47,886)
Repurchase of Class A common stock	(200,000)	(50,000)
Proceeds from exercise of stock options and other common stock issuances	7,304	6,403
Taxes paid related to net share settlement of equity awards	(61,495)	(8,898)
Principal payments on finance lease obligations	(20,933)	(23,629)
Other financing activities	(255)	0
Net cash used in financing activities	(699,272)	(66,883)
Effect of foreign exchange on cash, cash equivalents and restricted cash and cash equivalents	1,120	(501)
Net increase in cash, cash equivalents and restricted cash and cash equivalents	429,072	47,838
Beginning of period	946,040	771,786
End of period	1,375,112	819,624
Reconciliation of cash, cash equivalents and restricted cash and cash equivalents to the condensed consolidated balance sheets
Cash and cash equivalents	913,845	604,357
Restricted cash and cash equivalents	461,267	213,903
Restricted cash, included in prepaid expenses and other current assets	0	1,364
Total cash, cash equivalents and restricted cash and cash equivalents	1,375,112	819,624
Non-cash investing and financing activities
Financed vehicles acquired	21,962	84,418
Purchases of property and equipment and scooter fleet not yet settled	10,178	12,195
Right-of-use assets acquired under finance leases	3,655	32,775
Right-of-use assets acquired under operating leases	2,754	3,407
Remeasurement of finance and operating lease right of use assets	(2,593)	(7,600)
Repurchase of Class A common stock, including excise tax, accrued and not yet paid	$ 1,113	$ 0