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Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2025
Debt Instrument
Amortization of debt discount and issuance costs related to the 2025 Notes, 2029 Notes and 2030 Notes	$ 1,165	$ 927
Interest expense	5,225	6,150
Vehicle loans and other interest expense
Debt Instrument
Vehicle loans and other interest expense	3,341	3,039
Convertible Debt
Debt Instrument
Contractual interest expense related to the 2025 Notes and 2029 Notes	719	2,184
Amortization of debt discount and issuance costs related to the 2025 Notes, 2029 Notes and 2030 Notes	$ 1,165	$ 927
Convertible Debt | Convertible senior notes due 2030 (the “2030 Notes”)
Debt Instrument
Interest rate (as a percent)	0.00%		0.00%

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