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Debt - Schedule of Outstanding Debt Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024	Feb. 27, 2024	May 15, 2020
Debt Instrument
Long-Term Debt, Total	$ 1,053,011		$ 995,047
Less: Convertible senior notes, current	0		390,175
Less: Long-term debt, current	50,607		38,904
Total long-term debt	$ 1,002,404		565,968
Convertible senior notes due 2025 (the “2025 Notes”) \| Convertible Debt
Debt Instrument
Interest rate (as a percent)	0.00%				1.50%
Long-Term Debt, Total	$ 0		390,175
Convertible senior notes due 2029 (the “2029 Notes”) \| Convertible Debt
Debt Instrument
Interest rate (as a percent)	0.625%			0.625%
Long-Term Debt, Total	$ 452,421		450,081
Convertible senior notes due 2030 (the “2030 Notes”) \| Convertible Debt
Debt Instrument
Interest rate (as a percent)	0.00%	0.00%
Long-Term Debt, Total	$ 488,542		0
Non-revolving Loan
Debt Instrument
Long-Term Debt, Total	$ 16		510
Non-revolving Loan \| Convertible Debt
Debt Instrument
Interest rate (as a percent)	7.61%
Master Vehicle Loan
Debt Instrument
Long-Term Debt, Total	$ 112,032		$ 154,281
Master Vehicle Loan \| Minimum
Debt Instrument
Interest rate (as a percent)	5.85%
Master Vehicle Loan \| Maximum
Debt Instrument
Interest rate (as a percent)	7.10%