Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended		48 Months Ended
	Sep. 30, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2029
Other Commitments [Line Items]
Unused letters of credit outstanding		$ 23.0	$ 47.3
Required cash and cash equivalents balance		$ 35.0
Forecast
Other Commitments [Line Items]
Purchase commitment	$ 317.6			$ 1,700.0
Minimum | Letter of Credit
Other Commitments [Line Items]
Unused letters of credit outstanding, carry fees (as percent)		0.50%	0.50%
Maximum | Letter of Credit
Other Commitments [Line Items]
Unused letters of credit outstanding, carry fees (as percent)		3.75%	3.25%