Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended	48 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2024	Dec. 31, 2029
Other Commitments [Line Items]
Letters of credit outstanding, amount		$ 63.0	$ 47.3
Required cash and cash equivalents balance		$ 35.0
Forecast
Other Commitments [Line Items]
Purchase commitment	$ 354.8			$ 1,300.0
Letter of Credit | Minimum
Other Commitments [Line Items]
Letter of credit, fee percentage		0.50%	0.50%
Letter of Credit | Maximum
Other Commitments [Line Items]
Letter of credit, fee percentage		3.75%	3.25%