Supplemental Information (Uzbekistan Asset Purchase) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
May 25, 2023 |
Mar. 31, 2024 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Sep. 30, 2023 |
|
| Asset Acquisition [Line Items] | |||||
| Financing receivables | $ 1,209.6 | $ 1,209.6 | $ 817.2 | ||
| Financing receivables progress payments | 392.4 | $ 0.0 | |||
| Natural Gas-To-Syngas Processing Facility | |||||
| Asset Acquisition [Line Items] | |||||
| Price of acquisition | $ 1,000.0 | ||||
| Term of project agreement (in years) | 15 years | ||||
| Financing receivables | 910.0 | $ 910.0 | |||
| Financing receivables progress payments | $ 100.0 | ||||