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Fair Value Measurements - Recurring Basis - Investment in ECOTEC - Unobservable inputs (Details) - ECOTEC $ in Millions | Jun. 30, 2024 USD ($) | Jun. 30, 2023
--- | --- | ---
Fair value measurement of assets and liabilities |  |
Ownership interest (as a percent) | 25.00% |
Level 3 |  |
Fair value measurement of assets and liabilities |  |
Investment | $ 14.9 |
Equity investment | Discounted cash flow | WACC | Minimum |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input | 0.004 | 0.000
Equity investment | Discounted cash flow | WACC | Maximum |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input | 0.200 | 0.174
Equity investment | Discounted cash flow | WACC | Median |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input |  | 0.100
Equity investment | Guideline public company | Revenue multiple | Minimum |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input | 1.5 | 1.6
Equity investment | Guideline public company | Revenue multiple | Maximum |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input | 7.2 | 10.0
Equity investment | Guideline public company | Revenue multiple | Median |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input | 3.8 | 4.0
Equity investment | Level 3 | Discounted cash flow | WACC |  |
Significant unobservable inputs |  |
Equity Securities, FV-NI, Measurement Input | 0.135 |

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