Investments - Schedule of Net Investment Earnings (Loss) (Details) - NGP Management - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Schedule of Equity Method Investments [Line Items] | ||||
| Management fee related revenues from NGP Management | $ 13.4 | $ 15.0 | $ 42.0 | $ 46.5 |
| Expenses related to the investment in NGP Management | (2.8) | (3.6) | (8.4) | (10.8) |
| Amortization of basis differences and impairment of investment in NGP Management | (8.3) | (8.7) | (25.5) | (110.0) |
| Net investment income (loss) from NGP Management | $ 2.3 | $ 2.7 | $ 8.1 | $ (74.3) |
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- Definition Management Fees, Income (Loss) No definition available.
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- Definition Net Realized Investment Gains Losses No definition available.
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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses related to the generation of investment income. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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