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Fair Value Measurements - Unconsolidated Investments Holding a Variable Interest (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Maximum loss exposure | $ 2,802,251 | $ 2,064,878
Carrying amount |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Maximum loss exposure | 1,251,799 | 916,248
Unfunded Commitments |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Maximum loss exposure | $ 1,550,452 | $ 1,148,630

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