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Fair Value Measurements - Schedule of Reconciliation for Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023
Investment in Unconsolidated Subsidiaries |  |
Investment in Unconsolidated Subsidiaries |  |
Beginning balance | $ 452,887 | $ 460,540
Transfer in (out) | 0 |
Transfer in (out) |  | (230)
Net change in fair value | (6,596) | (14,019)
Purchases / Additions | 0 | 0
Ending balance | 446,291 | 446,291
Other assets |  |
Other assets |  |
Beginning balance | 23,535 | 14,452
Transfer in (out) | 0 |
Transfer in (out) |  | 0
Net change in fair value | 900 | 4,400
Purchases / Additions | 778 | 6,361
Ending balance | $ 25,213 | $ 25,213

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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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