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Summary of Significant Accounting Policies - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Product Information [Line Items]      
Total revenue presented in accordance with Article 5 $ 677,634 $ 548,631 $ 464,273
Net investment income 38,648 39,249 26,904
Total revenue $ 1,456,389 1,241,510 1,027,117
Revision of Prior Period, Reclassification, Adjustment      
Product Information [Line Items]      
Total revenue presented in accordance with Article 5   1,200,038 1,000,213
Net investment income   39,249 26,904
Net investment gains   2,223 0
Total revenue   $ 1,241,510 $ 1,027,117