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Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Loss Contingencies [Line Items]    
Valuation allowances and reserves, balance $ 1.2 $ 2.7
Residential Mortgage    
Loss Contingencies [Line Items]    
Valuation allowances and reserves, balance $ 1.3 $ 1.8