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Fair Value - Summary of Changes in Financial Assets Valued Using Level 3 Inputs (Details) - Level 3 [Member] - Fair Value, Recurring [Member]
$ in Thousands
9 Months Ended
Sep. 30, 2022
USD ($)
MSR Assets [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Balance as of December 31, 2021 $ 16,469
Change in accounting method 4,484
Additions 5,412
Fair value adjustments 3,496
Balance as of March 31, 2022 29,861
Corporate Bonds [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Balance as of December 31, 2021 11,064
Transfers from Level 3 to Level 2 (5,684)
Additions 3,000
Fair value adjustments (335)
Balance as of March 31, 2022 8,045
Mortgage Backed Securities [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Balance as of December 31, 2021 7,916
Sales or paydowns (280)
Fair value adjustments (19)
Balance as of March 31, 2022 $ 7,617