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Borrowings - Schedule of Senior and Subordinated Debts (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Senior debt and subordinated debt $ 539,634 $ 620,406
Subordinated debt    
Debt Instrument [Line Items]    
Senior debt and subordinated debt 543,601 608,519
Junior subordinated deferrable interest debentures    
Debt Instrument [Line Items]    
Senior debt and subordinated debt 0 16,496
Unamortized discounts and issuance costs    
Debt Instrument [Line Items]    
Senior debt and subordinated debt $ 3,967 $ 4,609