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Borrowings and Borrowing Capacity - Summary of Customer Repurchase Agreements are Secured by Pledged Securities with Carrying Amount (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Pledged Securities $ 72,805 $ 73,056
Customer Repurchase Agreements    
Debt Instrument [Line Items]    
Pledged Securities 14,970 4,987
Asset-backed securities | Customer Repurchase Agreements    
Debt Instrument [Line Items]    
Pledged Securities 4,999 4,987
CLO securities | Customer Repurchase Agreements    
Debt Instrument [Line Items]    
Pledged Securities $ 9,971 $ 0