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Borrowed Funds - Schedule of Long-Term Borrowings (Details) - Long-term borrowings - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
FHLB advances, net $ 1,438,361 $ 788,419
Subordinated debt, net 759,295 754,639
Total long-term borrowings 2,197,656 1,543,058
Unamortized prepayment penalties and other purchase accounting adjustments 361 419
Deferred issuance costs $ 6,500 $ 6,900