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Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Less than One Year $ 685,605 $ 676,163
One-Three Years 627,374 437,592
Three-Five Years 300,863 163,520
Greater than Five Years 56,525 107,137
Off-balance sheet financial instrument 1,670,367 1,384,412
Commitments to extend credit    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Less than One Year 643,089 641,951
One-Three Years 620,741 428,893
Three-Five Years 300,863 163,520
Greater than Five Years 56,525 107,137
Off-balance sheet financial instrument 1,621,218 1,341,501
Financial standby letter of credit    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Less than One Year 42,516 34,212
One-Three Years 6,633 8,699
Three-Five Years 0 0
Greater than Five Years 0 0
Off-balance sheet financial instrument 49,149 42,911
Unconditional cancellable commitments    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Off-balance sheet financial instrument $ 513,000 $ 504,600