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Loans and Allowance for Credit Losses - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Loans and Leases Receivable Disclosure [Line Items]    
Deferred commitment fee $ 28,500 $ 29,200
Servicing asset at fair value 344,100 361,500
Loans, net 7,659,299 $ 7,561,188
ADC Loans    
Loans and Leases Receivable Disclosure [Line Items]    
Loans, net $ 1,600,000  
Percent of ADC loan portfolio using interest reserves 59.00%  
Real estate mortgage - residential | Land Acquisition Development and Construction Loans | Maximum    
Loans and Leases Receivable Disclosure [Line Items]    
Loan period 36 months  
Consumer Portfolio Segment | Land Acquisition Development and Construction Loans | Maximum    
Loans and Leases Receivable Disclosure [Line Items]    
Loan period 24 months  
Income Producing Commercial Real Estate and Real Estate Construction    
Loans and Leases Receivable Disclosure [Line Items]    
Stress test assumption increase interest rates 2.00%  
Income Producing Commercial Real Estate and Real Estate Construction | Minimum    
Loans and Leases Receivable Disclosure [Line Items]    
Minimum cash flow debt service coverage ratio 1.15  
Income Producing Commercial Real Estate and Real Estate Construction | Maximum    
Loans and Leases Receivable Disclosure [Line Items]    
Minimum cash flow debt service coverage ratio 1.0  
Commercial | Minimum    
Loans and Leases Receivable Disclosure [Line Items]    
Loan period, preferred term 5 years  
Commercial | Maximum    
Loans and Leases Receivable Disclosure [Line Items]    
Loan period 10 years  
Loan period, preferred term 7 years  
Amortization term 25 years