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Premises and Equipment and Lease Commitments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 485,363 $ 466,183  
Accumulated depreciation and amortization (157,478) (178,001)  
Property, Plant and Equipment, Net 327,885 288,182  
Depreciation and amortization expense 25,900 22,200 $ 22,800
Lease, Cost [Abstract]      
Operating Lease, Cost 18,292 15,696 13,963
Short-term Lease, Cost 401 297 354
Finance Lease, Interest Expense 189 208 227
Amortization of right-of-use assets 226 226 226
Sublease Income (1,357) (1,309) (1,324)
Lease, Cost $ 17,751 $ 15,118 13,446
Weighted average remaining lease term      
Operating leases 10 years 5 months 8 days 10 years  
Finance leases 5 years 10 months 2 days 6 years 10 months 2 days  
Weighted average discount rate      
Operating leases 3.11% 2.71%  
Finance leases 7.22% 7.22%  
Operating cash flows related to operating leases $ 16,956 $ 14,712 13,494
Financing cash flows related to finance leases 189 208 227
Finance Lease, Principal Payments $ 281 $ 261 $ 243
Finance Leases      
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets Other assets  
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities Other liabilities  
Property, Plant and Equipment      
Right of Use Assets [Abstract]      
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] $ 126,767 $ 92,819  
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] 1,318 1,544  
Right of Use Assets 128,085 94,363  
Lease Liabilities [Abstract]      
Operating Lease, Liability 133,108 97,925  
Finance Lease, Liability 2,458 2,739  
Lease Liability 135,566 100,664  
Operating Leases      
2023 18,975    
2024 19,365    
2025 16,944    
2026 14,463    
2027 13,272    
Thereafter 75,939    
Total 158,958    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (25,850)    
Finance Leases      
2023 480    
2024 527    
2025 527    
2026 527    
2027 527    
Thereafter 440    
Finance Lease, Liability, Payment, Due 3,028    
Finance Lease, Liability, Undiscounted Excess Amount (570)    
Land      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 71,741 70,240  
Building      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 206,434 202,255  
Building | Minimum      
Property, Plant and Equipment [Line Items]      
Range of Useful Lives 15 years    
Building | Maximum      
Property, Plant and Equipment [Line Items]      
Range of Useful Lives 30 years    
Leaseholds and Leasehold Improvements      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 62,209 54,922  
Leaseholds and Leasehold Improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Range of Useful Lives 15 years    
Leaseholds and Leasehold Improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Range of Useful Lives 20 years    
Furniture and Equipment      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 144,979 $ 138,766  
Furniture and Equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Range of Useful Lives 3 years    
Furniture and Equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Range of Useful Lives 20 years