Premises and Equipment, Summary Composition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 781,932
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	402,840
Property, Plant and Equipment, Net, Total	379,093	$ 372,978
Depreciation	48,845	46,989	$ 45,088
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	63,642
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	0
Property, Plant and Equipment, Net, Total	63,642	63,984
Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	22,911
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	11,533
Property, Plant and Equipment, Net, Total	11,379	11,250
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	415,690
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	198,699
Property, Plant and Equipment, Net, Total	216,991	212,004
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	60,198
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	50,055
Property, Plant and Equipment, Net, Total	10,143	10,845
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	116,482
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	91,823
Property, Plant and Equipment, Net, Total	24,658	35,627
Operating Leases [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	56,818
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	23,616
Property, Plant and Equipment, Net, Total	33,202	24,712
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	46,192
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	27,113
Property, Plant and Equipment, Net, Total	$ 19,078	$ 14,556