Premises and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Right-of-use lease assets	$ 59,654	$ 67,224
Accumulated depreciation and amortization	(240,273)	(222,682)
Total premises and equipment, net	568,343	585,431
Land
Property, Plant and Equipment [Line Items]
Premises and equipment	118,029	124,819
Buildings and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment	415,128	404,223
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment	125,940	123,741
Software
Property, Plant and Equipment [Line Items]
Premises and equipment	64,883	63,844
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment	$ 24,982	$ 24,262