Premises and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Right-of-use lease assets	$ 70,888	$ 67,267
Accumulated depreciation and amortization	(201,727)	(194,874)
Total premises and equipment, net	576,466	570,678
Land
Property, Plant and Equipment [Line Items]
Premises and equipment	122,272	122,093
Buildings and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment	389,608	388,675
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment	115,766	112,133
Software
Property, Plant and Equipment [Line Items]
Premises and equipment	62,260	61,242
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment	$ 17,399	$ 14,142