Premises and Equipment, Net - Premises and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Premises and Equipment, Net, by Type [Abstract]
Total cost of premises and equipment	$ 533,344	$ 513,664
Less accumulated depreciation and amortization	302,201	286,383
Premises and equipment, net	231,143	227,281
Finance lease right-of-use assets	3,299	3,751
Assets held for sale	968	1,197
Total premises and equipment, net	235,410	232,229
Land [Member]
Premises and Equipment, Net, by Type [Abstract]
Total cost of premises and equipment	56,610	56,747
Building and Leasehold Improvements [Member]
Premises and Equipment, Net, by Type [Abstract]
Total cost of premises and equipment	249,405	246,759
Furniture and Equipment [Member]
Premises and Equipment, Net, by Type [Abstract]
Total cost of premises and equipment	$ 227,329	$ 210,158