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Premises and Equipment - Schedule of Premises and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Abstract]    
Land and improvements $ 58,534 $ 62,131
Buildings and improvements 222,407 224,942
Furniture and equipment 109,159 106,501
Total cost 390,100 393,574
Accumulated depreciation and amortization (208,254) (200,214)
Right of use assets 47,170 56,061
Total premises and equipment, net $ 229,016 $ 249,421