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Premises and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Summary of Premises and Equipment
The composition of premises and equipment was as follows:
December 31,
(dollars in thousands)20212020
Land$71,014 $72,600 
Buildings394,400 373,660 
Furniture, fixtures, and equipment118,124 110,735 
Leasehold improvements46,330 44,734 
Total629,868 601,729 
Accumulated depreciation(153,682)(137,321)
Premises and equipment, net$476,186 $464,408