Premises and Equipment
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Premises and Equipment Premises and Equipment 
Premises and equipment at December 31, 2021, and 2020, are summarized as follows:
(Dollars in thousands)20212020
Land and land improvements$9,090 $9,090 
Bank premises and leasehold improvements53,857 51,312 
Computer software and equipment14,600 13,953 
Furniture, fixtures, and equipment23,734 22,743 
Total premises and equipment, before accumulated depreciation101,281 97,098 
Less accumulated depreciation(56,592)(50,390)
Total premises and equipment, net of accumulated depreciation$44,689 $46,708 
 
Total depreciation expense related to premises and equipment amounted to $6.2 million, $5.4 million, and $4.7 million for the years ended December 31, 2021, 2020, and 2019, respectively.