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Commitments And Contingencies (Tables)
 3 Months Ended
Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Summary of the Total Unfunded, or Off-Balance Sheet, Credit Extension Commitments
A summary of the total unfunded, or off-balance sheet, credit extension commitments follows:
Dollars in thousandsMarch 31,
2022
Commitments to extend credit: 
Revolving home equity and credit card lines$99,419 
Construction loans296,068 
Other loans422,148 
Standby letters of credit23,070 
Total$840,705