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Outstanding Commitments and Contingent Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Credit Commitments and Contingencies    
Total commitments $ 2,027,354 $ 2,016,207
Commitments to extend credit    
Credit Commitments and Contingencies    
Total commitments 1,994,872 1,983,655
Standby letters of credit    
Credit Commitments and Contingencies    
Total commitments $ 32,482 $ 32,552