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Commitments and Contingencies (Details) - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Supply Commitment [Line Items]    
Loss contingencies for all legal claims $ 20,000 $ 52,000
Loss contingencies for all legal claims 20,000 52,000
Commitments to extend credit    
Supply Commitment [Line Items]    
Commitments and letters of credit 2,787,710,000 2,329,421,000
Standby letters of credit    
Supply Commitment [Line Items]    
Commitments and letters of credit 135,056,000 126,137,000
Other letters of credit    
Supply Commitment [Line Items]    
Commitments and letters of credit 26,937,000 56,333,000
Commitments to fund investments in affordable housing partnerships    
Supply Commitment [Line Items]    
Commitments and letters of credit $ 12,399,000 $ 9,514,000