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Fair Value Measurements (Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans $ 4,233,837 $ 4,151,884
Time deposits [1] 1,288,611 1,296,396
FHLB advances 145,000 593,859
Junior subordinated debentures 22,681 22,681
Reported Value Measurement [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans 4,233,837 4,151,884
Time deposits 1,288,611 1,296,396
FHLB advances 145,000 593,859
Junior subordinated debentures 22,681 22,681
Estimate of Fair Value Measurement [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans 4,145,516 4,114,628
Time deposits 1,294,053 1,302,128
FHLB advances 144,862 602,000
Junior subordinated debentures 20,181 19,422
Estimate of Fair Value Measurement [Member] | Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans 0 0
Time deposits 0 0
FHLB advances 0 0
Junior subordinated debentures 0 0
Estimate of Fair Value Measurement [Member] | Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans 0 0
Time deposits 1,294,053 1,302,128
FHLB advances 144,862 602,000
Junior subordinated debentures 20,181 19,422
Estimate of Fair Value Measurement [Member] | Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans 4,145,516 4,114,628
Time deposits 0 0
FHLB advances 0 0
Junior subordinated debentures $ 0 $ 0
[1] Includes wholesale brokered time deposit balances of $515,228 and $591,541, respectively, as of December 31, 2021 and December 31, 2020.