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Fair Value Measurements (Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans $ 5,189,189 $ 5,072,112
Time deposits [1] 1,531,835 1,122,882
Federal Home Loan Bank advances 925,000 980,000
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 5,189,189 5,072,112
Time deposits 1,531,835 1,122,882
Federal Home Loan Bank advances 925,000 980,000
Junior subordinated debentures 22,681 22,681
Fair Value Measurement [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net of allowance for credit losses on loans 5,044,231 4,929,449
Time deposits 1,558,899 1,137,219
Federal Home Loan Bank advances 925,350 978,590
Junior subordinated debentures 18,558 18,963
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
Federal Home Loan Bank advances 0 0
Junior subordinated debentures 0 0
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 1,558,899 1,137,219
Federal Home Loan Bank advances 925,350 978,590
Junior subordinated debentures 18,558 18,963
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 5,044,231 4,929,449
Time deposits 0 0
Federal Home Loan Bank advances 0 0
Junior subordinated debentures $ 0 $ 0
[1] Includes wholesale brokered time deposit balances of $607,329 and $327,044, respectively, as of March 31, 2023 and December 31, 2022.