Loans and Allowance for Credit Losses (Schedule of Collateral-Dependent Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Loan Receivables:
Loans, net	$ 4,591,389	$ 4,583,659
Real Estate Collateral
Loan Receivables:
Loans, net	24,946	14,843
Other Collateral
Loan Receivables:
Loans, net	1,651	2,010
Total
Loan Receivables:
Loans, net	26,597	16,853
Construction | Real Estate Collateral
Loan Receivables:
Loans, net	477	662
Construction | Other Collateral
Loan Receivables:
Loans, net	0	0
Construction | Total
Loan Receivables:
Loans, net	477	662
Residential real estate | Real Estate Collateral
Loan Receivables:
Loans, net	19,272	8,047
Residential real estate | Other Collateral
Loan Receivables:
Loans, net	0	0
Residential real estate | Total
Loan Receivables:
Loans, net	19,272	8,047
Commercial real estate | Real Estate Collateral
Loan Receivables:
Loans, net	5,197	6,134
Commercial real estate | Other Collateral
Loan Receivables:
Loans, net	0	0
Commercial real estate | Total
Loan Receivables:
Loans, net	5,197	6,134
Commercial | Real Estate Collateral
Loan Receivables:
Loans, net	0	0
Commercial | Other Collateral
Loan Receivables:
Loans, net	733	1,106
Commercial | Total
Loan Receivables:
Loans, net	733	1,106
Consumer | Real Estate Collateral
Loan Receivables:
Loans, net	0	0
Consumer | Other Collateral
Loan Receivables:
Loans, net	918	904
Consumer | Total
Loan Receivables:
Loans, net	$ 918	$ 904