Loans and Allowance for Credit Losses - Schedule of Amortized Cost Basis of Collateral-Dependent Loans by Class of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	$ 7,659,299	$ 7,561,188
Business or Other Assets
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	4,223	3,613
Business or Other Assets | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	2,223	1,563
Business or Other Assets | Income-producing - commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	2,000	2,000
Business or Other Assets | Owner-occupied - commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	0	0
Business or Other Assets | Real estate mortgage - residential
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	0	0
Business or Other Assets | Construction - commercial and residential
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	0	0
Business or Other Assets | Other consumer
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	0	50
Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	26,735	27,084
Real Estate | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	995	1,871
Real Estate | Income-producing - commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	4,325	4,328
Real Estate | Owner-occupied - commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	19,184	19,187
Real Estate | Real estate mortgage - residential
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	1,698	1,698
Real Estate | Construction - commercial and residential
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	533	0
Real Estate | Other consumer
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, net	$ 0	$ 0