Loans and Allowance for Credit Losses (Aging of Past Due Financing Receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 2,668,681	$ 14,922
Nonaccrual	$ 1,894	1,908
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		$ 2,556,107
Percent of total loans, Total past due		0.60%
Percent of total loans, Nonaccrual	0.10%	0.10%
Percent of total loans, Total loans		100.00%
Loans, net	$ 9,526	$ 8,437
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	2,668,681	14,922
PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 2,668,681
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		$ 26,642
Percent of total loans, Total loans	100.00%	1.00%
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	$ 2,668,681
Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 2,658,159	$ 2,512,635
Percent of total loans, Current	99.60%	98.30%
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	$ 2,658,159	$ 2,512,635
Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 8,628
Percent of total loans, Total past due	0.30%
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	$ 8,628
Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 6,923	$ 11,164
Percent of total loans, Total past due	0.30%	0.40%
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	$ 6,923	$ 11,164
Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	1,094	$ 1,917
Percent of total loans, Total past due		0.10%
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	1,094	$ 1,917
Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	611	$ 1,841
Percent of total loans, Total past due		0.10%
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	611	$ 1,841
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	866,225	8,212
Nonaccrual	1,489	1,259
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		810,497
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	866,225	8,212
Residential real estate | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	866,225
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		13,956
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	866,225
Residential real estate | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	858,389	787,070
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	858,389	787,070
Residential real estate | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	6,347
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	6,347
Residential real estate | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	5,177	6,214
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	5,177	6,214
Residential real estate | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	952	891
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	952	891
Residential real estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	218	1,107
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	218	1,107
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	1,096,937	1,079
Nonaccrual		150
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		1,065,409
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	1,096,937	1,079
Commercial real estate | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	1,096,937
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		11,866
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	1,096,937
Commercial real estate | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	1,096,189	1,052,314
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	1,096,189	1,052,314
Commercial real estate | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	748
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	748
Commercial real estate | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	337	369
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	337	369
Commercial real estate | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	42
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	42
Commercial real estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	369	710
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	369	710
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	140,312	15
Nonaccrual	167	174
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		147,856
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	140,312	15
Commercial | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	140,312
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		156
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	140,312
Commercial | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	140,096	147,511
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	140,096	147,511
Commercial | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	49
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	49
Commercial | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	45	15
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	45	15
Commercial | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	4
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	4
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	314,760	234
Nonaccrual	61	28
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		286,026
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	314,760	234
Consumer | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	314,760
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		14
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	314,760
Consumer | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	314,039	285,750
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	314,039	285,750
Consumer | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	660
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	660
Consumer | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	633	223
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	633	223
Consumer | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	27	11
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	27	11
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	250,447
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	250,447
Construction | Commercial and Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	250,447	5,382
Nonaccrual	177	297
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		246,319
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	250,447	5,382
Construction | Commercial and Residential Real Estate | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	250,447
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)		650
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	250,447
Construction | Commercial and Residential Real Estate | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	249,446	239,990
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	249,446	239,990
Construction | Commercial and Residential Real Estate | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	824
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	824
Construction | Commercial and Residential Real Estate | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	731	4,343
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	731	4,343
Construction | Commercial and Residential Real Estate | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	69	1,015
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	69	1,015
Construction | Commercial and Residential Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	24	24
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value)	$ 24	$ 24