Loans and Allowance for Credit Losses (Loans by Class of Loan Portfolio) (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 4,733,909		$ 4,641,010
% of Total Loans	1.0000		1.0000
Less: allowance for credit losses	$ (58,669)	$ (58,478)	$ (57,351)	$ (57,051)	$ (29,014)	$ (16,643)
Loans, net	4,675,240		4,583,659
Construction
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 337,113		$ 299,000
% of Total Loans	0.0712		0.0640
Less: allowance for credit losses	$ (2,894)	(3,471)	$ (3,935)	(3,831)	(2,386)	(2,973)
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 1,570,998		$ 1,490,438
% of Total Loans	0.3319		0.3210
Less: allowance for credit losses	$ (23,529)	(22,060)	$ (21,949)	(19,175)	(9,151)	(2,622)
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 2,276,381		$ 2,286,154
% of Total Loans	0.4809		0.4930
Less: allowance for credit losses	$ (21,277)	(21,424)	$ (20,975)	(22,800)	(10,267)	(4,899)
Commercial
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 225,083		$ 229,939
% of Total Loans	0.0475		0.0500
Less: allowance for credit losses	$ (3,225)	(2,866)	$ (2,671)	(4,337)	(1,956)	(1,652)
Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 317,149		$ 328,896
% of Total Loans	0.0670		0.0710
Less: allowance for credit losses	$ (7,254)	(8,145)	$ (7,601)	(6,856)	$ (5,254)	(4,497)
Credit cards
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 7,185		$ 6,583
% of Total Loans	0.0015		0.0010
Less: allowance for credit losses	$ (490)	$ (512)	$ (220)	$ (52)		$ 0