Loans and Allowance for Credit Losses (Loans by Class of Loan Portfolio) (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Jul. 01, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Financing Receivable, Past Due [Line Items]
Loans	$ 4,617,719			$ 2,556,107
% of Total Loans	1.0000			1.0000
Less: allowance for credit losses	$ (57,051)	$ (36,361)	$ (29,014)	$ (16,643)	$ (16,277)	$ (15,483)	$ (13,944)
Loans, net	4,560,668			2,539,464
Construction
Financing Receivable, Past Due [Line Items]
Loans	$ 328,750			$ 246,319
% of Total Loans	0.0712			0.0964
Less: allowance for credit losses	$ (3,831)	(2,419)	(2,386)	$ (2,973)	(3,032)	(3,345)	(2,454)
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	$ 1,439,464			$ 810,497
% of Total Loans	0.3117			0.3171
Less: allowance for credit losses	$ (19,175)	(13,167)	(9,151)	$ (2,622)	(3,008)	(2,778)	(2,858)
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	$ 2,283,521			$ 1,065,409
% of Total Loans	0.4945			0.4168
Less: allowance for credit losses	$ (22,800)	(11,332)	(10,267)	$ (4,899)	(5,009)	(4,441)	(4,598)
Commercial
Financing Receivable, Past Due [Line Items]
Loans	$ 229,474			$ 147,856
% of Total Loans	0.0497			0.0578
Less: allowance for credit losses	$ (4,337)	(2,398)	(1,956)	$ (1,652)	(1,907)	(1,681)	(2,070)
Consumer
Financing Receivable, Past Due [Line Items]
Loans	$ 330,411			$ 286,026
% of Total Loans	0.0716			0.1119
Less: allowance for credit losses	$ (6,856)	$ (7,045)	(5,254)	$ (4,497)	$ (3,321)	$ (3,238)	$ (1,964)
Credit Cards
Financing Receivable, Past Due [Line Items]
Loans	$ 6,099			$ 0
% of Total Loans	0.0013			0
Less: allowance for credit losses	$ (52)		$ 0	$ 0