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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Jan. 01, 2023	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 1,953		$ 889	$ 6,147	$ 2,859
SBA guaranteed servicing income		846		$ 1,120	2,693	$ 2,901
Loans		8,027,037	$ 6,665,145		8,027,037
Goodwill impairment			0
Sold portions of SBA loans with servicing retained - not included in tables above
Finite-Lived Intangible Assets [Line Items]
Loans		$ 364,859	$ 392,370		$ 364,859
Customer lists
Finite-Lived Intangible Assets [Line Items]
Useful life		5 years			5 years
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Useful life		10 years			10 years
Core deposit intangibles | GrandSouth
Finite-Lived Intangible Assets [Line Items]
Useful life	10 years
Finite-lived intangible assets acquired	$ 28,800

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