Loans - Categories (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Nov. 10, 2025	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		$ 3,579,662		$ 4,143,966
Net deferred loan origination fees/costs and premiums/discounts on purchased loans and other		23,844		26,680
Total loans		3,603,506		4,170,646
Allowance for credit losses		(59,923)	$ (46,517)	(44,769)	$ (45,721)	$ (43,405)	$ (38,774)
Net loans		3,543,583		4,125,877
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(1,776)	(1,907)	(1,265)	(1,226)	(1,389)	(2,185)
Owner-occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(286)	(472)	(528)	(552)	(561)	(825)
Investor commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(2,715)	(1,609)	(1,149)	(1,143)	(1,172)	(1,311)
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(1,950)	(1,771)	(1,984)	(2,783)	(3,140)	(2,167)
Single tenant lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(652)	(4,446)	(4,782)	(6,694)	(8,256)	(8,129)
Public finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(429)	(522)	(703)	(698)	(742)	(1,372)
Healthcare finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(717)	(1,199)	(1,412)	(1,722)	(1,809)	(1,976)
Franchise finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(17,855)	(13,082)	(8,976)	(7,954)	(5,991)	(6,363)
Small business lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(28,108)	(13,722)	(16,161)	(14,199)	(11,993)	(6,532)
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(2,174)	(1,923)	(2,136)	(2,162)	(2,112)	(2,054)
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(40)	(92)	(106)	(115)	(118)	(171)
Other consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses		(3,221)	$ (5,772)	(5,567)	$ (6,473)	$ (6,122)	$ (5,689)
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		2,791,577		3,342,585
Commercial Portfolio Segment | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		206,301		120,175
Total loans		206,301		120,175
Commercial Portfolio Segment | Owner-occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		50,046		53,591
Total loans		50,046		53,591
Commercial Portfolio Segment | Investor commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		644,184		269,431
Total loans		644,184		269,431
Commercial Portfolio Segment | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		300,291		413,523
Total loans		300,291		413,523
Commercial Portfolio Segment | Single tenant lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		108,146		949,748
Total loans		108,146		949,748
Loans sold		836,900
Commercial Portfolio Segment | Single tenant lease financing | Subsequent Event
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans sold	$ 14,300
Commercial Portfolio Segment | Public finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		480,119		485,867
Total loans		480,119		485,867
Commercial Portfolio Segment | Public finance | Interest rate swaps
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		20,200		22,900
Commercial Portfolio Segment | Healthcare finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		150,522		181,427
Commercial Portfolio Segment | Franchise finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		450,340		536,909
Commercial Portfolio Segment | Small business lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		401,628		331,914
Commercial Portfolio Segment | Small business lending | Loans Insured or Guaranteed by US Government Authorities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		43,500		34,000
Consumer Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		788,085		801,381
Consumer Portfolio | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		349,275		375,160
Consumer Portfolio | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		15,806		18,274
Consumer Portfolio | Other consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		$ 423,004		$ 407,947