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Loans - Nonaccrual Loans and Loans Past Due 90 Days or More (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual, interest income	$ 100	$ 100	$ 1,100	$ 100
Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	52,373		52,373		$ 25,955
Nonaccrual Loans with No Allowance for Credit Losses	20,037		20,037		8,922
Collateral dependent loans	877		877		2,466
Commercial Portfolio Segment \| Commercial and industrial \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	264		264		0
Nonaccrual Loans with No Allowance for Credit Losses	0		0		0
Collateral dependent loans	0		0		0
Commercial Portfolio Segment \| Single tenant lease financing \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	1,665		1,665		0
Nonaccrual Loans with No Allowance for Credit Losses	0		0		0
Collateral dependent loans	0		0		0
Commercial Portfolio Segment \| Healthcare finance \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	1,460		1,460		0
Nonaccrual Loans with No Allowance for Credit Losses	1,460		1,460		0
Collateral dependent loans	0		0		0
Commercial Portfolio Segment \| Small business lending \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	13,524		13,524		11,429
Nonaccrual Loans with No Allowance for Credit Losses	12,639		12,639		4,778
Collateral dependent loans	877		877		1,320
Commercial Portfolio Segment \| Franchise finance \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	30,978		30,978		10,382
Nonaccrual Loans with No Allowance for Credit Losses	1,456		1,456		0
Collateral dependent loans	0		0		0
Consumer Portfolio \| Residential mortgage \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	4,407		4,407		4,083
Nonaccrual Loans with No Allowance for Credit Losses	4,407		4,407		4,083
Collateral dependent loans	0		0		1,142
Consumer Portfolio \| Other consumer loans \| Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual Loans	75		75		61
Nonaccrual Loans with No Allowance for Credit Losses	75		75		61
Collateral dependent loans	$ 0		$ 0		$ 4