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Loans and Allowance for Credit Losses - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) credit_card loan	Sep. 30, 2024 USD ($) loan	Sep. 30, 2025 USD ($) loan credit_card	Sep. 30, 2024 USD ($) loan	Dec. 31, 2024 USD ($)
Loan Receivables:
Deferred costs, net of fees	$ 2,900		$ 2,900		$ 3,200
Loans, net	$ 4,823,415		$ 4,823,415		4,714,078
Number of loan modifications | loan	1	0	10	0
Number of loan modifications made to borrowers experiencing financial difficulty in preceding 12 months | loan	0	0	0	0
Financing receivable modified during preceding 12 months	$ 6,800		$ 6,800
Other real estate owned, net	120		120		179
Repossessed assets	3,400		3,400		$ 3,300
MSR impairment			0
Net servicing income	$ 147	$ (425)	$ 251	$ 81
Minimum | Discount rate
Loan Receivables:
MSR range (as a percent)	0.095		0.095		0.095
Minimum | Prepayment speed
Loan Receivables:
MSR, measurement input	0.0608		0.0569
Maximum | Discount rate
Loan Receivables:
MSR range (as a percent)	0.100		0.100		0.100
Maximum | Prepayment speed
Loan Receivables:
MSR, measurement input	0.0927		0.0822
Weighted Average | Prepayment speed
Loan Receivables:
MSR, measurement input	0.0014		0.0014
Credit cards
Loan Receivables:
Number of loans downgraded | credit_card	2		2
Commercial real estate
Loan Receivables:
Number of loan modifications made to borrowers experiencing financial difficulty in preceding 12 months | loan			10
Financing receivable modified during preceding 12 months	$ 6,600		$ 6,600
Consumer mortgage loans	93		93		$ 554
Commercial
Loan Receivables:
Financing receivable modified during preceding 12 months	177		177
Residential real estate
Loan Receivables:
Financing receivable modified during preceding 12 months	33		33
Consumer
Loan Receivables:
Consumer mortgage loans	124		124		124
Federal National Mortgage Association (FNMA)
Loan Receivables:
Loans, net	352,700		352,700
Federal Home Loan Mortgage Corporation (FHLMC)
Loan Receivables:
Loans, net	109,100		109,100
Severn Bancorp, Inc. And TCFC
Loan Receivables:
Business combination, loan acquired	1,580,000		1,580,000		1,690,000
Loans acquired, net of related discount	$ 82,500		$ 82,500		$ 92,000

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