Borrowed Funds and Subordinated Debt - Narrative (Details) - USD ($) $ in Thousands	Jul. 07, 2020	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Maximum FHLB and other borrowings outstanding at any month end		$ 153,100	$ 25,800	$ 4,200
Subordinated debt		59,815	$ 59,498	$ 59,182
Fixed-to Floating Rate Subordinated Notes
Debt Instrument [Line Items]
Subordinated debt, rate	5.25%
Original debt issuance costs	$ 1,200
Line of credit | FHLB
Debt Instrument [Line Items]
Remaining borrowing capacity at FHLB		670,000
Line of credit | Federal Reserve Bank of Boston | Federal Reserve Bank Discount Window
Debt Instrument [Line Items]
Current borrowing capacity at FRB		$ 300,000