Loans Receivable - Performance of Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Current
Troubled debt restructurings
Loans modified in period	$ 31,708	$ 512
30-59 days delinquent
Troubled debt restructurings
Loans modified in period	95	799
60-89 days delinquent
Troubled debt restructurings
Loans modified in period	12	0
90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	30	0
Personal Banking | Current
Troubled debt restructurings
Loans modified in period	1,027	431
Personal Banking | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	90	0
Personal Banking | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	12	0
Personal Banking | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	5	0
Personal Banking | Residential mortgage loans | Current
Troubled debt restructurings
Loans modified in period	492	262
Personal Banking | Residential mortgage loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Residential mortgage loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Residential mortgage loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	5	0
Personal Banking | Home equity loans | Current
Troubled debt restructurings
Loans modified in period	533	166
Personal Banking | Home equity loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	90	0
Personal Banking | Home equity loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	12	0
Personal Banking | Home equity loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Consumer loans | Current
Troubled debt restructurings
Loans modified in period	2	3
Personal Banking | Consumer loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Consumer loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Consumer loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Current
Troubled debt restructurings
Loans modified in period	30,681	81
Commercial Banking | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	5	799
Commercial Banking | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	25	0
Commercial Banking | Commercial real estate loans | Current
Troubled debt restructurings
Loans modified in period	29,974	81
Commercial Banking | Commercial real estate loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0	139
Commercial Banking | Commercial real estate loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Commercial real estate loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Commercial real estate loans - owner occupied | Current
Troubled debt restructurings
Loans modified in period	697
Commercial Banking | Commercial real estate loans - owner occupied | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0
Commercial Banking | Commercial real estate loans - owner occupied | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0
Commercial Banking | Commercial real estate loans - owner occupied | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0
Commercial Banking | Commercial loans | Current
Troubled debt restructurings
Loans modified in period	10	0
Commercial Banking | Commercial loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	5	660
Commercial Banking | Commercial loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Commercial loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	$ 25	$ 0