Loans Receivable - Troubled Debt Restructurings by Type of Modification (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract	Dec. 31, 2020 USD ($) contract
Troubled debt restructurings
Number of contracts | contract	25	18	18
Type of modification	$ 21,910	$ 14,623	$ 8,238
Number of re-modified TDRs | contract	11	9	5
Type of re-modification	$ 588	$ 7,370	$ 6,780
Number of contracts | contract	0	1	0
Recorded investment at the time of modification		$ 4,167
Current recorded investment		3,823
Current allowance		0
Rate
Troubled debt restructurings
Type of modification	$ 129	2,362	$ 65
Type of re-modification		2,191
Payment
Troubled debt restructurings
Type of modification	500	30	111
Type of re-modification	53
Maturity date
Troubled debt restructurings
Type of modification	21,281	12,160	7,702
Type of re-modification	$ 535	5,108	6,700
Other
Troubled debt restructurings
Type of modification		71	360
Type of re-modification		$ 71	$ 80
Personal Banking:
Troubled debt restructurings
Number of contracts | contract	10	4	3
Type of modification	$ 693	$ 148	$ 167
Number of re-modified TDRs | contract	2	2
Type of re-modification	$ 129	$ 114
Personal Banking: | Rate
Troubled debt restructurings
Type of modification	0	114	65
Type of re-modification		114
Personal Banking: | Payment
Troubled debt restructurings
Type of modification	402	30	0
Type of re-modification	0
Personal Banking: | Maturity date
Troubled debt restructurings
Type of modification	291	4	102
Type of re-modification	$ 129	0
Personal Banking: | Other
Troubled debt restructurings
Type of modification		0	$ 0
Type of re-modification		$ 0
Personal Banking: | Residential mortgage loans
Troubled debt restructurings
Number of contracts | contract	4	1	1
Type of modification	$ 522	$ 114	$ 88
Number of re-modified TDRs | contract	1	1
Type of re-modification	$ 129	$ 114
Personal Banking: | Residential mortgage loans | Rate
Troubled debt restructurings
Type of modification	0	114	0
Type of re-modification		114
Personal Banking: | Residential mortgage loans | Payment
Troubled debt restructurings
Type of modification	379	0	0
Type of re-modification	0
Personal Banking: | Residential mortgage loans | Maturity date
Troubled debt restructurings
Type of modification	143	0	88
Type of re-modification	$ 129	0
Personal Banking: | Residential mortgage loans | Other
Troubled debt restructurings
Type of modification		0	$ 0
Type of re-modification		$ 0
Personal Banking: | Home equity loans
Troubled debt restructurings
Number of contracts | contract	6	3	2
Type of modification	$ 171	$ 34	$ 79
Number of re-modified TDRs | contract	1	1
Type of re-modification	$ 0	$ 0
Personal Banking: | Home equity loans | Rate
Troubled debt restructurings
Type of modification	0	0	65
Type of re-modification		0
Personal Banking: | Home equity loans | Payment
Troubled debt restructurings
Type of modification	23	30	0
Type of re-modification	0
Personal Banking: | Home equity loans | Maturity date
Troubled debt restructurings
Type of modification	148	4	14
Type of re-modification	$ 0	0
Personal Banking: | Home equity loans | Other
Troubled debt restructurings
Type of modification		0	$ 0
Type of re-modification		$ 0
Commercial Banking:
Troubled debt restructurings
Number of contracts | contract	15	14	15
Type of modification	$ 21,217	$ 14,475	$ 8,071
Number of re-modified TDRs | contract	9	7	5
Type of re-modification	$ 459	$ 7,256	$ 6,780
Number of contracts | contract		1
Recorded investment at the time of modification		$ 4,167
Current recorded investment		3,823
Current allowance		0
Commercial Banking: | Rate
Troubled debt restructurings
Type of modification	129	2,248	0
Type of re-modification		2,077
Commercial Banking: | Payment
Troubled debt restructurings
Type of modification	98	0	111
Type of re-modification	53
Commercial Banking: | Maturity date
Troubled debt restructurings
Type of modification	20,990	12,156	7,600
Type of re-modification	$ 406	5,108	6,700
Commercial Banking: | Other
Troubled debt restructurings
Type of modification		71	360
Type of re-modification		$ 71	$ 80
Commercial Banking: | Commercial real estate loans
Troubled debt restructurings
Number of contracts | contract	9	8	9
Type of modification	$ 20,954	$ 10,572	$ 7,615
Number of re-modified TDRs | contract	4	7	3
Type of re-modification	$ 249	$ 7,256	$ 6,652
Number of contracts | contract		1
Recorded investment at the time of modification		$ 4,167
Current recorded investment		3,823
Current allowance		0
Commercial Banking: | Commercial real estate loans | Rate
Troubled debt restructurings
Type of modification	129	2,077	0
Type of re-modification		2,077
Commercial Banking: | Commercial real estate loans | Payment
Troubled debt restructurings
Type of modification	98	0	0
Type of re-modification	53
Commercial Banking: | Commercial real estate loans | Maturity date
Troubled debt restructurings
Type of modification	20,727	8,424	7,335
Type of re-modification	$ 196	5,108	6,652
Commercial Banking: | Commercial real estate loans | Other
Troubled debt restructurings
Type of modification		71	280
Type of re-modification		$ 71	$ 0
Commercial Banking: | Commercial real estate loans - owner occupied
Troubled debt restructurings
Number of contracts | contract			1
Type of modification			$ 48
Number of re-modified TDRs | contract			1
Type of re-modification			$ 48
Commercial Banking: | Commercial real estate loans - owner occupied | Rate
Troubled debt restructurings
Type of modification			0
Commercial Banking: | Commercial real estate loans - owner occupied | Payment
Troubled debt restructurings
Type of modification			0
Commercial Banking: | Commercial real estate loans - owner occupied | Maturity date
Troubled debt restructurings
Type of modification			48
Type of re-modification			48
Commercial Banking: | Commercial real estate loans - owner occupied | Other
Troubled debt restructurings
Type of modification			0
Type of re-modification			$ 0
Commercial Banking: | Commercial loans
Troubled debt restructurings
Number of contracts | contract	6	6	5
Type of modification	$ 263	$ 3,903	$ 408
Number of re-modified TDRs | contract	5		1
Type of re-modification	$ 210		$ 80
Commercial Banking: | Commercial loans | Rate
Troubled debt restructurings
Type of modification	0	171	0
Commercial Banking: | Commercial loans | Payment
Troubled debt restructurings
Type of modification	0	0	111
Type of re-modification	0
Commercial Banking: | Commercial loans | Maturity date
Troubled debt restructurings
Type of modification	263	3,732	217
Type of re-modification	$ 210		0
Commercial Banking: | Commercial loans | Other
Troubled debt restructurings
Type of modification		$ 0	80
Type of re-modification			$ 80