Loans Receivable and Allowance for Credit Losses - Loans Modified that Subsequently Defaulted (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2022 USD ($) loan	Sep. 30, 2022 USD ($) loan	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 565,000	$ 17,871,000
Commitment to lend			$ 5,800,000	$ 16,200,000
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	565,000	9,678,000
Other Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	8,193,000
Commercial lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 496,000	$ 17,802,000
Number of Loans | loan	0	3
Recorded Investment	$ 0	$ 14,909,000
Commercial lending | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	496,000	9,609,000
Commercial lending | Other Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	8,193,000
Commercial lending | Commercial and industrial (“C&I”)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 496,000	$ 17,802,000
Number of Loans | loan	0	2
Recorded Investment	$ 0	$ 13,901,000
Commercial lending | Commercial and industrial (“C&I”) | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	496,000	9,609,000
Commercial lending | Commercial and industrial (“C&I”) | Other Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 0	$ 8,193,000
Commercial lending | Real estate loan | Multifamily residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1
Recorded Investment	$ 0	$ 1,008,000
Commercial lending | Total CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1
Recorded Investment	$ 0	$ 1,008,000
Consumer lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	69,000	69,000
Consumer lending | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	69,000	69,000
Consumer lending | Other Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0
Consumer lending | HELOCs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	69,000	69,000
Consumer lending | HELOCs | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	69,000	69,000
Consumer lending | HELOCs | Other Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0
Consumer lending | Total residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	69,000	69,000
Consumer lending | Total residential mortgage | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	69,000	69,000
Consumer lending | Total residential mortgage | Other Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 0	$ 0