Loans Receivable and Allowance for Credit Losses - Payment Status Recorded Investment (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	$ 100,852
Current Accruing Loans
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	88,272
30 - 89 Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	7,591
90+ Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	4,989
Commercial lending
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	93,512
Commercial lending | Current Accruing Loans
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	81,523
Commercial lending | 30 - 89 Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	7,000
Commercial lending | 90+ Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	4,989
Commercial lending | Commercial and industrial (“C&I”)
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	60,195
Commercial lending | Commercial and industrial (“C&I”) | Current Accruing Loans
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	48,206
Commercial lending | Commercial and industrial (“C&I”) | 30 - 89 Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	7,000
Commercial lending | Commercial and industrial (“C&I”) | 90+ Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	4,989
Commercial lending | CRE
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	33,317
Commercial lending | CRE | Current Accruing Loans
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	33,317
Commercial lending | CRE | 30 - 89 Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	0
Commercial lending | CRE | 90+ Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	0
Consumer lending
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	7,340
Consumer lending | Current Accruing Loans
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	6,749
Consumer lending | 30 - 89 Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	591
Consumer lending | 90+ Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	0
Consumer lending | Real estate loan | Single-family residential
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	5,636
Consumer lending | Real estate loan | Current Accruing Loans | Single-family residential
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	5,045
Consumer lending | Real estate loan | 30 - 89 Days Past Due | Single-family residential
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	591
Consumer lending | Real estate loan | 90+ Days Past Due | Single-family residential
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	0
Consumer lending | HELOCs
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	1,704
Consumer lending | HELOCs | Current Accruing Loans
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	1,704
Consumer lending | HELOCs | 30 - 89 Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	0
Consumer lending | HELOCs | 90+ Days Past Due
Financing Receivable Allowance for Credit Losses
Financing Receivable, Modified, Accumulated	$ 0