Loans Receivable and Allowance for Credit Losses (Loans Modifications) (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025	Sep. 30, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 22,422	$ 63,255
Total Principal	332		$ 48,881
Total Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			1,737
30 To 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			491
Current [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	332		46,653
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	3,018	1,554
Total Principal	332		168
Residential [Member] \| Total Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			168
Residential [Member] \| Current [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	332
Commercial & Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	17,491	52,159
Total Principal			25,643
Commercial & Multi-family [Member] \| Current [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			25,643
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 1,724	3,725
Total Principal			2,006
Commercial Business [Member] \| Total Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			920
Commercial Business [Member] \| Current [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			1,086
Business Express [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans		$ 626
Total Principal			21,064
Business Express [Member] \| Total Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			649
Business Express [Member] \| 30 To 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			491
Business Express [Member] \| Current [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans			$ 19,924