Loans (Loans Outstanding By Class Of Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	$ 3,335,547	$ 3,105,036
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	108,049	90,386
SBA Paycheck Protection Program [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	4,427	30,534
Commercial Mortgages [Member] | Multifamily Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	959,242	864,207
Commercial Mortgages [Member] | Other Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	772,922	700,872
Commercial Mortgages [Member] | Owner-occupied Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	216,157	171,533
Residential Mortgages [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	1,273,536
Residential Mortgages [Member] | Closed-end [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	1,228,607	1,202,374
Residential Mortgages [Member] | Revolving Home Equity [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	44,929	44,139
Consumer And Other [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans outstanding	$ 1,214	$ 991