Loans and Allowance for Credit Losses- Composition of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loans	$ 6,925,758	$ 6,633,866
Net unamortized premiums and unearned loan fees	9,011	4,239
Aggregate outstanding loans	6,934,769	6,638,105
Multi-Family Residential
Loans	2,601,384	2,517,026
Commercial Real Estate
Loans	1,913,040	1,775,629
One-To-Four Family - Mixed Used Property
Loans	554,314	571,795
One-To-Four Family - Residential
Loans	241,246	276,571
Construction Portfolio Segment
Loans	70,951	59,761
Aggregate outstanding loans	70,824	59,473
Small Business Administration
Loans	23,275	93,811
Small Business Administration \| Small Business Administration, Cares Act, Paycheck Protection Program
Loans	5,200	77,400
Commercial Business and Other
Loans	$ 1,521,548	$ 1,339,273

Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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