Nature of Business and Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands		3 Months Ended								12 Months Ended
	Jul. 10, 2020 MortgageOffice BranchOffice	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) BranchLease	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2022 USD ($)	Dec. 31, 2019 USD ($)
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	13
Number of branch mortgage loan offices | MortgageOffice	6
Provision for loan losses (Note 5)		$ 12,641	$ 9,330	$ 817	$ 1,258	$ 873	$ 572	$ 586	$ 686	$ 24,046	$ 2,717	$ 2,443
Minimum collection percentage of securities required to be considered as a maturity										85.00%
Period of historical loss experience to estimate allowance for loan losses										48 months
Present value of lease payments										2.50%
Percentage of largest amount of tax benefits likely to realize										50.00%
Percentage of employee discretionary matching, profit sharing and safe harbor contributions, maximum										4.00%
Number of leased branches | BranchLease										15
Right of use asset		33,423								$ 33,423			$ 36,200
Operating lease liabilities		34,532								34,532			$ 36,700
Decrease the allowances for credit loss		$ 34,592				16,352				$ 34,592	16,352	14,870		$ 12,329
ASU 2016-02
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]		true								true
Change in Accounting Principle, Accounting Standards Update, Adoption Date		Jan. 01, 2022								Jan. 01, 2022
ASU 2016-13
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Allownaces to held-to-maturity securties		$ 700								$ 700
Decrease the allowances for credit loss		31,500								31,500
Construction Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Provision for loan losses (Note 5)										659	204	38
Decrease the allowances for credit loss		2,683				2,024				$ 2,683	2,024	1,820		1,782
Commercial Real Estate Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Period on which interest rate is adjusted										5 years
Business Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Provision for loan losses (Note 5)										$ (280)	(32)	(95)
Decrease the allowances for credit loss		$ 120				$ 306				$ 120	$ 306	$ 254		$ 254
Minimum
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Percentage of loan to value ratio										65.00%
Minimum | Construction Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term										6 months
Minimum | Commercial Real Estate Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan amortization period										15 years
Balloon payments period of loan										10 years
Minimum | Business Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term										5 years
Maximum
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Percentage of loan to value ratio										90.00%
Maximum | Construction Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term										2 years
Maximum | Commercial Real Estate Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Percentage of loan to value ratio										75.00%
Loan amortization period										30 years
Balloon payments period of loan										15 years
Maximum | Business Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term										7 years
COVID-19
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Provision for loan losses (Note 5)										$ 24,000
Mortgage World Bankers Inc
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 10, 2020
Business Acquisition, Name of Acquired Entity	Mortgage World
Bronx
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	4
Manhattan
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	2
Queens
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	3
Number of branch mortgage loan offices | MortgageOffice	2
Brooklyn
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	3
Number of branch mortgage loan offices | MortgageOffice	1
Union City
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	1
New York and Bergenfield
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch mortgage loan offices | MortgageOffice	1