Represents the number of real estate investments dissolved.

No definition available.

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The number of full service retail banking offices at period end.

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Face amount or stated value per share of common stock.

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The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration.

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Amount at par value of financing receivable purchased with credit deterioration.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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No definition available.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Amount of unrecognized tax benefits.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Feb. 01, 2021 $ / shares shares	Sep. 30, 2021 item	Dec. 31, 2021 USD ($) segment item $ / shares	Jan. 01, 2021 USD ($)	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01		$ 0.01		$ 0.01
Common stock converted into right to receive shares (in shares) \| shares	0.6480
Preferred stock, Series A, par value (in dollars per share) \| $ / shares	$ 0.01		$ 0.01		$ 0.01
Number of branch locations \| item			60
Number Of Real Estate Investments Dissolved \| item		2
Operating right-of-use assets			$ 64,258		$ 33,898		$ 41,600
Operating lease liabilities			66,103		39,874		$ 41,600
Unrecognized Tax Benefits			$ 0		0
Number of Reportable Segments \| segment			1
Number of Operating Segments \| segment			1
Allowance for credit losses			$ 83,853		41,461	$ 28,441		$ 21,782
Collectively evaluated for impairment			8,980,000		5,604,975
Collectively evaluated for impairment, allowance			41,400		34,987
Individually evaluated for impairment			51,400		17,069
Individually evaluated for impairment, allowance			22,300		6,474
Pooled PCD loans, allowance for credit loss			6,200
Retained earnings			$ 654,726		600,641
Core deposits
Intangible Asset Useful Life			10 years
Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses					(3,919)
Maximum \| Furniture Fixtures And Equipment [Member]
Property Plant and Equipment Useful Life			10 years
Minimum \| Furniture Fixtures And Equipment [Member]
Property Plant and Equipment Useful Life			3 years
Accounting Standards Update 2016-13 \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses			$ (3,900)
Reserve for unfunded commitments			1,400
Retained earnings				$ 1,700
PCD loans
Individually evaluated for impairment			75,200
Individually evaluated for impairment, allowance			13,900
Pooled PCD loans			138,300
One-to-four family residential and cooperative/condominium apartment
Allowance for credit losses			5,932		644	269		198
Collectively evaluated for impairment					184,989
Collectively evaluated for impairment, allowance					644
One-to-four family residential and cooperative/condominium apartment \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses					1,048
Multifamily residential and residential mixed-use
Allowance for credit losses			7,816		17,016	10,142		13,446
Collectively evaluated for impairment					2,756,880
Collectively evaluated for impairment, allowance					17,016
Individually evaluated for impairment					1,863
Multifamily residential and residential mixed-use \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses					(8,254)
Commercial real estate ("CRE")
Allowance for credit losses			29,166		9,059	3,900		3,777
Collectively evaluated for impairment					1,875,463
Collectively evaluated for impairment, allowance					9,059
Individually evaluated for impairment					2,704
Commercial real estate ("CRE") \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses					4,849
Commercial and Industrial ("C&I") Loans
Allowance for credit losses			35,331		12,737	12,870		3,946
Collectively evaluated for impairment					629,031
Collectively evaluated for impairment, allowance					6,263
Individually evaluated for impairment					12,502
Individually evaluated for impairment, allowance					6,474
Commercial and Industrial ("C&I") Loans \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses					(1,935)
Other Loans
Allowance for credit losses			$ 751		12	$ 16		$ 18
Collectively evaluated for impairment					2,316
Collectively evaluated for impairment, allowance					12
Other Loans \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses					$ (8)