Amalgamated Financial (AMAL) 10-Q 9 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 09, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-40136
Entity Registrant Name	Amalgamated Financial Corp.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-2757101
Entity Address, Address Line One	275 Seventh Avenue
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10001
City Area Code	212
Local Phone Number	255-6200
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	AMAL
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Smaller Reporting Company	false
Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,096,896
Entity Central Index Key	0001823608
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 8,488	$ 7,736
Interest-bearing deposits in banks	681,758	31,033
Total cash and cash equivalents	690,246	38,769
Securities:
Available for sale, at fair value (amortized cost of $1,936,830 and $1,513,409, respectively)	1,955,502	1,539,862
Held-to-maturity (fair value of $727,161 and $502,425, respectively)	725,076	494,449
Loans held for sale	6,156	11,178
Loans receivable, net of deferred loan origination costs (fees)	3,123,329	3,488,895
Allowance for loan losses	(35,863)	(41,589)
Loans receivable, net	3,087,466	3,447,306
Resell agreements	130,434	154,779
Accrued interest and dividends receivable	23,337	23,970
Premises and equipment, net	12,447	12,977
Bank-owned life insurance	106,736	105,888
Right-of-use lease asset	34,819	36,104
Deferred tax asset	24,672	36,079
Goodwill	12,936	12,936
Other intangible assets	4,453	5,359
Equity investments	5,614	11,735
Other assets	39,871	47,240
Total assets	6,859,765	5,978,631
Liabilities
Deposits	6,224,506	5,338,711
Operating leases	50,416	53,173
Other liabilities	28,453	50,926
Total liabilities	6,303,375	5,442,810
Commitments and contingencies	0	0
Stockholders’ equity
Common stock, par value $0.01 per share (70,000,000 shares authorized; 31,096,896 and 31,049,525 shares issued and outstanding, respectively)	311	310
Additional paid-in capital	297,904	300,989
Retained earnings	246,665	217,213
Accumulated other comprehensive income (loss), net of income taxes	11,377	17,176
Total Amalgamated Financial Corp. stockholders' equity	556,257	535,688
Noncontrolling interests	133	133
Total stockholders' equity	556,390	535,821
Total liabilities and stockholders’ equity	$ 6,859,765	$ 5,978,631

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Available for sale, amortized cost	$ 1,936,830	$ 1,513,409
Held-to-maturity, fair value	$ 727,161	$ 502,425
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	70,000,000	70,000,000
Common stock, shares issued (in shares)	31,096,896	31,049,525
Common stock, shares outstanding (in shares)	31,096,896	31,049,525

Consolidated Statements of Inco

Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
INTEREST AND DIVIDEND INCOME
Loans	$ 29,915	$ 35,602	$ 91,180	$ 106,440
Securities	14,612	11,473	39,876	35,772
Federal Home Loan Bank of New York stock	43	56	132	190
Interest-bearing deposits in banks	230	152	451	631
Total interest and dividend income	44,800	47,283	131,639	143,033
INTEREST EXPENSE
Deposits	1,413	2,049	4,416	8,645
Borrowed funds	0	0	0	27
Total interest expense	1,413	2,049	4,416	8,672
NET INTEREST INCOME	43,387	45,234	127,223	134,361
Provision for (recovery of) loan losses	(2,276)	3,394	(3,855)	20,202
Net interest income after provision for loan losses	45,663	41,840	131,078	114,159
NON-INTEREST INCOME
Trust Department fees	3,353	3,622	10,471	11,688
Service charges on deposit accounts	2,466	2,130	6,941	6,391
Bank-owned life insurance	539	1,227	1,858	2,722
Gain (loss) on sale of securities	413	619	755	1,605
Gain (loss) on sale of loans, net	280	903	1,706	1,200
Gain (loss) on other real estate owned, net	0	(176)	(407)	(482)
Equity method investments	(483)	4,297	(5,720)	5,586
Other	134	154	424	1,855
Total non-interest income	6,702	12,776	16,028	30,565
NON-INTEREST EXPENSE
Compensation and employee benefits	17,482	17,547	52,485	52,338
Occupancy and depreciation	3,440	9,908	10,293	19,655
Professional fees	2,348	2,202	9,219	7,173
Data processing	4,521	2,916	10,848	8,157
Office maintenance and depreciation	887	863	2,362	2,538
Amortization of intangible assets	301	342	905	1,027
Advertising and promotion	1,023	1,172	2,248	2,511
Other	3,032	2,927	8,863	7,817
Total non-interest expense	33,034	37,877	97,223	101,216
Income before income taxes	19,331	16,739	49,883	43,508
Income tax expense (benefit)	4,915	4,259	12,870	11,109
Net income	14,416	12,480	37,013	32,399
Net income attributable to Amalgamated Financial Corp.	$ 14,416	$ 12,480	$ 37,013	$ 32,399
Earnings per common share - basic (in dollars per share)	$ 0.46	$ 0.40	$ 1.19	$ 1.04
Earnings per common share - diluted (in dollars per share)	$ 0.46	$ 0.40	$ 1.17	$ 1.04

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 14,416	$ 12,480	$ 37,013	$ 32,399
Other comprehensive income (loss), net of taxes:
Change in total obligation for postretirement benefits and for prior service credit and for other benefits	94	73	(171)	220
Net unrealized gains (losses) on securities available for sale:
Unrealized holding gains (losses)	(5,640)	11,706	(7,021)	18,149
Reclassification adjustment for losses (gains) realized in income	(421)	(620)	(760)	(1,604)
Net unrealized gains (losses) on securities available for sale	(6,061)	11,086	(7,781)	16,545
Other comprehensive income (loss), before tax	(5,967)	11,159	(7,952)	16,765
Income tax benefit (expense)	1,629	(3,106)	2,153	(4,667)
Total other comprehensive income (loss), net of taxes	(4,338)	8,053	(5,799)	12,098
Total comprehensive income (loss), net of taxes	$ 10,078	$ 20,533	$ 31,214	$ 44,497

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders’ Equity (unaudited) - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest
Beginning balance at Dec. 31, 2019	$ 490,544	$ 490,410	$ 315	$ 305,738	$ 181,132	$ 3,225	$ 134
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	32,399	32,399			32,399
Cash dividend	(7,575)	(7,575)			(7,575)
Redemption of AREMCO class B shares	(5)	(4)			(4)		(1)
Shares issued under stock-based incentive plan	16	16		16
Repurchase of shares	(7,001)	(7,001)	(5)	(6,996)
Exercise of stock options, net of repurchases	(155)	(155)		(155)
Stock-based compensation expense	2,176	2,176		2,176
Other comprehensive income (loss), net of taxes	12,098	12,098				12,098
Ending balance at Sep. 30, 2020	522,497	522,364	310	300,779	205,952	15,323	133
Beginning balance at Jun. 30, 2020	503,702	503,568	310	299,997	195,991	7,270	134
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,480	12,480			12,480
Cash dividend	(2,515)	(2,515)			(2,515)
Redemption of AREMCO class B shares	(5)	(4)			(4)		(1)
Stock-based compensation expense	782	782		782
Other comprehensive income (loss), net of taxes	8,053	8,053				8,053
Ending balance at Sep. 30, 2020	522,497	522,364	310	300,779	205,952	15,323	133
Beginning balance at Dec. 31, 2020	535,821	535,688	310	300,989	217,213	17,176	133
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	37,013	37,013			37,013
Cash dividend	(7,561)	(7,561)			(7,561)
Repurchase of shares	(2,920)	(2,920)	(1)	(2,919)
Exercise of stock options, net of repurchases	(1,451)	(1,451)	2	(1,453)
Restricted stock unit vesting, net of repurchases	(90)	(90)		(90)
Stock-based compensation expense	1,377	1,377		1,377
Other comprehensive income (loss), net of taxes	(5,799)	(5,799)				(5,799)
Ending balance at Sep. 30, 2021	556,390	556,257	311	297,904	246,665	11,377	133
Beginning balance at Jun. 30, 2021	548,211	548,078	311	297,283	234,769	15,715	133
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,416	14,416			14,416
Cash dividend	(2,520)	(2,520)			(2,520)
Exercise of stock options, net of repurchases	(2)	(2)		(2)
Stock-based compensation expense	623	623		623
Other comprehensive income (loss), net of taxes	(4,338)	(4,338)				(4,338)
Ending balance at Sep. 30, 2021	$ 556,390	$ 556,257	$ 311	$ 297,904	$ 246,665	$ 11,377	$ 133

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders’ Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Dividends (in dollars per share)	$ 0.08	$ 0.08	$ 0.24	$ 0.24

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income		$ 37,013	$ 32,399
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		2,746	5,330
Amortization of intangible assets		905	1,027
Deferred income tax expense (benefit)		5,373	(405)
Provision for (recovery of) loan losses		(3,855)	20,202
Stock-based compensation expense		1,377	2,176
Net amortization (accretion) on loan fees, costs, premiums, and discounts		2,407	1,906
Net amortization on securities		2,984	1,144
OTTI loss (gain) recognized in earnings		(5)	1
Net loss (income) from equity method investments		5,720	(5,586)
Net loss (gain) on sale of securities available for sale		(755)	(1,605)
Net loss (gain) on sale of loans		(1,706)	(1,200)
Net loss (gain) on sale of other real estate owned		407	482
Net loss (gain) on owned property held for sale		0	(1,394)
Net (gain) on redemption of bank-owned life insurance		(266)	(1,594)
Proceeds from sales of loans held for sale		103,186	80,553
Originations of loans held for sale		(96,478)	(105,450)
Decrease (increase) in cash surrender value of bank-owned life insurance		(1,592)	(1,128)
Decrease (increase) in accrued interest and dividends receivable		633	(3,650)
Decrease (increase) in other assets	[1]	6,499	5,064
Increase (decrease) in accrued expenses and other liabilities	[2]	(11,193)	(8,896)
Net cash provided by operating activities		53,400	19,376
CASH FLOWS FROM INVESTING ACTIVITIES
Originations or purchase of loans, net of principal repayments		361,309	(137,972)
Purchase of securities available for sale		(874,116)	(587,991)
Purchase of securities held to maturity		(315,969)	(184,840)
Proceeds from sales of securities available for sale		94,899	94,698
Maturities, principal payments and redemptions of securities available for sale		349,328	201,541
Maturities, principal payments and redemptions of securities held to maturity		82,505	35,662
Decrease (increase) in resell agreements		24,345	(103,222)
Purchase of equity method investments		626
Purchase of equity method investments			(13,770)
Decrease (increase) of FHLBNY stock, net		214	3,105
Purchases of premises and equipment		(2,216)	(1,023)
Proceeds from redemption of bank-owned life insurance		1,010	2,934
Proceeds from sale of owned assets		0	1,613
Proceeds from sale of other real estate owned		2,275	20
Net cash (used in) provided by investing activities		(275,790)	(689,245)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in deposits		885,795	1,380,018
Net increase (decrease) in FHLB advances		0	(75,000)
Issuance of common stock		0	16
Redemption of AREMCO class B shares		0	(5)
Repurchase of shares		(2,920)	(7,001)
Dividends paid		(7,467)	(7,481)
Exercise of stock options, net		(1,451)	(155)
Restricted stock unit vesting, net		(90)	0
Net cash provided by financing activities		873,867	1,290,392
Increase (decrease) in cash, cash equivalents, and restricted cash		651,477	620,523
Cash, cash equivalents, and restricted cash at beginning of year		38,769	122,538
Cash, cash equivalents, and restricted cash at end period		690,246	743,061
Supplemental disclosures of cash flow information:
Interest paid during the period		4,626	9,600
Income taxes paid during the period		5,335	9,688
Supplemental non-cash investing activities:
Loans transferred to other real estate owned		2,682	0
Purchase (sale) of securities available for sale, net not settled		$ 4,999	$ (27,560)
[1]	Includes $1.3 million and $10.4 million of right of use asset amortization for the respective periods
[2]	Includes $0.9 million and $1.5 million accretion of operating lease liabilities for the respective periods

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (unaudited) (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Statement of Cash Flows [Abstract]
Right of use asset amortization	$ 1.3	$ 10.4
Accretion of operating lease liabilities	$ 0.9	$ 1.5

BASIS OF PRESENTATION AND CONSO

BASIS OF PRESENTATION AND CONSOLIDATION	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
BASIS OF PRESENTATION AND CONSOLIDATION	BASIS OF PRESENTATION AND CONSOLIDATION Holding Company Reorganization On March 1, 2021 (the “Effective Date”), Amalgamated Financial Corp., a Delaware public benefit corporation (the “Company”) acquired all of the outstanding stock of Amalgamated Bank, a New York state-chartered bank (the “Bank”), in a statutory share exchange transaction (the “Reorganization”) effected under New York law and in accordance with the terms of a Plan of Acquisition dated September 4, 2020 (the “Agreement”). Pursuant to the Reorganization, the Bank became the sole subsidiary of the Company, the Company became the holding company for the Bank and the stockholders of the Bank became stockholders of the Company. Prior to the Effective Date of the Reorganization, the Company conducted no operations other than obtaining regulatory approval for the Reorganization. Accordingly, there has been no significant financial activity at the parent company level as of September 30, 2021. In this discussion, unless the context indicates otherwise, references to “we,” “us,” and “our” refer to the Company and the Bank. However, if the discussion relates to a period before the Effective Date, the terms refer only to the Bank. Pending Acquisition On September 22, 2021, the Company announced it has entered into a definitive agreement to acquire Amalgamated Investments Company (“AIC“), the holding company for Amalgamated Bank of Chicago (“ABOC”) in an all-cash transaction for approximately $98.1 million, which includes an earnout of up to $1.1 million. The acquisition, which is expected to close late in the fourth quarter of 2021, is subject to customary closing conditions, including regulatory approval and the approval of AIC's shareholders. Approval of the acquisition by the Company's stockholders is not required for the transaction. Segment Information Public companies are required to report certain financial information about significant revenue-producing segments of the business for which such information is available and utilized by the chief operating decision maker. Substantially all of our operations occur through the Bank and involve the delivery of loan and deposit products to customers. Management makes operating decisions and assesses performance based on an ongoing review of its banking operation, which constitutes our only operating segment for financial reporting purposes. We do not consider our trust and investment management business as a separate segment. Basis of Accounting and Changes in Significant Accounting Policies The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America, or GAAP and predominant practices within the banking industry. The Company uses the accrual basis of accounting for financial statement purposes. The accompanying unaudited consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries and its majority-owned subsidiaries and have been prepared in accordance with instructions to Form 10-Q and therefore do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with GAAP. All significant inter-company transactions and balances are eliminated in consolidation. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations as of the dates and for the interim periods presented have been included. A more detailed description of our accounting policies is included in the Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Annual Report”). There have been no significant changes to our accounting policies, or the estimates made pursuant to those policies as described in our 2020 Annual Report. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes appearing in the 2020 Annual Report. Reclassifications

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	9 Months Ended
	Sep. 30, 2021
Accounting Changes and Error Corrections [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS	RECENT ACCOUNTING PRONOUNCEMENTS Accounting Standards Effective in 2021 and onward In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326) – Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 significantly changes the impairment model for most financial assets that are measured at amortized cost and certain other instruments from an incurred loss model to an expected loss model and provides for recording credit losses on available for sale debt securities through an allowance account. ASU 2016-13 also requires certain incremental disclosures. In October 2019, the FASB voted to extend the adoption date for entities eligible to be smaller reporting companies, public business entities ("PBEs") that are not SEC filers, and entities that are not PBEs from January 1, 2020 to January 1, 2023. Based on our election as an Emerging Growth Company under the Jumpstart Our Business Startups Act to use the extended transition period for complying with any new or revised financial accounting standards, we currently anticipate a January 1, 2023 adoption date. In preparation, we have performed work in assessing and enhancing the technology environment and related data needs and availability. Additionally, a Management Committee comprised of members from multiple departments has been established to monitor our progress towards adoption. As adoption will require the implementation of significant changes to the existing credit loss estimation model and is dependent on the economic forecast, and given the length of time before our adoption date, evaluating the overall impact of the ASU on our Consolidated Financial Statements is not yet determinable. On January 7, 2021, the FASB has issued Accounting Standards Update ("ASU") No. 2021-01, Reference Rate Reform (Topic 848): Scope. The new guidance amends the scope of ASU 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which was aimed at easing the potential accounting burden expected when global capital markets move away from the London Interbank Offered Rate ("LIBOR") (the benchmark interest rate banks use to make short-term loans to each other) and provided temporary, optional expedients and exceptions for applying accounting guidance to contract modifications and hedging relationships, subject to meeting certain criteria, that reference LIBOR or another reference rate expected to be discontinued. As the majority of our securities tied to LIBOR are expected to transition to the Secured Overnight Financing Rate ("SOFR") or pay off before the transition date and given that we do not have a substantial amount of commercial loans or any derivative transactions tied to LIBOR, the Adoption of ASU 2021-01 is not expected to have a material impact on our operating results or financial condition.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The Company records unrealized gains and losses, net of taxes, on securities available for sale in other comprehensive income (loss) in the Consolidated Statements of Changes in Stockholders’ Equity. Gains and losses on securities available for sale are reclassified to operations as the gains or losses are recognized. Other-than-temporary impairment (“OTTI”) losses on debt securities are reflected in earnings as realized losses to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income (loss). The Company also recognizes as a component of other comprehensive income (loss) the actuarial gains or losses as well as the prior service costs or credits that arise during the period from post-retirement benefit plans. Other comprehensive income (loss) components and related income tax effects were as follows: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (In thousands) Change in obligation for postretirement benefits and for prior service credit $ 53 $ 55 $ 159 $ 165 Change in obligation for other benefits 41 18 (330) 55 Change in total obligation for postretirement benefits and for prior service credit and for other benefits $ 94 $ 73 $ (171) $ 220 Income tax effect (26) (20) 29 (61) Net change in total obligation for postretirement benefits and prior service credit and for other benefits 68 53 (142) 159 Unrealized holding gains (losses) on available for sale securities $ (5,640) $ 11,706 $ (7,021) $ 18,149 Reclassification adjustment for losses (gains) realized in income (421) (620) (760) (1,604) Change in unrealized gains (losses) on available for sale securities (6,061) 11,086 (7,781) 16,545 Income tax effect 1,655 (3,086) 2,124 (4,606) Net change in unrealized gains (losses) on available for sale securities (4,406) 8,000 (5,657) 11,939 Total $ (4,338) $ 8,053 $ (5,799) $ 12,098 The following is a summary of the accumulated other comprehensive income (loss) balances, net of income taxes: Balance as of January 1, Current Income Tax Balance as of September 30, 2021 (In thousands) Unrealized gains (losses) on benefits plans $ (2,056) $ (171) $ 29 $ (2,198) Unrealized gains (losses) on available for sale securities 19,232 (7,781) 2,124 13,575 Total $ 17,176 $ (7,952) $ 2,153 $ 11,377 The following represents the reclassifications out of accumulated other comprehensive income (loss): Three Months Ended Nine Months Ended Affected Line Item in the Consolidated Statements of Income 2021 2020 2021 2020 (In thousands) Realized gains (losses) on sale of available for sale securities $ 413 $ 619 $ 755 $ 1,605 Gain (loss) on sale of investment securities available for sale, net Recognized gains (losses) on OTTI securities 8 — 5 (1) Non-Interest Income - other Income tax expense (benefit) 114 173 207 447 Income tax expense (benefit) Total reclassifications, net of income tax $ 307 $ 446 $ 553 $ 1,157 Prior service credit on pension plans and other postretirement benefits $ 7 $ 7 $ 21 $ 21 Compensation and employee benefits Income tax expense (benefit) (2) (2) (6) (6) Income tax expense (benefit) Total reclassifications, net of income tax $ 5 $ 5 $ 15 $ 15 Total reclassifications, net of income tax $ 312 $ 451 $ 568 $ 1,172

INVESTMENT SECURITIES

INVESTMENT SECURITIES	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES The amortized cost and fair value of investment securities available for sale and held to maturity as of September 30, 2021 are as follows: September 30, 2021 Amortized Gross Gross Fair (In thousands) Available for sale: Mortgage-related: GSE residential certificates $ 4,205 $ 197 $ — $ 4,402 GSE residential CMOs 419,019 7,769 (994) 425,794 GSE commercial certificates & CMO 384,271 7,600 (670) 391,201 Non-GSE residential certificates 39,785 55 (104) 39,736 Non-GSE commercial certificates 57,285 79 (304) 57,060 904,565 15,700 (2,072) 918,193 Other debt: U.S. Treasury 200 1 — 201 ABS 944,426 4,820 (896) 948,350 Trust preferred 14,630 — (440) 14,190 Corporate 73,009 1,636 (77) 74,568 1,032,265 6,457 (1,413) 1,037,309 Total available for sale $ 1,936,830 $ 22,157 $ (3,485) $ 1,955,502 Held to maturity: Mortgage-related: GSE commercial certificates $ 12,467 $ — $ (413) $ 12,054 GSE residential certificates 446 24 — 470 Non GSE commercial certificates 10,346 — (182) 10,164 23,259 24 (595) 22,688 Other debt: PACE Assessments 627,195 1,098 — 628,293 Municipal 71,522 2,158 (599) 73,081 Other 3,100 — (1) 3,099 701,817 3,256 (600) 704,473 Total held to maturity $ 725,076 $ 3,280 $ (1,195) $ 727,161 As of September 30, 2021, available for sale securities with a fair value of $917.4 million were pledged with $22.0 million held-to-maturity securities being pledged. The majority of the securities were pledged to the Federal Home Loan Bank of New York (“FHLB”) to secure outstanding advances, letters of credit and to provide additional borrowing potential. In addition, securities were pledged to provide capacity to borrow from the Federal Reserve Bank and to collateralize municipal deposits. The amortized cost and fair value of investment securities available for sale and held to maturity as of December 31, 2020 are as follows: December 31, 2020 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale: Mortgage-related: GSE residential certificates $ 12,977 $ 322 $ — $ 13,299 GSE residential CMOs 353,783 12,690 (52) 366,421 GSE commercial certificates & CMO 421,488 11,548 (422) 432,614 Non-GSE residential certificates 33,120 281 (17) 33,384 Non-GSE commercial certificates 45,179 112 (323) 44,968 866,547 24,953 (814) 890,686 Other debt: U.S. Treasury 200 3 — 203 ABS 595,062 4,356 (1,872) 597,546 Trust preferred 14,627 — (854) 13,773 Corporate 36,973 683 (2) 37,654 Other — — — — 646,862 5,042 (2,728) 649,176 Total available for sale 1,513,409 29,995 (3,542) 1,539,862 Held to maturity: Mortgage-related: GSE residential certificates $ 611 $ 38 $ — $ 649 Non GSE commercial certificates 212 15 — 227 823 53 — 876 Other debt: PACE Assessments 421,036 4,870 — 425,906 Municipal 67,490 3,019 — 70,509 Other 5,100 34 — 5,134 493,626 7,923 — 501,549 Total held to maturity $ 494,449 $ 7,976 $ — $ 502,425 The following table summarizes the amortized cost and fair value of debt securities available for sale and held to maturity, exclusive of mortgage-backed securities, by their contractual maturity as of September 30, 2021. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty: Available for Sale Held to Maturity Amortized Fair Value Amortized Fair Value (In thousands) Due within one year $ 200 $ 201 $ 1,100 $ 1,100 Due after one year through five years 21,000 21,352 2,000 1,999 Due after five years through ten years 364,701 365,646 — — Due after ten years 646,364 650,110 698,717 701,374 $ 1,032,265 $ 1,037,309 $ 701,817 $ 704,473 Three Months Ended, Nine Months Ended, September 30, 2021 September 30, 2020 September 30, 2021 September 30, 2020 (In thousands) Proceeds $ 31,603 $ 42,277 $ 94,899 $ 94,698 Realized gains $ 477 $ 856 $ 1,040 $ 2,111 Realized losses (64) (237) (285) (506) Net realized gains (losses) $ 413 $ 619 $ 755 $ 1,605 The following summarizes the fair value and unrealized losses for those available for sale and held to maturity securities as of September 30, 2021 and December 31, 2020, respectively, segregated between securities that have been in an unrealized loss position for less than twelve months and those that have been in a continuous unrealized loss position for twelve months or longer at the respective dates: September 30, 2021 Less Than Twelve Months Twelve Months or Longer Total (In thousands) Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Available for sale: Mortgage-related: GSE residential CMOs $ 140,726 $ (994) $ — $ — $ 140,726 $ (994) GSE commercial certificates & CMO 63,645 (567) 170,426 (103) 234,071 (670) Non-GSE residential certificates 35,547 (104) — — 35,547 (104) Non-GSE commercial certificates 24,721 (294) 10,966 (10) 35,687 (304) Other debt: ABS 183,785 (623) 74,047 (273) 257,832 (896) Trust preferred — — 14,190 (440) 14,190 (440) Corporate 16,923 (77) — — 16,923 (77) Total available for sale $ 465,347 $ (2,659) $ 269,629 $ (826) $ 734,976 $ (3,485) Held to maturity: Mortgage-related: GSE commercial certificates $ 12,054 $ (413) $ — $ — $ — $ 12,054 $ (413) Non GSE commercial certificates 9,970 (182) — — — 9,970 (182) Other debt: Municipal 20,164 (599) — — 20,164 (599) Other 3,099 (1) — — 3,099 (1) Total held to maturity $ 45,287 $ (1,195) $ — $ — $ 45,287 $ (1,195) December 31, 2020 Less Than Twelve Months Twelve Months or Longer Total (In thousands) Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Mortgage-related: GSE residential CMOs $ 31,106 $ (35) $ 12,910 $ (17) $ 44,016 $ (52) GSE commercial certificates & CMO 116,667 (287) 75,126 (135) 191,793 (422) Non-GSE residential certificates 2,138 (9) 3,077 (8) 5,215 (17) Non-GSE commercial certificates 47 — 29,207 (323) 29,254 (323) Other debt: ABS 3,010 (1) 298,410 (1,871) 301,420 (1,872) Trust preferred — — 13,773 (854) 13,773 (854) Corporate 6,998 (2) — — 6,998 (2) $ 159,966 $ (334) $ 432,503 $ (3,208) $ 592,469 $ (3,542) The temporary impairment of fixed income securities is primarily attributable to changes in overall market interest rates and/or changes in credit spreads since the investments were acquired. In general, as market interest rates rise and/or credit spreads widen, the fair value of fixed rate securities will decrease, as market interest rates fall and/or credit spreads tighten, the fair value of fixed rate securities will increase. Management considers that the temporary impairment of the Company’s investments in trust preferred securities (“TruPs”) as of September 30, 2021 is primarily due to a widening of credit spreads since the time these investments were acquired, as well as market uncertainty for this class of investments. All of the TruPs were rated investment grade by not less than three nationally recognized statistical rating organization’s (“NRSROs”). All of the issues are current as to their dividend payments and management is not aware of a decision of any trust preferred issuer to exercise its option to defer dividend payments. As of September 30, 2021, excluding GSE and U.S. Treasury securities and TruPs, discussed above, temporarily impaired securities totaled $380.0 million with an unrealized loss of $2.1 million. These securities were rated investment grade by at least one NRSRO with no ratings below investment grade. All issues were current as to their interest payments. We have had no losses on any PACE bonds and are not aware of any losses in the sector given the low LTV position. Management considers that the temporary impairment of these investments as of September 30, 2021 is primarily due to an increase in market spreads since the time these investments were acquired. With respect to the Company’s security investments that are temporarily impaired as of September 30, 2021, management does not intend to sell these investments and does not believe it will be necessary to do so before anticipated recovery. The Company expects to collect all amounts due according to the contractual terms of these investments. Therefore, the Company does not consider these securities to be other-than-temporarily impaired at September 30, 2021. None of these positions or other securities held in the portfolio or sold during the year were purchased with the intent of selling them or would otherwise be classified as trading securities under ASC No. 320, Investments – Debt Securities. During the three months ended September 30, 2021, the Company recorded $7.5 thousand OTTI, compared to a $0.3 thousand OTTI for the same period in 2020. For the nine months ended September 30, 2021, the Company recorded $4.8 thousand OTTI, compared to a $0.9 thousand OTTI f or the same period in 2020. Events which may cause material declines in the fair value of debt investments may include, but are not limited to, deterioration of credit metrics, higher incidences of default, worsening liquidity, worsening global or domestic economic conditions or adverse regulatory action. Management does not believe that there are any cases of unrecorded OTTI as of September 30, 2021; however, it is possible that the Company may recognize OTTI in future periods.

LOANS RECEIVABLE, NET

LOANS RECEIVABLE, NET	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
LOANS RECEIVABLE, NET	LOANS RECEIVABLE, NET Loans receivable are summarized as follows: September 30, December 31, (In thousands) Commercial and industrial $ 628,388 $ 677,192 Multifamily 826,143 947,177 Commercial real estate 346,996 372,736 Construction and land development 34,863 56,087 Total commercial portfolio 1,836,390 2,053,192 Residential real estate lending 1,032,947 1,238,697 Consumer and other 249,050 190,676 Total retail portfolio 1,281,997 1,429,373 Total loans receivable 3,118,387 3,482,565 Net deferred loan origination costs (fees) 4,942 6,330 Total loans receivable, net of deferred loan origination costs (fees) 3,123,329 3,488,895 Allowance for loan losses (35,863) (41,589) Total loans receivable, net $ 3,087,466 $ 3,447,306 The following table presents information regarding the quality of the Company’s loans as of September 30, 2021: 30-89 Days Non- 90 Days or Total Past Current Current Total Loans (In thousands) Commercial and industrial $ 7,710 $ 13,709 $ — $ 21,419 $ — $ 606,969 $ 628,388 Multifamily 3,689 6,079 — 9,768 — 816,375 826,143 Commercial real estate 20,000 4,023 — 24,023 — 322,973 346,996 Construction and land development — — — — — 34,863 34,863 Total commercial portfolio 31,399 23,811 — 55,210 — 1,781,180 1,836,390 Residential real estate lending 2,011 20,797 — 22,808 — 1,010,139 1,032,947 Consumer and other 1,971 886 — 2,857 — 246,193 249,050 Total retail portfolio 3,982 21,683 — 25,665 — 1,256,332 1,281,997 $ 35,381 $ 45,494 $ — $ 80,875 $ — $ 3,037,512 $ 3,118,387 The following table presents information regarding the quality of the Company’s loans as of December 31, 2020: 30-89 Days Past Due Non- Accrual 90 Days or More Delinquent and Still Accruing Interest Total Past Due Current and Not Accruing Interest Current Total Loans Receivable (In thousands) Commercial and industrial $ — $ 12,444 $ 1,404 $ 13,848 $ — $ 663,344 $ 677,192 Multifamily 3,590 9,575 — 13,165 — 934,012 947,177 Commercial real estate 10,574 3,433 — 14,007 — 358,729 372,736 Construction and land development 9,974 11,184 — 21,158 — 34,929 56,087 Total commercial portfolio 24,138 36,636 1,404 62,178 — 1,991,014 2,053,192 Residential real estate lending 19,526 23,280 — 42,806 376 1,195,515 1,238,697 Consumer and other 1,015 632 — 1,647 — 189,029 190,676 Total retail portfolio 20,541 23,912 — 44,453 376 1,384,544 1,429,373 $ 44,679 $ 60,548 $ 1,404 $ 106,631 $ 376 $ 3,375,558 $ 3,482,565 For a loan modification to be considered a troubled debt restructuring ("TDR") in accordance with ASC 310-40, both of the following conditions must be met: the borrower is experiencing financial difficulty, and the creditor has granted a concession (except for an “insignificant delay in payment”, defined as six months or less). Loans modified as TDRs are placed on non-accrual status until the Company determines that future collection of principal and interest is reasonably assured, which generally requires that the borrower demonstrate performance according to the restructured terms for a period of at least six months. The Company’s TDRs primarily involve rate reductions, forbearance of arrears or extension of maturity. TDRs are included in total impaired loans as of the respective date. On March 22, 2020, federal banking regulators issued an interagency statement that included guidance on their approach for the accounting of loan modifications in light of the economic impact of the COVID-19 pandemic. The guidance interprets current accounting standards and indicates that a lender can conclude that a borrower is not experiencing financial difficulty if short-term modifications are made in response to COVID-19, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant related to the loans in which the borrower is less than 30 days past due on its contractual payments at the time a modification program is implemented. The agencies confirmed in working with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief are not TDRs. On March 27, 2020, the Coronavirus Aid, Relief and Economic Security ("CARES") Act was enacted to help the nation’s economy recover from the COVID-19 pandemic. The CARES Act provided $2.2 trillion of economy-wide financial stimulus in the form of financial aid to individuals, businesses, nonprofit entities, states, and municipalities. Under Section 4022 of the CARES Act, a borrower with a federally backed mortgage loan that was experiencing a financial hardship due to COVID-19 may request a forbearance (i.e., payment deferral), regardless of delinquency status, for up to 180 days, which may be extended for an additional 180 days at the borrower’s request. Before this relief was set to expire on December 31, 2020, the Consolidated Appropriations Act was signed into law, which extended the relief granted under the CARES act to the earlier of January 1, 2022 or 60 days after the national emergency is terminated. During this relief period, no fees, penalties, or interest beyond those scheduled or calculated as if the borrower had made all contractual payments on time and in full will accrue. In addition, Section 4013 of the CARES Act provides temporary relief from the accounting and reporting requirements for TDRs regarding certain loan modifications related to COVID-19. Specifically, the CARES Act provides that a financial institution may elect to suspend the requirements under GAAP for certain loan modifications that would otherwise be categorized as a TDR. Modifications that qualify for this exception include a forbearance arrangement, an interest rate modification, a repayment plan, or any other similar arrangement that defers or delays the payment of principal or interest, that occurs for a loan that was not more than 30 days past due as of December 31, 2019. In accordance with interagency guidance and the CARES Act, short term deferrals granted due to the COVID-19 pandemic are not considered TDRs unless the borrower was experiencing financial difficulty prior to the pandemic. As of September 30, 2021, the Company had $16.7 million in loans remaining on a payment deferral program and still accruing interest, the majority of which represent two performing commercial loans requesting additional deferrals. The following table presents information regarding the Company’s TDRs as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Accruing Non- Accrual Total Accruing Non- Total Commercial and industrial $ 1,553 $ 11,149 $ 12,702 $ 1,648 $ 12,116 $ 13,764 Commercial real estate — 3,233 3,233 — 3,433 3,433 Construction and land development 7,476 — 7,476 — 2,682 2,682 Residential real estate lending 12,929 6,152 19,081 17,905 2,654 20,559 $ 21,958 $ 20,534 $ 42,492 $ 19,553 $ 20,885 $ 40,438 The following tables summarize the Company’s loan portfolio by credit quality indicator as of September 30, 2021: (In thousands) Pass Special Mention Substandard Doubtful Total Commercial and industrial $ 579,429 $ 22,655 $ 25,850 $ 454 $ 628,388 Multifamily 696,898 83,851 42,221 3,173 826,143 Commercial real estate 243,903 26,815 76,278 — 346,996 Construction and land development 27,387 — 7,476 — 34,863 Residential real estate lending 1,011,856 294 20,797 — 1,032,947 Consumer and other 248,164 — 886 — 249,050 Total loans $ 2,807,637 $ 133,615 $ 173,508 $ 3,627 $ 3,118,387 The following tables summarize the Company’s loan portfolio by credit quality indicator as of December 31, 2020: (In thousands) Pass Special Mention Substandard Doubtful Total Commercial and industrial $ 627,553 $ 16,407 $ 32,770 $ 462 $ 677,192 Multifamily 775,605 138,090 33,482 — 947,177 Commercial real estate 276,712 41,420 54,604 — 372,736 Construction and land development 28,967 15,936 11,184 — 56,087 Residential real estate lending 1,215,417 — 23,280 — 1,238,697 Consumer and other 190,044 — 632 — 190,676 Total loans $ 3,114,298 $ 211,853 $ 155,952 $ 462 $ 3,482,565 The above classifications follow regulatory guidelines and can be generally described as follows: • pass loans are of satisfactory quality; • special mention loans have a potential weakness or risk that may result in the deterioration of future repayment; • substandard loans are inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged (these loans have a well-defined weakness, and there is a distinct possibility that the Company will sustain some loss); and • doubtful loans, based on existing circumstances, have weaknesses that make collection or liquidation in full highly questionable and improbable. In addition, residential loans are classified utilizing an inter-agency methodology that incorporates the extent of delinquency. Assigned risk rating grades are continuously updated as new information is obtained. The following table provides information regarding the methods used to evaluate the Company’s loans for impairment by portfolio, and the Company’s allowance by portfolio based upon the method of evaluating loan impairment as of September 30, 2021: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Loans: Individually evaluated for impairment $ 16,148 $ 6,079 $ 4,023 $ 7,476 $ 33,726 $ — $ 67,452 Collectively evaluated for impairment 612,240 820,064 342,973 27,387 999,221 249,050 3,050,935 Total loans $ 628,388 $ 826,143 $ 346,996 $ 34,863 $ 1,032,947 $ 249,050 $ 3,118,387 Allowance for loan losses: Individually evaluated for impairment $ 5,309 $ 250 $ — $ — $ 935 $ — $ 6,494 Collectively evaluated for impairment 8,170 4,878 7,604 487 8,002 228 29,369 Total allowance for loan losses $ 13,479 $ 5,128 $ 7,604 $ 487 $ 8,937 $ 228 $ 35,863 The following table provides information regarding the methods used to evaluate the Company’s loans for impairment by portfolio, and the Company’s allowance by portfolio based upon the method of evaluating loan impairment as of December 31, 2020: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Loans: Individually evaluated for impairment $ 14,706 $ 9,575 $ 3,433 $ 11,184 $ 41,579 $ — $ 80,477 Collectively evaluated for impairment 662,486 937,602 369,303 44,903 1,197,118 190,676 3,402,088 Total loans $ 677,192 $ 947,177 $ 372,736 $ 56,087 $ 1,238,697 $ 190,676 $ 3,482,565 Allowance for loan losses: Individually evaluated for impairment $ 3,118 $ 1,933 $ — $ — $ 1,187 $ — $ 6,238 Collectively evaluated for impairment 5,947 8,391 6,213 2,077 11,143 1,580 35,351 Total allowance for loan losses $ 9,065 $ 10,324 $ 6,213 $ 2,077 $ 12,330 $ 1,580 $ 41,589 The activities in the allowance by portfolio for the three months ended September 30, 2021 are as follows: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 12,092 $ 5,672 $ 8,388 $ 1,449 $ 9,785 $ 626 $ 38,012 Provision for (recovery of) loan losses 1,385 (544) (470) (963) (1,677) (7) (2,276) Charge-offs — — (314) — (29) (420) (763) Recoveries 2 — — 1 858 29 890 Ending Balance $ 13,479 $ 5,128 $ 7,604 $ 487 $ 8,937 $ 228 $ 35,863 The activities in the allowance by portfolio for the three months ended September 30, 2020 are as follows: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 15,444 $ 7,063 $ 5,977 $ 3,276 $ 16,440 $ 1,810 $ 50,010 Provision for (recovery of) loan losses 1,322 1,382 2,161 (590) (1,134) 253 3,394 Charge-offs (78) — (3,787) (970) (188) (515) (5,538) Recoveries 1 — — 1 119 85 206 Ending Balance $ 16,689 $ 8,445 $ 4,351 $ 1,717 $ 15,237 $ 1,633 $ 48,072 (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 9,065 $ 10,324 $ 6,213 $ 2,077 $ 12,330 $ 1,580 $ 41,589 Provision for (recovery of) loan losses 4,205 (3,288) 1,705 (1,592) (5,060) 175 (3,855) Charge-offs — (1,908) (314) — (230) (1,596) (4,048) Recoveries 209 — — 2 1,897 69 2,177 Ending Balance $ 13,479 $ 5,128 $ 7,604 $ 487 $ 8,937 $ 228 $ 35,863 The activities in the allowance by portfolio for the nine months ended September 30, 2020 are as follows: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 11,126 $ 5,210 $ 2,492 $ 808 $ 14,149 $ 62 $ 33,847 Provision for (recovery of) loan losses 5,638 3,235 5,646 1,878 1,058 2,747 20,202 Charge-offs (79) — (3,787) (970) (452) (1,306) (6,594) Recoveries 4 — — 1 482 130 617 Ending Balance $ 16,689 $ 8,445 $ 4,351 $ 1,717 $ 15,237 $ 1,633 $ 48,072 The following is additional information regarding the Company’s individually impaired loans and the allowance related to such loans as of and for the year ended September 30, 2021 and December 31, 2020: September 30, 2021 (In thousands) Recorded Average Unpaid Related Loans without a related allowance: Residential real estate lending $ 14,564 $ 17,695 $ 19,593 $ — Construction and land development 7,476 9,330 7,476 — Commercial real estate 4,023 3,728 4,846 — 26,063 30,753 31,915 — Loans with a related allowance: Residential real estate lending 19,162 19,958 23,949 935 Multifamily 6,079 7,827 8,024 250 Commercial and industrial 16,148 15,427 33,719 5,309 41,389 43,212 65,692 6,494 Total individually impaired loans: Residential real estate lending 33,726 37,653 43,542 935 Multifamily 6,079 7,827 8,024 250 Construction and land development 7,476 9,330 7,476 — Commercial real estate 4,023 3,728 4,846 — Commercial and industrial 16,148 15,427 33,719 5,309 $ 67,452 $ 73,965 $ 97,607 $ 6,494 December 31, 2020 (In thousands) Recorded Investment Average Recorded Investment Unpaid Principal Balance Related Allowance Loans without a related allowance: Residential real estate lending $ 20,824 $ 12,660 $ 20,898 $ — Construction and land development 11,184 7,418 12,204 — Commercial real estate 3,433 6,120 4,023 — 35,441 26,198 37,125 — Loans with a related allowance: Residential real estate lending 20,755 22,151 24,680 1,187 Multifamily 9,575 4,788 9,589 1,933 Commercial and industrial 14,706 19,788 27,210 3,118 45,036 46,727 61,479 6,238 Total individually impaired loans: Residential real estate lending 41,579 34,811 45,578 1,187 Multifamily 9,575 4,788 9,589 1,933 Construction and land development 11,184 7,418 12,204 — Commercial real estate 3,433 6,120 4,023 — Commercial and industrial 14,706 19,788 27,210 3,118 $ 80,477 $ 72,925 $ 98,604 $ 6,238 As of September 30, 2021 and December 31, 2020, mortgage loans with an unpaid principal balance of $0.9 billion and $1.2 billion respectively, are pledged to the FHLB to secure outstanding advances and letters of credit. There were $463,000 in related party loans outstanding as of September 30, 2021 compared to no related party loans for December 31, 2020.

DEPOSITS

DEPOSITS	9 Months Ended
	Sep. 30, 2021
Statistical Disclosure for Banks [Abstract]
DEPOSITS	DEPOSITS Deposits are summarized as follows: September 30, 2021 December 31, 2020 Amount Weighted Average Rate Amount Weighted Average Rate (In thousands) Non-interest bearing demand deposit accounts $ 3,189,155 0.00 % $ 2,603,274 0.00 % NOW accounts 206,610 0.08 % 205,653 0.06 % Money market deposit accounts 2,241,914 0.12 % 1,914,391 0.13 % Savings accounts 364,568 0.11 % 343,368 0.12 % Time deposits 222,259 0.32 % 272,025 0.86 % $ 6,224,506 0.06 % $ 5,338,711 0.10 % The scheduled maturities of time deposits as of September 30, 2021 are as follows: (In thousands) 2021 $ 83,321 2022 115,523 2023 11,667 2024 6,194 2025 3,932 Thereafter 1,622 $ 222,259 Time deposits of $250,000 or more totaled $44.2 million as of September 30, 2021 and $31.2 million as of December 31, 2020. From time to time the Bank will issue time deposits through the Certificate of Deposit Account Registry Service (“CDARS”) for the purpose of providing FDIC insurance to bank customers with balances in excess of FDIC insurance limits. CDARS deposits totaled approximately $66.7 million and $123.8 million as of September 30, 2021 and December 31, 2020, respectively, and are included in Time deposits above. Our total deposits included deposits from Workers United and its related entities in the amounts of $94.7 million as of September 30, 2021 and $95.8 million as of December 31, 2020. Included in total deposits are state and municipal deposits totaling $47.9 million and $15.2 million as of September 30, 2021 and December 31, 2020, respectively. Such deposits are secured by letters of credit issued by the FHLB or by securities pledged with the FHLB.

BORROWED FUNDS

BORROWED FUNDS	9 Months Ended
	Sep. 30, 2021
Federal Home Loan Banks [Abstract]
BORROWED FUNDS	BORROWED FUNDSThere were no borrowed funds as of September 30, 2021 or December 31, 2020. FHLB advances are collateralized by the FHLB stock owned by the Bank plus a pledge of other eligible assets comprised of securities and mortgage loans. Assets are pledged to collateral capacity. As of September 30, 2021, the value of the other eligible assets had an estimated market value net of haircut tota

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Under the two-class method, earnings available to common stockholders for the period are allocated between common stockholders and participating securities according to participation rights in undistributed earnings. Our time-based and performance-based restricted stock units are not considered participating securities as they do not recei ve dividend distributions until satisfaction of the related vesting requirements. As of September 30, 2021 and September 30, 2020, we had 368,000 and 79,000 anti-dilutive shares, respectively. Following is a table setting forth the factors used in the earnings per share computation follow: Three Months Nine Months Ended 2021 2020 2021 2020 (In thousands, except per share amounts) Net income attributable to Amalgamated Financial Corp. $ 14,416 $ 12,480 $ 37,013 $ 32,399 Dividends paid on preferred stock — — — — Income attributable to common stock $ 14,416 $ 12,480 $ 37,013 $ 32,399 Weighted average common shares outstanding, basic 31,094 31,050 31,216 31,161 Basic earnings per common share $ 0.46 $ 0.40 $ 1.19 $ 1.04 Income attributable to common stock $ 14,416 $ 12,480 $ 37,013 $ 32,399 Weighted average common shares outstanding, basic 31,094 31,050 31,216 31,161 Incremental shares from assumed conversion of options and RSUs 368 25 368 79 Weighted average common shares outstanding, diluted 31,462 31,075 31,584 31,240 Diluted earnings per common share $ 0.46 $ 0.40 $ 1.17 $ 1.04

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
EMPLOYEE BENEFIT PLANS	EMPLOYEE BENEFIT PLANS Long Term Incentive Plans Stock Options: The Company does not currently maintain an active stock option plan that is available for issuing new options. As of January 1, 2021, all options are fully vested and the Company will not incur any further expense related to options. A summary of the status of the Company’s options as of September 30, 2021 follows: Number of Options Weighted Average Exercise Price Weighted Average Remaining Contractual Term Intrinsic Value (in thousands) Outstanding, December 31, 2020 1,978,560 $ 13.03 4.2 years Granted — — — Forfeited/ Expired (36,520) 12.69 — Exercised (988,320) 12.88 — Outstanding, September 30, 2021 953,720 13.20 5 years $ 2,496 Vested and Exercisable, September 30, 2021 953,720 $ 13.20 5 years $ 2,496 The range of exercise prices is $11.00 to $14.65 per share. As noted above, there was no compensation cost attributable to the options for for the nine months ended September 30, 2021 and $0.5 million for the nine months ended September 30, 2020, which is recorded within the Consolidated Statement of Income. Restricted Stock Units: The Amalgamated Financial Corp. 2021 Equity Incentive Plan (the “Equity Plan”) provides for the grant of stock-based incentive awards to employees and directors of the Company. The number of shares of common stock of the Company available for stock-based awards in the Equity Plan is 1,250,000 of which 619,154 shares were available for issuance as of September 30, 2021. During the nine months ended September 30, 2021, the Company granted 260,355 restricted stock units (“RSUs”) to employees under the Equity Plan and reserved 125,445 shares for issuance upon vesting assuming the Company’s employees achieve the maximum share payout. Of the 260,355 RSUs granted to employees, 213,348 RSUs time-vest ratably over three years and were granted at a fair value of $15.81 per share and 47,007 RSUs were performance-based and are more fully described below: • The Company granted 23,464 performance-based RSUs at a fair value of $15.81 per share which vest subject to the achievement of the Company’s corporate goal for the three-year period from December 31, 2020 to December 31, 2023. The corporate goal is based on the Company achieving a target increase in Tangible Book Value, adjusted for certain factors. The minimum and maximum awards that are achievable are 0 and 35,196 shares, respectively. • The Company granted 23,543 market-based RSUs at a fair value of $14.95 per share which vest subject to the Bank’s relative total shareholder return compared to a group of peer banks over a three-year period from February 3, 2021 to February 2, 2024. The minimum and maximum awards that are achievable are 0 and 35,315 shares, respectively. A summary of the status of the Company’s employee RSUs as of September 30, 2021 follows: Shares Grant Date Fair Value Unvested, December 31, 2020 290,637 $ 15.99 Awarded 260,355 15.81 Forfeited (69,410) 12.88 Vested (62,955) 14.45 Unvested, September 30, 2021 418,627 $ 15.56 Of the 418,627 unvested RSUs on September 30, 2021, the minimum units that will vest, solely due to a service test, are 356,335. The maximum units that will vest, assuming the highest payout on performance and market-based units, are 481,780. Compensation expense attributable to the employee RSUs was $0.5 million and $0.5 million for the three months ended September 30, 2021 and 2020, respectively. As of September 30, 2021, there was $4.6 million of total unrecognized compensation cost related to the non-vested RSUs granted to employees. This expense may increase or decrease depending on the expected number of performance-based shares to be issued. This expense is expected to be recognized over 2.2 years. During the nine months ended September 30, 2021, the Company granted 28,710 RSUs to directors under the Equity Plan that vest after one year. The Company recorded an expense of $0.1 million and $0.1 million for the three months ended September 30, 2021 and 2020, respectively. As of September 30, 2021, there was no unrecognized cost related to the non-vested RSUs granted to directors.

FAIR VALUE OF FINANCIAL INSTRUM

FAIR VALUE OF FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE OF FINANCIAL INSTRUMENTS	FAIR VALUE OF FINANCIAL INSTRUMENTS Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assumptions are developed based on prioritizing information within a fair value hierarchy that gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data. A description of the disclosure hierarchy and the types of financial instruments recorded at fair value that management believes would generally qualify for each category are as follows: Level 1 - Valuations are based on quoted prices in active markets for identical assets or liabilities. Accordingly, valuation of these assets and liabilities does not entail a significant degree of judgment. Examples include most U.S. Government securities and exchange-traded equity securities. Level 2 - Valuations are based on either quoted prices in markets that are not considered to be active or significant inputs to the methodology that are observable, either directly or indirectly. Financial instruments in this level would generally include mortgage-related securities and other debt issued by GSEs, non-GSE mortgage-related securities, corporate debt, certain redeemable fund investments and certain trust preferred securities. Level 3 - Valuations are based on inputs to the methodology that are unobservable and significant to the fair value measurement. These inputs reflect management’s own judgments about the assumptions that market participants would use in pricing the assets and liabilities. The following summarizes those financial instruments measured at fair value in the Consolidated Statements of Financial Condition categorized by the relevant class of investment and level of the fair value hierarchy: September 30, 2021 (In thousands) Level 1 Level 2 Level 3 Total Available for sale securities: Mortgage-related: GSE residential certificates $ — $ 4,402 $ — $ 4,402 GSE residential CMOs — 425,794 — 425,794 GSE commercial certificates & CMO — 391,201 — 391,201 Non-GSE residential certificates — 39,736 — 39,736 Non-GSE commercial certificates — 57,060 — 57,060 Other debt: U.S. Treasury 201 — — 201 ABS — 948,350 — 948,350 Trust preferred — 14,190 — 14,190 Corporate — 74,568 — 74,568 Total assets carried at fair value $ 201 $ 1,955,301 $ — $ 1,955,502 December 31, 2020 (In thousands) Level 1 Level 2 Level 3 Total Available for sale securities: Mortgage-related: GSE residential certificates $ — $ 13,299 $ — $ 13,299 GSE residential CMOs — 366,421 — 366,421 GSE commercial certificates & CMO — 432,614 — 432,614 Non-GSE residential certificates — 33,384 — 33,384 Non-GSE commercial certificates — 44,968 — 44,968 Other Debt: U.S. Treasury 203 — — 203 ABS — 597,546 — 597,546 Trust preferred — 13,773 — 13,773 Corporate — 37,654 — 37,654 Total assets carried at fair value $ 203 $ 1,539,659 $ — $ 1,539,862 The following tables summarize assets measured at fair value on a non-recurring basis: September 30, 2021 (In thousands) Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value Fair Value Measurements: Impaired loans $ 60,958 $ — $ — $ 60,958 $ 60,958 Other real estate owned 307 — — 335 335 $ 61,265 $ — $ — $ 61,293 $ 61,293 December 31, 2020 (In thousands) Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value Fair Value Measurements: Impaired loans $ 67,433 $ — $ — $ 67,433 $ 67,433 Other real estate owned 307 — — 303 303 $ 67,740 $ — $ — $ 67,736 $ 67,736 The following table summarizes the financial statement basis and estimated fair values for significant categories of financial instruments: September 30, 2021 Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value (In thousands) Financial assets: Cash and cash equivalents $ 690,246 $ 690,246 $ — $ — $ 690,246 Available for sale securities 1,955,502 201 1,955,301 — 1,955,502 Held to maturity securities 725,076 — 98,868 628,293 727,161 Loans held for sale 6,156 — — 6,156 6,156 Loans receivable, net 3,087,466 — — 3,142,776 3,142,776 Resell agreements 130,434 — — 130,434 130,434 Accrued interest and dividends receivable 23,337 — 23,337 — 23,337 Financial liabilities: Deposits payable on demand 6,002,247 — 6,002,247 — 6,002,247 Time deposits 222,259 — 222,513 — 222,513 Accrued interest payable 176 — 176 — 176 December 31, 2020 (In thousands) Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value Financial assets: Cash and cash equivalents $ 38,769 $ 38,769 $ — $ — $ 38,769 Available for sale securities 1,513,409 203 1,539,659 — 1,539,862 Held to maturity securities 494,449 — 76,519 425,906 502,425 Loans held for sale 11,178 — — 11,178 11,178 Loans receivable, net 3,447,306 — — 3,566,742 3,566,742 Resell agreements 154,779 — — 154,779 154,779 Accrued interest and dividends receivable 23,970 — 23,970 — 23,970 Financial liabilities: Deposits payable on demand 5,066,687 — 5,066,687 — 5,066,687 Time deposits 272,025 — 272,451 — 272,451 Accrued interest payable 386 386 386

COMMITMENTS, CONTINGENCIES AND

COMMITMENTS, CONTINGENCIES AND OFF BALANCE SHEET RISK	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS, CONTINGENCIES AND OFF BALANCE SHEET RISK	COMMITMENTS, CONTINGENCIES AND OFF BALANCE SHEET RISK Credit Commitments The Company is party to various credit related financial instruments with off balance sheet risk. The Company, in the normal course of business, issues such financial instruments in order to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amounts recognized in the consolidated statements of financial condition. The following financial instruments were outstanding whose contract amounts represent credit risk as of the related periods: September 30, 2021 December 31, 2020 (In thousands) Commitments to extend credit $ 706,497 $ 455,541 Standby letters of credit 17,259 17,910 Total $ 723,756 $ 473,451 Commitments to extend credit are contracts to lend to a customer as long as there is no violation of any condition established in the contract. These commitments have fixed expiration dates and other termination clauses and generally require the payment of nonrefundable fees. Since a portion of the commitments are expected to expire without being drawn upon, the contractual principal amounts do not necessarily represent future cash requirements. The Company’s maximum exposure to credit risk is represented by the contractual amount of these instruments. These instruments represent ultimate exposure to credit risk only to the extent they are subsequently drawn upon by customers. Standby letters of credit are conditional lending commitments issued by the Company to guarantee the financial performance of a customer to a third party. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan facilities to customers. The balance sheet carrying value of standby letters of credit approximates any nonrefundable fees received but not yet recorded as income. The Company considers this carrying value, which is not material, to approximate the estimated fair value of these financial instruments. The Company reserves for the credit risk inherent in off balance sheet credit commitments. This reserve, which is included in other liabilities, amounted to approximately $1.5 million as of September 30, 2021 and $1.2 million as of December 31, 2020. I nvestment Obligations The Bank is party to agreements with Pace Funding Group LLC, or PFG, for the purchase of up to $399 million of property assessed clean energy, or PACE, assessment securities by the end of the first quarter of 2022. Additionally, the Bank has an additional obligation up to $100 million for other PACE related purchases. These investments are to be held in the Company's held-to-maturity investment portfolio. As of September 30, 2021, we had fulfilled $315.7 million of these obligations. The PACE assessments have equal-lien priority with property taxes and generally rank senior to first lien mortgages.

LEASES

LEASES	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
LEASES	LEASES The Bank as a lessee has operating leases primarily consisting of real estate arrangements where the Company operates its headquarters, branches and business production offices. All leases identified as in scope are accounted for as operating leases as of September 30, 2021. These leases are typically long-term leases and generally are not complicated arrangements or structures. Several of the leases contain renewal options at a rate comparable to the fair market value based on comparable analysis to similar properties in the Bank’s geographies. Real estate operating leases are presented as a right-of-use (“ROU”) asset and a related operating lease liability on the Consolidated Statements of Financial Condition. The ROU asset represents the Company’s right to use the underlying asset for the lease term and the operating lease liabilities represent the obligation to make lease payments arising from the lease. The Company applied its incremental borrowing rate (“IBR”) as the discount rate to the remaining lease payments to derive a present value calculation for initial measurement of the operating lease liability. The IBR reflects the interest rate the Company would have to pay to borrow on a collateralized basis over a similar term for an amount equal to the lease payments. Lease expense is recognized on a straight-line basis over the lease term. The following table summarizes our lease cost and other operating lease information: Three Months Ended Nine Months Ended September 30, 2021 (In thousands) Operating lease cost $ 2,258 $ 6,679 Cash paid for amounts included in the measurement of Operating leases liability $ 2,566 $ 7,573 Weighted average remaining lease term on operating leases (in years) 5 5 Weighted average discount rate used for operating leases liability 3.25 % 3.26 % Note: Sublease income and variable income or expense considered immaterial The following table presents the remaining commitments for operating lease payments for the next five years and thereafter, as well as a reconciliation to the discounted operating leases liability recorded in the Consolidated Statements of Financial Condition as of September 30, 2021: (In thousands) As of September 30, 2021 2021 remaining $ 2,621 2022 10,955 2023 10,895 2024 10,525 2025 10,165 Thereafter 9,284 Total undiscounted operating lease payments 54,445 Less: present value adjustment 4,029 Total Operating leases liability $ 50,416

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS Goodwill In accordance with GAAP, the Company performs an annual test as of June 30 to identify potential impairment of goodwill, or more frequently if events or circumstances indicate a potential impairment may exist. If the carrying amount of the Company, as a sole reporting unit, including goodwill, exceeds its fair value, an impairment loss is recognized in an amount equal to that excess up to the amount of the recorded goodwill. The Company performed its annual test based upon market data as of June 30, 2021 and estimates and assumptions that the Company believes most appropriate for the analysis. Based on the qualitative analysis performed in accordance with ASC 350, the Company determined it more likely than not that goodwill was not impaired as of June 30, 2021. Changes in certain assumptions used in the Company's assessment could result in significant differences in the results of the impairment test. Should market conditions or management’s assumptions change significantly in the future, an impairment to goodwill is possible. At September 30, 2021 and December 31, 2020, the carrying amount of goodwill was $12.9 million. Intangible Assets The following table reflects the estimated amortization expense, comprised entirely by the Company’s core deposit intangible asset, for the next five years and thereafter: (In thousands) 2021 remaining $ 301 2022 1,047 2023 888 2024 730 2025 574 Thereafter 913 Total $ 4,453 Accumulated amortization of the core deposit intangible was $4.6 million as of September 30, 2021.

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES Tax Credit Investments The Company makes investments in unconsolidated entities that construct, own and operate solar generation facilities. An unrelated third party is the managing member and has control over the significant activities of the variable interest entities ("VIE"). The Company generates a return through the receipt of tax credits allocated to the projects, as well as operational distributions. The primary risk of loss is generally mitigated by policies requiring that the project qualify for the expected tax credits prior to the Company making its investment. Any loans to the VIE are secured. As of September 30, 2021, the Company's maximum exposure to loss is $16.2 million. September 30, 2021 December 31, 2020 (In thousands) Unconsolidated Variable Interest Entities Tax credit investments included in equity investments $ 525 $ 6,735 Loans and letters of credit commitments 15,636 11,097 Funded portion of loans and letters of credit commitments 15,636 11,097 The following table summarizes the tax benefits conveyed by the Company’s solar generation VIE investments: Three Months Ended Nine Months Ended September 30, September 30, 2021 2020 2021 2020 (In thousands) Tax credits and other tax benefits recognized $ 343 $ 10,786 $ 1,479 $ 12,646

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2021
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On Novem ber 8, 2021, the Company completed a public offering of $85.0 million of aggregated principal amount of 3.250% Fixed-to-Floating Rate subordinated notes due 2031. The subordinated notes will mature on November 15, 2031. We intend to use the net proceeds from this offering for general business purposes, including for funding the cash consideration to be paid in the Company's pending acquisition of AIC and for ongoing working capital needs.

BASIS OF PRESENTATION AND CON_2

BASIS OF PRESENTATION AND CONSOLIDATION (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Segment Information	Public companies are required to report certain financial information about significant revenue-producing segments of the business for which such information is available and utilized by the chief operating decision maker. Substantially all of our operations occur through the Bank and involve the delivery of loan and deposit products to customers. Management makes operating decisions and assesses performance based on an ongoing review of its banking operation, which constitutes our only operating segment for financial reporting purposes. We do not consider our trust and investment management business as a separate segment.
Basis of Accounting	The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America, or GAAP and predominant practices within the banking industry. The Company uses the accrual basis of accounting for financial statement purposes.
Consolidation	The accompanying unaudited consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries and its majority-owned subsidiaries and have been prepared in accordance with instructions to Form 10-Q and therefore do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with GAAP. All significant inter-company transactions and balances are eliminated in consolidation. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations as of the dates and for the interim periods presented have been included. A more detailed description of our accounting policies is included in the Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Annual Report”). There have been no significant changes to our accounting policies, or the estimates made pursuant to those policies as described in our 2020 Annual Report. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes appearing in the 2020 Annual Report.
Reclassifications	Certain reclassifications have been made to prior year amounts to conform to the current year presentation, however such reclassifications did not change stockholder equity or net income.
Recent Accounting Pronouncements	Accounting Standards Effective in 2021 and onward In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326) – Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 significantly changes the impairment model for most financial assets that are measured at amortized cost and certain other instruments from an incurred loss model to an expected loss model and provides for recording credit losses on available for sale debt securities through an allowance account. ASU 2016-13 also requires certain incremental disclosures. In October 2019, the FASB voted to extend the adoption date for entities eligible to be smaller reporting companies, public business entities ("PBEs") that are not SEC filers, and entities that are not PBEs from January 1, 2020 to January 1, 2023. Based on our election as an Emerging Growth Company under the Jumpstart Our Business Startups Act to use the extended transition period for complying with any new or revised financial accounting standards, we currently anticipate a January 1, 2023 adoption date. In preparation, we have performed work in assessing and enhancing the technology environment and related data needs and availability. Additionally, a Management Committee comprised of members from multiple departments has been established to monitor our progress towards adoption. As adoption will require the implementation of significant changes to the existing credit loss estimation model and is dependent on the economic forecast, and given the length of time before our adoption date, evaluating the overall impact of the ASU on our Consolidated Financial Statements is not yet determinable. On January 7, 2021, the FASB has issued Accounting Standards Update ("ASU") No. 2021-01, Reference Rate Reform (Topic 848): Scope. The new guidance amends the scope of ASU 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which was aimed at easing the potential accounting burden expected when global capital markets move away from the London Interbank Offered Rate ("LIBOR") (the benchmark interest rate banks use to make short-term loans to each other) and provided temporary, optional expedients and exceptions for applying accounting guidance to contract modifications and hedging relationships, subject to meeting certain criteria, that reference LIBOR or another reference rate expected to be discontinued. As the majority of our securities tied to LIBOR are expected to transition to the Secured Overnight Financing Rate ("SOFR") or pay off before the transition date and given that we do not have a substantial amount of commercial loans or any derivative transactions tied to LIBOR, the Adoption of ASU 2021-01 is not expected to have a material impact on our operating results or financial condition.
Fair Value of Financial Instruments	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assumptions are developed based on prioritizing information within a fair value hierarchy that gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data. A description of the disclosure hierarchy and the types of financial instruments recorded at fair value that management believes would generally qualify for each category are as follows: Level 1 - Valuations are based on quoted prices in active markets for identical assets or liabilities. Accordingly, valuation of these assets and liabilities does not entail a significant degree of judgment. Examples include most U.S. Government securities and exchange-traded equity securities. Level 2 - Valuations are based on either quoted prices in markets that are not considered to be active or significant inputs to the methodology that are observable, either directly or indirectly. Financial instruments in this level would generally include mortgage-related securities and other debt issued by GSEs, non-GSE mortgage-related securities, corporate debt, certain redeemable fund investments and certain trust preferred securities.

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Schedule Other Comprehensive Income (Loss)	Other comprehensive income (loss) components and related income tax effects were as follows: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (In thousands) Change in obligation for postretirement benefits and for prior service credit $ 53 $ 55 $ 159 $ 165 Change in obligation for other benefits 41 18 (330) 55 Change in total obligation for postretirement benefits and for prior service credit and for other benefits $ 94 $ 73 $ (171) $ 220 Income tax effect (26) (20) 29 (61) Net change in total obligation for postretirement benefits and prior service credit and for other benefits 68 53 (142) 159 Unrealized holding gains (losses) on available for sale securities $ (5,640) $ 11,706 $ (7,021) $ 18,149 Reclassification adjustment for losses (gains) realized in income (421) (620) (760) (1,604) Change in unrealized gains (losses) on available for sale securities (6,061) 11,086 (7,781) 16,545 Income tax effect 1,655 (3,086) 2,124 (4,606) Net change in unrealized gains (losses) on available for sale securities (4,406) 8,000 (5,657) 11,939 Total $ (4,338) $ 8,053 $ (5,799) $ 12,098
Schedule of Accumulated Other Comprehensive Income (Loss)	The following is a summary of the accumulated other comprehensive income (loss) balances, net of income taxes: Balance as of January 1, Current Income Tax Balance as of September 30, 2021 (In thousands) Unrealized gains (losses) on benefits plans $ (2,056) $ (171) $ 29 $ (2,198) Unrealized gains (losses) on available for sale securities 19,232 (7,781) 2,124 13,575 Total $ 17,176 $ (7,952) $ 2,153 $ 11,377
Schedule of Reclassifications out of Accumulated Other Comprehensive Income (Loss)	The following represents the reclassifications out of accumulated other comprehensive income (loss): Three Months Ended Nine Months Ended Affected Line Item in the Consolidated Statements of Income 2021 2020 2021 2020 (In thousands) Realized gains (losses) on sale of available for sale securities $ 413 $ 619 $ 755 $ 1,605 Gain (loss) on sale of investment securities available for sale, net Recognized gains (losses) on OTTI securities 8 — 5 (1) Non-Interest Income - other Income tax expense (benefit) 114 173 207 447 Income tax expense (benefit) Total reclassifications, net of income tax $ 307 $ 446 $ 553 $ 1,157 Prior service credit on pension plans and other postretirement benefits $ 7 $ 7 $ 21 $ 21 Compensation and employee benefits Income tax expense (benefit) (2) (2) (6) (6) Income tax expense (benefit) Total reclassifications, net of income tax $ 5 $ 5 $ 15 $ 15 Total reclassifications, net of income tax $ 312 $ 451 $ 568 $ 1,172

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Value of Available for Sale Securities	The amortized cost and fair value of investment securities available for sale and held to maturity as of September 30, 2021 are as follows: September 30, 2021 Amortized Gross Gross Fair (In thousands) Available for sale: Mortgage-related: GSE residential certificates $ 4,205 $ 197 $ — $ 4,402 GSE residential CMOs 419,019 7,769 (994) 425,794 GSE commercial certificates & CMO 384,271 7,600 (670) 391,201 Non-GSE residential certificates 39,785 55 (104) 39,736 Non-GSE commercial certificates 57,285 79 (304) 57,060 904,565 15,700 (2,072) 918,193 Other debt: U.S. Treasury 200 1 — 201 ABS 944,426 4,820 (896) 948,350 Trust preferred 14,630 — (440) 14,190 Corporate 73,009 1,636 (77) 74,568 1,032,265 6,457 (1,413) 1,037,309 Total available for sale $ 1,936,830 $ 22,157 $ (3,485) $ 1,955,502 Held to maturity: Mortgage-related: GSE commercial certificates $ 12,467 $ — $ (413) $ 12,054 GSE residential certificates 446 24 — 470 Non GSE commercial certificates 10,346 — (182) 10,164 23,259 24 (595) 22,688 Other debt: PACE Assessments 627,195 1,098 — 628,293 Municipal 71,522 2,158 (599) 73,081 Other 3,100 — (1) 3,099 701,817 3,256 (600) 704,473 Total held to maturity $ 725,076 $ 3,280 $ (1,195) $ 727,161 The amortized cost and fair value of investment securities available for sale and held to maturity as of December 31, 2020 are as follows: December 31, 2020 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale: Mortgage-related: GSE residential certificates $ 12,977 $ 322 $ — $ 13,299 GSE residential CMOs 353,783 12,690 (52) 366,421 GSE commercial certificates & CMO 421,488 11,548 (422) 432,614 Non-GSE residential certificates 33,120 281 (17) 33,384 Non-GSE commercial certificates 45,179 112 (323) 44,968 866,547 24,953 (814) 890,686 Other debt: U.S. Treasury 200 3 — 203 ABS 595,062 4,356 (1,872) 597,546 Trust preferred 14,627 — (854) 13,773 Corporate 36,973 683 (2) 37,654 Other — — — — 646,862 5,042 (2,728) 649,176 Total available for sale 1,513,409 29,995 (3,542) 1,539,862 Held to maturity: Mortgage-related: GSE residential certificates $ 611 $ 38 $ — $ 649 Non GSE commercial certificates 212 15 — 227 823 53 — 876 Other debt: PACE Assessments 421,036 4,870 — 425,906 Municipal 67,490 3,019 — 70,509 Other 5,100 34 — 5,134 493,626 7,923 — 501,549 Total held to maturity $ 494,449 $ 7,976 $ — $ 502,425
Schedule of Amortized Cost and Fair Value of Held to Maturity Securities	The amortized cost and fair value of investment securities available for sale and held to maturity as of September 30, 2021 are as follows: September 30, 2021 Amortized Gross Gross Fair (In thousands) Available for sale: Mortgage-related: GSE residential certificates $ 4,205 $ 197 $ — $ 4,402 GSE residential CMOs 419,019 7,769 (994) 425,794 GSE commercial certificates & CMO 384,271 7,600 (670) 391,201 Non-GSE residential certificates 39,785 55 (104) 39,736 Non-GSE commercial certificates 57,285 79 (304) 57,060 904,565 15,700 (2,072) 918,193 Other debt: U.S. Treasury 200 1 — 201 ABS 944,426 4,820 (896) 948,350 Trust preferred 14,630 — (440) 14,190 Corporate 73,009 1,636 (77) 74,568 1,032,265 6,457 (1,413) 1,037,309 Total available for sale $ 1,936,830 $ 22,157 $ (3,485) $ 1,955,502 Held to maturity: Mortgage-related: GSE commercial certificates $ 12,467 $ — $ (413) $ 12,054 GSE residential certificates 446 24 — 470 Non GSE commercial certificates 10,346 — (182) 10,164 23,259 24 (595) 22,688 Other debt: PACE Assessments 627,195 1,098 — 628,293 Municipal 71,522 2,158 (599) 73,081 Other 3,100 — (1) 3,099 701,817 3,256 (600) 704,473 Total held to maturity $ 725,076 $ 3,280 $ (1,195) $ 727,161 The amortized cost and fair value of investment securities available for sale and held to maturity as of December 31, 2020 are as follows: December 31, 2020 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale: Mortgage-related: GSE residential certificates $ 12,977 $ 322 $ — $ 13,299 GSE residential CMOs 353,783 12,690 (52) 366,421 GSE commercial certificates & CMO 421,488 11,548 (422) 432,614 Non-GSE residential certificates 33,120 281 (17) 33,384 Non-GSE commercial certificates 45,179 112 (323) 44,968 866,547 24,953 (814) 890,686 Other debt: U.S. Treasury 200 3 — 203 ABS 595,062 4,356 (1,872) 597,546 Trust preferred 14,627 — (854) 13,773 Corporate 36,973 683 (2) 37,654 Other — — — — 646,862 5,042 (2,728) 649,176 Total available for sale 1,513,409 29,995 (3,542) 1,539,862 Held to maturity: Mortgage-related: GSE residential certificates $ 611 $ 38 $ — $ 649 Non GSE commercial certificates 212 15 — 227 823 53 — 876 Other debt: PACE Assessments 421,036 4,870 — 425,906 Municipal 67,490 3,019 — 70,509 Other 5,100 34 — 5,134 493,626 7,923 — 501,549 Total held to maturity $ 494,449 $ 7,976 $ — $ 502,425
Schedule of Investments by Contractual Maturity	Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty: Available for Sale Held to Maturity Amortized Fair Value Amortized Fair Value (In thousands) Due within one year $ 200 $ 201 $ 1,100 $ 1,100 Due after one year through five years 21,000 21,352 2,000 1,999 Due after five years through ten years 364,701 365,646 — — Due after ten years 646,364 650,110 698,717 701,374 $ 1,032,265 $ 1,037,309 $ 701,817 $ 704,473
Schedule of Proceeds Received and Gains (Losses) on Sale of Available for Sale Securities	Three Months Ended, Nine Months Ended, September 30, 2021 September 30, 2020 September 30, 2021 September 30, 2020 (In thousands) Proceeds $ 31,603 $ 42,277 $ 94,899 $ 94,698 Realized gains $ 477 $ 856 $ 1,040 $ 2,111 Realized losses (64) (237) (285) (506) Net realized gains (losses) $ 413 $ 619 $ 755 $ 1,605
Schedule of Unrealized Losses	The following summarizes the fair value and unrealized losses for those available for sale and held to maturity securities as of September 30, 2021 and December 31, 2020, respectively, segregated between securities that have been in an unrealized loss position for less than twelve months and those that have been in a continuous unrealized loss position for twelve months or longer at the respective dates: September 30, 2021 Less Than Twelve Months Twelve Months or Longer Total (In thousands) Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Available for sale: Mortgage-related: GSE residential CMOs $ 140,726 $ (994) $ — $ — $ 140,726 $ (994) GSE commercial certificates & CMO 63,645 (567) 170,426 (103) 234,071 (670) Non-GSE residential certificates 35,547 (104) — — 35,547 (104) Non-GSE commercial certificates 24,721 (294) 10,966 (10) 35,687 (304) Other debt: ABS 183,785 (623) 74,047 (273) 257,832 (896) Trust preferred — — 14,190 (440) 14,190 (440) Corporate 16,923 (77) — — 16,923 (77) Total available for sale $ 465,347 $ (2,659) $ 269,629 $ (826) $ 734,976 $ (3,485) Held to maturity: Mortgage-related: GSE commercial certificates $ 12,054 $ (413) $ — $ — $ — $ 12,054 $ (413) Non GSE commercial certificates 9,970 (182) — — — 9,970 (182) Other debt: Municipal 20,164 (599) — — 20,164 (599) Other 3,099 (1) — — 3,099 (1) Total held to maturity $ 45,287 $ (1,195) $ — $ — $ 45,287 $ (1,195) December 31, 2020 Less Than Twelve Months Twelve Months or Longer Total (In thousands) Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Mortgage-related: GSE residential CMOs $ 31,106 $ (35) $ 12,910 $ (17) $ 44,016 $ (52) GSE commercial certificates & CMO 116,667 (287) 75,126 (135) 191,793 (422) Non-GSE residential certificates 2,138 (9) 3,077 (8) 5,215 (17) Non-GSE commercial certificates 47 — 29,207 (323) 29,254 (323) Other debt: ABS 3,010 (1) 298,410 (1,871) 301,420 (1,872) Trust preferred — — 13,773 (854) 13,773 (854) Corporate 6,998 (2) — — 6,998 (2) $ 159,966 $ (334) $ 432,503 $ (3,208) $ 592,469 $ (3,542)

LOANS RECEIVABLE, NET (Tables)

LOANS RECEIVABLE, NET (Tables)	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Schedule of Loans Receivable	Loans receivable are summarized as follows: September 30, December 31, (In thousands) Commercial and industrial $ 628,388 $ 677,192 Multifamily 826,143 947,177 Commercial real estate 346,996 372,736 Construction and land development 34,863 56,087 Total commercial portfolio 1,836,390 2,053,192 Residential real estate lending 1,032,947 1,238,697 Consumer and other 249,050 190,676 Total retail portfolio 1,281,997 1,429,373 Total loans receivable 3,118,387 3,482,565 Net deferred loan origination costs (fees) 4,942 6,330 Total loans receivable, net of deferred loan origination costs (fees) 3,123,329 3,488,895 Allowance for loan losses (35,863) (41,589) Total loans receivable, net $ 3,087,466 $ 3,447,306
Schedule of Quality of Bank's Loans	The following table presents information regarding the quality of the Company’s loans as of September 30, 2021: 30-89 Days Non- 90 Days or Total Past Current Current Total Loans (In thousands) Commercial and industrial $ 7,710 $ 13,709 $ — $ 21,419 $ — $ 606,969 $ 628,388 Multifamily 3,689 6,079 — 9,768 — 816,375 826,143 Commercial real estate 20,000 4,023 — 24,023 — 322,973 346,996 Construction and land development — — — — — 34,863 34,863 Total commercial portfolio 31,399 23,811 — 55,210 — 1,781,180 1,836,390 Residential real estate lending 2,011 20,797 — 22,808 — 1,010,139 1,032,947 Consumer and other 1,971 886 — 2,857 — 246,193 249,050 Total retail portfolio 3,982 21,683 — 25,665 — 1,256,332 1,281,997 $ 35,381 $ 45,494 $ — $ 80,875 $ — $ 3,037,512 $ 3,118,387 The following table presents information regarding the quality of the Company’s loans as of December 31, 2020: 30-89 Days Past Due Non- Accrual 90 Days or More Delinquent and Still Accruing Interest Total Past Due Current and Not Accruing Interest Current Total Loans Receivable (In thousands) Commercial and industrial $ — $ 12,444 $ 1,404 $ 13,848 $ — $ 663,344 $ 677,192 Multifamily 3,590 9,575 — 13,165 — 934,012 947,177 Commercial real estate 10,574 3,433 — 14,007 — 358,729 372,736 Construction and land development 9,974 11,184 — 21,158 — 34,929 56,087 Total commercial portfolio 24,138 36,636 1,404 62,178 — 1,991,014 2,053,192 Residential real estate lending 19,526 23,280 — 42,806 376 1,195,515 1,238,697 Consumer and other 1,015 632 — 1,647 — 189,029 190,676 Total retail portfolio 20,541 23,912 — 44,453 376 1,384,544 1,429,373 $ 44,679 $ 60,548 $ 1,404 $ 106,631 $ 376 $ 3,375,558 $ 3,482,565
Schedule of Troubled Debt Restructurings	The following table presents information regarding the Company’s TDRs as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Accruing Non- Accrual Total Accruing Non- Total Commercial and industrial $ 1,553 $ 11,149 $ 12,702 $ 1,648 $ 12,116 $ 13,764 Commercial real estate — 3,233 3,233 — 3,433 3,433 Construction and land development 7,476 — 7,476 — 2,682 2,682 Residential real estate lending 12,929 6,152 19,081 17,905 2,654 20,559 $ 21,958 $ 20,534 $ 42,492 $ 19,553 $ 20,885 $ 40,438
Schedule of Loans by Credit Quality Indicator	The following tables summarize the Company’s loan portfolio by credit quality indicator as of September 30, 2021: (In thousands) Pass Special Mention Substandard Doubtful Total Commercial and industrial $ 579,429 $ 22,655 $ 25,850 $ 454 $ 628,388 Multifamily 696,898 83,851 42,221 3,173 826,143 Commercial real estate 243,903 26,815 76,278 — 346,996 Construction and land development 27,387 — 7,476 — 34,863 Residential real estate lending 1,011,856 294 20,797 — 1,032,947 Consumer and other 248,164 — 886 — 249,050 Total loans $ 2,807,637 $ 133,615 $ 173,508 $ 3,627 $ 3,118,387 The following tables summarize the Company’s loan portfolio by credit quality indicator as of December 31, 2020: (In thousands) Pass Special Mention Substandard Doubtful Total Commercial and industrial $ 627,553 $ 16,407 $ 32,770 $ 462 $ 677,192 Multifamily 775,605 138,090 33,482 — 947,177 Commercial real estate 276,712 41,420 54,604 — 372,736 Construction and land development 28,967 15,936 11,184 — 56,087 Residential real estate lending 1,215,417 — 23,280 — 1,238,697 Consumer and other 190,044 — 632 — 190,676 Total loans $ 3,114,298 $ 211,853 $ 155,952 $ 462 $ 3,482,565
Schedule of Method for Evaluating Impairment and Allowance for Credit Loss Activity	The following table provides information regarding the methods used to evaluate the Company’s loans for impairment by portfolio, and the Company’s allowance by portfolio based upon the method of evaluating loan impairment as of September 30, 2021: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Loans: Individually evaluated for impairment $ 16,148 $ 6,079 $ 4,023 $ 7,476 $ 33,726 $ — $ 67,452 Collectively evaluated for impairment 612,240 820,064 342,973 27,387 999,221 249,050 3,050,935 Total loans $ 628,388 $ 826,143 $ 346,996 $ 34,863 $ 1,032,947 $ 249,050 $ 3,118,387 Allowance for loan losses: Individually evaluated for impairment $ 5,309 $ 250 $ — $ — $ 935 $ — $ 6,494 Collectively evaluated for impairment 8,170 4,878 7,604 487 8,002 228 29,369 Total allowance for loan losses $ 13,479 $ 5,128 $ 7,604 $ 487 $ 8,937 $ 228 $ 35,863 The following table provides information regarding the methods used to evaluate the Company’s loans for impairment by portfolio, and the Company’s allowance by portfolio based upon the method of evaluating loan impairment as of December 31, 2020: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Loans: Individually evaluated for impairment $ 14,706 $ 9,575 $ 3,433 $ 11,184 $ 41,579 $ — $ 80,477 Collectively evaluated for impairment 662,486 937,602 369,303 44,903 1,197,118 190,676 3,402,088 Total loans $ 677,192 $ 947,177 $ 372,736 $ 56,087 $ 1,238,697 $ 190,676 $ 3,482,565 Allowance for loan losses: Individually evaluated for impairment $ 3,118 $ 1,933 $ — $ — $ 1,187 $ — $ 6,238 Collectively evaluated for impairment 5,947 8,391 6,213 2,077 11,143 1,580 35,351 Total allowance for loan losses $ 9,065 $ 10,324 $ 6,213 $ 2,077 $ 12,330 $ 1,580 $ 41,589 The activities in the allowance by portfolio for the three months ended September 30, 2021 are as follows: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 12,092 $ 5,672 $ 8,388 $ 1,449 $ 9,785 $ 626 $ 38,012 Provision for (recovery of) loan losses 1,385 (544) (470) (963) (1,677) (7) (2,276) Charge-offs — — (314) — (29) (420) (763) Recoveries 2 — — 1 858 29 890 Ending Balance $ 13,479 $ 5,128 $ 7,604 $ 487 $ 8,937 $ 228 $ 35,863 The activities in the allowance by portfolio for the three months ended September 30, 2020 are as follows: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 15,444 $ 7,063 $ 5,977 $ 3,276 $ 16,440 $ 1,810 $ 50,010 Provision for (recovery of) loan losses 1,322 1,382 2,161 (590) (1,134) 253 3,394 Charge-offs (78) — (3,787) (970) (188) (515) (5,538) Recoveries 1 — — 1 119 85 206 Ending Balance $ 16,689 $ 8,445 $ 4,351 $ 1,717 $ 15,237 $ 1,633 $ 48,072 (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 9,065 $ 10,324 $ 6,213 $ 2,077 $ 12,330 $ 1,580 $ 41,589 Provision for (recovery of) loan losses 4,205 (3,288) 1,705 (1,592) (5,060) 175 (3,855) Charge-offs — (1,908) (314) — (230) (1,596) (4,048) Recoveries 209 — — 2 1,897 69 2,177 Ending Balance $ 13,479 $ 5,128 $ 7,604 $ 487 $ 8,937 $ 228 $ 35,863 The activities in the allowance by portfolio for the nine months ended September 30, 2020 are as follows: (In thousands) Commercial and Industrial Multifamily Commercial Real Estate Construction and Land Development Residential Real Estate Lending Consumer and Other Total Allowance for loan losses: Beginning balance $ 11,126 $ 5,210 $ 2,492 $ 808 $ 14,149 $ 62 $ 33,847 Provision for (recovery of) loan losses 5,638 3,235 5,646 1,878 1,058 2,747 20,202 Charge-offs (79) — (3,787) (970) (452) (1,306) (6,594) Recoveries 4 — — 1 482 130 617 Ending Balance $ 16,689 $ 8,445 $ 4,351 $ 1,717 $ 15,237 $ 1,633 $ 48,072
Schedule of Additional Information for Individually Impaired Loans and Allowances	The following is additional information regarding the Company’s individually impaired loans and the allowance related to such loans as of and for the year ended September 30, 2021 and December 31, 2020: September 30, 2021 (In thousands) Recorded Average Unpaid Related Loans without a related allowance: Residential real estate lending $ 14,564 $ 17,695 $ 19,593 $ — Construction and land development 7,476 9,330 7,476 — Commercial real estate 4,023 3,728 4,846 — 26,063 30,753 31,915 — Loans with a related allowance: Residential real estate lending 19,162 19,958 23,949 935 Multifamily 6,079 7,827 8,024 250 Commercial and industrial 16,148 15,427 33,719 5,309 41,389 43,212 65,692 6,494 Total individually impaired loans: Residential real estate lending 33,726 37,653 43,542 935 Multifamily 6,079 7,827 8,024 250 Construction and land development 7,476 9,330 7,476 — Commercial real estate 4,023 3,728 4,846 — Commercial and industrial 16,148 15,427 33,719 5,309 $ 67,452 $ 73,965 $ 97,607 $ 6,494 December 31, 2020 (In thousands) Recorded Investment Average Recorded Investment Unpaid Principal Balance Related Allowance Loans without a related allowance: Residential real estate lending $ 20,824 $ 12,660 $ 20,898 $ — Construction and land development 11,184 7,418 12,204 — Commercial real estate 3,433 6,120 4,023 — 35,441 26,198 37,125 — Loans with a related allowance: Residential real estate lending 20,755 22,151 24,680 1,187 Multifamily 9,575 4,788 9,589 1,933 Commercial and industrial 14,706 19,788 27,210 3,118 45,036 46,727 61,479 6,238 Total individually impaired loans: Residential real estate lending 41,579 34,811 45,578 1,187 Multifamily 9,575 4,788 9,589 1,933 Construction and land development 11,184 7,418 12,204 — Commercial real estate 3,433 6,120 4,023 — Commercial and industrial 14,706 19,788 27,210 3,118 $ 80,477 $ 72,925 $ 98,604 $ 6,238

DEPOSITS (Tables)

DEPOSITS (Tables)	9 Months Ended
	Sep. 30, 2021
Statistical Disclosure for Banks [Abstract]
Schedule of Deposits	Deposits are summarized as follows: September 30, 2021 December 31, 2020 Amount Weighted Average Rate Amount Weighted Average Rate (In thousands) Non-interest bearing demand deposit accounts $ 3,189,155 0.00 % $ 2,603,274 0.00 % NOW accounts 206,610 0.08 % 205,653 0.06 % Money market deposit accounts 2,241,914 0.12 % 1,914,391 0.13 % Savings accounts 364,568 0.11 % 343,368 0.12 % Time deposits 222,259 0.32 % 272,025 0.86 % $ 6,224,506 0.06 % $ 5,338,711 0.10 %
Schedule of Maturities of Time Deposits	The scheduled maturities of time deposits as of September 30, 2021 are as follows: (In thousands) 2021 $ 83,321 2022 115,523 2023 11,667 2024 6,194 2025 3,932 Thereafter 1,622 $ 222,259

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Factors Used in Earnings Per Share Calculation	Following is a table setting forth the factors used in the earnings per share computation follow: Three Months Nine Months Ended 2021 2020 2021 2020 (In thousands, except per share amounts) Net income attributable to Amalgamated Financial Corp. $ 14,416 $ 12,480 $ 37,013 $ 32,399 Dividends paid on preferred stock — — — — Income attributable to common stock $ 14,416 $ 12,480 $ 37,013 $ 32,399 Weighted average common shares outstanding, basic 31,094 31,050 31,216 31,161 Basic earnings per common share $ 0.46 $ 0.40 $ 1.19 $ 1.04 Income attributable to common stock $ 14,416 $ 12,480 $ 37,013 $ 32,399 Weighted average common shares outstanding, basic 31,094 31,050 31,216 31,161 Incremental shares from assumed conversion of options and RSUs 368 25 368 79 Weighted average common shares outstanding, diluted 31,462 31,075 31,584 31,240 Diluted earnings per common share $ 0.46 $ 0.40 $ 1.17 $ 1.04

EMPLOYEE BENEFIT PLANS (Tables)

EMPLOYEE BENEFIT PLANS (Tables)	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Schedule of Stock Option Activity	A summary of the status of the Company’s options as of September 30, 2021 follows: Number of Options Weighted Average Exercise Price Weighted Average Remaining Contractual Term Intrinsic Value (in thousands) Outstanding, December 31, 2020 1,978,560 $ 13.03 4.2 years Granted — — — Forfeited/ Expired (36,520) 12.69 — Exercised (988,320) 12.88 — Outstanding, September 30, 2021 953,720 13.20 5 years $ 2,496 Vested and Exercisable, September 30, 2021 953,720 $ 13.20 5 years $ 2,496
Schedule of Restricted Stock Unit Activity	A summary of the status of the Company’s employee RSUs as of September 30, 2021 follows: Shares Grant Date Fair Value Unvested, December 31, 2020 290,637 $ 15.99 Awarded 260,355 15.81 Forfeited (69,410) 12.88 Vested (62,955) 14.45 Unvested, September 30, 2021 418,627 $ 15.56

FAIR VALUE OF FINANCIAL INSTR_2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets Measured on Recurring Basis	The following summarizes those financial instruments measured at fair value in the Consolidated Statements of Financial Condition categorized by the relevant class of investment and level of the fair value hierarchy: September 30, 2021 (In thousands) Level 1 Level 2 Level 3 Total Available for sale securities: Mortgage-related: GSE residential certificates $ — $ 4,402 $ — $ 4,402 GSE residential CMOs — 425,794 — 425,794 GSE commercial certificates & CMO — 391,201 — 391,201 Non-GSE residential certificates — 39,736 — 39,736 Non-GSE commercial certificates — 57,060 — 57,060 Other debt: U.S. Treasury 201 — — 201 ABS — 948,350 — 948,350 Trust preferred — 14,190 — 14,190 Corporate — 74,568 — 74,568 Total assets carried at fair value $ 201 $ 1,955,301 $ — $ 1,955,502 December 31, 2020 (In thousands) Level 1 Level 2 Level 3 Total Available for sale securities: Mortgage-related: GSE residential certificates $ — $ 13,299 $ — $ 13,299 GSE residential CMOs — 366,421 — 366,421 GSE commercial certificates & CMO — 432,614 — 432,614 Non-GSE residential certificates — 33,384 — 33,384 Non-GSE commercial certificates — 44,968 — 44,968 Other Debt: U.S. Treasury 203 — — 203 ABS — 597,546 — 597,546 Trust preferred — 13,773 — 13,773 Corporate — 37,654 — 37,654 Total assets carried at fair value $ 203 $ 1,539,659 $ — $ 1,539,862
Schedule of Assets Measured on Nonrecurring Basis	The following tables summarize assets measured at fair value on a non-recurring basis: September 30, 2021 (In thousands) Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value Fair Value Measurements: Impaired loans $ 60,958 $ — $ — $ 60,958 $ 60,958 Other real estate owned 307 — — 335 335 $ 61,265 $ — $ — $ 61,293 $ 61,293 December 31, 2020 (In thousands) Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value Fair Value Measurements: Impaired loans $ 67,433 $ — $ — $ 67,433 $ 67,433 Other real estate owned 307 — — 303 303 $ 67,740 $ — $ — $ 67,736 $ 67,736
Schedule of Basis and Estimated Fair Values of Financial Instruments	The following table summarizes the financial statement basis and estimated fair values for significant categories of financial instruments: September 30, 2021 Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value (In thousands) Financial assets: Cash and cash equivalents $ 690,246 $ 690,246 $ — $ — $ 690,246 Available for sale securities 1,955,502 201 1,955,301 — 1,955,502 Held to maturity securities 725,076 — 98,868 628,293 727,161 Loans held for sale 6,156 — — 6,156 6,156 Loans receivable, net 3,087,466 — — 3,142,776 3,142,776 Resell agreements 130,434 — — 130,434 130,434 Accrued interest and dividends receivable 23,337 — 23,337 — 23,337 Financial liabilities: Deposits payable on demand 6,002,247 — 6,002,247 — 6,002,247 Time deposits 222,259 — 222,513 — 222,513 Accrued interest payable 176 — 176 — 176 December 31, 2020 (In thousands) Carrying Value Level 1 Level 2 Level 3 Estimated Fair Value Financial assets: Cash and cash equivalents $ 38,769 $ 38,769 $ — $ — $ 38,769 Available for sale securities 1,513,409 203 1,539,659 — 1,539,862 Held to maturity securities 494,449 — 76,519 425,906 502,425 Loans held for sale 11,178 — — 11,178 11,178 Loans receivable, net 3,447,306 — — 3,566,742 3,566,742 Resell agreements 154,779 — — 154,779 154,779 Accrued interest and dividends receivable 23,970 — 23,970 — 23,970 Financial liabilities: Deposits payable on demand 5,066,687 — 5,066,687 — 5,066,687 Time deposits 272,025 — 272,451 — 272,451 Accrued interest payable 386 386 386

COMMITMENTS, CONTINGENCIES AN_2

COMMITMENTS, CONTINGENCIES AND OFF BALANCE SHEET RISK (Tables)	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Financial Instruments Outstanding Representing Credit Risk	The following financial instruments were outstanding whose contract amounts represent credit risk as of the related periods: September 30, 2021 December 31, 2020 (In thousands) Commitments to extend credit $ 706,497 $ 455,541 Standby letters of credit 17,259 17,910 Total $ 723,756 $ 473,451

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Schedule of Lease Cost and Other Information	The following table summarizes our lease cost and other operating lease information: Three Months Ended Nine Months Ended September 30, 2021 (In thousands) Operating lease cost $ 2,258 $ 6,679 Cash paid for amounts included in the measurement of Operating leases liability $ 2,566 $ 7,573 Weighted average remaining lease term on operating leases (in years) 5 5 Weighted average discount rate used for operating leases liability 3.25 % 3.26 % Note: Sublease income and variable income or expense considered immaterial
Schedule of Remaining Commitments of Operating Lease Payments	The following table presents the remaining commitments for operating lease payments for the next five years and thereafter, as well as a reconciliation to the discounted operating leases liability recorded in the Consolidated Statements of Financial Condition as of September 30, 2021: (In thousands) As of September 30, 2021 2021 remaining $ 2,621 2022 10,955 2023 10,895 2024 10,525 2025 10,165 Thereafter 9,284 Total undiscounted operating lease payments 54,445 Less: present value adjustment 4,029 Total Operating leases liability $ 50,416

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Estimated Amortization Expense	The following table reflects the estimated amortization expense, comprised entirely by the Company’s core deposit intangible asset, for the next five years and thereafter: (In thousands) 2021 remaining $ 301 2022 1,047 2023 888 2024 730 2025 574 Thereafter 913 Total $ 4,453

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Variable Interest Entities	September 30, 2021 December 31, 2020 (In thousands) Unconsolidated Variable Interest Entities Tax credit investments included in equity investments $ 525 $ 6,735 Loans and letters of credit commitments 15,636 11,097 Funded portion of loans and letters of credit commitments 15,636 11,097 The following table summarizes the tax benefits conveyed by the Company’s solar generation VIE investments: Three Months Ended Nine Months Ended September 30, September 30, 2021 2020 2021 2020 (In thousands) Tax credits and other tax benefits recognized $ 343 $ 10,786 $ 1,479 $ 12,646

BASIS OF PRESENTATION AND CON_3

BASIS OF PRESENTATION AND CONSOLIDATION (Details) - Forecast - Amalgamated Investments Company $ in Millions	3 Months Ended
	Dec. 31, 2021USD ($)
Business Acquisition [Line Items]
All-cash transaction consideration	$ 98.1
Potential earnout	$ 1.1

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Equity [Abstract]
Change in obligation for postretirement benefits and for prior service credit	$ 53	$ 55	$ 159	$ 165
Change in obligation for other benefits	41	18	(330)	55
Change in total obligation for postretirement benefits and for prior service credit and for other benefits	94	73	(171)	220
Income tax effect	(26)	(20)	29	(61)
Net change in total obligation for postretirement benefits and prior service credit and for other benefits	68	53	(142)	159
Unrealized holding gains (losses) on available for sale securities	(5,640)	11,706	(7,021)	18,149
Reclassification adjustment for losses (gains) realized in income	(421)	(620)	(760)	(1,604)
Net unrealized gains (losses) on securities available for sale	(6,061)	11,086	(7,781)	16,545
Income tax effect	1,655	(3,086)	2,124	(4,606)
Net change in unrealized gains (losses) on available for sale securities	(4,406)	8,000	(5,657)	11,939
Total other comprehensive income (loss), net of taxes	$ (4,338)	$ 8,053	$ (5,799)	$ 12,098

ACCUMULATED OTHER COMPREHENSI_4

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 548,211	$ 503,702	$ 535,821	$ 490,544
Current Period Change	(5,967)	11,159	(7,952)	16,765
Income Tax Effect	1,629	(3,106)	2,153	(4,667)
Ending balance	556,390	522,497	556,390	522,497
Unrealized gains (losses) on benefits plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(2,056)
Current Period Change			(171)
Income Tax Effect			29
Ending balance	(2,198)		(2,198)
Unrealized gains (losses) on available for sale securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			19,232
Current Period Change			(7,781)
Income Tax Effect			2,124
Ending balance	13,575		13,575
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	15,715	7,270	17,176	3,225
Current Period Change			(7,952)
Income Tax Effect			2,153
Ending balance	$ 11,377	$ 15,323	$ 11,377	$ 15,323

ACCUMULATED OTHER COMPREHENSI_5

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-Interest Income - other	$ 134	$ 154	$ 424	$ 1,855
Income tax expense (benefit)	4,915	4,259	12,870	11,109
Compensation and employee benefits	17,482	17,547	52,485	52,338
Total reclassifications, net of income tax	14,416	12,480	37,013	32,399
Reclassification out of accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications, net of income tax	312	451	568	1,172
Reclassification out of accumulated other comprehensive income (loss) | Realized and recognized gains (losses) on sale of AFS and OTTI securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain (loss) on sale of investment securities available for sale, net	413	619	755	1,605
Non-Interest Income - other	8	0	5	(1)
Income tax expense (benefit)	114	173	207	447
Total reclassifications, net of income tax	307	446	553	1,157
Reclassification out of accumulated other comprehensive income (loss) | Prior service credit on pension plans and other postretirement benefits
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense (benefit)	(2)	(2)	(6)	(6)
Compensation and employee benefits	7	7	21	21
Total reclassifications, net of income tax	$ 5	$ 5	$ 15	$ 15

INVESTMENT SECURITIES - Amortiz

INVESTMENT SECURITIES - Amortized Cost and Fair Value of of AFS and HTM Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,936,830	$ 1,513,409
Gross Unrealized Gains	22,157	29,995
Gross Unrealized Losses	(3,485)	(3,542)
Fair Value	1,955,502	1,539,862
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	725,076	494,449
Gross Unrealized Gains	3,280	7,976
Gross Unrealized Losses	(1,195)	0
Fair Value	727,161	502,425
Mortgage-related
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	904,565	866,547
Gross Unrealized Gains	15,700	24,953
Gross Unrealized Losses	(2,072)	(814)
Fair Value	918,193	890,686
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	23,259	823
Gross Unrealized Gains	24	53
Gross Unrealized Losses	(595)	0
Fair Value	22,688	876
GSE residential certificates
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,205	12,977
Gross Unrealized Gains	197	322
Gross Unrealized Losses	0	0
Fair Value	4,402	13,299
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	446	611
Gross Unrealized Gains	24	38
Gross Unrealized Losses	0	0
Fair Value	470	649
GSE residential CMOs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	419,019	353,783
Gross Unrealized Gains	7,769	12,690
Gross Unrealized Losses	(994)	(52)
Fair Value	425,794	366,421
GSE commercial certificates & CMO
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	384,271	421,488
Gross Unrealized Gains	7,600	11,548
Gross Unrealized Losses	(670)	(422)
Fair Value	391,201	432,614
Non-GSE residential certificates
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	39,785	33,120
Gross Unrealized Gains	55	281
Gross Unrealized Losses	(104)	(17)
Fair Value	39,736	33,384
GSE commercial certificates
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	12,467
Gross Unrealized Gains	0
Gross Unrealized Losses	(413)
Fair Value	12,054
Non-GSE commercial certificates
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	57,285	45,179
Gross Unrealized Gains	79	112
Gross Unrealized Losses	(304)	(323)
Fair Value	57,060	44,968
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	10,346	212
Gross Unrealized Gains	0	15
Gross Unrealized Losses	(182)	0
Fair Value	10,164	227
Other debt
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,032,265	646,862
Gross Unrealized Gains	6,457	5,042
Gross Unrealized Losses	(1,413)	(2,728)
Fair Value	1,037,309	649,176
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	701,817	493,626
Gross Unrealized Gains	3,256	7,923
Gross Unrealized Losses	(600)	0
Fair Value	704,473	501,549
U.S. Treasury
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	200	200
Gross Unrealized Gains	1	3
Gross Unrealized Losses	0	0
Fair Value	201	203
ABS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	944,426	595,062
Gross Unrealized Gains	4,820	4,356
Gross Unrealized Losses	(896)	(1,872)
Fair Value	948,350	597,546
Trust preferred
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	14,630	14,627
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(440)	(854)
Fair Value	14,190	13,773
Corporate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	73,009	36,973
Gross Unrealized Gains	1,636	683
Gross Unrealized Losses	(77)	(2)
Fair Value	74,568	37,654
PACE Assessments
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	627,195	421,036
Gross Unrealized Gains	1,098	4,870
Gross Unrealized Losses	0	0
Fair Value	628,293	425,906
Municipal
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	71,522	67,490
Gross Unrealized Gains	2,158	3,019
Gross Unrealized Losses	(599)	0
Fair Value	73,081	70,509
Other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		0
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		0
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Amortized Cost	3,100	5,100
Gross Unrealized Gains	0	34
Gross Unrealized Losses	(1)	0
Fair Value	$ 3,099	$ 5,134

INVESTMENT SECURITIES - Narrati

INVESTMENT SECURITIES - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Fair value of available for sale securities, pledged as collateral	$ 917,400,000		$ 917,400,000
Fair value of held to maturity securities, pledged as collateral	22,000,000		22,000,000
Fair value of temporarily impaired securities	734,976,000		734,976,000		$ 592,469,000
Available for sale securities, temporarily impaired, unrealized loss	3,485,000		3,485,000		$ 3,542,000
Other than temporary impairment loss	7,500	$ 300	4,800	$ 900
Excluding GSE, US Treasury, TRUPS
Debt Securities, Available-for-sale [Line Items]
Fair value of temporarily impaired securities	380,000,000		380,000,000
Available for sale securities, temporarily impaired, unrealized loss	$ 2,100,000		$ 2,100,000

INVESTMENT SECURITIES - AFS and

INVESTMENT SECURITIES - AFS and HTM Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized Cost
Amortized Cost	$ 1,936,830	$ 1,513,409
Fair Value
Fair Value	1,955,502	1,539,862
Amortized Cost
Amortized Cost	725,076	494,449
Fair Value
Fair Value	727,161	502,425
Other debt
Amortized Cost
Due within one year	200
Due after one year through five years	21,000
Due after five years through ten years	364,701
Due after ten years	646,364
Amortized Cost	1,032,265	646,862
Fair Value
Due within one year	201
Due after one year through five years	21,352
Due after five years through ten years	365,646
Due after ten years	650,110
Fair Value	1,037,309	649,176
Amortized Cost
Due within one year	1,100
Due after one year through five years	2,000
Due after five years through ten years	0
Due after ten years	698,717
Amortized Cost	701,817	493,626
Fair Value
Due within one year	1,100
Due after one year through five years	1,999
Due after five years through ten years	0
Due after ten years	701,374
Fair Value	$ 704,473	$ 501,549

INVESTMENT SECURITIES - Proceed

INVESTMENT SECURITIES - Proceeds Received and Gains (Losses) Realized on Sale of Available for Sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Proceeds	$ 31,603	$ 42,277	$ 94,899	$ 94,698
Realized gains	477	856	1,040	2,111
Realized losses	(64)	(237)	(285)	(506)
Net realized gains (losses)	$ 413	$ 619	$ 755	$ 1,605

INVESTMENT SECURITIES - Schedul

INVESTMENT SECURITIES - Schedule of Unrealized Losses on Available for Sale and Held to Maturity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	$ 465,347	$ 159,966
Available for sale, less than 12 months, unrealized losses	(2,659)	(334)
Available for sale, 12 months or longer, fair value	269,629	432,503
Available for sale, 12 months or longer, unrealized losses	(826)	(3,208)
Available for sale, total fair value	734,976	592,469
Available for sale, total unrealized losses	(3,485)	(3,542)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Held to maturity, less than 12 months, fair value	45,287
Held to maturity, less than 12 months, unrealized loss	(1,195)
Held to maturity, 12 months or longer, fair value	0
Held to maturity, 12 months or longer, unrealized loss	0
Held to maturity, total fair value	45,287
Held to maturity, total unrealized losses	(1,195)
GSE residential CMOs
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	140,726	31,106
Available for sale, less than 12 months, unrealized losses	(994)	(35)
Available for sale, 12 months or longer, fair value	0	12,910
Available for sale, 12 months or longer, unrealized losses	0	(17)
Available for sale, total fair value	140,726	44,016
Available for sale, total unrealized losses	(994)	(52)
GSE commercial certificates & CMO
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	63,645	116,667
Available for sale, less than 12 months, unrealized losses	(567)	(287)
Available for sale, 12 months or longer, fair value	170,426	75,126
Available for sale, 12 months or longer, unrealized losses	(103)	(135)
Available for sale, total fair value	234,071	191,793
Available for sale, total unrealized losses	(670)	(422)
Non-GSE residential certificates
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	35,547	2,138
Available for sale, less than 12 months, unrealized losses	(104)	(9)
Available for sale, 12 months or longer, fair value	0	3,077
Available for sale, 12 months or longer, unrealized losses	0	(8)
Available for sale, total fair value	35,547	5,215
Available for sale, total unrealized losses	(104)	(17)
Non-GSE commercial certificates
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	24,721	47
Available for sale, less than 12 months, unrealized losses	(294)	0
Available for sale, 12 months or longer, fair value	10,966	29,207
Available for sale, 12 months or longer, unrealized losses	(10)	(323)
Available for sale, total fair value	35,687	29,254
Available for sale, total unrealized losses	(304)	(323)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Held to maturity, less than 12 months, fair value	9,970
Held to maturity, less than 12 months, unrealized loss	(182)
Held to maturity, 12 months or longer, fair value	0
Held to maturity, 12 months or longer, unrealized loss	0
Held to maturity, total fair value	9,970
Held to maturity, total unrealized losses	(182)
GSE commercial certificates
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Held to maturity, less than 12 months, fair value	12,054
Held to maturity, less than 12 months, unrealized loss	(413)
Held to maturity, 12 months or longer, fair value	0
Held to maturity, 12 months or longer, unrealized loss	0
Held to maturity, total fair value	12,054
Held to maturity, total unrealized losses	(413)
ABS
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	183,785	3,010
Available for sale, less than 12 months, unrealized losses	(623)	(1)
Available for sale, 12 months or longer, fair value	74,047	298,410
Available for sale, 12 months or longer, unrealized losses	(273)	(1,871)
Available for sale, total fair value	257,832	301,420
Available for sale, total unrealized losses	(896)	(1,872)
Trust preferred
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	0	0
Available for sale, less than 12 months, unrealized losses	0	0
Available for sale, 12 months or longer, fair value	14,190	13,773
Available for sale, 12 months or longer, unrealized losses	(440)	(854)
Available for sale, total fair value	14,190	13,773
Available for sale, total unrealized losses	(440)	(854)
Corporate
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale, less than 12 months, fair value	16,923	6,998
Available for sale, less than 12 months, unrealized losses	(77)	(2)
Available for sale, 12 months or longer, fair value	0	0
Available for sale, 12 months or longer, unrealized losses	0	0
Available for sale, total fair value	16,923	6,998
Available for sale, total unrealized losses	(77)	$ (2)
Municipal
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Held to maturity, less than 12 months, fair value	20,164
Held to maturity, less than 12 months, unrealized loss	(599)
Held to maturity, 12 months or longer, fair value	0
Held to maturity, 12 months or longer, unrealized loss	0
Held to maturity, total fair value	20,164
Held to maturity, total unrealized losses	(599)
Other
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Held to maturity, less than 12 months, fair value	3,099
Held to maturity, less than 12 months, unrealized loss	(1)
Held to maturity, 12 months or longer, fair value	0
Held to maturity, 12 months or longer, unrealized loss	0
Held to maturity, total fair value	3,099
Held to maturity, total unrealized losses	$ (1)

LOANS RECEIVABLE, NET - Schedul

LOANS RECEIVABLE, NET - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 3,118,387		$ 3,482,565
Net deferred loan origination costs (fees)	4,942		6,330
Total loans receivable, net of deferred loan origination costs (fees)	3,123,329		3,488,895
Allowance for loan losses	(35,863)	$ (38,012)	(41,589)	$ (48,072)	$ (50,010)	$ (33,847)
Total loans receivable, net	3,087,466		3,447,306
Commercial portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,836,390		2,053,192
Commercial portfolio | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	628,388		677,192
Allowance for loan losses	(13,479)	(12,092)	(9,065)	(16,689)	(15,444)	(11,126)
Commercial portfolio | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	826,143		947,177
Allowance for loan losses	(5,128)	(5,672)	(10,324)	(8,445)	(7,063)	(5,210)
Commercial portfolio | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	346,996		372,736
Allowance for loan losses	(7,604)	(8,388)	(6,213)	(4,351)	(5,977)	(2,492)
Commercial portfolio | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	34,863		56,087
Allowance for loan losses	(487)	(1,449)	(2,077)	(1,717)	(3,276)	(808)
Retail portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,281,997		1,429,373
Retail portfolio | Residential real estate lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,032,947		1,238,697
Allowance for loan losses	(8,937)	(9,785)	(12,330)	(15,237)	(16,440)	(14,149)
Retail portfolio | Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	249,050		190,676
Allowance for loan losses	$ (228)	$ (626)	$ (1,580)	$ (1,633)	$ (1,810)	$ (62)

LOANS RECEIVABLE, NET - Sched_2

LOANS RECEIVABLE, NET - Schedule of Quality of Bank's Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	$ 3,118,387	$ 3,482,565
Non- Accrual	45,494	60,548
90 Days or More Delinquent and Still Accruing Interest	0	1,404
Current and Not Accruing Interest	0	376
30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	35,381	44,679
Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	80,875	106,631
Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,037,512	3,375,558
Commercial portfolio
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,836,390	2,053,192
Non- Accrual	23,811	36,636
90 Days or More Delinquent and Still Accruing Interest	0	1,404
Current and Not Accruing Interest	0	0
Commercial portfolio | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	31,399	24,138
Commercial portfolio | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	55,210	62,178
Commercial portfolio | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,781,180	1,991,014
Commercial portfolio | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	628,388	677,192
Non- Accrual	13,709	12,444
90 Days or More Delinquent and Still Accruing Interest	0	1,404
Current and Not Accruing Interest	0	0
Commercial portfolio | Commercial and industrial | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	7,710	0
Commercial portfolio | Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	21,419	13,848
Commercial portfolio | Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	606,969	663,344
Commercial portfolio | Multifamily
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	826,143	947,177
Non- Accrual	6,079	9,575
90 Days or More Delinquent and Still Accruing Interest	0	0
Current and Not Accruing Interest	0	0
Commercial portfolio | Multifamily | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,689	3,590
Commercial portfolio | Multifamily | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	9,768	13,165
Commercial portfolio | Multifamily | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	816,375	934,012
Commercial portfolio | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	346,996	372,736
Non- Accrual	4,023	3,433
90 Days or More Delinquent and Still Accruing Interest	0	0
Current and Not Accruing Interest	0	0
Commercial portfolio | Commercial real estate | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	20,000	10,574
Commercial portfolio | Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	24,023	14,007
Commercial portfolio | Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	322,973	358,729
Commercial portfolio | Construction and land development
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	34,863	56,087
Non- Accrual	0	11,184
90 Days or More Delinquent and Still Accruing Interest	0	0
Current and Not Accruing Interest	0	0
Commercial portfolio | Construction and land development | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	9,974
Commercial portfolio | Construction and land development | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	21,158
Commercial portfolio | Construction and land development | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	34,863	34,929
Retail portfolio
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,281,997	1,429,373
Non- Accrual	21,683	23,912
90 Days or More Delinquent and Still Accruing Interest	0	0
Current and Not Accruing Interest	0	376
Retail portfolio | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,982	20,541
Retail portfolio | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	25,665	44,453
Retail portfolio | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,256,332	1,384,544
Retail portfolio | Residential real estate lending
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,032,947	1,238,697
Non- Accrual	20,797	23,280
90 Days or More Delinquent and Still Accruing Interest	0	0
Current and Not Accruing Interest	0	376
Retail portfolio | Residential real estate lending | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,011	19,526
Retail portfolio | Residential real estate lending | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	22,808	42,806
Retail portfolio | Residential real estate lending | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,010,139	1,195,515
Retail portfolio | Consumer and other
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	249,050	190,676
Non- Accrual	886	632
90 Days or More Delinquent and Still Accruing Interest	0	0
Current and Not Accruing Interest	0	0
Retail portfolio | Consumer and other | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,971	1,015
Retail portfolio | Consumer and other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,857	1,647
Retail portfolio | Consumer and other | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	$ 246,193	$ 189,029

LOANS RECEIVABLE, NET - Narrati

LOANS RECEIVABLE, NET - Narrative (Details) $ in Thousands	Sep. 30, 2021USD ($)loan	Dec. 31, 2020USD ($)
Receivables [Abstract]
Loans held for sale	$ 6,156	$ 11,178
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans receivable	3,118,387	3,482,565
Mortgage loans pledged to the FHLBNY to secure outstanding advances and letters of credit	900,000	1,200,000
Related party loans outstanding	463	0
Retail portfolio
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans receivable	1,281,997	1,429,373
Retail portfolio | Residential real estate lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans receivable	1,032,947	1,238,697
Retail portfolio | Consumer and other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans receivable	249,050	190,676
Retail portfolio | Principal and Interest Payment Deferral Method - CARES Act | Residential real estate lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans receivable	$ 16,700
Number of loans requesting additional deferral | loan	2
Commercial portfolio
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans receivable	$ 1,836,390	$ 2,053,192

LOANS RECEIVABLE, NET - Sched_3

LOANS RECEIVABLE, NET - Schedule of Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Accruing	$ 21,958	$ 19,553
Non- Accrual	20,534	20,885
Total	3,118,387	3,482,565
Nonperforming Financial Instruments
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	42,492	40,438
Commercial portfolio
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,836,390	2,053,192
Commercial portfolio | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Accruing	1,553	1,648
Non- Accrual	11,149	12,116
Total	628,388	677,192
Commercial portfolio | Commercial and industrial | Nonperforming Financial Instruments
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	12,702	13,764
Commercial portfolio | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Accruing	0	0
Non- Accrual	3,233	3,433
Total	346,996	372,736
Commercial portfolio | Commercial real estate | Nonperforming Financial Instruments
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	3,233	3,433
Commercial portfolio | Construction and land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Accruing	7,476	0
Non- Accrual	0	2,682
Total	34,863	56,087
Commercial portfolio | Construction and land development | Nonperforming Financial Instruments
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	7,476	2,682
Retail portfolio
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,281,997	1,429,373
Retail portfolio | Residential real estate lending
Financing Receivable, Allowance for Credit Loss [Line Items]
Accruing	12,929	17,905
Non- Accrual	6,152	2,654
Total	1,032,947	1,238,697
Retail portfolio | Residential real estate lending | Nonperforming Financial Instruments
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 19,081	$ 20,559

LOANS RECEIVABLE, NET - Sched_4

LOANS RECEIVABLE, NET - Schedule of Loan Portfolio by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	$ 3,118,387	$ 3,482,565
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	2,807,637	3,114,298
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	133,615	211,853
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	173,508	155,952
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	3,627	462
Commercial portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	1,836,390	2,053,192
Commercial portfolio | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	628,388	677,192
Commercial portfolio | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	579,429	627,553
Commercial portfolio | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	22,655	16,407
Commercial portfolio | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	25,850	32,770
Commercial portfolio | Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	454	462
Commercial portfolio | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	826,143	947,177
Commercial portfolio | Multifamily | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	696,898	775,605
Commercial portfolio | Multifamily | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	83,851	138,090
Commercial portfolio | Multifamily | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	42,221	33,482
Commercial portfolio | Multifamily | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	3,173	0
Commercial portfolio | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	346,996	372,736
Commercial portfolio | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	243,903	276,712
Commercial portfolio | Commercial real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	26,815	41,420
Commercial portfolio | Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	76,278	54,604
Commercial portfolio | Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	0	0
Commercial portfolio | Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	34,863	56,087
Commercial portfolio | Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	27,387	28,967
Commercial portfolio | Construction and land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	0	15,936
Commercial portfolio | Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	7,476	11,184
Commercial portfolio | Construction and land development | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	0	0
Retail portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	1,281,997	1,429,373
Retail portfolio | Residential real estate lending
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	1,032,947	1,238,697
Retail portfolio | Residential real estate lending | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	1,011,856	1,215,417
Retail portfolio | Residential real estate lending | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	294	0
Retail portfolio | Residential real estate lending | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	20,797	23,280
Retail portfolio | Residential real estate lending | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	0	0
Retail portfolio | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	249,050	190,676
Retail portfolio | Consumer and other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	248,164	190,044
Retail portfolio | Consumer and other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	0	0
Retail portfolio | Consumer and other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	886	632
Retail portfolio | Consumer and other | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans receivable	$ 0	$ 0

LOANS RECEIVABLE, NET - Method

LOANS RECEIVABLE, NET - Method of Evaluating Impairment of Loans and Allowance (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	$ 67,452		$ 80,477
Loans - collectively evaluated for impairment	3,050,935		3,402,088
Total Loans Receivable	3,118,387		3,482,565
Allowance for loan losses - individually evaluated for impairment	6,494		6,238
Allowance for loan losses - collectively evaluated for impairment	29,369		35,351
Total allowance for loan losses	35,863	$ 38,012	41,589	$ 48,072	$ 50,010	$ 33,847
Commercial portfolio
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans Receivable	1,836,390		2,053,192
Commercial portfolio | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	16,148		14,706
Loans - collectively evaluated for impairment	612,240		662,486
Total Loans Receivable	628,388		677,192
Allowance for loan losses - individually evaluated for impairment	5,309		3,118
Allowance for loan losses - collectively evaluated for impairment	8,170		5,947
Total allowance for loan losses	13,479	12,092	9,065	16,689	15,444	11,126
Commercial portfolio | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	6,079		9,575
Loans - collectively evaluated for impairment	820,064		937,602
Total Loans Receivable	826,143		947,177
Allowance for loan losses - individually evaluated for impairment	250		1,933
Allowance for loan losses - collectively evaluated for impairment	4,878		8,391
Total allowance for loan losses	5,128	5,672	10,324	8,445	7,063	5,210
Commercial portfolio | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	4,023		3,433
Loans - collectively evaluated for impairment	342,973		369,303
Total Loans Receivable	346,996		372,736
Allowance for loan losses - individually evaluated for impairment	0		0
Allowance for loan losses - collectively evaluated for impairment	7,604		6,213
Total allowance for loan losses	7,604	8,388	6,213	4,351	5,977	2,492
Commercial portfolio | Construction and land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	7,476		11,184
Loans - collectively evaluated for impairment	27,387		44,903
Total Loans Receivable	34,863		56,087
Allowance for loan losses - individually evaluated for impairment	0		0
Allowance for loan losses - collectively evaluated for impairment	487		2,077
Total allowance for loan losses	487	1,449	2,077	1,717	3,276	808
Retail portfolio
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans Receivable	1,281,997		1,429,373
Retail portfolio | Residential real estate lending
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	33,726		41,579
Loans - collectively evaluated for impairment	999,221		1,197,118
Total Loans Receivable	1,032,947		1,238,697
Allowance for loan losses - individually evaluated for impairment	935		1,187
Allowance for loan losses - collectively evaluated for impairment	8,002		11,143
Total allowance for loan losses	8,937	9,785	12,330	15,237	16,440	14,149
Retail portfolio | Consumer and other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans - individually evaluated for impairment	0		0
Loans - collectively evaluated for impairment	249,050		190,676
Total Loans Receivable	249,050		190,676
Allowance for loan losses - individually evaluated for impairment	0		0
Allowance for loan losses - collectively evaluated for impairment	228		1,580
Total allowance for loan losses	$ 228	$ 626	$ 1,580	$ 1,633	$ 1,810	$ 62

LOANS RECEIVABLE, NET - Sched_5

LOANS RECEIVABLE, NET - Schedule of Activity in Allowance by Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 38,012	$ 50,010	$ 41,589	$ 33,847
Provision for (recovery of) loan losses	(2,276)	3,394	(3,855)	20,202
Charge-offs	(763)	(5,538)	(4,048)	(6,594)
Recoveries	890	206	2,177	617
Ending Balance	35,863	48,072	35,863	48,072
Commercial portfolio | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	12,092	15,444	9,065	11,126
Provision for (recovery of) loan losses	1,385	1,322	4,205	5,638
Charge-offs	0	(78)	0	(79)
Recoveries	2	1	209	4
Ending Balance	13,479	16,689	13,479	16,689
Commercial portfolio | Multifamily
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	5,672	7,063	10,324	5,210
Provision for (recovery of) loan losses	(544)	1,382	(3,288)	3,235
Charge-offs	0	0	(1,908)	0
Recoveries	0	0	0	0
Ending Balance	5,128	8,445	5,128	8,445
Commercial portfolio | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	8,388	5,977	6,213	2,492
Provision for (recovery of) loan losses	(470)	2,161	1,705	5,646
Charge-offs	(314)	(3,787)	(314)	(3,787)
Recoveries	0	0	0	0
Ending Balance	7,604	4,351	7,604	4,351
Commercial portfolio | Construction and land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,449	3,276	2,077	808
Provision for (recovery of) loan losses	(963)	(590)	(1,592)	1,878
Charge-offs	0	(970)	0	(970)
Recoveries	1	1	2	1
Ending Balance	487	1,717	487	1,717
Retail portfolio | Residential real estate lending
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	9,785	16,440	12,330	14,149
Provision for (recovery of) loan losses	(1,677)	(1,134)	(5,060)	1,058
Charge-offs	(29)	(188)	(230)	(452)
Recoveries	858	119	1,897	482
Ending Balance	8,937	15,237	8,937	15,237
Retail portfolio | Consumer and other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	626	1,810	1,580	62
Provision for (recovery of) loan losses	(7)	253	175	2,747
Charge-offs	(420)	(515)	(1,596)	(1,306)
Recoveries	29	85	69	130
Ending Balance	$ 228	$ 1,633	$ 228	$ 1,633

LOANS RECEIVABLE, NET - Sched_6

LOANS RECEIVABLE, NET - Schedule of Individually Impaired Loans and Allowances (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Loans without a related allowance - recorded investment	$ 26,063	$ 35,441
Loans without a related allowance - average recorded investment	30,753	26,198
Loans without a related allowance - unpaid principal balance	31,915	37,125
Loans with a related allowance - recorded investment	41,389	45,036
Loans with a related allowance - average recorded investment	43,212	46,727
Loans with a related allowance - unpaid principal balance	65,692	61,479
Total individually impaired loans - recorded investment	67,452	80,477
Total individually impaired loans - average recorded investment	73,965	72,925
Total individually impaired loans - unpaid principal balance	97,607	98,604
Individually impaired loans - related allowance	6,494	6,238
Retail portfolio | Residential real estate lending
Financing Receivable, Impaired [Line Items]
Loans without a related allowance - recorded investment	14,564	20,824
Loans without a related allowance - average recorded investment	17,695	12,660
Loans without a related allowance - unpaid principal balance	19,593	20,898
Loans with a related allowance - recorded investment	19,162	20,755
Loans with a related allowance - average recorded investment	19,958	22,151
Loans with a related allowance - unpaid principal balance	23,949	24,680
Total individually impaired loans - recorded investment	33,726	41,579
Total individually impaired loans - average recorded investment	37,653	34,811
Total individually impaired loans - unpaid principal balance	43,542	45,578
Individually impaired loans - related allowance	935	1,187
Commercial portfolio | Construction and land development
Financing Receivable, Impaired [Line Items]
Loans without a related allowance - recorded investment	7,476	11,184
Loans without a related allowance - average recorded investment	9,330	7,418
Loans without a related allowance - unpaid principal balance	7,476	12,204
Total individually impaired loans - recorded investment	7,476	11,184
Total individually impaired loans - average recorded investment	9,330	7,418
Total individually impaired loans - unpaid principal balance	7,476	12,204
Individually impaired loans - related allowance	0	0
Commercial portfolio | Commercial real estate
Financing Receivable, Impaired [Line Items]
Loans without a related allowance - recorded investment	4,023	3,433
Loans without a related allowance - average recorded investment	3,728	6,120
Loans without a related allowance - unpaid principal balance	4,846	4,023
Total individually impaired loans - recorded investment	4,023	3,433
Total individually impaired loans - average recorded investment	3,728	6,120
Total individually impaired loans - unpaid principal balance	4,846	4,023
Individually impaired loans - related allowance	0	0
Commercial portfolio | Multifamily
Financing Receivable, Impaired [Line Items]
Loans with a related allowance - recorded investment	6,079	9,575
Loans with a related allowance - average recorded investment	7,827	4,788
Loans with a related allowance - unpaid principal balance	8,024	9,589
Total individually impaired loans - recorded investment	6,079	9,575
Total individually impaired loans - average recorded investment	7,827	4,788
Total individually impaired loans - unpaid principal balance	8,024	9,589
Individually impaired loans - related allowance	250	1,933
Commercial portfolio | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Loans with a related allowance - recorded investment	16,148	14,706
Loans with a related allowance - average recorded investment	15,427	19,788
Loans with a related allowance - unpaid principal balance	33,719	27,210
Total individually impaired loans - recorded investment	16,148	14,706
Total individually impaired loans - average recorded investment	15,427	19,788
Total individually impaired loans - unpaid principal balance	33,719	27,210
Individually impaired loans - related allowance	$ 5,309	$ 3,118

DEPOSITS - Schedule of Deposits

DEPOSITS - Schedule of Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amount
Non-interest bearing demand deposit accounts	$ 3,189,155	$ 2,603,274
NOW accounts	206,610	205,653
Money market deposit accounts	2,241,914	1,914,391
Savings accounts	364,568	343,368
Time deposits	222,259	272,025
Total deposits	$ 6,224,506	$ 5,338,711
Weighted Average Rate
NOW accounts	0.08%	0.06%
Money market deposit accounts	0.12%	0.13%
Savings accounts	0.11%	0.12%
Time deposits	0.32%	0.86%
Deposits	0.06%	0.10%

DEPOSITS - Schedule of Maturiti

DEPOSITS - Schedule of Maturities of Time Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Time Deposits, Fiscal Year Maturity [Abstract]
2021	$ 83,321
2022	115,523
2023	11,667
2024	6,194
2025	3,932
Thereafter	1,622
Total time deposits	$ 222,259	$ 272,025

DEPOSITS - Narrative (Details)

DEPOSITS - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Statistical Disclosure for Banks [Abstract]
Time deposits at or above FDIC limit	$ 44.2	$ 31.2
CDARS deposits	66.7	123.8
Deposits from Workers United and other related entities	94.7	95.8
State and municipal deposits	$ 47.9	$ 15.2

BORROWED FUNDS - Narrative (Det

BORROWED FUNDS - Narrative (Details) $ in Millions	Sep. 30, 2021USD ($)
Financial Instruments Owned and Pledged as Collateral [Line Items]
Other eligible assets pledged as collateral	$ 1,400
Required percentage of pledged assets to FHLBNY of outstanding advances	110.00%
Compromised Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Other eligible assets pledged as collateral	$ 671.6
Mortgage Loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Other eligible assets pledged as collateral	$ 698

EARNINGS PER SHARE - Narrative

EARNINGS PER SHARE - Narrative (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Number of antidilutive shares (in shares)	368	79

EARNINGS PER SHARE - Schedule o

EARNINGS PER SHARE - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income attributable to Amalgamated Financial Corp.	$ 14,416	$ 12,480	$ 37,013	$ 32,399
Dividends paid on preferred stock	0	0	0	0
Income attributable to common stock	$ 14,416	$ 12,480	$ 37,013	$ 32,399
Weighted average common shares outstanding, basic (in shares)	31,094	31,050	31,216	31,161
Basic earnings per common share (in dollars per share)	$ 0.46	$ 0.40	$ 1.19	$ 1.04
Incremental shares for assumed conversion of options and RSUs (in shares)	368	25	368	79
Weighted average common shares outstanding, diluted (in shares)	31,462	31,075	31,584	31,240
Diluted earnings per common share (in dollars per share)	$ 0.46	$ 0.40	$ 1.17	$ 1.04

EMPLOYEE BENEFIT PLANS - Stock

EMPLOYEE BENEFIT PLANS - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Number of Options
Outstanding, balance at the beginning of the period (in shares)	1,978,560
Granted (in shares)	0
Forfeited/expired (in shares)	(36,520)
Exercised (in shares)	(988,320)
Outstanding, balance at the end of the period (in shares)	953,720	1,978,560
Vested and exercisable (in shares)	953,720
Weighted Average Exercise Price
Outstanding, balance at the beginning of the period (in dollars per share)	$ 13.03
Granted (in dollars per share)	0
Forfeited/expired (in dollars per share)	12.69
Exercised (in dollars per share)	12.88
Outstanding, balance at the end of the period (in dollars per share)	13.20	$ 13.03
Vested and exercisable (in dollars per share)	$ 13.20
Other Disclosures
Options outstanding, weighted average remaining contractual term	5 years	4 years 2 months 12 days
Options vested and exercisable, weighted average remaining contractual term	5 years
Options outstanding, aggregate intrinsic value	$ 2,496
Options exercisable, aggregate intrinsic value	$ 2,496

EMPLOYEE BENEFIT PLANS - Narrat

EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of stock options, minimum (in dollars per share)			$ 11
Exercise price of stock options, maximum (in dollars per share)			$ 14.65
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost			$ 0	$ 0.5
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for stock-based awards (in shares)	1,250,000		1,250,000
Number of shares available for issuance (in shares)	619,154		619,154
Number of shares granted (in shares)			260,355
Fair value of shares granted (in dollars per share)			$ 15.81
Unvested shares (in shares)	418,627		418,627		290,637
Restricted Stock Units | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 0.1	$ 0.1
Unrecognized compensation cost	0		$ 0
Restricted Stock Units | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 0.5	$ 0.5
Number of shares reserved for issuance (in shares)	125,445		125,445
Unrecognized compensation cost, period for recognition			2 years 2 months 12 days
Unrecognized compensation cost	$ 4.6		$ 4.6
Restricted Stock Units | Employee | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of achievable awards (in shares)			356,335
Restricted Stock Units | Employee | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of achievable awards (in shares)			481,780
Time-Based Restricted Stock Units | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)			28,710
Vesting period			1 year
Time-Based Restricted Stock Units | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)			213,348
Vesting period			3 years
Performance Shares | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)			47,007
Performance Shares | Employee | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of achievable awards (in shares)			0
Performance Shares | Employee | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of achievable awards (in shares)			35,196
Performance-Based Restricted Stock Units | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)			23,464
Vesting period			3 years
Market-Based Restricted Stock Units | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)			23,543
Vesting period			3 years
Fair value of shares granted (in dollars per share)			$ 14.95
Market-Based Restricted Stock Units | Employee | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of achievable awards (in shares)			0
Market-Based Restricted Stock Units | Employee | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of achievable awards (in shares)			35,315

EMPLOYEE BENEFIT PLANS - Restri

EMPLOYEE BENEFIT PLANS - Restricted Stock Units Activity (Details) - Restricted Stock Units	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Shares
Unvested at the beginning of the period (in shares) | shares	290,637
Awarded (in shares) | shares	260,355
Forfeited (in shares) | shares	(69,410)
Vested (in shares) | shares	(62,955)
Unvested at the end of the period (in shares) | shares	418,627
Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share) | $ / shares	$ 15.99
Awarded (in dollars per share) | $ / shares	15.81
Forfeited (in dollars per share) | $ / shares	12.88
Vested (in dollars per share) | $ / shares	14.45
Unvested at the end of the period (in dollars per share) | $ / shares	$ 15.56

FAIR VALUE OF FINANCIAL INSTR_3

FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Fair Value of Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 1,955,502	$ 1,539,862
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	1,955,502	1,539,862
Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	201	203
Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	1,955,301	1,539,659
Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Mortgage-related
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	918,193	890,686
GSE residential certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	4,402	13,299
GSE residential certificates | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	4,402	13,299
GSE residential certificates | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
GSE residential certificates | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	4,402	13,299
GSE residential certificates | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
GSE residential CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	425,794	366,421
GSE residential CMOs | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	425,794	366,421
GSE residential CMOs | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
GSE residential CMOs | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	425,794	366,421
GSE residential CMOs | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
GSE commercial certificates & CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	391,201	432,614
GSE commercial certificates & CMO | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	391,201	432,614
GSE commercial certificates & CMO | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
GSE commercial certificates & CMO | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	391,201	432,614
GSE commercial certificates & CMO | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Non-GSE residential certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	39,736	33,384
Non-GSE residential certificates | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	39,736	33,384
Non-GSE residential certificates | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Non-GSE residential certificates | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	39,736	33,384
Non-GSE residential certificates | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Non-GSE commercial certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	57,060	44,968
Non-GSE commercial certificates | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	57,060	44,968
Non-GSE commercial certificates | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Non-GSE commercial certificates | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	57,060	44,968
Non-GSE commercial certificates | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Other debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	1,037,309	649,176
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	201	203
U.S. Treasury | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	201	203
U.S. Treasury | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	201	203
U.S. Treasury | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
U.S. Treasury | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
ABS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	948,350	597,546
ABS | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	948,350	597,546
ABS | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
ABS | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	948,350	597,546
ABS | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Trust preferred
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	14,190	13,773
Trust preferred | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	14,190	13,773
Trust preferred | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Trust preferred | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	14,190	13,773
Trust preferred | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	74,568	37,654
Corporate | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	74,568	37,654
Corporate | Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Corporate | Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	74,568	37,654
Corporate | Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 0	$ 0

FAIR VALUE OF FINANCIAL INSTR_4

FAIR VALUE OF FINANCIAL INSTRUMENTS - Securities Measured on Non-Recurring Basis (Details) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 60,958	$ 67,433
Other real estate owned	307	307
Total value of assets measured on non-recurring basis	61,265	67,740
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	60,958	67,433
Other real estate owned	335	303
Total value of assets measured on non-recurring basis	61,293	67,736
Estimated Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other real estate owned	0	0
Total value of assets measured on non-recurring basis	0	0
Estimated Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other real estate owned	0	0
Total value of assets measured on non-recurring basis	0	0
Estimated Fair Value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	60,958	67,433
Other real estate owned	335	303
Total value of assets measured on non-recurring basis	$ 61,293	$ 67,736

FAIR VALUE OF FINANCIAL INSTR_5

FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Basis and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financial assets:
Available for sale securities	$ 1,955,502	$ 1,539,862
Held to maturity securities	727,161	502,425
Carrying Value
Financial assets:
Cash and cash equivalents	690,246	38,769
Available for sale securities	1,955,502	1,513,409
Held to maturity securities	725,076	494,449
Loans held for sale	6,156	11,178
Loans receivable, net	3,087,466	3,447,306
Resell agreements	130,434	154,779
Accrued interest and dividends receivable	23,337	23,970
Financial liabilities:
Accrued interest payable	176	386
Carrying Value | Deposits payable on demand
Financial liabilities:
Deposits	6,002,247	5,066,687
Carrying Value | Time deposits
Financial liabilities:
Deposits	222,259	272,025
Estimated Fair Value
Financial assets:
Cash and cash equivalents	690,246	38,769
Available for sale securities	1,955,502	1,539,862
Held to maturity securities	727,161	502,425
Loans held for sale	6,156	11,178
Loans receivable, net	3,142,776	3,566,742
Resell agreements	130,434	154,779
Accrued interest and dividends receivable	23,337	23,970
Financial liabilities:
Accrued interest payable	176	386
Estimated Fair Value | Deposits payable on demand
Financial liabilities:
Deposits	6,002,247	5,066,687
Estimated Fair Value | Time deposits
Financial liabilities:
Deposits	222,513	272,451
Estimated Fair Value | Level 1
Financial assets:
Cash and cash equivalents	690,246	38,769
Available for sale securities	201	203
Held to maturity securities	0	0
Loans held for sale	0	0
Loans receivable, net	0	0
Resell agreements	0	0
Accrued interest and dividends receivable	0	0
Financial liabilities:
Accrued interest payable	0
Estimated Fair Value | Level 1 | Deposits payable on demand
Financial liabilities:
Deposits	0	0
Estimated Fair Value | Level 1 | Time deposits
Financial liabilities:
Deposits	0	0
Estimated Fair Value | Level 2
Financial assets:
Cash and cash equivalents	0	0
Available for sale securities	1,955,301	1,539,659
Held to maturity securities	98,868	76,519
Loans held for sale	0	0
Loans receivable, net	0	0
Resell agreements	0	0
Accrued interest and dividends receivable	23,337	23,970
Financial liabilities:
Accrued interest payable	176	386
Estimated Fair Value | Level 2 | Deposits payable on demand
Financial liabilities:
Deposits	6,002,247	5,066,687
Estimated Fair Value | Level 2 | Time deposits
Financial liabilities:
Deposits	222,513	272,451
Estimated Fair Value | Level 3
Financial assets:
Cash and cash equivalents	0	0
Available for sale securities	0	0
Held to maturity securities	628,293	425,906
Loans held for sale	6,156	11,178
Loans receivable, net	3,142,776	3,566,742
Resell agreements	130,434	154,779
Accrued interest and dividends receivable	0	0
Financial liabilities:
Accrued interest payable	0
Estimated Fair Value | Level 3 | Deposits payable on demand
Financial liabilities:
Deposits	0	0
Estimated Fair Value | Level 3 | Time deposits
Financial liabilities:
Deposits	$ 0	$ 0

COMMITMENTS, CONTINGENCIES AN_3

COMMITMENTS, CONTINGENCIES AND OFF BALANCE SHEET RISK - Schedule of Financial Instruments Outstanding Representing Credit Risk (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	$ 723,756	$ 473,451
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	706,497	455,541
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	$ 17,259	$ 17,910

COMMITMENTS, CONTINGENCIES AN_4

COMMITMENTS, CONTINGENCIES AND OFF BALANCE SHEET RISK - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Reserve for credit risk inherent in off balance sheet credit commitments	$ 1.5	$ 1.2
Property Assessed Clean Energy Commitments
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Investment obligations	399
Investment obligations, amount fulfilled	315.7
Other Property Assessed Clean Energy Commitments
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Investment obligations	$ 100

LEASES - Lease Cost and Other I

LEASES - Lease Cost and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021
Leases [Abstract]
Operating lease cost	$ 2,258	$ 6,679
Cash paid for amounts included in the measurement of Operating leases liability	$ 2,566	$ 7,573
Weighted average remaining lease term on operating leases (in years)	5 years	5 years
Weighted average discount rate used for operating leases liability	3.25%	3.26%

LEASES - Remaining Commitments

LEASES - Remaining Commitments of Operating Lease Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2021 remaining	$ 2,621
2022	10,955
2023	10,895
2024	10,525
2025	10,165
Thereafter	9,284
Total undiscounted operating lease payments	54,445
Less: present value adjustment	4,029
Total Operating leases liability	$ 50,416	$ 53,173

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 12,936	$ 12,936
Accumulated amortization of intangible assets	$ 4,600

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS - Schedule of Estimated Amortization Expense (Details) $ in Thousands	Sep. 30, 2021USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021 remaining	$ 301
2022	1,047
2023	888
2024	730
2025	574
Thereafter	913
Total	$ 4,453

VARIABLE INTEREST ENTITIES (Det

VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Maximum exposure to credit loss	$ 16,200		$ 16,200
Unconsolidated Variable Interest Entities
Variable Interest Entity [Line Items]
Tax credit investments included in equity investments	525		525		$ 6,735
Loans and letters of credit commitments	15,636		15,636		11,097
Funded portion of loans and letters of credit commitments	15,636		15,636		$ 11,097
Tax credits and other tax benefits recognized	$ 343	$ 10,786	$ 1,479	$ 12,646

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - Subsequent Event - Subordinated Debt - Fixed-to-Floating Rate Notes $ in Millions	Nov. 08, 2021USD ($)
Subsequent Event [Line Items]
Proceeds from public offering of debt	$ 85
Interest rate	3.25%