10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended: June 30, 2021

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from: __________ to ___________

Commission file number: 001-36441 

Investors Bancorp , Inc.

(Exact name of registrant as specified in its charter)

Delaware			46-4702118
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification Number)
101 JFK Parkway,	Short Hills,	New Jersey	07078
(Address of Principal Executive Offices)			Zip Code

(973) 924-5100

(Registrant’s telephone number)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common	ISBC	The NASDAQ Stock Market

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding twelve months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such requirements for the past 90 days.    Yes  ☑    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☑    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	☑	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐ No  ☑

As of July 30, 2021, the registrant had 361,869,872 shares of common stock, par value $0.01 per share, issued and 247,615,750 outstanding. 

INVESTORS BANCORP, INC.

FORM 10-Q

Index

Part I. Financial Information
		Page
Item 1.	Financial Statements
	Consolidated Balance Sheets as of June 30, 2021 and December 31, 2020 (unaudited)	1
	Consolidated Statements of Income for the Three and Six Months Ended June 30, 2021 and 2020 (unaudited)	2
	Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, 2021 and 2020 (unaudited)	3
	Consolidated Statements of Stockholders’ Equity for the Six Months Ended June 30, 2021 and 2020 (unaudited)	4
	Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2021 and 2020 (unaudited)	5
	Notes to Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	48
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	65
Item 4.	Controls and Procedures	67
Part II. Other Information
Item 1.	Legal Proceedings	68
Item 1A.	Risk Factors	68
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	70
Item 3.	Defaults Upon Senior Securities	70
Item 4.	Mine Safety Disclosures	70
Item 5.	Other Information	70
Item 6.	Exhibits	71
	Signature Page	72

Part I Financial Information

ITEM 1. FINANCIAL STATEMENTS

INVESTORS BANCORP, INC. AND SUBSIDIARY

Consolidated Balance Sheets

(Unaudited)  

	June 30, 2021		December 31, 2020
	(In thousands)
ASSETS
Cash and cash equivalents	$	770,396	170,432
Equity securities	9,698		36,000
Debt securities available-for-sale, at estimated fair value	2,544,415		2,758,437
Debt securities held-to-maturity, net (estimated fair value of $1,253,521 and $1,320,872 at June 30, 2021 and December 31, 2020, respectively)	1,178,812		1,247,853
Loans receivable, net	21,082,521		20,580,451
Loans held-for-sale	—		30,357
Federal Home Loan Bank stock	199,826		159,829
Accrued interest receivable	78,858		79,705
Other real estate owned and other repossessed assets	5,914		7,115
Office properties and equipment, net	134,579		139,663
Operating lease right-of-use assets	200,425		199,981
Net deferred tax asset	115,946		116,805
Bank owned life insurance	226,314		223,714
Goodwill and intangible assets	109,222		109,633
Other assets	145,185		163,184
Total assets	$	26,802,111	26,023,159
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities:
Deposits	$	19,438,966	19,525,419
Borrowed funds	4,033,864		3,295,790
Advance payments by borrowers for taxes and insurance	130,225		115,729
Operating lease liabilities	213,050		212,559
Other liabilities	171,979		163,659
Total liabilities	23,988,084		23,313,156
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value, 100,000,000 authorized shares; none issued	—		—
Common stock, $0.01 par value, 1,000,000,000 shares authorized; 361,869,872 issued at June 30, 2021 and December 31, 2020; 247,601,303 and 247,929,216 outstanding at June 30, 2021 and December 31, 2020, respectively	3,619		3,619
Additional paid-in capital	2,864,559		2,858,663
Retained earnings	1,422,029		1,339,003
Treasury stock, at cost; 114,268,569 and 113,940,656 shares at June 30, 2021 and December 31, 2020, respectively	(1,380,042)		(1,375,996)
Unallocated common stock held by the employee stock ownership plan	(73,772)		(75,270)
Accumulated other comprehensive loss	(22,366)		(40,016)
Total stockholders’ equity	2,814,027		2,710,003
Total liabilities and stockholders’ equity	$	26,802,111	26,023,159

See accompanying notes to consolidated financial statements.

1

INVESTORS BANCORP, INC. AND SUBSIDIARY

Consolidated Statements of Income

(Unaudited)

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(Dollars in thousands, except per share data)
Interest and dividend income:
Loans receivable and loans held-for-sale	$	211,523	217,733	410,273	442,262
Securities:
Equity	63		32	329	65
Government-sponsored enterprise obligations	573		310	1,099	616
Mortgage-backed securities	14,215		20,572	29,417	43,156
Municipal bonds and other debt	3,456		3,276	6,995	6,651
Interest-bearing deposits	38		294	99	1,134
Federal Home Loan Bank stock	1,983		3,997	4,183	8,429
Total interest and dividend income	231,851		246,214	452,395	502,313
Interest expense:
Deposits	15,993		38,991	37,185	92,170
Borrowed funds	21,148		25,236	39,765	54,873
Total interest expense	37,141		64,227	76,950	147,043
Net interest income	194,710		181,987	375,445	355,270
Provision for credit losses	(9,690)		33,278	(12,662)	64,504
Net interest income after provision for credit losses	204,400		148,709	388,107	290,766
Non-interest income
Fees and service charges	4,893		1,376	10,741	7,402
Income on bank owned life insurance	1,552		1,596	3,504	2,992
Gain on loans, net	1,288		3,557	5,121	5,403
Gain on securities, net	283		55	934	257
(Loss) gain on sale of other real estate owned, net	(25)		(89)	52	651
Other income	5,083		3,645	12,725	8,095
Total non-interest income	13,074		10,140	33,077	24,800
Non-interest expense
Compensation and fringe benefits	61,385		55,791	123,812	116,183
Advertising and promotional expense	2,397		2,199	4,626	4,562
Office occupancy and equipment expense	17,075		16,470	35,148	32,421
Federal deposit insurance premiums	3,200		3,400	6,600	7,801
General and administrative	545		593	924	1,127
Professional fees	5,042		4,306	7,971	8,289
Data processing and communication	10,192		9,908	19,328	17,700
Other operating expenses	8,602		7,353	14,390	14,495
Total non-interest expenses	108,438		100,020	212,799	202,578
Income before income tax expense	109,036		58,829	208,385	112,988
Income tax expense	29,229		16,218	56,303	30,865
Net income	$	79,807	42,611	152,082	82,123
Basic earnings per share	$	0.34	0.18	0.65	0.35
Diluted earnings per share	$	0.34	0.18	0.64	0.35
Weighted average shares outstanding
Basic	235,045,023		236,248,296	234,854,494	234,755,591
Diluted	236,497,536		236,382,103	235,936,179	234,927,420

See accompanying notes to consolidated financial statements.

2

INVESTORS BANCORP, INC. AND SUBSIDIARY

Consolidated Statements of Comprehensive Income

(Unaudited)

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Net income	$	79,807	42,611	152,082	82,123
Other comprehensive (loss) income, net of tax:
Change in funded status of retirement obligations	122		299	243	319
Unrealized (losses) gains on debt securities available-for-sale	(3,708)		(997)	(22,028)	36,631
Accretion of loss on debt securities reclassified to held-to-maturity	30		56	61	112
Reclassification adjustment for security gains included in net income	—		—	(299)	—
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	193		277	372	457
Net (losses) gains on derivatives	(2,496)		(7,485)	39,301	(78,133)
Total other comprehensive (loss) income	(5,859)		(7,850)	17,650	(40,614)
Total comprehensive income	$	73,948	34,761	169,732	41,509

See accompanying notes to consolidated financial statements.

3

INVESTORS BANCORP, INC. AND SUBSIDIARY

Consolidated Statements of Stockholders’ Equity

Six Months Ended June 30, 2021 and 2020

(Unaudited)

	Common stock		Additional paid-in capital	Retained earnings	Treasury stock	Unallocated common stock held by ESOP	Accumulated other comprehensive loss	Total stockholders’ equity
	(In thousands)
Balance at December 31, 2019	$	3,591	2,822,364	1,245,793	(1,352,910)	(78,266)	(18,622)	2,621,950
Cumulative effect of adopting ASU No. 2016-13	—		—	(8,491)	—	—	—	(8,491)
Balance at January 1, 2020	3,591		2,822,364	1,237,302	(1,352,910)	(78,266)	(18,622)	2,613,459
Net income	—		—	82,123	—	—	—	82,123
Other comprehensive loss, net of tax	—		—	—	—	—	(40,614)	(40,614)
Common stock issued to finance acquisitions	28		20,853	—	—	—	—	20,881
Purchase of treasury stock (383,366 shares)	—		—	—	(3,361)	—	—	(3,361)
Treasury stock allocated to restricted stock plan (68,923 shares)	—		(736)	(103)	839	—	—	—
Compensation cost for stock options and restricted stock	—		7,850	—	—	—	—	7,850
Restricted stock forfeitures (15,973 shares)	—		197	(3)	(194)	—	—	—
Cash dividend paid ($0.24 per common share)	—		—	(59,714)	—	—	—	(59,714)
ESOP shares allocated or committed to be released	—		778	—	—	1,498	—	2,276
Balance at June 30, 2020	$	3,619	2,851,306	1,259,605	(1,355,626)	(76,768)	(59,236)	2,622,900
Balance at December 31, 2020	$	3,619	2,858,663	1,339,003	(1,375,996)	(75,270)	(40,016)	2,710,003
Net income	—		—	152,082	—	—	—	152,082
Other comprehensive income, net of tax	—		—	—	—	—	17,650	17,650
Purchase of treasury stock (964,114 shares)	—		—	—	(11,958)	—	—	(11,958)
Treasury stock allocated to restricted stock plan (239,166 shares)	—		(3,149)	185	2,964	—	—	—
Compensation cost for stock options and restricted stock	—		7,167	—	—	—	—	7,167
Exercise of stock options	—		(133)	—	5,195	—	—	5,062
Restricted stock forfeitures (20,567 shares)	—		241	6	(247)	—	—	—
Cash dividend paid ($0.28 per common share)	—		—	(69,247)	—	—	—	(69,247)
ESOP shares allocated or committed to be released	—		1,770	—	—	1,498	—	3,268
Balance at June 30, 2021	$	3,619	2,864,559	1,422,029	(1,380,042)	(73,772)	(22,366)	2,814,027

See accompanying notes to consolidated financial statements.

4

INVESTORS BANCORP, INC. AND SUBSIDIARY

Consolidated Statements of Cash Flows

(Unaudited)

	Six Months Ended June 30,
	2021		2020
	(In thousands)
Cash flows from operating activities:
Net income	$	152,082	82,123
Adjustments to reconcile net income to net cash provided by operating activities:
ESOP and stock-based compensation expense	10,435		10,126
Amortization of premiums and accretion of discounts on securities, net	4,788		5,060
Amortization of premiums and accretion of fees and costs on loans, net	2,445		2,885
Amortization of other intangible assets	538		680
Amortization of debt modification costs and premium on borrowings	1,074		1,132
Provision for credit losses	(12,662)		64,504
Loss from extinguishment of debt	—		326
Depreciation and amortization of office properties and equipment	10,797		10,671
Gain on securities, net	(934)		(257)
Mortgage loans originated for sale	(143,238)		(280,236)
Proceeds from mortgage loan sales	178,378		275,328
Gain on sales of mortgage loans, net	(4,783)		(5,062)
Gain on sale of other real estate owned	(52)		(651)
Income on bank owned life insurance	(3,504)		(2,992)
Amortization of lease right-of-use assets	12,764		9,841
Decrease (increase) in accrued interest receivable	847		(1,013)
Deferred tax benefit	(7,777)		(16,903)
Decrease (increase) in other assets	59,332		(71,498)
Increase (decrease) in other liabilities	6,007		(74,517)
Net cash provided by operating activities	266,537		9,547
Cash flows from investing activities:
Purchases of loans receivable	(60,413)		(60,000)
Net (originations) payoffs of loans receivable	(470,849)		819,559
Proceeds from disposition of loans receivable	43,795		26,755
Gain on disposition of loans receivable	(338)		(341)
Gain on disposition of leased equipment	(1,297)		(1,824)
Net proceeds from sale of other real estate owned	1,253		5,617
Proceeds from sales of equity securities	32,872		—
Proceeds from principal repayments/calls/maturities of debt securities available for sale	537,575		411,671
Proceeds from sales of debt securities available for sale	8,171		—
Proceeds from principal repayments/calls/maturities of debt securities held to maturity	185,874		126,260
Purchases of equity securities	(6,035)		(45)
Purchases of debt securities available for sale	(364,656)		(507,598)
Purchases of debt securities held to maturity	(115,825)		(170,348)
Proceeds from redemptions of Federal Home Loan Bank stock	55,787		98,053
Purchases of Federal Home Loan Bank stock	(95,784)		(60,042)
Purchases of office properties and equipment	(5,713)		(6,181)
Death benefit proceeds from bank owned life insurance, net	904		—
Cash received, net of cash consideration paid for acquisitions	—		7,274
Net cash (used in) provided by investing activities	(254,679)		688,810

5

Cash flows from financing activities:
Net (decrease) increase in deposits	(86,453)		1,137,083
Repayments of principal under finance leases	(794)		(784)
Net proceeds (repayments) of borrowed funds	737,000		(1,211,404)
Net increase in advance payments by borrowers for taxes and insurance	14,496		142
Dividends paid	(69,247)		(59,714)
Exercise of stock options	5,062		—
Purchase of treasury stock	(11,958)		(3,361)
Net cash provided by (used in) financing activities	588,106		(138,038)
Net increase in cash and cash equivalents	599,964		560,319
Cash and cash equivalents at beginning of period	170,432		174,915
Cash and cash equivalents at end of period	$	770,396	735,234
Supplemental cash flow information:
Non-cash investing activities:
Real estate acquired through foreclosure and other assets repossessed	$	—	750
Cash paid during the year for:
Interest	79,208		154,370
Income taxes	48,025		6,218
Significant non-cash transactions:
Right-of-use assets obtained in exchange for new lease liabilities	13,234		4,140
Acquisition:
Non-cash assets acquired:
Debt securities available-for-sale	—		51,524
Debt securities held to maturity	—		8,402
Loans receivable, net	—		443,499
Office properties and equipment, net	—		485
Accrued interest receivable	—		1,283
Right of use assets - leases	—		3,697
Deferred tax asset	—		3,915
Intangible assets, net	—		14,491
Other assets	—		705
Total non-cash assets acquired	—		528,001
Liabilities assumed:
Deposits	—		489,881
Borrowed funds	—		14,851
Advance payment by borrowers	—		3,611
Other liabilities	—		6,051
Total liabilities assumed	—		514,394
Net non-cash assets acquired	—		13,607
Common stock issued for acquisitions	—		20,881

See accompanying notes to consolidated financial statements.

6

INVESTORS BANCORP, INC. AND SUBSIDIARY

Notes to Consolidated Financial Statements

1.     Summary of Significant Accounting Principles

Basis of Presentation

    The consolidated financial statements are comprised of the accounts of Investors Bancorp, Inc. and its wholly owned subsidiary, Investors Bank (the “Bank”) and the Bank’s wholly-owned subsidiaries (collectively, the “Company”). All significant intercompany transactions have been eliminated in consolidation. In the opinion of management, all the adjustments (consisting of normal and recurring adjustments) necessary for the fair presentation of the consolidated financial condition and the consolidated results of operations for the unaudited periods presented have been included. The results of operations and other data presented for the three and six months ended June 30, 2021 are not necessarily indicative of the results of operations that may be expected for subsequent periods or the full year results.

    Certain information and note disclosures usually included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for the preparation of the Form 10-Q. The consolidated financial statements presented should be read in conjunction with the Company’s audited consolidated financial statements and notes to the audited consolidated financial statements included in the Company’s December 31, 2020 Annual Report on Form 10-K. Certain reclassifications have been made in the consolidated financial statements to conform with current year classifications.

The accounting and reporting policies of the Company conform to U.S. GAAP and to general practice within the financial services industry. A discussion of these policies can be found in Note 1, Summary of Significant Accounting Policies, included in the Company’s 2020 Annual Report on Form 10-K. There have been no changes to the Company’s significant accounting policies since December 31, 2020.

2.     Stock Transactions

Stock Repurchase Program

    On October 25, 2018, the Company announced its fourth share repurchase program, which authorized the purchase of 10% of its publicly-held outstanding shares of common stock, or 28,886,780 shares. The fourth program commenced immediately upon completion of the third program on December 10, 2018. This program has no expiration date and has 12,000,202 shares yet to be repurchased as of June 30, 2021.

    During the six months ended June 30, 2021, the Company purchased approximately 1.0 million shares at a cost of $12.0 million, or $12.40 per share. During the six months ended June 30, 2021, shares repurchased include 339,114 shares purchased in connection with the vesting of shares of restricted stock under our 2015 Equity Incentive Plan and the withholding of shares to pay income taxes. These shares are repurchased pursuant to the terms of the 2015 Equity Incentive Plan and therefore are not part of the Company’s repurchase program.

3.     Business Combinations

Berkshire Bank Branch Acquisition

On December 2, 2020, Investors Bancorp announced the signing of a definitive purchase and assumption agreement under which Investors Bancorp’s wholly-owned subsidiary, Investors Bank, will acquire the eight New Jersey and eastern Pennsylvania branches of Berkshire Bank, the wholly-owned subsidiary of Berkshire Hills Bancorp, including the assumption and acquisition of approximately $633 million of deposits and $253 million of consumer and commercial loans. Regulatory approval for the transaction was received in July 2021. The transaction is not reflected in the Consolidated Financial Statements as of June 30, 2021. Refer to Note 19, Subsequent Events, for further details.

Gold Coast Bancorp    

    As of the close of business on April 3, 2020, the Company completed its acquisition of Gold Coast Bancorp (“Gold Coast”) pursuant to the Agreement and Plan of Merger, dated as of July 24, 2019 by and between the Company and Gold Coast. As a result of the completion of the acquisition, the Company issued approximately 2.8 million shares to the former stockholders of Gold Coast and paid approximately $31.0 million in cash to the former stockholders of Gold Coast. Under the terms of the merger agreement, 50% of the common shares of Gold Coast were converted into Investors Bancorp common stock and the remaining 50% was exchanged for cash. For each share of Gold Coast Bancorp common stock, Gold Coast shareholders were given an option to receive either (i) 1.422 shares of Investors Bancorp common stock, $0.01 par value per

7

share, (ii) a cash payment of $15.75, or (iii) a combination of Investors Bancorp common stock and cash. The foregoing was subject to proration to ensure that, in the aggregate, 50% of Gold Coast’s shares would be converted into Investors Bancorp common stock.

    The acquisition was accounted for under the acquisition method of accounting as prescribed by Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 805 “Business Combinations”, as amended. Under this method of accounting, the purchase price has been allocated to the respective assets acquired based on their estimated fair values, net of applicable income tax effects. The excess cost over fair value of assets acquired, or $12.0 million, has been recorded as goodwill.

    The acquired portfolio was fair valued on the date of acquisition based on guidance from ASC 820-10 which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The valuation methods utilized took into consideration adjustments for interest rate risk, funding cost, servicing cost, residual risk, credit and liquidity risk. The accounting for the acquisition of Gold Coast is complete and is reflected in our Consolidated Financial Statements.

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the date of acquisition for Gold Coast, net of cash consideration paid:

	At April 3, 2020
	(In millions)
Cash and cash equivalents	$	7.3
Debt securities available-for-sale	51.5
Debt securities held to maturity	8.4
Loans receivable, net	443.5
Accrued interest receivable	1.3
Right-of-use assets	3.7
Net deferred tax asset	3.9
Intangible assets	14.5
Other assets	1.2
Total assets acquired	535.3
Deposits	489.9
Borrowed funds	14.9
Other liabilities	9.7
Total liabilities assumed	514.5
Net assets acquired	$	20.8

    Financial assets acquired in a business combination after January 1, 2020 are recorded in accordance with ASC Topic 326, after which acquired assets are separated into two types. PCD assets are acquired assets that, as of the acquisition date, have experienced a more-than-insignificant deterioration in credit quality since origination. Non-PCD assets are acquired assets that have experienced no or insignificant deterioration in credit quality since origination. To distinguish between the two types of acquired assets, the Company evaluates risk characteristics that have been determined to be indicators of deteriorated credit quality. In the case of loans, the determining criteria may involve general characteristics, such as loan payment history or changes in creditworthiness since the loan was originated, while others are relevant to recent economic conditions, such as borrowers in industries impacted by the pandemic.

In its acquisition of Gold Coast, the Company has purchased loans which have been determined to be PCD. The carrying amount of those loans was as follows:

	At April 3, 2020
	(In millions)
Purchase price of loans at acquisition	$	244.7
Allowance for credit losses at acquisition	4.2
Non-credit discount at acquisition	2.6
Par value of acquired loans at acquisition	$	251.5

8

Fair Value Measurement of Assets Acquired and Liabilities Assumed

    Described below are the methods used to determine the fair values of the significant assets acquired and liabilities assumed in the Gold Coast acquisition based on guidance from ASC 820-10 which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date.

Securities. The securities acquired are bought and sold in active markets. The estimated fair values of securities were calculated using external third party broker opinions of the market values. Due to the instability of the market at the time of acquisition as well as the odd lot position sizes of the securities, the Company reviewed the data and assumptions used in pricing the securities by third-parties and made qualitative adjustments to reflect the then current market conditions and the characteristics of each position.

Loans. The estimated fair values of the loan portfolio generally consider adjustments for interest rate risk, required funding costs, servicing costs, prepayments, credit and liquidity. Level 3 inputs were utilized to determine the fair value of the acquired loan portfolio and included the use of present value techniques employing cash flow estimates and incorporated assumptions that market participants would use in estimating fair values. In instances where reliable market information was not available, the Company used its own assumptions in an effort to determine fair value. The primary approach to determining the fair value of the loan portfolio was a discounted cash flow methodology that considered factors including the type of loan, underlying collateral, classification status or grade, interest rate structure (fixed or variable interest rate), and remaining term. For the non-credit component, loans were grouped together according to similar characteristics when applying the various valuations techniques. For the credit component, loans were also grouped based on whether they had more than insignificant deterioration in credit since origination (purchase credit deteriorated “PCD” as defined by ASC 326-20). The expected life of loan loss estimates were calculated based on an annual loss rate developed by using the historical annual average charge-off percentages for New York institutions as a proxy for how a market participant acquirer would value the portfolio. Additionally, a qualitative credit adjustment was applied to the historical annual loss rates, due to COVID-19 and the uncertainty of future losses.

Deposits / Core Deposit Intangible. The core deposit intangible represents the value assigned to the stable and below market rate funding sources within the acquired deposit base; typically demand deposits, interest checking, money market and savings accounts. The core deposit intangible value represents the value of the relationships with deposit customers as a below market rate funding source. The fair value was based on a discounted cash flow methodology that gave appropriate consideration to expected deposit attrition rates, net maintenance costs of the deposit base, projected interest costs and alternative funding costs. Certificates of deposit (time deposits) are not considered to be core deposits as they typically are less stable and generally do not have an “all-in” favorable funding advantage to alternative funding costs. The fair value of certificates of deposit represents the present value of the certificates’ expected contractual payments discounted by market rates for similar certificates and is determined utilizing Level 2 inputs.

Borrowed Funds. A discounted cash flow approach was used to determine the fair value of the debt acquired. The fair value of the liability represents the present value of the expected payments discounted using a risk adjusted discount rate. The discount rate was developed based on comparable rated securities, as that backed by companies with similar credit ratings as the Company.

9

4.     Earnings Per Share

The following is a summary of our earnings per share calculations and reconciliation of basic to diluted earnings per share.

	For the Three Months Ended June 30,
	2021		2020
	(Dollars in thousands, except per share data)
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$	79,807	$	42,611
Shares
Weighted-average common shares outstanding - basic	235,045,023		236,248,296
Effect of dilutive common stock equivalents (1)	1,452,513		133,807
Weighted-average common shares outstanding - diluted	236,497,536		236,382,103
Earnings per common share
Basic	$	0.34	$	0.18
Diluted	$	0.34	$	0.18

(1) For the three months ended June 30, 2021 and 2020, there were 12,437 and 7,442,906 equity awards, respectively, that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented.

	For the Six Months Ended June 30,
	2021		2020
	(Dollars in thousands, except per share data)
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$	152,082	$	82,123
Shares
Weighted-average common shares outstanding - basic	234,854,494		234,755,591
Effect of dilutive common stock equivalents (1)	1,081,685		171,829
Weighted-average common shares outstanding - diluted	235,936,179		234,927,420
Earnings per common share
Basic	$	0.65	$	0.35
Diluted	$	0.64	$	0.35

(1) For the six months ended June 30, 2021 and 2020, there were 207,128 and 6,378,766 equity awards, respectively, that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented.

10

5.     Securities

Equity Securities

    Equity securities are reported at fair value on the Company’s Consolidated Balance Sheets. The Company’s portfolio of equity securities had an estimated fair value of $9.7 million and $36.0 million as of June 30, 2021 and December 31, 2020, respectively. Realized gains and losses from sales of equity securities, as well as changes in fair value of equity securities still held at the reporting date are recognized in the Consolidated Statements of Income.

The following table presents the disaggregated net gains and losses on equity securities reported in the Consolidated Statements of Income:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Unrealized gains recognized on equity securities	$	73	28	784	107
Net gains (losses) recognized on equity securities sold	210		—	(248)	—
Net gains recognized on equity securities	$	283	28	536	107

Debt Securities

The following tables present the amortized cost, gross unrealized gains and losses, and estimated fair value for available-for-sale debt securities and the amortized cost, net unrealized losses, carrying value, gross unrecognized gains and losses, estimated fair value and allowance for credit losses for held-to-maturity debt securities as of the dates indicated.

	At June 30, 2021
	Amortized cost		Gross unrealized gains	Gross unrealized losses	Estimated fair value
	(In thousands)
Available-for-sale:
Debt securities:
Government-sponsored enterprises	$	3,870	194	—	4,064
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,169,804		22,844	2,780	1,189,868
Federal National Mortgage Association	1,165,272		27,310	4,280	1,188,302
Government National Mortgage Association	159,671		2,998	488	162,181
Total mortgage-backed securities available-for-sale	2,494,747		53,152	7,548	2,540,351
Total debt securities available-for-sale	$	2,498,617	53,346	7,548	2,544,415

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	At June 30, 2021
	Amortized cost		Net unrealized losses (1)	Carrying value	Gross unrecognized gains (2)	Gross unrecognized losses (2)	Estimated fair value
	(In thousands)
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	$	133,579	—	133,579	3,129	2,112	134,596
Municipal bonds	212,706		—	212,706	14,012	11	226,707
Corporate and other debt securities	146,150		13,127	133,023	36,879	240	169,662
Total debt securities held-to-maturity	492,435		13,127	479,308	54,020	2,363	530,965
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	293,877		44	293,833	6,420	2,309	297,944
Federal National Mortgage Association	377,418		117	377,301	15,996	325	392,972
Government National Mortgage Association	30,449		—	30,449	1,191	—	31,640
Total mortgage-backed securities held-to-maturity	701,744		161	701,583	23,607	2,634	722,556
Total debt securities held-to-maturity	$	1,194,179	13,288	1,180,891	77,627	4,997	1,253,521
Allowance for credit losses				2,079
Total debt securities held-to-maturity, net of allowance for credit losses				1,178,812

(1) Net unrealized losses of held-to-maturity corporate and other debt securities represent the other than temporary impairment related to other non-credit factors recorded prior to the adoption of the current expected credit losses accounting standard on January 1, 2020 that is being amortized through accumulated other comprehensive income over the remaining life of the securities. For mortgage-backed securities, it represents the net loss on previously designated available-for-sale debt securities transferred to held-to-maturity at fair value and is being amortized through accumulated other comprehensive income over the remaining life of the securities.

(2) Unrecognized gains and losses of held-to-maturity debt securities are not reflected in the financial statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other than temporary impairment charge is recognized on a held-to-maturity security, through the date of the balance sheet. Effective January 1, 2020, held-to-maturity debt securities are evaluated for credit losses to determine if an allowance is necessary. Any allowance required is recorded through the provision for credit losses.

	At December 31, 2020
	Amortized cost		Gross unrealized gains	Gross unrealized losses	Estimated fair value
	(In thousands)
Available-for-sale:
Debt securities:
Government-sponsored enterprises	$	4,260	222	—	4,482
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,286,195		30,930	73	1,317,052
Federal National Mortgage Association	1,167,057		38,568	199	1,205,426
Government National Mortgage Association	225,810		5,700	33	231,477
Total mortgage-backed securities available-for-sale	2,679,062		75,198	305	2,753,955
Total debt securities available-for-sale	$	2,683,322	75,420	305	2,758,437

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	At December 31, 2020
	Amortized cost		Net unrealized losses (1)	Carrying value	Gross unrecognized gains (2)	Gross unrecognized losses (2)	Estimated fair value
	(In thousands)
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	$	109,016	—	109,016	4,107	709	112,414
Municipal bonds	246,601		—	246,601	14,990	—	261,591
Corporate and other debt securities	144,209		13,644	130,565	20,033	885	149,713
Total debt securities held-to-maturity	499,826		13,644	486,182	39,130	1,594	523,718
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	308,285		66	308,219	9,733	266	317,686
Federal National Mortgage Association	413,601		175	413,426	20,905	—	434,331
Government National Mortgage Association	43,290		—	43,290	1,847	—	45,137
Total mortgage-backed securities held-to-maturity	765,176		241	764,935	32,485	266	797,154
Total debt securities held-to-maturity	$	1,265,002	13,885	1,251,117	71,615	1,860	1,320,872
Allowance for credit losses				3,264
Total debt securities held-to-maturity, net of allowance for credit losses				1,247,853

(1) Net unrealized losses of held-to-maturity corporate and other debt securities represent the other than temporary impairment related to other non-credit factors recorded prior to the adoption of the current expected credit losses accounting standard on January 1, 2020 that is being amortized through accumulated other comprehensive income over the remaining life of the securities. For mortgage-backed securities, it represents the net loss on previously designated available-for-sale debt securities transferred to held-to-maturity at fair value and is being amortized through accumulated other comprehensive income over the remaining life of the securities.

(2) Unrecognized gains and losses of held-to-maturity debt securities are not reflected in the financial statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other than temporary impairment charge is recognized on a held-to-maturity security, through the date of the balance sheet. Effective January 1, 2020, held-to-maturity debt securities are evaluated for credit losses to determine if an allowance is necessary. Any allowance required is recorded through the provision for credit losses.

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Gross unrealized losses on debt securities and the estimated fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2021 and December 31, 2020, were as follows:

	June 30, 2021
	Less than 12 months			12 months or more		Total
	Estimated fair value		Unrealized losses	Estimated fair value	Unrealized losses	Estimated fair value	Unrealized losses
	(In thousands)
Available-for-sale:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	178,126	2,780	—	—	178,126	2,780
Federal National Mortgage Association	316,984		4,244	98,285	36	415,269	4,280
Government National Mortgage Association	32,773		488	—	—	32,773	488
Total debt securities available-for-sale	527,883		7,512	98,285	36	626,168	7,548
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	89,991		2,112	—	—	89,991	2,112
Municipal bonds	3,123		11	—	—	3,123	11
Corporate and other debt securities	6,789		240	—	—	6,789	240
Total debt securities held-to-maturity	99,903		2,363	—	—	99,903	2,363
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	116,358		2,309	—	—	116,358	2,309
Federal National Mortgage Association	41,064		325	—	—	41,064	325
Total mortgage-backed securities held-to-maturity	157,422		2,634	—	—	157,422	2,634
Total debt securities held-to-maturity	257,325		4,997	—	—	257,325	4,997
Total	$	785,208	12,509	98,285	36	883,493	12,545

	December 31, 2020
	Less than 12 months			12 months or more		Total
	Estimated fair value		Unrealized losses	Estimated fair value	Unrealized losses	Estimated fair value	Unrealized losses
	(In thousands)
Available-for-sale:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	60,502	73	—	—	60,502	73
Federal National Mortgage Association	123,329		199	—	—	123,329	199
Government National Mortgage Association	9,062		33	—	—	9,062	33
Total debt securities available-for-sale	192,893		305	—	—	192,893	305
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	66,558		709	—	—	66,558	709
Corporate and other debt securities	15,038		885	—	—	15,038	885
Total debt securities held-to-maturity	81,596		1,594	—	—	81,596	1,594
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	40,013		266	—	—	40,013	266
Total debt securities held-to-maturity	121,609		1,860	—	—	121,609	1,860
Total	$	314,502	2,165	—	—	314,502	2,165

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    We conduct periodic reviews of individual securities to assess whether an allowance for credit loss is required. Held-to-maturity debt securities are evaluated for expected credit loss utilizing a historical loss methodology, or a discounted cash flows approach which is assessed against the book value of the investment security excluding accrued interest. Available-for-sale debt securities are evaluated to determine if a decline in fair value below the amortized cost basis has resulted from a credit loss or other factors. An impairment on available-for-sale securities related to credit factors would be recorded through an allowance for credit losses. The allowance would be limited to the amount by which the security’s amortized cost basis exceeds the fair value. An impairment on available-for-sale securities that has not been recorded through an allowance for credit losses shall be recorded through other comprehensive income, net of applicable taxes. Investment securities will be written down to fair value through the consolidated statement of income when management intends to sell (or may be required to sell) the securities before they recover in value.

    The majority of our held-to-maturity debt securities portfolio is comprised of agency mortgage-backed securities. For agency (FNMA, FHLMC and GNMA) mortgage-backed securities, and other agency debt instruments, the expectation of non-payment is zero. The timely payment of principal and interest on FNMA and FHLMC securities is guaranteed by each corporation. As each of these corporations is in conservatorship with the federal government, the payment guarantees are considered implicit obligations of the US government. GNMA securities carry the full faith and credit guarantee of the federal government. Because of the existence of government guarantees of timely payment of principal and interest, expected losses on agency securities are assumed to be zero. Changes in the fair value of agency securities in this portfolio are primarily driven by changes in interest rates and other non-credit related factors. At June 30, 2021, our held-to-maturity debt securities portfolio had an allowance for credit losses of $2.1 million. The allowance is related to non-agency corporate and other debt securities. The majority of the allowance is related to a portfolio of collateralized debt obligations backed by pooled TruPS, principally issued by banks and to a lesser extent insurance companies and real estate investment trusts. At June 30, 2021, the TruPS had a carrying value before allowance for credit losses and estimated fair value of $50.5 million and $83.7 million, respectively. The Company does not have the intent to sell these securities and does not believe it is more likely than not that the Company will be required to sell these securities before a recovery of amortized cost. Refer to Note 7, Allowance for Credit Losses, for additional information on the Company’s allowance for credit losses.

    At June 30, 2021, the available-for-sale debt securities portfolio was almost entirely comprised of agency securities. As such, the unrealized losses in this portfolio are primarily driven by changes in interest rates and other non-credit related factors. The Company does not have the intent to sell these securities and does not believe it is more likely than not that the Company will be required to sell these securities before a recovery of amortized cost. As of June 30, 2021, there is no allowance for credit losses related to the Company’s available-for-sale debt securities as the decline in fair value did not result from credit issues.

    Debt securities with a carrying value before allowance for credit losses of $1.80 billion and an estimated fair value of $1.85 billion are pledged to secure borrowings and municipal deposits. The contractual maturities of the Bank’s mortgage-backed securities are generally less than 20 years with effective lives expected to be shorter due to prepayments. Expected maturities may differ from contractual maturities due to underlying loan prepayments or early call privileges of the issuer; therefore, mortgage-backed securities are not included in the following table. Excluding the allowance for credit losses, the amortized cost and estimated fair value of debt securities other than mortgage-backed securities at June 30, 2021, by contractual maturity, are shown below. 

	June 30, 2021
	Carrying value		Estimated fair value
	(In thousands)
Due in one year or less	$	10,489	10,506
Due after one year through five years	9,480		9,641
Due after five years through ten years	164,615		168,579
Due after ten years	298,594		346,303
Total	$	483,178	535,029

Gains and Losses

    Gains and losses on the sale of all securities are determined using the specific identification method. For the three months ended June 30, 2021, the Company received proceeds of $16.3 million from the sale of equity securities which resulted in a net gain of $210,000. For the six months ended June 30, 2021, the Company received proceeds of $32.9 million from the sale of equity securities which resulted in a net loss of $248,000. In addition, the Company received proceeds of $8.2 million from the sale of available-for-sale debt securities which resulted in gains of $398,000 for the six months ended June 30, 2021.

15

The Company recognized net unrealized gains on equity securities of $73,000 and $784,000, respectively, for the three and six months ended June 30, 2021.

    For the three and six months ended June 30, 2020, there were no sales of securities; however, the Company received proceeds of $16.5 million from the call of a held-to-maturity debt security which resulted in a gain of $124,000 during the six months ended June 30, 2020. The Company recognized net unrealized gains on equity securities of $28,000 and $107,000, respectively, for the three and six months ended June 30, 2020.

6.    Loans Receivable, Net

On January 1, 2020, the Company adopted ASU 2016-13, “Financial Instruments- Credit Losses (Topic 326)” that is referred to as the current expected credit loss methodology, (“CECL”) for measuring credit losses. Refer to Note 7, Allowance for Credit Losses, for further details. All disclosures as of and for the six months ended June 30, 2021 and December 31, 2020 are presented in accordance with Topic 326.

The detail of the loan portfolio as of June 30, 2021 and December 31, 2020 was as follows:

	June 30, 2021		December 31, 2020
	(In thousands)
Multi-family loans	$	7,566,131	7,122,840
Commercial real estate loans	4,968,393		4,947,212
Commercial and industrial loans	3,766,551		3,575,641
Construction loans	464,887		404,367
Total commercial loans	16,765,962		16,050,060
Residential mortgage loans	3,887,917		4,119,894
Consumer and other loans	712,147		702,801
Total loans	21,366,026		20,872,755
Deferred fees, premiums and accretable purchase accounting adjustments, net	(13,391)		(9,318)
Allowance for credit losses	(270,114)		(282,986)
Net loans	$	21,082,521	20,580,451

Credit Quality Indicators

    The Company has lending policies and procedures that provide target market, underwriting and other criteria for identified lending segments to codify the level of credit risk the Company is willing to accept. Approval authority levels are delegated to qualified individuals and approval bodies for the extension of credit within the guidance of these policies and procedures. In addition, the Company maintains an independent loan review department that reviews and validates risk assessment on a continual basis.

    The Company assigns ratings to borrowers and transactions based on the assessment of a borrower’s ability to service their debt based on relevant information such as: current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors.

    In connection with the adoption of CECL on January 1, 2020, the Company implemented new risk rating models for borrowers and transactions within its commercial loan portfolio. The risk rating methodology transitioned to a dual risk rating framework which bifurcates ratings into probability of default (PD) and loss given default (LGD). Relevant risks are evaluated prior to approving a transaction to determine if the transaction is within the Company’s risk appetite and the appropriate rating. Strong credit analysis requires current, reliable financial information and documented assessment of the customer’s:

•ability to perform in accordance with the terms of the credit, including adherence to covenants;

•assets and liabilities, liquidity, net worth, and contingent and other off-balance sheet items;

•tax liabilities;

•cash reserves and ability to convert assets to cash;

•income statement and the sources, level, stability, and quality of earnings;

•projected performance, sensitized for stressed circumstances; and

•industry performance relative to peers and industry.

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    Each commercial credit facility is assigned a PD and LGD rating for the purpose of informing a credit decision, facilitating the determination of the expected level of credit loss and other portfolio management activities (as well as relationship profitability). The dual risk rating framework and risk rating methodologies allow for consistent determination of risk across the Commercial business as indicated by the risk rating assigned. The methodology used by the Bank applies the same criteria for identification of a credit as for the regulatory definitions of risk ratings:

Pass - “Pass” assets are well protected by the current net worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less cost to acquire and sell, of any underlying collateral in a timely manner.

Watch - A “Watch” asset has all the characteristics of a Pass asset but warrants more than the normal level of supervision. These loans may require more detailed reporting to management because some aspects of underwriting may not conform to policy or adverse events may have affected or could affect the cash flow or ability to continue operating profitably, provided, however, the events do not constitute an undue credit risk. Residential and consumer loans delinquent 30-59 days are considered watch if not a troubled debt restructuring (“TDR”). In addition, any residential or consumer loan currently on deferment in accordance with the CARES Act or the interagency statement issued by bank regulatory agencies are considered watch.

Special Mention - A “Special Mention” asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special Mention assets are not adversely classified and do not expose an institution to sufficient risk to warrant adverse classification. Residential and consumer loans delinquent 60-89 days are considered special mention if not a TDR.

Substandard - A “Substandard” asset is inadequately protected by the current worth and paying capacity of the obligor or by the collateral pledged, if any. Assets so classified must have a well-defined weakness, or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Residential and consumer loans delinquent 90 days or greater as well as TDRs are considered substandard.

Doubtful - An asset classified “Doubtful” has all the weaknesses inherent in one classified substandard with the added characteristic that the weaknesses make collection or liquidation in full highly questionable and improbable on the basis of currently known facts, conditions, and values.

Loss - An asset or portion thereof, classified “Loss” is considered uncollectible and of such little value that its continuance on the institution’s books as an asset, without establishment of a specific valuation allowance or charge-off, is not warranted. This classification does not necessarily mean that an asset has no recovery or salvage value; but rather, there is much doubt about whether, how much, or when the recovery will occur. As such, it is not practical or desirable to defer the write-off.

17

The following table presents the risk category of loans as of June 30, 2021 by class of loan and vintage year:

	Term Loans by Origination Year
	2021		2020	2019	2018	2017	Prior	Revolving Loans	Total
	(In thousands)
Multi-family
Pass	$	1,218,746	980,598	496,911	785,223	497,921	1,585,057	8,647	5,573,103
Watch	28,615		11,443	135,748	398,023	149,954	514,744	1,340	1,239,867
Special mention	—		—	3,555	71,712	43,175	198,600	—	317,042
Substandard	—		—	10,792	16,627	20,879	385,930	1,891	436,119
Total Multi-family	1,247,361		992,041	647,006	1,271,585	711,929	2,684,331	11,878	7,566,131
Commercial real estate
Pass	409,645		504,617	665,215	554,071	431,283	1,365,363	29,199	3,959,393
Watch	4,585		92,727	109,093	153,269	63,295	200,688	5,199	628,856
Special mention	—		383	7,076	5,247	15,135	109,529	2,846	140,216
Substandard	—		—	—	18,065	45,201	176,662	—	239,928
Total Commercial real estate	414,230		597,727	781,384	730,652	554,914	1,852,242	37,244	4,968,393
Commercial and industrial
Pass	462,248		858,426	573,325	290,068	162,082	454,686	287,706	3,088,541
Watch	7,329		34,038	88,129	40,783	21,319	48,986	41,315	281,899
Special mention	—		16,113	133,747	55,574	12,822	81,686	1,500	301,442
Substandard	—		4,004	3,783	3,948	46,635	31,781	4,518	94,669
Total Commercial and industrial	469,577		912,581	798,984	390,373	242,858	617,139	335,039	3,766,551
Construction
Pass	27,362		131,479	55,821	—	—	—	189,074	403,736
Watch	—		6,950	—	—	—	—	—	6,950
Special mention	—		—	5,350	23,375	—	—	25,476	54,201
Substandard	—		—	—	—	—	—	—	—
Total Construction	27,362		138,429	61,171	23,375	—	—	214,550	464,887
Residential mortgage
Pass	652,580		557,707	321,108	287,958	369,500	1,570,083	—	3,758,936
Watch	—		810	10,711	11,263	11,925	43,340	—	78,049
Special mention	—		—	—	734	—	3,075	—	3,809
Substandard	—		—	1,523	1,933	1,852	41,723	92	47,123
Total residential mortgage	652,580		558,517	333,342	301,888	383,277	1,658,221	92	3,887,917
Consumer and other
Pass	2,076		2,811	4,443	4,695	11,183	43,565	633,223	701,996
Watch	—		—	37	137	2,057	511	4,288	7,030
Special mention	—		—	—	—	—	7	1,148	1,155
Substandard	—		—	—	1	337	1,140	488	1,966
Total Consumer and other	2,076		2,811	4,480	4,833	13,577	45,223	639,147	712,147
All classes
Pass	2,772,657		3,035,638	2,116,823	1,922,015	1,471,969	5,018,754	1,147,849	17,485,705
Watch	40,529		145,968	343,718	603,475	248,550	808,269	52,142	2,242,651
Special mention	—		16,496	149,728	156,642	71,132	392,897	30,970	817,865
Substandard	—		4,004	16,098	40,574	114,904	637,236	6,989	819,805
Total loans	$	2,813,186	3,202,106	2,626,367	2,722,706	1,906,555	6,857,156	1,237,950	21,366,026

18

The following table presents the risk category of loans as of December 31, 2020 by class of loan and vintage year:

	Term Loans by Origination Year
	2020		2019	2018	2017	2016	Prior	Revolving Loans	Total
	(In thousands)
Multi-family
Pass	$	1,002,259	515,446	912,910	601,440	850,781	1,199,133	6,986	5,088,955
Watch	21,366		153,404	374,363	135,348	299,413	220,668	—	1,204,562
Special mention	4,560		—	86,119	32,506	48,020	205,916	—	377,121
Substandard	—		7,285	8,436	17,580	139,975	277,535	1,391	452,202
Total Multi-family	1,028,185		676,135	1,381,828	786,874	1,338,189	1,903,252	8,377	7,122,840
Commercial real estate
Pass	529,244		684,807	646,708	461,097	495,822	1,081,512	32,509	3,931,699
Watch	87,137		132,932	117,598	74,379	61,794	165,702	3,428	642,970
Special mention	375		6,988	5,279	13,295	51,880	71,745	250	149,812
Substandard	—		—	8,212	40,024	29,488	144,758	249	222,731
Total Commercial real estate	616,756		824,727	777,797	588,795	638,984	1,463,717	36,436	4,947,212
Commercial and industrial
Pass	1,007,949		619,275	328,917	156,596	176,557	348,278	203,302	2,840,874
Watch	49,208		115,888	43,791	48,230	28,708	34,697	31,931	352,453
Special mention	16,813		111,399	48,887	14,770	14,102	76,554	798	283,323
Substandard	—		6,128	8,236	42,297	4,341	22,707	15,282	98,991
Total Commercial and industrial	1,073,970		852,690	429,831	261,893	223,708	482,236	251,313	3,575,641
Construction
Pass	85,915		58,041	23,375	—	—	—	197,437	364,768
Watch	6,891		5,350	—	—	—	—	—	12,241
Special mention	—		—	15,228	—	—	—	—	15,228
Substandard	—		—	—	—	—	—	12,130	12,130
Total Construction	92,806		63,391	38,603	—	—	—	209,567	404,367
Residential mortgage
Pass	556,761		450,363	425,617	530,676	407,201	1,601,457	—	3,972,075
Watch	809		12,929	13,465	14,704	8,517	44,299	—	94,723
Special mention	—		—	584	—	—	3,402	—	3,986
Substandard	—		1,523	1,972	1,336	246	43,936	97	49,110
Total residential mortgage	557,570		464,815	441,638	546,716	415,964	1,693,094	97	4,119,894
Consumer and other
Pass	5,031		6,853	5,693	7,448	6,692	57,103	601,481	690,301
Watch	—		39	137	56	156	440	7,655	8,483
Special mention	—		—	—	—	—	292	1,184	1,476
Substandard	—		—	—	—	—	1,796	745	2,541
Total Consumer and other	5,031		6,892	5,830	7,504	6,848	59,631	611,065	702,801
All classes
Pass	3,187,159		2,334,785	2,343,220	1,757,257	1,937,053	4,287,483	1,041,715	16,888,672
Watch	165,411		420,542	549,354	272,717	398,588	465,806	43,014	2,315,432
Special mention	21,748		118,387	156,097	60,571	114,002	357,909	2,232	830,946
Substandard	—		14,936	26,856	101,237	174,050	490,732	29,894	837,705
Total loans	$	3,374,318	2,888,650	3,075,527	2,191,782	2,623,693	5,601,930	1,116,855	20,872,755

19

Delinquent and Non-Accrual Loans

In the absence of other intervening factors, loans granted payment deferrals related to COVID-19 are not reported as past due or placed on non-accrual status in accordance with the CARES Act and Interagency Guidance.

The following tables present the payment status of the recorded investment in past due loans as of June 30, 2021 and December 31, 2020 by class of loans:

	June 30, 2021
	30-59 Days		60-89 Days	Greater than 90 Days	Total Past Due	Current	Total Loans Receivable
	(In thousands)
Commercial loans:
Multi-family	$	16,228	11,126	13,161	40,515	7,525,616	7,566,131
Commercial real estate	717		628	6,395	7,740	4,960,653	4,968,393
Commercial and industrial	14,538		40	3,111	17,689	3,748,862	3,766,551
Construction	—		—	—	—	464,887	464,887
Total commercial loans	31,483		11,794	22,667	65,944	16,700,018	16,765,962
Residential mortgage	8,510		4,118	28,193	40,821	3,847,096	3,887,917
Consumer and other	4,590		1,155	1,447	7,192	704,955	712,147
Total	$	44,583	17,067	52,307	113,957	21,252,069	21,366,026

	December 31, 2020
	30-59 Days		60-89 Days	Greater than 90 Days	Total Past Due	Current	Total Loans Receivable
	(In thousands)
Commercial loans:
Multi-family	$	7,421	—	32,884	40,305	7,082,535	7,122,840
Commercial real estate	12,805		2,450	6,356	21,611	4,925,601	4,947,212
Commercial and industrial	986		3,116	1,769	5,871	3,569,770	3,575,641
Construction	—		—	—	—	404,367	404,367
Total commercial loans	21,212		5,566	41,009	67,787	15,982,273	16,050,060
Residential mortgage	13,768		4,258	29,124	47,150	4,072,744	4,119,894
Consumer and other	5,645		1,476	1,984	9,105	693,696	702,801
Total	$	40,625	11,300	72,117	124,042	20,748,713	20,872,755

The following table presents non-accrual loans at the dates indicated:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Non-accrual:
Multi-family	11	$	16,557	15	$	35,567
Commercial real estate	24	13,027		29	15,894
Commercial and industrial	13	5,200		21	9,212
Construction	—	—		—	—
Total commercial loans	48	34,784		65	60,673
Residential mortgage and consumer	232	42,823		246	46,452
Total non-accrual loans	280	$	77,607	311	$	107,125

The Company recognized $538,000 of interest income on non-accrual loans during the six months ended June 30, 2021.

20

Individually Evaluated Loans

    Loans which do not share common risk characteristics with other loans are individually evaluated as part of the process of calculating the allowance for credit losses. The evaluation is determined on an individual basis using the present value of expected cash flows or the fair value of the collateral as of the reporting date. When management determines that the fair value of collateral securing a collateral dependent loan inadequately covers the balance of net principal, the net principal balance is written down to the fair value of the collateral, net of estimated selling costs as applicable, rather than assigning an allowance. See Note 16, Fair Value Measurements, for information regarding the valuation process for collateral dependent loans.

The following table presents individually evaluated collateral-dependent loans by class of loans at the dates indicated:

	June 30, 2021				December 31, 2020
	Real Estate		Other	Total	Real Estate		Other	Total
	(Dollars in thousands)
Multi-family	$	13,923	—	13,923	$	31,484	—	31,484
Commercial real estate	7,456		—	7,456	8,758		—	8,758
Commercial and industrial	2,645		430	3,075	2,994		3,549	6,543
Construction	—		—	—	—		—	—
Total commercial loans	24,024		430	24,454	43,236		3,549	46,785
Residential mortgage and consumer	23,298		91	23,389	25,158		103	25,261
Total collateral-dependent loans	$	47,322	521	47,843	$	68,394	3,652	72,046

On an annual basis, the Company reviews the lease residuals and assets currently off-lease for potential impairment. For the year ended December 31, 2019, the Company recorded an impairment charge of $2.6 million as the fair value of certain equipment decreased at a rate greater than originally projected. An additional impairment charge of $2.2 million was recorded on the same equipment class during the year ended December 31, 2020 given the extended downturn in the market for these assets. For the six months ended June 30, 2021 there were no additional charges.

TDR Loans Included in Non-Accrual

Included in the non-accrual table above are TDR loans whose payment status is current but the Company has classified as non-accrual as the loans have not maintained their current payment status for six consecutive months under the restructured terms and therefore do not meet the criteria for accrual status. As of June 30, 2021 and December 31, 2020, these loans are comprised of the following:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
TDR with payment status current classified as non-accrual:
Commercial real estate	3	$	4,360	3	$	3,907
Residential mortgage and consumer	31	5,094		32	5,634
Total TDR with payment status current classified as non-accrual	34	$	9,454	35	$	9,541

The following table presents TDR loans which were also 30-89 days delinquent and classified as non-accrual at the dates indicated:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
TDR 30-89 days delinquent classified as non-accrual:
Commercial real estate	1	$	170	1	$	1,780
Residential mortgage and consumer	8	327		10	942
Total TDR 30-89 days delinquent classified as non-accrual	9	$	497	11	$	2,722

21

    The Company has no loans past due 90 days or more delinquent that are still accruing interest.

Guidance on Non-TDR Loan Modifications due to COVID-19

The Company implemented various consumer and commercial loan modification programs to provide its borrowers relief from the economic impacts of COVID-19. In accordance with the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), the Company elected to not apply troubled debt restructuring classification to any COVID-19 related loan modifications that occurred after March 1, 2020 to borrowers who were current as of December 31, 2019. Accordingly, these modifications are exempt from troubled debt restructuring classification under U.S. generally accepted accounting principles (“U.S. GAAP”) and were not classified as troubled debt restructurings (“TDRs”). The Consolidated Appropriations Act of 2021 extends this provision of the CARES Act to January 1, 2022. In addition, for loans modified in response to the COVID-19 pandemic that did not meet the above criteria (e.g., current payment status at December 31, 2019), the Company applied the guidance included in an interagency statement issued by the bank regulatory agencies. For loan modifications that include a payment deferral and are not TDRs, the borrower’s past due and non-accrual status have not been impacted during the deferral period. Interest income has continued to be recognized over the contractual life of the loan.

Troubled Debt Restructurings    

    On a case-by-case basis, the Company may agree to modify the contractual terms of a borrower’s loan to remain competitive and assist customers who may be experiencing financial difficulty, as well as preserve the Company’s position in the loan. If the borrower is experiencing financial difficulties and a concession has been made at the time of such modification, the loan is classified as a TDR.

    Substantially all of our TDR loan modifications involve lowering the monthly payments on such loans through either a reduction in interest rate below a market rate, an extension of the term of the loan, or a combination of these two methods. These modifications rarely result in the forgiveness of principal or accrued interest. In addition, we frequently obtain additional collateral or guarantor support when modifying commercial loans. Restructured loans remain on non-accrual status until payment is reasonably assured (generally six consecutive months of payments) and both principal and interest are deemed collectible.

    Consistent with the CARES Act and interagency guidance which allows temporary relief for current borrowers affected by COVID-19, we have worked with borrowers and granted certain modifications through programs related to COVID-19 relief. At June 30, 2021, loans with an aggregate outstanding balance of approximately $599.0 million have been granted payment deferment as a result of financial disruptions associated with the COVID-19 pandemic. Such modifications that met the criteria are not included in our TDR totals and discussion below.

The following tables present the total TDR loans at June 30, 2021 and December 31, 2020:

	June 30, 2021
	Accrual			Non-accrual			Total
	# of loans	Amount		# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Commercial loans:
Commercial real estate	—	$	—	4	$	4,530	4	$	4,530
Commercial and industrial	1	430		—	—		1	430
Total commercial loans	1	430		4	4,530		5	4,960
Residential mortgage and consumer	48	8,880		76	14,509		124	23,389
Total	49	$	9,310	80	$	19,039	129	$	28,349

22

	December 31, 2020
	Accrual			Non-accrual			Total
	# of loans	Amount		# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Commercial loans:
Commercial real estate	—	$	—	4	$	5,687	4	$	5,687
Commercial and industrial	2	630		2	2,919		4	3,549
Total commercial loans	2	630		6	8,606		8	9,236
Residential mortgage and consumer	45	8,602		83	16,659		128	25,261
Total	47	$	9,232	89	$	25,265	136	$	34,497

The following tables present information about TDRs that occurred during the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment		Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings:
Commercial real estate	1	$	170	$	170	1	$	1,330	$	1,330
Residential mortgage and consumer	4	226		226		—	—		—

	Six Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment		Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings:
Commercial real estate	1	$	170	$	170	1	$	1,330	$	1,330
Commercial and industrial	—	—		—		1	933		933
Residential mortgage and consumer	4	226		226		—	—		—

    Post-modification recorded investment represents the net book balance immediately following modification.

    Collateral dependent loans classified as TDRs were written down to the estimated fair value of the collateral. There were no charge offs of TDRs during the three months ended June 30, 2021. There were $11,000 in charge offs of TDRs of collateral dependent residential loans during the six months ended June 30, 2021. There were $163,000 in charge-offs for TDRs of unsecured commercial and industrial loans during the three and six months ended June 30, 2020. The allowance for credit losses associated with the TDRs presented in the above tables totaled $1.4 million as of June 30, 2021 and December 31, 2020, respectively.

    Loan modifications generally involve the reduction in loan interest rate and/or extension of loan maturity dates and also may include step up interest rates in their modified terms which will impact their weighted average yield in the future. The commercial loan modification which qualified as a TDR in the six months ended June 30, 2021 resulted from a forbearance agreement. The residential loan modifications which qualified as TDRs in the six months ended June 30, 2021 had their maturity extended and/or interest rate reduced to current market terms. One of the commercial loan modifications which qualified as a TDR in the six months ended June 30, 2020 was a loan which had already been on non-accrual status and was granted a 90-day deferral of payment due to circumstances related to COVID-19, while another commercial loan modification which qualified as a TDR in the six months ended June 30, 2020 had its maturity extended.

23

The following table presents information about pre and post modification interest yield for TDRs which occurred during the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield		Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield
Troubled Debt Restructurings:
Commercial real estate	1	6.00	%	6.00	%	1	3.88	%	3.88	%
Residential mortgage and consumer	4	6.82	%	3.07	%	—	—	%	—	%

	Six Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield		Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield
Troubled Debt Restructurings:
Commercial real estate	1	6.00	%	6.00	%	1	3.88	%	3.88	%
Commercial and industrial	—	—	%	—	%	1	4.75	%	4.75	%
Residential mortgage and consumer	4	6.82	%	3.07	%	—	—	%	—	%

    Payment defaults for loans modified as a TDR in the previous 12 months to June 30, 2021 consisted of two commercial real estate loans and five residential loans with a recorded investment of $2.0 million and $1.2 million, respectively. Payment defaults for loans modified as a TDR in the previous 12 months to June 30, 2020 consisted of one residential loan with a recorded investment of $201,000 at June 30, 2020.

Non-Performing Loan Sales

During the six months ended June 30, 2021, the Company sold three non-performing multi-family loans with a net book balance of $19.9 million. The Company recognized a recovery of $1.4 million in the allowance for credit losses on the sale of one of the loans. Also during the six months ended June 30, 2021, the Company sold a non-performing commercial real estate loan with a net book balance of $762,000.

24

7.    Allowance for Credit Losses

    On January 1, 2020, the Company adopted ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”, which replaces the incurred loss methodology with an expected loss methodology that is referred to as the CECL methodology.

An analysis of the provision for credit losses is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Provision for loan losses	$	(14,452)	29,924	(15,413)	56,676
Provision for debt securities held-to-maturity	(259)		249	(1,185)	680
Provision for off-balance sheet credit exposures	5,021		3,105	3,936	7,148
Total provision for credit losses	$	(9,690)	33,278	(12,662)	64,504

Allowance for Credit Losses on Loans Receivable

An analysis of the allowance for credit losses for loans receivable is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of period	$	283,760	243,288	282,986	228,120
Adjustment for adoption of ASC 326	—		—	—	(3,551)
Gross charge offs	(697)		(5,058)	(1,378)	(15,988)
Recoveries	1,503		985	3,919	3,882
Net charge-offs	806		(4,073)	2,541	(12,106)
Allowance at acquisition on loans purchased with credit deterioration	—		4,180	—	4,180
Provision for credit loss expense	(14,452)		29,924	(15,413)	56,676
Balance at end of the period	$	270,114	273,319	270,114	273,319

    Accrued interest receivable on loans, reported as a component of accrued interest receivable on the balance sheet, totaled $70.5 million at June 30, 2021 and is excluded from credit losses. For the six months ended June 30, 2021 loans in payment deferral with accrued interest and deferred escrow are included in credit losses.

    The allowance for credit losses represents the estimated amount considered necessary to cover lifetime expected credit losses inherent in financial assets at the balance sheet date. The lifetime estimate considers multiple economic scenarios, including recessionary scenarios that assume deterioration in key economic variables such as gross domestic product, unemployment rate and real estate prices.  The Company assesses the selection and probability weightings of each economic scenario.  In estimating the allowance for credit losses, multiple economic outlooks are used that include a base or consensus case, a downside recessionary case and an upside scenario to reflect the potential for continued improvement in the economic outlook.  In addition, the allowance for credit losses includes qualitative reserves for certain segments that may not be fully recognized through its quantitative models.  There are still many unknowns including the duration of the impact of COVID-19 on the economy and the results of the government fiscal and monetary actions along with payment deferral programs. The Company will continue to evaluate the allowance for credit losses and the related economic outlook each quarter.

25

The following tables present the balance in the allowance for credit losses for loans by portfolio segment as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Multi- Family Loans		Commercial Real Estate Loans	Commercial and Industrial Loans	Construction Loans	Residential Mortgage Loans	Consumer and Other Loans	Unallocated	Total
	(Dollars in thousands)
Allowance for credit losses:
Balance as of December 31, 2020	$	56,731	115,918	79,327	7,267	19,941	3,802	—	282,986
Charge-offs	(479)		(118)	(615)	—	(158)	(8)	—	(1,378)
Recoveries	1,863		74	972	—	934	76	—	3,919
Provision for credit loss expense	3,596		(22,421)	3,157	5,553	(4,528)	(770)	—	(15,413)
Ending balance-June 30, 2021	$	61,711	93,453	82,841	12,820	16,189	3,100	—	270,114

	December 31, 2020
	Multi- Family Loans		Commercial Real Estate Loans	Commercial and Industrial Loans	Construction Loans	Residential Mortgage Loans	Consumer and Other Loans	Unallocated	Total
	(Dollars in thousands)
Allowance for credit losses:
Balance as of December 31, 2019	$	74,099	50,925	74,396	6,816	17,391	2,548	1,945	228,120
Adjustment for adoption of ASC 326	(9,741)		(4,631)	(7,511)	(1,901)	20,089	2,089	(1,945)	(3,551)
Balance as of January 1, 2020	64,358		46,294	66,885	4,915	37,480	4,637	—	224,569
Charge-offs	(4,631)		(521)	(12,005)	—	(1,190)	(41)	—	(18,388)
Recoveries	1,965		412	4,459	—	677	222	—	7,735
Allowance at acquisition on loans purchased with credit deterioration	209		3,208	287	127	344	5	—	4,180
Provision for credit loss expense	(5,170)		66,525	19,701	2,225	(17,370)	(1,021)	—	64,890
Ending balance-December 31, 2020	$	56,731	115,918	79,327	7,267	19,941	3,802	—	282,986

26

Allowance for Credit Losses on Debt Securities

An analysis of the allowance for credit losses for debt securities held-to-maturity is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of the period	$	2,338	2,995	3,264	—
Impact of adopting ASC 326	—		—	—	2,564
Provision for credit losses	(259)		249	(1,185)	680
Balance at end of the period	$	2,079	3,244	2,079	3,244

The following tables present the balance in the allowance for credit losses for debt securities held-to-maturity by portfolio segment as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Municipal Bonds		Corporate and Other Debt Securities	Total
	(Dollars in thousands)
Allowance for credit losses:
Beginning balance-December 31, 2020	$	34	3,230	3,264
Provision for credit loss	(10)		(1,175)	(1,185)
Ending balance-June 30, 2021	$	24	2,055	2,079

	December 31, 2020
	Municipal Bonds		Corporate and Other Debt Securities	Total
	(Dollars in thousands)
Allowance for credit losses:
Beginning balance - December 31, 2019	$	—	—	—
Impact of adopting ASC 326	17		2,547	2,564
Provision for credit loss	17		683	700
Ending balance - December 31, 2020	$	34	3,230	3,264

Accrued interest receivable on debt securities held-to-maturity totaled $4.5 million at June 30, 2021 and is excluded from the estimate of credit losses.

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures

An analysis of the allowance for credit losses for off-balance sheet credit exposures is as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of the period	$	16,582	17,142	17,667	425
Impact of adopting ASC 326	—		—	—	12,674
Provision for credit losses	5,021		3,105	3,936	7,148
Balance at end of the period	$	21,603	20,247	21,603	20,247

27

8.     Deposits

Deposits are summarized as follows:

	June 30, 2021		December 31, 2020
	(In thousands)
Non-interest bearing:
Checking accounts	$	4,169,816	3,663,073
Interest bearing:
Checking accounts	6,354,368		6,043,393
Money market deposits	4,551,806		5,037,327
Savings	2,076,711		2,063,447
Certificates of deposit	2,286,265		2,718,179
Total deposits	$	19,438,966	19,525,419

9.    Goodwill and Other Intangible Assets

The following table summarizes goodwill and intangible assets at June 30, 2021 and December 31, 2020:

	June 30, 2021		December 31, 2020
	(In thousands)
Mortgage servicing rights	$	11,122	10,957
Core deposit premiums	3,022		3,560
Other	543		581
Total other intangible assets	14,687		15,098
Goodwill	94,535		94,535
Goodwill and intangible assets	$	109,222	109,633

The following table summarizes other intangible assets as of June 30, 2021 and December 31, 2020:

	Gross Intangible Asset		Accumulated Amortization	Valuation Allowance	Net Intangible Assets
	(In thousands)
June 30, 2021
Mortgage servicing rights	$	16,776	(5,581)	(73)	11,122
Core deposit premiums	23,063		(20,041)	—	3,022
Other	850		(307)	—	543
Total other intangible assets	$	40,689	(25,929)	(73)	14,687
December 31, 2020
Mortgage servicing rights	$	17,559	(5,592)	(1,010)	10,957
Core deposit premiums	23,063		(19,503)	—	3,560
Other	1,150		(569)	—	581
Total other intangible assets	$	41,772	(25,664)	(1,010)	15,098

Mortgage servicing rights are accounted for using the amortization method. Under this method, the Company amortizes the loan servicing asset in proportion to, and over the period of, estimated net servicing revenues. The Company sells loans on a servicing-retained basis. The unpaid principal balance of these loans were $1.54 billion and $1.69 billion at June 30, 2021 and December 31, 2020, respectively, all of which relate to mortgage loans. At June 30, 2021 and December 31, 2020, the servicing asset, included in other intangible assets, had an estimated fair value of $11.9 million and $11.2 million, respectively. At June 30, 2021, fair value was based on expected future cash flows considering a weighted average discount rate of 11.32%, a weighted average constant prepayment rate on mortgages of 14.76% and a weighted average life of 5.1 years.

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Based on an analysis of fair values as of June 30, 2021, the Company determined that a $73,000 valuation allowance for mortgage servicing rights was required, an increase of approximately $13,000 from the previous quarter. See Note 16, Fair Value Measurements, for additional details.

    Core deposit premiums are amortized using an accelerated method and having a weighted average amortization period of 10 years. For the year ended December 31, 2020, the Company recorded $2.5 million in core deposit premiums resulting from the acquisition of Gold Coast.

10.     Leases

    The Company has operating leases for corporate offices, branch locations and certain equipment. For these operating leases, the Company recognizes a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date. The Company’s leases have remaining lease terms of up to 15 years, some of which include options to extend the leases for up to 10 years. Certain of our operating leases for branch locations contain variable lease payments related to consumer price index adjustments.

The following table presents the balance sheet information related to our operating leases:

	June 30, 2021			December 31, 2020
	(Dollars in thousands)
Operating lease right-of-use assets	$	200,425		199,981
Operating lease liabilities	213,050			212,559
Weighted average remaining lease term	8.9 years			9.4 years
Weighted average discount rate	2.44		%	2.49	%

    In determining the present value of lease payments, the discount rate used for each individual lease is the rate implicit in the lease, unless that rate cannot be readily determined, in which case the Company is required to use its incremental borrowing rate based on the information available at commencement date. For its incremental borrowing rate, the Company uses the borrowing rates offered to the Company by the Federal Home Loan Bank, which reflects the rates a lender would charge the Company to obtain a collateralized loan.

The following table presents the components of total operating lease cost recognized in the Consolidated Statements of Income:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Included in office occupancy and equipment expense:
Operating lease cost	$	7,280	6,526	14,429	12,807
Short-term lease cost	214		103	430	189
Included in other income:
Sublease income	35		51	86	118

The following table presents supplemental cash flow information related to operating leases:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$	7,271	5,872	14,533	11,579
Operating lease liabilities arising from obtaining right-of-use assets (non-cash):
Operating leases	11,066		7,278	13,234	7,837

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    Future minimum operating lease payments and reconciliation to operating lease liabilities at June 30, 2021 and December 31, 2020:

	June 30, 2021		December 31, 2020
	(In thousands)
2021	$	14,535	28,844
2022	28,986		27,448
2023	27,937		26,354
2024	27,912		26,300
2025	27,267		25,496
Thereafter	111,198		104,729
Total lease payments	237,835		239,171
Less: Imputed interest	(24,785)		(26,612)
Total operating lease liabilities	$	213,050	$	212,559

    The Company also has finance leases for certain equipment. The Company’s right-of-use assets and lease liabilities for finance leases were both $1.6 million at June 30, 2021. The finance lease right-of-use assets and finance lease liabilities are included within Other assets and Other liabilities, respectively, on the Consolidated Balance Sheet.

11.     Equity Incentive Plan

    At the annual meeting held on June 9, 2015, stockholders of the Company approved the Investors Bancorp, Inc. 2015 Equity Incentive Plan (“2015 Plan”) which provides for the issuance or delivery of up to 30,881,296 shares (13,234,841 restricted stock awards and 17,646,455 stock options) of Investors Bancorp, Inc. common stock.

    Restricted shares granted under the 2015 Plan vest in equal installments, over the service period generally ranging from 5 to 7 years beginning one year from the date of grant. Additionally, certain restricted shares awarded are performance vesting awards, which may or may not vest depending upon the attainment of certain corporate financial targets. The vesting of restricted stock may accelerate in accordance with the terms of the 2015 Plan. The product of the number of shares granted and the grant date closing market price of the Company’s common stock determine the fair value of restricted shares under the 2015 Plan. Management recognizes compensation expense for the fair value of restricted shares on a straight-line basis over the requisite service period. For the six months ended June 30, 2021 and June 30, 2020, the Company granted 239,166 and 68,923 shares of restricted stock awards under the 2015 Plan, respectively.

    Stock options granted under the 2015 Plan vest in equal installments, over the service period generally ranging from 5 to 7 years beginning one year from the date of grant. The vesting of stock options may accelerate in accordance with the terms of the 2015 Plan. Stock options were granted at an exercise price equal to the fair value of the Company’s common stock on the grant date based on the closing market price and have an expiration period of 10 years. For the six months ended June 30, 2021 and June 30, 2020, the Company granted no stock options under the 2015 Plan.

    The fair value of stock options granted as part of the 2015 Plan are estimated utilizing the Black-Scholes option pricing model. The weighted average expected life of the stock option represents the period of time that stock options are expected to be outstanding and is estimated using historical data of stock option exercises and forfeitures. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant. The expected volatility is based on the historical volatility of the Company’s stock. The Company recognizes compensation expense for the fair values of these awards, which have graded vesting, on a straight-line basis over the requisite service period of the awards. Upon exercise of vested options, management expects to draw on treasury stock as the source for shares.

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    The following table presents the share-based compensation expense for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Stock option expense	$	947	1,011	1,857	1,999
Restricted stock expense	2,760		2,943	5,310	5,844
Total share-based compensation expense	$	3,707	3,954	7,167	7,843

The following is a summary of the Company’s stock option activity and related information for the six months ended June 30, 2021:

	Number of Stock Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2020	5,570,858	$	12.46	4.5	$	191
Granted	—	—		—
Exercised	(417,605)	12.12		3.9
Forfeited	(31,429)	12.54
Expired	(14,286)	12.54
Outstanding at June 30, 2021	5,107,538	12.49		4.1	9,059
Exercisable at June 30, 2021	4,196,262	$	12.48	4.0	$	7,478

    Expected future expense relating to the non-vested options outstanding as of June 30, 2021 is $3.7 million over a weighted average period of 0.85 years.

    The following is a summary of the status of the Company’s restricted shares as of June 30, 2021 and changes therein during the six months ended:

	Number of Shares Awarded	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020	1,974,235	$	12.44
Granted	239,166	13.17
Vested	(775,097)	12.39
Forfeited	(20,567)	11.70
Outstanding and non-vested at June 30, 2021	1,417,737	$	12.47

    Expected future expense relating to the non-vested restricted shares outstanding as of June 30, 2021 is $15.2 million over a weighted average period of 2.11 years.

12.     Net Periodic Benefit Plan Expense

    The Company has an Executive Supplemental Retirement Wage Replacement Plan (“SERP II”) and the Supplemental ESOP and Retirement Plan (“SERP I”) (collectively, the “SERPs”). The SERP II is a nonqualified, defined benefit plan which provides benefits to certain executives as designated by the Compensation and Benefits Committee of the Board of Directors. More specifically, the SERP II was designed to provide participants with a normal retirement benefit equal to an annual benefit of 60% of the participant’s highest annual base salary and cash incentive (over a consecutive 36-month period within the participant’s credited service period) reduced by the sum of the benefits provided under the Pentegra Defined Benefit Plan for Financial Institutions (“Pentegra DB Plan”) and the SERP I. Effective as of the close of business of December 31, 2016, the SERP II was amended to freeze future benefit accruals subsequent to the 2016 year of service.

    The SERP I compensates certain executives (as designated by the Compensation and Benefits Committee of the Board of Directors) participating in the ESOP whose contributions are limited by the Internal Revenue Code. The Company also maintains the Amended and Restated Director Retirement Plan (“Directors’ Plan”) for certain directors, which is a nonqualified, defined benefit plan. The Directors’ Plan was frozen on November 21, 2006 such that no new benefits accrued under, and no

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new directors were eligible to participate in the plan. The SERPs and the Directors’ Plan are unfunded and the costs of the plans are recognized over the period that services are provided.

The components of net periodic benefit cost for the Directors’ Plan and the SERP II are as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Interest cost	$	250	324	500	648
Amortization of:
Net loss	142		299	284	598
Total net periodic benefit cost	$	392	623	784	1,246

    Due to the unfunded nature of the SERPs and the Directors’ Plan, no contributions have been made or were expected to be made during the six months ended June 30, 2021.

    The Company also maintains the Pentegra DB Plan. As of December 31, 2016, the annual benefit provided under the Pentegra DB plan was frozen by an amendment to the plan. Freezing the plan eliminated all future benefit accruals and each participant’s frozen accrued benefit was determined as of December 31, 2016 and no further benefits accrued subsequent to December 31, 2016. Since it is a multi-employer plan, costs of the pension plan are based on contributions required to be made to the pension plan. There was no contribution required during the six months ended June 30, 2021. We anticipate contributing funds to the plan to meet any minimum funding requirements for the remainder of 2021.

13.    Derivatives and Hedging Activities

    The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s floating rate wholesale fundings and pools of fixed-rate assets.

Cash Flow Hedges of Interest Rate Risk

    The Company’s objectives in using interest rate derivatives are primarily to reduce cost and add stability to interest expense in an effort to manage its exposure to interest rate movements. Interest rate swaps designated as cash flow hedges involve the receipt of amounts subject to variability caused by changes in interest rates from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.  Changes in the fair value of derivatives designated and that qualify as cash flow hedges are initially recorded in other comprehensive income and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Such derivatives were used to hedge the variability in cash flows associated with wholesale funding. The Company is hedging its exposure to the variability in future cash flows for forecasted transactions over a maximum period of nineteen months (excluding forecasted transactions related to the payment of variable interest on existing financial instruments).

During the year ended December 31, 2020, the Company terminated four interest rate swaps with an aggregate notional of $400.0 million. Upon termination, the Company accelerated the reclassification of amounts in other comprehensive income to earnings as a result of the hedged forecasted transactions becoming probable not to occur.

    Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate borrowings. During the next twelve months, the Company estimates that an additional $41.7 million will be reclassified as an increase to interest expense.

Fair Value Hedges of Interest Rate Risk

    The Company is exposed to changes in the fair value of certain of its pools of fixed-rate assets due to changes in benchmark interest rates. The Company may use interest rate swaps to manage its exposure to changes in fair value on these instruments attributable to changes in the designated benchmark interest rate. Interest rate swaps designated as fair value hedges involve the payment of fixed-rate amounts to a counterparty in exchange for the Company receiving variable-rate payments

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over the life of the agreements without the exchange of the underlying notional amount. Such derivatives were used to hedge the changes in fair value of certain of its pools of prepayable fixed-rate assets.

    For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income.

    The Company terminated two interest rate swaps with an aggregate notional of $475.0 million during the year ended December 31, 2020. The terminated swaps were due to mature in April and May 2021. The remaining balance of the fair value hedging adjustment included in the carrying amount of the assets previously hedged is being amortized into interest income on a straight-line basis over the remaining lives of the assets previously hedged.

Derivatives Not Designated as Hedges

    The Company has credit derivatives resulting from participation in interest rate swaps provided to external lenders as part of loan participation arrangements which are, therefore, not used to manage interest rate risk in the Company’s assets or liabilities. Additionally, the Company provides interest rate risk management services to commercial customers, primarily interest rate swaps. The Company’s market risk from unfavorable movements in interest rates related to these derivative contracts is economically hedged by concurrently entering into offsetting derivative contracts that have identical notional values, terms and indices.

    Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain lenders which participate in loans and commercial customers.

Fair Values of Derivative Instruments on the Balance Sheet

Amounts included in the Consolidated Balance Sheet related to the fair value of the Company’s derivative instruments are shown below. Asset derivatives depicted below represent derivatives with a positive fair value position, while liability derivatives represent derivatives with a negative fair value position.

	June 30, 2021
	Asset Derivatives				Liability Derivatives
	Notional Amount		Fair Value		Notional Amount		Fair Value
	(in millions)		(In thousands)		(in millions)		(In thousands)
Derivatives designated as hedging instruments:
Interest Rate Swaps	$	1,150	$	24,946	$	2,425	$	84,212
Total derivatives designated as hedging instruments			$	24,946			$	84,212
Derivatives not designated as hedging instruments:
Interest Rate Swaps	$	689	$	24,037	$	689	$	24,037
Other Contracts	—		—		34		146
Total derivatives not designated as hedging instruments			$	24,037			$	24,183
Netting Adjustments (1)			29,802				102,063
Net Derivatives on the Balance Sheet			$	19,181			$	6,332
Cash Collateral (2)			—				—
Net Derivative Amounts			$	19,181			$	6,332

(1) Netting adjustments represents the amounts recorded to convert derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The Chicago Mercantile Exchange (“CME”) legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.

(2) Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The application of collateral cannot reduce the net derivative position below zero. Therefore, excess collateral, if any, is not reflected above.

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	December 31, 2020
	Asset Derivatives				Liability Derivatives
	Notional Amount		Fair Value		Notional Amount		Fair Value
	(in millions)		(In thousands)		(in millions)		(In thousands)
Derivatives designated as hedging instruments:
Interest Rate Swaps	$	400	$	1,419	$	2,925	$	115,166
Total derivatives designated as hedging instruments			$	1,419			$	115,166
Derivatives not designated as hedging instruments:
Interest Rate Swaps	$	641	$	34,155	$	641	$	34,155
Other Contracts	—		—		34		217
Total derivatives not designated as hedging instruments			$	34,155			$	34,372
Netting Adjustments (1)			997				149,046
Net Derivatives on the Balance Sheet			$	34,577			$	492
Cash Collateral (2)			—				237
Net Derivative Amounts			$	34,577			$	255

(1) Netting adjustments represents the amounts recorded to convert derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The Chicago Mercantile Exchange (“CME”) legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.

(2) Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The application of collateral cannot reduce the net derivative position below zero. Therefore, excess collateral, if any, is not reflected above.

Effect of Derivative Instruments on Accumulated Other Comprehensive Income (Loss)

The following table presents the effect of the Company’s derivative financial instruments on the Accumulated Comprehensive Income (Loss) for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Cash Flow Hedges - Interest rate swaps
Amount of (loss) gain recognized in other comprehensive income (loss)	$	(13,940)	(17,040)	34,181	(117,401)
Amount of loss reclassified from accumulated other comprehensive income (loss) to interest expense	(10,468)		(6,628)	(20,487)	(8,717)

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Location and Amount of Gain or (Loss) Recognized in Income on Fair Value and Cash Flow Hedging Relationships

The following table presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income as of June 30, 2021 and 2020.

		For the Three Months Ended June 30,			For the Six Months Ended June 30,
		2021		2020	2021	2020
The effects of fair value and cash flow hedging:	Income statement location	(In thousands)
Fair Value Hedges - Gain or (loss) on relationships in Subtopic 815-20
Interest contracts
Hedged items	Interest income	$	189	(2,239)	(50)	4,530
Derivatives designated as hedging instruments	Interest income	(210)		(136)	57	(7,324)
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Interest contracts
Amount of loss reclassified from accumulated other comprehensive income (loss)	Interest expense	(10,468)		(6,628)	(20,487)	(8,717)
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) as a result that a forecasted transaction is no longer probable of occurring	Other expense	—		—	—	—
Total amounts of income and expense line items presented in the income statement in which the effects of fair value are recorded		$	(10,489)	(9,003)	(20,480)	(11,511)

There was no fee income related to derivative interest rate swaps executed with commercial loan customers for the three months ended June 30, 2021 and June 30, 2020. Fee income related to derivative interest rate swaps executed with commercial loan customers totaled $1.8 million and $1.0 million for the six months ended June 30, 2021 and June 30, 2020, respectively.

As of June 30, 2021 and December 31, 2020, the following amounts were recorded on the Consolidated Balance Sheets related to cumulative basis adjustment for fair value hedges:

	Carrying Amount of the Hedged Assets/(Liabilities)			Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)
Balance sheet location	June 30, 2021		December 31, 2020	June 30, 2021		December 31, 2020
	(In thousands)
Loans receivable, net (1)(2)	$	149,951	—	$	5,810	8,798

(1) At June 30, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $396.6 million; the cumulative basis adjustments associated with these hedging relationships was $5.8 million; and the amounts of the designated hedged items were $150.0 million.

(2) The balance of Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities) as of June 30, 2021 includes $5.9 million of hedging adjustment on discontinued hedging relationships.

Location and Amount of Gain or (Loss) Recognized in Income on Derivatives Not Designated as Hedging Instruments

The table below presents the effect of the Company’s derivative financial instruments that are not designated as hedging instruments on the Consolidated Statements of Income as of June 30, 2021:

	Consolidated Statements of Income location	Amount of Gain (Loss) Recognized in Income on Derivative
		For the Three Months Ended June 30,			For the Six Months Ended June 30,
		2021		2020	2021	2020
		(In thousands)
Other Contracts	Other income / (expense)	$	(38)	4	71	(125)
Total		$	(38)	4	71	(125)

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14.    Comprehensive Income

 The components of comprehensive income, gross and net of tax, are as follows:

	Three Months Ended June 30,
	2021				2020
	Gross		Tax	Net	Gross	Tax	Net
	(Dollars in thousands)
Net income	$	109,036	(29,229)	79,807	58,829	(16,218)	42,611
Other comprehensive loss:
Change in funded status of retirement obligations	170		(48)	122	416	(117)	299
Unrealized losses on debt securities available-for-sale	(4,869)		1,161	(3,708)	(1,216)	219	(997)
Accretion of loss on debt securities reclassified to held-to-maturity from available-for-sale	39		(9)	30	73	(17)	56
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	268		(75)	193	385	(108)	277
Net losses on derivatives	(3,472)		976	(2,496)	(10,412)	2,927	(7,485)
Total other comprehensive loss	(7,864)		2,005	(5,859)	(10,754)	2,904	(7,850)
Total comprehensive income	$	101,172	(27,224)	73,948	48,075	(13,314)	34,761

	Six Months Ended June 30,
	2021				2020
	Gross		Tax	Net	Gross	Tax	Net
	(Dollars in thousands)
Net income	$	208,385	(56,303)	152,082	112,988	(30,865)	82,123
Other comprehensive income (loss):
Change in funded status of retirement obligations	338		(95)	243	444	(125)	319
Unrealized (losses) gains on debt securities available-for-sale	(28,919)		6,891	(22,028)	48,193	(11,562)	36,631
Accretion of loss on securities reclassified to held-to-maturity from available-for-sale	80		(19)	61	147	(35)	112
Reclassification adjustment for security gains included in net income	(398)		99	(299)	—	—	—
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	517		(145)	372	635	(178)	457
Net gains (losses) on derivatives	54,668		(15,367)	39,301	(108,684)	30,551	(78,133)
Total other comprehensive income (loss)	26,286		(8,636)	17,650	(59,265)	18,651	(40,614)
Total comprehensive income	$	234,671	(64,939)	169,732	53,723	(12,214)	41,509

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The following table presents the after-tax changes in the balances of each component of accumulated other comprehensive loss for the six months ended June 30, 2021 and 2020:

	Change in funded status of retirement obligations		Accretion of loss on debt securities reclassified to held-to-maturity	Unrealized gains on debt securities available-for-sale and gains included in net income	Other-than- temporary impairment accretion on debt securities	Unrealized losses on derivatives	Total accumulated other comprehensive loss
	(Dollars in thousands)
Balance - December 31, 2020	$	(9,485)	(184)	57,204	(9,809)	(77,742)	(40,016)
Net change	243		61	(22,327)	372	39,301	17,650
Balance - June 30, 2021	$	(9,242)	(123)	34,877	(9,437)	(38,441)	(22,366)
Balance - December 31, 2019	$	(6,690)	(386)	29,456	(10,629)	(30,373)	(18,622)
Net change	319		112	36,631	457	(78,133)	(40,614)
Balance - June 30, 2020	$	(6,371)	(274)	66,087	(10,172)	(108,506)	(59,236)

The following table presents information about amounts reclassified from accumulated other comprehensive loss to the consolidated statements of income and the affected line item in the statement where net income is presented.

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Reclassification adjustment for gains included in net income
Gain on securities, net	$	—	—	(398)	—
Change in funded status of retirement obligations
Amortization of net loss	170		299	338	599
Compensation and fringe benefits	170		299	338	599
Reclassification adjustment for unrealized losses on derivatives
Interest expense	10,468		6,092	20,487	8,181
Total before tax	10,638		6,391	20,427	8,780
Income tax expense	(2,852)		(1,762)	(5,527)	(2,398)
Net of tax	$	7,786	4,629	14,900	6,382

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15.    Stockholders’ Equity

 The changes in the components of stockholders’ equity for the three months ended June 30, 2021 and 2020 are as follows:

	Common stock		Additional paid-in capital	Retained earnings	Treasury stock	Unallocated common stock held by ESOP	Accumulated other comprehensive loss	Total stockholders’ equity
	(In thousands)
Balance at March 31, 2020	$	3,591	2,826,288	1,247,028	(1,353,246)	(77,517)	(51,386)	2,594,758
Net income	—		—	42,611	—	—	—	42,611
Other comprehensive loss, net of tax	—		—	—	—	—	(7,850)	(7,850)
Common stock issued to finance acquisition	28		20,853	—	—	—	—	20,881
Purchase of treasury stock (298,977 shares)	—		—	—	(2,429)	—	—	(2,429)
Treasury stock allocated to restricted stock plan (4,000 shares)	—		(36)	(13)	49	—	—	—
Compensation cost for stock options and restricted stock	—		3,954	—	—	—	—	3,954
Cash dividend paid ($0.12 per common share)	—		—	(30,021)	—	—	—	(30,021)
ESOP shares allocated or committed to be released	—		247	—	—	749	—	996
Balance at June 30, 2020	$	3,619	2,851,306	1,259,605	(1,355,626)	(76,768)	(59,236)	2,622,900
Balance at March 31, 2021	$	3,619	2,860,045	1,376,774	(1,378,858)	(74,521)	(16,507)	2,770,552
Net income	—		—	79,807	—	—	—	79,807
Other comprehensive loss, net of tax	—		—	—	—	—	(5,859)	(5,859)
Purchase of treasury stock (299,838 shares)	—		—	—	(4,343)	—	—	(4,343)
Treasury stock allocated to restricted stock plan (22,823 shares)	—		(335)	49	286	—	—	—
Compensation cost for stock options and restricted stock	—		3,707	—	—	—	—	3,707
Exercise of stock options	—		8	—	3,019	—	—	3,027
Restricted stock forfeitures (12,000 shares)	—		134	12	(146)	—	—	—
Cash dividend paid ($0.14 per common share)	—		—	(34,613)	—	—	—	(34,613)
ESOP shares allocated or committed to be released	—		1,000	—	—	749	—	1,749
Balance at June 30, 2021	$	3,619	2,864,559	1,422,029	(1,380,042)	(73,772)	(22,366)	2,814,027

16.    Fair Value Measurements

    We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Our debt securities available-for-sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record at fair value other assets or liabilities on a non-recurring basis, such as held-to-maturity debt securities, mortgage servicing rights (“MSR”), loans receivable and other real estate owned. These non-recurring fair value adjustments involve the application of lower-of-cost-or-market accounting or write-downs of individual assets. Additionally, in connection with our mortgage banking activities we may have commitments to fund loans held-for-sale and commitments to sell loans, which are considered free-standing derivative instruments, the fair values of which are not material to our financial condition or results of operations.

    In accordance with FASB ASC 820, “Fair Value Measurements and Disclosures”, we group our assets and liabilities at fair value in three levels, based on the markets in which the assets are traded and the reliability of the assumptions used to determine fair value. These levels are:

•Level 1 – Valuation is based upon quoted prices for identical instruments traded in active markets.

•Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.

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•Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include the use of option pricing models, discounted cash flow models and similar techniques. The results cannot be determined with precision and may not be realized in an actual sale or immediate settlement of the asset or liability.

    We base our fair values on 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. ASC 820 requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

Assets Measured at Fair Value on a Recurring Basis

Equity securities

    Our equity securities portfolio is carried at estimated fair value on a recurring basis, with any unrealized gains and losses recognized in the Consolidated Statements of Income. The fair values of equity securities are based on quoted market prices (Level 1).

Debt securities available-for-sale

    Our debt securities available-for-sale portfolio is carried at estimated fair value on a recurring basis, with any unrealized gains and losses, net of taxes, reported as accumulated other comprehensive income (loss) in stockholders’ equity. The fair values of debt securities available-for-sale are provided by a third-party pricing service. The pricing service may use quoted market prices of comparable instruments or a variety of other forms of analysis, incorporating inputs that are currently observable in the markets for similar securities (Level 2). Inputs that are often used in the valuation methodologies include, but are not limited to, benchmark yields, credit spreads, default rates, prepayment speeds and non-binding broker quotes. As the Company is responsible for the determination of fair value, a quarterly analysis of the prices received from the pricing service is performed to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. Additionally, the Company compares changes in the reported market values to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and the review of the fair value methodology documentation provided by the independent pricing services has not resulted in material adjustments in the prices obtained from the pricing services.

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Derivatives

    Derivatives are reported at fair value utilizing Level 2 inputs. The fair values of interest rate swap and risk participation agreements are based on a valuation model that uses primarily observable inputs, such as benchmark yield curves and interest rate spreads.

The following tables present our assets and liabilities measured at fair value on a recurring basis by level within the valuation hierarchy at June 30, 2021 and December 31, 2020.

	At June 30, 2021
	Total		Level 1	Level 2	Level 3
	(In thousands)
Assets:
Equity securities	$	9,698	9,698	—	—
Debt securities available for sale:
Government-sponsored enterprises	$	4,064	—	4,064	—
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,189,868		—	1,189,868	—
Federal National Mortgage Association	1,188,302		—	1,188,302	—
Government National Mortgage Association	162,181		—	162,181	—
Total debt securities available-for-sale	$	2,544,415	—	2,544,415	—
Interest rate swaps	$	19,181	—	19,181	—
Liabilities:
Derivatives:
Interest rate swaps	$	6,186	—	6,186	—
Other contracts	146		—	146	—
Total derivatives	$	6,332	—	6,332	—

	At December 31, 2020
	Total		Level 1	Level 2	Level 3
	(In thousands)
Assets:
Equity securities	$	36,000	36,000	—	—
Debt securities available for sale:
Debt securities:
Government-sponsored enterprises	4,482		—	4,482	—
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	1,317,052	—	1,317,052	—
Federal National Mortgage Association	1,205,426		—	1,205,426	—
Government National Mortgage Association	231,477		—	231,477	—
Total debt securities available-for-sale	$	2,758,437	—	2,758,437	—
Interest rate swaps	$	34,577	—	34,577	—
Liabilities:
Derivatives:
Interest rate swaps	$	275	—	275	—
Other contracts	217		—	217	—
Total derivatives	$	492	—	492	—

    There have been no changes in the methodologies used at June 30, 2021 from December 31, 2020, and there were no transfers between Level 1 and Level 2 during the six months ended June 30, 2021.

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    There were no Level 3 assets measured at fair value on a recurring basis for the six months ended June 30, 2021 and December 31, 2020.

Assets Measured at Fair Value on a Non-Recurring Basis

Mortgage Servicing Rights, Net

    Mortgage servicing rights are carried at the lower of cost or estimated fair value. The estimated fair value of MSR is obtained through independent third-party valuations through an analysis of future cash flows, incorporating assumptions market participants would use in determining fair value including market discount rates, prepayment speeds, servicing income, servicing costs, default rates and other market driven data, including the market’s perception of future interest rate movements. The prepayment speed and the discount rate are considered two of the most significant inputs in the model.  At June 30, 2021, the fair value model used prepayment speeds ranging from 3.17% to 31.20% and a discount rate of 11.32% for the valuation of the mortgage servicing rights. At December 31, 2020, the fair value model used prepayment speeds ranging from 14.46% to 23.58% and a discount rate of 12.03% for the valuation of the mortgage servicing rights. A significant degree of judgment is involved in valuing the mortgage servicing rights using Level 3 inputs. The use of different assumptions could have a significant positive or negative effect on the fair value estimate.

Collateral Dependent Loans

    A collateral dependent loan is a loan for which repayment is expected to be provided substantially through the operation or sale of the collateral. A loan is individually evaluated when it is a collateral dependent commercial loan with an outstanding balance greater than $1.0 million and on non-accrual status, a loan modified in a troubled debt restructuring, or is a commercial loan with $1.0 million in outstanding principal if management has specific information that it is probable they will not collect all amounts due under the contractual terms of the loan agreement. Collateral-dependent loans secured by property are carried at the estimated fair value of the collateral less estimated selling costs. Estimated fair value is calculated using an independent third-party appraiser. In the event the most recent appraisal does not reflect the current market conditions due to the passage of time and other factors, management will obtain an updated appraisal or make downward adjustments to the existing appraised value based on their knowledge of the property, local real estate market conditions, recent real estate transactions, and for estimated selling costs, if applicable. Appraisals were generally discounted in a range of 0% to 25%. Collateral securing a loan may consist of real estate or other property such as equipment or inventory. Collateral securing commercial and industrial loans may include real estate, other property or the operating results of the business. For non-collateral dependent loans, management estimates the fair value using discounted cash flows based on inputs that are largely unobservable and instead reflect management’s own estimates of the assumptions as a market participant would in pricing such loans.

Other Real Estate Owned and Other Repossessed Assets

    Other Real Estate Owned and Other Repossessed Assets are recorded at estimated fair value, less estimated selling costs when acquired, thus establishing a new cost basis. Repossessed assets that are available for lease are included in operating lease equipment reviewed below. Fair value of foreclosed real estate property and other repossessed assets is generally based on independent appraisals. These appraisals include adjustments to comparable assets based on the appraisers’ market knowledge and experience, and are discounted an additional 0% to 25% for estimated costs to sell. When an asset is acquired, the excess of the loan balance over fair value, less estimated selling costs, is charged to the allowance for loan losses. If further declines in the estimated fair value of the asset occur, a writedown is recorded through expense. The valuation of foreclosed and repossessed assets is subjective in nature and may be adjusted in the future because of changes in economic conditions. Operating costs after acquisition are generally expensed.

Operating Lease Equipment

    On an annual basis, the Company reviews the lease residuals and off-lease equipment for potential impairment. Repossessed assets are also available for lease and are included in operating lease equipment reviewed. Operating lease equipment is recorded at estimated fair value, generally determined by independent appraisal. If declines in the estimated fair value of the asset occur, a writedown is recorded through expense.

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The following tables provide the level of valuation assumptions used to determine the carrying value of our assets measured at fair value on a non-recurring basis that have changed for the periods ended June 30, 2021 and December 31, 2020. For the three months ended June 30, 2021, there was no change to the carrying value of other real estate owned, collateral dependent loans or operating lease equipment. For the three months ended December 31, 2020, there was no change to the carrying value of other real estate owned or collateral dependent loans.

Security Type	Valuation Technique	Unobservable Input	Range		Weighted Average Input	Carrying Value at June 30, 2021
			Minimum	Maximum		Total		Level 1	Level 2	Level 3
						(In thousands)
MSR, net	Estimated cash flow	Prepayment speeds	3.2%	31.2%	14.76%	$	9,047	—	—	9,047
						$	9,047	—	—	9,047

Security Type	Valuation Technique	Unobservable Input	Range		Weighted Average Input	Carrying Value at December 31, 2020
			Minimum	Maximum		Total		Level 1	Level 2	Level 3
						(In thousands)
MSR, net	Estimated cash flow	Prepayment speeds	14.5%	23.6%	17.76%	$	10,663	—	—	10,663
Operating lease equipment	Market comparable	Lack of marketability	0.0%	10.4%	10.41%	15,007		—	—	15,007
						$	25,670	—	—	25,670

Other Fair Value Disclosures

    Fair value estimates, methods and assumptions for the Company’s financial instruments that are not recorded at fair value on a recurring or non-recurring basis are set forth below.

Cash and Cash Equivalents

    For cash, short-term U.S. Treasury securities and due from banks, the carrying amount approximates fair value.

Debt Securities Held-to-Maturity, net

    Our debt securities held-to-maturity portfolio, consisting primarily of agency mortgage-backed securities and other debt securities for which we have a positive intent and ability to hold to maturity, is carried at amortized cost less any allowance for credit losses. The fair values of for the majority of debt securities held-to-maturity are provided by a third-party pricing service. The pricing service may use quoted market prices of comparable instruments or a variety of other forms of analysis, incorporating inputs that are currently observable in the markets for similar securities (Level 2). Inputs that are often used in the valuation methodologies include, but are not limited to, benchmark yields, credit spreads, default rates, prepayment speeds and non-binding broker quotes. As the Company is responsible for the determination of fair value, a quarterly analysis of the prices received from the pricing service is performed to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. Additionally, the Company compares changes in the reported market values to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and the review of the fair value methodology documentation provided by the independent pricing services has not resulted in material adjustments in the prices obtained from the pricing services. For certain held-to-maturity debt securities that trade in illiquid markets, valuation techniques, which require inputs that are both significant to the fair value measurement and unobservable, are used to determine fair value of the investment. Valuation techniques are based on various assumptions, including, but not limited to forecasted cash flows, discount rates, required rate of return, adjustments for nonperformance and liquidity, and liquidation values (Level 3).

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FHLB Stock

    The fair value of the Federal Home Loan Bank of New York (“FHLB”) stock is its carrying value, since this is the amount for which it could be redeemed. There is no active market for FHLB stock. The Bank is required to hold and purchase FHLB stock based upon the balance of mortgage related assets held by the member and the amount of outstanding FHLB advances.

Loans

    Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as residential mortgage and consumer. Each loan category is further segmented into fixed and adjustable rate interest terms and by performing and non-performing categories.

    The fair value estimates are made at a specific point in time based on relevant market information. The fair value estimates do not reflect any premium or discount that could result from offering for sale a particular financial instrument. Fair value estimates are based on judgments regarding future expected loss experience, risk characteristics and economic conditions. These estimates are subjective, involve uncertainties, and cannot be determined with precision.

Loans Held for Sale

    Residential mortgage loans held for sale are recorded at the lower of cost or fair value and are therefore measured at fair value on a non-recurring basis. When available, the Company uses observable secondary market data, including pricing on recent closed market transactions for loans with similar characteristics.

Deposit Liabilities

    The fair value of deposits with no stated maturity, such as savings, checking and money market accounts, is equal to the amount payable on demand. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using rates for currently offered deposits of similar remaining maturities.

Borrowings

    The fair value of borrowings are based on securities dealers’ estimated fair values, when available, or estimated using discounted cash flow analysis. The discount rates used approximate the rates offered for similar borrowings of similar remaining terms.

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Commitments to Extend Credit

    The fair value of commitments to extend credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For commitments to originate fixed rate loans, fair value also considers the difference between current levels of interest rates and the committed rates. Due to the short-term nature of our outstanding commitments, the fair values of these commitments are immaterial to our financial condition.

The carrying values and estimated fair values of the Company’s financial instruments are presented in the following table.

	June 30, 2021
	Carrying		Estimated Fair Value
	value		Total	Level 1	Level 2	Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	770,396	770,396	770,396	—	—
Equities	9,698		9,698	9,698	—	—
Debt securities available-for-sale	2,544,415		2,544,415	—	2,544,415	—
Debt securities held-to-maturity, net	1,178,812		1,253,521	—	1,169,778	83,743
FHLB stock	199,826		199,826	199,826	—	—
Loans held for sale	—		—	—	—	—
Net loans	21,082,521		21,108,980	—	—	21,108,980
Derivative financial instruments	19,181		19,181	—	19,181	—
Financial liabilities:
Deposits, other than time deposits	$	17,152,701	17,152,701	17,152,701	—	—
Time deposits	2,286,265		2,287,966	—	2,287,966	—
Borrowed funds	4,033,864		4,084,597	—	4,084,597	—
Derivative financial instruments	6,332		6,332	—	6,332	—

	December 31, 2020
	Carrying		Estimated Fair Value
	value		Total	Level 1	Level 2	Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	170,432	170,432	170,432	—	—
Equities	36,000		36,000	36,000	—	—
Debt securities available-for-sale	2,758,437		2,758,437	—	2,758,437	—
Debt securities held-to-maturity, net	1,247,853		1,320,872	—	1,253,566	67,306
FHLB stock	159,829		159,829	159,829	—	—
Loans held for sale	30,357		30,357	—	30,357	—
Net loans	20,580,451		20,787,917	—	—	20,787,917
Derivative financial instruments	34,577		34,577	—	34,577	—
Financial liabilities:
Deposits, other than time deposits	$	16,807,240	16,807,240	16,807,240	—	—
Time deposits	2,718,179		2,726,230	—	2,726,230	—
Borrowed funds	3,295,790		3,367,491	—	3,367,491	—
Derivative financial instruments	492		492	—	492	—

Limitations

    Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience,

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current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

    Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets that are not considered financial assets include deferred tax assets, premises and equipment and bank owned life insurance. Liabilities for pension and other postretirement benefits are not considered financial liabilities. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

17.    Revenue Recognition

    The Company’s contracts with customers in the scope of Topic 606, Revenue from Contracts with Customers, are contracts for deposit accounts and contracts for non-deposit investment accounts through a third-party service provider.  Both types of contracts result in non-interest income being recognized.  The revenue resulting from deposit accounts, which includes fees such as insufficient funds fees, wire transfer fees and out-of-network ATM transaction fees, is included as a component of fees and service charges on the Consolidated Statements of Income.  The revenue resulting from non-deposit investment accounts is included as a component of other income on the Consolidated Statements of Income. 

Revenue from contracts with customers included in fees and service charges and other income was as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(Dollars in thousands)
Revenue from contracts with customers included in:
Fees and service charges	$	3,733	2,908	7,331	6,858
Other income	4,630		1,965	9,203	4,984
Total revenue from contracts with customers	$	8,363	4,873	16,534	11,842

    For our contracts with customers, we satisfy our performance obligations each day as services are rendered.  For our deposit account revenue, we receive payment on a daily basis as services are rendered and for our non-deposit investment account revenue, we receive payment on a monthly basis from our third-party service provider as services are rendered.

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18.    Recent Accounting Pronouncements

Standard	Description	Required date of adoption	Effect on Consolidated Financial Statements
Standards Adopted in 2021
Codification Improvements	The amendments include all disclosure guidance in the Disclosure Section to reduce the potential that disclosure requirements would be missed.	January 1, 2021	The amendments in ASU 2020-10 do not change current GAAP. The update did not impact the Company’s Consolidated Financial Statements.
Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs	The amendments in this update clarify guidance as to whether a callable debt security with multiple call dates is within the scope of paragraph 310-20-35-33.	January 1, 2021	The amendments in ASU 2020-08 will be applied under a prospective approach. The adoption of this ASU did not have a material impact on the Company’s Consolidated Financial Statements.
Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815): Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Emerging Issues Task Force)	This update clarifies the application of the alternative provided in ASU 2016-01 to measure certain equity securities without a readily determinable fair value. The amendments in this update clarify that a company should consider observable transactions that require it to either apply or discontinue the equity method of accounting under Topic 323 for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. The amendments further provide clarification related to the accounting for certain forward contracts and purchased options.	January 1, 2021	The amendments in ASU 2020-01 will be applied prospectively. The Company does not currently apply the measurement alternative in Topic 321 to any of its investments and the update did not have a material impact on the Company’s Consolidated Financial Statements.
Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes	The amendments simplify the accounting for income taxes by removing certain exceptions to general principles in Topic 740 and also clarify and amend existing guidance.	January 1, 2021	The Company adopted ASU 2019-12 with no material impact on its Consolidated Financial Statements.
Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans.	The amendments in this update modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans by removing disclosures that no longer are considered cost beneficial, clarifying the specific requirements of disclosures, and adding disclosure requirements identified as relevant.	January 1, 2021	ASU 2018-14 will be applied under a retrospective approach to disclosures with regard to the Company’s employee benefit plans. The adoption of this update did not have a material impact on the Company’s Consolidated Financial Statements.
Standards Not Yet Adopted
Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity	The amendments simplify the accounting for certain financial instruments with the characteristics of liabilities and equity by reducing the number of models for convertible debt instruments and convertible preferred stock and amends how convertible instruments and equity contracts with an option to be settled in cash or shares affect the EPS calculation.	January 1, 2022 Early adoption permitted not earlier than fiscal years beginning 2021	The amendments are to be applied under either a modified retrospective or a fully retrospective approach. The update is not expected to have a material impact on the Company’s Consolidated Financial Statements.

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Standard	Description	Required date of adoption	Effect on Consolidated Financial Statements
Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	The amendments provide expedients and exceptions for applying GAAP to contracts or hedging relationships affected by the discontinuance of LIBOR as a benchmark rate to alleviate the burden and cost of such modifications. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments also provide a one-time election to sell and/or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform.	Effective for a limited time as of March 12, 2020 through December 31, 2022	The Company continues to evaluate its financial instruments indexed to USD-LIBOR for which Topic 848 provides expedients, exceptions and elections. The Company has established a crossfunctional team to develop transition plans to address potential revisions to documentation, as well as customer management and communication, internal training, financial, operational and risk management implications, and legal and contract management. In addition, the Company has engaged with its regulators and with industry working groups and trade associations to develop strategies for transitioning away from LIBOR.
Reference Rate Reform (Topic 848)	The update specifically addresses whether Topic 848 applies to derivative instruments that do not reference a rate that is expected to be discontinued but that instead use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform, commonly referred to as the “discounting transition.” This ASU extends certain optional expedients provided in Topic 848 to contract modifications and derivatives affected by the discounting transition.	Effective for a limited time as of March 12, 2020 through December 31, 2022	The amendments in ASU 2021-01 may be applied under a retrospective approach as of any date from the beginning of an interim period that includes or is after March 12, 2020 or prospectively to new modifications made on or after any date within the interim period including January 7, 2021. The Update is not expected to have a material impact on the Company’s Consolidated Financial Statements.

19.    Subsequent Events

    As defined in FASB ASC 855, “Subsequent Events”, subsequent events are events or transactions that occur after the balance sheet date but before financial statements are issued or available to be issued. Financial statements are considered issued when they are widely distributed to stockholders and other financial statement users for general use and reliance in a form and format that complies with U.S. GAAP.

Dividend

    On July 28, 2021, the Company declared a cash dividend of $0.14 per share. The $0.14 dividend per share will be paid to stockholders on August 25, 2021, with a record date of August 10, 2021.

Citizens Financial Group, Inc. Merger Agreement

On July 28, 2021, Citizens Financial Group, Inc. (“Citizens”) and the Company announced that they have entered into a definitive agreement and plan of merger under which Citizens will acquire all of the outstanding shares of the Company for a combination of stock and cash. Under the terms of the agreement and plan of merger, shareholders of the Company will receive 0.297 of a share of Citizens common stock and $1.46 in cash for each share of the Company they own. Following completion of the transaction, former shareholders of the Company will collectively own approximately 14% of the combined company. The implied total transaction value based on closing prices on July 27, 2021 is approximately $3.5 billion.

The agreement and plan of merger has been unanimously approved by the boards of directors of each company and the transaction is expected to close in the first or second quarter of 2022, subject to approval by the shareholders of the Company, receipt of required regulatory approvals and other customary closing conditions.

FDIC Approval of Acquisition of Berkshire Bank Branches

During July 2021, the Bank received approval from the FDIC for the previously announced purchase of Berkshire Bank’s New Jersey and eastern Pennsylvania branches. The Bank expects to complete the transaction on August 27, 2021.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward Looking Statements

    Certain statements contained herein are not based on historical facts and are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements may be identified by reference to a future period or periods or by the use of forward-looking terminology, such as “may,” “will,” “believe,” “expect,” “estimate,” “anticipate,” “continue,” or similar terms or variations on those terms, or the negative of those terms. Forward-looking statements are subject to numerous risks and uncertainties, including, but not limited to, those related to the economic environment, particularly in the market areas in which Investors Bancorp, Inc. (the “Company”) operates, competitive products and pricing, fiscal and monetary policies of the U.S. Government, changes in government regulations or interpretations of regulations affecting financial institutions, changes in prevailing interest rates, acquisitions and the integration of acquired businesses, credit risk management, asset-liability management, the financial and securities markets, the availability of and costs associated with sources of liquidity, expenses related to our proposed merger with Citizens Financial Group, Inc., unexpected delays relating to the merger, or the inability to obtain shareholder or regulatory approvals or satisfy the other closing conditions required to complete the merger. In addition, the COVID-19 pandemic is having an adverse impact on us, our customers and the communities we serve. The adverse effect of the COVID-19 pandemic on us, our customers and the communities where we operate may adversely affect our business, results of operations and financial condition for an indefinite period of time. Reference is made to Item 1A “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 and the additional risk factors included in Part II, Item 1A of this Quarterly Report on Form 10-Q.

    The Company wishes to caution readers not to place undue reliance on any such forward-looking statements, which speak only as of the date made. The Company wishes to advise that the factors listed above could affect the Company’s financial performance and could cause the Company’s actual results for future periods to differ materially from any opinions or statements expressed with respect to future periods in any current statements. The Company does not undertake and specifically declines any obligation to publicly release the result of any revisions, which may be made to any forward-looking statements to reflect events or circumstances after the date of such statements or to reflect the occurrence of anticipated or unanticipated events except as may be required by law.

Critical Accounting Policies

We consider accounting policies that require management to exercise significant judgment or discretion or to make significant assumptions that have, or could have, a material impact on the carrying value of certain assets or on income to be critical accounting policies. As of June 30, 2021, we consider the following to be our critical accounting policies.

Allowance for Credit Losses. The allowance for credit losses represents the estimated amount considered necessary to cover lifetime expected credit losses inherent in financial assets at the balance sheet date. The measurement of expected credit losses is applicable to financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities. It also applies to off-balance sheet credit exposures such as loan commitments and unused lines of credit. The allowance is established through the provision for credit losses that is charged against income. The methodology for determining the allowance for credit losses is considered a critical accounting policy by management because of the high degree of judgment involved, the subjectivity of the assumptions used, and the potential for changes in the forecasted economic environment that could result in changes to the amount of the recorded allowance for credit losses. The allowance for loan and security losses is reported separately as contra-assets to loans and securities on the consolidated balance sheet. The expected credit loss for unfunded lending commitments and unfunded loan commitments is reported on the consolidated balance sheet in other liabilities. The provision for credit losses related to loans, unfunded commitments and debt securities is reported on the consolidated statement of income.

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Allowance for Credit Losses on Loans Receivable

Collectively evaluated. The allowance for credit losses on loans is deducted from the amortized cost basis of the loan to present the net amount expected to be collected. Expected losses are evaluated and calculated on a collective basis for those loans which share similar risk characteristics. At each reporting period, the Company evaluates whether the loans in a pool continue to exhibit similar risk characteristics as the other loans in the pool. If the risk characteristics of a loan change, such that they are no longer similar to other loans in the pool, the Company will evaluate the loan with a different pool of loans that share similar risk characteristics. If the loan does not share risk characteristics with other loans, the Company will evaluate the allowance on an individual basis. The Company evaluates the segmentation at least annually to determine whether loans continue to share similar risk characteristics. Loans are charged off against the allowance when the Company believes the loan balances become uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged off or expected to be charged off.

    The Company has chosen to segment its portfolio consistent with the manner in which it manages the risk of the type of credit. The Company’s segments for loans include multi-family, commercial real estate, commercial and industrial, construction, residential and consumer.

    The Company calculates estimated credit loss on its loan portfolio primarily using quantitative methodologies that consider a variety of factors such as historical loss experience, loan characteristics, the current credit quality of the portfolio as well as an economic outlook over the life of the loan. The expected credit losses are the product of multiplying the Company’s estimates of probability of default (PD), loss given default (LGD) and individual loan level exposure at default on an undiscounted basis. For a small portion of the loan portfolio, i.e. unsecured consumer loans, small business loans and loans to individuals, the Company utilizes a loss rate method to calculate the expected credit loss of that asset segment.

    Included in the Company’s framework for estimating credit losses, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over a two-year reasonable and supportable forecast period, after which, the Company reverts to average historical losses on a straight line basis over a two-year period. These macroeconomic scenarios include variables that have historically been key drivers of increases and decreases in credit losses and include, but are not limited to, unemployment rates, real estate prices, gross domestic product levels, corporate bond spreads and long-term interest rate forecasts. The Company evaluates the use of multiple economic scenarios and the weighting of those scenarios on a quarterly basis. The scenarios that are chosen and the amount of weighting given to each scenario consider a variety of factors including third party economists and firms, industry trends and other available published economic information.

    Expected credit losses are estimated over the contractual term of each loan taking into consideration expected prepayments which are developed using industry standard estimation techniques. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancelable by the Company.

    Also included in the allowance for loans are qualitative reserves to cover losses that are expected but, in the Company’s assessment, may not be adequately represented in the quantitative method or the economic assumptions described above. For example, factors that the Company considers include changes in lending policies and procedures, business conditions, the nature and size of the portfolio, portfolio concentrations, the volume and severity of past due loans and non-accrual loans, the effect of external factors such as competition, and the legal and regulatory requirements, among others.

Individually evaluated. On a case-by-case basis, the Company may conclude a loan should be evaluated on an individual basis based on its disparate risk characteristics. The Company individually evaluates loans that meet the following criteria for expected credit loss, as the Company has determined that these loans generally do not share similar risk characteristics with other loans in the portfolio:

•Commercial loans with an outstanding balance greater than $1.0 million and on non-accrual status;

•Troubled debt restructured loans; and

•Other commercial loans with greater than $1.0 million in outstanding principal, if management has specific information that it is probable they will not collect all principal amounts due under the contractual terms of the loan agreement.

    When the Company determines that the loan no longer shares similar risk characteristics of other loans in the portfolio, the allowance will be determined on an individual basis using the present value of expected cash flows or, for collateral-dependent loans, the fair value of the collateral as of the reporting date, less estimated selling costs, as applicable, to ensure that the credit loss is not delayed until actual loss. If the fair value of the collateral is less than the amortized cost basis of the loan,

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the Company will charge off the difference between the fair value of the collateral, less costs to sell at the reporting date and the amortized cost basis of the loan.

In determining the fair value for collateral-dependent loans, the Company reviews whether there has been an adverse change in the collateral value supporting the loan. As a substantial amount of the Company’s loan portfolio is collateralized by real estate, appraisals of the underlying value of property are used. The Company utilizes information from its commercial lending officers and its credit department and special assets department’s knowledge of changes in real estate conditions to identify if possible deterioration has occurred. Based on the severity of the changes in market conditions, management determines if an updated appraisal is warranted or if downward adjustments to the previous appraisal are warranted.

For residential mortgage loans, the Company’s policy is to obtain an appraisal upon the origination of the loan and an updated appraisal in the event a loan becomes 90 days delinquent. Thereafter, the appraisal is updated every two years if the loan remains in non-performing status and the foreclosure process has not been completed. Management adjusts the appraised value of residential loans to reflect estimated selling costs and declines in the real estate market.

Management believes the potential risk for outdated appraisals has been mitigated due to the fact that the loans are individually assessed to determine that the loan’s carrying value is not in excess of the fair value of the collateral. Loans are generally charged off after an analysis is completed which indicates that collectability of the full principal balance is in doubt.

Consistent with the CARES Act, modifications that met the criteria as discussed in Note 6, Loans Receivable, Net, are not included in individually evaluated loans discussed above.

Acquired assets. Subsequent to the adoption of CECL, acquired assets are included in the Company's calculation of the allowance for credit losses. How the allowance on an acquired asset is recorded depends on whether it has been classified as a Purchased Financial Asset with Credit Deterioration (“PCD”). PCD assets are assets acquired at a discount that is due, in part, to credit quality. PCD assets are accounted for in accordance with ASC Subtopic 326-20 and are initially recorded at fair value as determined by the sum of the present value of expected future cash flows and an allowance for credit losses at acquisition. The allowance for PCD assets is recorded through a gross-up effect, while the allowance for acquired non-PCD assets such as loans is recorded through provision expense, consistent with originated loans. Thus, the determination of which assets are PCD and non-PCD can have a significant effect on the accounting for these assets.

    Subsequent to acquisition, the allowance for PCD loans will generally follow the same estimation, provision and charge-off process as non-PCD acquired and originated loans. Additionally, TDR identification for acquired loans (PCD and non-PCD) will be consistent with the TDR identification for originated loans.

Allowance for Credit Losses on Debt Securities

Management measures expected credit losses on held-to-maturity debt securities on a collective basis by major security type. Management classifies the held-to-maturity portfolio into the following major security types: mortgage-backed securities, municipal and corporate bonds, trust preferred securities (“TruPS”) and other. Nearly all of the mortgage-backed securities in the Company's portfolio are issued by U.S. government agencies and are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses and therefore the expectation of non-payment is zero.

At each reporting period, the Company evaluates whether the securities in a segment continue to exhibit similar risk characteristics as the other securities in the segment. If the risk characteristics of a security change, such that they are no longer similar to other securities in the segment, the Company will evaluate the security with a different segment that shares more similar risk characteristics.

In estimating the net amount expected to be collected for mortgage-backed securities and municipal and corporate bonds, a range of historical losses method is utilized. In estimating the net amount expected to be collected for TruPS, the Company employs a single scenario forecast methodology. The scenario is informed by historical industry default data as well as current and near term operating conditions for the banks and other financial institutions that are the underlying issuers. In addition, expected prepayments are included in the analysis of the individually assessed TruPS applied at the collateral level.

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures

The Company is required to include the unfunded commitment that is expected to be funded in the future within the allowance calculation. The Company participates in lending that results in an off-balance sheet unfunded commitment balance. The Company currently underwrites funding commitments with conditionally cancelable language. To determine the expected funding balance remaining, the Company uses a historical utilization rate for each of the segments to calculate the expected commitment balance. The reserve percentage for each respective loan portfolio is applied to the remaining unused portion of the

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expected commitment balance and the expected funded commitment in determining the allowance for credit loss on off-balance sheet credit exposures.

Derivative Financial Instruments. As required by ASC 815, the Company records all derivatives on the balance sheet at fair value.  The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.  Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge.  The Company may enter into derivative contracts that are intended to economically hedge certain of its risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.  

Executive Summary

During 2020 and continuing into 2021, the entire country has been negatively impacted by the COVID-19 pandemic. Beginning in March 2020, the impacts of the COVID-19 pandemic, including social distancing guidelines, closure of non-essential businesses and shelter-at-home mandates, caused a global economic downturn. The economic downturn included an increase in unemployment and a decline in gross domestic product. Since April 2020, the unemployment rate has declined but remains elevated above the pre-pandemic unemployment rate. Gross domestic product grew in the third and fourth quarters of 2020 and first quarter of 2021 after declining in the first and second quarters of 2020.

We continue to monitor developments related to COVID-19, including, but not limited to, its impact on our employees, customers, communities and results of operations. All of our branches have normal operating hours and all lobbies have re-opened for our clients. In addition, the majority of our corporate workforce has returned to our corporate offices in some capacity while the remainder continue to work remotely in an effective manner. Proper protocols have been put in place in our branches and corporate offices to ensure the continued safety of our employees and customers.

As a result of the pandemic, certain borrowers are currently unable to meet their contractual payment obligations. While we have continued to support our customers by granting payment deferrals for those experiencing continued hardship because of the pandemic, we have also worked diligently with our customers to ensure a return to current payment status for a significant portion of our clients who have ended their deferral period. At June 30, 2021, loans with an aggregate outstanding balance of approximately $599 million were in COVID-19 related deferment.

Citizens Financial Group, Inc. Merger Agreement

On July 28, 2021, Citizens Financial Group, Inc. (“Citizens”) and Investors Bancorp, Inc. (“Investors”) announced that they have entered into a definitive agreement and plan of merger under which Citizens will acquire all of the outstanding shares of Investors for a combination of stock and cash. Under the terms of the agreement and plan of merger, shareholders of Investors will receive 0.297 of a share of Citizens common stock and $1.46 in cash for each share of Investors they own. Following completion of the transaction, former shareholders of Investors will collectively own approximately 14% of the combined company. The implied total transaction value based on closing prices on July 27, 2021 is approximately $3.5 billion. The agreement and plan of merger has been unanimously approved by the boards of directors of each company and the transaction is expected to close in the first or second quarter of 2022, subject to approval by the shareholders of Investors, receipt of required regulatory approvals and other customary closing conditions.

Second Quarter of 2021 Results Summary

•We reported net income of $79.8 million, or $0.34 per diluted share, for the three months ended June 30, 2021 as compared to $72.3 million, or $0.31 per diluted share, for the three months ended March 31, 2021 and $42.6 million, or $0.18 per diluted share, for the three months ended June 30, 2020.

•Return on average assets and return on average equity were 1.22% and 11.42%, respectively, for the three months ended June 30, 2021.

•Net interest margin increased 21 basis points to 3.11% for the three months ended June 30, 2021 compared to the three months ended March 31, 2021 driven by higher prepayment penalties and the lower cost of interest-bearing liabilities. Net interest margin excluding prepayment penalties increased 8 basis points.

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•Provision for credit losses was a negative $9.7 million for the three months ended June 30, 2021 compared with a negative $3.0 million for the three months ended March 31, 2021. The Company recorded net recoveries of $806,000 during the quarter ended June 30, 2021 compared to net recoveries of $1.7 million during the quarter ended March 31, 2021. The allowance for loan losses as a percent of total loans was 1.26% at June 30, 2021 compared to 1.36% at March 31, 2021.

•Total non-interest income was $13.1 million for the three months ended June 30, 2021, a decrease of $6.9 million compared to the three months ended March 31, 2021 and an increase of $2.9 million compared to the three months ended June 30, 2020.

•Total non-interest expenses were $108.4 million for the three months ended June 30, 2021, an increase of $4.1 million compared to the three months ended March 31, 2021. Included in non-interest expenses for the second quarter of 2021 were $1.7 million of acquisition-related costs.

•Non-interest-bearing deposits increased $332.5 million, or 8.7%, during the three months ended June 30, 2021. The cost of interest-bearing deposits decreased 11 basis points to 0.43% for the three months ended June 30, 2021 compared to the three months ended March 31, 2021.

•Total loans increased $494.8 million, or 2.4%, to $21.37 billion at June 30, 2021 from $20.87 billion at March 31, 2021. Multi-family loans increased $335.6 million, or 4.6%, and C&I loans increased $124.4 million, or 3.4%, during the three months ended June 30, 2021.

•At June 30, 2021, COVID-19 related loan deferrals totaled $599.0 million, or 2.8% of loans, compared to $693.0 million, or 3.3% of loans, as of March 31, 2021. Approximately 87% of borrowers with a loan payment deferral are making interest payments.

•Non-accrual loans decreased to $77.6 million, or 0.36% of total loans, at June 30, 2021 as compared to $83.3 million, or 0.40% of total loans, at March 31, 2021 and $126.8 million, or 0.59% of total loans, at June 30, 2020.

•Tier 1 Leverage, Common Equity Tier 1 Risk-Based, Tier 1 Risk-Based and Total Risk-Based Capital Ratios were 10.60%, 13.17%, 13.17% and 14.48%, respectively, at June 30, 2021.

•During July 2021, we received approval from the FDIC for the previously announced purchase of Berkshire Bank’s New Jersey and eastern Pennsylvania branches. We expect to complete the transaction on August 27, 2021.

Comparison of Operating Results for the Three and Six Months Ended June 30, 2021 and 2020

    Net Income. Net income for the three months ended June 30, 2021 was $79.8 million compared to net income of $42.6 million for the three months ended June 30, 2020. Net income for the six months ended June 30, 2021 was $152.1 million compared to net income of $82.1 million for the six months ended June 30, 2020.

    Net Interest Income. Net interest income increased by $12.7 million, or 7.0%, to $194.7 million for the three months ended June 30, 2021 from $182.0 million for the three months ended June 30, 2020. Net interest margin increased 38 basis points to 3.11% for the three months ended June 30, 2021 from 2.73% for the three months ended June 30, 2020.

Net interest income increased by $20.2 million, or 5.7%, to $375.4 million for the six months ended June 30, 2021 from $355.3 million for the six months ended June 30, 2020. Net interest margin increased 29 basis points to 3.01% for the six months ended June 30, 2021 from 2.72% for the six months ended June 30, 2020.

    Total interest and dividend income decreased by $14.4 million, or 5.8%, to $231.9 million for the three months ended June 30, 2021. Interest income on loans decreased by $6.2 million, or 2.9%, to $211.5 million for the three months ended June 30, 2021, primarily attributed to the average balance of net loans which decreased $589.4 million to $20.78 billion, driven by paydowns and payoffs, partially offset by loan originations. In addition, the weighted average yield on net loans decreased 1 basis point to 4.07%. Prepayment penalties, which are included in interest income, totaled $10.8 million for the three months ended June 30, 2021 compared to $8.1 million for the three months ended June 30, 2020. Interest income on all other interest-earning assets, excluding loans, decreased by $8.2 million, or 28.6%, to $20.3 million for the three months ended June 30, 2021 which is attributed to the average balance of all other interest-earning assets, excluding loans, which decreased $1.09 billion to $4.23 billion for the three months ended June 30, 2021. In addition, the weighted average yield on interest-earning assets, excluding loans, decreased 22 basis points to 1.92% for the three months ended June 30, 2021.

Total interest and dividend income decreased by $49.9 million, or 9.9%, to $452.4 million for the six months ended June 30, 2021. Interest income on loans decreased by $32.0 million, or 7.2%, to $410.3 million for the six months ended

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June 30, 2021, primarily as a result of a 17 basis point decrease in the weighted average yield on net loans to 3.98%. In addition, the average balance of net loans decreased $661.7 million to $20.64 billion, mainly from paydowns and payoffs, partially offset by loan originations and $453.3 million of loans acquired from Gold Coast in April 2020. Prepayment penalties, which are included in interest income, totaled $13.1 million for the six months ended June 30, 2021 compared to $15.8 million for the six months ended June 30, 2020. Interest income on all other interest-earning assets, excluding loans, decreased by $17.9 million, or 29.9%, to $42.1 million for the six months ended June 30, 2021 which is attributed to the weighted average yield on interest-earning assets, excluding loans, which decreased 54 basis points to 1.94%. In addition, the average balance of all other interest-earning assets, excluding loans, decreased $499.5 million to $4.34 billion for the six months ended June 30, 2021.

    Total interest expense decreased by $27.1 million, or 42.2%, to $37.1 million for the three months ended June 30, 2021. Interest expense on interest-bearing deposits decreased $23.0 million, or 59.0%, to $16.0 million for the three months ended June 30, 2021. The weighted average cost of interest-bearing deposits decreased 50 basis points to 0.43% for the three months ended June 30, 2021. In addition, the average balance of total interest-bearing deposits decreased $1.98 billion, or 11.9%, to $14.71 billion for the three months ended June 30, 2021. Interest expense on borrowed funds decreased by $4.1 million, or 16.2%, to $21.1 million for the three months ended June 30, 2021. The average balance of borrowed funds decreased $1.01 billion, or 20.1%, to $4.02 billion for the three months ended June 30, 2021. Partially offsetting this decrease, the weighted average cost of borrowings increased 9 basis points to 2.10% for the three months ended June 30, 2021.

Total interest expense decreased by $70.1 million, or 47.7%, to $77.0 million for the six months ended June 30, 2021. Interest expense on interest-bearing deposits decreased $55.0 million, or 59.7%, to $37.2 million for the six months ended June 30, 2021. The weighted average cost of interest-bearing deposits decreased 66 basis points to 0.49% for the six months ended June 30, 2021. In addition, the average balance of total interest-bearing deposits decreased $850.8 million, or 5.3%, to $15.17 billion for the six months ended June 30, 2021. Interest expense on borrowed funds decreased by $15.1 million, or 27.5%, to $39.8 million for the six months ended June 30, 2021. The average balance of borrowed funds decreased $1.63 billion, or 30.4%, to $3.73 billion for the six months ended June 30, 2021. Partially offsetting this decrease, the weighted average cost of borrowings increased 8 basis points to 2.13% for the six months ended June 30, 2021.

    Provision for Credit Losses. Our provision for credit losses is primarily a result of the expected credit losses on our loans, unfunded commitments and held-to-maturity debt securities over the life of these financial instruments based on historical experience, current conditions, and reasonable and supportable forecasts. Our provision for credit losses is also impacted by the inherent credit risk in these financial instruments, the composition of and changes in our portfolios of these financial instruments, and the level of charge-offs. At June 30, 2021, our allowance for credit losses and related provision continued to be affected by the impact of the COVID-19 pandemic on the current and forecasted economic conditions. During the three months ended June 30, 2021, there was continued improvement in the U.S. and global macroeconomic consensus outlooks, which resulted in an improvement in the economic outlook used to determine the provision for credit losses when compared to June 30, 2020. For the three months ended June 30, 2021, our provision for credit losses was negative $9.7 million, compared to $33.3 million for the three months ended June 30, 2020. For the three months ended June 30, 2021, net loan recoveries were $806,000 compared to net loan charge-offs of $4.1 million for the three months ended June 30, 2020. For the six months ended June 30, 2021, our provision for credit losses was negative $12.7 million, compared to $64.5 million for the six months ended June 30, 2020. For the six months ended June 30, 2021, net loan recoveries were $2.5 million compared to net loan charge-offs of $12.1 million for the six months ended June 30, 2020.

    Non-Interest Income. Total non-interest income increased $2.9 million to $13.1 million for the three months ended June 30, 2021. The increase was due primarily to an increase of $3.5 million in fees and service charges primarily related to our mortgage servicing rights valuation and an increase of $2.1 million in income from our wealth and investment products, partially offset by a decrease of $2.3 million in gain on loans due to a lower volume of mortgage banking loan sales to third parties.

Total non-interest income increased $8.3 million to $33.1 million for the six months ended June 30, 2021. The increase in non-interest income was due primarily to an increase of $3.3 million in fees and service charges related to our mortgage servicing rights valuation, an increase of $2.8 million in income from our wealth and investment products, an increase of $1.1 million in PPP referral income and an increase of $819,000 in customer swap fee income.

    Non-Interest Expenses. Total non-interest expenses were $108.4 million for the three months ended June 30, 2021, an increase of $8.4 million, or 8.4%, compared to the three months ended June 30, 2020. The increase was driven by an increase of $5.6 million in compensation and fringe benefit expense primarily related to medical expenses and incentive compensation. Included in non-interest expenses for the second quarter of 2021 were $1.7 million of acquisition-related costs.

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Total non-interest expenses were $212.8 million for the six months ended June 30, 2021, an increase of $10.2 million, or 5.0%, compared to the six months ended June 30, 2020. This increase was driven by an increase of $7.6 million in compensation and fringe benefit expense primarily related to medical expenses and incentive compensation.

    Income Taxes. Income tax expense for the second quarter of 2021 was $29.2 million compared to $16.2 million for the second quarter 2020.  The effective tax rate was 26.8% for the three months ended June 30, 2021 and 27.6% for the three months ended June 30, 2020. Income tax expense for the six months ended June 30, 2021 was $56.3 million compared to $30.9 million for the six months ended June 30, 2020.  The effective tax rate was 27.0% for the six months ended June 30, 2021 and 27.3% for the six months ended June 30, 2020. The effective tax rate is affected by the level of income earned that is exempt from tax relative to the overall level of pre-tax income and the level of expenses not deductible for tax purposes relative to the overall level of pre-tax income. In addition, the effective tax rate is affected by the level of income allocated to the various state and local jurisdictions where we operate, because tax rates differ among such jurisdictions.

Analysis of Net Interest Income

Net interest income represents the difference between income we earn on our interest-earning assets and the expense we pay on interest-bearing liabilities. Net interest income depends on the volume of interest-earning assets and interest-bearing liabilities and the interest rates earned on such assets and paid on such liabilities.

Average Balances and Yields. The following tables set forth average balance sheets, average yields and costs, and certain other information for the periods indicated. No tax-equivalent yield adjustments were made, as the effect thereof was not material. All average balances are daily average balances. Non-accrual loans were included in the computation of average balances, however interest receivable on these loans have been fully reserved for and not included in interest income. The yields set forth below include the effect of deferred fees, discounts and premiums that are amortized or accreted to interest income or expense.

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	Three Months Ended June 30,
	2021						2020
	Average Outstanding Balance		Interest Earned/ Paid		Average Yield/ Rate		Average Outstanding Balance		Interest Earned/ Paid		Average Yield/ Rate
	(Dollars in thousands)
Interest-earning assets:
Interest-bearing deposits	$	264,693	$	38	0.06	%	$	1,292,904	$	294	0.09	%
Equity securities	13,225		63		1.91	%	6,166		32		2.08	%
Debt securities available-for-sale	2,585,131		10,587		1.64	%	2,631,028		15,627		2.38	%
Debt securities held-to-maturity, net	1,171,317		7,657		2.61	%	1,145,553		8,531		2.98	%
Net loans	20,777,927		211,523		4.07	%	21,367,323		217,733		4.08	%
Stock in FHLB	194,845		1,983		4.07	%	247,971		3,997		6.45	%
Total interest-earning assets	25,007,138		231,851		3.71	%	26,690,945		246,214		3.69	%
Non-interest-earning assets	1,121,153						1,125,776
Total assets	$	26,128,291					$	27,816,721
Interest-bearing liabilities:
Savings deposits	$	2,008,855	$	1,404	0.28	%	$	2,051,599	$	2,907	0.57	%
Interest-bearing checking	6,044,766		6,536		0.43	%	5,891,587		8,873		0.60	%
Money market accounts	4,365,351		4,501		0.41	%	4,345,850		9,880		0.91	%
Certificates of deposit	2,291,616		3,552		0.62	%	4,406,310		17,331		1.57	%
Total interest-bearing deposits	14,710,588		15,993		0.43	%	16,695,346		38,991		0.93	%
Borrowed funds	4,019,587		21,148		2.10	%	5,030,118		25,236		2.01	%
Total interest-bearing liabilities	18,730,175		37,141		0.79	%	21,725,464		64,227		1.18	%
Non-interest-bearing liabilities	4,603,486						3,458,409
Total liabilities	23,333,661						25,183,873
Stockholders’ equity	2,794,630						2,632,848
Total liabilities and stockholders’ equity	$	26,128,291					$	27,816,721
Net interest income			$	194,710					$	181,987
Net interest rate spread(1)					2.92	%					2.51	%
Net interest-earning assets(2)	$	6,276,963					$	4,965,481
Net interest margin(3)					3.11	%					2.73	%
Ratio of interest-earning assets to total interest-bearing liabilities	1.34						1.23

(1)Net interest rate spread represents the difference between the yield on average interest-earning assets and the cost of average interest-bearing liabilities.

(2)Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.

(3)Net interest margin represents net interest income divided by average total interest-earning assets.

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	Six Months Ended June 30,
	2021						2020
	Average Outstanding Balance		Interest Earned/ Paid		Average Yield/ Rate		Average Outstanding Balance		Interest Earned/ Paid		Average Yield/ Rate
	(Dollars in thousands)
Interest-earning assets:
Interest-bearing deposits	$	319,342	$	99	0.06	%	$	830,466	$	1,134	0.27	%
Equity securities	24,324		329		2.71	%	6,128		65		2.12	%
Debt securities available-for-sale	2,617,290		21,855		1.67	%	2,606,451		32,898		2.52	%
Debt securities held-to-maturity	1,196,793		15,656		2.62	%	1,136,836		17,525		3.08	%
Net loans	20,635,564		410,273		3.98	%	21,297,309		442,262		4.15	%
Stock in FHLB	182,170		4,183		4.59	%	259,507		8,429		6.50	%
Total interest-earning assets	24,975,483		452,395		3.62	%	26,136,697		502,313		3.84	%
Non-interest-earning assets	1,130,432						1,041,099
Total assets	$	26,105,915					$	27,177,796
Interest-bearing liabilities:
Savings deposits	$	2,011,367	$	2,884	0.29	%	$	2,042,680	$	6,815	0.67	%
Interest-bearing checking	6,160,437		13,564		0.44	%	5,728,476		25,533		0.89	%
Money market accounts	4,529,517		11,661		0.51	%	4,082,474		24,104		1.18	%
Certificates of deposit	2,463,766		9,076		0.74	%	4,162,221		35,718		1.72	%
Total interest-bearing deposits	15,165,087		37,185		0.49	%	16,015,851		92,170		1.15	%
Borrowed funds	3,729,050		39,765		2.13	%	5,355,731		54,873		2.05	%
Total interest-bearing liabilities	18,894,137		76,950		0.81	%	21,371,582		147,043		1.38	%
Non-interest-bearing liabilities	4,445,327						3,173,754
Total liabilities	23,339,464						24,545,336
Stockholders’ equity	2,766,451						2,632,460
Total liabilities and stockholders’ equity	$	26,105,915					$	27,177,796
Net interest income			$	375,445					$	355,270
Net interest rate spread(1)					2.81	%					2.46	%
Net interest-earning assets(2)	$	6,081,346					$	4,765,115
Net interest margin(3)					3.01	%					2.72	%
Ratio of interest-earning assets to total interest-bearing liabilities	1.32						1.22

(1)Net interest rate spread represents the difference between the yield on average interest-earning assets and the cost of average interest-bearing liabilities.

(2)Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.

(3)Net interest margin represents net interest income divided by average total interest-earning assets.

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Comparison of Financial Condition at June 30, 2021 and December 31, 2020

    Total Assets. Total assets increased by $779.0 million, or 3.0%, to $26.80 billion at June 30, 2021 from December 31, 2020. Cash and cash equivalents increased by $600.0 million to $770.4 million at June 30, 2021 from December 31, 2020. Net loans increased by $502.1 million, or 2.4%, to $21.08 billion at June 30, 2021 from December 31, 2020. Securities decreased by $309.4 million, or 7.7%, to $3.73 billion at June 30, 2021 from December 31, 2020.

    Net Loans. Net loans increased by $502.1 million to $21.08 billion at June 30, 2021 from $20.58 billion at December 31, 2020. The detail of the loan portfolio is below:

	June 30, 2021		December 31, 2020
	(Dollars in thousands)
Commercial loans:
Multi-family loans	$	7,566,131	7,122,840
Commercial real estate loans	4,968,393		4,947,212
Commercial and industrial loans	3,766,551		3,575,641
Construction loans	464,887		404,367
Total commercial loans	16,765,962		16,050,060
Residential mortgage loans	3,887,917		4,119,894
Consumer and other	712,147		702,801
Total loans	21,366,026		20,872,755
Deferred fees, premiums and other, net	(13,391)		(9,318)
Allowance for loan losses	(270,114)		(282,986)
Net loans	$	21,082,521	20,580,451

    During the six months ended June 30, 2021, we originated or funded $1.25 billion in multi-family loans, $658.8 million in residential loans, $572.4 million in commercial and industrial loans, $412.5 million in commercial real estate loans, $47.2 million in construction loans and $33.4 million in consumer and other loans. Our originations reflect our continued focus on diversifying our loan portfolio. A significant portion of our commercial loan portfolio, including commercial and industrial loans, are secured by commercial real estate and are primarily on properties and businesses located in New Jersey and New York.

    One of our key operating objectives has been, and continues to be, maintaining a high level of asset quality. We maintain sound credit standards for new loan originations and purchases. We do not originate or purchase sub-prime loans, negative amortization loans or option ARM loans. Our portfolio contains interest-only and no income verification residential mortgage loans. We have not originated residential mortgage loans without verifying income in recent years. As of June 30, 2021, these loans totaled $94.1 million. As of June 30, 2021, interest-only residential and consumer loans totaled $21.9 million, which represented less than 1% of the residential and consumer portfolio. Although it is not a standard product offering for commercial real estate and multi-family loans, we originate interest-only in addition to amortizing loans in these segments. As of June 30, 2021, these loans totaled $1.91 billion. As part of our underwriting, these loans are evaluated as fully amortizing for risk classification purposes, with the interest-only period ranging from one to ten years. In addition, we evaluate our policy limits on a regular basis. We believe these criteria adequately control the potential risks of such loans and that adequate provisions for loan losses are provided for all known and inherent risks. Since April 2020, we have, at the request of commercial borrowers experiencing financial difficulty resulting from the pandemic, temporarily deferred the payment of principal and/or interest for an agreed-upon period of time. Although a significant portion of these loans are paying interest-only during the deferral period, they are not included in the amount of interest-only loans disclosed in this section.

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Loan Deferrals. While we have continued to support our customers by granting payment deferrals for those experiencing continued hardship because of the pandemic, we have also worked diligently with our customers to ensure a return to current payment status for a significant portion of our clients who have ended their initial deferral period. At May 4, 2020, loans with an aggregated outstanding balance of $4.3 billion, or 20.1% of total loans, were in COVID-19 related deferment. Since then, customers representing over $3.7 billion have ended their COVID-19 related deferrals and as of June 30, 2021, loans with an aggregate outstanding balance of approximately $599.0 million, or 2.8% of total loans, were in COVID-19 related deferment.

The following table presents the balance of deferred loans in the Company’s loan portfolio by loan segment, industry sector and type of deferral as of June 30, 2021.

Segment and industry sector	Principal and Interest Deferral		Principal Deferral	Total	Deferred Loan % of Total Loans (1)
	(Dollars in millions)
Commercial and industrial
Accommodation and food service	$	2	173	175	0.8	%
Arts, entertainment and recreation	—		32	32	0.2	%
Real estate and rental	—		1	1	—	%
Total deferred commercial and industrial	2		206	208	1.0	%
Commercial real estate
Office	—		40	40	0.2	%
Accommodation and food service	2		70	72	0.3	%
Other	—		3	3	—	%
Total deferred commercial real estate	2		113	115	0.5	%
Construction	—		—	—	—	%
Multi-family	—		201	201	0.9	%
Total deferred commercial loans	4		520	524	2.4	%
Residential and consumer	75		—	75	0.4	%
Total deferred loans (2)	$	79	520	599	2.8	%

(1) Percentage calculated using total loan balance as of June 30, 2021.

(2) Of the total deferred loans, approximately 23% of the deferments expire in the third quarter of 2021, 35% in the fourth quarter of 2021 with the remainder expiring in January 2022.

Given the unprecedented uncertainty and continually evolving economic effects and social impacts of the COVID-19 pandemic, the future direct and indirect impact on our business, results of operations and financial condition are highly uncertain. Should economic conditions deteriorate the macroeconomic environment may have an adverse effect on our business and results of operations, including additional borrower deferral requests, delinquent loans and non-accrual loans. For more information on how the risks related to COVID-19 may adversely affect our business, results of operations and financial condition, reference is made to Item 1A “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.

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The following table presents the Company’s loan portfolio at June 30, 2021 by industry sector:

Segment/Industry	Loan Balance (in millions)		% of Total Segment
Commercial and industrial:
Accommodation and food service	$	290	8	%
Administrative and support and waste management	149		4	%
Agriculture, forestry, fishing and hunting	23		1	%
Arts, entertainment, and recreation	70		2	%
Construction	298		8	%
Educational service	126		3	%
Finance and insurance	251		7	%
Health care and social assistance	636		17	%
Information	132		4	%
Management of companies and enterprises	5		0	%
Manufacturing	196		5	%
Mining, quarrying, and oil and gas extraction	49		1	%
Professional, scientific, and technical services	115		3	%
Public administration	1		0	%
Real estate and rental	605		16	%
Retail trade - clothing, home, gasoline, health	149		4	%
Retail trade - sporting, hobby, vending, e-commerce	9		0	%
Transportation - air, rail, truck, water, pipeline	215		6	%
Utilities	2		0	%
Wholesale trade	218		6	%
Other	228		6	%
Total commercial and industrial	$	3,767	100	%
Commercial real estate:
Accommodation and food service	$	105	2	%
Arts, entertainment, and recreation	14		0	%
Health care and social assistance	144		3	%
Mixed use property	503		10	%
Office	1,216		24	%
Retail store	900		18	%
Shopping center	987		20	%
Warehouse	690		14	%
Other	409		8	%
Total commercial real estate	$	4,968	100	%
Multi-family	7,566		100	%
Construction	465		100	%
Residential and consumer	4,600		100	%
Total loans	$	21,366	100	%

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Non-Performing Loans. The following table sets forth non-accrual loans (excluding loans held-for-sale) and accruing troubled debt restructured loans on the dates indicated as well as certain asset quality ratios:

	June 30, 2021				March 31, 2021				December 31, 2020				September 30, 2020				June 30, 2020
	# of Loans	Amount			# of Loans	Amount			# of Loans	Amount			# of Loans	Amount			# of Loans	Amount
	(dollars in millions)
Multi-family	11	$	16.6		13	$	19.2		15	$	35.6		13	$	51.1		14	$	48.3
Commercial real estate	24	13.0			25	14.0			29	15.9			28	17.8			22	12.3
Commercial and industrial	13	5.2			15	4.4			21	9.2			19	10.9			29	15.6
Construction	—	—			—	—			—	—			—	—			—	—
Total commercial loans	48	34.8			53	37.6			65	60.7			60	79.8			65	76.2
Residential and consumer	232	42.8			239	45.7			246	46.4			250	52.2			255	50.6
Total non-accrual loans	280	$	77.6		292	$	83.3		311	$	107.1		310	$	132.0		320	$	126.8
Accruing troubled debt restructured loans	49	$	9.3		45	$	9.1		47	$	9.2		51	$	9.8		52	$	12.2
Non-accrual loans to total loans		0.36		%		0.40		%		0.51		%		0.63		%		0.59		%
Allowance for loan losses as a percent of non-accrual loans		348.05		%		340.60		%		264.17		%		217.75		%		215.48		%
Allowance for loan losses as a percent of total loans		1.26		%		1.36		%		1.36		%		1.37		%		1.28		%

    Total non-accrual loans were $77.6 million at June 30, 2021 compared to $83.3 million at March 31, 2021 and $126.8 million at June 30, 2020. At June 30, 2021, there were $2.2 million of multi-family loans, $2.1 million of commercial and industrial loans and $1.9 million of commercial real estate loans that were classified as non-accrual which were performing in accordance with their contractual terms. Criticized and classified loans as a percent of total loans decreased to 7.66% at June 30, 2021 from 7.99% at December 31, 2020. We continue to proactively and diligently work to resolve our troubled loans.

During the six months ended June 30, 2021, we sold three non-performing multi-family loans totaling $19.9 million and recognized a recovery of $1.4 million in the allowance for credit losses on the sale of one of the loans. Also during the six months ended June 30, 2021, we sold a $762,000 non-performing commercial real estate loan.

    At June 30, 2021, there were $28.3 million of loans deemed as TDRs, of which $23.4 million were residential and consumer loans, $4.5 million were commercial real estate loans and $430,000 were commercial and industrial loans. TDRs of $9.3 million were classified as accruing and $19.0 million were classified as non-accrual at June 30, 2021. Included were $1.4 million of residential loans deemed to be TDRs as the borrower was granted a payment deferral related to COVID-19 but did not meet the criteria to be excluded from TDR as described in Note 6, Loans Receivable, Net.

    In addition to non-accrual loans, we continue to monitor our portfolio for potential problem loans. Potential problem loans are defined as loans about which we have concerns as to the ability of the borrower to comply with the current loan repayment terms and which may cause the loan to be placed on non-accrual status. As of June 30, 2021, we have deemed potential problem loans totaling $81.7 million, which is comprised of 13 multi-family loans totaling $64.1 million, 5 commercial and industrial loans totaling $15.5 million and 4 commercial real estate loans totaling $2.1 million. In addition, we continue to support our customers by deferring payments for borrowers experiencing hardship because of the COVID-19 pandemic. As of June 30, 2021, $599 million, or 2.8%, of loans were deferring principal and/or interest payments. For further information, please refer to the Loan Deferrals disclosure above. Management is actively monitoring all of these loans.

    The ratio of non-accrual loans to total loans was 0.36% at June 30, 2021 compared to 0.51% at December 31, 2020. The allowance for loan losses as a percentage of non-accrual loans was 348.05% at June 30, 2021 compared to 264.17% at

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December 31, 2020. At June 30, 2021, our allowance for loan losses as a percentage of total loans was 1.26% compared to 1.36% at December 31, 2020.

    Allowance for Credit Losses on Loans. The allowance for loan losses decreased by $12.9 million to $270.1 million at June 30, 2021 from $283.0 million at December 31, 2020. The decrease reflects a negative provision for loan losses of $15.4 million, partially offset by an increase of $2.5 million resulting from net loan recoveries. Our allowance for loan losses at June 30, 2021 was affected by the improving current and forecasted economic conditions. Future increases in the allowance for loan losses may be necessary based on the composition of and change in the loan portfolio, the level of loan delinquency and the current and forecasted economic condition over the life of our loans.

The following table sets forth the allowance for credit losses on loans allocated by loan category and the percent of loans in each category to total loans at the dates indicated. The allowance for credit losses allocated to each category is the estimated amount considered necessary to cover lifetime expected credit losses inherent in any particular category as of the balance sheet date and does not restrict the use of the allowance to absorb losses in other categories.

	June 30, 2021				December 31, 2020
	Allowance for Loan Losses		Percent of Loans in Each Category to Total Loans		Allowance for Loan Losses		Percent of Loans in Each Category to Total Loans
	(Dollars in thousands)
End of period allocated to:
Multi-family loans	$	61,711	35.4	%	$	56,731	34.1	%
Commercial real estate loans	93,453		23.3	%	115,918		23.7	%
Commercial and industrial loans	82,841		17.6	%	79,327		17.1	%
Construction loans	12,820		2.2	%	7,267		2.0	%
Residential mortgage loans	16,189		18.2	%	19,941		19.7	%
Consumer and other loans	3,100		3.3	%	3,802		3.4	%
Total allowance	$	270,114	100.0	%	$	282,986	100.0	%

Securities. Securities are held primarily for liquidity, interest rate risk management and yield enhancement. Our Investment Policy requires that investment transactions conform to Federal and State investment regulations. Our investments purchased may include, but are not limited to, U.S. Treasury obligations, securities issued by various Federal Agencies, State and Municipal subdivisions, mortgage-backed securities, certain certificates of deposit of insured financial institutions, overnight and short-term loans to other banks, corporate debt instruments, and mutual funds. In addition, we may invest in equity securities subject to certain limitations. Purchase and sale decisions are based upon a thorough pre-transaction analysis of each instrument to determine if it conforms to our overall asset/liability management objectives. The analysis must consider its effect on our risk-based capital measurement, prospects for yield and/or appreciation and other risk factors. Debt securities are classified as held-to-maturity or available-for-sale when purchased.

    At June 30, 2021, our securities portfolio represented 13.9% of our total assets. Securities, in the aggregate, decreased by $309.4 million, or 7.7%, to $3.73 billion at June 30, 2021 from December 31, 2020. This decrease was primarily a result of paydowns and sales, partially offset by purchases. At June 30, 2021, our allowance for credit losses on held-to-maturity debt securities was $2.1 million.

Stock in the Federal Home Loan Bank, Bank Owned Life Insurance and Other Assets. The amount of stock we own in the FHLB increased by $40.0 million, or 25.0%, to $199.8 million at June 30, 2021 from $159.8 million at December 31, 2020. The amount of stock we own in the FHLB is primarily related to the balance of our outstanding borrowings from the FHLB. Bank owned life insurance was $226.3 million at June 30, 2021 and $223.7 million at December 31, 2020. Other assets were $145.2 million at June 30, 2021 and $163.2 million at December 31, 2020. The decrease in other assets was primarily driven by hedge-related assets.

Deposits.  At June 30, 2021, deposits totaled $19.44 billion, representing 81.0% of our total liabilities. Our deposit strategy is focused on attracting core deposits (savings, checking and money market accounts), resulting in a deposit mix of lower cost core products. We are committed to our plan of attracting more core deposits because they represent a more stable source of low cost funds and may be less sensitive to changes in market interest rates.

We have a suite of commercial deposit and treasury management products, designed to appeal to small and mid-sized businesses and non-profit organizations including electronic deposit services such as mobile and remote deposit capture. Interest rates, maturity terms, service fees and withdrawal penalties are all reviewed on a periodic basis. Deposit rates and terms are based primarily on our current operating strategies, market rates, liquidity requirements and competitive forces. We

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also rely on personalized customer service, long-standing relationships with customers and an active marketing program to attract and retain deposits.

Deposits decreased by $86.5 million, or 0.4%, to $19.44 billion at June 30, 2021 from $19.53 billion at December 31, 2020 primarily driven by decreases in money market and time deposits, offset by an increase in checking account deposits. Checking accounts increased $817.7 million to $10.52 billion at June 30, 2021 from $9.71 billion at December 31, 2020. Core deposits represented approximately 88% of our total deposit portfolio at June 30, 2021 compared to 86% at December 31, 2020.

The following table sets forth the distribution of total deposit accounts, by account type, at the dates indicated:

	June 30, 2021				December 31, 2020
	Balance		Percent of Total Deposits		Balance		Percent of Total Deposits
	(Dollars in thousands)
Non-interest bearing:
Checking accounts	$	4,169,816	21.4	%	$	3,663,073	18.8	%
Interest-bearing:
Checking accounts	6,354,368		32.7	%	6,043,393		30.9	%
Money market deposits	4,551,806		23.4	%	5,037,327		25.8	%
Savings	2,076,711		10.7	%	2,063,447		10.6	%
Certificates of deposit	2,286,265		11.8	%	2,718,179		13.9	%
Total Deposits	$	19,438,966	100.0	%	$	19,525,419	100.0	%

Borrowed Funds.  Borrowings are primarily with the FHLB and are collateralized by our residential and commercial mortgage portfolios. Borrowed funds increased by $738.1 million, or 22.4%, to $4.03 billion at June 30, 2021 from $3.30 billion at December 31, 2020 to support balance sheet growth.

Stockholders’ Equity. Stockholders’ equity increased by $104.0 million to $2.81 billion at June 30, 2021 from $2.71 billion at December 31, 2020. The increase was primarily attributed to net income of $152.1 million, other comprehensive income of $17.7 million and share-based plan activity of $15.5 million for the six months ended June 30, 2021. These increases were partially offset by cash dividends paid of $0.28 per share totaling $69.2 million and the repurchase of 1.0 million shares of common stock for $12.0 million during the six months ended June 30, 2021.

Liquidity and Capital Resources

    The Company’s primary sources of funds are deposits, principal and interest payments on loans and securities, FHLB advances and other borrowings and, to a lesser extent, proceeds from the sale of loans and investment maturities. While scheduled amortization of loans is usually a predictable source of funds, deposit flows and mortgage and loan prepayments are greatly influenced by general interest rates, economic conditions and competition. The Company has other sources of liquidity, including unsecured overnight lines of credit, brokered deposits and other types of borrowings. The Company’s total borrowing capacity from the FHLB and other borrowing sources was approximately $22.69 billion, which includes outstanding borrowings at June 30, 2021. Excluding outstanding borrowings, available borrowing capacity and other available liquidity sources totaled approximately $12.57 billion at June 30, 2021. Our Asset Liability Committee is responsible for establishing and monitoring our liquidity targets and strategies to ensure that sufficient liquidity exists for meeting the needs of our customers as well as unanticipated contingencies. These liquidity risk management practices have allowed us to effectively manage the market stress related to the COVID-19 pandemic that began in the first quarter of 2020.

    At June 30, 2021, the Company had no overnight borrowings outstanding. The Company had $188.0 million of overnight borrowings outstanding at December 31, 2020. The Company borrows directly from the FHLB and various financial institutions. The Company had total borrowings of $4.03 billion at June 30, 2021, an increase of $738.1 million from $3.30 billion at December 31, 2020.

    In the normal course of business, the Company routinely enters into various commitments, primarily relating to the origination of loans. At June 30, 2021, commitments to originate loans totaled $259.1 million; unused home equity lines of credit and undisbursed business and construction loans totaled approximately $2.29 billion; and outstanding standby letters of credit totaled $47.9 million. There were no outstanding commitments to sell loans. The Company expects to have sufficient funds available to meet current commitments in the normal course of business. Time deposits scheduled to mature in one year or less totaled $2.01 billion at June 30, 2021. Based upon historical experience, management estimates that a significant portion of such deposits will remain with the Company.

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    Credit ratings and outlooks are opinions expressed by rating agencies on our creditworthiness and that of our obligations or securities, including long-term debt, short-term borrowings, preferred stock and other securities. On May 24, 2021 S&P revised our rating outlook to stable from negative to reflect decreasing economic risks and on July 30, 2021 our rating was placed on positive after the acquisition agreement with Citizens Financial Group was announced. In May 2020, S&P had revised our rating outlook to negative due to economic downturn from COVID-19.

Regulatory Capital and Developments.

Capital Requirements. Federal regulations require FDIC insured depository institutions to meet several minimum capital standards: a common equity Tier 1 capital to risk-based assets ratio of 4.5%, a Tier 1 capital to risk-based assets ratio of 6.0%, a total capital to risk-based assets of 8.0%, and a 4.0% Tier 1 capital to total assets leverage ratio.

Common equity Tier 1 capital is generally defined as common stockholders’ equity and retained earnings. Tier 1 capital is generally defined as common equity Tier 1 and additional Tier 1 capital. Additional Tier 1 capital includes certain noncumulative perpetual preferred stock and related surplus and minority interests in equity accounts of consolidated subsidiaries. Total capital includes Tier 1 capital (common equity Tier 1 capital plus additional Tier 1 capital) and Tier 2 capital. Tier 2 capital is comprised of capital instruments and related surplus meeting specified requirements, and may include cumulative preferred stock and long-term perpetual preferred stock, mandatory convertible securities, intermediate preferred stock and subordinated debt. Also included in Tier 2 capital is the allowance for loan and lease losses limited to a maximum of 1.25% of risk-weighted assets and, for institutions that have exercised an opt-out election regarding the treatment of accumulated other comprehensive income (“AOCI”), up to 45% of net unrealized gains on available-for-sale equity securities with readily determinable fair market values. Institutions that have not exercised the AOCI opt-out have AOCI incorporated into common equity Tier 1 capital (including unrealized gains and losses on available-for-sale-securities). The Bank exercised its AOCI opt-out election. Calculation of all types of regulatory capital is subject to deductions and adjustments specified in the regulations.

In determining the amount of risk-weighted assets for purposes of calculating risk-based capital ratios, all assets, including certain off-balance sheet assets (e.g., recourse obligations, direct credit substitutes, residual interests) are multiplied by a risk weight factor assigned by the regulations based on the risks believed inherent in the type of asset. Higher levels of capital are required for asset categories believed to present greater risk. For example, a risk weight of 0% is assigned to cash and U.S. government securities, a risk weight of 50% is generally assigned to prudently underwritten first lien one to four- family residential real estate loans, a risk weight of 100% is assigned to commercial and consumer loans, a risk weight of 150% is assigned to certain past due loans and a risk weight of between 0% to 600% is assigned to permissible equity interests, depending on certain specified factors.

In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a “capital conservation buffer” consisting of 2.5% of common equity Tier 1 capital to risk-weighted asset above the amount necessary to meet its minimum risk-based capital requirements. The capital conservation buffer requirement was phased in beginning January 1, 2016 until fully implemented at 2.5% on January 1, 2019.    

CECL Capital Implications. On January 1, 2020, the Company adopted the new accounting standard that requires the measurement of the allowance for credit loss to be based on the best estimate of lifetime expected credit losses inherent in the Company’s relevant financial asset. On March 27, 2020, in response to the COVID-19 pandemic, U.S. banking regulators issued an interim final rule that the Company adopted to delay for two years the initial adoption impact of CECL on regulatory capital, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during 2020 and 2021 (i.e. a five-year transition period). During the two-year delay, the Company will add back to common equity tier 1 capital (“CET1”) 100% of the initial adoption impact of CECL plus 25% of the cumulative quarterly changes in the allowance for credit losses (i.e., quarterly transitional amounts). After two years, starting on January 1, 2022, the quarterly transitional amounts along with the initial adoption impact of CECL will be phased out of CET1 capital over the three-year period.

    Paycheck Protection Program. On April 9, 2020, in response to the economic impact of the COVID-19 pandemic, the Federal Reserve, OCC and FDIC issued an interim final rule that excludes loans pledged as collateral to the Federal Reserve’s PPP Lending Facility from supplemental leverage ratio exposure, average total consolidated assets and Advanced and Standardized risk-weighted assets. Additionally, PPP loans, which are guaranteed by the Small Business Administration, will receive a zero percent risk weight under the Basel 3 Advanced and Standardized approaches regardless of whether they are pledged as collateral to the PPP Lending Facility. On December 27, 2020, the Consolidated Appropriations Act, 2021, was enacted and included a reopening of the PPP. The Company does not have a material concentration of PPP loans for which risk-weighted assets will be impacted.

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As of June 30, 2021, the Bank and the Company were considered “well capitalized” under applicable regulations and exceeded all regulatory capital requirements as follows:

	As of June 30, 2021 (1)
	Actual				Minimum Capital Requirement with Conservation Buffer				To be Well Capitalized under Prompt Corrective Action Provisions (2)
	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
Bank:
Tier 1 Leverage Ratio	$	2,440,375	9.39	%	$	1,039,813	4.00	%	$	1,299,766	5.00	%
Common Equity Tier 1 Risk-Based Capital	2,440,375		11.67	%	1,463,983		7.00	%	1,359,412		6.50	%
Tier 1 Risk Based Capital	2,440,375		11.67	%	1,777,693		8.50	%	1,673,123		8.00	%
Total Risk-Based Capital	2,701,929		12.92	%	2,195,974		10.50	%	2,091,404		10.00	%
Investors Bancorp, Inc.:
Tier 1 Leverage Ratio	$	2,759,117	10.60	%	$	1,041,652	4.00	%	n/a		n/a
Common Equity Tier 1 Risk-Based Capital	2,759,117		13.17	%	1,466,857		7.00	%	n/a		n/a
Tier 1 Risk Based Capital	2,759,117		13.17	%	1,781,184		8.50	%	n/a		n/a
Total Risk-Based Capital	3,034,679		14.48	%	2,200,286		10.50	%	n/a		n/a

(1) For purposes of calculating Tier 1 leverage ratio, assets are based on adjusted total average assets. In calculating Tier 1 risk-based capital and Total risk-based capital, assets are based on total risk-weighted assets.

(2) Prompt corrective action provisions do not apply to the bank holding company.

Contractual Obligations and Off-Balance Sheet Arrangements

    Contractual Obligations and Commitments. In the ordinary course of business, we routinely enter into various financial obligations, including contractual obligations that may require future cash payments. As a financial provider, we routinely enter into commitments to extend credit, including loan commitments, standby and commercial letters of credit as well as unused lines of credit as discussed above in Liquidity and Capital Resources. While these contractual obligations represent our potential future cash requirements, a significant portion of our commitments to extend credit may expire without being drawn upon. Such commitments are subject to the same credit policies and approval processes that we use for loans that we originate.

The following table shows the contractual obligations of the Company by expected payment period as of June 30, 2021:

Contractual Obligations	Total		Less than One Year	One-Two Years	Two-Three Years	More than Three Years
	(In thousands)
Debt obligations (excluding finance leases)	$	4,033,864	2,549,830	648,813	547,899	287,322
Commitments to originate and purchase loans	$	259,087	259,087	—	—	—
Commitments to sell loans	$	—	—	—	—	—

    Debt obligations include borrowings from the FHLB and other borrowings. The borrowings have defined terms, and none of the borrowings were callable at the option of the lender as of June 30, 2021. Additionally, at June 30, 2021, the Company’s commitments to fund unused lines of credit totaled $2.29 billion. Commitments to extend credit are agreements to lend to customers as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

    In addition to the contractual obligations previously discussed, we have other liabilities which include $213.1 million of operating lease liabilities of which $3.6 million was acquired from Gold Coast during the year ended December 31, 2020. We have $1.6 million of finance lease liabilities. These contractual obligations as of June 30, 2021 have not changed significantly from December 31, 2020.

    In the normal course of business, the Company sells residential mortgage loans to third parties. These loan sales are subject to customary representations and warranties. In the event that we are found to be in breach of these representations and warranties, we may be obligated to repurchase certain of these loans.

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Derivative Instruments and Hedging Activities. The Company has entered into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s borrowings and loans. During the three and six months ended June 30, 2021, such derivatives were used (i) to hedge the variability in cash flows associated with borrowings and (ii) to hedge changes in the fair value of certain pools of prepayable fixed rate assets. These derivatives had an aggregate notional amount of $3.58 billion as of June 30, 2021. During the year ended December 31, 2020, the Company terminated two interest rate swaps with an aggregate notional amount of $475.0 million that had been used to hedge changes in the fair value of certain pools of prepayable fixed- and adjustable-rate assets. Also during the year ended December 31, 2020, the Company terminated four interest rate swaps with an aggregate notional of $400.0 million that had been designated as cash flow hedges on wholesale funding.

    The Company has credit derivatives resulting from participation in interest rate swaps provided to external lenders as part of loan participation arrangements which are, therefore, not used to manage interest rate risk in the Company’s assets or liabilities. Additionally, the Company provides interest rate risk management services to commercial customers, primarily interest rate swaps. The Company’s market risk from unfavorable movements in interest rates related to these derivative contracts is minimized by concurrently entering into offsetting derivative contracts that have identical notional values, terms and indices.

    For further information regarding our off-balance sheet arrangements and contractual obligations, see Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” in our December 31, 2020 Annual Report on Form 10-K.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

    Qualitative Analysis. One significant form of market risk is interest rate risk. Interest rate risk results from timing differences in the cash flow or re-pricing of our assets, liabilities and off-balance sheet contracts (e.g., loan commitments); the effect of loan and securities prepayments, deposit activity; “basis risk” arising from potential differences in the behavior of lending and funding rates arising from the use of different indices; and “yield curve risk” arising from changes in the term structure of interest rates. Changes in market interest rates can affect net interest income by influencing the volume and pricing of new loan originations and securities purchases, the ability of borrowers to repay variable rate loans, the volume of loan and securities prepayments and the mix and flow of deposits.

    The general objective of our interest rate risk management process is to align and manage forecasted interest rate risk with our business model and risk appetite. Our Asset Liability Committee, which consists of senior management and executives, evaluates the interest rate risk inherent in our balance sheet and operating environment to assess capital and liquidity requirements and modify our lending, investing and deposit gathering strategies accordingly. On a quarterly basis, our Board of Directors reviews various Asset Liability Committee reports that estimate the sensitivity of the economic value of equity and net interest income under various interest rate scenarios.

    Our tactics and strategies may include the use of various financial instruments, including derivatives, to manage our exposure to interest rate risk. Certain derivatives are designated as hedging instruments in a qualifying hedge accounting relationship (fair value or cash flow hedge). Hedged items can be either assets or liabilities. Given the historically low interest rate environment during 2020 and continuing into 2021, the Company proactively positioned the balance sheet in an effort to better protect against rising rates.

As of June 30, 2021, the Company had cash flow and fair value hedges with aggregate notional amounts of $3.58 billion. As of December 31, 2020, the Company had cash flow hedges with aggregate notional amounts of $3.33 billion. During the year ended December 31, 2020, the Company terminated cash flow hedges with an aggregate notional of $400.0 million. Also during the year ended December 31, 2020, the Company terminated fair value hedges with an aggregate notional of $475.0 million, and the Company had no interest rate swaps designated as fair value hedges as of December 31, 2020.

    We actively evaluate interest rate risk in connection with our lending, investing and deposit activities and our off-balance sheet positions. At June 30, 2021, 18.2% of our total loan portfolio was comprised of residential mortgages, of which approximately 25.3% was in variable rate products, while 74.7% was in fixed rate products. Our variable rate and short term fixed rate mortgage related assets have helped to reduce our exposure to interest rate fluctuations. Long term fixed-rate products may adversely impact our net interest income in a rising rate environment. The origination of commercial loans, particularly commercial and industrial loans, commercial real estate loans and multi-family loans, which have outpaced the growth in the residential portfolio in recent years, generally help reduce our interest rate risk due to their shorter term compared

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to fixed rate residential mortgage loans. In addition, we primarily invest in securities which display relatively conservative interest rate risk characteristics.

In July 2017, the Chief Executive of the United Kingdom Financial Conduct Authority, which regulates LIBOR, announced that it intends to stop persuading or compelling banks to submit rates for the calibration of LIBOR to the administrator of LIBOR after 2021. In November 2020, the LIBOR administrator announced plans to consult on easing publication of USD LIBOR on December 31, 2021 for only the one-week and two-month USD LIBOR tenors, and on June 30, 2023 for all other USD LIBOR tenors. The United States banking regulators concurrently issued a joint statement advising banks to stop new USD LIBOR issuances by the end of 2021. The Alternative Reference Rates Committee (“ARRC”) has proposed that the Secured Overnight Financing Rate (“SOFR”) is the recommended alternative rate to USD-LIBOR for use in derivatives and other financial contracts that are currently indexed to USD-LIBOR. The ARRC has proposed a paced market transition plan to SOFR from USD-LIBOR and organizations are currently working on industry wide and company specific transition plans as it relates to derivatives and cash markets exposed to USD-LIBOR. The Company has approximately $7.87 billion in financial instruments which are indexed to USD-LIBOR for which it is monitoring the activity and evaluating the related risks.

    We use an internally managed and implemented industry standard asset/liability model to complete our quarterly interest rate risk reports. The model projects net interest income based on various interest rate scenarios and horizons. We use a combination of analyses to monitor our exposure to changes in interest rates.

    Our net interest income sensitivity analysis determines the relative balance between the repricing of assets, liabilities and off-balance sheet positions over various horizons. This asset and liability analysis includes expected cash flows from loans and securities, using forecasted prepayment rates, reinvestment rates, as well as contractual and forecasted liability cash flows. This analysis identifies mismatches in the timing of asset and liability cash flows but does not necessarily provide an accurate indicator of interest rate risk because the rate forecasts and assumptions used in the analysis may not reflect actual experience. The economic value of equity (“EVE”) analysis estimates the change in the net present value (“NPV”) of assets and liabilities and off-balance sheet contracts over a range of immediate rate shock interest rate scenarios. In calculating changes in EVE, for the various scenarios we forecast loan and securities prepayment rates and deposit decay rates.

    Quantitative Analysis. The table below sets forth, as of June 30, 2021, the estimated changes in our EVE and our net interest income that would result from the designated changes in interest rates. Such changes to interest rates are calculated as an immediate and permanent change for the purposes of computing EVE and a gradual change over a one-year period for the purposes of computing net interest income. Computations of prospective effects of hypothetical interest rate changes are based on numerous assumptions including relative levels of market interest rates, loan prepayments and deposit decay, and should not be relied upon as indicative of actual results. The following table reflects management’s expectations of the changes in EVE and net interest income for an interest rate decrease of 100 basis points and increase of 200 basis points.

	EVE (1)					Net Interest Income (2)
Change in Interest Rates (basis points)	Estimated EVE		Estimated Increase (Decrease)			Estimated Net Interest Income		Estimated Increase (Decrease)
			Amount	Percent				Amount	Percent
	(Dollars in thousands)
+ 200bp	$	4,128,045	(158,188)	(3.7)	%	$	744,781	(19,888)	(2.6)	%
0bp	$	4,286,233	—	—		$	764,669	—	—
-100bp	$	4,062,237	(223,996)	(5.2)	%	$	765,966	1,297	0.2	%

(1)EVE is the discounted present value of expected cash flows from assets, liabilities and off-balance sheet contracts.

(2)Assumes a gradual change in interest rates over a one year period at all maturities.

    The table above indicates that at June 30, 2021, in the event of a 200 basis point increase in interest rates, we would be expected to experience a 3.7% decrease in EVE and a $19.9 million, or 2.6%, decrease in net interest income. In the event of a 100 basis point decrease in interest rates, we would be expected to experience a 5.2% decrease in EVE and a $1.3 million, or 0.2%, increase in net interest income. This data does not reflect any future actions we may take in response to changes in interest rates, such as changing the mix in or growth of our assets and liabilities, which could change the results of the EVE and net interest income calculations.

    As mentioned above, we use an internally developed asset liability model to compute our quarterly interest rate risk reports. Certain shortcomings are inherent in any methodology used to calculate interest rate risk. Modeling EVE and net interest income sensitivity requires certain assumptions that may or may not reflect the manner in which actual yields and market values respond to changes in market interest rates. The EVE and net interest income results presented above assume no balance sheet growth and that generally the composition of our interest-rate sensitive assets and liabilities existing at the

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beginning of the analysis remains constant over the period being measured and, accordingly, the data does not reflect any actions we may take in response to changes in interest rates. The EVE and net interest income results presented in the table above provide an indication of our sensitivity to interest rate changes at a point in time.

ITEM 4. CONTROLS AND PROCEDURES

    Under the supervision and with the participation of our management, including our Principal Executive Officer and Principal Financial Officer, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based upon that evaluation, the Principal Executive Officer and Principal Financial Officer concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective.

    There were no changes in our internal control over financial reporting that occurred during the quarter ended June 30, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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Part II Other Information

ITEM 1. LEGAL PROCEEDINGS

    The Company, the Bank and its subsidiaries are subject to various legal actions arising in the normal course of business. In the opinion of management, the resolution of these legal actions is not expected to have a material adverse effect on the Company’s financial condition or results of operations.

ITEM 1A. RISK FACTORS

    In addition to the other information contained in this Quarterly Report on Form 10-Q, the following risk factors relating to the Company’s proposed merger (“Merger”) with Citizens Financial Group, Inc. (“Citizens”) represent a material update and addition to the risk factors previously disclosed in our Annual Report on Form 10- K for the fiscal year ended December 31, 2020, as filed with the Securities and Exchange Commission, as updated by our Quarterly Reports on Form 10-Q. To the extent that any of the information contained in this Quarterly Report on Form 10-Q constitutes forward-looking statements, the risk factors set forth below also are cautionary statements identifying important factors that could cause our actual results to differ materially from those expressed in any forward-looking statements made by or on behalf of us.

There is no assurance when or even if the Merger will be completed.

Completion of the Merger is subject to satisfaction or waiver of a number of conditions. There can be no assurance that the Company and Citizens will be able to satisfy the closing conditions or that closing conditions beyond their control will be satisfied or waived. Additionally, the Company and/or Citizens can terminate the merger agreement under specified circumstances. Moreover, the Company could face stockholder litigation relating to the Merger, which could prevent or delay the consummation of the Merger.

Regulatory approvals may not be received, may take longer than expected, or may impose conditions that are not presently anticipated or that could have an adverse effect on the combined company following the Merger.

Before the Merger may be completed, Citizens and the Company must obtain approvals (or waivers) from the Federal Reserve and the Office of the Comptroller of the Currency. Other approvals, waivers or consents from regulators may also be required. In determining whether to grant these approvals the regulators consider a variety of factors, including the regulatory standing of each party. An adverse development in either party’s regulatory standing or other factors could result in an inability to obtain approval or delay their receipt. These regulators may impose conditions on the completion of the Merger or require changes to the terms of the Merger. Such conditions or changes could have the effect of delaying or preventing completion of the Merger or imposing additional costs on or limiting the revenues of the combined company following the Merger, any of which might have an adverse effect on the combined company following the Merger.

Failure to complete the Merger could negatively impact the Company’s stock price, business and financial results.

If the Merger is not completed, the ongoing business of the Company may be adversely affected and the Company may be subject to a number of risks, including the following:

•the Company will be required to pay certain costs relating to the Merger, whether or not the Merger is completed, such as legal, accounting, financial advisor, proxy solicitation and printing fees;

•under the Merger agreement, the Company is subject to certain restrictions on the conduct of its business before completing the Merger, which may adversely affect its ability to execute certain of its business strategies if the Merger is terminated; and

•matters relating to the Merger may require substantial commitments of time and resources by the Company’s management, which could otherwise have been devoted to other opportunities that may have been beneficial to the Company as an independent company.

In addition, if the Merger is not completed, the Company may experience negative reactions from the financial markets and from its customers and employees. The Company could be subject to litigation related to any failure to complete the Merger, or to proceedings commenced by Citizens seeking damages or to compel the Company to perform its obligations under the merger agreement. These factors and similar risks could have an adverse effect on the Company’s results of operation, business and stock price.

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Combining the Company and Citizens may be more difficult, costly or time consuming than expected and the Company and Citizens may fail to realize the anticipated benefits of the Merger.

The success of the Merger will depend, in part, on the ability to realize the anticipated cost savings from combining the businesses of the Company and Citizens. To realize the anticipated benefits and cost savings from the Merger, the Company and Citizens must successfully integrate and combine their businesses in a manner that permits those cost savings to be realized. If the Company and Citizens are not able to successfully achieve these objectives, the anticipated benefits of the Merger may not be realized fully or at all or may take longer to realize than expected. In addition, the actual cost savings and anticipated benefits of the Merger could be less than anticipated, and integration may result in additional unforeseen expenses.

The Company and Citizens have operated and, until the completion of the Merger, must continue to operate, independently. It is possible that the integration process could result in the loss of key employees, the disruption of each company’s ongoing businesses or inconsistencies in standards, controls, procedures and policies that adversely affect the companies’ ability to maintain relationships with clients, customers, depositors and employees or to achieve the anticipated benefits and cost savings of the Merger. Integration efforts between the two companies may also divert management attention and resources. These integration matters could have an adverse effect on the Company during this transition period and for an undetermined period after completion of the Merger on the combined company.

The Company’s shareholders will have significantly reduced ownership and voting interests after the Merger and will exercise less influence over management of the combined organization.

The Company’s shareholders currently have the right to vote in the election of the Company’s board of directors and on various other matters affecting the Company. Upon the completion of the Merger, the Company’s shareholders will become shareholders of Citizens with ownership of approximately 14% of the combined company. Therefore, the Company’s shareholders will have significantly reduced ownership and voting interests after the Merger.

The Company will be subject to business uncertainties and contractual restrictions while the Merger is pending.

Uncertainty about the effect of the Merger on employees and customers may have an adverse effect on the Company. These uncertainties may impair the Company’s ability to attract, retain and motivate key personnel until the Merger is completed, and could cause customers and others who deal with the Company to seek to change existing business relationships with the Company. Employee retention and recruitment may be particularly challenging prior to the effective time of the Merger, as employees and prospective employees may experience uncertainty about their future roles with the combined company.

The pursuit of the Merger and the preparation for the integration may place a significant burden on management and internal resources. Any significant diversion of management attention away from ongoing business and any difficulties encountered in the transition and integration process could affect our financial results. In addition, the Merger Agreement requires that the Company operate in the ordinary course of business and restricts the Company from taking certain actions prior to the effective time of the Merger or termination of the Merger Agreement without Citizen’s consent. These restrictions may prevent the Company from pursuing attractive business opportunities that may arise prior to the completion of the Merger.

The combined company may be unable to retain the Company’s or Citizens’ personnel successfully after the Merger is completed.

The success of the Merger will depend in part on the combined company’s ability to retain the talents and dedication of key employees currently employed by the Company and Citizens. It is possible that these employees may decide not to remain with the Company or Citizens, as applicable, while the Merger is pending or with the combined company after the Merger is consummated. If the Company and Citizens are unable to retain key employees, including management, who are critical to the successful integration and future operations of the companies, the Company could face disruptions in their operations, loss of existing customers, loss of key information, expertise or know-how and unanticipated additional recruitment costs. In addition, if key employees terminate their employment, the combined company’s business activities may be adversely affected and management’s attention may be diverted from successfully integrating the Company and Citizens to hiring suitable replacements, all of which may cause the combined company’s business to suffer. In addition, the Company and Citizens may not be able to locate or retain suitable replacements for any key employees who leave either company.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) Not applicable.

(b) Not applicable.

(c) The following table reports information regarding repurchases of our common stock during the quarter ended June 30, 2021 and the stock repurchase plans approved by our Board of Directors.

Period	Total Number of Shares Purchased (1)(2)	Average Price paid Per Share		As part of Publicly Announced Plans or Programs	Yet to be Purchased Under the Plans or Programs (1)
April 1, 2021 through April 30, 2021	34,618	$	14.63	—	12,000,202
May 1, 2021 through May 31, 2021	990	14.64		—	12,000,202
June 1, 2021 through June 30, 2021	264,230	14.47		—	12,000,202
Total	299,838	$	14.49	—	12,000,202

(1) On October 25, 2018, the Company announced its fourth share repurchase program, which authorized the purchase of 10% of its publicly-held outstanding shares of common stock, or approximately 28,886,780 shares. The plan commenced upon the completion of the third repurchase plan on December 10, 2018. This program has no expiration date and has 12,000,202 shares yet to be repurchased as of June 30, 2021.

(2) 299,838 shares were withheld to cover income taxes related to restricted stock vesting under our 2015 Equity Incentive Plan. Shares withheld to pay income taxes are repurchased pursuant to the terms of the 2015 Equity Incentive Plan and not under our share repurchase program.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

Not applicable.

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ITEM 6. EXHIBITS

The following exhibits are either filed as part of this report or are incorporated herein by reference:

2.1	Agreement and Plan of Merger by and among Investors Bancorp, Inc. and Gold Coast Bancorp, Inc. dated as of July 24, 2019. (1)
2.2	Agreement and Plan of Merger by and between Citizens Financial Group, Inc. and Investors Bancorp, Inc. dated as of July 28, 2021. (2)
3.1	Certificate of Incorporation of Investors Bancorp, Inc. (3)
3.2	Bylaws of Investors Bancorp, Inc. (3)
31.1	Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Principal Financial and Accounting Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification of Principal Executive Officer and Principal Financial and Accounting Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Labels Linkbase Document
101.PRE	Inline XBRL Taxonomy Presentation Linkbase Document
104	Inline XBRL Cover Page Interactive Data File

(1)	Incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of Investors Bancorp, Inc. (Commission File no. 001-36441), originally filed with the Securities and Exchange Commission on July 30, 2019.
(2)	Incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of Investors Bancorp, Inc. (Commission File no. 001-36441), originally filed with the Securities and Exchange Commission on July 30, 2021.
(3)	Incorporated by reference to the Registration Statement on Form S-1 of Investors Bancorp, Inc. (Commission File no. 333-192966), originally filed with the Securities and Exchange Commission on December 20, 2013.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			INVESTORS BANCORP, INC.
Date:	August 6, 2021	By:	/s/  Kevin Cummings
			Kevin Cummings Chief Executive Officer (Principal Executive Officer)
		By:	/s/  Sean Burke
			Sean Burke Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

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EX-31.1

Exhibit 31.1

Certification of Principal Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Kevin Cummings, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Investors Bancorp, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated:	August 6, 2021	/s/ Kevin Cummings
		Kevin Cummings
		Chief Executive Officer
		(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification of Principal Financial and Accounting Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Sean Burke, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Investors Bancorp, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated:	August 6, 2021	/s/ Sean Burke
		Sean Burke
		Executive Vice President and Chief Financial Officer
		(Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

Certification of Principal Executive Officer and Principal Financial and Accounting Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Kevin Cummings, Principal Executive Officer of Investors Bancorp, Inc. (the “Company”) and Sean Burke, Executive Vice President and Principal Financial and Accounting Officer of the Company, each certify in his capacity as an officer of the Company that he has reviewed the quarterly report on Form 10-Q for the quarter ended June 30, 2021 (the “Report”) and that to the best of his knowledge:

1.the Report fully complies with the requirements of Sections 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	August 6, 2021	/s/ Kevin Cummings
		Kevin Cummings
		Chief Executive Officer
		(Principal Executive Officer)
Dated:	August 6, 2021	/s/ Sean Burke
		Sean Burke
		Executive Vice President and Chief Financial Officer
		(Principal Financial and Accounting Officer)

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

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	Jun. 30, 2021	Jul. 30, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-36441
Entity Registrant Name	Investors Bancorp , Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4702118
Entity Address, Street Address	101 JFK Parkway,
Entity Address, City	Short Hills,
Entity Address, State	NJ
Entity Address, Postal Zip Code	07078
City Area Code	973
Local Phone Number	924-5100
Title of each class	Common
Trading Symbol(s)	ISBC
Name of each exchange on which registered	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		247,615,750
Entity Central Index Key	0001594012
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false

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Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Cash and cash equivalents	$ 770,396	$ 170,432
Equity securities	9,698	36,000
Debt securities available-for-sale, at estimated fair value	2,544,415	2,758,437
Debt securities held-to-maturity, net (estimated fair value of $1,253,521 and $1,320,872 at June 30, 2021 and December 31, 2020, respectively)	1,178,812	1,247,853
Loans receivable, net	21,082,521	20,580,451
Loans held-for-sale	0	30,357
Federal Home Loan Bank stock	199,826	159,829
Accrued interest receivable	78,858	79,705
Other real estate owned and other repossessed assets	5,914	7,115
Office properties and equipment, net	134,579	139,663
Operating lease right-of-use assets	200,425	199,981
Net deferred tax asset	115,946	116,805
Bank owned life insurance	226,314	223,714
Goodwill and intangible assets	109,222	109,633
Other assets	145,185	163,184
Total assets	26,802,111	26,023,159
Liabilities:
Deposits	19,438,966	19,525,419
Borrowed funds	4,033,864	3,295,790
Advance payments by borrowers for taxes and insurance	130,225	115,729
Operating lease liabilities	213,050	212,559
Other liabilities	171,979	163,659
Total liabilities	23,988,084	23,313,156
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value, 100,000,000 authorized shares; none issued	0	0
Common stock, $0.01 par value, 1,000,000,000 shares authorized; 361,869,872 issued at June 30, 2021 and December 31, 2020; 247,601,303 and 247,929,216 outstanding at June 30, 2021 and December 31, 2020, respectively	3,619	3,619
Additional paid-in capital	2,864,559	2,858,663
Retained earnings	1,422,029	1,339,003
Treasury stock, at cost; 114,268,569 and 113,940,656 shares at June 30, 2021 and December 31, 2020, respectively	(1,380,042)	(1,375,996)
Unallocated common stock held by the employee stock ownership plan	(73,772)	(75,270)
Accumulated other comprehensive loss	(22,366)	(40,016)
Total stockholders’ equity	2,814,027	2,710,003
Total liabilities and stockholders’ equity	$ 26,802,111	$ 26,023,159

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Debt securities held-to-maturity, estimated fair value	$ 1,253,521	$ 1,320,872
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	100,000,000	100,000,000
Preferred stock, shares issued (shares)	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (shares)	361,869,872	361,869,872
Common stock, shares outstanding (shares)	247,601,303	247,929,216
Treasury stock (shares)	114,268,569	113,940,656

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Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest and dividend income:
Loans receivable and loans held-for-sale	$ 211,523	$ 217,733	$ 410,273	$ 442,262
Securities:
Equity	63	32	329	65
Government-sponsored enterprise obligations	573	310	1,099	616
Mortgage-backed securities	14,215	20,572	29,417	43,156
Municipal bonds and other debt	3,456	3,276	6,995	6,651
Interest-bearing deposits	38	294	99	1,134
Federal Home Loan Bank stock	1,983	3,997	4,183	8,429
Total interest and dividend income	231,851	246,214	452,395	502,313
Interest expense:
Deposits	15,993	38,991	37,185	92,170
Borrowed funds	21,148	25,236	39,765	54,873
Total interest expense	37,141	64,227	76,950	147,043
Net interest income	194,710	181,987	375,445	355,270
Provision for credit losses	(9,690)	33,278	(12,662)	64,504
Net interest income after provision for credit losses	204,400	148,709	388,107	290,766
Non-interest income
Fees and service charges	4,893	1,376	10,741	7,402
Income on bank owned life insurance	1,552	1,596	3,504	2,992
Gain on loans, net	1,288	3,557	5,121	5,403
Gain on securities, net	283	55	934	257
(Loss) gain on sale of other real estate owned, net	(25)	(89)	52	651
Other income	5,083	3,645	12,725	8,095
Total non-interest income	13,074	10,140	33,077	24,800
Non-interest expense
Compensation and fringe benefits	61,385	55,791	123,812	116,183
Advertising and promotional expense	2,397	2,199	4,626	4,562
Office occupancy and equipment expense	17,075	16,470	35,148	32,421
Federal deposit insurance premiums	3,200	3,400	6,600	7,801
General and administrative	545	593	924	1,127
Professional fees	5,042	4,306	7,971	8,289
Data processing and communication	10,192	9,908	19,328	17,700
Other operating expenses	8,602	7,353	14,390	14,495
Total non-interest expenses	108,438	100,020	212,799	202,578
Income before income tax expense	109,036	58,829	208,385	112,988
Income tax expense	29,229	16,218	56,303	30,865
Net income	$ 79,807	$ 42,611	$ 152,082	$ 82,123
Basic earnings per share (usd per share)	$ 0.34	$ 0.18	$ 0.65	$ 0.35
Diluted earnings per share (usd per share)	$ 0.34	$ 0.18	$ 0.64	$ 0.35
Weighted average shares outstanding
Basic (shares)	235,045,023	236,248,296	234,854,494	234,755,591
Diluted (shares)	236,497,536	236,382,103	235,936,179	234,927,420

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 79,807	$ 42,611	$ 152,082	$ 82,123
Other comprehensive (loss) income, net of tax:
Change in funded status of retirement obligations	122	299	243	319
Unrealized (losses) gains on debt securities available-for-sale	(3,708)	(997)	(22,028)	36,631
Accretion of loss on debt securities reclassified to held-to-maturity	30	56	61	112
Reclassification adjustment for security gains included in net income	0	0	(299)	0
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	193	277	372	457
Net (losses) gains on derivatives	(2,496)	(7,485)	39,301	(78,133)
Total other comprehensive (loss) income	(5,859)	(7,850)	17,650	(40,614)
Total comprehensive income	$ 73,948	$ 34,761	$ 169,732	$ 41,509

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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Adjustment	Adjusted Balance	Common stock	Common stock Adjusted Balance	Additional paid-in capital	Additional paid-in capital Adjusted Balance	Retained earnings	Retained earnings Adjustment	Retained earnings Adjusted Balance	Treasury stock	Treasury stock Adjusted Balance	Unallocated common stock held by ESOP	Unallocated common stock held by ESOP Adjusted Balance	Accumulated other comprehensive loss	Accumulated other comprehensive loss Adjusted Balance
Balance, beginning of period at Dec. 31, 2019	$ 2,621,950	$ (8,491)	$ 2,613,459	$ 3,591	$ 3,591	$ 2,822,364	$ 2,822,364	$ 1,245,793	$ (8,491)	$ 1,237,302	$ (1,352,910)	$ (1,352,910)	$ (78,266)	$ (78,266)	$ (18,622)	$ (18,622)
Increase (Decrease) in Stockholders' Equity
Net income	82,123							82,123
Other comprehensive income (loss), net of tax	(40,614)														(40,614)
Common stock issued to finance acquisition	20,881			28		20,853
Purchase of treasury stock	(3,361)										(3,361)
Treasury stock allocated to restricted stock plan	0					(736)		(103)			839
Compensation cost for stock options and restricted stock	7,850					7,850
Restricted stock forfeitures	0					197		(3)			(194)
Cash dividend paid	(59,714)							(59,714)
ESOP shares allocated or committed to be released	2,276					778							1,498
Balance, end of period at Jun. 30, 2020	2,622,900			3,619		2,851,306		1,259,605			(1,355,626)		(76,768)		(59,236)
Balance, beginning of period at Mar. 31, 2020	2,594,758			3,591		2,826,288		1,247,028			(1,353,246)		(77,517)		(51,386)
Increase (Decrease) in Stockholders' Equity
Net income	42,611							42,611
Other comprehensive income (loss), net of tax	(7,850)														(7,850)
Common stock issued to finance acquisition	20,881			28		20,853
Purchase of treasury stock	(2,429)										(2,429)
Treasury stock allocated to restricted stock plan	0					(36)		(13)			49
Compensation cost for stock options and restricted stock	3,954					3,954
Cash dividend paid	(30,021)							(30,021)
ESOP shares allocated or committed to be released	996					247							749
Balance, end of period at Jun. 30, 2020	2,622,900			3,619		2,851,306		1,259,605			(1,355,626)		(76,768)		(59,236)
Balance, beginning of period at Dec. 31, 2020	2,710,003			3,619		2,858,663		1,339,003			(1,375,996)		(75,270)		(40,016)
Increase (Decrease) in Stockholders' Equity
Net income	152,082							152,082
Other comprehensive income (loss), net of tax	17,650														17,650
Purchase of treasury stock	(11,958)										(11,958)
Treasury stock allocated to restricted stock plan	0					(3,149)		185			2,964
Compensation cost for stock options and restricted stock	7,167					7,167
Exercise of stock options	5,062					(133)					5,195
Restricted stock forfeitures	0					241		6			(247)
Cash dividend paid	(69,247)							(69,247)
ESOP shares allocated or committed to be released	3,268					1,770							1,498
Balance, end of period at Jun. 30, 2021	2,814,027			3,619		2,864,559		1,422,029			(1,380,042)		(73,772)		(22,366)
Balance, beginning of period at Mar. 31, 2021	2,770,552			3,619		2,860,045		1,376,774			(1,378,858)		(74,521)		(16,507)
Increase (Decrease) in Stockholders' Equity
Net income	79,807							79,807
Other comprehensive income (loss), net of tax	(5,859)														(5,859)
Purchase of treasury stock	(4,343)										(4,343)
Treasury stock allocated to restricted stock plan	0					(335)		49			286
Compensation cost for stock options and restricted stock	3,707					3,707
Exercise of stock options	3,027					8					3,019
Restricted stock forfeitures	0					134		12			(146)
Cash dividend paid	(34,613)							(34,613)
ESOP shares allocated or committed to be released	1,749					1,000							749
Balance, end of period at Jun. 30, 2021	$ 2,814,027			$ 3,619		$ 2,864,559		$ 1,422,029			$ (1,380,042)		$ (73,772)		$ (22,366)

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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Purchase of treasury stock (shares)	299,838	298,977	964,114	383,366
Treasury stock allocated to restricted stock plan (shares)	22,823	4,000	239,166	68,923
Restricted stock forfeitures (shares)	12,000	0.12	20,567	15,973
Cash dividend paid (usd per share)	$ 0.14		$ 0.28	$ 0.24

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income	$ 152,082	$ 82,123
Adjustments to reconcile net income to net cash provided by operating activities:
ESOP and stock-based compensation expense	10,435	10,126
Amortization of premiums and accretion of discounts on securities, net	4,788	5,060
Amortization of premiums and accretion of fees and costs on loans, net	2,445	2,885
Amortization of other intangible assets	538	680
Amortization of debt modification costs and premium on borrowings	1,074	1,132
Provision for credit losses	(12,662)	64,504
Loss from extinguishment of debt	0	326
Depreciation and amortization of office properties and equipment	10,797	10,671
Gain on securities, net	(934)	(257)
Mortgage loans originated for sale	(143,238)	(280,236)
Proceeds from mortgage loan sales	178,378	275,328
Gain on sales of mortgage loans, net	(4,783)	(5,062)
Gain on sale of other real estate owned	(52)	(651)
Income on bank owned life insurance	(3,504)	(2,992)
Amortization of lease right-of-use assets	12,764	9,841
Decrease (increase) in accrued interest receivable	847	(1,013)
Deferred tax benefit	(7,777)	(16,903)
Decrease (increase) in other assets	59,332	(71,498)
Increase (decrease) in other liabilities	6,007	(74,517)
Net cash provided by operating activities	266,537	9,547
Cash flows from investing activities:
Purchases of loans receivable	(60,413)	(60,000)
Net (originations) payoffs of loans receivable	(470,849)	819,559
Proceeds from disposition of loans receivable	43,795	26,755
Gain on disposition of loans receivable	(338)	(341)
Gain on disposition of leased equipment	(1,297)	(1,824)
Net proceeds from sale of other real estate owned	1,253	5,617
Proceeds from sales of equity securities	32,872	0
Proceeds from principal repayments/calls/maturities of debt securities available for sale	537,575	411,671
Proceeds from sales of debt securities available for sale	8,171	0
Proceeds from principal repayments/calls/maturities of debt securities held to maturity	185,874	126,260
Purchases of equity securities	(6,035)	(45)
Purchases of debt securities available for sale	(364,656)	(507,598)
Purchases of debt securities held-to-maturity	(115,825)	(170,348)
Proceeds from redemptions of Federal Home Loan Bank stock	55,787	98,053
Purchases of Federal Home Loan Bank stock	(95,784)	(60,042)
Purchases of office properties and equipment	(5,713)	(6,181)
Death benefit proceeds from bank owned life insurance, net	904	0
Cash received, net of cash consideration paid for acquisitions	0	7,274
Net cash (used in) provided by investing activities	(254,679)	688,810
Cash flows from financing activities:
Net (decrease) increase in deposits	(86,453)	1,137,083
Repayments of principal under finance leases	(794)	(784)
Net proceeds (repayments) of borrowed funds	737,000	(1,211,404)
Net increase in advance payments by borrowers for taxes and insurance	14,496	142
Dividends paid	(69,247)	(59,714)
Exercise of stock options	5,062	0
Purchase of treasury stock	(11,958)	(3,361)
Net cash provided by (used in) financing activities	588,106	(138,038)
Net increase in cash and cash equivalents	599,964	560,319
Cash and cash equivalents at beginning of period	170,432	174,915
Cash and cash equivalents at end of period	770,396	735,234
Non-cash investing activities:
Real estate acquired through foreclosure and other assets repossessed	0	750
Cash paid during the year for:
Interest	79,208	154,370
Income taxes	48,025	6,218
Significant non-cash transactions:
Right-of-use assets obtained in exchange for new lease liabilities	13,234	4,140
Non-cash assets acquired:
Debt securities available-for-sale	0	51,524
Debt securities held to maturity	0	8,402
Loans receivable, net	0	443,499
Office properties and equipment, net	0	485
Accrued interest receivable	0	1,283
Right of use assets - leases	0	3,697
Deferred tax asset	0	3,915
Intangible assets, net	0	14,491
Other assets	0	705
Total non-cash assets acquired	0	528,001
Liabilities assumed:
Deposits	0	489,881
Borrowed funds	0	14,851
Advance payment by borrowers	0	3,611
Other liabilities	0	6,051
Total liabilities assumed	0	514,394
Net non-cash assets acquired	0	13,607
Gold Coast Bancorp, Inc.
Liabilities assumed:
Common stock issued for acquisitions	$ 0	$ 20,881

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Summary of Significant Accounting Principles

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Principles

Summary of Significant Accounting Principles

Basis of Presentation

    The consolidated financial statements are comprised of the accounts of Investors Bancorp, Inc. and its wholly owned subsidiary, Investors Bank (the “Bank”) and the Bank’s wholly-owned subsidiaries (collectively, the “Company”). All significant intercompany transactions have been eliminated in consolidation. In the opinion of management, all the adjustments (consisting of normal and recurring adjustments) necessary for the fair presentation of the consolidated financial condition and the consolidated results of operations for the unaudited periods presented have been included. The results of operations and other data presented for the three and six months ended June 30, 2021 are not necessarily indicative of the results of operations that may be expected for subsequent periods or the full year results.

    Certain information and note disclosures usually included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for the preparation of the Form 10-Q. The consolidated financial statements presented should be read in conjunction with the Company’s audited consolidated financial statements and notes to the audited consolidated financial statements included in the Company’s December 31, 2020 Annual Report on Form 10-K. Certain reclassifications have been made in the consolidated financial statements to conform with current year classifications.

The accounting and reporting policies of the Company conform to U.S. GAAP and to general practice within the financial services industry. A discussion of these policies can be found in Note 1, Summary of Significant Accounting Policies, included in the Company’s 2020 Annual Report on Form 10-K. There have been no changes to the Company’s significant accounting policies since December 31, 2020.

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Stock Transactions

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Stock Transactions

Stock Transactions

Stock Repurchase Program

    On October 25, 2018, the Company announced its fourth share repurchase program, which authorized the purchase of 10% of its publicly-held outstanding shares of common stock, or 28,886,780 shares. The fourth program commenced immediately upon completion of the third program on December 10, 2018. This program has no expiration date and has 12,000,202 shares yet to be repurchased as of June 30, 2021.

    During the six months ended June 30, 2021, the Company purchased approximately 1.0 million shares at a cost of $12.0 million, or $12.40 per share. During the six months ended June 30, 2021, shares repurchased include 339,114 shares purchased in connection with the vesting of shares of restricted stock under our 2015 Equity Incentive Plan and the withholding of shares to pay income taxes. These shares are repurchased pursuant to the terms of the 2015 Equity Incentive Plan and therefore are not part of the Company’s repurchase program.

Stockholders’ Equity The changes in the components of stockholders’ equity for the three months ended June 30, 2021 and 2020 are as follows:

	Common stock		Additional paid-in capital	Retained earnings	Treasury stock	Unallocated common stock held by ESOP	Accumulated other comprehensive loss	Total stockholders’ equity
	(In thousands)
Balance at March 31, 2020	$	3,591	2,826,288	1,247,028	(1,353,246)	(77,517)	(51,386)	2,594,758
Net income	—		—	42,611	—	—	—	42,611
Other comprehensive loss, net of tax	—		—	—	—	—	(7,850)	(7,850)
Common stock issued to finance acquisition	28		20,853	—	—	—	—	20,881
Purchase of treasury stock (298,977 shares)	—		—	—	(2,429)	—	—	(2,429)
Treasury stock allocated to restricted stock plan (4,000 shares)	—		(36)	(13)	49	—	—	—
Compensation cost for stock options and restricted stock	—		3,954	—	—	—	—	3,954
Cash dividend paid ($0.12 per common share)	—		—	(30,021)	—	—	—	(30,021)
ESOP shares allocated or committed to be released	—		247	—	—	749	—	996
Balance at June 30, 2020	$	3,619	2,851,306	1,259,605	(1,355,626)	(76,768)	(59,236)	2,622,900
Balance at March 31, 2021	$	3,619	2,860,045	1,376,774	(1,378,858)	(74,521)	(16,507)	2,770,552
Net income	—		—	79,807	—	—	—	79,807
Other comprehensive loss, net of tax	—		—	—	—	—	(5,859)	(5,859)
Purchase of treasury stock (299,838 shares)	—		—	—	(4,343)	—	—	(4,343)
Treasury stock allocated to restricted stock plan (22,823 shares)	—		(335)	49	286	—	—	—
Compensation cost for stock options and restricted stock	—		3,707	—	—	—	—	3,707
Exercise of stock options	—		8	—	3,019	—	—	3,027
Restricted stock forfeitures (12,000 shares)	—		134	12	(146)	—	—	—
Cash dividend paid ($0.14 per common share)	—		—	(34,613)	—	—	—	(34,613)
ESOP shares allocated or committed to be released	—		1,000	—	—	749	—	1,749
Balance at June 30, 2021	$	3,619	2,864,559	1,422,029	(1,380,042)	(73,772)	(22,366)	2,814,027

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Business Combinations

6 Months Ended

Jun. 30, 2021

Business Combination and Asset Acquisition [Abstract]

Business Combinations

Business Combinations

Berkshire Bank Branch Acquisition

On December 2, 2020, Investors Bancorp announced the signing of a definitive purchase and assumption agreement under which Investors Bancorp’s wholly-owned subsidiary, Investors Bank, will acquire the eight New Jersey and eastern Pennsylvania branches of Berkshire Bank, the wholly-owned subsidiary of Berkshire Hills Bancorp, including the assumption and acquisition of approximately $633 million of deposits and $253 million of consumer and commercial loans. Regulatory approval for the transaction was received in July 2021. The transaction is not reflected in the Consolidated Financial Statements as of June 30, 2021. Refer to Note 19, Subsequent Events, for further details.

Gold Coast Bancorp    

    As of the close of business on April 3, 2020, the Company completed its acquisition of Gold Coast Bancorp (“Gold Coast”) pursuant to the Agreement and Plan of Merger, dated as of July 24, 2019 by and between the Company and Gold Coast. As a result of the completion of the acquisition, the Company issued approximately 2.8 million shares to the former stockholders of Gold Coast and paid approximately $31.0 million in cash to the former stockholders of Gold Coast. Under the terms of the merger agreement, 50% of the common shares of Gold Coast were converted into Investors Bancorp common stock and the remaining 50% was exchanged for cash. For each share of Gold Coast Bancorp common stock, Gold Coast shareholders were given an option to receive either (i) 1.422 shares of Investors Bancorp common stock, $0.01 par value per

share, (ii) a cash payment of $15.75, or (iii) a combination of Investors Bancorp common stock and cash. The foregoing was subject to proration to ensure that, in the aggregate, 50% of Gold Coast’s shares would be converted into Investors Bancorp common stock.

    The acquisition was accounted for under the acquisition method of accounting as prescribed by Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 805 “Business Combinations”, as amended. Under this method of accounting, the purchase price has been allocated to the respective assets acquired based on their estimated fair values, net of applicable income tax effects. The excess cost over fair value of assets acquired, or $12.0 million, has been recorded as goodwill.

    The acquired portfolio was fair valued on the date of acquisition based on guidance from ASC 820-10 which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The valuation methods utilized took into consideration adjustments for interest rate risk, funding cost, servicing cost, residual risk, credit and liquidity risk. The accounting for the acquisition of Gold Coast is complete and is reflected in our Consolidated Financial Statements.

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the date of acquisition for Gold Coast, net of cash consideration paid:

	At April 3, 2020
	(In millions)
Cash and cash equivalents	$	7.3
Debt securities available-for-sale	51.5
Debt securities held to maturity	8.4
Loans receivable, net	443.5
Accrued interest receivable	1.3
Right-of-use assets	3.7
Net deferred tax asset	3.9
Intangible assets	14.5
Other assets	1.2
Total assets acquired	535.3
Deposits	489.9
Borrowed funds	14.9
Other liabilities	9.7
Total liabilities assumed	514.5
Net assets acquired	$	20.8

    Financial assets acquired in a business combination after January 1, 2020 are recorded in accordance with ASC Topic 326, after which acquired assets are separated into two types. PCD assets are acquired assets that, as of the acquisition date, have experienced a more-than-insignificant deterioration in credit quality since origination. Non-PCD assets are acquired assets that have experienced no or insignificant deterioration in credit quality since origination. To distinguish between the two types of acquired assets, the Company evaluates risk characteristics that have been determined to be indicators of deteriorated credit quality. In the case of loans, the determining criteria may involve general characteristics, such as loan payment history or changes in creditworthiness since the loan was originated, while others are relevant to recent economic conditions, such as borrowers in industries impacted by the pandemic.

In its acquisition of Gold Coast, the Company has purchased loans which have been determined to be PCD. The carrying amount of those loans was as follows:

	At April 3, 2020
	(In millions)
Purchase price of loans at acquisition	$	244.7
Allowance for credit losses at acquisition	4.2
Non-credit discount at acquisition	2.6
Par value of acquired loans at acquisition	$	251.5

Fair Value Measurement of Assets Acquired and Liabilities Assumed

    Described below are the methods used to determine the fair values of the significant assets acquired and liabilities assumed in the Gold Coast acquisition based on guidance from ASC 820-10 which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date.

Securities. The securities acquired are bought and sold in active markets. The estimated fair values of securities were calculated using external third party broker opinions of the market values. Due to the instability of the market at the time of acquisition as well as the odd lot position sizes of the securities, the Company reviewed the data and assumptions used in pricing the securities by third-parties and made qualitative adjustments to reflect the then current market conditions and the characteristics of each position.

Loans. The estimated fair values of the loan portfolio generally consider adjustments for interest rate risk, required funding costs, servicing costs, prepayments, credit and liquidity. Level 3 inputs were utilized to determine the fair value of the acquired loan portfolio and included the use of present value techniques employing cash flow estimates and incorporated assumptions that market participants would use in estimating fair values. In instances where reliable market information was not available, the Company used its own assumptions in an effort to determine fair value. The primary approach to determining the fair value of the loan portfolio was a discounted cash flow methodology that considered factors including the type of loan, underlying collateral, classification status or grade, interest rate structure (fixed or variable interest rate), and remaining term. For the non-credit component, loans were grouped together according to similar characteristics when applying the various valuations techniques. For the credit component, loans were also grouped based on whether they had more than insignificant deterioration in credit since origination (purchase credit deteriorated “PCD” as defined by ASC 326-20). The expected life of loan loss estimates were calculated based on an annual loss rate developed by using the historical annual average charge-off percentages for New York institutions as a proxy for how a market participant acquirer would value the portfolio. Additionally, a qualitative credit adjustment was applied to the historical annual loss rates, due to COVID-19 and the uncertainty of future losses.

Deposits / Core Deposit Intangible. The core deposit intangible represents the value assigned to the stable and below market rate funding sources within the acquired deposit base; typically demand deposits, interest checking, money market and savings accounts. The core deposit intangible value represents the value of the relationships with deposit customers as a below market rate funding source. The fair value was based on a discounted cash flow methodology that gave appropriate consideration to expected deposit attrition rates, net maintenance costs of the deposit base, projected interest costs and alternative funding costs. Certificates of deposit (time deposits) are not considered to be core deposits as they typically are less stable and generally do not have an “all-in” favorable funding advantage to alternative funding costs. The fair value of certificates of deposit represents the present value of the certificates’ expected contractual payments discounted by market rates for similar certificates and is determined utilizing Level 2 inputs.

Borrowed Funds. A discounted cash flow approach was used to determine the fair value of the debt acquired. The fair value of the liability represents the present value of the expected payments discounted using a risk adjusted discount rate. The discount rate was developed based on comparable rated securities, as that backed by companies with similar credit ratings as the Company.

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Earnings Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The following is a summary of our earnings per share calculations and reconciliation of basic to diluted earnings per share.

	For the Three Months Ended June 30,
	2021		2020
	(Dollars in thousands, except per share data)
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$	79,807	$	42,611
Shares
Weighted-average common shares outstanding - basic	235,045,023		236,248,296
Effect of dilutive common stock equivalents (1)	1,452,513		133,807
Weighted-average common shares outstanding - diluted	236,497,536		236,382,103
Earnings per common share
Basic	$	0.34	$	0.18
Diluted	$	0.34	$	0.18

(1) For the three months ended June 30, 2021 and 2020, there were 12,437 and 7,442,906 equity awards, respectively, that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented.

	For the Six Months Ended June 30,
	2021		2020
	(Dollars in thousands, except per share data)
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$	152,082	$	82,123
Shares
Weighted-average common shares outstanding - basic	234,854,494		234,755,591
Effect of dilutive common stock equivalents (1)	1,081,685		171,829
Weighted-average common shares outstanding - diluted	235,936,179		234,927,420
Earnings per common share
Basic	$	0.65	$	0.35
Diluted	$	0.64	$	0.35

(1) For the six months ended June 30, 2021 and 2020, there were 207,128 and 6,378,766 equity awards, respectively, that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented.

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Securities

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Securities

Securities

Equity Securities

    Equity securities are reported at fair value on the Company’s Consolidated Balance Sheets. The Company’s portfolio of equity securities had an estimated fair value of $9.7 million and $36.0 million as of June 30, 2021 and December 31, 2020, respectively. Realized gains and losses from sales of equity securities, as well as changes in fair value of equity securities still held at the reporting date are recognized in the Consolidated Statements of Income.

The following table presents the disaggregated net gains and losses on equity securities reported in the Consolidated Statements of Income:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Unrealized gains recognized on equity securities	$	73	28	784	107
Net gains (losses) recognized on equity securities sold	210		—	(248)	—
Net gains recognized on equity securities	$	283	28	536	107

Debt Securities

The following tables present the amortized cost, gross unrealized gains and losses, and estimated fair value for available-for-sale debt securities and the amortized cost, net unrealized losses, carrying value, gross unrecognized gains and losses, estimated fair value and allowance for credit losses for held-to-maturity debt securities as of the dates indicated.

	At June 30, 2021
	Amortized cost		Gross unrealized gains	Gross unrealized losses	Estimated fair value
	(In thousands)
Available-for-sale:
Debt securities:
Government-sponsored enterprises	$	3,870	194	—	4,064
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,169,804		22,844	2,780	1,189,868
Federal National Mortgage Association	1,165,272		27,310	4,280	1,188,302
Government National Mortgage Association	159,671		2,998	488	162,181
Total mortgage-backed securities available-for-sale	2,494,747		53,152	7,548	2,540,351
Total debt securities available-for-sale	$	2,498,617	53,346	7,548	2,544,415

	At June 30, 2021
	Amortized cost		Net unrealized losses (1)	Carrying value	Gross unrecognized gains (2)	Gross unrecognized losses (2)	Estimated fair value
	(In thousands)
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	$	133,579	—	133,579	3,129	2,112	134,596
Municipal bonds	212,706		—	212,706	14,012	11	226,707
Corporate and other debt securities	146,150		13,127	133,023	36,879	240	169,662
Total debt securities held-to-maturity	492,435		13,127	479,308	54,020	2,363	530,965
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	293,877		44	293,833	6,420	2,309	297,944
Federal National Mortgage Association	377,418		117	377,301	15,996	325	392,972
Government National Mortgage Association	30,449		—	30,449	1,191	—	31,640
Total mortgage-backed securities held-to-maturity	701,744		161	701,583	23,607	2,634	722,556
Total debt securities held-to-maturity	$	1,194,179	13,288	1,180,891	77,627	4,997	1,253,521
Allowance for credit losses				2,079
Total debt securities held-to-maturity, net of allowance for credit losses				1,178,812

(1) Net unrealized losses of held-to-maturity corporate and other debt securities represent the other than temporary impairment related to other non-credit factors recorded prior to the adoption of the current expected credit losses accounting standard on January 1, 2020 that is being amortized through accumulated other comprehensive income over the remaining life of the securities. For mortgage-backed securities, it represents the net loss on previously designated available-for-sale debt securities transferred to held-to-maturity at fair value and is being amortized through accumulated other comprehensive income over the remaining life of the securities.

(2) Unrecognized gains and losses of held-to-maturity debt securities are not reflected in the financial statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other than temporary impairment charge is recognized on a held-to-maturity security, through the date of the balance sheet. Effective January 1, 2020, held-to-maturity debt securities are evaluated for credit losses to determine if an allowance is necessary. Any allowance required is recorded through the provision for credit losses.

	At December 31, 2020
	Amortized cost		Gross unrealized gains	Gross unrealized losses	Estimated fair value
	(In thousands)
Available-for-sale:
Debt securities:
Government-sponsored enterprises	$	4,260	222	—	4,482
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,286,195		30,930	73	1,317,052
Federal National Mortgage Association	1,167,057		38,568	199	1,205,426
Government National Mortgage Association	225,810		5,700	33	231,477
Total mortgage-backed securities available-for-sale	2,679,062		75,198	305	2,753,955
Total debt securities available-for-sale	$	2,683,322	75,420	305	2,758,437

	At December 31, 2020
	Amortized cost		Net unrealized losses (1)	Carrying value	Gross unrecognized gains (2)	Gross unrecognized losses (2)	Estimated fair value
	(In thousands)
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	$	109,016	—	109,016	4,107	709	112,414
Municipal bonds	246,601		—	246,601	14,990	—	261,591
Corporate and other debt securities	144,209		13,644	130,565	20,033	885	149,713
Total debt securities held-to-maturity	499,826		13,644	486,182	39,130	1,594	523,718
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	308,285		66	308,219	9,733	266	317,686
Federal National Mortgage Association	413,601		175	413,426	20,905	—	434,331
Government National Mortgage Association	43,290		—	43,290	1,847	—	45,137
Total mortgage-backed securities held-to-maturity	765,176		241	764,935	32,485	266	797,154
Total debt securities held-to-maturity	$	1,265,002	13,885	1,251,117	71,615	1,860	1,320,872
Allowance for credit losses				3,264
Total debt securities held-to-maturity, net of allowance for credit losses				1,247,853

(1) Net unrealized losses of held-to-maturity corporate and other debt securities represent the other than temporary impairment related to other non-credit factors recorded prior to the adoption of the current expected credit losses accounting standard on January 1, 2020 that is being amortized through accumulated other comprehensive income over the remaining life of the securities. For mortgage-backed securities, it represents the net loss on previously designated available-for-sale debt securities transferred to held-to-maturity at fair value and is being amortized through accumulated other comprehensive income over the remaining life of the securities.

(2) Unrecognized gains and losses of held-to-maturity debt securities are not reflected in the financial statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other than temporary impairment charge is recognized on a held-to-maturity security, through the date of the balance sheet. Effective January 1, 2020, held-to-maturity debt securities are evaluated for credit losses to determine if an allowance is necessary. Any allowance required is recorded through the provision for credit losses.

Gross unrealized losses on debt securities and the estimated fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2021 and December 31, 2020, were as follows:

	June 30, 2021
	Less than 12 months			12 months or more		Total
	Estimated fair value		Unrealized losses	Estimated fair value	Unrealized losses	Estimated fair value	Unrealized losses
	(In thousands)
Available-for-sale:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	178,126	2,780	—	—	178,126	2,780
Federal National Mortgage Association	316,984		4,244	98,285	36	415,269	4,280
Government National Mortgage Association	32,773		488	—	—	32,773	488
Total debt securities available-for-sale	527,883		7,512	98,285	36	626,168	7,548
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	89,991		2,112	—	—	89,991	2,112
Municipal bonds	3,123		11	—	—	3,123	11
Corporate and other debt securities	6,789		240	—	—	6,789	240
Total debt securities held-to-maturity	99,903		2,363	—	—	99,903	2,363
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	116,358		2,309	—	—	116,358	2,309
Federal National Mortgage Association	41,064		325	—	—	41,064	325
Total mortgage-backed securities held-to-maturity	157,422		2,634	—	—	157,422	2,634
Total debt securities held-to-maturity	257,325		4,997	—	—	257,325	4,997
Total	$	785,208	12,509	98,285	36	883,493	12,545

	December 31, 2020
	Less than 12 months			12 months or more		Total
	Estimated fair value		Unrealized losses	Estimated fair value	Unrealized losses	Estimated fair value	Unrealized losses
	(In thousands)
Available-for-sale:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	60,502	73	—	—	60,502	73
Federal National Mortgage Association	123,329		199	—	—	123,329	199
Government National Mortgage Association	9,062		33	—	—	9,062	33
Total debt securities available-for-sale	192,893		305	—	—	192,893	305
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	66,558		709	—	—	66,558	709
Corporate and other debt securities	15,038		885	—	—	15,038	885
Total debt securities held-to-maturity	81,596		1,594	—	—	81,596	1,594
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	40,013		266	—	—	40,013	266
Total debt securities held-to-maturity	121,609		1,860	—	—	121,609	1,860
Total	$	314,502	2,165	—	—	314,502	2,165

    We conduct periodic reviews of individual securities to assess whether an allowance for credit loss is required. Held-to-maturity debt securities are evaluated for expected credit loss utilizing a historical loss methodology, or a discounted cash flows approach which is assessed against the book value of the investment security excluding accrued interest. Available-for-sale debt securities are evaluated to determine if a decline in fair value below the amortized cost basis has resulted from a credit loss or other factors. An impairment on available-for-sale securities related to credit factors would be recorded through an allowance for credit losses. The allowance would be limited to the amount by which the security’s amortized cost basis exceeds the fair value. An impairment on available-for-sale securities that has not been recorded through an allowance for credit losses shall be recorded through other comprehensive income, net of applicable taxes. Investment securities will be written down to fair value through the consolidated statement of income when management intends to sell (or may be required to sell) the securities before they recover in value.

    The majority of our held-to-maturity debt securities portfolio is comprised of agency mortgage-backed securities. For agency (FNMA, FHLMC and GNMA) mortgage-backed securities, and other agency debt instruments, the expectation of non-payment is zero. The timely payment of principal and interest on FNMA and FHLMC securities is guaranteed by each corporation. As each of these corporations is in conservatorship with the federal government, the payment guarantees are considered implicit obligations of the US government. GNMA securities carry the full faith and credit guarantee of the federal government. Because of the existence of government guarantees of timely payment of principal and interest, expected losses on agency securities are assumed to be zero. Changes in the fair value of agency securities in this portfolio are primarily driven by changes in interest rates and other non-credit related factors. At June 30, 2021, our held-to-maturity debt securities portfolio had an allowance for credit losses of $2.1 million. The allowance is related to non-agency corporate and other debt securities. The majority of the allowance is related to a portfolio of collateralized debt obligations backed by pooled TruPS, principally issued by banks and to a lesser extent insurance companies and real estate investment trusts. At June 30, 2021, the TruPS had a carrying value before allowance for credit losses and estimated fair value of $50.5 million and $83.7 million, respectively. The Company does not have the intent to sell these securities and does not believe it is more likely than not that the Company will be required to sell these securities before a recovery of amortized cost. Refer to Note 7, Allowance for Credit Losses, for additional information on the Company’s allowance for credit losses.

    At June 30, 2021, the available-for-sale debt securities portfolio was almost entirely comprised of agency securities. As such, the unrealized losses in this portfolio are primarily driven by changes in interest rates and other non-credit related factors. The Company does not have the intent to sell these securities and does not believe it is more likely than not that the Company will be required to sell these securities before a recovery of amortized cost. As of June 30, 2021, there is no allowance for credit losses related to the Company’s available-for-sale debt securities as the decline in fair value did not result from credit issues.

    Debt securities with a carrying value before allowance for credit losses of $1.80 billion and an estimated fair value of $1.85 billion are pledged to secure borrowings and municipal deposits. The contractual maturities of the Bank’s mortgage-backed securities are generally less than 20 years with effective lives expected to be shorter due to prepayments. Expected maturities may differ from contractual maturities due to underlying loan prepayments or early call privileges of the issuer; therefore, mortgage-backed securities are not included in the following table. Excluding the allowance for credit losses, the amortized cost and estimated fair value of debt securities other than mortgage-backed securities at June 30, 2021, by contractual maturity, are shown below. 

	June 30, 2021
	Carrying value		Estimated fair value
	(In thousands)
Due in one year or less	$	10,489	10,506
Due after one year through five years	9,480		9,641
Due after five years through ten years	164,615		168,579
Due after ten years	298,594		346,303
Total	$	483,178	535,029

Gains and Losses

    Gains and losses on the sale of all securities are determined using the specific identification method. For the three months ended June 30, 2021, the Company received proceeds of $16.3 million from the sale of equity securities which resulted in a net gain of $210,000. For the six months ended June 30, 2021, the Company received proceeds of $32.9 million from the sale of equity securities which resulted in a net loss of $248,000. In addition, the Company received proceeds of $8.2 million from the sale of available-for-sale debt securities which resulted in gains of $398,000 for the six months ended June 30, 2021.

The Company recognized net unrealized gains on equity securities of $73,000 and $784,000, respectively, for the three and six months ended June 30, 2021.    For the three and six months ended June 30, 2020, there were no sales of securities; however, the Company received proceeds of $16.5 million from the call of a held-to-maturity debt security which resulted in a gain of $124,000 during the six months ended June 30, 2020. The Company recognized net unrealized gains on equity securities of $28,000 and $107,000, respectively, for the three and six months ended June 30, 2020.

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Loans Receivable, Net

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Loans Receivable, Net

Loans Receivable, Net

On January 1, 2020, the Company adopted ASU 2016-13, “Financial Instruments- Credit Losses (Topic 326)” that is referred to as the current expected credit loss methodology, (“CECL”) for measuring credit losses. Refer to Note 7, Allowance for Credit Losses, for further details. All disclosures as of and for the six months ended June 30, 2021 and December 31, 2020 are presented in accordance with Topic 326.

The detail of the loan portfolio as of June 30, 2021 and December 31, 2020 was as follows:

	June 30, 2021		December 31, 2020
	(In thousands)
Multi-family loans	$	7,566,131	7,122,840
Commercial real estate loans	4,968,393		4,947,212
Commercial and industrial loans	3,766,551		3,575,641
Construction loans	464,887		404,367
Total commercial loans	16,765,962		16,050,060
Residential mortgage loans	3,887,917		4,119,894
Consumer and other loans	712,147		702,801
Total loans	21,366,026		20,872,755
Deferred fees, premiums and accretable purchase accounting adjustments, net	(13,391)		(9,318)
Allowance for credit losses	(270,114)		(282,986)
Net loans	$	21,082,521	20,580,451

Credit Quality Indicators

    The Company has lending policies and procedures that provide target market, underwriting and other criteria for identified lending segments to codify the level of credit risk the Company is willing to accept. Approval authority levels are delegated to qualified individuals and approval bodies for the extension of credit within the guidance of these policies and procedures. In addition, the Company maintains an independent loan review department that reviews and validates risk assessment on a continual basis.

    The Company assigns ratings to borrowers and transactions based on the assessment of a borrower’s ability to service their debt based on relevant information such as: current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors.

    In connection with the adoption of CECL on January 1, 2020, the Company implemented new risk rating models for borrowers and transactions within its commercial loan portfolio. The risk rating methodology transitioned to a dual risk rating framework which bifurcates ratings into probability of default (PD) and loss given default (LGD). Relevant risks are evaluated prior to approving a transaction to determine if the transaction is within the Company’s risk appetite and the appropriate rating. Strong credit analysis requires current, reliable financial information and documented assessment of the customer’s:

•ability to perform in accordance with the terms of the credit, including adherence to covenants;

•assets and liabilities, liquidity, net worth, and contingent and other off-balance sheet items;

•tax liabilities;

•cash reserves and ability to convert assets to cash;

•income statement and the sources, level, stability, and quality of earnings;

•projected performance, sensitized for stressed circumstances; and

•industry performance relative to peers and industry.

    Each commercial credit facility is assigned a PD and LGD rating for the purpose of informing a credit decision, facilitating the determination of the expected level of credit loss and other portfolio management activities (as well as relationship profitability). The dual risk rating framework and risk rating methodologies allow for consistent determination of risk across the Commercial business as indicated by the risk rating assigned. The methodology used by the Bank applies the same criteria for identification of a credit as for the regulatory definitions of risk ratings:

Pass - “Pass” assets are well protected by the current net worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less cost to acquire and sell, of any underlying collateral in a timely manner.

Watch - A “Watch” asset has all the characteristics of a Pass asset but warrants more than the normal level of supervision. These loans may require more detailed reporting to management because some aspects of underwriting may not conform to policy or adverse events may have affected or could affect the cash flow or ability to continue operating profitably, provided, however, the events do not constitute an undue credit risk. Residential and consumer loans delinquent 30-59 days are considered watch if not a troubled debt restructuring (“TDR”). In addition, any residential or consumer loan currently on deferment in accordance with the CARES Act or the interagency statement issued by bank regulatory agencies are considered watch.

Special Mention - A “Special Mention” asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special Mention assets are not adversely classified and do not expose an institution to sufficient risk to warrant adverse classification. Residential and consumer loans delinquent 60-89 days are considered special mention if not a TDR.

Substandard - A “Substandard” asset is inadequately protected by the current worth and paying capacity of the obligor or by the collateral pledged, if any. Assets so classified must have a well-defined weakness, or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Residential and consumer loans delinquent 90 days or greater as well as TDRs are considered substandard.

Doubtful - An asset classified “Doubtful” has all the weaknesses inherent in one classified substandard with the added characteristic that the weaknesses make collection or liquidation in full highly questionable and improbable on the basis of currently known facts, conditions, and values.

Loss - An asset or portion thereof, classified “Loss” is considered uncollectible and of such little value that its continuance on the institution’s books as an asset, without establishment of a specific valuation allowance or charge-off, is not warranted. This classification does not necessarily mean that an asset has no recovery or salvage value; but rather, there is much doubt about whether, how much, or when the recovery will occur. As such, it is not practical or desirable to defer the write-off.

The following table presents the risk category of loans as of June 30, 2021 by class of loan and vintage year:

	Term Loans by Origination Year
	2021		2020	2019	2018	2017	Prior	Revolving Loans	Total
	(In thousands)
Multi-family
Pass	$	1,218,746	980,598	496,911	785,223	497,921	1,585,057	8,647	5,573,103
Watch	28,615		11,443	135,748	398,023	149,954	514,744	1,340	1,239,867
Special mention	—		—	3,555	71,712	43,175	198,600	—	317,042
Substandard	—		—	10,792	16,627	20,879	385,930	1,891	436,119
Total Multi-family	1,247,361		992,041	647,006	1,271,585	711,929	2,684,331	11,878	7,566,131
Commercial real estate
Pass	409,645		504,617	665,215	554,071	431,283	1,365,363	29,199	3,959,393
Watch	4,585		92,727	109,093	153,269	63,295	200,688	5,199	628,856
Special mention	—		383	7,076	5,247	15,135	109,529	2,846	140,216
Substandard	—		—	—	18,065	45,201	176,662	—	239,928
Total Commercial real estate	414,230		597,727	781,384	730,652	554,914	1,852,242	37,244	4,968,393
Commercial and industrial
Pass	462,248		858,426	573,325	290,068	162,082	454,686	287,706	3,088,541
Watch	7,329		34,038	88,129	40,783	21,319	48,986	41,315	281,899
Special mention	—		16,113	133,747	55,574	12,822	81,686	1,500	301,442
Substandard	—		4,004	3,783	3,948	46,635	31,781	4,518	94,669
Total Commercial and industrial	469,577		912,581	798,984	390,373	242,858	617,139	335,039	3,766,551
Construction
Pass	27,362		131,479	55,821	—	—	—	189,074	403,736
Watch	—		6,950	—	—	—	—	—	6,950
Special mention	—		—	5,350	23,375	—	—	25,476	54,201
Substandard	—		—	—	—	—	—	—	—
Total Construction	27,362		138,429	61,171	23,375	—	—	214,550	464,887
Residential mortgage
Pass	652,580		557,707	321,108	287,958	369,500	1,570,083	—	3,758,936
Watch	—		810	10,711	11,263	11,925	43,340	—	78,049
Special mention	—		—	—	734	—	3,075	—	3,809
Substandard	—		—	1,523	1,933	1,852	41,723	92	47,123
Total residential mortgage	652,580		558,517	333,342	301,888	383,277	1,658,221	92	3,887,917
Consumer and other
Pass	2,076		2,811	4,443	4,695	11,183	43,565	633,223	701,996
Watch	—		—	37	137	2,057	511	4,288	7,030
Special mention	—		—	—	—	—	7	1,148	1,155
Substandard	—		—	—	1	337	1,140	488	1,966
Total Consumer and other	2,076		2,811	4,480	4,833	13,577	45,223	639,147	712,147
All classes
Pass	2,772,657		3,035,638	2,116,823	1,922,015	1,471,969	5,018,754	1,147,849	17,485,705
Watch	40,529		145,968	343,718	603,475	248,550	808,269	52,142	2,242,651
Special mention	—		16,496	149,728	156,642	71,132	392,897	30,970	817,865
Substandard	—		4,004	16,098	40,574	114,904	637,236	6,989	819,805
Total loans	$	2,813,186	3,202,106	2,626,367	2,722,706	1,906,555	6,857,156	1,237,950	21,366,026

The following table presents the risk category of loans as of December 31, 2020 by class of loan and vintage year:

	Term Loans by Origination Year
	2020		2019	2018	2017	2016	Prior	Revolving Loans	Total
	(In thousands)
Multi-family
Pass	$	1,002,259	515,446	912,910	601,440	850,781	1,199,133	6,986	5,088,955
Watch	21,366		153,404	374,363	135,348	299,413	220,668	—	1,204,562
Special mention	4,560		—	86,119	32,506	48,020	205,916	—	377,121
Substandard	—		7,285	8,436	17,580	139,975	277,535	1,391	452,202
Total Multi-family	1,028,185		676,135	1,381,828	786,874	1,338,189	1,903,252	8,377	7,122,840
Commercial real estate
Pass	529,244		684,807	646,708	461,097	495,822	1,081,512	32,509	3,931,699
Watch	87,137		132,932	117,598	74,379	61,794	165,702	3,428	642,970
Special mention	375		6,988	5,279	13,295	51,880	71,745	250	149,812
Substandard	—		—	8,212	40,024	29,488	144,758	249	222,731
Total Commercial real estate	616,756		824,727	777,797	588,795	638,984	1,463,717	36,436	4,947,212
Commercial and industrial
Pass	1,007,949		619,275	328,917	156,596	176,557	348,278	203,302	2,840,874
Watch	49,208		115,888	43,791	48,230	28,708	34,697	31,931	352,453
Special mention	16,813		111,399	48,887	14,770	14,102	76,554	798	283,323
Substandard	—		6,128	8,236	42,297	4,341	22,707	15,282	98,991
Total Commercial and industrial	1,073,970		852,690	429,831	261,893	223,708	482,236	251,313	3,575,641
Construction
Pass	85,915		58,041	23,375	—	—	—	197,437	364,768
Watch	6,891		5,350	—	—	—	—	—	12,241
Special mention	—		—	15,228	—	—	—	—	15,228
Substandard	—		—	—	—	—	—	12,130	12,130
Total Construction	92,806		63,391	38,603	—	—	—	209,567	404,367
Residential mortgage
Pass	556,761		450,363	425,617	530,676	407,201	1,601,457	—	3,972,075
Watch	809		12,929	13,465	14,704	8,517	44,299	—	94,723
Special mention	—		—	584	—	—	3,402	—	3,986
Substandard	—		1,523	1,972	1,336	246	43,936	97	49,110
Total residential mortgage	557,570		464,815	441,638	546,716	415,964	1,693,094	97	4,119,894
Consumer and other
Pass	5,031		6,853	5,693	7,448	6,692	57,103	601,481	690,301
Watch	—		39	137	56	156	440	7,655	8,483
Special mention	—		—	—	—	—	292	1,184	1,476
Substandard	—		—	—	—	—	1,796	745	2,541
Total Consumer and other	5,031		6,892	5,830	7,504	6,848	59,631	611,065	702,801
All classes
Pass	3,187,159		2,334,785	2,343,220	1,757,257	1,937,053	4,287,483	1,041,715	16,888,672
Watch	165,411		420,542	549,354	272,717	398,588	465,806	43,014	2,315,432
Special mention	21,748		118,387	156,097	60,571	114,002	357,909	2,232	830,946
Substandard	—		14,936	26,856	101,237	174,050	490,732	29,894	837,705
Total loans	$	3,374,318	2,888,650	3,075,527	2,191,782	2,623,693	5,601,930	1,116,855	20,872,755

Delinquent and Non-Accrual Loans

In the absence of other intervening factors, loans granted payment deferrals related to COVID-19 are not reported as past due or placed on non-accrual status in accordance with the CARES Act and Interagency Guidance.

The following tables present the payment status of the recorded investment in past due loans as of June 30, 2021 and December 31, 2020 by class of loans:

	June 30, 2021
	30-59 Days		60-89 Days	Greater than 90 Days	Total Past Due	Current	Total Loans Receivable
	(In thousands)
Commercial loans:
Multi-family	$	16,228	11,126	13,161	40,515	7,525,616	7,566,131
Commercial real estate	717		628	6,395	7,740	4,960,653	4,968,393
Commercial and industrial	14,538		40	3,111	17,689	3,748,862	3,766,551
Construction	—		—	—	—	464,887	464,887
Total commercial loans	31,483		11,794	22,667	65,944	16,700,018	16,765,962
Residential mortgage	8,510		4,118	28,193	40,821	3,847,096	3,887,917
Consumer and other	4,590		1,155	1,447	7,192	704,955	712,147
Total	$	44,583	17,067	52,307	113,957	21,252,069	21,366,026

	December 31, 2020
	30-59 Days		60-89 Days	Greater than 90 Days	Total Past Due	Current	Total Loans Receivable
	(In thousands)
Commercial loans:
Multi-family	$	7,421	—	32,884	40,305	7,082,535	7,122,840
Commercial real estate	12,805		2,450	6,356	21,611	4,925,601	4,947,212
Commercial and industrial	986		3,116	1,769	5,871	3,569,770	3,575,641
Construction	—		—	—	—	404,367	404,367
Total commercial loans	21,212		5,566	41,009	67,787	15,982,273	16,050,060
Residential mortgage	13,768		4,258	29,124	47,150	4,072,744	4,119,894
Consumer and other	5,645		1,476	1,984	9,105	693,696	702,801
Total	$	40,625	11,300	72,117	124,042	20,748,713	20,872,755

The following table presents non-accrual loans at the dates indicated:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Non-accrual:
Multi-family	11	$	16,557	15	$	35,567
Commercial real estate	24	13,027		29	15,894
Commercial and industrial	13	5,200		21	9,212
Construction	—	—		—	—
Total commercial loans	48	34,784		65	60,673
Residential mortgage and consumer	232	42,823		246	46,452
Total non-accrual loans	280	$	77,607	311	$	107,125

The Company recognized $538,000 of interest income on non-accrual loans during the six months ended June 30, 2021.

Individually Evaluated Loans

    Loans which do not share common risk characteristics with other loans are individually evaluated as part of the process of calculating the allowance for credit losses. The evaluation is determined on an individual basis using the present value of expected cash flows or the fair value of the collateral as of the reporting date. When management determines that the fair value of collateral securing a collateral dependent loan inadequately covers the balance of net principal, the net principal balance is written down to the fair value of the collateral, net of estimated selling costs as applicable, rather than assigning an allowance. See Note 16, Fair Value Measurements, for information regarding the valuation process for collateral dependent loans.

The following table presents individually evaluated collateral-dependent loans by class of loans at the dates indicated:

	June 30, 2021				December 31, 2020
	Real Estate		Other	Total	Real Estate		Other	Total
	(Dollars in thousands)
Multi-family	$	13,923	—	13,923	$	31,484	—	31,484
Commercial real estate	7,456		—	7,456	8,758		—	8,758
Commercial and industrial	2,645		430	3,075	2,994		3,549	6,543
Construction	—		—	—	—		—	—
Total commercial loans	24,024		430	24,454	43,236		3,549	46,785
Residential mortgage and consumer	23,298		91	23,389	25,158		103	25,261
Total collateral-dependent loans	$	47,322	521	47,843	$	68,394	3,652	72,046

On an annual basis, the Company reviews the lease residuals and assets currently off-lease for potential impairment. For the year ended December 31, 2019, the Company recorded an impairment charge of $2.6 million as the fair value of certain equipment decreased at a rate greater than originally projected. An additional impairment charge of $2.2 million was recorded on the same equipment class during the year ended December 31, 2020 given the extended downturn in the market for these assets. For the six months ended June 30, 2021 there were no additional charges.

TDR Loans Included in Non-Accrual

Included in the non-accrual table above are TDR loans whose payment status is current but the Company has classified as non-accrual as the loans have not maintained their current payment status for six consecutive months under the restructured terms and therefore do not meet the criteria for accrual status. As of June 30, 2021 and December 31, 2020, these loans are comprised of the following:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
TDR with payment status current classified as non-accrual:
Commercial real estate	3	$	4,360	3	$	3,907
Residential mortgage and consumer	31	5,094		32	5,634
Total TDR with payment status current classified as non-accrual	34	$	9,454	35	$	9,541

The following table presents TDR loans which were also 30-89 days delinquent and classified as non-accrual at the dates indicated:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
TDR 30-89 days delinquent classified as non-accrual:
Commercial real estate	1	$	170	1	$	1,780
Residential mortgage and consumer	8	327		10	942
Total TDR 30-89 days delinquent classified as non-accrual	9	$	497	11	$	2,722

    The Company has no loans past due 90 days or more delinquent that are still accruing interest.

Guidance on Non-TDR Loan Modifications due to COVID-19

The Company implemented various consumer and commercial loan modification programs to provide its borrowers relief from the economic impacts of COVID-19. In accordance with the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), the Company elected to not apply troubled debt restructuring classification to any COVID-19 related loan modifications that occurred after March 1, 2020 to borrowers who were current as of December 31, 2019. Accordingly, these modifications are exempt from troubled debt restructuring classification under U.S. generally accepted accounting principles (“U.S. GAAP”) and were not classified as troubled debt restructurings (“TDRs”). The Consolidated Appropriations Act of 2021 extends this provision of the CARES Act to January 1, 2022. In addition, for loans modified in response to the COVID-19 pandemic that did not meet the above criteria (e.g., current payment status at December 31, 2019), the Company applied the guidance included in an interagency statement issued by the bank regulatory agencies. For loan modifications that include a payment deferral and are not TDRs, the borrower’s past due and non-accrual status have not been impacted during the deferral period. Interest income has continued to be recognized over the contractual life of the loan.

Troubled Debt Restructurings    

    On a case-by-case basis, the Company may agree to modify the contractual terms of a borrower’s loan to remain competitive and assist customers who may be experiencing financial difficulty, as well as preserve the Company’s position in the loan. If the borrower is experiencing financial difficulties and a concession has been made at the time of such modification, the loan is classified as a TDR.

    Substantially all of our TDR loan modifications involve lowering the monthly payments on such loans through either a reduction in interest rate below a market rate, an extension of the term of the loan, or a combination of these two methods. These modifications rarely result in the forgiveness of principal or accrued interest. In addition, we frequently obtain additional collateral or guarantor support when modifying commercial loans. Restructured loans remain on non-accrual status until payment is reasonably assured (generally six consecutive months of payments) and both principal and interest are deemed collectible.

    Consistent with the CARES Act and interagency guidance which allows temporary relief for current borrowers affected by COVID-19, we have worked with borrowers and granted certain modifications through programs related to COVID-19 relief. At June 30, 2021, loans with an aggregate outstanding balance of approximately $599.0 million have been granted payment deferment as a result of financial disruptions associated with the COVID-19 pandemic. Such modifications that met the criteria are not included in our TDR totals and discussion below.

The following tables present the total TDR loans at June 30, 2021 and December 31, 2020:

	June 30, 2021
	Accrual			Non-accrual			Total
	# of loans	Amount		# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Commercial loans:
Commercial real estate	—	$	—	4	$	4,530	4	$	4,530
Commercial and industrial	1	430		—	—		1	430
Total commercial loans	1	430		4	4,530		5	4,960
Residential mortgage and consumer	48	8,880		76	14,509		124	23,389
Total	49	$	9,310	80	$	19,039	129	$	28,349

	December 31, 2020
	Accrual			Non-accrual			Total
	# of loans	Amount		# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Commercial loans:
Commercial real estate	—	$	—	4	$	5,687	4	$	5,687
Commercial and industrial	2	630		2	2,919		4	3,549
Total commercial loans	2	630		6	8,606		8	9,236
Residential mortgage and consumer	45	8,602		83	16,659		128	25,261
Total	47	$	9,232	89	$	25,265	136	$	34,497

The following tables present information about TDRs that occurred during the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment		Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings:
Commercial real estate	1	$	170	$	170	1	$	1,330	$	1,330
Residential mortgage and consumer	4	226		226		—	—		—

	Six Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment		Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings:
Commercial real estate	1	$	170	$	170	1	$	1,330	$	1,330
Commercial and industrial	—	—		—		1	933		933
Residential mortgage and consumer	4	226		226		—	—		—

    Post-modification recorded investment represents the net book balance immediately following modification.

    Collateral dependent loans classified as TDRs were written down to the estimated fair value of the collateral. There were no charge offs of TDRs during the three months ended June 30, 2021. There were $11,000 in charge offs of TDRs of collateral dependent residential loans during the six months ended June 30, 2021. There were $163,000 in charge-offs for TDRs of unsecured commercial and industrial loans during the three and six months ended June 30, 2020. The allowance for credit losses associated with the TDRs presented in the above tables totaled $1.4 million as of June 30, 2021 and December 31, 2020, respectively.

    Loan modifications generally involve the reduction in loan interest rate and/or extension of loan maturity dates and also may include step up interest rates in their modified terms which will impact their weighted average yield in the future. The commercial loan modification which qualified as a TDR in the six months ended June 30, 2021 resulted from a forbearance agreement. The residential loan modifications which qualified as TDRs in the six months ended June 30, 2021 had their maturity extended and/or interest rate reduced to current market terms. One of the commercial loan modifications which qualified as a TDR in the six months ended June 30, 2020 was a loan which had already been on non-accrual status and was granted a 90-day deferral of payment due to circumstances related to COVID-19, while another commercial loan modification which qualified as a TDR in the six months ended June 30, 2020 had its maturity extended.

The following table presents information about pre and post modification interest yield for TDRs which occurred during the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield		Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield
Troubled Debt Restructurings:
Commercial real estate	1	6.00	%	6.00	%	1	3.88	%	3.88	%
Residential mortgage and consumer	4	6.82	%	3.07	%	—	—	%	—	%

	Six Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield		Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield
Troubled Debt Restructurings:
Commercial real estate	1	6.00	%	6.00	%	1	3.88	%	3.88	%
Commercial and industrial	—	—	%	—	%	1	4.75	%	4.75	%
Residential mortgage and consumer	4	6.82	%	3.07	%	—	—	%	—	%

    Payment defaults for loans modified as a TDR in the previous 12 months to June 30, 2021 consisted of two commercial real estate loans and five residential loans with a recorded investment of $2.0 million and $1.2 million, respectively. Payment defaults for loans modified as a TDR in the previous 12 months to June 30, 2020 consisted of one residential loan with a recorded investment of $201,000 at June 30, 2020.

Non-Performing Loan Sales

During the six months ended June 30, 2021, the Company sold three non-performing multi-family loans with a net book balance of $19.9 million. The Company recognized a recovery of $1.4 million in the allowance for credit losses on the sale of one of the loans. Also during the six months ended June 30, 2021, the Company sold a non-performing commercial real estate loan with a net book balance of $762,000.

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Allowance for Credit Losses

6 Months Ended

Jun. 30, 2021

Credit Loss [Abstract]

Allowance for Credit Losses

Allowance for Credit Losses

    On January 1, 2020, the Company adopted ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”, which replaces the incurred loss methodology with an expected loss methodology that is referred to as the CECL methodology.

An analysis of the provision for credit losses is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Provision for loan losses	$	(14,452)	29,924	(15,413)	56,676
Provision for debt securities held-to-maturity	(259)		249	(1,185)	680
Provision for off-balance sheet credit exposures	5,021		3,105	3,936	7,148
Total provision for credit losses	$	(9,690)	33,278	(12,662)	64,504

Allowance for Credit Losses on Loans Receivable

An analysis of the allowance for credit losses for loans receivable is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of period	$	283,760	243,288	282,986	228,120
Adjustment for adoption of ASC 326	—		—	—	(3,551)
Gross charge offs	(697)		(5,058)	(1,378)	(15,988)
Recoveries	1,503		985	3,919	3,882
Net charge-offs	806		(4,073)	2,541	(12,106)
Allowance at acquisition on loans purchased with credit deterioration	—		4,180	—	4,180
Provision for credit loss expense	(14,452)		29,924	(15,413)	56,676
Balance at end of the period	$	270,114	273,319	270,114	273,319

    Accrued interest receivable on loans, reported as a component of accrued interest receivable on the balance sheet, totaled $70.5 million at June 30, 2021 and is excluded from credit losses. For the six months ended June 30, 2021 loans in payment deferral with accrued interest and deferred escrow are included in credit losses.

    The allowance for credit losses represents the estimated amount considered necessary to cover lifetime expected credit losses inherent in financial assets at the balance sheet date. The lifetime estimate considers multiple economic scenarios, including recessionary scenarios that assume deterioration in key economic variables such as gross domestic product, unemployment rate and real estate prices.  The Company assesses the selection and probability weightings of each economic scenario.  In estimating the allowance for credit losses, multiple economic outlooks are used that include a base or consensus case, a downside recessionary case and an upside scenario to reflect the potential for continued improvement in the economic outlook.  In addition, the allowance for credit losses includes qualitative reserves for certain segments that may not be fully recognized through its quantitative models.  There are still many unknowns including the duration of the impact of COVID-19 on the economy and the results of the government fiscal and monetary actions along with payment deferral programs. The Company will continue to evaluate the allowance for credit losses and the related economic outlook each quarter.

The following tables present the balance in the allowance for credit losses for loans by portfolio segment as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Multi- Family Loans		Commercial Real Estate Loans	Commercial and Industrial Loans	Construction Loans	Residential Mortgage Loans	Consumer and Other Loans	Unallocated	Total
	(Dollars in thousands)
Allowance for credit losses:
Balance as of December 31, 2020	$	56,731	115,918	79,327	7,267	19,941	3,802	—	282,986
Charge-offs	(479)		(118)	(615)	—	(158)	(8)	—	(1,378)
Recoveries	1,863		74	972	—	934	76	—	3,919
Provision for credit loss expense	3,596		(22,421)	3,157	5,553	(4,528)	(770)	—	(15,413)
Ending balance-June 30, 2021	$	61,711	93,453	82,841	12,820	16,189	3,100	—	270,114

	December 31, 2020
	Multi- Family Loans		Commercial Real Estate Loans	Commercial and Industrial Loans	Construction Loans	Residential Mortgage Loans	Consumer and Other Loans	Unallocated	Total
	(Dollars in thousands)
Allowance for credit losses:
Balance as of December 31, 2019	$	74,099	50,925	74,396	6,816	17,391	2,548	1,945	228,120
Adjustment for adoption of ASC 326	(9,741)		(4,631)	(7,511)	(1,901)	20,089	2,089	(1,945)	(3,551)
Balance as of January 1, 2020	64,358		46,294	66,885	4,915	37,480	4,637	—	224,569
Charge-offs	(4,631)		(521)	(12,005)	—	(1,190)	(41)	—	(18,388)
Recoveries	1,965		412	4,459	—	677	222	—	7,735
Allowance at acquisition on loans purchased with credit deterioration	209		3,208	287	127	344	5	—	4,180
Provision for credit loss expense	(5,170)		66,525	19,701	2,225	(17,370)	(1,021)	—	64,890
Ending balance-December 31, 2020	$	56,731	115,918	79,327	7,267	19,941	3,802	—	282,986

Allowance for Credit Losses on Debt Securities

An analysis of the allowance for credit losses for debt securities held-to-maturity is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of the period	$	2,338	2,995	3,264	—
Impact of adopting ASC 326	—		—	—	2,564
Provision for credit losses	(259)		249	(1,185)	680
Balance at end of the period	$	2,079	3,244	2,079	3,244

The following tables present the balance in the allowance for credit losses for debt securities held-to-maturity by portfolio segment as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Municipal Bonds		Corporate and Other Debt Securities	Total
	(Dollars in thousands)
Allowance for credit losses:
Beginning balance-December 31, 2020	$	34	3,230	3,264
Provision for credit loss	(10)		(1,175)	(1,185)
Ending balance-June 30, 2021	$	24	2,055	2,079

	December 31, 2020
	Municipal Bonds		Corporate and Other Debt Securities	Total
	(Dollars in thousands)
Allowance for credit losses:
Beginning balance - December 31, 2019	$	—	—	—
Impact of adopting ASC 326	17		2,547	2,564
Provision for credit loss	17		683	700
Ending balance - December 31, 2020	$	34	3,230	3,264

Accrued interest receivable on debt securities held-to-maturity totaled $4.5 million at June 30, 2021 and is excluded from the estimate of credit losses.

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures

An analysis of the allowance for credit losses for off-balance sheet credit exposures is as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of the period	$	16,582	17,142	17,667	425
Impact of adopting ASC 326	—		—	—	12,674
Provision for credit losses	5,021		3,105	3,936	7,148
Balance at end of the period	$	21,603	20,247	21,603	20,247

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Deposits

6 Months Ended

Jun. 30, 2021

Deposits [Abstract]

Deposits

Deposits

Deposits are summarized as follows:

	June 30, 2021		December 31, 2020
	(In thousands)
Non-interest bearing:
Checking accounts	$	4,169,816	3,663,073
Interest bearing:
Checking accounts	6,354,368		6,043,393
Money market deposits	4,551,806		5,037,327
Savings	2,076,711		2,063,447
Certificates of deposit	2,286,265		2,718,179
Total deposits	$	19,438,966	19,525,419

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Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The following table summarizes goodwill and intangible assets at June 30, 2021 and December 31, 2020:

	June 30, 2021		December 31, 2020
	(In thousands)
Mortgage servicing rights	$	11,122	10,957
Core deposit premiums	3,022		3,560
Other	543		581
Total other intangible assets	14,687		15,098
Goodwill	94,535		94,535
Goodwill and intangible assets	$	109,222	109,633

The following table summarizes other intangible assets as of June 30, 2021 and December 31, 2020:

	Gross Intangible Asset		Accumulated Amortization	Valuation Allowance	Net Intangible Assets
	(In thousands)
June 30, 2021
Mortgage servicing rights	$	16,776	(5,581)	(73)	11,122
Core deposit premiums	23,063		(20,041)	—	3,022
Other	850		(307)	—	543
Total other intangible assets	$	40,689	(25,929)	(73)	14,687
December 31, 2020
Mortgage servicing rights	$	17,559	(5,592)	(1,010)	10,957
Core deposit premiums	23,063		(19,503)	—	3,560
Other	1,150		(569)	—	581
Total other intangible assets	$	41,772	(25,664)	(1,010)	15,098

Mortgage servicing rights are accounted for using the amortization method. Under this method, the Company amortizes the loan servicing asset in proportion to, and over the period of, estimated net servicing revenues. The Company sells loans on a servicing-retained basis. The unpaid principal balance of these loans were $1.54 billion and $1.69 billion at June 30, 2021 and December 31, 2020, respectively, all of which relate to mortgage loans. At June 30, 2021 and December 31, 2020, the servicing asset, included in other intangible assets, had an estimated fair value of $11.9 million and $11.2 million, respectively. At June 30, 2021, fair value was based on expected future cash flows considering a weighted average discount rate of 11.32%, a weighted average constant prepayment rate on mortgages of 14.76% and a weighted average life of 5.1 years.

Based on an analysis of fair values as of June 30, 2021, the Company determined that a $73,000 valuation allowance for mortgage servicing rights was required, an increase of approximately $13,000 from the previous quarter. See Note 16, Fair Value Measurements, for additional details.

    Core deposit premiums are amortized using an accelerated method and having a weighted average amortization period of 10 years. For the year ended December 31, 2020, the Company recorded $2.5 million in core deposit premiums resulting from the acquisition of Gold Coast.

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Leases

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Leases

Leases

    The Company has operating leases for corporate offices, branch locations and certain equipment. For these operating leases, the Company recognizes a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date. The Company’s leases have remaining lease terms of up to 15 years, some of which include options to extend the leases for up to 10 years. Certain of our operating leases for branch locations contain variable lease payments related to consumer price index adjustments.

The following table presents the balance sheet information related to our operating leases:

	June 30, 2021			December 31, 2020
	(Dollars in thousands)
Operating lease right-of-use assets	$	200,425		199,981
Operating lease liabilities	213,050			212,559
Weighted average remaining lease term	8.9 years			9.4 years
Weighted average discount rate	2.44		%	2.49	%

    In determining the present value of lease payments, the discount rate used for each individual lease is the rate implicit in the lease, unless that rate cannot be readily determined, in which case the Company is required to use its incremental borrowing rate based on the information available at commencement date. For its incremental borrowing rate, the Company uses the borrowing rates offered to the Company by the Federal Home Loan Bank, which reflects the rates a lender would charge the Company to obtain a collateralized loan.

The following table presents the components of total operating lease cost recognized in the Consolidated Statements of Income:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Included in office occupancy and equipment expense:
Operating lease cost	$	7,280	6,526	14,429	12,807
Short-term lease cost	214		103	430	189
Included in other income:
Sublease income	35		51	86	118

The following table presents supplemental cash flow information related to operating leases:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$	7,271	5,872	14,533	11,579
Operating lease liabilities arising from obtaining right-of-use assets (non-cash):
Operating leases	11,066		7,278	13,234	7,837

    Future minimum operating lease payments and reconciliation to operating lease liabilities at June 30, 2021 and December 31, 2020:

	June 30, 2021		December 31, 2020
	(In thousands)
2021	$	14,535	28,844
2022	28,986		27,448
2023	27,937		26,354
2024	27,912		26,300
2025	27,267		25,496
Thereafter	111,198		104,729
Total lease payments	237,835		239,171
Less: Imputed interest	(24,785)		(26,612)
Total operating lease liabilities	$	213,050	$	212,559

    The Company also has finance leases for certain equipment. The Company’s right-of-use assets and lease liabilities for finance leases were both $1.6 million at June 30, 2021. The finance lease right-of-use assets and finance lease liabilities are included within Other assets and Other liabilities, respectively, on the Consolidated Balance Sheet.

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Equity Incentive Plan

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Equity Incentive Plan

Equity Incentive Plan

    At the annual meeting held on June 9, 2015, stockholders of the Company approved the Investors Bancorp, Inc. 2015 Equity Incentive Plan (“2015 Plan”) which provides for the issuance or delivery of up to 30,881,296 shares (13,234,841 restricted stock awards and 17,646,455 stock options) of Investors Bancorp, Inc. common stock.

    Restricted shares granted under the 2015 Plan vest in equal installments, over the service period generally ranging from 5 to 7 years beginning one year from the date of grant. Additionally, certain restricted shares awarded are performance vesting awards, which may or may not vest depending upon the attainment of certain corporate financial targets. The vesting of restricted stock may accelerate in accordance with the terms of the 2015 Plan. The product of the number of shares granted and the grant date closing market price of the Company’s common stock determine the fair value of restricted shares under the 2015 Plan. Management recognizes compensation expense for the fair value of restricted shares on a straight-line basis over the requisite service period. For the six months ended June 30, 2021 and June 30, 2020, the Company granted 239,166 and 68,923 shares of restricted stock awards under the 2015 Plan, respectively.

    Stock options granted under the 2015 Plan vest in equal installments, over the service period generally ranging from 5 to 7 years beginning one year from the date of grant. The vesting of stock options may accelerate in accordance with the terms of the 2015 Plan. Stock options were granted at an exercise price equal to the fair value of the Company’s common stock on the grant date based on the closing market price and have an expiration period of 10 years. For the six months ended June 30, 2021 and June 30, 2020, the Company granted no stock options under the 2015 Plan.

    The fair value of stock options granted as part of the 2015 Plan are estimated utilizing the Black-Scholes option pricing model. The weighted average expected life of the stock option represents the period of time that stock options are expected to be outstanding and is estimated using historical data of stock option exercises and forfeitures. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant. The expected volatility is based on the historical volatility of the Company’s stock. The Company recognizes compensation expense for the fair values of these awards, which have graded vesting, on a straight-line basis over the requisite service period of the awards. Upon exercise of vested options, management expects to draw on treasury stock as the source for shares.

    The following table presents the share-based compensation expense for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Stock option expense	$	947	1,011	1,857	1,999
Restricted stock expense	2,760		2,943	5,310	5,844
Total share-based compensation expense	$	3,707	3,954	7,167	7,843

The following is a summary of the Company’s stock option activity and related information for the six months ended June 30, 2021:

	Number of Stock Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2020	5,570,858	$	12.46	4.5	$	191
Granted	—	—		—
Exercised	(417,605)	12.12		3.9
Forfeited	(31,429)	12.54
Expired	(14,286)	12.54
Outstanding at June 30, 2021	5,107,538	12.49		4.1	9,059
Exercisable at June 30, 2021	4,196,262	$	12.48	4.0	$	7,478

    Expected future expense relating to the non-vested options outstanding as of June 30, 2021 is $3.7 million over a weighted average period of 0.85 years.

    The following is a summary of the status of the Company’s restricted shares as of June 30, 2021 and changes therein during the six months ended:

	Number of Shares Awarded	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020	1,974,235	$	12.44
Granted	239,166	13.17
Vested	(775,097)	12.39
Forfeited	(20,567)	11.70
Outstanding and non-vested at June 30, 2021	1,417,737	$	12.47

    Expected future expense relating to the non-vested restricted shares outstanding as of June 30, 2021 is $15.2 million over a weighted average period of 2.11 years.

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Net Periodic Benefit Plan Expense

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Net Periodic Benefit Plan Expense

Net Periodic Benefit Plan Expense

    The Company has an Executive Supplemental Retirement Wage Replacement Plan (“SERP II”) and the Supplemental ESOP and Retirement Plan (“SERP I”) (collectively, the “SERPs”). The SERP II is a nonqualified, defined benefit plan which provides benefits to certain executives as designated by the Compensation and Benefits Committee of the Board of Directors. More specifically, the SERP II was designed to provide participants with a normal retirement benefit equal to an annual benefit of 60% of the participant’s highest annual base salary and cash incentive (over a consecutive 36-month period within the participant’s credited service period) reduced by the sum of the benefits provided under the Pentegra Defined Benefit Plan for Financial Institutions (“Pentegra DB Plan”) and the SERP I. Effective as of the close of business of December 31, 2016, the SERP II was amended to freeze future benefit accruals subsequent to the 2016 year of service.

    The SERP I compensates certain executives (as designated by the Compensation and Benefits Committee of the Board of Directors) participating in the ESOP whose contributions are limited by the Internal Revenue Code. The Company also maintains the Amended and Restated Director Retirement Plan (“Directors’ Plan”) for certain directors, which is a nonqualified, defined benefit plan. The Directors’ Plan was frozen on November 21, 2006 such that no new benefits accrued under, and no

new directors were eligible to participate in the plan. The SERPs and the Directors’ Plan are unfunded and the costs of the plans are recognized over the period that services are provided.

The components of net periodic benefit cost for the Directors’ Plan and the SERP II are as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Interest cost	$	250	324	500	648
Amortization of:
Net loss	142		299	284	598
Total net periodic benefit cost	$	392	623	784	1,246

    Due to the unfunded nature of the SERPs and the Directors’ Plan, no contributions have been made or were expected to be made during the six months ended June 30, 2021.

    The Company also maintains the Pentegra DB Plan. As of December 31, 2016, the annual benefit provided under the Pentegra DB plan was frozen by an amendment to the plan. Freezing the plan eliminated all future benefit accruals and each participant’s frozen accrued benefit was determined as of December 31, 2016 and no further benefits accrued subsequent to December 31, 2016. Since it is a multi-employer plan, costs of the pension plan are based on contributions required to be made to the pension plan. There was no contribution required during the six months ended June 30, 2021. We anticipate contributing funds to the plan to meet any minimum funding requirements for the remainder of 2021.

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Derivatives and Hedging Activities

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

    The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s floating rate wholesale fundings and pools of fixed-rate assets.

Cash Flow Hedges of Interest Rate Risk

    The Company’s objectives in using interest rate derivatives are primarily to reduce cost and add stability to interest expense in an effort to manage its exposure to interest rate movements. Interest rate swaps designated as cash flow hedges involve the receipt of amounts subject to variability caused by changes in interest rates from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.  Changes in the fair value of derivatives designated and that qualify as cash flow hedges are initially recorded in other comprehensive income and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Such derivatives were used to hedge the variability in cash flows associated with wholesale funding. The Company is hedging its exposure to the variability in future cash flows for forecasted transactions over a maximum period of nineteen months (excluding forecasted transactions related to the payment of variable interest on existing financial instruments).

During the year ended December 31, 2020, the Company terminated four interest rate swaps with an aggregate notional of $400.0 million. Upon termination, the Company accelerated the reclassification of amounts in other comprehensive income to earnings as a result of the hedged forecasted transactions becoming probable not to occur.

    Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate borrowings. During the next twelve months, the Company estimates that an additional $41.7 million will be reclassified as an increase to interest expense.

Fair Value Hedges of Interest Rate Risk

    The Company is exposed to changes in the fair value of certain of its pools of fixed-rate assets due to changes in benchmark interest rates. The Company may use interest rate swaps to manage its exposure to changes in fair value on these instruments attributable to changes in the designated benchmark interest rate. Interest rate swaps designated as fair value hedges involve the payment of fixed-rate amounts to a counterparty in exchange for the Company receiving variable-rate payments

over the life of the agreements without the exchange of the underlying notional amount. Such derivatives were used to hedge the changes in fair value of certain of its pools of prepayable fixed-rate assets.

    For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income.

    The Company terminated two interest rate swaps with an aggregate notional of $475.0 million during the year ended December 31, 2020. The terminated swaps were due to mature in April and May 2021. The remaining balance of the fair value hedging adjustment included in the carrying amount of the assets previously hedged is being amortized into interest income on a straight-line basis over the remaining lives of the assets previously hedged.

Derivatives Not Designated as Hedges

    The Company has credit derivatives resulting from participation in interest rate swaps provided to external lenders as part of loan participation arrangements which are, therefore, not used to manage interest rate risk in the Company’s assets or liabilities. Additionally, the Company provides interest rate risk management services to commercial customers, primarily interest rate swaps. The Company’s market risk from unfavorable movements in interest rates related to these derivative contracts is economically hedged by concurrently entering into offsetting derivative contracts that have identical notional values, terms and indices.

    Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain lenders which participate in loans and commercial customers.

Fair Values of Derivative Instruments on the Balance Sheet

Amounts included in the Consolidated Balance Sheet related to the fair value of the Company’s derivative instruments are shown below. Asset derivatives depicted below represent derivatives with a positive fair value position, while liability derivatives represent derivatives with a negative fair value position.

	June 30, 2021
	Asset Derivatives				Liability Derivatives
	Notional Amount		Fair Value		Notional Amount		Fair Value
	(in millions)		(In thousands)		(in millions)		(In thousands)
Derivatives designated as hedging instruments:
Interest Rate Swaps	$	1,150	$	24,946	$	2,425	$	84,212
Total derivatives designated as hedging instruments			$	24,946			$	84,212
Derivatives not designated as hedging instruments:
Interest Rate Swaps	$	689	$	24,037	$	689	$	24,037
Other Contracts	—		—		34		146
Total derivatives not designated as hedging instruments			$	24,037			$	24,183
Netting Adjustments (1)			29,802				102,063
Net Derivatives on the Balance Sheet			$	19,181			$	6,332
Cash Collateral (2)			—				—
Net Derivative Amounts			$	19,181			$	6,332

(1) Netting adjustments represents the amounts recorded to convert derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The Chicago Mercantile Exchange (“CME”) legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.

(2) Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The application of collateral cannot reduce the net derivative position below zero. Therefore, excess collateral, if any, is not reflected above.

	December 31, 2020
	Asset Derivatives				Liability Derivatives
	Notional Amount		Fair Value		Notional Amount		Fair Value
	(in millions)		(In thousands)		(in millions)		(In thousands)
Derivatives designated as hedging instruments:
Interest Rate Swaps	$	400	$	1,419	$	2,925	$	115,166
Total derivatives designated as hedging instruments			$	1,419			$	115,166
Derivatives not designated as hedging instruments:
Interest Rate Swaps	$	641	$	34,155	$	641	$	34,155
Other Contracts	—		—		34		217
Total derivatives not designated as hedging instruments			$	34,155			$	34,372
Netting Adjustments (1)			997				149,046
Net Derivatives on the Balance Sheet			$	34,577			$	492
Cash Collateral (2)			—				237
Net Derivative Amounts			$	34,577			$	255

(1) Netting adjustments represents the amounts recorded to convert derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The Chicago Mercantile Exchange (“CME”) legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.

(2) Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The application of collateral cannot reduce the net derivative position below zero. Therefore, excess collateral, if any, is not reflected above.

Effect of Derivative Instruments on Accumulated Other Comprehensive Income (Loss)

The following table presents the effect of the Company’s derivative financial instruments on the Accumulated Comprehensive Income (Loss) for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Cash Flow Hedges - Interest rate swaps
Amount of (loss) gain recognized in other comprehensive income (loss)	$	(13,940)	(17,040)	34,181	(117,401)
Amount of loss reclassified from accumulated other comprehensive income (loss) to interest expense	(10,468)		(6,628)	(20,487)	(8,717)

Location and Amount of Gain or (Loss) Recognized in Income on Fair Value and Cash Flow Hedging Relationships

The following table presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income as of June 30, 2021 and 2020.

		For the Three Months Ended June 30,			For the Six Months Ended June 30,
		2021		2020	2021	2020
The effects of fair value and cash flow hedging:	Income statement location	(In thousands)
Fair Value Hedges - Gain or (loss) on relationships in Subtopic 815-20
Interest contracts
Hedged items	Interest income	$	189	(2,239)	(50)	4,530
Derivatives designated as hedging instruments	Interest income	(210)		(136)	57	(7,324)
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Interest contracts
Amount of loss reclassified from accumulated other comprehensive income (loss)	Interest expense	(10,468)		(6,628)	(20,487)	(8,717)
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) as a result that a forecasted transaction is no longer probable of occurring	Other expense	—		—	—	—
Total amounts of income and expense line items presented in the income statement in which the effects of fair value are recorded		$	(10,489)	(9,003)	(20,480)	(11,511)

There was no fee income related to derivative interest rate swaps executed with commercial loan customers for the three months ended June 30, 2021 and June 30, 2020. Fee income related to derivative interest rate swaps executed with commercial loan customers totaled $1.8 million and $1.0 million for the six months ended June 30, 2021 and June 30, 2020, respectively.

As of June 30, 2021 and December 31, 2020, the following amounts were recorded on the Consolidated Balance Sheets related to cumulative basis adjustment for fair value hedges:

	Carrying Amount of the Hedged Assets/(Liabilities)			Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)
Balance sheet location	June 30, 2021		December 31, 2020	June 30, 2021		December 31, 2020
	(In thousands)
Loans receivable, net (1)(2)	$	149,951	—	$	5,810	8,798

(1) At June 30, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $396.6 million; the cumulative basis adjustments associated with these hedging relationships was $5.8 million; and the amounts of the designated hedged items were $150.0 million.

(2) The balance of Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities) as of June 30, 2021 includes $5.9 million of hedging adjustment on discontinued hedging relationships.

Location and Amount of Gain or (Loss) Recognized in Income on Derivatives Not Designated as Hedging Instruments

The table below presents the effect of the Company’s derivative financial instruments that are not designated as hedging instruments on the Consolidated Statements of Income as of June 30, 2021:

	Consolidated Statements of Income location	Amount of Gain (Loss) Recognized in Income on Derivative
		For the Three Months Ended June 30,			For the Six Months Ended June 30,
		2021		2020	2021	2020
		(In thousands)
Other Contracts	Other income / (expense)	$	(38)	4	71	(125)
Total		$	(38)	4	71	(125)

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Comprehensive Income

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Comprehensive Income

Comprehensive Income

 The components of comprehensive income, gross and net of tax, are as follows:

	Three Months Ended June 30,
	2021				2020
	Gross		Tax	Net	Gross	Tax	Net
	(Dollars in thousands)
Net income	$	109,036	(29,229)	79,807	58,829	(16,218)	42,611
Other comprehensive loss:
Change in funded status of retirement obligations	170		(48)	122	416	(117)	299
Unrealized losses on debt securities available-for-sale	(4,869)		1,161	(3,708)	(1,216)	219	(997)
Accretion of loss on debt securities reclassified to held-to-maturity from available-for-sale	39		(9)	30	73	(17)	56
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	268		(75)	193	385	(108)	277
Net losses on derivatives	(3,472)		976	(2,496)	(10,412)	2,927	(7,485)
Total other comprehensive loss	(7,864)		2,005	(5,859)	(10,754)	2,904	(7,850)
Total comprehensive income	$	101,172	(27,224)	73,948	48,075	(13,314)	34,761

	Six Months Ended June 30,
	2021				2020
	Gross		Tax	Net	Gross	Tax	Net
	(Dollars in thousands)
Net income	$	208,385	(56,303)	152,082	112,988	(30,865)	82,123
Other comprehensive income (loss):
Change in funded status of retirement obligations	338		(95)	243	444	(125)	319
Unrealized (losses) gains on debt securities available-for-sale	(28,919)		6,891	(22,028)	48,193	(11,562)	36,631
Accretion of loss on securities reclassified to held-to-maturity from available-for-sale	80		(19)	61	147	(35)	112
Reclassification adjustment for security gains included in net income	(398)		99	(299)	—	—	—
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	517		(145)	372	635	(178)	457
Net gains (losses) on derivatives	54,668		(15,367)	39,301	(108,684)	30,551	(78,133)
Total other comprehensive income (loss)	26,286		(8,636)	17,650	(59,265)	18,651	(40,614)
Total comprehensive income	$	234,671	(64,939)	169,732	53,723	(12,214)	41,509

The following table presents the after-tax changes in the balances of each component of accumulated other comprehensive loss for the six months ended June 30, 2021 and 2020:

	Change in funded status of retirement obligations		Accretion of loss on debt securities reclassified to held-to-maturity	Unrealized gains on debt securities available-for-sale and gains included in net income	Other-than- temporary impairment accretion on debt securities	Unrealized losses on derivatives	Total accumulated other comprehensive loss
	(Dollars in thousands)
Balance - December 31, 2020	$	(9,485)	(184)	57,204	(9,809)	(77,742)	(40,016)
Net change	243		61	(22,327)	372	39,301	17,650
Balance - June 30, 2021	$	(9,242)	(123)	34,877	(9,437)	(38,441)	(22,366)
Balance - December 31, 2019	$	(6,690)	(386)	29,456	(10,629)	(30,373)	(18,622)
Net change	319		112	36,631	457	(78,133)	(40,614)
Balance - June 30, 2020	$	(6,371)	(274)	66,087	(10,172)	(108,506)	(59,236)

The following table presents information about amounts reclassified from accumulated other comprehensive loss to the consolidated statements of income and the affected line item in the statement where net income is presented.

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Reclassification adjustment for gains included in net income
Gain on securities, net	$	—	—	(398)	—
Change in funded status of retirement obligations
Amortization of net loss	170		299	338	599
Compensation and fringe benefits	170		299	338	599
Reclassification adjustment for unrealized losses on derivatives
Interest expense	10,468		6,092	20,487	8,181
Total before tax	10,638		6,391	20,427	8,780
Income tax expense	(2,852)		(1,762)	(5,527)	(2,398)
Net of tax	$	7,786	4,629	14,900	6,382

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Stockholders’ Equity

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Stockholders’ Equity

Stock Transactions

Stock Repurchase Program

    On October 25, 2018, the Company announced its fourth share repurchase program, which authorized the purchase of 10% of its publicly-held outstanding shares of common stock, or 28,886,780 shares. The fourth program commenced immediately upon completion of the third program on December 10, 2018. This program has no expiration date and has 12,000,202 shares yet to be repurchased as of June 30, 2021.

    During the six months ended June 30, 2021, the Company purchased approximately 1.0 million shares at a cost of $12.0 million, or $12.40 per share. During the six months ended June 30, 2021, shares repurchased include 339,114 shares purchased in connection with the vesting of shares of restricted stock under our 2015 Equity Incentive Plan and the withholding of shares to pay income taxes. These shares are repurchased pursuant to the terms of the 2015 Equity Incentive Plan and therefore are not part of the Company’s repurchase program.

Stockholders’ Equity The changes in the components of stockholders’ equity for the three months ended June 30, 2021 and 2020 are as follows:

	Common stock		Additional paid-in capital	Retained earnings	Treasury stock	Unallocated common stock held by ESOP	Accumulated other comprehensive loss	Total stockholders’ equity
	(In thousands)
Balance at March 31, 2020	$	3,591	2,826,288	1,247,028	(1,353,246)	(77,517)	(51,386)	2,594,758
Net income	—		—	42,611	—	—	—	42,611
Other comprehensive loss, net of tax	—		—	—	—	—	(7,850)	(7,850)
Common stock issued to finance acquisition	28		20,853	—	—	—	—	20,881
Purchase of treasury stock (298,977 shares)	—		—	—	(2,429)	—	—	(2,429)
Treasury stock allocated to restricted stock plan (4,000 shares)	—		(36)	(13)	49	—	—	—
Compensation cost for stock options and restricted stock	—		3,954	—	—	—	—	3,954
Cash dividend paid ($0.12 per common share)	—		—	(30,021)	—	—	—	(30,021)
ESOP shares allocated or committed to be released	—		247	—	—	749	—	996
Balance at June 30, 2020	$	3,619	2,851,306	1,259,605	(1,355,626)	(76,768)	(59,236)	2,622,900
Balance at March 31, 2021	$	3,619	2,860,045	1,376,774	(1,378,858)	(74,521)	(16,507)	2,770,552
Net income	—		—	79,807	—	—	—	79,807
Other comprehensive loss, net of tax	—		—	—	—	—	(5,859)	(5,859)
Purchase of treasury stock (299,838 shares)	—		—	—	(4,343)	—	—	(4,343)
Treasury stock allocated to restricted stock plan (22,823 shares)	—		(335)	49	286	—	—	—
Compensation cost for stock options and restricted stock	—		3,707	—	—	—	—	3,707
Exercise of stock options	—		8	—	3,019	—	—	3,027
Restricted stock forfeitures (12,000 shares)	—		134	12	(146)	—	—	—
Cash dividend paid ($0.14 per common share)	—		—	(34,613)	—	—	—	(34,613)
ESOP shares allocated or committed to be released	—		1,000	—	—	749	—	1,749
Balance at June 30, 2021	$	3,619	2,864,559	1,422,029	(1,380,042)	(73,772)	(22,366)	2,814,027

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Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

    We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Our debt securities available-for-sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record at fair value other assets or liabilities on a non-recurring basis, such as held-to-maturity debt securities, mortgage servicing rights (“MSR”), loans receivable and other real estate owned. These non-recurring fair value adjustments involve the application of lower-of-cost-or-market accounting or write-downs of individual assets. Additionally, in connection with our mortgage banking activities we may have commitments to fund loans held-for-sale and commitments to sell loans, which are considered free-standing derivative instruments, the fair values of which are not material to our financial condition or results of operations.

    In accordance with FASB ASC 820, “Fair Value Measurements and Disclosures”, we group our assets and liabilities at fair value in three levels, based on the markets in which the assets are traded and the reliability of the assumptions used to determine fair value. These levels are:

•Level 1 – Valuation is based upon quoted prices for identical instruments traded in active markets.

•Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.

•Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include the use of option pricing models, discounted cash flow models and similar techniques. The results cannot be determined with precision and may not be realized in an actual sale or immediate settlement of the asset or liability.

    We base our fair values on 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. ASC 820 requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

Assets Measured at Fair Value on a Recurring Basis

Equity securities

    Our equity securities portfolio is carried at estimated fair value on a recurring basis, with any unrealized gains and losses recognized in the Consolidated Statements of Income. The fair values of equity securities are based on quoted market prices (Level 1).

Debt securities available-for-sale

    Our debt securities available-for-sale portfolio is carried at estimated fair value on a recurring basis, with any unrealized gains and losses, net of taxes, reported as accumulated other comprehensive income (loss) in stockholders’ equity. The fair values of debt securities available-for-sale are provided by a third-party pricing service. The pricing service may use quoted market prices of comparable instruments or a variety of other forms of analysis, incorporating inputs that are currently observable in the markets for similar securities (Level 2). Inputs that are often used in the valuation methodologies include, but are not limited to, benchmark yields, credit spreads, default rates, prepayment speeds and non-binding broker quotes. As the Company is responsible for the determination of fair value, a quarterly analysis of the prices received from the pricing service is performed to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. Additionally, the Company compares changes in the reported market values to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and the review of the fair value methodology documentation provided by the independent pricing services has not resulted in material adjustments in the prices obtained from the pricing services.

Derivatives

    Derivatives are reported at fair value utilizing Level 2 inputs. The fair values of interest rate swap and risk participation agreements are based on a valuation model that uses primarily observable inputs, such as benchmark yield curves and interest rate spreads.

The following tables present our assets and liabilities measured at fair value on a recurring basis by level within the valuation hierarchy at June 30, 2021 and December 31, 2020.

	At June 30, 2021
	Total		Level 1	Level 2	Level 3
	(In thousands)
Assets:
Equity securities	$	9,698	9,698	—	—
Debt securities available for sale:
Government-sponsored enterprises	$	4,064	—	4,064	—
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,189,868		—	1,189,868	—
Federal National Mortgage Association	1,188,302		—	1,188,302	—
Government National Mortgage Association	162,181		—	162,181	—
Total debt securities available-for-sale	$	2,544,415	—	2,544,415	—
Interest rate swaps	$	19,181	—	19,181	—
Liabilities:
Derivatives:
Interest rate swaps	$	6,186	—	6,186	—
Other contracts	146		—	146	—
Total derivatives	$	6,332	—	6,332	—

	At December 31, 2020
	Total		Level 1	Level 2	Level 3
	(In thousands)
Assets:
Equity securities	$	36,000	36,000	—	—
Debt securities available for sale:
Debt securities:
Government-sponsored enterprises	4,482		—	4,482	—
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	1,317,052	—	1,317,052	—
Federal National Mortgage Association	1,205,426		—	1,205,426	—
Government National Mortgage Association	231,477		—	231,477	—
Total debt securities available-for-sale	$	2,758,437	—	2,758,437	—
Interest rate swaps	$	34,577	—	34,577	—
Liabilities:
Derivatives:
Interest rate swaps	$	275	—	275	—
Other contracts	217		—	217	—
Total derivatives	$	492	—	492	—

    There have been no changes in the methodologies used at June 30, 2021 from December 31, 2020, and there were no transfers between Level 1 and Level 2 during the six months ended June 30, 2021.

    There were no Level 3 assets measured at fair value on a recurring basis for the six months ended June 30, 2021 and December 31, 2020.

Assets Measured at Fair Value on a Non-Recurring Basis

Mortgage Servicing Rights, Net

    Mortgage servicing rights are carried at the lower of cost or estimated fair value. The estimated fair value of MSR is obtained through independent third-party valuations through an analysis of future cash flows, incorporating assumptions market participants would use in determining fair value including market discount rates, prepayment speeds, servicing income, servicing costs, default rates and other market driven data, including the market’s perception of future interest rate movements. The prepayment speed and the discount rate are considered two of the most significant inputs in the model.  At June 30, 2021, the fair value model used prepayment speeds ranging from 3.17% to 31.20% and a discount rate of 11.32% for the valuation of the mortgage servicing rights. At December 31, 2020, the fair value model used prepayment speeds ranging from 14.46% to 23.58% and a discount rate of 12.03% for the valuation of the mortgage servicing rights. A significant degree of judgment is involved in valuing the mortgage servicing rights using Level 3 inputs. The use of different assumptions could have a significant positive or negative effect on the fair value estimate.

Collateral Dependent Loans

    A collateral dependent loan is a loan for which repayment is expected to be provided substantially through the operation or sale of the collateral. A loan is individually evaluated when it is a collateral dependent commercial loan with an outstanding balance greater than $1.0 million and on non-accrual status, a loan modified in a troubled debt restructuring, or is a commercial loan with $1.0 million in outstanding principal if management has specific information that it is probable they will not collect all amounts due under the contractual terms of the loan agreement. Collateral-dependent loans secured by property are carried at the estimated fair value of the collateral less estimated selling costs. Estimated fair value is calculated using an independent third-party appraiser. In the event the most recent appraisal does not reflect the current market conditions due to the passage of time and other factors, management will obtain an updated appraisal or make downward adjustments to the existing appraised value based on their knowledge of the property, local real estate market conditions, recent real estate transactions, and for estimated selling costs, if applicable. Appraisals were generally discounted in a range of 0% to 25%. Collateral securing a loan may consist of real estate or other property such as equipment or inventory. Collateral securing commercial and industrial loans may include real estate, other property or the operating results of the business. For non-collateral dependent loans, management estimates the fair value using discounted cash flows based on inputs that are largely unobservable and instead reflect management’s own estimates of the assumptions as a market participant would in pricing such loans.

Other Real Estate Owned and Other Repossessed Assets

    Other Real Estate Owned and Other Repossessed Assets are recorded at estimated fair value, less estimated selling costs when acquired, thus establishing a new cost basis. Repossessed assets that are available for lease are included in operating lease equipment reviewed below. Fair value of foreclosed real estate property and other repossessed assets is generally based on independent appraisals. These appraisals include adjustments to comparable assets based on the appraisers’ market knowledge and experience, and are discounted an additional 0% to 25% for estimated costs to sell. When an asset is acquired, the excess of the loan balance over fair value, less estimated selling costs, is charged to the allowance for loan losses. If further declines in the estimated fair value of the asset occur, a writedown is recorded through expense. The valuation of foreclosed and repossessed assets is subjective in nature and may be adjusted in the future because of changes in economic conditions. Operating costs after acquisition are generally expensed.

Operating Lease Equipment

    On an annual basis, the Company reviews the lease residuals and off-lease equipment for potential impairment. Repossessed assets are also available for lease and are included in operating lease equipment reviewed. Operating lease equipment is recorded at estimated fair value, generally determined by independent appraisal. If declines in the estimated fair value of the asset occur, a writedown is recorded through expense.

The following tables provide the level of valuation assumptions used to determine the carrying value of our assets measured at fair value on a non-recurring basis that have changed for the periods ended June 30, 2021 and December 31, 2020. For the three months ended June 30, 2021, there was no change to the carrying value of other real estate owned, collateral dependent loans or operating lease equipment. For the three months ended December 31, 2020, there was no change to the carrying value of other real estate owned or collateral dependent loans.

Security Type	Valuation Technique	Unobservable Input	Range		Weighted Average Input	Carrying Value at June 30, 2021
			Minimum	Maximum		Total		Level 1	Level 2	Level 3
						(In thousands)
MSR, net	Estimated cash flow	Prepayment speeds	3.2%	31.2%	14.76%	$	9,047	—	—	9,047
						$	9,047	—	—	9,047

Security Type	Valuation Technique	Unobservable Input	Range		Weighted Average Input	Carrying Value at December 31, 2020
			Minimum	Maximum		Total		Level 1	Level 2	Level 3
						(In thousands)
MSR, net	Estimated cash flow	Prepayment speeds	14.5%	23.6%	17.76%	$	10,663	—	—	10,663
Operating lease equipment	Market comparable	Lack of marketability	0.0%	10.4%	10.41%	15,007		—	—	15,007
						$	25,670	—	—	25,670

Other Fair Value Disclosures

    Fair value estimates, methods and assumptions for the Company’s financial instruments that are not recorded at fair value on a recurring or non-recurring basis are set forth below.

Cash and Cash Equivalents

    For cash, short-term U.S. Treasury securities and due from banks, the carrying amount approximates fair value.

Debt Securities Held-to-Maturity, net

    Our debt securities held-to-maturity portfolio, consisting primarily of agency mortgage-backed securities and other debt securities for which we have a positive intent and ability to hold to maturity, is carried at amortized cost less any allowance for credit losses. The fair values of for the majority of debt securities held-to-maturity are provided by a third-party pricing service. The pricing service may use quoted market prices of comparable instruments or a variety of other forms of analysis, incorporating inputs that are currently observable in the markets for similar securities (Level 2). Inputs that are often used in the valuation methodologies include, but are not limited to, benchmark yields, credit spreads, default rates, prepayment speeds and non-binding broker quotes. As the Company is responsible for the determination of fair value, a quarterly analysis of the prices received from the pricing service is performed to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. Additionally, the Company compares changes in the reported market values to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and the review of the fair value methodology documentation provided by the independent pricing services has not resulted in material adjustments in the prices obtained from the pricing services. For certain held-to-maturity debt securities that trade in illiquid markets, valuation techniques, which require inputs that are both significant to the fair value measurement and unobservable, are used to determine fair value of the investment. Valuation techniques are based on various assumptions, including, but not limited to forecasted cash flows, discount rates, required rate of return, adjustments for nonperformance and liquidity, and liquidation values (Level 3).

FHLB Stock

    The fair value of the Federal Home Loan Bank of New York (“FHLB”) stock is its carrying value, since this is the amount for which it could be redeemed. There is no active market for FHLB stock. The Bank is required to hold and purchase FHLB stock based upon the balance of mortgage related assets held by the member and the amount of outstanding FHLB advances.

Loans

    Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as residential mortgage and consumer. Each loan category is further segmented into fixed and adjustable rate interest terms and by performing and non-performing categories.

    The fair value estimates are made at a specific point in time based on relevant market information. The fair value estimates do not reflect any premium or discount that could result from offering for sale a particular financial instrument. Fair value estimates are based on judgments regarding future expected loss experience, risk characteristics and economic conditions. These estimates are subjective, involve uncertainties, and cannot be determined with precision.

Loans Held for Sale

    Residential mortgage loans held for sale are recorded at the lower of cost or fair value and are therefore measured at fair value on a non-recurring basis. When available, the Company uses observable secondary market data, including pricing on recent closed market transactions for loans with similar characteristics.

Deposit Liabilities

    The fair value of deposits with no stated maturity, such as savings, checking and money market accounts, is equal to the amount payable on demand. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using rates for currently offered deposits of similar remaining maturities.

Borrowings

    The fair value of borrowings are based on securities dealers’ estimated fair values, when available, or estimated using discounted cash flow analysis. The discount rates used approximate the rates offered for similar borrowings of similar remaining terms.

Commitments to Extend Credit

    The fair value of commitments to extend credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For commitments to originate fixed rate loans, fair value also considers the difference between current levels of interest rates and the committed rates. Due to the short-term nature of our outstanding commitments, the fair values of these commitments are immaterial to our financial condition.

The carrying values and estimated fair values of the Company’s financial instruments are presented in the following table.

	June 30, 2021
	Carrying		Estimated Fair Value
	value		Total	Level 1	Level 2	Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	770,396	770,396	770,396	—	—
Equities	9,698		9,698	9,698	—	—
Debt securities available-for-sale	2,544,415		2,544,415	—	2,544,415	—
Debt securities held-to-maturity, net	1,178,812		1,253,521	—	1,169,778	83,743
FHLB stock	199,826		199,826	199,826	—	—
Loans held for sale	—		—	—	—	—
Net loans	21,082,521		21,108,980	—	—	21,108,980
Derivative financial instruments	19,181		19,181	—	19,181	—
Financial liabilities:
Deposits, other than time deposits	$	17,152,701	17,152,701	17,152,701	—	—
Time deposits	2,286,265		2,287,966	—	2,287,966	—
Borrowed funds	4,033,864		4,084,597	—	4,084,597	—
Derivative financial instruments	6,332		6,332	—	6,332	—

	December 31, 2020
	Carrying		Estimated Fair Value
	value		Total	Level 1	Level 2	Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	170,432	170,432	170,432	—	—
Equities	36,000		36,000	36,000	—	—
Debt securities available-for-sale	2,758,437		2,758,437	—	2,758,437	—
Debt securities held-to-maturity, net	1,247,853		1,320,872	—	1,253,566	67,306
FHLB stock	159,829		159,829	159,829	—	—
Loans held for sale	30,357		30,357	—	30,357	—
Net loans	20,580,451		20,787,917	—	—	20,787,917
Derivative financial instruments	34,577		34,577	—	34,577	—
Financial liabilities:
Deposits, other than time deposits	$	16,807,240	16,807,240	16,807,240	—	—
Time deposits	2,718,179		2,726,230	—	2,726,230	—
Borrowed funds	3,295,790		3,367,491	—	3,367,491	—
Derivative financial instruments	492		492	—	492	—

Limitations

    Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience,

current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

    Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets that are not considered financial assets include deferred tax assets, premises and equipment and bank owned life insurance. Liabilities for pension and other postretirement benefits are not considered financial liabilities. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

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Revenue Recognition

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue Recognition

Revenue Recognition

    The Company’s contracts with customers in the scope of Topic 606, Revenue from Contracts with Customers, are contracts for deposit accounts and contracts for non-deposit investment accounts through a third-party service provider.  Both types of contracts result in non-interest income being recognized.  The revenue resulting from deposit accounts, which includes fees such as insufficient funds fees, wire transfer fees and out-of-network ATM transaction fees, is included as a component of fees and service charges on the Consolidated Statements of Income.  The revenue resulting from non-deposit investment accounts is included as a component of other income on the Consolidated Statements of Income. 

Revenue from contracts with customers included in fees and service charges and other income was as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(Dollars in thousands)
Revenue from contracts with customers included in:
Fees and service charges	$	3,733	2,908	7,331	6,858
Other income	4,630		1,965	9,203	4,984
Total revenue from contracts with customers	$	8,363	4,873	16,534	11,842

    For our contracts with customers, we satisfy our performance obligations each day as services are rendered.  For our deposit account revenue, we receive payment on a daily basis as services are rendered and for our non-deposit investment account revenue, we receive payment on a monthly basis from our third-party service provider as services are rendered.

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Recent Accounting Pronouncements

6 Months Ended

Jun. 30, 2021

Accounting Changes and Error Corrections [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Standard	Description	Required date of adoption	Effect on Consolidated Financial Statements
Standards Adopted in 2021
Codification Improvements	The amendments include all disclosure guidance in the Disclosure Section to reduce the potential that disclosure requirements would be missed.	January 1, 2021	The amendments in ASU 2020-10 do not change current GAAP. The update did not impact the Company’s Consolidated Financial Statements.
Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs	The amendments in this update clarify guidance as to whether a callable debt security with multiple call dates is within the scope of paragraph 310-20-35-33.	January 1, 2021	The amendments in ASU 2020-08 will be applied under a prospective approach. The adoption of this ASU did not have a material impact on the Company’s Consolidated Financial Statements.
Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815): Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Emerging Issues Task Force)	This update clarifies the application of the alternative provided in ASU 2016-01 to measure certain equity securities without a readily determinable fair value. The amendments in this update clarify that a company should consider observable transactions that require it to either apply or discontinue the equity method of accounting under Topic 323 for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. The amendments further provide clarification related to the accounting for certain forward contracts and purchased options.	January 1, 2021	The amendments in ASU 2020-01 will be applied prospectively. The Company does not currently apply the measurement alternative in Topic 321 to any of its investments and the update did not have a material impact on the Company’s Consolidated Financial Statements.
Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes	The amendments simplify the accounting for income taxes by removing certain exceptions to general principles in Topic 740 and also clarify and amend existing guidance.	January 1, 2021	The Company adopted ASU 2019-12 with no material impact on its Consolidated Financial Statements.
Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans.	The amendments in this update modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans by removing disclosures that no longer are considered cost beneficial, clarifying the specific requirements of disclosures, and adding disclosure requirements identified as relevant.	January 1, 2021	ASU 2018-14 will be applied under a retrospective approach to disclosures with regard to the Company’s employee benefit plans. The adoption of this update did not have a material impact on the Company’s Consolidated Financial Statements.
Standards Not Yet Adopted
Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity	The amendments simplify the accounting for certain financial instruments with the characteristics of liabilities and equity by reducing the number of models for convertible debt instruments and convertible preferred stock and amends how convertible instruments and equity contracts with an option to be settled in cash or shares affect the EPS calculation.	January 1, 2022 Early adoption permitted not earlier than fiscal years beginning 2021	The amendments are to be applied under either a modified retrospective or a fully retrospective approach. The update is not expected to have a material impact on the Company’s Consolidated Financial Statements.

Standard	Description	Required date of adoption	Effect on Consolidated Financial Statements
Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	The amendments provide expedients and exceptions for applying GAAP to contracts or hedging relationships affected by the discontinuance of LIBOR as a benchmark rate to alleviate the burden and cost of such modifications. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments also provide a one-time election to sell and/or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform.	Effective for a limited time as of March 12, 2020 through December 31, 2022	The Company continues to evaluate its financial instruments indexed to USD-LIBOR for which Topic 848 provides expedients, exceptions and elections. The Company has established a crossfunctional team to develop transition plans to address potential revisions to documentation, as well as customer management and communication, internal training, financial, operational and risk management implications, and legal and contract management. In addition, the Company has engaged with its regulators and with industry working groups and trade associations to develop strategies for transitioning away from LIBOR.
Reference Rate Reform (Topic 848)	The update specifically addresses whether Topic 848 applies to derivative instruments that do not reference a rate that is expected to be discontinued but that instead use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform, commonly referred to as the “discounting transition.” This ASU extends certain optional expedients provided in Topic 848 to contract modifications and derivatives affected by the discounting transition.	Effective for a limited time as of March 12, 2020 through December 31, 2022	The amendments in ASU 2021-01 may be applied under a retrospective approach as of any date from the beginning of an interim period that includes or is after March 12, 2020 or prospectively to new modifications made on or after any date within the interim period including January 7, 2021. The Update is not expected to have a material impact on the Company’s Consolidated Financial Statements.

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Subsequent Events

6 Months Ended

Jun. 30, 2021

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

    As defined in FASB ASC 855, “Subsequent Events”, subsequent events are events or transactions that occur after the balance sheet date but before financial statements are issued or available to be issued. Financial statements are considered issued when they are widely distributed to stockholders and other financial statement users for general use and reliance in a form and format that complies with U.S. GAAP.

Dividend

    On July 28, 2021, the Company declared a cash dividend of $0.14 per share. The $0.14 dividend per share will be paid to stockholders on August 25, 2021, with a record date of August 10, 2021.

Citizens Financial Group, Inc. Merger Agreement

On July 28, 2021, Citizens Financial Group, Inc. (“Citizens”) and the Company announced that they have entered into a definitive agreement and plan of merger under which Citizens will acquire all of the outstanding shares of the Company for a combination of stock and cash. Under the terms of the agreement and plan of merger, shareholders of the Company will receive 0.297 of a share of Citizens common stock and $1.46 in cash for each share of the Company they own. Following completion of the transaction, former shareholders of the Company will collectively own approximately 14% of the combined company. The implied total transaction value based on closing prices on July 27, 2021 is approximately $3.5 billion.

The agreement and plan of merger has been unanimously approved by the boards of directors of each company and the transaction is expected to close in the first or second quarter of 2022, subject to approval by the shareholders of the Company, receipt of required regulatory approvals and other customary closing conditions.

FDIC Approval of Acquisition of Berkshire Bank Branches

During July 2021, the Bank received approval from the FDIC for the previously announced purchase of Berkshire Bank’s New Jersey and eastern Pennsylvania branches. The Bank expects to complete the transaction on August 27, 2021.

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Summary of Significant Accounting Principles (Policies)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

    The consolidated financial statements are comprised of the accounts of Investors Bancorp, Inc. and its wholly owned subsidiary, Investors Bank (the “Bank”) and the Bank’s wholly-owned subsidiaries (collectively, the “Company”). All significant intercompany transactions have been eliminated in consolidation. In the opinion of management, all the adjustments (consisting of normal and recurring adjustments) necessary for the fair presentation of the consolidated financial condition and the consolidated results of operations for the unaudited periods presented have been included. The results of operations and other data presented for the three and six months ended June 30, 2021 are not necessarily indicative of the results of operations that may be expected for subsequent periods or the full year results.

    Certain information and note disclosures usually included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for the preparation of the Form 10-Q. The consolidated financial statements presented should be read in conjunction with the Company’s audited consolidated financial statements and notes to the audited consolidated financial statements included in the Company’s December 31, 2020 Annual Report on Form 10-K. Certain reclassifications have been made in the consolidated financial statements to conform with current year classifications.

The accounting and reporting policies of the Company conform to U.S. GAAP and to general practice within the financial services industry. A discussion of these policies can be found in Note 1, Summary of Significant Accounting Policies, included in the Company’s 2020 Annual Report on Form 10-K. There have been no changes to the Company’s significant accounting policies since December 31, 2020.

Recent Accounting Pronouncements

Standard	Description	Required date of adoption	Effect on Consolidated Financial Statements
Standards Adopted in 2021
Codification Improvements	The amendments include all disclosure guidance in the Disclosure Section to reduce the potential that disclosure requirements would be missed.	January 1, 2021	The amendments in ASU 2020-10 do not change current GAAP. The update did not impact the Company’s Consolidated Financial Statements.
Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs	The amendments in this update clarify guidance as to whether a callable debt security with multiple call dates is within the scope of paragraph 310-20-35-33.	January 1, 2021	The amendments in ASU 2020-08 will be applied under a prospective approach. The adoption of this ASU did not have a material impact on the Company’s Consolidated Financial Statements.
Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815): Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Emerging Issues Task Force)	This update clarifies the application of the alternative provided in ASU 2016-01 to measure certain equity securities without a readily determinable fair value. The amendments in this update clarify that a company should consider observable transactions that require it to either apply or discontinue the equity method of accounting under Topic 323 for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. The amendments further provide clarification related to the accounting for certain forward contracts and purchased options.	January 1, 2021	The amendments in ASU 2020-01 will be applied prospectively. The Company does not currently apply the measurement alternative in Topic 321 to any of its investments and the update did not have a material impact on the Company’s Consolidated Financial Statements.
Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes	The amendments simplify the accounting for income taxes by removing certain exceptions to general principles in Topic 740 and also clarify and amend existing guidance.	January 1, 2021	The Company adopted ASU 2019-12 with no material impact on its Consolidated Financial Statements.
Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans.	The amendments in this update modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans by removing disclosures that no longer are considered cost beneficial, clarifying the specific requirements of disclosures, and adding disclosure requirements identified as relevant.	January 1, 2021	ASU 2018-14 will be applied under a retrospective approach to disclosures with regard to the Company’s employee benefit plans. The adoption of this update did not have a material impact on the Company’s Consolidated Financial Statements.
Standards Not Yet Adopted
Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity	The amendments simplify the accounting for certain financial instruments with the characteristics of liabilities and equity by reducing the number of models for convertible debt instruments and convertible preferred stock and amends how convertible instruments and equity contracts with an option to be settled in cash or shares affect the EPS calculation.	January 1, 2022 Early adoption permitted not earlier than fiscal years beginning 2021	The amendments are to be applied under either a modified retrospective or a fully retrospective approach. The update is not expected to have a material impact on the Company’s Consolidated Financial Statements.

Standard	Description	Required date of adoption	Effect on Consolidated Financial Statements
Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	The amendments provide expedients and exceptions for applying GAAP to contracts or hedging relationships affected by the discontinuance of LIBOR as a benchmark rate to alleviate the burden and cost of such modifications. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments also provide a one-time election to sell and/or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform.	Effective for a limited time as of March 12, 2020 through December 31, 2022	The Company continues to evaluate its financial instruments indexed to USD-LIBOR for which Topic 848 provides expedients, exceptions and elections. The Company has established a crossfunctional team to develop transition plans to address potential revisions to documentation, as well as customer management and communication, internal training, financial, operational and risk management implications, and legal and contract management. In addition, the Company has engaged with its regulators and with industry working groups and trade associations to develop strategies for transitioning away from LIBOR.
Reference Rate Reform (Topic 848)	The update specifically addresses whether Topic 848 applies to derivative instruments that do not reference a rate that is expected to be discontinued but that instead use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform, commonly referred to as the “discounting transition.” This ASU extends certain optional expedients provided in Topic 848 to contract modifications and derivatives affected by the discounting transition.	Effective for a limited time as of March 12, 2020 through December 31, 2022	The amendments in ASU 2021-01 may be applied under a retrospective approach as of any date from the beginning of an interim period that includes or is after March 12, 2020 or prospectively to new modifications made on or after any date within the interim period including January 7, 2021. The Update is not expected to have a material impact on the Company’s Consolidated Financial Statements.

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Business Combinations (Tables)

6 Months Ended

Jun. 30, 2021

Business Combination and Asset Acquisition [Abstract]

Summarizes the estimated fair values of the assets acquired and liabilities

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the date of acquisition for Gold Coast, net of cash consideration paid:

	At April 3, 2020
	(In millions)
Cash and cash equivalents	$	7.3
Debt securities available-for-sale	51.5
Debt securities held to maturity	8.4
Loans receivable, net	443.5
Accrued interest receivable	1.3
Right-of-use assets	3.7
Net deferred tax asset	3.9
Intangible assets	14.5
Other assets	1.2
Total assets acquired	535.3
Deposits	489.9
Borrowed funds	14.9
Other liabilities	9.7
Total liabilities assumed	514.5
Net assets acquired	$	20.8

Summary of purchased loans for credit quality carrying amount

the Company has purchased loans which have been determined to be PCD. The carrying amount of those loans was as follows:

	At April 3, 2020
	(In millions)
Purchase price of loans at acquisition	$	244.7
Allowance for credit losses at acquisition	4.2
Non-credit discount at acquisition	2.6
Par value of acquired loans at acquisition	$	251.5

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Summary of our earnings per share calculations and reconciliation of basic to diluted earnings per share

The following is a summary of our earnings per share calculations and reconciliation of basic to diluted earnings per share.

	For the Three Months Ended June 30,
	2021		2020
	(Dollars in thousands, except per share data)
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$	79,807	$	42,611
Shares
Weighted-average common shares outstanding - basic	235,045,023		236,248,296
Effect of dilutive common stock equivalents (1)	1,452,513		133,807
Weighted-average common shares outstanding - diluted	236,497,536		236,382,103
Earnings per common share
Basic	$	0.34	$	0.18
Diluted	$	0.34	$	0.18

(1) For the three months ended June 30, 2021 and 2020, there were 12,437 and 7,442,906 equity awards, respectively, that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented.

	For the Six Months Ended June 30,
	2021		2020
	(Dollars in thousands, except per share data)
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$	152,082	$	82,123
Shares
Weighted-average common shares outstanding - basic	234,854,494		234,755,591
Effect of dilutive common stock equivalents (1)	1,081,685		171,829
Weighted-average common shares outstanding - diluted	235,936,179		234,927,420
Earnings per common share
Basic	$	0.65	$	0.35
Diluted	$	0.64	$	0.35

(1) For the six months ended June 30, 2021 and 2020, there were 207,128 and 6,378,766 equity awards, respectively, that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented.

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Securities (Tables)

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of disaggregated net gains and losses on equity securities

The following table presents the disaggregated net gains and losses on equity securities reported in the Consolidated Statements of Income:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Unrealized gains recognized on equity securities	$	73	28	784	107
Net gains (losses) recognized on equity securities sold	210		—	(248)	—
Net gains recognized on equity securities	$	283	28	536	107

Summary of securities

The following tables present the amortized cost, gross unrealized gains and losses, and estimated fair value for available-for-sale debt securities and the amortized cost, net unrealized losses, carrying value, gross unrecognized gains and losses, estimated fair value and allowance for credit losses for held-to-maturity debt securities as of the dates indicated.

	At June 30, 2021
	Amortized cost		Gross unrealized gains	Gross unrealized losses	Estimated fair value
	(In thousands)
Available-for-sale:
Debt securities:
Government-sponsored enterprises	$	3,870	194	—	4,064
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,169,804		22,844	2,780	1,189,868
Federal National Mortgage Association	1,165,272		27,310	4,280	1,188,302
Government National Mortgage Association	159,671		2,998	488	162,181
Total mortgage-backed securities available-for-sale	2,494,747		53,152	7,548	2,540,351
Total debt securities available-for-sale	$	2,498,617	53,346	7,548	2,544,415

	At June 30, 2021
	Amortized cost		Net unrealized losses (1)	Carrying value	Gross unrecognized gains (2)	Gross unrecognized losses (2)	Estimated fair value
	(In thousands)
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	$	133,579	—	133,579	3,129	2,112	134,596
Municipal bonds	212,706		—	212,706	14,012	11	226,707
Corporate and other debt securities	146,150		13,127	133,023	36,879	240	169,662
Total debt securities held-to-maturity	492,435		13,127	479,308	54,020	2,363	530,965
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	293,877		44	293,833	6,420	2,309	297,944
Federal National Mortgage Association	377,418		117	377,301	15,996	325	392,972
Government National Mortgage Association	30,449		—	30,449	1,191	—	31,640
Total mortgage-backed securities held-to-maturity	701,744		161	701,583	23,607	2,634	722,556
Total debt securities held-to-maturity	$	1,194,179	13,288	1,180,891	77,627	4,997	1,253,521
Allowance for credit losses				2,079
Total debt securities held-to-maturity, net of allowance for credit losses				1,178,812

(1) Net unrealized losses of held-to-maturity corporate and other debt securities represent the other than temporary impairment related to other non-credit factors recorded prior to the adoption of the current expected credit losses accounting standard on January 1, 2020 that is being amortized through accumulated other comprehensive income over the remaining life of the securities. For mortgage-backed securities, it represents the net loss on previously designated available-for-sale debt securities transferred to held-to-maturity at fair value and is being amortized through accumulated other comprehensive income over the remaining life of the securities.

(2) Unrecognized gains and losses of held-to-maturity debt securities are not reflected in the financial statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other than temporary impairment charge is recognized on a held-to-maturity security, through the date of the balance sheet. Effective January 1, 2020, held-to-maturity debt securities are evaluated for credit losses to determine if an allowance is necessary. Any allowance required is recorded through the provision for credit losses.

	At December 31, 2020
	Amortized cost		Gross unrealized gains	Gross unrealized losses	Estimated fair value
	(In thousands)
Available-for-sale:
Debt securities:
Government-sponsored enterprises	$	4,260	222	—	4,482
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,286,195		30,930	73	1,317,052
Federal National Mortgage Association	1,167,057		38,568	199	1,205,426
Government National Mortgage Association	225,810		5,700	33	231,477
Total mortgage-backed securities available-for-sale	2,679,062		75,198	305	2,753,955
Total debt securities available-for-sale	$	2,683,322	75,420	305	2,758,437

	At December 31, 2020
	Amortized cost		Net unrealized losses (1)	Carrying value	Gross unrecognized gains (2)	Gross unrecognized losses (2)	Estimated fair value
	(In thousands)
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	$	109,016	—	109,016	4,107	709	112,414
Municipal bonds	246,601		—	246,601	14,990	—	261,591
Corporate and other debt securities	144,209		13,644	130,565	20,033	885	149,713
Total debt securities held-to-maturity	499,826		13,644	486,182	39,130	1,594	523,718
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	308,285		66	308,219	9,733	266	317,686
Federal National Mortgage Association	413,601		175	413,426	20,905	—	434,331
Government National Mortgage Association	43,290		—	43,290	1,847	—	45,137
Total mortgage-backed securities held-to-maturity	765,176		241	764,935	32,485	266	797,154
Total debt securities held-to-maturity	$	1,265,002	13,885	1,251,117	71,615	1,860	1,320,872
Allowance for credit losses				3,264
Total debt securities held-to-maturity, net of allowance for credit losses				1,247,853

(1) Net unrealized losses of held-to-maturity corporate and other debt securities represent the other than temporary impairment related to other non-credit factors recorded prior to the adoption of the current expected credit losses accounting standard on January 1, 2020 that is being amortized through accumulated other comprehensive income over the remaining life of the securities. For mortgage-backed securities, it represents the net loss on previously designated available-for-sale debt securities transferred to held-to-maturity at fair value and is being amortized through accumulated other comprehensive income over the remaining life of the securities.

(2) Unrecognized gains and losses of held-to-maturity debt securities are not reflected in the financial statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other than temporary impairment charge is recognized on a held-to-maturity security, through the date of the balance sheet. Effective January 1, 2020, held-to-maturity debt securities are evaluated for credit losses to determine if an allowance is necessary. Any allowance required is recorded through the provision for credit losses.

Schedule of gross unrealized losses on debt securities and the estimated fair value of the related securities, aggregated by investment category

Gross unrealized losses on debt securities and the estimated fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2021 and December 31, 2020, were as follows:

	June 30, 2021
	Less than 12 months			12 months or more		Total
	Estimated fair value		Unrealized losses	Estimated fair value	Unrealized losses	Estimated fair value	Unrealized losses
	(In thousands)
Available-for-sale:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	178,126	2,780	—	—	178,126	2,780
Federal National Mortgage Association	316,984		4,244	98,285	36	415,269	4,280
Government National Mortgage Association	32,773		488	—	—	32,773	488
Total debt securities available-for-sale	527,883		7,512	98,285	36	626,168	7,548
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	89,991		2,112	—	—	89,991	2,112
Municipal bonds	3,123		11	—	—	3,123	11
Corporate and other debt securities	6,789		240	—	—	6,789	240
Total debt securities held-to-maturity	99,903		2,363	—	—	99,903	2,363
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	116,358		2,309	—	—	116,358	2,309
Federal National Mortgage Association	41,064		325	—	—	41,064	325
Total mortgage-backed securities held-to-maturity	157,422		2,634	—	—	157,422	2,634
Total debt securities held-to-maturity	257,325		4,997	—	—	257,325	4,997
Total	$	785,208	12,509	98,285	36	883,493	12,545

	December 31, 2020
	Less than 12 months			12 months or more		Total
	Estimated fair value		Unrealized losses	Estimated fair value	Unrealized losses	Estimated fair value	Unrealized losses
	(In thousands)
Available-for-sale:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	60,502	73	—	—	60,502	73
Federal National Mortgage Association	123,329		199	—	—	123,329	199
Government National Mortgage Association	9,062		33	—	—	9,062	33
Total debt securities available-for-sale	192,893		305	—	—	192,893	305
Held-to-maturity:
Debt securities:
Government-sponsored enterprises	66,558		709	—	—	66,558	709
Corporate and other debt securities	15,038		885	—	—	15,038	885
Total debt securities held-to-maturity	81,596		1,594	—	—	81,596	1,594
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	40,013		266	—	—	40,013	266
Total debt securities held-to-maturity	121,609		1,860	—	—	121,609	1,860
Total	$	314,502	2,165	—	—	314,502	2,165

Summary of amortized cost and estimated fair value of debt securities by contract maturity

Excluding the allowance for credit losses, the amortized cost and estimated fair value of debt securities other than mortgage-backed securities at June 30, 2021, by contractual maturity, are shown below. 

	June 30, 2021
	Carrying value		Estimated fair value
	(In thousands)
Due in one year or less	$	10,489	10,506
Due after one year through five years	9,480		9,641
Due after five years through ten years	164,615		168,579
Due after ten years	298,594		346,303
Total	$	483,178	535,029

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Loans Receivable, Net (Tables)

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Schedule of loan portfolio

The detail of the loan portfolio as of June 30, 2021 and December 31, 2020 was as follows:

	June 30, 2021		December 31, 2020
	(In thousands)
Multi-family loans	$	7,566,131	7,122,840
Commercial real estate loans	4,968,393		4,947,212
Commercial and industrial loans	3,766,551		3,575,641
Construction loans	464,887		404,367
Total commercial loans	16,765,962		16,050,060
Residential mortgage loans	3,887,917		4,119,894
Consumer and other loans	712,147		702,801
Total loans	21,366,026		20,872,755
Deferred fees, premiums and accretable purchase accounting adjustments, net	(13,391)		(9,318)
Allowance for credit losses	(270,114)		(282,986)
Net loans	$	21,082,521	20,580,451

Schedule of financing receivable credit quality indicators

The following table presents the risk category of loans as of June 30, 2021 by class of loan and vintage year:

	Term Loans by Origination Year
	2021		2020	2019	2018	2017	Prior	Revolving Loans	Total
	(In thousands)
Multi-family
Pass	$	1,218,746	980,598	496,911	785,223	497,921	1,585,057	8,647	5,573,103
Watch	28,615		11,443	135,748	398,023	149,954	514,744	1,340	1,239,867
Special mention	—		—	3,555	71,712	43,175	198,600	—	317,042
Substandard	—		—	10,792	16,627	20,879	385,930	1,891	436,119
Total Multi-family	1,247,361		992,041	647,006	1,271,585	711,929	2,684,331	11,878	7,566,131
Commercial real estate
Pass	409,645		504,617	665,215	554,071	431,283	1,365,363	29,199	3,959,393
Watch	4,585		92,727	109,093	153,269	63,295	200,688	5,199	628,856
Special mention	—		383	7,076	5,247	15,135	109,529	2,846	140,216
Substandard	—		—	—	18,065	45,201	176,662	—	239,928
Total Commercial real estate	414,230		597,727	781,384	730,652	554,914	1,852,242	37,244	4,968,393
Commercial and industrial
Pass	462,248		858,426	573,325	290,068	162,082	454,686	287,706	3,088,541
Watch	7,329		34,038	88,129	40,783	21,319	48,986	41,315	281,899
Special mention	—		16,113	133,747	55,574	12,822	81,686	1,500	301,442
Substandard	—		4,004	3,783	3,948	46,635	31,781	4,518	94,669
Total Commercial and industrial	469,577		912,581	798,984	390,373	242,858	617,139	335,039	3,766,551
Construction
Pass	27,362		131,479	55,821	—	—	—	189,074	403,736
Watch	—		6,950	—	—	—	—	—	6,950
Special mention	—		—	5,350	23,375	—	—	25,476	54,201
Substandard	—		—	—	—	—	—	—	—
Total Construction	27,362		138,429	61,171	23,375	—	—	214,550	464,887
Residential mortgage
Pass	652,580		557,707	321,108	287,958	369,500	1,570,083	—	3,758,936
Watch	—		810	10,711	11,263	11,925	43,340	—	78,049
Special mention	—		—	—	734	—	3,075	—	3,809
Substandard	—		—	1,523	1,933	1,852	41,723	92	47,123
Total residential mortgage	652,580		558,517	333,342	301,888	383,277	1,658,221	92	3,887,917
Consumer and other
Pass	2,076		2,811	4,443	4,695	11,183	43,565	633,223	701,996
Watch	—		—	37	137	2,057	511	4,288	7,030
Special mention	—		—	—	—	—	7	1,148	1,155
Substandard	—		—	—	1	337	1,140	488	1,966
Total Consumer and other	2,076		2,811	4,480	4,833	13,577	45,223	639,147	712,147
All classes
Pass	2,772,657		3,035,638	2,116,823	1,922,015	1,471,969	5,018,754	1,147,849	17,485,705
Watch	40,529		145,968	343,718	603,475	248,550	808,269	52,142	2,242,651
Special mention	—		16,496	149,728	156,642	71,132	392,897	30,970	817,865
Substandard	—		4,004	16,098	40,574	114,904	637,236	6,989	819,805
Total loans	$	2,813,186	3,202,106	2,626,367	2,722,706	1,906,555	6,857,156	1,237,950	21,366,026

The following table presents the risk category of loans as of December 31, 2020 by class of loan and vintage year:

	Term Loans by Origination Year
	2020		2019	2018	2017	2016	Prior	Revolving Loans	Total
	(In thousands)
Multi-family
Pass	$	1,002,259	515,446	912,910	601,440	850,781	1,199,133	6,986	5,088,955
Watch	21,366		153,404	374,363	135,348	299,413	220,668	—	1,204,562
Special mention	4,560		—	86,119	32,506	48,020	205,916	—	377,121
Substandard	—		7,285	8,436	17,580	139,975	277,535	1,391	452,202
Total Multi-family	1,028,185		676,135	1,381,828	786,874	1,338,189	1,903,252	8,377	7,122,840
Commercial real estate
Pass	529,244		684,807	646,708	461,097	495,822	1,081,512	32,509	3,931,699
Watch	87,137		132,932	117,598	74,379	61,794	165,702	3,428	642,970
Special mention	375		6,988	5,279	13,295	51,880	71,745	250	149,812
Substandard	—		—	8,212	40,024	29,488	144,758	249	222,731
Total Commercial real estate	616,756		824,727	777,797	588,795	638,984	1,463,717	36,436	4,947,212
Commercial and industrial
Pass	1,007,949		619,275	328,917	156,596	176,557	348,278	203,302	2,840,874
Watch	49,208		115,888	43,791	48,230	28,708	34,697	31,931	352,453
Special mention	16,813		111,399	48,887	14,770	14,102	76,554	798	283,323
Substandard	—		6,128	8,236	42,297	4,341	22,707	15,282	98,991
Total Commercial and industrial	1,073,970		852,690	429,831	261,893	223,708	482,236	251,313	3,575,641
Construction
Pass	85,915		58,041	23,375	—	—	—	197,437	364,768
Watch	6,891		5,350	—	—	—	—	—	12,241
Special mention	—		—	15,228	—	—	—	—	15,228
Substandard	—		—	—	—	—	—	12,130	12,130
Total Construction	92,806		63,391	38,603	—	—	—	209,567	404,367
Residential mortgage
Pass	556,761		450,363	425,617	530,676	407,201	1,601,457	—	3,972,075
Watch	809		12,929	13,465	14,704	8,517	44,299	—	94,723
Special mention	—		—	584	—	—	3,402	—	3,986
Substandard	—		1,523	1,972	1,336	246	43,936	97	49,110
Total residential mortgage	557,570		464,815	441,638	546,716	415,964	1,693,094	97	4,119,894
Consumer and other
Pass	5,031		6,853	5,693	7,448	6,692	57,103	601,481	690,301
Watch	—		39	137	56	156	440	7,655	8,483
Special mention	—		—	—	—	—	292	1,184	1,476
Substandard	—		—	—	—	—	1,796	745	2,541
Total Consumer and other	5,031		6,892	5,830	7,504	6,848	59,631	611,065	702,801
All classes
Pass	3,187,159		2,334,785	2,343,220	1,757,257	1,937,053	4,287,483	1,041,715	16,888,672
Watch	165,411		420,542	549,354	272,717	398,588	465,806	43,014	2,315,432
Special mention	21,748		118,387	156,097	60,571	114,002	357,909	2,232	830,946
Substandard	—		14,936	26,856	101,237	174,050	490,732	29,894	837,705
Total loans	$	3,374,318	2,888,650	3,075,527	2,191,782	2,623,693	5,601,930	1,116,855	20,872,755

Schedule of payment status of the recorded investment in past due loans

The following tables present the payment status of the recorded investment in past due loans as of June 30, 2021 and December 31, 2020 by class of loans:

	June 30, 2021
	30-59 Days		60-89 Days	Greater than 90 Days	Total Past Due	Current	Total Loans Receivable
	(In thousands)
Commercial loans:
Multi-family	$	16,228	11,126	13,161	40,515	7,525,616	7,566,131
Commercial real estate	717		628	6,395	7,740	4,960,653	4,968,393
Commercial and industrial	14,538		40	3,111	17,689	3,748,862	3,766,551
Construction	—		—	—	—	464,887	464,887
Total commercial loans	31,483		11,794	22,667	65,944	16,700,018	16,765,962
Residential mortgage	8,510		4,118	28,193	40,821	3,847,096	3,887,917
Consumer and other	4,590		1,155	1,447	7,192	704,955	712,147
Total	$	44,583	17,067	52,307	113,957	21,252,069	21,366,026

	December 31, 2020
	30-59 Days		60-89 Days	Greater than 90 Days	Total Past Due	Current	Total Loans Receivable
	(In thousands)
Commercial loans:
Multi-family	$	7,421	—	32,884	40,305	7,082,535	7,122,840
Commercial real estate	12,805		2,450	6,356	21,611	4,925,601	4,947,212
Commercial and industrial	986		3,116	1,769	5,871	3,569,770	3,575,641
Construction	—		—	—	—	404,367	404,367
Total commercial loans	21,212		5,566	41,009	67,787	15,982,273	16,050,060
Residential mortgage	13,768		4,258	29,124	47,150	4,072,744	4,119,894
Consumer and other	5,645		1,476	1,984	9,105	693,696	702,801
Total	$	40,625	11,300	72,117	124,042	20,748,713	20,872,755

Schedule of non-accrual loans status

The following table presents non-accrual loans at the dates indicated:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Non-accrual:
Multi-family	11	$	16,557	15	$	35,567
Commercial real estate	24	13,027		29	15,894
Commercial and industrial	13	5,200		21	9,212
Construction	—	—		—	—
Total commercial loans	48	34,784		65	60,673
Residential mortgage and consumer	232	42,823		246	46,452
Total non-accrual loans	280	$	77,607	311	$	107,125

The following table presents individually evaluated collateral-dependent loans by class of loans at the dates indicated:

	June 30, 2021				December 31, 2020
	Real Estate		Other	Total	Real Estate		Other	Total
	(Dollars in thousands)
Multi-family	$	13,923	—	13,923	$	31,484	—	31,484
Commercial real estate	7,456		—	7,456	8,758		—	8,758
Commercial and industrial	2,645		430	3,075	2,994		3,549	6,543
Construction	—		—	—	—		—	—
Total commercial loans	24,024		430	24,454	43,236		3,549	46,785
Residential mortgage and consumer	23,298		91	23,389	25,158		103	25,261
Total collateral-dependent loans	$	47,322	521	47,843	$	68,394	3,652	72,046

As of June 30, 2021 and December 31, 2020, these loans are comprised of the following:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
TDR with payment status current classified as non-accrual:
Commercial real estate	3	$	4,360	3	$	3,907
Residential mortgage and consumer	31	5,094		32	5,634
Total TDR with payment status current classified as non-accrual	34	$	9,454	35	$	9,541

The following table presents TDR loans which were also 30-89 days delinquent and classified as non-accrual at the dates indicated:

	June 30, 2021			December 31, 2020
	# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
TDR 30-89 days delinquent classified as non-accrual:
Commercial real estate	1	$	170	1	$	1,780
Residential mortgage and consumer	8	327		10	942
Total TDR 30-89 days delinquent classified as non-accrual	9	$	497	11	$	2,722

Schedule of troubled debt restructured loans

The following tables present the total TDR loans at June 30, 2021 and December 31, 2020:

	June 30, 2021
	Accrual			Non-accrual			Total
	# of loans	Amount		# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Commercial loans:
Commercial real estate	—	$	—	4	$	4,530	4	$	4,530
Commercial and industrial	1	430		—	—		1	430
Total commercial loans	1	430		4	4,530		5	4,960
Residential mortgage and consumer	48	8,880		76	14,509		124	23,389
Total	49	$	9,310	80	$	19,039	129	$	28,349

	December 31, 2020
	Accrual			Non-accrual			Total
	# of loans	Amount		# of loans	Amount		# of loans	Amount
	(Dollars in thousands)
Commercial loans:
Commercial real estate	—	$	—	4	$	5,687	4	$	5,687
Commercial and industrial	2	630		2	2,919		4	3,549
Total commercial loans	2	630		6	8,606		8	9,236
Residential mortgage and consumer	45	8,602		83	16,659		128	25,261
Total	47	$	9,232	89	$	25,265	136	$	34,497

Schedule of troubled debt restructuring

The following tables present information about TDRs that occurred during the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment		Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings:
Commercial real estate	1	$	170	$	170	1	$	1,330	$	1,330
Residential mortgage and consumer	4	226		226		—	—		—

	Six Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment		Number of Loans	Pre-modification Recorded Investment		Post- modification Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings:
Commercial real estate	1	$	170	$	170	1	$	1,330	$	1,330
Commercial and industrial	—	—		—		1	933		933
Residential mortgage and consumer	4	226		226		—	—		—

Schedule of troubled debt restructuring, interest yield

The following table presents information about pre and post modification interest yield for TDRs which occurred during the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield		Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield
Troubled Debt Restructurings:
Commercial real estate	1	6.00	%	6.00	%	1	3.88	%	3.88	%
Residential mortgage and consumer	4	6.82	%	3.07	%	—	—	%	—	%

	Six Months Ended June 30,
	2021					2020
	Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield		Number of Loans	Pre-modification Interest Yield		Post- modification Interest Yield
Troubled Debt Restructurings:
Commercial real estate	1	6.00	%	6.00	%	1	3.88	%	3.88	%
Commercial and industrial	—	—	%	—	%	1	4.75	%	4.75	%
Residential mortgage and consumer	4	6.82	%	3.07	%	—	—	%	—	%

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Allowance for Credit Losses (Tables)

6 Months Ended

Jun. 30, 2021

Credit Loss [Abstract]

Schedule of provisions for credit loss

An analysis of the provision for credit losses is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Provision for loan losses	$	(14,452)	29,924	(15,413)	56,676
Provision for debt securities held-to-maturity	(259)		249	(1,185)	680
Provision for off-balance sheet credit exposures	5,021		3,105	3,936	7,148
Total provision for credit losses	$	(9,690)	33,278	(12,662)	64,504

Schedule of financing receivable, allowance for credit loss

An analysis of the allowance for credit losses for loans receivable is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of period	$	283,760	243,288	282,986	228,120
Adjustment for adoption of ASC 326	—		—	—	(3,551)
Gross charge offs	(697)		(5,058)	(1,378)	(15,988)
Recoveries	1,503		985	3,919	3,882
Net charge-offs	806		(4,073)	2,541	(12,106)
Allowance at acquisition on loans purchased with credit deterioration	—		4,180	—	4,180
Provision for credit loss expense	(14,452)		29,924	(15,413)	56,676
Balance at end of the period	$	270,114	273,319	270,114	273,319

Summary of allowance for credit losses for loans by portfolio segment

The following tables present the balance in the allowance for credit losses for loans by portfolio segment as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Multi- Family Loans		Commercial Real Estate Loans	Commercial and Industrial Loans	Construction Loans	Residential Mortgage Loans	Consumer and Other Loans	Unallocated	Total
	(Dollars in thousands)
Allowance for credit losses:
Balance as of December 31, 2020	$	56,731	115,918	79,327	7,267	19,941	3,802	—	282,986
Charge-offs	(479)		(118)	(615)	—	(158)	(8)	—	(1,378)
Recoveries	1,863		74	972	—	934	76	—	3,919
Provision for credit loss expense	3,596		(22,421)	3,157	5,553	(4,528)	(770)	—	(15,413)
Ending balance-June 30, 2021	$	61,711	93,453	82,841	12,820	16,189	3,100	—	270,114

	December 31, 2020
	Multi- Family Loans		Commercial Real Estate Loans	Commercial and Industrial Loans	Construction Loans	Residential Mortgage Loans	Consumer and Other Loans	Unallocated	Total
	(Dollars in thousands)
Allowance for credit losses:
Balance as of December 31, 2019	$	74,099	50,925	74,396	6,816	17,391	2,548	1,945	228,120
Adjustment for adoption of ASC 326	(9,741)		(4,631)	(7,511)	(1,901)	20,089	2,089	(1,945)	(3,551)
Balance as of January 1, 2020	64,358		46,294	66,885	4,915	37,480	4,637	—	224,569
Charge-offs	(4,631)		(521)	(12,005)	—	(1,190)	(41)	—	(18,388)
Recoveries	1,965		412	4,459	—	677	222	—	7,735
Allowance at acquisition on loans purchased with credit deterioration	209		3,208	287	127	344	5	—	4,180
Provision for credit loss expense	(5,170)		66,525	19,701	2,225	(17,370)	(1,021)	—	64,890
Ending balance-December 31, 2020	$	56,731	115,918	79,327	7,267	19,941	3,802	—	282,986

Schedule of debt securities, held-to-maturity, allowance for credit loss

An analysis of the allowance for credit losses for debt securities held-to-maturity is summarized as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of the period	$	2,338	2,995	3,264	—
Impact of adopting ASC 326	—		—	—	2,564
Provision for credit losses	(259)		249	(1,185)	680
Balance at end of the period	$	2,079	3,244	2,079	3,244

The following tables present the balance in the allowance for credit losses for debt securities held-to-maturity by portfolio segment as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Municipal Bonds		Corporate and Other Debt Securities	Total
	(Dollars in thousands)
Allowance for credit losses:
Beginning balance-December 31, 2020	$	34	3,230	3,264
Provision for credit loss	(10)		(1,175)	(1,185)
Ending balance-June 30, 2021	$	24	2,055	2,079

Schedule of fair value, off-balance sheet risks

	December 31, 2020
	Municipal Bonds		Corporate and Other Debt Securities	Total
	(Dollars in thousands)
Allowance for credit losses:
Beginning balance - December 31, 2019	$	—	—	—
Impact of adopting ASC 326	17		2,547	2,564
Provision for credit loss	17		683	700
Ending balance - December 31, 2020	$	34	3,230	3,264

An analysis of the allowance for credit losses for off-balance sheet credit exposures is as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Balance at beginning of the period	$	16,582	17,142	17,667	425
Impact of adopting ASC 326	—		—	—	12,674
Provision for credit losses	5,021		3,105	3,936	7,148
Balance at end of the period	$	21,603	20,247	21,603	20,247

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Deposits (Tables)

6 Months Ended

Jun. 30, 2021

Deposits [Abstract]

Summary of deposits

Deposits are summarized as follows:

	June 30, 2021		December 31, 2020
	(In thousands)
Non-interest bearing:
Checking accounts	$	4,169,816	3,663,073
Interest bearing:
Checking accounts	6,354,368		6,043,393
Money market deposits	4,551,806		5,037,327
Savings	2,076,711		2,063,447
Certificates of deposit	2,286,265		2,718,179
Total deposits	$	19,438,966	19,525,419

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Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill and intangible assets

The following table summarizes goodwill and intangible assets at June 30, 2021 and December 31, 2020:

	June 30, 2021		December 31, 2020
	(In thousands)
Mortgage servicing rights	$	11,122	10,957
Core deposit premiums	3,022		3,560
Other	543		581
Total other intangible assets	14,687		15,098
Goodwill	94,535		94,535
Goodwill and intangible assets	$	109,222	109,633

Summary of intangible assets

The following table summarizes other intangible assets as of June 30, 2021 and December 31, 2020:

	Gross Intangible Asset		Accumulated Amortization	Valuation Allowance	Net Intangible Assets
	(In thousands)
June 30, 2021
Mortgage servicing rights	$	16,776	(5,581)	(73)	11,122
Core deposit premiums	23,063		(20,041)	—	3,022
Other	850		(307)	—	543
Total other intangible assets	$	40,689	(25,929)	(73)	14,687
December 31, 2020
Mortgage servicing rights	$	17,559	(5,592)	(1,010)	10,957
Core deposit premiums	23,063		(19,503)	—	3,560
Other	1,150		(569)	—	581
Total other intangible assets	$	41,772	(25,664)	(1,010)	15,098

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Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Schedule of balance sheet information related to leases

The following table presents the balance sheet information related to our operating leases:

	June 30, 2021			December 31, 2020
	(Dollars in thousands)
Operating lease right-of-use assets	$	200,425		199,981
Operating lease liabilities	213,050			212,559
Weighted average remaining lease term	8.9 years			9.4 years
Weighted average discount rate	2.44		%	2.49	%

Schedule of lease cost

The following table presents the components of total operating lease cost recognized in the Consolidated Statements of Income:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Included in office occupancy and equipment expense:
Operating lease cost	$	7,280	6,526	14,429	12,807
Short-term lease cost	214		103	430	189
Included in other income:
Sublease income	35		51	86	118

The following table presents supplemental cash flow information related to operating leases:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$	7,271	5,872	14,533	11,579
Operating lease liabilities arising from obtaining right-of-use assets (non-cash):
Operating leases	11,066		7,278	13,234	7,837

Schedule of maturity of operating lease liabilities

Future minimum operating lease payments and reconciliation to operating lease liabilities at June 30, 2021 and December 31, 2020:

	June 30, 2021		December 31, 2020
	(In thousands)
2021	$	14,535	28,844
2022	28,986		27,448
2023	27,937		26,354
2024	27,912		26,300
2025	27,267		25,496
Thereafter	111,198		104,729
Total lease payments	237,835		239,171
Less: Imputed interest	(24,785)		(26,612)
Total operating lease liabilities	$	213,050	$	212,559

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Equity Incentive Plan (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of share based compensation expense

The following table presents the share-based compensation expense for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Stock option expense	$	947	1,011	1,857	1,999
Restricted stock expense	2,760		2,943	5,310	5,844
Total share-based compensation expense	$	3,707	3,954	7,167	7,843

Schedule of company’s stock option activity and related information

The following is a summary of the Company’s stock option activity and related information for the six months ended June 30, 2021:

	Number of Stock Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2020	5,570,858	$	12.46	4.5	$	191
Granted	—	—		—
Exercised	(417,605)	12.12		3.9
Forfeited	(31,429)	12.54
Expired	(14,286)	12.54
Outstanding at June 30, 2021	5,107,538	12.49		4.1	9,059
Exercisable at June 30, 2021	4,196,262	$	12.48	4.0	$	7,478

Schedule of status of the company’s restricted shares

The following is a summary of the status of the Company’s restricted shares as of June 30, 2021 and changes therein during the six months ended:

	Number of Shares Awarded	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020	1,974,235	$	12.44
Granted	239,166	13.17
Vested	(775,097)	12.39
Forfeited	(20,567)	11.70
Outstanding and non-vested at June 30, 2021	1,417,737	$	12.47

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Net Periodic Benefit Plan Expense (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Summary of net periodic benefit cost for the Directors’ Plan and the wage replacement plan

The components of net periodic benefit cost for the Directors’ Plan and the SERP II are as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Interest cost	$	250	324	500	648
Amortization of:
Net loss	142		299	284	598
Total net periodic benefit cost	$	392	623	784	1,246

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Derivatives and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of fair value of the company’s derivative financial instruments

Fair Values of Derivative Instruments on the Balance Sheet

Amounts included in the Consolidated Balance Sheet related to the fair value of the Company’s derivative instruments are shown below. Asset derivatives depicted below represent derivatives with a positive fair value position, while liability derivatives represent derivatives with a negative fair value position.

	June 30, 2021
	Asset Derivatives				Liability Derivatives
	Notional Amount		Fair Value		Notional Amount		Fair Value
	(in millions)		(In thousands)		(in millions)		(In thousands)
Derivatives designated as hedging instruments:
Interest Rate Swaps	$	1,150	$	24,946	$	2,425	$	84,212
Total derivatives designated as hedging instruments			$	24,946			$	84,212
Derivatives not designated as hedging instruments:
Interest Rate Swaps	$	689	$	24,037	$	689	$	24,037
Other Contracts	—		—		34		146
Total derivatives not designated as hedging instruments			$	24,037			$	24,183
Netting Adjustments (1)			29,802				102,063
Net Derivatives on the Balance Sheet			$	19,181			$	6,332
Cash Collateral (2)			—				—
Net Derivative Amounts			$	19,181			$	6,332

(1) Netting adjustments represents the amounts recorded to convert derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The Chicago Mercantile Exchange (“CME”) legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.

(2) Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The application of collateral cannot reduce the net derivative position below zero. Therefore, excess collateral, if any, is not reflected above.

	December 31, 2020
	Asset Derivatives				Liability Derivatives
	Notional Amount		Fair Value		Notional Amount		Fair Value
	(in millions)		(In thousands)		(in millions)		(In thousands)
Derivatives designated as hedging instruments:
Interest Rate Swaps	$	400	$	1,419	$	2,925	$	115,166
Total derivatives designated as hedging instruments			$	1,419			$	115,166
Derivatives not designated as hedging instruments:
Interest Rate Swaps	$	641	$	34,155	$	641	$	34,155
Other Contracts	—		—		34		217
Total derivatives not designated as hedging instruments			$	34,155			$	34,372
Netting Adjustments (1)			997				149,046
Net Derivatives on the Balance Sheet			$	34,577			$	492
Cash Collateral (2)			—				237
Net Derivative Amounts			$	34,577			$	255

(1) Netting adjustments represents the amounts recorded to convert derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The Chicago Mercantile Exchange (“CME”) legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.

(2) Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The application of collateral cannot reduce the net derivative position below zero. Therefore, excess collateral, if any, is not reflected above.

Schedule of effect of the company’s derivative financial instruments on the consolidated statement of income

The following table presents the effect of the Company’s derivative financial instruments on the Accumulated Comprehensive Income (Loss) for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Cash Flow Hedges - Interest rate swaps
Amount of (loss) gain recognized in other comprehensive income (loss)	$	(13,940)	(17,040)	34,181	(117,401)
Amount of loss reclassified from accumulated other comprehensive income (loss) to interest expense	(10,468)		(6,628)	(20,487)	(8,717)

The following table presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income as of June 30, 2021 and 2020.

		For the Three Months Ended June 30,			For the Six Months Ended June 30,
		2021		2020	2021	2020
The effects of fair value and cash flow hedging:	Income statement location	(In thousands)
Fair Value Hedges - Gain or (loss) on relationships in Subtopic 815-20
Interest contracts
Hedged items	Interest income	$	189	(2,239)	(50)	4,530
Derivatives designated as hedging instruments	Interest income	(210)		(136)	57	(7,324)
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Interest contracts
Amount of loss reclassified from accumulated other comprehensive income (loss)	Interest expense	(10,468)		(6,628)	(20,487)	(8,717)
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) as a result that a forecasted transaction is no longer probable of occurring	Other expense	—		—	—	—
Total amounts of income and expense line items presented in the income statement in which the effects of fair value are recorded		$	(10,489)	(9,003)	(20,480)	(11,511)

Schedule of cumulative basis adjustment for fair value hedges

As of June 30, 2021 and December 31, 2020, the following amounts were recorded on the Consolidated Balance Sheets related to cumulative basis adjustment for fair value hedges:

	Carrying Amount of the Hedged Assets/(Liabilities)			Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)
Balance sheet location	June 30, 2021		December 31, 2020	June 30, 2021		December 31, 2020
	(In thousands)
Loans receivable, net (1)(2)	$	149,951	—	$	5,810	8,798

(1) At June 30, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $396.6 million; the cumulative basis adjustments associated with these hedging relationships was $5.8 million; and the amounts of the designated hedged items were $150.0 million.

(2) The balance of Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities) as of June 30, 2021 includes $5.9 million of hedging adjustment on discontinued hedging relationships.

Schedule of derivatives not designated as hedging instruments

The table below presents the effect of the Company’s derivative financial instruments that are not designated as hedging instruments on the Consolidated Statements of Income as of June 30, 2021:

	Consolidated Statements of Income location	Amount of Gain (Loss) Recognized in Income on Derivative
		For the Three Months Ended June 30,			For the Six Months Ended June 30,
		2021		2020	2021	2020
		(In thousands)
Other Contracts	Other income / (expense)	$	(38)	4	71	(125)
Total		$	(38)	4	71	(125)

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Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of components of comprehensive income

The components of comprehensive income, gross and net of tax, are as follows:

	Three Months Ended June 30,
	2021				2020
	Gross		Tax	Net	Gross	Tax	Net
	(Dollars in thousands)
Net income	$	109,036	(29,229)	79,807	58,829	(16,218)	42,611
Other comprehensive loss:
Change in funded status of retirement obligations	170		(48)	122	416	(117)	299
Unrealized losses on debt securities available-for-sale	(4,869)		1,161	(3,708)	(1,216)	219	(997)
Accretion of loss on debt securities reclassified to held-to-maturity from available-for-sale	39		(9)	30	73	(17)	56
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	268		(75)	193	385	(108)	277
Net losses on derivatives	(3,472)		976	(2,496)	(10,412)	2,927	(7,485)
Total other comprehensive loss	(7,864)		2,005	(5,859)	(10,754)	2,904	(7,850)
Total comprehensive income	$	101,172	(27,224)	73,948	48,075	(13,314)	34,761

	Six Months Ended June 30,
	2021				2020
	Gross		Tax	Net	Gross	Tax	Net
	(Dollars in thousands)
Net income	$	208,385	(56,303)	152,082	112,988	(30,865)	82,123
Other comprehensive income (loss):
Change in funded status of retirement obligations	338		(95)	243	444	(125)	319
Unrealized (losses) gains on debt securities available-for-sale	(28,919)		6,891	(22,028)	48,193	(11,562)	36,631
Accretion of loss on securities reclassified to held-to-maturity from available-for-sale	80		(19)	61	147	(35)	112
Reclassification adjustment for security gains included in net income	(398)		99	(299)	—	—	—
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020	517		(145)	372	635	(178)	457
Net gains (losses) on derivatives	54,668		(15,367)	39,301	(108,684)	30,551	(78,133)
Total other comprehensive income (loss)	26,286		(8,636)	17,650	(59,265)	18,651	(40,614)
Total comprehensive income	$	234,671	(64,939)	169,732	53,723	(12,214)	41,509

Schedule of component of accumulated other comprehensive loss

The following table presents the after-tax changes in the balances of each component of accumulated other comprehensive loss for the six months ended June 30, 2021 and 2020:

	Change in funded status of retirement obligations		Accretion of loss on debt securities reclassified to held-to-maturity	Unrealized gains on debt securities available-for-sale and gains included in net income	Other-than- temporary impairment accretion on debt securities	Unrealized losses on derivatives	Total accumulated other comprehensive loss
	(Dollars in thousands)
Balance - December 31, 2020	$	(9,485)	(184)	57,204	(9,809)	(77,742)	(40,016)
Net change	243		61	(22,327)	372	39,301	17,650
Balance - June 30, 2021	$	(9,242)	(123)	34,877	(9,437)	(38,441)	(22,366)
Balance - December 31, 2019	$	(6,690)	(386)	29,456	(10,629)	(30,373)	(18,622)
Net change	319		112	36,631	457	(78,133)	(40,614)
Balance - June 30, 2020	$	(6,371)	(274)	66,087	(10,172)	(108,506)	(59,236)

The following table presents information about amounts reclassified from accumulated other comprehensive loss to the consolidated statements of income and the affected line item in the statement where net income is presented.

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(In thousands)
Reclassification adjustment for gains included in net income
Gain on securities, net	$	—	—	(398)	—
Change in funded status of retirement obligations
Amortization of net loss	170		299	338	599
Compensation and fringe benefits	170		299	338	599
Reclassification adjustment for unrealized losses on derivatives
Interest expense	10,468		6,092	20,487	8,181
Total before tax	10,638		6,391	20,427	8,780
Income tax expense	(2,852)		(1,762)	(5,527)	(2,398)
Net of tax	$	7,786	4,629	14,900	6,382

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Stockholders’ Equity (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of components of stockholders’ equity

The changes in the components of stockholders’ equity for the three months ended June 30, 2021 and 2020 are as follows:

	Common stock		Additional paid-in capital	Retained earnings	Treasury stock	Unallocated common stock held by ESOP	Accumulated other comprehensive loss	Total stockholders’ equity
	(In thousands)
Balance at March 31, 2020	$	3,591	2,826,288	1,247,028	(1,353,246)	(77,517)	(51,386)	2,594,758
Net income	—		—	42,611	—	—	—	42,611
Other comprehensive loss, net of tax	—		—	—	—	—	(7,850)	(7,850)
Common stock issued to finance acquisition	28		20,853	—	—	—	—	20,881
Purchase of treasury stock (298,977 shares)	—		—	—	(2,429)	—	—	(2,429)
Treasury stock allocated to restricted stock plan (4,000 shares)	—		(36)	(13)	49	—	—	—
Compensation cost for stock options and restricted stock	—		3,954	—	—	—	—	3,954
Cash dividend paid ($0.12 per common share)	—		—	(30,021)	—	—	—	(30,021)
ESOP shares allocated or committed to be released	—		247	—	—	749	—	996
Balance at June 30, 2020	$	3,619	2,851,306	1,259,605	(1,355,626)	(76,768)	(59,236)	2,622,900
Balance at March 31, 2021	$	3,619	2,860,045	1,376,774	(1,378,858)	(74,521)	(16,507)	2,770,552
Net income	—		—	79,807	—	—	—	79,807
Other comprehensive loss, net of tax	—		—	—	—	—	(5,859)	(5,859)
Purchase of treasury stock (299,838 shares)	—		—	—	(4,343)	—	—	(4,343)
Treasury stock allocated to restricted stock plan (22,823 shares)	—		(335)	49	286	—	—	—
Compensation cost for stock options and restricted stock	—		3,707	—	—	—	—	3,707
Exercise of stock options	—		8	—	3,019	—	—	3,027
Restricted stock forfeitures (12,000 shares)	—		134	12	(146)	—	—	—
Cash dividend paid ($0.14 per common share)	—		—	(34,613)	—	—	—	(34,613)
ESOP shares allocated or committed to be released	—		1,000	—	—	749	—	1,749
Balance at June 30, 2021	$	3,619	2,864,559	1,422,029	(1,380,042)	(73,772)	(22,366)	2,814,027

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of fair value, assets measured on recurring basis

The following tables present our assets and liabilities measured at fair value on a recurring basis by level within the valuation hierarchy at June 30, 2021 and December 31, 2020.

	At June 30, 2021
	Total		Level 1	Level 2	Level 3
	(In thousands)
Assets:
Equity securities	$	9,698	9,698	—	—
Debt securities available for sale:
Government-sponsored enterprises	$	4,064	—	4,064	—
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	1,189,868		—	1,189,868	—
Federal National Mortgage Association	1,188,302		—	1,188,302	—
Government National Mortgage Association	162,181		—	162,181	—
Total debt securities available-for-sale	$	2,544,415	—	2,544,415	—
Interest rate swaps	$	19,181	—	19,181	—
Liabilities:
Derivatives:
Interest rate swaps	$	6,186	—	6,186	—
Other contracts	146		—	146	—
Total derivatives	$	6,332	—	6,332	—

	At December 31, 2020
	Total		Level 1	Level 2	Level 3
	(In thousands)
Assets:
Equity securities	$	36,000	36,000	—	—
Debt securities available for sale:
Debt securities:
Government-sponsored enterprises	4,482		—	4,482	—
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation	$	1,317,052	—	1,317,052	—
Federal National Mortgage Association	1,205,426		—	1,205,426	—
Government National Mortgage Association	231,477		—	231,477	—
Total debt securities available-for-sale	$	2,758,437	—	2,758,437	—
Interest rate swaps	$	34,577	—	34,577	—
Liabilities:
Derivatives:
Interest rate swaps	$	275	—	275	—
Other contracts	217		—	217	—
Total derivatives	$	492	—	492	—

Schedule of carrying value of our assets measured at fair value on a non-recurring basis

The following tables provide the level of valuation assumptions used to determine the carrying value of our assets measured at fair value on a non-recurring basis that have changed for the periods ended June 30, 2021 and December 31, 2020. For the three months ended June 30, 2021, there was no change to the carrying value of other real estate owned, collateral dependent loans or operating lease equipment. For the three months ended December 31, 2020, there was no change to the carrying value of other real estate owned or collateral dependent loans.

Security Type	Valuation Technique	Unobservable Input	Range		Weighted Average Input	Carrying Value at June 30, 2021
			Minimum	Maximum		Total		Level 1	Level 2	Level 3
						(In thousands)
MSR, net	Estimated cash flow	Prepayment speeds	3.2%	31.2%	14.76%	$	9,047	—	—	9,047
						$	9,047	—	—	9,047

Security Type	Valuation Technique	Unobservable Input	Range		Weighted Average Input	Carrying Value at December 31, 2020
			Minimum	Maximum		Total		Level 1	Level 2	Level 3
						(In thousands)
MSR, net	Estimated cash flow	Prepayment speeds	14.5%	23.6%	17.76%	$	10,663	—	—	10,663
Operating lease equipment	Market comparable	Lack of marketability	0.0%	10.4%	10.41%	15,007		—	—	15,007
						$	25,670	—	—	25,670

Schedule of carrying amounts and estimated fair values

The carrying values and estimated fair values of the Company’s financial instruments are presented in the following table.

	June 30, 2021
	Carrying		Estimated Fair Value
	value		Total	Level 1	Level 2	Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	770,396	770,396	770,396	—	—
Equities	9,698		9,698	9,698	—	—
Debt securities available-for-sale	2,544,415		2,544,415	—	2,544,415	—
Debt securities held-to-maturity, net	1,178,812		1,253,521	—	1,169,778	83,743
FHLB stock	199,826		199,826	199,826	—	—
Loans held for sale	—		—	—	—	—
Net loans	21,082,521		21,108,980	—	—	21,108,980
Derivative financial instruments	19,181		19,181	—	19,181	—
Financial liabilities:
Deposits, other than time deposits	$	17,152,701	17,152,701	17,152,701	—	—
Time deposits	2,286,265		2,287,966	—	2,287,966	—
Borrowed funds	4,033,864		4,084,597	—	4,084,597	—
Derivative financial instruments	6,332		6,332	—	6,332	—

	December 31, 2020
	Carrying		Estimated Fair Value
	value		Total	Level 1	Level 2	Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	170,432	170,432	170,432	—	—
Equities	36,000		36,000	36,000	—	—
Debt securities available-for-sale	2,758,437		2,758,437	—	2,758,437	—
Debt securities held-to-maturity, net	1,247,853		1,320,872	—	1,253,566	67,306
FHLB stock	159,829		159,829	159,829	—	—
Loans held for sale	30,357		30,357	—	30,357	—
Net loans	20,580,451		20,787,917	—	—	20,787,917
Derivative financial instruments	34,577		34,577	—	34,577	—
Financial liabilities:
Deposits, other than time deposits	$	16,807,240	16,807,240	16,807,240	—	—
Time deposits	2,718,179		2,726,230	—	2,726,230	—
Borrowed funds	3,295,790		3,367,491	—	3,367,491	—
Derivative financial instruments	492		492	—	492	—

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Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Schedule of disaggregation of revenue

Revenue from contracts with customers included in fees and service charges and other income was as follows:

	Three Months Ended June 30,			Six Months Ended June 30,
	2021		2020	2021	2020
	(Dollars in thousands)
Revenue from contracts with customers included in:
Fees and service charges	$	3,733	2,908	7,331	6,858
Other income	4,630		1,965	9,203	4,984
Total revenue from contracts with customers	$	8,363	4,873	16,534	11,842

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Stock Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Oct. 25, 2018	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stock Transactions
Percentage of shares to be repurchased (percentage)	10.00%
Number of shares authorized to be repurchased (shares)	28,886,780
Remaining number of shares authorized to be repurchased (shares)		12,000,202		12,000,202
Purchase of treasury stock (shares)		299,838	298,977	964,114	383,366
Stock repurchased during period, value		$ 4,343	$ 2,429	$ 11,958	$ 3,361
Stock repurchase cost, per share (usd per share)				$ 12.40
2015 Plan
Stock Transactions
Purchase of treasury stock (shares)				339,114

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Business Combinations (Narrative) (Details) $ / shares in Units, $ in Thousands, shares in Millions	Dec. 02, 2020 USD ($) branch	Apr. 03, 2020 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($) $ / shares
Business Acquisition
Common stock, par value (usd per share) | $ / shares			$ 0.01	$ 0.01
Goodwill			$ 94,535	$ 94,535
Gold Coast Bancorp, Inc.
Business Acquisition
Shares issued to acquire business (shares) | shares		2.8
Payments to acquire business		$ 31,000
Percentage of common shares of acquiree converted into Investors Bancorp common stock (percentage)		50.00%
Percentage of acquiree shares exchanged for cash (percentage)		50.00%
Shares received in merger (shares) | $ / shares		1.422
Common stock, par value (usd per share) | $ / shares		$ 0.01
Cash per share received in merger (usd per share) | $ / shares		$ 15.75
Goodwill		$ 12,000
Berkshire Bank
Business Acquisition
Branch location | branch	8
Deposits	$ 633,000
Consumer and commercial loans acquired	$ 253,000

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Business Combinations (Summarizes the estimated fair values of the assets acquired and liabilities) (Details) - Gold Coast Bancorp, Inc. $ in Millions	Apr. 03, 2020 USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net
Cash and cash equivalents	$ 7.3
Debt securities available-for-sale	51.5
Debt securities held to maturity	8.4
Loans receivable, net	443.5
Accrued interest receivable	1.3
Right-of-use assets	3.7
Net deferred tax asset	3.9
Intangible assets	14.5
Other assets	1.2
Total assets acquired	535.3
Deposits	489.9
Borrowed funds	14.9
Other liabilities	9.7
Total liabilities assumed	514.5
Net assets acquired	$ 20.8

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Business Combinations (Carrying amount of those loans) (Details) - Gold Coast Bancorp, Inc. $ in Millions	Apr. 03, 2020 USD ($)
Business Acquisition
Purchase price of loans at acquisition	$ 244.7
Allowance for credit losses at acquisition	4.2
Non-credit discount at acquisition	2.6
Par value of acquired loans at acquisition	$ 251.5

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Earnings Per Share (Summary of Calculations and Reconciliation of Basic to Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings for basic and diluted earnings per common share
Earnings applicable to common stockholders	$ 79,807	$ 42,611	$ 152,082	$ 82,123
Shares
Weighted-average common shares outstanding - basic (shares)	235,045,023	236,248,296	234,854,494	234,755,591
Effect of dilutive common stock equivalents (shares)	1,452,513	133,807	1,081,685	171,829
Weighted-average common shares outstanding - diluted (shares)	236,497,536	236,382,103	235,936,179	234,927,420
Earnings per common share
Basic (usd per share)	$ 0.34	$ 0.18	$ 0.65	$ 0.35
Diluted (usd per share)	$ 0.34	$ 0.18	$ 0.64	$ 0.35
Equity awards
Earnings per common share
Securities excluded from computation of diluted earnings per share (shares)	12,437	7,442,906	207,128	6,378,766

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Securities (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Marketable Securities
Equity securities	$ 9,698,000		$ 9,698,000			$ 36,000,000
Debt securities, allowance for credit loss	2,079,000	$ 3,244,000	2,079,000	$ 3,244,000	$ 2,338,000	3,264,000	$ 2,995,000	$ 0
Debt securities held-to-maturity, estimated fair value	1,253,521,000		1,253,521,000			1,320,872,000
Held-to-maturity securities pledged as collateral	1,800,000,000		1,800,000,000
Held-to-maturity securities pledged as collateral, fair value	1,850,000,000		1,850,000,000
Proceeds from sale of held to maturity securities	16,300,000	0	32,900,000	0
Net losses recognized on equity securities sold	(210,000)	0	248,000	0
Proceeds from sales of debt securities available for sale			8,171,000	0
Gains on sale of available for sale s debt securities			398,000
Unrealized gains (losses) recognized during the period on equity securities	73,000	$ 28,000	784,000	107,000
Proceeds the sales and maturity of held to maturity securities				16,500,000
Loss on sale of securities				$ 124,000
Corporate and other debt securities
Marketable Securities
Carrying value of held to maturity security	133,023,000		133,023,000			130,565,000
Debt securities held-to-maturity, estimated fair value	169,662,000		$ 169,662,000			$ 149,713,000
Debt maturities, term (in years)			20 years
Corporate and other debt securities | TruP Security
Marketable Securities
Carrying value of held to maturity security	50,500,000		$ 50,500,000
Debt securities held-to-maturity, estimated fair value	$ 83,700,000		$ 83,700,000

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Securities (Equity Securities) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Unrealized gains recognized on equity securities	$ 73	$ 28	$ 784	$ 107
Net gains (losses) recognized on equity securities sold	210	0	(248)	0
Net gains recognized on equity securities	$ 283	$ 28	$ 536	$ 107

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Securities (Summary of Securities- AFS) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale
Amortized cost	$ 2,498,617	$ 2,683,322
Gross unrealized gains	53,346	75,420
Gross unrealized losses	7,548	305
Debt securities available-for-sale, at estimated fair value	2,544,415	2,758,437
Government-sponsored enterprises
Debt Securities, Available-for-sale
Amortized cost	3,870	4,260
Gross unrealized gains	194	222
Gross unrealized losses	0	0
Debt securities available-for-sale, at estimated fair value	4,064	4,482
Federal Home Loan Mortgage Corporation
Debt Securities, Available-for-sale
Amortized cost	1,169,804	1,286,195
Gross unrealized gains	22,844	30,930
Gross unrealized losses	2,780	73
Debt securities available-for-sale, at estimated fair value	1,189,868	1,317,052
Federal National Mortgage Association
Debt Securities, Available-for-sale
Amortized cost	1,165,272	1,167,057
Gross unrealized gains	27,310	38,568
Gross unrealized losses	4,280	199
Debt securities available-for-sale, at estimated fair value	1,188,302	1,205,426
Government National Mortgage Association
Debt Securities, Available-for-sale
Amortized cost	159,671	225,810
Gross unrealized gains	2,998	5,700
Gross unrealized losses	488	33
Debt securities available-for-sale, at estimated fair value	162,181	231,477
Mortgage-backed securities:
Debt Securities, Available-for-sale
Amortized cost	2,494,747	2,679,062
Gross unrealized gains	53,152	75,198
Gross unrealized losses	7,548	305
Debt securities available-for-sale, at estimated fair value	$ 2,540,351	$ 2,753,955

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Securities (Summary of Securities- HTM) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities
Gross unrealized losses	$ 4,997		$ 1,860
Estimated fair value	1,253,521		1,320,872
Allowance for credit losses	2,079	$ 2,338	3,264	$ 3,244	$ 2,995	$ 0
Total debt securities held-to-maturity, net of allowance for credit losses	1,178,812		1,247,853
Held-to-maturity:
Schedule of Held-to-maturity Securities
Amortized cost	1,194,179		1,265,002
Net unrealized losses	13,288		13,885
Total	1,180,891		1,251,117
Gross unrecognized gains	77,627		71,615
Gross unrealized losses	4,997		1,860
Estimated fair value	1,253,521		1,320,872
Total debt securities held-to-maturity
Schedule of Held-to-maturity Securities
Amortized cost	492,435		499,826
Net unrealized losses	13,127		13,644
Total	479,308		486,182
Gross unrecognized gains	54,020		39,130
Gross unrealized losses	2,363		1,594
Estimated fair value	530,965		523,718
Government-sponsored enterprises
Schedule of Held-to-maturity Securities
Amortized cost	133,579		109,016
Net unrealized losses	0		0
Total	133,579		109,016
Gross unrecognized gains	3,129		4,107
Gross unrealized losses	2,112		709
Estimated fair value	134,596		112,414
Municipal bonds
Schedule of Held-to-maturity Securities
Amortized cost	212,706		246,601
Net unrealized losses	0		0
Total	212,706		246,601
Gross unrecognized gains	14,012		14,990
Gross unrealized losses	11		0
Estimated fair value	226,707		261,591
Corporate and other debt securities
Schedule of Held-to-maturity Securities
Amortized cost	146,150		144,209
Net unrealized losses	13,127		13,644
Total	133,023		130,565
Gross unrecognized gains	36,879		20,033
Gross unrealized losses	240		885
Estimated fair value	169,662		149,713
Mortgage-backed securities:
Schedule of Held-to-maturity Securities
Amortized cost	701,744		765,176
Net unrealized losses	161		241
Total	701,583		764,935
Gross unrecognized gains	23,607		32,485
Gross unrealized losses	2,634		266
Estimated fair value	722,556		797,154
Federal Home Loan Mortgage Corporation
Schedule of Held-to-maturity Securities
Amortized cost	293,877		308,285
Net unrealized losses	44		66
Total	293,833		308,219
Gross unrecognized gains	6,420		9,733
Gross unrealized losses	2,309		266
Estimated fair value	297,944		317,686
Federal National Mortgage Association
Schedule of Held-to-maturity Securities
Amortized cost	377,418		413,601
Net unrealized losses	117		175
Total	377,301		413,426
Gross unrecognized gains	15,996		20,905
Gross unrealized losses	325		0
Estimated fair value	392,972		434,331
Government National Mortgage Association
Schedule of Held-to-maturity Securities
Amortized cost	30,449		43,290
Net unrealized losses	0		0
Total	30,449		43,290
Gross unrecognized gains	1,191		1,847
Gross unrealized losses	0		0
Estimated fair value	$ 31,640		$ 45,137

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Securities (Investment Securities, Continuous Unrealized Loss Position And Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Available-for-sale, Estimated fair value
Less than 12 Months, Estimated fair value	$ 527,883	$ 192,893
12 Months or more, Estimated fair value	98,285	0
Total, Estimated fair value	626,168	192,893
Available-for-sale, Unrealized Losses
Less than 12 Months, Unrealized losses	7,512	305
12 Months or more, Unrealized losses	36	0
Total, Unrealized loss	7,548	305
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	257,325	121,609
12 months or more, Estimated fair value	0	0
Total, Estimated fair value	257,325	121,609
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	4,997	1,860
12 months or more, Unrealized losses	0	0
Total, Unrealized losses	4,997	1,860
Estimated fair value, less than 12 months, total	785,208	314,502
Unrealized losses, less than 12 months, total	12,509	2,165
Estimated fair value, 12 months or more, total	98,285	0
Unrealized losses, 12 months or more, total	36	0
Estimated fair value, total	883,493	314,502
Unrealized losses, total	12,545	2,165
Mortgage-backed securities:
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	157,422
12 months or more, Estimated fair value	0
Total, Estimated fair value	157,422
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	2,634
12 months or more, Unrealized losses	0
Total, Unrealized losses	2,634	266
Federal Home Loan Mortgage Corporation
Available-for-sale, Estimated fair value
Less than 12 Months, Estimated fair value	178,126	60,502
12 Months or more, Estimated fair value	0	0
Total, Estimated fair value	178,126	60,502
Available-for-sale, Unrealized Losses
Less than 12 Months, Unrealized losses	2,780	73
12 Months or more, Unrealized losses	0	0
Total, Unrealized loss	2,780	73
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	116,358	40,013
12 months or more, Estimated fair value	0	0
Total, Estimated fair value	116,358	40,013
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	2,309	266
12 months or more, Unrealized losses	0	0
Total, Unrealized losses	2,309	266
Federal National Mortgage Association
Available-for-sale, Estimated fair value
Less than 12 Months, Estimated fair value	316,984	123,329
12 Months or more, Estimated fair value	98,285	0
Total, Estimated fair value	415,269	123,329
Available-for-sale, Unrealized Losses
Less than 12 Months, Unrealized losses	4,244	199
12 Months or more, Unrealized losses	36	0
Total, Unrealized loss	4,280	199
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	41,064
12 months or more, Estimated fair value	0
Total, Estimated fair value	41,064
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	325
12 months or more, Unrealized losses	0
Total, Unrealized losses	325	0
Government National Mortgage Association
Available-for-sale, Estimated fair value
Less than 12 Months, Estimated fair value	32,773	9,062
12 Months or more, Estimated fair value	0	0
Total, Estimated fair value	32,773	9,062
Available-for-sale, Unrealized Losses
Less than 12 Months, Unrealized losses	488	33
12 Months or more, Unrealized losses	0	0
Total, Unrealized loss	488	33
Held-to-maturity Securities, Unrealized Losses
Total, Unrealized losses	0	0
Debt securities
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	99,903	81,596
12 months or more, Estimated fair value	0	0
Total, Estimated fair value	99,903	81,596
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	2,363	1,594
12 months or more, Unrealized losses	0	0
Total, Unrealized losses	2,363	1,594
Government-sponsored enterprises
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	89,991	66,558
12 months or more, Estimated fair value	0	0
Total, Estimated fair value	89,991	66,558
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	2,112	709
12 months or more, Unrealized losses	0	0
Total, Unrealized losses	2,112	709
Municipal bonds
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	3,123
12 months or more, Estimated fair value	0
Total, Estimated fair value	3,123
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	11
12 months or more, Unrealized losses	0
Total, Unrealized losses	11	0
Corporate and other debt securities
Held-to-maturity Securities, Estimated Fair Value
Less than 12 months, Estimated fair value	6,789	15,038
12 months or more, Estimated fair value	0	0
Total, Estimated fair value	6,789	15,038
Held-to-maturity Securities, Unrealized Losses
Less than 12 months, Unrealized losses	240	885
12 months or more, Unrealized losses	0	0
Total, Unrealized losses	$ 240	$ 885

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Securities (Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Estimated fair value
Total	$ 1,253,521	$ 1,320,872
Debt Securities Other than Securities Pledged
Carrying value
Due in one year or less	10,489
Due after one year through five years	9,480
Due after five years through ten years	164,615
Due after ten years	298,594
Total	483,178
Estimated fair value
Due in one year or less	10,506
Due after one year through five years	9,641
Due after five years through ten years	168,579
Due after ten years	346,303
Total	$ 535,029

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Loans Receivable, Net (Summary of Loan Receivable) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	$ 21,366,026		$ 20,872,755
Deferred fees, premiums and accretable purchase accounting adjustments, net	(13,391)		(9,318)
Allowance for credit losses	(270,114)	$ (283,760)	(282,986)	$ (273,319)	$ (243,288)	$ (228,120)
Net loans	21,082,521		20,580,451
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	16,765,962		16,050,060
Commercial Portfolio Segment | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	3,766,551		3,575,641
Allowance for credit losses	(82,841)		(79,327)			(74,396)
Commercial Portfolio Segment | Construction
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	464,887		404,367
Allowance for credit losses	(12,820)		(7,267)			(6,816)
Commercial Portfolio Segment | Multi-family | Commercial real estate
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	7,566,131		7,122,840
Allowance for credit losses	(61,711)		(56,731)			(74,099)
Commercial Portfolio Segment | Commercial real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	4,968,393		4,947,212
Allowance for credit losses	(93,453)		(115,918)			(50,925)
Residential mortgage and consumer | Residential mortgage and consumer
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	3,887,917		4,119,894
Allowance for credit losses	(16,189)		(19,941)			(17,391)
Residential mortgage and consumer | Consumer and Other Loans
Accounts, Notes, Loans and Financing Receivable
Finance receivable gross, excluding accrued interest	712,147		702,801
Allowance for credit losses	$ (3,100)		$ (3,802)			$ (2,548)

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Loans Receivable, Net (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) loan	Jun. 30, 2020 USD ($) loan	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable
Interest income on non accrual loans			$ 538,000
Impairment charges			0		$ 2,200,000	$ 2,600,000
Loans that are 90 days past due and still accruing	$ 0		0
Loans deferred	599,000,000.0		$ 599,000,000.0
Minimum
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			30 days
Maximum
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			89 days
Watch | Minimum
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			30 days
Watch | Maximum
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			59 days
Multi-family
Accounts, Notes, Loans and Financing Receivable
Allowance for loan losses, charge-offs			$ 1,400,000
Proceeds from sale of other loans held-for-sale			$ 19,900,000
Commercial Portfolio Segment | Commercial real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable
Number loans modified as TDR in the last 12 months for which there was a default payment | loan			2
Recorded investment			$ 2,000,000.0
Proceeds from sale of other loans held-for-sale			$ 762,000
Residential mortgage and consumer | Residential mortgage and consumer
Accounts, Notes, Loans and Financing Receivable
Number loans modified as TDR in the last 12 months for which there was a default payment | loan			5	1
Recorded investment			$ 1,200,000	$ 201,000
Special Mention Residential | Minimum
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			60 days
Special Mention Residential | Maximum
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			89 days
Substandard Residential
Accounts, Notes, Loans and Financing Receivable
Delinquency period in days			90 days
Collateral Dependent Tdrs
Accounts, Notes, Loans and Financing Receivable
Allowance for loan losses, charge-offs	0	$ 163,000	$ 11,000	$ 163,000
Allowance for loan losses, individually evaluated for impairment	$ 1,400,000		$ 1,400,000		$ 1,400,000

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Loans Receivable, Net (Amortized Cost Basis By Year of Origination) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	$ 2,813,186	$ 3,374,318
Financing receivable, year two	3,202,106	2,888,650
Financing receivable, year three	2,626,367	3,075,527
Financing receivable, year four	2,722,706	2,191,782
Financing receivable, year five	1,906,555	2,623,693
Prior	6,857,156	5,601,930
Revolving Loans	1,237,950	1,116,855
Total	21,366,026	20,872,755
Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	2,772,657	3,187,159
Financing receivable, year two	3,035,638	2,334,785
Financing receivable, year three	2,116,823	2,343,220
Financing receivable, year four	1,922,015	1,757,257
Financing receivable, year five	1,471,969	1,937,053
Prior	5,018,754	4,287,483
Revolving Loans	1,147,849	1,041,715
Total	17,485,705	16,888,672
Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	40,529	165,411
Financing receivable, year two	145,968	420,542
Financing receivable, year three	343,718	549,354
Financing receivable, year four	603,475	272,717
Financing receivable, year five	248,550	398,588
Prior	808,269	465,806
Revolving Loans	52,142	43,014
Total	2,242,651	2,315,432
Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	21,748
Financing receivable, year two	16,496	118,387
Financing receivable, year three	149,728	156,097
Financing receivable, year four	156,642	60,571
Financing receivable, year five	71,132	114,002
Prior	392,897	357,909
Revolving Loans	30,970	2,232
Total	817,865	830,946
Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	4,004	14,936
Financing receivable, year three	16,098	26,856
Financing receivable, year four	40,574	101,237
Financing receivable, year five	114,904	174,050
Prior	637,236	490,732
Revolving Loans	6,989	29,894
Total	819,805	837,705
Commercial Portfolio Segment
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Total	16,765,962	16,050,060
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	469,577	1,073,970
Financing receivable, year two	912,581	852,690
Financing receivable, year three	798,984	429,831
Financing receivable, year four	390,373	261,893
Financing receivable, year five	242,858	223,708
Prior	617,139	482,236
Revolving Loans	335,039	251,313
Total	3,766,551	3,575,641
Commercial Portfolio Segment | Commercial and industrial | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	462,248	1,007,949
Financing receivable, year two	858,426	619,275
Financing receivable, year three	573,325	328,917
Financing receivable, year four	290,068	156,596
Financing receivable, year five	162,082	176,557
Prior	454,686	348,278
Revolving Loans	287,706	203,302
Total	3,088,541	2,840,874
Commercial Portfolio Segment | Commercial and industrial | Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	7,329	49,208
Financing receivable, year two	34,038	115,888
Financing receivable, year three	88,129	43,791
Financing receivable, year four	40,783	48,230
Financing receivable, year five	21,319	28,708
Prior	48,986	34,697
Revolving Loans	41,315	31,931
Total	281,899	352,453
Commercial Portfolio Segment | Commercial and industrial | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	16,813
Financing receivable, year two	16,113	111,399
Financing receivable, year three	133,747	48,887
Financing receivable, year four	55,574	14,770
Financing receivable, year five	12,822	14,102
Prior	81,686	76,554
Revolving Loans	1,500	798
Total	301,442	283,323
Commercial Portfolio Segment | Commercial and industrial | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	4,004	6,128
Financing receivable, year three	3,783	8,236
Financing receivable, year four	3,948	42,297
Financing receivable, year five	46,635	4,341
Prior	31,781	22,707
Revolving Loans	4,518	15,282
Total	94,669	98,991
Commercial Portfolio Segment | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	27,362	92,806
Financing receivable, year two	138,429	63,391
Financing receivable, year three	61,171	38,603
Financing receivable, year four	23,375	0
Financing receivable, year five	0	0
Prior	0	0
Revolving Loans	214,550	209,567
Total	464,887	404,367
Commercial Portfolio Segment | Construction | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	27,362	85,915
Financing receivable, year two	131,479	58,041
Financing receivable, year three	55,821	23,375
Financing receivable, year four	0	0
Financing receivable, year five	0	0
Prior	0	0
Revolving Loans	189,074	197,437
Total	403,736	364,768
Commercial Portfolio Segment | Construction | Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	6,891
Financing receivable, year two	6,950	5,350
Financing receivable, year three	0	0
Financing receivable, year four	0	0
Financing receivable, year five	0	0
Prior	0	0
Revolving Loans	0	0
Total	6,950	12,241
Commercial Portfolio Segment | Construction | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	0
Financing receivable, year three	5,350	15,228
Financing receivable, year four	23,375	0
Financing receivable, year five	0	0
Prior	0	0
Revolving Loans	25,476	0
Total	54,201	15,228
Commercial Portfolio Segment | Construction | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	0
Financing receivable, year three	0	0
Financing receivable, year four	0	0
Financing receivable, year five	0	0
Prior	0	0
Revolving Loans	0	12,130
Total	0	12,130
Residential mortgage and consumer | Residential mortgage and consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	652,580	557,570
Financing receivable, year two	558,517	464,815
Financing receivable, year three	333,342	441,638
Financing receivable, year four	301,888	546,716
Financing receivable, year five	383,277	415,964
Prior	1,658,221	1,693,094
Revolving Loans	92	97
Total	3,887,917	4,119,894
Residential mortgage and consumer | Residential mortgage and consumer | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	652,580	556,761
Financing receivable, year two	557,707	450,363
Financing receivable, year three	321,108	425,617
Financing receivable, year four	287,958	530,676
Financing receivable, year five	369,500	407,201
Prior	1,570,083	1,601,457
Revolving Loans	0	0
Total	3,758,936	3,972,075
Residential mortgage and consumer | Residential mortgage and consumer | Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	809
Financing receivable, year two	810	12,929
Financing receivable, year three	10,711	13,465
Financing receivable, year four	11,263	14,704
Financing receivable, year five	11,925	8,517
Prior	43,340	44,299
Revolving Loans	0	0
Total	78,049	94,723
Residential mortgage and consumer | Residential mortgage and consumer | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	0
Financing receivable, year three	0	584
Financing receivable, year four	734	0
Financing receivable, year five	0	0
Prior	3,075	3,402
Revolving Loans	0	0
Total	3,809	3,986
Residential mortgage and consumer | Residential mortgage and consumer | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	1,523
Financing receivable, year three	1,523	1,972
Financing receivable, year four	1,933	1,336
Financing receivable, year five	1,852	246
Prior	41,723	43,936
Revolving Loans	92	97
Total	47,123	49,110
Residential mortgage and consumer | Consumer and Other Loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	2,076	5,031
Financing receivable, year two	2,811	6,892
Financing receivable, year three	4,480	5,830
Financing receivable, year four	4,833	7,504
Financing receivable, year five	13,577	6,848
Prior	45,223	59,631
Revolving Loans	639,147	611,065
Total	712,147	702,801
Residential mortgage and consumer | Consumer and Other Loans | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	2,076	5,031
Financing receivable, year two	2,811	6,853
Financing receivable, year three	4,443	5,693
Financing receivable, year four	4,695	7,448
Financing receivable, year five	11,183	6,692
Prior	43,565	57,103
Revolving Loans	633,223	601,481
Total	701,996	690,301
Residential mortgage and consumer | Consumer and Other Loans | Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	39
Financing receivable, year three	37	137
Financing receivable, year four	137	56
Financing receivable, year five	2,057	156
Prior	511	440
Revolving Loans	4,288	7,655
Total	7,030	8,483
Residential mortgage and consumer | Consumer and Other Loans | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	0
Financing receivable, year three	0	0
Financing receivable, year four	0	0
Financing receivable, year five	0	0
Prior	7	292
Revolving Loans	1,148	1,184
Total	1,155	1,476
Residential mortgage and consumer | Consumer and Other Loans | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	0
Financing receivable, year three	0	0
Financing receivable, year four	1	0
Financing receivable, year five	337	0
Prior	1,140	1,796
Revolving Loans	488	745
Total	1,966	2,541
Multi-family | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	1,247,361	1,028,185
Financing receivable, year two	992,041	676,135
Financing receivable, year three	647,006	1,381,828
Financing receivable, year four	1,271,585	786,874
Financing receivable, year five	711,929	1,338,189
Prior	2,684,331	1,903,252
Revolving Loans	11,878	8,377
Total	7,566,131	7,122,840
Multi-family | Commercial Portfolio Segment | Commercial real estate | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	1,218,746	1,002,259
Financing receivable, year two	980,598	515,446
Financing receivable, year three	496,911	912,910
Financing receivable, year four	785,223	601,440
Financing receivable, year five	497,921	850,781
Prior	1,585,057	1,199,133
Revolving Loans	8,647	6,986
Total	5,573,103	5,088,955
Multi-family | Commercial Portfolio Segment | Commercial real estate | Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	28,615	21,366
Financing receivable, year two	11,443	153,404
Financing receivable, year three	135,748	374,363
Financing receivable, year four	398,023	135,348
Financing receivable, year five	149,954	299,413
Prior	514,744	220,668
Revolving Loans	1,340	0
Total	1,239,867	1,204,562
Multi-family | Commercial Portfolio Segment | Commercial real estate | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	4,560
Financing receivable, year two	0	0
Financing receivable, year three	3,555	86,119
Financing receivable, year four	71,712	32,506
Financing receivable, year five	43,175	48,020
Prior	198,600	205,916
Revolving Loans	0	0
Total	317,042	377,121
Multi-family | Commercial Portfolio Segment | Commercial real estate | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	7,285
Financing receivable, year three	10,792	8,436
Financing receivable, year four	16,627	17,580
Financing receivable, year five	20,879	139,975
Prior	385,930	277,535
Revolving Loans	1,891	1,391
Total	436,119	452,202
Commercial real estate | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	414,230	616,756
Financing receivable, year two	597,727	824,727
Financing receivable, year three	781,384	777,797
Financing receivable, year four	730,652	588,795
Financing receivable, year five	554,914	638,984
Prior	1,852,242	1,463,717
Revolving Loans	37,244	36,436
Total	4,968,393	4,947,212
Commercial real estate | Commercial Portfolio Segment | Commercial real estate | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	409,645	529,244
Financing receivable, year two	504,617	684,807
Financing receivable, year three	665,215	646,708
Financing receivable, year four	554,071	461,097
Financing receivable, year five	431,283	495,822
Prior	1,365,363	1,081,512
Revolving Loans	29,199	32,509
Total	3,959,393	3,931,699
Commercial real estate | Commercial Portfolio Segment | Commercial real estate | Watch
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	4,585	87,137
Financing receivable, year two	92,727	132,932
Financing receivable, year three	109,093	117,598
Financing receivable, year four	153,269	74,379
Financing receivable, year five	63,295	61,794
Prior	200,688	165,702
Revolving Loans	5,199	3,428
Total	628,856	642,970
Commercial real estate | Commercial Portfolio Segment | Commercial real estate | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	375
Financing receivable, year two	383	6,988
Financing receivable, year three	7,076	5,279
Financing receivable, year four	5,247	13,295
Financing receivable, year five	15,135	51,880
Prior	109,529	71,745
Revolving Loans	2,846	250
Total	140,216	149,812
Commercial real estate | Commercial Portfolio Segment | Commercial real estate | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
Financing receivable, year one	0	0
Financing receivable, year two	0	0
Financing receivable, year three	0	8,212
Financing receivable, year four	18,065	40,024
Financing receivable, year five	45,201	29,488
Prior	176,662	144,758
Revolving Loans	0	249
Total	$ 239,928	$ 222,731

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Loans Receivable, Net (Payment Status of the Recorded Investment in Past Due Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due
Financing receivables gross	$ 21,366,026	$ 20,872,755
Total Past Due
Financing Receivable, Past Due
Financing receivables gross	113,957	124,042
30-59 Days
Financing Receivable, Past Due
Financing receivables gross	44,583	40,625
60-89 Days
Financing Receivable, Past Due
Financing receivables gross	17,067	11,300
Greater than 90 Days
Financing Receivable, Past Due
Financing receivables gross	52,307	72,117
Current
Financing Receivable, Past Due
Financing receivables gross	21,252,069	20,748,713
Commercial Portfolio Segment
Financing Receivable, Past Due
Financing receivables gross	16,765,962	16,050,060
Commercial Portfolio Segment | Construction
Financing Receivable, Past Due
Financing receivables gross	464,887	404,367
Commercial Portfolio Segment | Total Past Due
Financing Receivable, Past Due
Financing receivables gross	65,944	67,787
Commercial Portfolio Segment | Total Past Due | Construction
Financing Receivable, Past Due
Financing receivables gross	0	0
Commercial Portfolio Segment | 30-59 Days
Financing Receivable, Past Due
Financing receivables gross	31,483	21,212
Commercial Portfolio Segment | 30-59 Days | Construction
Financing Receivable, Past Due
Financing receivables gross	0	0
Commercial Portfolio Segment | 60-89 Days
Financing Receivable, Past Due
Financing receivables gross	11,794	5,566
Commercial Portfolio Segment | 60-89 Days | Construction
Financing Receivable, Past Due
Financing receivables gross	0	0
Commercial Portfolio Segment | Greater than 90 Days
Financing Receivable, Past Due
Financing receivables gross	22,667	41,009
Commercial Portfolio Segment | Greater than 90 Days | Construction
Financing Receivable, Past Due
Financing receivables gross	0	0
Commercial Portfolio Segment | Current
Financing Receivable, Past Due
Financing receivables gross	16,700,018	15,982,273
Commercial Portfolio Segment | Current | Construction
Financing Receivable, Past Due
Financing receivables gross	464,887	404,367
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Past Due
Financing receivables gross	3,766,551	3,575,641
Commercial Portfolio Segment | Commercial and industrial | Total Past Due
Financing Receivable, Past Due
Financing receivables gross	17,689	5,871
Commercial Portfolio Segment | Commercial and industrial | 30-59 Days
Financing Receivable, Past Due
Financing receivables gross	14,538	986
Commercial Portfolio Segment | Commercial and industrial | 60-89 Days
Financing Receivable, Past Due
Financing receivables gross	40	3,116
Commercial Portfolio Segment | Commercial and industrial | Greater than 90 Days
Financing Receivable, Past Due
Financing receivables gross	3,111	1,769
Commercial Portfolio Segment | Commercial and industrial | Current
Financing Receivable, Past Due
Financing receivables gross	3,748,862	3,569,770
Commercial Portfolio Segment | Multi-family | Commercial real estate
Financing Receivable, Past Due
Financing receivables gross	7,566,131	7,122,840
Commercial Portfolio Segment | Multi-family | Commercial real estate | Total Past Due
Financing Receivable, Past Due
Financing receivables gross	40,515	40,305
Commercial Portfolio Segment | Multi-family | Commercial real estate | 30-59 Days
Financing Receivable, Past Due
Financing receivables gross	16,228	7,421
Commercial Portfolio Segment | Multi-family | Commercial real estate | 60-89 Days
Financing Receivable, Past Due
Financing receivables gross	11,126	0
Commercial Portfolio Segment | Multi-family | Commercial real estate | Greater than 90 Days
Financing Receivable, Past Due
Financing receivables gross	13,161	32,884
Commercial Portfolio Segment | Multi-family | Commercial real estate | Current
Financing Receivable, Past Due
Financing receivables gross	7,525,616	7,082,535
Commercial Portfolio Segment | Commercial real estate | Commercial real estate
Financing Receivable, Past Due
Financing receivables gross	4,968,393	4,947,212
Commercial Portfolio Segment | Commercial real estate | Commercial real estate | Total Past Due
Financing Receivable, Past Due
Financing receivables gross	7,740	21,611
Commercial Portfolio Segment | Commercial real estate | Commercial real estate | 30-59 Days
Financing Receivable, Past Due
Financing receivables gross	717	12,805
Commercial Portfolio Segment | Commercial real estate | Commercial real estate | 60-89 Days
Financing Receivable, Past Due
Financing receivables gross	628	2,450
Commercial Portfolio Segment | Commercial real estate | Commercial real estate | Greater than 90 Days
Financing Receivable, Past Due
Financing receivables gross	6,395	6,356
Commercial Portfolio Segment | Commercial real estate | Commercial real estate | Current
Financing Receivable, Past Due
Financing receivables gross	4,960,653	4,925,601
Residential mortgage and consumer | Residential mortgage and consumer
Financing Receivable, Past Due
Financing receivables gross	3,887,917	4,119,894
Residential mortgage and consumer | Consumer and Other Loans
Financing Receivable, Past Due
Financing receivables gross	712,147	702,801
Residential mortgage and consumer | Total Past Due | Residential mortgage and consumer
Financing Receivable, Past Due
Financing receivables gross	40,821	47,150
Residential mortgage and consumer | Total Past Due | Consumer and Other Loans
Financing Receivable, Past Due
Financing receivables gross	7,192	9,105
Residential mortgage and consumer | 30-59 Days | Residential mortgage and consumer
Financing Receivable, Past Due
Financing receivables gross	8,510	13,768
Residential mortgage and consumer | 30-59 Days | Consumer and Other Loans
Financing Receivable, Past Due
Financing receivables gross	4,590	5,645
Residential mortgage and consumer | 60-89 Days | Residential mortgage and consumer
Financing Receivable, Past Due
Financing receivables gross	4,118	4,258
Residential mortgage and consumer | 60-89 Days | Consumer and Other Loans
Financing Receivable, Past Due
Financing receivables gross	1,155	1,476
Residential mortgage and consumer | Greater than 90 Days | Residential mortgage and consumer
Financing Receivable, Past Due
Financing receivables gross	28,193	29,124
Residential mortgage and consumer | Greater than 90 Days | Consumer and Other Loans
Financing Receivable, Past Due
Financing receivables gross	1,447	1,984
Residential mortgage and consumer | Current | Residential mortgage and consumer
Financing Receivable, Past Due
Financing receivables gross	3,847,096	4,072,744
Residential mortgage and consumer | Current | Consumer and Other Loans
Financing Receivable, Past Due
Financing receivables gross	$ 704,955	$ 693,696

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Loans Receivable, Net (Non-Accrual Loans Status) (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Past Due
Non-accrual: # of loans	280	311
Non-accrual, Amount | $	$ 77,607	$ 107,125
Financing Receivables, 1 to 29 Days Past Due
Financing Receivable, Past Due
Non-accrual: # of loans	34	35
Non-accrual, Amount | $	$ 9,454	$ 9,541
TDR 30-89 days delinquent classified as non-accrual:
Financing Receivable, Past Due
Non-accrual: # of loans	9	11
Non-accrual, Amount | $	$ 497	$ 2,722
Multi-family
Financing Receivable, Past Due
Non-accrual: # of loans	3
Commercial real estate | Commercial real estate | Commercial Portfolio Segment | TDR 30-89 days delinquent classified as non-accrual:
Financing Receivable, Past Due
Non-accrual: # of loans	1	1
Non-accrual, Amount | $	$ 170	$ 1,780
Commercial Portfolio Segment
Financing Receivable, Past Due
Non-accrual: # of loans	48	65
Non-accrual, Amount | $	$ 34,784	$ 60,673
Commercial Portfolio Segment | Construction
Financing Receivable, Past Due
Non-accrual: # of loans	0	0
Non-accrual, Amount | $	$ 0	$ 0
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Past Due
Non-accrual: # of loans	13	21
Non-accrual, Amount | $	$ 5,200	$ 9,212
Commercial Portfolio Segment | Multi-family | Commercial real estate
Financing Receivable, Past Due
Non-accrual: # of loans	11	15
Non-accrual, Amount | $	$ 16,557	$ 35,567
Commercial Portfolio Segment | Commercial real estate | Commercial real estate
Financing Receivable, Past Due
Non-accrual: # of loans	24	29
Non-accrual, Amount | $	$ 13,027	$ 15,894
Commercial Portfolio Segment | Commercial real estate | Commercial real estate | Financing Receivables, 1 to 29 Days Past Due
Financing Receivable, Past Due
Non-accrual: # of loans	3	3
Non-accrual, Amount | $	$ 4,360	$ 3,907
Residential mortgage and consumer | Residential mortgage and consumer
Financing Receivable, Past Due
Non-accrual: # of loans	232	246
Non-accrual, Amount | $	$ 42,823	$ 46,452
Residential mortgage and consumer | Residential mortgage and consumer | Financing Receivables, 1 to 29 Days Past Due
Financing Receivable, Past Due
Non-accrual: # of loans	31	32
Non-accrual, Amount | $	$ 5,094	$ 5,634
Residential mortgage and consumer | Residential mortgage and consumer | TDR 30-89 days delinquent classified as non-accrual:
Financing Receivable, Past Due
Non-accrual: # of loans	8	10
Non-accrual, Amount | $	$ 327	$ 942

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Loans Receivable, Net (Collateral Dependent Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	$ 47,843	$ 72,046
Construction
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	0	0
Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	24,454	46,785
Total commercial loans | Multi-family
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	13,923	31,484
Residential mortgage and consumer
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	23,389	25,261
Commercial and industrial | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	3,075	6,543
Commercial real estate | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	7,456	8,758
Real Estate Loan
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	47,322	68,394
Real Estate Loan | Construction
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	0	0
Real Estate Loan | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	24,024	43,236
Real Estate Loan | Total commercial loans | Multi-family
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	13,923	31,484
Real Estate Loan | Residential mortgage and consumer
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	23,298	25,158
Real Estate Loan | Commercial and industrial | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	2,645	2,994
Real Estate Loan | Commercial real estate | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	7,456	8,758
Other
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	521	3,652
Other | Construction
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	0	0
Other | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	430	3,549
Other | Total commercial loans | Multi-family
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	0	0
Other | Residential mortgage and consumer
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	91	103
Other | Commercial and industrial | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	430	3,549
Other | Commercial real estate | Total commercial loans
Accounts, Notes, Loans and Financing Receivable
Collateral-dependent loans	$ 0	$ 0

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Loans Receivable, Net (Troubled Debt Restructured Loans) (Details) $ in Thousands	Jun. 30, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring
Accrual, number of loans | loan	49	47
Accrual, amount | $	$ 9,310	$ 9,232
Non-accrual, number of loans | loan	80	89
Non-accrual, amount | $	$ 19,039	$ 25,265
Number of loans | loan	129	136
Troubled debt restructuring, Amount | $	$ 28,349	$ 34,497
Commercial Portfolio Segment
Financing Receivable, Troubled Debt Restructuring
Accrual, number of loans | loan	1	2
Accrual, amount | $	$ 430	$ 630
Non-accrual, number of loans | loan	4	6
Non-accrual, amount | $	$ 4,530	$ 8,606
Number of loans | loan	5	8
Troubled debt restructuring, Amount | $	$ 4,960	$ 9,236
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring
Accrual, number of loans | loan	1	2
Accrual, amount | $	$ 430	$ 630
Non-accrual, number of loans | loan	0	2
Non-accrual, amount | $	$ 0	$ 2,919
Number of loans | loan	1	4
Troubled debt restructuring, Amount | $	$ 430	$ 3,549
Commercial Portfolio Segment | Commercial real estate | Commercial real estate
Financing Receivable, Troubled Debt Restructuring
Accrual, number of loans | loan	0	0
Accrual, amount | $	$ 0	$ 0
Non-accrual, number of loans | loan	4	4
Non-accrual, amount | $	$ 4,530	$ 5,687
Number of loans | loan	4	4
Troubled debt restructuring, Amount | $	$ 4,530	$ 5,687
Residential mortgage and consumer | Residential mortgage and consumer
Financing Receivable, Troubled Debt Restructuring
Accrual, number of loans | loan	48	45
Accrual, amount | $	$ 8,880	$ 8,602
Non-accrual, number of loans | loan	76	83
Non-accrual, amount | $	$ 14,509	$ 16,659
Number of loans | loan	124	128
Troubled debt restructuring, Amount | $	$ 23,389	$ 25,261

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Loans Receivable, Net (Schedule of Troubled Debt Restructurings) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) loan	Jun. 30, 2020 USD ($) loan	Jun. 30, 2021 USD ($) loan	Jun. 30, 2020 USD ($) loan
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Allowance for Credit Loss
Number of Loans | loan			0	1
Pre-modification Recorded Investment			$ 0	$ 933
Post- modification Recorded Investment			$ 0	$ 933
Number of Loans | loan			0	1
Pre-modification Interest Yield (percentage)			0.00%	4.75%
Post- modification Interest Yield (percentage)			0.00%	4.75%
Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Number of Loans | loan	1	1
Pre-modification Recorded Investment	$ 170	$ 1,330
Post- modification Recorded Investment	$ 170	$ 1,330
Commercial Portfolio Segment | Commercial real estate | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Number of Loans | loan			1	1
Pre-modification Recorded Investment			$ 170	$ 1,330
Post- modification Recorded Investment			$ 170	$ 1,330
Number of Loans | loan	1	1	1	1
Pre-modification Interest Yield (percentage)	6.00%	3.88%	6.00%	3.88%
Post- modification Interest Yield (percentage)	6.00%	3.88%	6.00%	3.88%
Residential mortgage and consumer
Financing Receivable, Allowance for Credit Loss
Number of Loans | loan	4	0
Pre-modification Recorded Investment	$ 226	$ 0
Post- modification Recorded Investment	$ 226	$ 0
Residential mortgage and consumer | Residential mortgage and consumer
Financing Receivable, Allowance for Credit Loss
Number of Loans | loan			4	0
Pre-modification Recorded Investment			$ 226	$ 0
Post- modification Recorded Investment			$ 226	$ 0
Number of Loans | loan	4	0	4	0
Pre-modification Interest Yield (percentage)	6.82%	0.00%	6.82%	0.00%
Post- modification Interest Yield (percentage)	3.07%	0.00%	3.07%	0.00%

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Allowance for Credit Losses (Narrative) (Details) $ in Millions	Jun. 30, 2021 USD ($)
Credit Loss [Abstract]
Accrued interest receivable	$ 70.5
Held-to-maturity, accrued interest receivable	$ 4.5

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Allowance for Credit Losses (Provisions) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Credit Loss [Abstract]
Provision for loan losses	$ (14,452)	$ 29,924	$ (15,413)	$ 56,676	$ 64,890
Provision for debt securities held-to-maturity	(259)	249	(1,185)	680	$ 700
Provision for off-balance sheet credit exposures	5,021	3,105	3,936	7,148
Provision for credit losses	$ (9,690)	$ 33,278	$ (12,662)	$ 64,504

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Allowance for Credit Losses (Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period	$ 283,760	$ 243,288	$ 282,986	$ 228,120	$ 228,120
Gross charge offs	(697)	(5,058)	(1,378)	(15,988)	(18,388)
Recoveries	1,503	985	3,919	3,882	7,735
Net charge-offs	806	(4,073)	2,541	(12,106)
Allowance at acquisition on loans purchased with credit deterioration	0	4,180	0	4,180	4,180
Provision for credit loss expense	(14,452)	29,924	(15,413)	56,676	64,890
Balance at end of the period	$ 270,114	$ 273,319	270,114	273,319	282,986
Adjustment
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			$ 0	$ (3,551)	(3,551)
Balance at end of the period					$ 0

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Allowance for Credit Losses (By Portfolio Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period	$ 283,760	$ 243,288	$ 282,986	$ 228,120	$ 228,120
Charge-offs	(697)	(5,058)	(1,378)	(15,988)	(18,388)
Recoveries	1,503	985	3,919	3,882	7,735
Allowance at acquisition on loans purchased with credit deterioration	0	4,180	0	4,180	4,180
Provision for credit loss expense	(14,452)	29,924	(15,413)	56,676	64,890
Balance at end of the period	270,114	$ 273,319	270,114	273,319	282,986
Unallocated
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			0	1,945	1,945
Charge-offs			0		0
Recoveries			0		0
Allowance at acquisition on loans purchased with credit deterioration					0
Provision for credit loss expense			0		0
Balance at end of the period	0		0		0
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			79,327	74,396	74,396
Charge-offs			(615)		(12,005)
Recoveries			972		4,459
Allowance at acquisition on loans purchased with credit deterioration					287
Provision for credit loss expense			3,157		19,701
Balance at end of the period	82,841		82,841		79,327
Commercial Portfolio Segment | Construction Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			7,267	6,816	6,816
Charge-offs			0		0
Recoveries			0		0
Allowance at acquisition on loans purchased with credit deterioration					127
Provision for credit loss expense			5,553		2,225
Balance at end of the period	12,820		12,820		7,267
Residential mortgage and consumer | Residential Mortgage Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			19,941	17,391	17,391
Charge-offs			(158)		(1,190)
Recoveries			934		677
Allowance at acquisition on loans purchased with credit deterioration					344
Provision for credit loss expense			(4,528)		(17,370)
Balance at end of the period	16,189		16,189		19,941
Residential mortgage and consumer | Consumer and Other Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			3,802	2,548	2,548
Charge-offs			(8)		(41)
Recoveries			76		222
Allowance at acquisition on loans purchased with credit deterioration					5
Provision for credit loss expense			(770)		(1,021)
Balance at end of the period	3,100		3,100		3,802
Multi-family | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			56,731	74,099	74,099
Charge-offs			(479)		(4,631)
Recoveries			1,863		1,965
Allowance at acquisition on loans purchased with credit deterioration					209
Provision for credit loss expense			3,596		(5,170)
Balance at end of the period	61,711		61,711		56,731
Commercial real estate | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			115,918	50,925	50,925
Charge-offs			(118)		(521)
Recoveries			74		412
Allowance at acquisition on loans purchased with credit deterioration					3,208
Provision for credit loss expense			(22,421)		66,525
Balance at end of the period	$ 93,453		93,453		115,918
Adjustment
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period			$ 0	(3,551)	(3,551)
Balance at end of the period					0
Adjustment | Unallocated
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				(1,945)	(1,945)
Adjustment | Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				(7,511)	(7,511)
Adjustment | Commercial Portfolio Segment | Construction Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				(1,901)	(1,901)
Adjustment | Residential mortgage and consumer | Residential Mortgage Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				20,089	20,089
Adjustment | Residential mortgage and consumer | Consumer and Other Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				2,089	2,089
Adjustment | Multi-family | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				(9,741)	(9,741)
Adjustment | Commercial real estate | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				(4,631)	(4,631)
Adjusted Balance
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				224,569	224,569
Adjusted Balance | Unallocated
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				0	0
Adjusted Balance | Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				66,885	66,885
Adjusted Balance | Commercial Portfolio Segment | Construction Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				4,915	4,915
Adjusted Balance | Residential mortgage and consumer | Residential Mortgage Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				37,480	37,480
Adjusted Balance | Residential mortgage and consumer | Consumer and Other Loans
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				4,637	4,637
Adjusted Balance | Multi-family | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				64,358	64,358
Adjusted Balance | Commercial real estate | Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss
Balance at beginning of the period				$ 46,294	$ 46,294

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Allowance for Credit Losses (Held To Maturity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period	$ 2,338	$ 2,995	$ 3,264	$ 0	$ 0
Provision for credit losses	(259)	249	(1,185)	680	700
Balance at end of the period	$ 2,079	$ 3,244	2,079	3,244	3,264
Adjustment
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period			$ 0	$ 2,564	2,564
Balance at end of the period					$ 0

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Allowance for Credit Losses (Held to Maturity by Portfolio) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period	$ 2,338	$ 2,995	$ 3,264	$ 0	$ 0
Provision for credit losses	(259)	249	(1,185)	680	700
Balance at end of the period	2,079	$ 3,244	2,079	3,244	3,264
Adjustment
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period			0	2,564	2,564
Balance at end of the period					0
Municipal bonds
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period			34	0	0
Provision for credit losses			(10)		17
Balance at end of the period	24		24		34
Municipal bonds | Adjustment
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period				17	17
Corporate and other debt securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period			3,230	0	0
Provision for credit losses			(1,175)		683
Balance at end of the period	$ 2,055		$ 2,055		3,230
Corporate and other debt securities | Adjustment
Debt Securities, Held-to-maturity, Allowance for Credit Loss
Balance at beginning of the period				$ 2,547	$ 2,547

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Allowance for Credit Losses (Off Balance Sheet) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Off-Balance Sheet, Credit Loss, Liability
Balance at beginning of the period	$ 16,582	$ 17,142	$ 17,667	$ 425
Provision for credit losses	5,021	3,105	3,936	7,148
Balance at end of the period	$ 21,603	$ 20,247	21,603	20,247
Adjustment
Off-Balance Sheet, Credit Loss, Liability
Balance at beginning of the period			$ 0	$ 12,674

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Deposits (Summary of Deposits) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Non-interest bearing:
Checking accounts	$ 4,169,816	$ 3,663,073
Interest bearing:
Checking accounts	6,354,368	6,043,393
Money market deposits	4,551,806	5,037,327
Savings	2,076,711	2,063,447
Certificates of deposit	2,286,265	2,718,179
Total deposits	$ 19,438,966	$ 19,525,419

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Goodwill and Other Intangible Assets (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets
Gross Intangible Asset	$ 40,689	$ 41,772
Accumulated Amortization	(25,929)	(25,664)
Valuation Allowance	(73)	(1,010)
Net Intangible Assets	14,687	15,098
Goodwill	94,535	94,535
Goodwill and intangible assets	109,222	109,633
Mortgage servicing rights
Finite-Lived Intangible Assets
Gross Intangible Asset	16,776	17,559
Accumulated Amortization	(5,581)	(5,592)
Valuation Allowance	(73)	(1,010)
Net Intangible Assets	11,122	10,957
Core deposit premiums
Finite-Lived Intangible Assets
Gross Intangible Asset	23,063	23,063
Accumulated Amortization	(20,041)	(19,503)
Valuation Allowance	0	0
Net Intangible Assets	3,022	3,560
Other
Finite-Lived Intangible Assets
Gross Intangible Asset	850	1,150
Accumulated Amortization	(307)	(569)
Valuation Allowance	0	0
Net Intangible Assets	$ 543	$ 581

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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets
Loans sold	$ 1,540,000	$ 1,540,000	$ 1,690,000
Estimated fair value of servicing asset in intangible assets	11,900	$ 11,900	11,200
Weighted average discount rate of servicing assets (percentage)		11.32%
Weighted average constant prepayment rate on mortgages (percentage)		14.76%
Weighted average life of servicing assets, years (in years)		5 years 1 month 6 days
Finite lived intangible assets valuation allowance	73	$ 73	1,010
Mortgage servicing rights
Finite-Lived Intangible Assets
Finite lived intangible assets valuation allowance	73	73	1,010
Increase (decrease) to the valuation allowance of finite lived intangible assets	13
Core deposit premiums
Finite-Lived Intangible Assets
Finite lived intangible assets valuation allowance	$ 0	$ 0	0
Useful life, years (in years)		10 years
Gold Coast Bancorp, Inc. | Core deposit premiums
Finite-Lived Intangible Assets
Core deposit premiums			$ 2,500

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Leases (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Lessee, Lease, Description
Right of use assets	$ 1.6
Lease liability	$ 1.6
Finance lease, asset extensible list	Other assets	Other assets
Finance lease, liability extensible list	Other liabilities	Other liabilities
Maximum
Lessee, Lease, Description
Remaining lease term (in years)	15 years
Renewal term (in years)	10 years

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Leases (Supplemental Balance Sheet Information) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 200,425	$ 199,981
Operating lease liabilities	$ 213,050	$ 212,559
Weighted average remaining lease term (in years)	8 years 10 months 24 days	9 years 4 months 24 days
Weighted average discount rate (percentage)	2.44%	2.49%

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Leases (Supplemental Income and Expense Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Included in office occupancy and equipment expense:
Operating lease cost	$ 7,280	$ 6,526	$ 14,429	$ 12,807
Short-term lease cost	214	103	430	189
Included in other income:
Sublease income	$ 35	$ 51	$ 86	$ 118

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Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$ 7,271	$ 5,872	$ 14,533	$ 11,579
Operating lease liabilities arising from obtaining right-of-use assets (non-cash):
Operating leases	$ 11,066	$ 7,278	$ 13,234	$ 7,837

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Leases (Maturity of Lease Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due
2021	$ 14,535	$ 28,844
2022	28,986	27,448
2023	27,937	26,354
2024	27,912	26,300
2025	27,267	25,496
Thereafter	111,198	104,729
Total lease payments	237,835	239,171
Less: Imputed interest	(24,785)	(26,612)
Total operating lease liabilities	$ 213,050	$ 212,559

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Equity Incentive Plan (Narrative) (Details) - USD ($) $ in Millions		6 Months Ended
	Jun. 09, 2015	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award
Total stock options granted (shares)		0	0
Compensation not yet recognized		$ 3.7
Compensation cost not yet recognized, period for recognition (in years)		10 months 6 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Shares granted (shares)		239,166	68,923
Compensation cost not yet recognized, period for recognition (in years)		2 years 1 month 9 days
Compensation not yet recognized, restricted stock		$ 15.2
2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares authorized (shares)	30,881,296
2015 Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares authorized (shares)	13,234,841
2015 Plan | Equity Option
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares authorized (shares)	17,646,455
Expiration period (in years)	10 years
Minimum | 2015 Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)	5 years
Minimum | 2015 Plan | Equity Option
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)	5 years
Maximum | 2015 Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)	7 years
Maximum | 2015 Plan | Equity Option
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (in years)	7 years

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Equity Incentive Plan (Shares-based compensation expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock option expense	$ 947	$ 1,011	$ 1,857	$ 1,999
Restricted stock expense	2,760	2,943	5,310	5,844
Total share-based compensation expense	$ 3,707	$ 3,954	$ 7,167	$ 7,843

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Equity Incentive Plan (Summary of Stock Option Activity and Related Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Number of Stock Options
Beginning balance (shares)	5,570,858
Granted (shares)	0	0
Exercised (shares)	(417,605)
Forfeited (shares)	(31,429)
Expired (shares)	(14,286)
Ending balance (shares)	5,107,538		5,570,858
Exercisable at period end (shares)	4,196,262
Weighted Average Exercise Price
Beginning balance (usd per share)	$ 12.46
Granted (usd per share)	0
Exercised (usd per share)	12.12
Forfeited (usd per share)	12.54
Expired (usd per share)	12.54
Ending balance (usd per share)	12.49		$ 12.46
Exercisable end of the year (usd per share)	$ 12.48
Weighted Average Remaining Contractual Life (in years)	4 years 1 month 6 days		4 years 6 months
Weighted average shares exercised (in years)	3 years 10 months 24 days
Weighted Average Remaining Contractual Life, Exercisable (in years)	4 years
Aggregate Intrinsic Value	$ 9,059		$ 191
Aggregate Intrinsic Value, Exercisable	$ 7,478

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Equity Incentive Plan (Restricted Stock) (Details) - Restricted Stock - $ / shares	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Number of Shares Awarded
Beginning balance (shares)	1,974,235
Granted (shares)	239,166	68,923
Vested (shares)	(775,097)
Forfeited (shares)	(20,567)
Ending balance (shares)	1,417,737
Weighted Average Grant Date Fair Value
Beginning balance (usd per share)	$ 12.44
Granted (usd per share)	13.17
Vested (usd per share)	12.39
Forfeited (usd per share)	11.70
Ending balance (usd per share)	$ 12.47

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Net Periodic Benefit Plan Expense (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Retirement Benefits [Abstract]
Maximum annual contributions per employee, percent (percentage)			60.00%
Annual benefit, period (in months)			36 months
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Interest cost	$ 250,000	$ 324,000	$ 500,000	$ 648,000
Net loss	142,000	299,000	284,000	598,000
Total net periodic benefit cost	$ 392,000	$ 623,000	784,000	$ 1,246,000
Multi-employer contributions			$ 0

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Derivatives and Hedging Activities (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) derivative
Derivative
Interest rate swaps terminated | derivative					2
Derivative contracts | Cash Flow Hedging
Derivative
Interest rate swaps terminated | derivative					4
Notional amounts of swaps terminated					$ 400,000,000.0
Derivative contracts | Fair Value Hedging
Derivative
Notional amounts of swaps terminated					$ 475,000,000.0
Derivatives designated as hedging instruments: | Derivative contracts
Derivative
Hedging term (months)			19 months
Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense			$ 41,700,000
Fee income from derivative instrument	$ 0	$ 0	$ 1,800,000	$ 1,000,000.0

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Derivatives and Hedging Activities (Fair Value of Derivative Instruments on the Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Asset Derivatives
Asset Derivatives
Netting Adjustments	$ 29,802	$ 997
Net Derivatives on the Balance Sheet	19,181	34,577
Cash Collateral	0	0
Net Derivative Amounts	19,181	34,577
Liability Derivatives
Liability Derivatives
Netting Adjustments	102,063	149,046
Net Derivatives on the Balance Sheet	6,332	492
Cash Collateral	0	237
Net Derivative Amounts	6,332	255
Derivatives designated as hedging instruments: | Asset Derivatives
Asset Derivatives
Fair Value	24,946	1,419
Derivatives designated as hedging instruments: | Liability Derivatives
Liability Derivatives
Fair Value	84,212	115,166
Derivatives not designated as hedging instruments: | Asset Derivatives
Asset Derivatives
Fair Value	24,037	34,155
Derivatives not designated as hedging instruments: | Liability Derivatives
Liability Derivatives
Fair Value	24,183	34,372
Interest rate swaps | Derivatives designated as hedging instruments: | Asset Derivatives
Asset Derivatives
Notional Amount	1,150,000	400,000
Fair Value	24,946	1,419
Interest rate swaps | Derivatives designated as hedging instruments: | Liability Derivatives
Liability Derivatives
Notional Amount	2,425,000	2,925,000
Fair Value	84,212	115,166
Interest rate swaps | Derivatives not designated as hedging instruments: | Asset Derivatives
Asset Derivatives
Notional Amount	689,000	641,000
Fair Value	24,037	34,155
Interest rate swaps | Derivatives not designated as hedging instruments: | Liability Derivatives
Liability Derivatives
Notional Amount	689,000	641,000
Fair Value	24,037	34,155
Other Contracts | Derivatives not designated as hedging instruments: | Asset Derivatives
Asset Derivatives
Notional Amount	0	0
Fair Value	0	0
Other Contracts | Derivatives not designated as hedging instruments: | Liability Derivatives
Liability Derivatives
Notional Amount	34,000	34,000
Fair Value	$ 146	$ 217

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Derivatives and Hedging Activities (Effective Derivative Instrument) (Details) - Derivative contracts - Cash Flow Hedging - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments, Gain (Loss)
Amount of (loss) gain recognized in other comprehensive income (loss)	$ (13,940)	$ (17,040)	$ 34,181	$ (117,401)
Interest expense
Derivative Instruments, Gain (Loss)
Amount of loss reclassified from accumulated other comprehensive income (loss) to interest expense	$ (10,468)	$ (6,628)	$ (20,487)	$ (8,717)

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Derivatives and Hedging Activities (Location in the Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Amount of loss reclassified from accumulated other comprehensive income (loss)	$ 194,710	$ 181,987	$ 375,445	$ 355,270
Derivative not designated as hedging instruments	(38)	4	71	(125)
Interest contracts
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Total amounts of income and expense line items presented in the income statement in which the effects of fair value are recorded	(10,489)	(9,003)	(20,480)	(11,511)
Interest contracts | Fair Value Hedging | Interest income
Fair Value Hedges - Gain or (loss) on relationships in Subtopic 815-20
Hedged items	189	(2,239)	(50)	4,530
Derivatives designated as hedging instruments	(210)	(136)	57	(7,324)
Interest contracts | Cash Flow Hedging | Interest expense | Cash flow hedge | Amount of loss reclassified from accumulated other comprehensive income (loss)
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Amount of loss reclassified from accumulated other comprehensive income (loss)	(10,468)	(6,628)	(20,487)	(8,717)
Interest contracts | Cash Flow Hedging | Other expense
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) as a result that a forecasted transaction is no longer probable of occurring	0	0	0	0
Other Contracts | Other income / (expense)
Cash Flow Hedges - Gain or (loss) on relationships in Subtopic 815-20
Derivative not designated as hedging instruments	$ (38)	$ 4	$ 71	$ (125)

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Derivatives and Hedging Activities (Cumulative Basis Adjustment for Fair Value Hedges) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying Amount of the Hedged Assets/(Liabilities)	$ 149,951	$ 0
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)	5,810	$ 8,798
Amortized cost basis of hedged item	396,600
Cumulative adjustment basis of hedged item	5,800
Hedging adjustment on discontinued hedging relationships	$ 5,900

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Comprehensive Income (Components of Comprehensive Income (Loss), Gross and Net Of Tax) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss)
Net income, gross	$ 109,036	$ 58,829	$ 208,385	$ 112,988
Net income, tax	(29,229)	(16,218)	(56,303)	(30,865)
Net income	79,807	42,611	152,082	82,123
Other comprehensive (loss) income, gross	(7,864)	(10,754)	26,286	(59,265)
Other comprehensive (loss) income, tax	2,005	2,904	(8,636)	18,651
Total other comprehensive (loss) income	(5,859)	(7,850)	17,650	(40,614)
Comprehensive income, gross	101,172	48,075	234,671	53,723
Comprehensive income, tax	(27,224)	(13,314)	(64,939)	(12,214)
Total comprehensive income	73,948	34,761	169,732	41,509
Change in funded status of retirement obligations
Accumulated Other Comprehensive Income (Loss)
Other comprehensive (loss) income, gross	170	416	338	444
Other comprehensive (loss) income, tax	(48)	(117)	(95)	(125)
Total other comprehensive (loss) income	122	299	243	319
Unrealized losses on debt securities available-for-sale
Accumulated Other Comprehensive Income (Loss)
Other comprehensive (loss) income, gross	(4,869)	(1,216)	(28,919)	48,193
Other comprehensive (loss) income, tax	1,161	219	6,891	(11,562)
Total other comprehensive (loss) income	(3,708)	(997)	(22,028)	36,631
Accretion of loss on debt securities reclassified to held-to-maturity from available-for-sale
Accumulated Other Comprehensive Income (Loss)
Other comprehensive (loss) income, gross	39	73	80	147
Other comprehensive (loss) income, tax	(9)	(17)	(19)	(35)
Total other comprehensive (loss) income	30	56	61	112
Reclassification adjustment for security gains included in net income
Accumulated Other Comprehensive Income (Loss)
Other comprehensive (loss) income, gross			(398)	0
Other comprehensive (loss) income, tax			99	0
Total other comprehensive (loss) income			(299)	0
Other-than-temporary impairment accretion on debt securities recorded prior to January 1, 2020
Accumulated Other Comprehensive Income (Loss)
Other comprehensive (loss) income, gross	268	385	517	635
Other comprehensive (loss) income, tax	(75)	(108)	(145)	(178)
Total other comprehensive (loss) income	193	277	372	457
Net losses on derivatives
Accumulated Other Comprehensive Income (Loss)
Other comprehensive (loss) income, gross	(3,472)	(10,412)	54,668	(108,684)
Other comprehensive (loss) income, tax	976	2,927	(15,367)	30,551
Total other comprehensive (loss) income	$ (2,496)	$ (7,485)	$ 39,301	$ (78,133)

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Comprehensive Income (Component of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	$ 2,770,552	$ 2,594,758	$ 2,710,003	$ 2,621,950
Net change	(5,859)	(7,850)	17,650	(40,614)
Balance, end of period	2,814,027	2,622,900	2,814,027	2,622,900
Total accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	(16,507)	(51,386)	(40,016)	(18,622)
Net change	(5,859)	(7,850)	17,650	(40,614)
Balance, end of period	(22,366)	(59,236)	(22,366)	(59,236)
Change in funded status of retirement obligations
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period			(9,485)	(6,690)
Net change	122	299	243	319
Balance, end of period	(9,242)	(6,371)	(9,242)	(6,371)
Accretion of loss on debt securities reclassified to held-to-maturity from available-for-sale
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period			(184)	(386)
Net change	30	56	61	112
Balance, end of period	(123)	(274)	(123)	(274)
Unrealized gains on debt securities available-for-sale and gains included in net income
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period			57,204	29,456
Net change			(22,327)	36,631
Balance, end of period	34,877	66,087	34,877	66,087
Other-than- temporary impairment accretion on debt securities
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period			(9,809)	(10,629)
Net change	193	277	372	457
Balance, end of period	(9,437)	(10,172)	(9,437)	(10,172)
Unrealized losses on derivatives
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period			(77,742)	(30,373)
Net change	(2,496)	(7,485)	39,301	(78,133)
Balance, end of period	$ (38,441)	$ (108,506)	$ (38,441)	$ (108,506)

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Comprehensive Income (Reclassification Adjustment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Gain on securities, net	$ 283	$ 55	$ 934	$ 257
Compensation and fringe benefits	61,385	55,791	123,812	116,183
Income before income tax expense	109,036	58,829	208,385	112,988
Income tax expense	(29,229)	(16,218)	(56,303)	(30,865)
Net income	79,807	42,611	152,082	82,123
Amount of loss reclassified from accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Income before income tax expense	10,638	6,391	20,427	8,780
Income tax expense	(2,852)	(1,762)	(5,527)	(2,398)
Net income	7,786	4,629	14,900	6,382
Reclassification adjustment for gains included in net income | Amount of loss reclassified from accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Gain on securities, net	0	0	(398)	0
Change in funded status of retirement obligations | Amount of loss reclassified from accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Amortization of net loss	170	299	338	599
Compensation and fringe benefits	170	299	338	599
Cash flow hedge | Amount of loss reclassified from accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Interest expense	$ 10,468	$ 6,092	$ 20,487	$ 8,181

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Stockholders’ Equity (Components of stockholders’ equity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	$ 2,770,552	$ 2,594,758	$ 2,710,003	$ 2,621,950
Net income	79,807	42,611	152,082	82,123
Other comprehensive income (loss), net of tax	(5,859)	(7,850)	17,650	(40,614)
Common stock issued to finance acquisition		20,881		20,881
Purchase of treasury stock	(4,343)	(2,429)	(11,958)	(3,361)
Treasury stock allocated to restricted stock plan	0	0	0	0
Compensation cost for stock options and restricted stock	3,707	3,954	7,167	7,850
Exercise of stock options	3,027		5,062
Restricted stock forfeitures	0		0	0
Cash dividend paid	(34,613)	(30,021)	(69,247)	(59,714)
ESOP shares allocated or committed to be released	1,749	996	3,268	2,276
Balance, end of period	2,814,027	2,622,900	2,814,027	2,622,900
Common stock
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	3,619	3,591	3,619	3,591
Common stock issued to finance acquisition		28		28
Balance, end of period	3,619	3,619	3,619	3,619
Additional paid-in capital
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	2,860,045	2,826,288	2,858,663	2,822,364
Common stock issued to finance acquisition		20,853		20,853
Treasury stock allocated to restricted stock plan	(335)	(36)	(3,149)	(736)
Compensation cost for stock options and restricted stock	3,707	3,954	7,167	7,850
Exercise of stock options	8		(133)
Restricted stock forfeitures	134		241	197
ESOP shares allocated or committed to be released	1,000	247	1,770	778
Balance, end of period	2,864,559	2,851,306	2,864,559	2,851,306
Retained earnings
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	1,376,774	1,247,028	1,339,003	1,245,793
Net income	79,807	42,611	152,082	82,123
Treasury stock allocated to restricted stock plan	49	(13)	185	(103)
Restricted stock forfeitures	12		6	(3)
Cash dividend paid	(34,613)	(30,021)	(69,247)	(59,714)
Balance, end of period	1,422,029	1,259,605	1,422,029	1,259,605
Treasury stock
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	(1,378,858)	(1,353,246)	(1,375,996)	(1,352,910)
Purchase of treasury stock	(4,343)	(2,429)	(11,958)	(3,361)
Treasury stock allocated to restricted stock plan	286	49	2,964	839
Exercise of stock options	3,019		5,195
Restricted stock forfeitures	(146)		(247)	(194)
Balance, end of period	(1,380,042)	(1,355,626)	(1,380,042)	(1,355,626)
Unallocated common stock held by ESOP
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	(74,521)	(77,517)	(75,270)	(78,266)
ESOP shares allocated or committed to be released	749	749	1,498	1,498
Balance, end of period	(73,772)	(76,768)	(73,772)	(76,768)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period	(16,507)	(51,386)	(40,016)	(18,622)
Other comprehensive income (loss), net of tax	(5,859)	(7,850)	17,650	(40,614)
Balance, end of period	$ (22,366)	$ (59,236)	$ (22,366)	$ (59,236)

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Stockholders’ Equity (Additional Information) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Equity [Abstract]
Purchase of treasury stock (shares)	299,838	298,977	964,114	383,366
Treasury stock allocated to restricted stock plan (shares)	22,823	4,000	239,166	68,923
Restricted stock forfeitures (shares)	12,000	0.12	20,567	15,973
Cash dividend paid (usd per share)	$ 0.14		$ 0.28	$ 0.24

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Fair Value Measurements (Carrying Value of Our Assets Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets:
Equity securities	$ 9,698	$ 36,000
Debt securities available-for-sale, at estimated fair value	2,544,415	2,758,437
Government-sponsored enterprises
Assets:
Debt securities available-for-sale, at estimated fair value	4,064	4,482
Federal Home Loan Mortgage Corporation
Assets:
Debt securities available-for-sale, at estimated fair value	1,189,868	1,317,052
Federal National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	1,188,302	1,205,426
Government National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	162,181	231,477
Fair Value, Measurements, Recurring
Assets:
Equity securities	9,698	36,000
Debt securities available-for-sale, at estimated fair value	2,544,415	2,758,437
Liabilities:
Derivative financial instruments	6,332	492
Fair Value, Measurements, Recurring | Interest rate swaps
Assets:
Interest rate swaps	19,181	34,577
Liabilities:
Derivative financial instruments	6,186	275
Fair Value, Measurements, Recurring | Other contracts
Liabilities:
Derivative financial instruments	146	217
Fair Value, Measurements, Recurring | Government-sponsored enterprises
Assets:
Debt securities available-for-sale, at estimated fair value	4,064	4,482
Fair Value, Measurements, Recurring | Federal Home Loan Mortgage Corporation
Assets:
Debt securities available-for-sale, at estimated fair value	1,189,868	1,317,052
Fair Value, Measurements, Recurring | Federal National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	1,188,302	1,205,426
Fair Value, Measurements, Recurring | Government National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	162,181	231,477
Level 1 | Fair Value, Measurements, Recurring
Assets:
Equity securities	9,698	36,000
Debt securities available-for-sale, at estimated fair value	0	0
Liabilities:
Derivative financial instruments	0	0
Level 1 | Fair Value, Measurements, Recurring | Interest rate swaps
Assets:
Interest rate swaps	0	0
Liabilities:
Derivative financial instruments	0	0
Level 1 | Fair Value, Measurements, Recurring | Other contracts
Liabilities:
Derivative financial instruments	0	0
Level 1 | Fair Value, Measurements, Recurring | Government-sponsored enterprises
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 1 | Fair Value, Measurements, Recurring | Federal Home Loan Mortgage Corporation
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 1 | Fair Value, Measurements, Recurring | Federal National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 1 | Fair Value, Measurements, Recurring | Government National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 2 | Fair Value, Measurements, Recurring
Assets:
Equity securities	0	0
Debt securities available-for-sale, at estimated fair value	2,544,415	2,758,437
Liabilities:
Derivative financial instruments	6,332	492
Level 2 | Fair Value, Measurements, Recurring | Interest rate swaps
Assets:
Interest rate swaps	19,181	34,577
Liabilities:
Derivative financial instruments	6,186	275
Level 2 | Fair Value, Measurements, Recurring | Other contracts
Liabilities:
Derivative financial instruments	146	217
Level 2 | Fair Value, Measurements, Recurring | Government-sponsored enterprises
Assets:
Debt securities available-for-sale, at estimated fair value	4,064	4,482
Level 2 | Fair Value, Measurements, Recurring | Federal Home Loan Mortgage Corporation
Assets:
Debt securities available-for-sale, at estimated fair value	1,189,868	1,317,052
Level 2 | Fair Value, Measurements, Recurring | Federal National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	1,188,302	1,205,426
Level 2 | Fair Value, Measurements, Recurring | Government National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	162,181	231,477
Level 3 | Fair Value, Measurements, Recurring
Assets:
Equity securities	0	0
Debt securities available-for-sale, at estimated fair value	0	0
Liabilities:
Derivative financial instruments	0	0
Level 3 | Fair Value, Measurements, Recurring | Interest rate swaps
Assets:
Interest rate swaps	0	0
Liabilities:
Derivative financial instruments	0	0
Level 3 | Fair Value, Measurements, Recurring | Other contracts
Liabilities:
Derivative financial instruments	0	0
Level 3 | Fair Value, Measurements, Recurring | Government-sponsored enterprises
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 3 | Fair Value, Measurements, Recurring | Federal Home Loan Mortgage Corporation
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 3 | Fair Value, Measurements, Recurring | Federal National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	0	0
Level 3 | Fair Value, Measurements, Recurring | Government National Mortgage Association
Assets:
Debt securities available-for-sale, at estimated fair value	$ 0	$ 0

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Fair Value Measurements (Narrative) (Details)	Jun. 30, 2021 USD ($)	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Outstanding minimum balance of loans to be evaluated for impairment individually	$ 1,000,000.0
Outstanding minimum balance of loans that are evaluated for impairment individually	$ 1,000,000.0
Prepayment speeds | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.0317	0.1446
Prepayment speeds | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.3120	0.2358
Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.1132	0.1203
Discount Rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans, measurement input (percentage)	0.00%
Other real estate owned, measurement input (percentage)	0
Discount Rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans, measurement input (percentage)	25.00%
Other real estate owned, measurement input (percentage)	0.25

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Fair Value Measurements (Carrying Value of Our Assets Measured at Fair Value on a Non-Recurring Basis) (Details) $ in Thousands	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net	$ 11,900	$ 11,200
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Asset, fair value	9,047	25,670
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Asset, fair value	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Asset, fair value	0	0
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Asset, fair value	9,047	25,670
Estimated cash flow | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net	9,047	10,663
Estimated cash flow | Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net	0	0
Estimated cash flow | Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net	0	0
Estimated cash flow | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net	$ 9,047	10,663
Market comparable | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment		15,007
Market comparable | Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment		0
Market comparable | Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment		0
Market comparable | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment		$ 15,007
Prepayment speeds | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.0317	0.1446
Prepayment speeds | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.3120	0.2358
Prepayment speeds | Estimated cash flow | Minimum | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.032	0.145
Prepayment speeds | Estimated cash flow | Maximum | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.312	0.236
Prepayment speeds | Estimated cash flow | Weighted Average Input | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
MSR, net input (percentage)	0.1476	0.1776
Lack of marketability | Market comparable | Minimum | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment measurement input (percentage)		0.000
Lack of marketability | Market comparable | Maximum | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment measurement input (percentage)		0.104
Lack of marketability | Market comparable | Weighted Average Input | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Operating lease equipment measurement input (percentage)		0.1041

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Fair Value Measurements (Carrying Amounts and Estimated Fair Values) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financial assets:
Equities	$ 9,698	$ 36,000
Debt securities available-for-sale	2,544,415	2,758,437
Debt securities held-to-maturity, net	1,253,521	1,320,872
Carrying value
Financial assets:
Cash and cash equivalents	770,396	170,432
Equities	9,698	36,000
Debt securities available-for-sale	2,544,415	2,758,437
Debt securities held-to-maturity, net	1,178,812	1,247,853
FHLB stock	199,826	159,829
Loans held for sale	0	30,357
Net loans	21,082,521	20,580,451
Derivative financial instruments	19,181	34,577
Financial liabilities:
Deposits, other than time deposits	17,152,701	16,807,240
Time deposits	2,286,265	2,718,179
Borrowed funds	4,033,864	3,295,790
Derivative financial instruments	6,332	492
Estimated fair value
Financial assets:
Cash and cash equivalents	770,396	170,432
Equities	9,698	36,000
Debt securities available-for-sale	2,544,415	2,758,437
Debt securities held-to-maturity, net	1,253,521	1,320,872
FHLB stock	199,826	159,829
Loans held for sale	0	30,357
Net loans	21,108,980	20,787,917
Derivative financial instruments	19,181	34,577
Financial liabilities:
Deposits, other than time deposits	17,152,701	16,807,240
Time deposits	2,287,966	2,726,230
Borrowed funds	4,084,597	3,367,491
Derivative financial instruments	6,332	492
Level 1 | Estimated fair value
Financial assets:
Cash and cash equivalents	770,396	170,432
Equities	9,698	36,000
Debt securities available-for-sale	0	0
Debt securities held-to-maturity, net	0	0
FHLB stock	199,826	159,829
Loans held for sale	0	0
Net loans	0	0
Derivative financial instruments	0	0
Financial liabilities:
Deposits, other than time deposits	17,152,701	16,807,240
Time deposits	0	0
Borrowed funds	0	0
Derivative financial instruments	0	0
Level 2 | Estimated fair value
Financial assets:
Cash and cash equivalents	0	0
Equities	0	0
Debt securities available-for-sale	2,544,415	2,758,437
Debt securities held-to-maturity, net	1,169,778	1,253,566
FHLB stock	0	0
Loans held for sale	0	30,357
Net loans	0	0
Derivative financial instruments	19,181	34,577
Financial liabilities:
Deposits, other than time deposits	0	0
Time deposits	2,287,966	2,726,230
Borrowed funds	4,084,597	3,367,491
Derivative financial instruments	6,332	492
Level 3 | Estimated fair value
Financial assets:
Cash and cash equivalents	0	0
Equities	0	0
Debt securities available-for-sale	0	0
Debt securities held-to-maturity, net	83,743	67,306
FHLB stock	0	0
Loans held for sale	0	0
Net loans	21,108,980	20,787,917
Derivative financial instruments	0	0
Financial liabilities:
Deposits, other than time deposits	0	0
Time deposits	0	0
Borrowed funds	0	0
Derivative financial instruments	$ 0	$ 0

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Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue
Revenue	$ 8,363	$ 4,873	$ 16,534	$ 11,842
Fees and service charges
Disaggregation of Revenue
Revenue	3,733	2,908	7,331	6,858
Other income
Disaggregation of Revenue
Revenue	$ 4,630	$ 1,965	$ 9,203	$ 4,984

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Subsequent Event (Details) $ / shares in Units, $ in Millions	Jul. 28, 2021 $ / shares	Jul. 27, 2021 USD ($)	Jun. 30, 2021 $ / shares	Dec. 31, 2020 $ / shares
Subsequent Event
Common stock, par value (usd per share)			$ 0.01	$ 0.01
Subsequent Event
Subsequent Event
Dividends declared (usd per share)	$ 0.14
Subsequent Event | Bankwell Financial Group | Citizens | Scenario, Plan
Subsequent Event
Shares received in merger (shares)	0.297
Cash conversion ratio (usd per share)	$ 1.46
Transaction value | $		$ 3,500
Ownership interest (percent)	14.00%

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Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]