10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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, 2015

Commission file number 0-23695

Brookline Bancorp, Inc.

(Exact name of registrant as specified in its charter)

Delaware	04-3402944
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
131 Clarendon Street, Boston, MA	02116
(Address of principal executive offices)	(Zip Code)

(617) 425-4600

(Registrant’s telephone number, including area code)

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 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.  YES  x  NO  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  YES  x  NO  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.

Large accelerated filer xAccelerated filer oNon-accelerated filer o Smaller Reporting Company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  YES  o  NO  x

At August 7, 2015, the number of shares of common stock, par value $0.01 per share, outstanding was 70,121,016.

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

FORM 10-Q

Index

		Page
Part I	Financial Information
Item 1.	Unaudited Consolidated Financial Statements
	Unaudited Consolidated Balance Sheets at June 30, 2015 and December 31, 2014	1
	Unaudited Consolidated Statements of Income for the Three Months and Six Months Ended June 30, 2015 and 2014	2
	Unaudited Consolidated Statements of Comprehensive Income for the Three Months and Six Months Ended June 30, 2015 and 2014	3
	Unaudited Consolidated Statements of Changes in Equity for the Six Months Ended June 30, 2015 and 2014	4
	Unaudited Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2015 and 2014	6
	Notes to Unaudited Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	53
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	88
Item 4.	Controls and Procedures	90
Part II	Other Information
Item 1.	Legal Proceedings	91
Item 1A.	Risk Factors	91
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	91
Item 3.	Defaults Upon Senior Securities	91
Item 4.	Mine Safety Disclosures	91
Item 5.	Other Information	91
Item 6.	Exhibits	92
	Signatures	93

PART I — FINANCIAL INFORMATION

Item 1. Unaudited Consolidated Financial Statements

BROOKLINE BANCORP, INC. AND SUBSIDIARIES Unaudited Consolidated Balance Sheets
	At June 30, 2015			At December 31, 2014
ASSETS	(In Thousands Except Share Data)
Cash and due from banks	$	43,363		$	36,893
Short-term investments	48,513			25,830
Total cash and cash equivalents	91,876			62,723
Investment securities available-for-sale	530,476			550,761
Investment securities held-to-maturity (fair value of $59,993 and $500)	60,511			500
Total investment securities	590,987			551,261
Loans and leases held-for-sale	12,482			1,537
Loans and leases:
Commercial real estate loans	2,513,358			2,467,801
Commercial loans and leases	1,282,180			1,167,094
Indirect automobile loans	19,377			316,987
Consumer loans	914,666			870,725
Total loans and leases	4,729,581			4,822,607
Allowance for loan and lease losses	(56,398		)	(53,659		)
Net loans and leases	4,673,183			4,768,948
Restricted equity securities	75,553			74,804
Premises and equipment, net of accumulated depreciation of $48,216 and $44,668, respectively	77,892			80,619
Deferred tax asset	28,466			27,687
Goodwill	137,890			137,890
Identified intangible assets, net of accumulated amortization of $27,700 and $26,238, respectively	12,082			13,544
Other real estate owned ("OREO") and repossessed assets, net	2,412			1,456
Other assets*	80,111			80,479
Total assets*	$	5,782,934		$	5,800,948
LIABILITIES AND EQUITY
Deposits:
Non-interest-bearing deposits:
Demand checking accounts	$	783,331		$	726,118
Interest-bearing deposits:
NOW accounts	247,172			235,063
Savings accounts	532,184			531,727
Money market accounts	1,523,798			1,518,490
Certificate of deposit accounts	1,042,923			946,708
Total interest-bearing deposits	3,346,077			3,231,988
Total deposits	4,129,408			3,958,106
Borrowed funds:
Advances from the Federal Home Loan Bank of Boston ("FHLBB")	823,452			1,004,026
Subordinated debentures and notes	82,850			82,763
Other borrowed funds	31,346			39,615
Total borrowed funds	937,648			1,126,404
Mortgagors’ escrow accounts	7,494			8,501
Accrued expenses and other liabilities	49,792			61,332
Total liabilities	5,124,342			5,154,343
Commitments and contingencies (Note 14)
Stockholders' Equity:
Brookline Bancorp, Inc. stockholders’ equity:
Common stock, $0.01 par value; 200,000,000 shares authorized; 75,744,445 shares issued	757			757
Additional paid-in capital	618,044			617,475
Retained earnings, partially restricted*	96,128			84,860
Accumulated other comprehensive loss	(1,775		)	(1,622		)
Treasury stock, at cost; 5,048,525 shares and 5,040,571 shares, respectively	(58,372		)	(58,282		)
Unallocated common stock held by the Employee Stock Ownership Plan ("ESOP"); 232,224 shares and 251,382 shares, respectively	(1,266		)	(1,370		)
Total Brookline Bancorp, Inc. stockholders’ equity*	653,516			641,818
Noncontrolling interest in subsidiary	5,076			4,787
Total stockholders' equity*	658,592			646,605
Total liabilities and stockholders' equity*	$	5,782,934		$	5,800,948
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

See accompanying notes to the unaudited consolidated financial statements.

1

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Unaudited Consolidated Statements of Income

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015		2014
	(In Thousands Except Share Data)
Interest and dividend income:
Loans and leases	$	51,684	$	50,433		$	105,065	$	102,375
Debt securities	2,931		2,360			5,614		4,619
Marketable and restricted equity securities	491		539			1,015		988
Short-term investments	60		14			81		58
Total interest and dividend income	55,166		53,346			111,775		108,040
Interest expense:
Deposits	4,296		4,201			8,600		8,492
Borrowed funds	3,698		2,711			7,475		5,380
Total interest expense	7,994		6,912			16,075		13,872
Net interest income	47,172		46,434			95,700		94,168
Provision for credit losses	1,913		2,276			4,176		4,719
Net interest income after provision for credit losses	45,259		44,158			91,524		89,449
Non-interest income:
Deposit fees	2,195		2,204			4,261		4,163
Loan fees	271		126			613		560
Loan level derivative income	941		62			941		62
Loss on sales of securities, net	—		(13		)	—		(13		)
Gain on sales of loans and leases held-for-sale	279		54			1,148		656
(Loss)/gain on sale/disposals of premises and equipment, net	—		(6		)	—		1,504
Other	1,181		1,395			2,374		2,518
Total non-interest income*	4,867		3,822			9,337		9,450
Non-interest expense:
Compensation and employee benefits	17,085		17,295			34,609		35,327
Occupancy	3,437		3,154			6,909		7,559
Equipment and data processing	3,680		4,348			7,700		8,725
Professional services	1,163		1,480			2,257		3,207
FDIC insurance	831		847			1,698		1,707
Advertising and marketing	823		776			1,571		1,441
Amortization of identified intangible assets	724		827			1,462		1,688
Other	2,709		2,488			5,572		5,137
Total non-interest expense	30,452		31,215			61,778		64,791
Income before provision for income taxes*	19,674		16,765			39,083		34,108
Provision for income taxes*	7,115		6,158			14,219		12,537
Net income before noncontrolling interest in subsidiary*	12,559		10,607			24,864		21,571
Less net income attributable to noncontrolling interest in subsidiary	694		476			1,296		898
Net income attributable to Brookline Bancorp, Inc.*	$	11,865	$	10,131		$	23,568	$	20,673
Earnings per common share:
Basic*	$	0.17	$	0.15		$	0.34	$	0.30
Diluted*	0.17		0.14			0.34		0.29
Weighted average common shares outstanding during the period:
Basic	70,049,829		69,886,576			70,042,997		69,881,055
Diluted	70,215,850		70,012,377			70,190,015		69,998,219
Dividends declared per common share	$	0.090	$	0.085		$	0.175	$	0.170
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

See accompanying notes to the unaudited consolidated financial statements.

2

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Unaudited Consolidated Statements of Comprehensive Income

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Net income before noncontrolling interest in subsidiary*	$	12,559		$	10,607		$	24,864		$	21,571
Other comprehensive income, net of taxes:
Investment securities available-for-sale:
Unrealized securities holding (losses) gains	(5,484		)	4,350			(113		)	7,643
Income tax benefit (expense)	1,962			(1,631		)	(40		)	(2,893		)
Net unrealized securities holding (losses) gains	(3,522		)	2,719			(153		)	4,750
Less reclassification adjustments for securities losses included in net income:
Loss on sales of securities, net	—			(13		)	—			(13		)
Income tax benefit	—			5			—			5
Net reclassification adjustments for securities losses included in net income	—			(8		)	—			(8		)
Net securities holding (losses) gains	(3,522		)	2,727			(153		)	4,758
Postretirement benefits:
Adjustment of accumulated obligation for postretirement benefits	—			—			—			(85		)
Income tax benefit	—			—			—			33
Net adjustment of accumulated obligation for postretirement benefits	—			—			—			(52		)
Other comprehensive (loss) income, net of taxes	(3,522		)	2,727			(153		)	4,706
Comprehensive income*	9,037			13,334			24,711			26,277
Net income attributable to noncontrolling interest in subsidiary	694			476			1,296			898
Comprehensive income attributable to Brookline Bancorp, Inc.*	$	8,343		$	12,858		$	23,415		$	25,379
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

See accompanying notes to the unaudited consolidated financial statements.

3

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Unaudited Consolidated Statements of Changes in Equity

Six Months Ended June 30, 2015 and 2014

	Common Stock		Additional Paid-in Capital		Retained Earnings*			Accumulated Other Comprehensive (Loss) Income			Treasury Stock			Unallocated Common Stock Held by ESOP			Total Brookline Bancorp, Inc. Stockholders’ Equity*			Noncontrolling Interest in Subsidiary			Total Equity*
	(In Thousands Except Share Data)
Balance at December 31, 2014	$	757	$	617,475	$	84,860		$	(1,622	)	$	(58,282	)	$	(1,370	)	$	641,818		$	4,787		$	646,605
Net income attributable to Brookline Bancorp, Inc.	—		—		23,568			—			—			—			23,568			—			23,568
Net income attributable to noncontrolling interest in subsidiary	—		—		—			—			—			—			—			1,296			1,296
Issuance of noncontrolling units	—		—		—			—			—			—			—			65			65
Other comprehensive income	—		—		—			(153		)	—			—			(153		)	—			(153		)
Common stock dividends of $0.175 per share	—		—		(12,300		)	—			—			—			(12,300		)	—			(12,300		)
Dividend to owners of noncontrolling interest in subsidiary	—		—		—			—			—			—			—			(1,072		)	(1,072		)
Compensation under recognition and retention plans	—		476		—			—			(90		)	—			386			—			386
Common stock held by ESOP committed to be released (19,158 shares)	—		93		—						—			104			197			—			197
Balance at June 30, 2015	$	757	$	618,044	$	96,128		$	(1,775	)	$	(58,372	)	$	(1,266	)	$	653,516		$	5,076		$	658,592
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

4

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Unaudited Consolidated Statements of Changes in Equity (Continued)

Six Months Ended June 30, 2015 and 2014

	Common Stock		Additional Paid-in Capital		Retained Earnings*			Accumulated Other Comprehensive (Loss) Income			Treasury Stock			Unallocated Common Stock Held by ESOP			Total Brookline Bancorp, Inc. Stockholders’ Equity*			Noncontrolling Interest in Subsidiary			Total Equity*
	(In Thousands Except Share Data)
Balance at December 31, 2013	$	757	$	617,538	$	65,448		$	(7,915	)	$	(59,826	)	$	(1,590	)	$	614,412		$	4,304		$	618,716
Net income attributable to Brookline Bancorp, Inc.	—		—		20,673			—			—			—			20,673			—			20,673
Net income attributable to noncontrolling interest in subsidiary	—		—		—			—			—			—			—			898			898
Issuance of noncontrolling units	—		—		—			—			—			—			—			60			60
Other comprehensive loss	—		—		—			4,706			—			—			4,706			—			4,706
Common stock dividends of $0.17 per share	—		—		(11,928		)	—			—			—			(11,928		)	—			(11,928		)
Dividend to owners of noncontrolling interest in subsidiary	—		—		—			—			—			—			—			(1,360		)	(1,360		)
Compensation under recognition and retention plans	—		96		—			—			339			—			435			—			435
Common stock held by ESOP committed to be released (20,142 shares)	—		75		—			—			—			110			185			—			185
Balance at June 30, 2014	$	757	$	617,709	$	74,193		$	(3,209	)	$	(59,487	)	$	(1,480	)	$	628,483		$	3,902		$	632,385
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

See accompanying notes to the unaudited consolidated financial statements.

5

BROOKLINE BANCORP, INC. AND SUBSIDIARIES Unaudited Consolidated Statements of Cash Flows
	Six Months Ended June 30,
	2015			2014
	(In Thousands)
Cash flows from operating activities:
Net income attributable to Brookline Bancorp, Inc. (1)	$	23,568		$	20,673
Adjustments to reconcile net income to net cash provided from operating activities:
Net income attributable to noncontrolling interest in subsidiary	1,296			898
Provision for credit losses	4,176			4,719
Origination of loans and leases held-for-sale	(25,697		)	(15,784		)
Proceeds from loans and leases held-for-sale, net (2)	15,379			15,922
Deferred income tax (benefit) expense	(819		)	1,046
Depreciation of premises and equipment	3,562			3,416
Amortization of investment securities premiums and discounts, net	822			1,448
Amortization of deferred loan and lease origination costs, net	2,824			4,991
Amortization of identified intangible assets	1,462			1,688
Amortization of debt issuance costs	50			—
Accretion of acquisition fair value adjustments, net	(3,333		)	(6,884		)
Gain on sale/disposals of premises and equipment, net	—			(1,504		)
Loss on sales of investment securities, net	—			13
Gain on sales of loans and leases held-for-sale	(1,148		)	(656		)
Gain on sales of OREO and repossessed assets, net	—			(27		)
Write-down of OREO and repossessed assets	132			189
Compensation under recognition and retention plans	434			435
ESOP shares committed to be released	197			185
Net change in:
Cash surrender value of bank-owned life insurance	(521		)	(519		)
Other assets (1)	889			620
Accrued expenses and other liabilities	(11,891		)	(6,279		)
Net cash provided from operating activities (1) (2)	11,382			24,590
Cash flows from investing activities:
Proceeds from sales of investment securities available-for-sale	—			5,083
Proceeds from maturities, calls and principal repayments of investment securities available-for-sale	50,859			34,062
Purchases of investment securities available-for-sale	(31,466		)	(69,108		)
Proceeds from maturities, calls, and principal repayments of investment securities held-to-maturity	241			500
Purchases of investment securities held-to-maturity	(60,295		)	(500		)
Purchases of restricted equity securities	(749		)	(4,887		)
Proceeds from sales of loans and leases held-for-investment, net (2)	267,164			—
Net increase in loans and leases (2)	(180,822		)	(248,738		)
Proceeds from sales of OREO and repossessed assets (2)	4,140			6,795
Proceeds from sales of premises and equipment	—			1,972
Purchase of premises and equipment, net	(917		)	(5,635		)
Net cash provided from/(used for) investing activities (2)	48,155			(280,456		)
				(Continued)

6

BROOKLINE BANCORP, INC. AND SUBSIDIARIES Unaudited Consolidated Statements of Cash Flows (Continued)
	Six Months Ended June 30,
	2015			2014
	(In Thousands)
Cash flows from financing activities:
Increase in demand checking, NOW, savings and money market accounts	75,087			60,593
Increase/(decrease) in certificates of deposit	96,302			(34,584		)
Proceeds from FHLBB advances	1,795,000			1,606,764
Repayment of FHLBB advances	(1,974,190		)	(1,368,461		)
Decrease in other borrowed funds, net	(8,269		)	(8,460		)
(Decrease)/increase in mortgagors’ escrow accounts, net	(1,007		)	470
Payment of dividends on common stock	(12,300		)	(11,928		)
Proceeds from issuance of noncontrolling units	65			60
Payment of dividends to owners of noncontrolling interest in subsidiary	(1,072		)	(1,360		)
Net cash (used for)/provided from financing activities	(30,384		)	243,094
Net increase/(decrease) in cash and cash equivalents	29,153			(12,772		)
Cash and cash equivalents at beginning of period	62,723			92,505
Cash and cash equivalents at end of period	$	91,876		$	79,733
Supplemental disclosures of cash flows information:
Cash paid during the period for:
Interest on deposits, borrowed funds and subordinated debt	$	17,634		$	15,438
Income taxes	17,013			8,490
Non-cash investing activities:
Transfer from loans to other real estate owned	$	5,228		$	6,625
(1) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".
(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

See accompanying notes to the unaudited consolidated financial statements.

7

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

(1)     Basis of Presentation

Overview

Brookline Bancorp, Inc. (the “Company”) is a bank holding company (within the meaning of the Bank Holding Company Act of 1956, as amended) and the parent of Brookline Bank, a Massachusetts-chartered savings bank; Bank Rhode Island (“BankRI”), a Rhode Island-chartered financial institution; and First Ipswich Bank (“First Ipswich”), a Massachusetts-chartered savings bank (collectively referred to as the “Banks”). The Banks are all members of the Federal Reserve System. The Company is also the parent of Brookline Securities Corp. (“BSC”). The Company’s primary business is to provide commercial, business and retail banking services to its corporate, municipal and individual customers through its banks and non-bank subsidiaries.

Brookline Bank, which includes its wholly-owned subsidiaries BBS Investment Corp., Longwood Securities Corp. and its 84.5%-owned subsidiary, Eastern Funding LLC (“Eastern Funding”), operates 24 full-service banking offices in the greater Boston metropolitan area. BankRI, which includes its wholly-owned subsidiaries BRI Investment Corp., Macrolease Corporation (“Macrolease”), Acorn Insurance Agency, BRI Realty Corp. and BRI MSC Corp., operates 19 full-service banking offices in the greater Providence area. First Ipswich, which includes its wholly-owned subsidiaries First Ipswich Securities II Corp. and First Ipswich Insurance Agency, operates 5 full-service banking offices on the north shore of eastern Massachusetts.

The Company’s activities include acceptance of commercial, municipal and retail deposits, origination of mortgage loans on commercial and residential real estate located principally in Massachusetts and Rhode Island, origination of commercial loans and leases to small- and mid-sized businesses, investment in debt and equity securities, and the offering of cash management and investment advisory services. The Company also provides specialty equipment financing through its subsidiaries Eastern Funding, which is based in New York City, New York, and Macrolease, which is based in Plainview, New York. The Company ceased the origination of indirect automobile loans in December 2014.

The Company and the Banks are supervised, examined and regulated by the Board of Governors of the Federal Reserve System ("FRB"). As Massachusetts-chartered banks, Brookline Bank and First Ipswich are also subject to regulation under the laws of the Commonwealth of Massachusetts and the jurisdiction of the Massachusetts Division of Banks. As a Rhode Island-chartered bank, BankRI is also subject to regulation under the laws of the State of Rhode Island and the jurisdiction of the Banking Division of the Rhode Island Department of Business Regulation.

The Federal Deposit Insurance Corporation (“FDIC”) offers insurance coverage on all deposits up to $250,000 per depositor at each of the three Banks. As FDIC-insured depository institutions, all three Banks are also secondarily subject to supervision, examination and regulation by the FDIC. Additionally, as a Massachusetts-chartered savings bank, Brookline Bank is also insured by the Depositors Insurance Fund (“DIF”), a private industry-sponsored insurance company. The DIF insures savings bank deposits in excess of the FDIC insurance limits. As such, Brookline Bank offers 100% insurance on all deposits as a result of a combination of insurance from the FDIC and the DIF. Brookline Bank is required to file reports with the DIF.

Basis of Financial Statement Presentation

The unaudited consolidated financial statements of the Company presented herein have been prepared pursuant to the rules of the Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by U.S. generally accepted accounting principles (“GAAP”). In the opinion of management, all adjustments (consisting of normal recurring adjustments) and disclosures considered necessary for the fair presentation of the accompanying consolidated financial statements have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Annual Report on Form 10-K for the fiscal year ended December 31, 2014. 

The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances are eliminated in consolidation.

8

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

In preparing these consolidated financial statements, management is required to make significant estimates and assumptions that affect the reported amounts of assets, liabilities, income, expenses and disclosure of contingent assets and liabilities. Actual results could differ from those estimates based upon changing conditions, including economic conditions and future events. Material estimates that are particularly susceptible to significant change in the near-term include the determination of the allowance for loan and lease losses, the determination of fair market values of assets and liabilities, including acquired loans and leases, the review of goodwill and intangibles for impairment and the review of deferred tax assets for valuation allowances.

The judgments used by management in applying these critical accounting policies may be affected by a further and prolonged deterioration in the economic environment, which may result in changes to future financial results. For example, subsequent evaluations of the loan and lease portfolio, in light of the factors then prevailing, may result in significant changes in the allowance for loan and lease losses in future periods, and the inability to collect outstanding principal may result in increased loan and lease losses.

Reclassification

Certain previously reported amounts have been reclassified to conform to the current year’s presentation. Except for the adoption of ASU 2014-01, there were no changes to stockholders' equity and net income reported. Refer to Note 8, "Investments in Qualified Affordable Projects" for the impact the adoption had on the Company's financial statements.

(2)         Recent Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This ASU requires that all debt issuance costs be presented in the balance sheet as direct deductions from the carrying amount of the related debt liability. Amortization of the costs is reported as interest expense. This ASU is applied retrospectively for the first interim or annual period presented beginning after December 15, 2015; early adoption is permitted. As of June 30, 2015, the Company has accounted for its debt issuance cost as a reduction of the debt liability.

The Company adopted ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects, which required retrospective application. Refer to Note 8, "Investments in Qualified Affordable Projects" for the impact the adoption had on the Company's financial statements.

9

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

(3)         Investment Securities

The following tables set forth investment securities available-for-sale and held-to-maturity at the dates indicated:

	At June 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	18,519	$	125	$	94	$	18,550
GSE CMOs	218,039		110		3,752		214,397
GSE MBSs	254,410		1,816		1,424		254,802
SBA commercial loan asset-backed securities	180		—		1		179
Corporate debt obligations	39,852		405		3		40,254
Trust preferred securities	1,465		—		144		1,321
Total debt securities	532,465		2,456		5,418		529,503
Marketable equity securities	951		22		—		973
Total investment securities available-for-sale	$	533,416	$	2,478	$	5,418	$	530,476
Investment securities held-to-maturity:
GSEs	$	26,925	$	—	$	197	$	26,728
GSEs MBSs	20,993		—		218		20,775
Municipal obligations	12,093		5		108		11,990
Foreign government securities	500		—		—		500
Total investment securities held-to-maturity	$	60,511	$	5	$	523	$	59,993

	At December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	22,929	$	88	$	29	$	22,988
GSE CMOs	238,910		80		4,821		234,169
GSE MBSs	249,329		2,531		879		250,981
SBA commercial loan asset-backed securities	205		—		2		203
Corporate debt obligations	39,805		403		1		40,207
Trust preferred securities	1,463		—		223		1,240
Total debt securities	552,641		3,102		5,955		549,788
Marketable equity securities	947		26		—		973
Total investment securities available-for-sale	$	553,588	$	3,128	$	5,955	$	550,761
Investment securities held-to-maturity:
Foreign government securities	500		—		—		500
Total investment securities held-to-maturity	$	500	$	—	$	—	$	500

10

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

At June 30, 2015, the fair value of all investment securities available-for-sale was $530.5 million, with net unrealized losses of $2.9 million, compared to a fair value of $550.8 million and net unrealized losses of $2.8 million at December 31, 2014. At June 30, 2015, $340.1 million, or 64.1% of the portfolio, had gross unrealized losses of $5.4 million, compared to $335.7 million, or 60.9%, with gross unrealized losses of $6.0 million at December 31, 2014.

At June 30, 2015, the fair value of all investment securities held-to-maturity was $60.0 million, with net unrealized losses of $0.5 million, compared to a fair value of $0.5 million with no unrealized losses at December 31, 2014. At June 30, 2015, $57.6 million, or 96.0% of the portfolio, had gross unrealized losses of $0.5 million. There were no investment securities held-to-maturity with net unrealized losses at December 31, 2014.

Investment Securities as Collateral

At June 30, 2015 and December 31, 2014, respectively, $490.0 million and $473.1 million of investment securities available-for-sale were pledged as collateral for repurchase agreements; municipal deposits; treasury, tax and loan deposits; swap agreements; and FHLBB borrowings. No investment securities held-to-maturity were pledged as collateral at these dates.

Other-Than-Temporary Impairment (“OTTI”)

Investment securities available-for-sale at June 30, 2015 and December 31, 2014 that have been in a continuous unrealized loss position for less than twelve months or twelve months or longer are as follows:

	At June 30, 2015
	Less than Twelve Months				Twelve Months or Longer				Total
	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
	(In Thousands)
Investment securities available-for-sale:
GSEs	$	7,993	$	94	$	—	$	—	$	7,993	$	94
GSE CMOs	95,459		782		110,243		2,970		205,702		3,752
GSE MBSs	102,612		748		18,207		676		120,819		1,424
SBA commercial loan asset-backed securities	7		—		163		1		170		1
Corporate debt obligations	4,059		3		—		—		4,059		3
Trust preferred securities	—		—		1,321		144		1,321		144
Temporarily impaired debt securities available-for-sale	210,130		1,627		129,934		3,791		340,064		5,418
Investment securities held-to-maturity:
GSEs	26,728		197		—		—		26,728		197
GSEs MBSs	20,775		218		—		—		20,775		218
Municipal obligations	10,079		108		—		—		10,079		108
Temporarily impaired debt securities held-to-maturity	57,582		523		—		—		57,582		523
Total temporarily impaired investment securities	$	267,712	$	2,150	$	129,934	$	3,791	$	397,646	$	5,941

11

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At December 31, 2014
	Less than Twelve Months				Twelve Months or Longer				Total
	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
	(In Thousands)
Investment securities available-for-sale:
GSEs	$	11,086	$	29	$	—	$	—	$	11,086	$	29
GSE CMOs	39,095		179		190,345		4,642		229,440		4,821
GSE MBSs	50,099		84		39,555		795		89,654		879
SBA commercial loan asset-backed securities	8		—		186		2		194		2
Corporate debt obligations	4,069		1		—		—		4,069		1
Trust preferred securities	—		—		1,240		223		1,240		223
Total temporarily impaired investment securities available-for-sale	$	104,357	$	293	$	231,326	$	5,662	$	335,683	$	5,955

The Company performs regular analysis on the investment securities portfolio to determine whether a decline in fair value indicates that an investment security is OTTI. In making these OTTI determinations, management considers, among other factors, the length of time and extent to which the fair value has been less than amortized cost; projected future cash flows; credit subordination and the creditworthiness, capital adequacy and near-term prospects of the issuers.

Management also considers the Company’s capital adequacy, interest-rate risk, liquidity and business plans in assessing whether it is more likely than not that the Company will sell or be required to sell the investment securities before recovery. If the Company determines that a decline in fair value is OTTI and that it is more likely than not that the Company will not sell or be required to sell the investment security before recovery of its amortized cost, the credit portion of the impairment loss is recognized in the Company's unaudited consolidated statements of income and the noncredit portion is recognized in accumulated other comprehensive income. The credit portion of the OTTI impairment represents the difference between the amortized cost and the present value of the expected future cash flows of the investment security. If the Company determines that a decline in fair value is OTTI and it is more likely than not that it will sell or be required to sell the investment security before recovery of its amortized cost, the entire difference between the amortized cost and the fair value of the investment security will be recognized in the Company's unaudited consolidated statements of income.

Investment Securities Available-For-Sale Impairment Analysis

The following discussion summarizes, by investment security type, the basis for evaluating if the applicable investment securities within the Company’s available-for-sale portfolio were OTTI at June 30, 2015. Based on the analysis below, it is more likely than not that the Company will not sell or be required to sell the investment securities before recovery of its amortized cost. The Company's ability and intent to hold these investment securities until recovery is supported by the Company's strong capital and liquidity positions as well as its historically low portfolio turnover. As such, Management has determined that the investment securities are not OTTI at June 30, 2015. If market conditions for investment securities worsen or the creditworthiness of the underlying issuers deteriorates, it is possible that the Company may recognize additional OTTI in future periods.

U.S. Government-Sponsored Enterprises

The Company invests in securities issued by U.S. Government-sponsored enterprises (“GSEs”), including GSE debt securities, mortgage-backed securities (“MBSs”), and collateralized mortgage obligations (“CMOs”). GSE securities include obligations issued by the Federal National Mortgage Association (“FNMA”), the Federal Home Loan Mortgage Corporation (“FHLMC”), the Government National Mortgage Association (“GNMA”), the Federal Home Loan Banks ("FHLB") and the Federal Farm Credit Bank. At June 30, 2015, only GNMA MBSs and CMOs, and Small Business Administration (“SBA”) commercial loan asset-backed securities with an estimated fair value of $21.2 million were backed explicitly by the full faith and credit of the U.S. Government, compared to $26.2 million at December 31, 2014.

12

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

At June 30, 2015, the Company held GSE debentures with a total fair value of $18.6 million, which approximated amortized cost. At December 31, 2014, the Company held GSE debentures with a total fair value of $23.0 million, which also approximated amortized cost. At June 30, 2015, three of the seven securities in this portfolio were in unrealized loss positions. At December 31, 2014, four of the eight securities in this portfolio were in unrealized loss positions. All securities are performing and backed by the implicit (FHLB / FNMA / FHLMC) or explicit (GNMA / SBA) guarantee of the U.S. Government. During the six months endedJune 30, 2015, the Company purchased $2.0 million of GSE debentures. This compares to a total of $2.0 million purchased during the same period in 2014.

At June 30, 2015, the Company held GSE mortgage-related securities with a total fair value of $469.2 million and a net unrealized loss of $3.3 million. This compares to a total fair value of $485.2 million and a net unrealized loss of $3.1 million at December 31, 2014. At June 30, 2015, 90 of the 254 securities in this portfolio were in unrealized loss positions, compared to 79 of the 250 securities at December 31, 2014. All securities are performing and backed by the implicit (FHLB / FNMA / FHLMC) or explicit (GNMA) guarantee of the U.S. Government. During the six months endedJune 30, 2015, the Company purchased $29.5 million in GSE CMOs and GSE MBSs. This compares to a total of $55.1 million purchased during the same period in 2014.

SBA Commercial Loan Asset-Backed Securities

At June 30, 2015 and December 31, 2014, the Company held eight SBA securities with a total fair value of $0.2 million which approximated amortized cost. At June 30, 2015 and December 31, 2014, seven of the eight securities in this portfolio were in unrealized loss positions. All securities are performing and backed by the explicit (SBA) guarantee of the U.S. Government.

Corporate Obligations

From time to time, the Company will invest in high-quality corporate obligations to provide portfolio diversification and improve the overall yield on the portfolio. The Company owned thirteen corporate obligation securities with a total fair value of $40.3 million and a net unrealized gain of $0.4 million at June 30, 2015. This compares to thirteen corporate obligation securities with a total fair value of $40.2 million and a net unrealized gain of $0.4 million at December 31, 2014. At June 30, 2015 and December 31, 2014, one of the thirteen securities in this portfolio was in an unrealized loss position. Full collection of the obligations is expected because the financial condition of the issuer is sound and has not defaulted on scheduled payments, the obligations are rated investment grade and the Company has the ability and intent to hold the obligations for a period of time to recover the amortized cost. During the six months endedJune 30, 2015, the Company did not purchase any corporate obligations. This compares to a total of $12.0 million purchased during the same period in 2014.

Trust Preferred Securities

Trust preferred securities represent subordinated debt issued by financial institutions. At June 30, 2015, the Company owned two trust preferred securities with a total fair value of $1.3 million and total net unrealized loss of $0.1 million. This compares to two trust preferred securities with a total fair value of $1.2 million and a total net unrealized loss of $0.2 million at December 31, 2014. At June 30, 2015 and December 31, 2014, both of the securities in this portfolio were in unrealized loss positions. Full collection of the obligations is expected because the financial condition of the issuers is sound, none of the issuers has defaulted on scheduled payments, the obligations are rated investment grade and the Company has the ability and intent to hold the obligations for a period of time to recover the amortized cost.

Marketable Equity Securities

At June 30, 2015 and December 31, 2014, the Company owned marketable equity securities with a fair value of $1.0 million, which approximated amortized cost. At June 30, 2015 and December 31, 2014, none of the securities in this portfolio was in an unrealized loss position.

Investment Securities Held-to-Maturity Impairment Analysis

At June 30, 2015, the Company owned 43 held-to-maturity investment securities with a total fair value of $60.0 million and a net unrealized loss of $0.5 million. This compares to 0.5 million at December 31, 2014 which represented fair value. At

13

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

June 30, 2015, 38 of the securities were in an unrealized loss position compared to none at December 31, 2014. Management does not intend to sell these securities prior to maturity. As such, Management has determined that the investment securities are not OTTI at June 30, 2015. During the six months endedJune 30, 2015, the Company purchased $60.3 million of held-to-maturity investment securities. This compares to a total of $0.5 million purchased during the same period in 2014.

Portfolio Maturities

The final stated maturities of the debt securities are as follows at the dates indicated:

	At June 30, 2015						At December 31, 2014
	Amortized Cost		Estimated Fair Value		Weighted Average Rate		Amortized Cost		Estimated Fair Value		Weighted Average Rate
	(Dollars in Thousands)
Investment securities available-for-sale:
Within 1 year	$	6,151	$	6,174	2.35	%	$	3,057	$	3,081	3.00	%
After 1 year through 5 years	49,500		50,318		2.50	%	55,631		56,586		2.48	%
After 5 years through 10 years	90,390		90,955		1.98	%	103,268		104,208		2.00	%
Over 10 years	386,424		382,056		1.96	%	390,685		385,913		1.91	%
	$	532,465	$	529,503	2.02	%	$	552,641	$	549,788	1.99	%
Investment securities held-to-maturity:
Within 1 year	$	500	$	500	1.30	%	$	—	$	—	—	%
After 1 year through 5 years	11,336		11,312		1.58	%	500		500		1.30	%
After 5 years through 10 years	27,682		27,406		2.15	%	—		—		—	%
Over 10 years	20,993		20,775		1.65	%	—		—		—	%
	$	60,511	$	59,993	1.86	%	$	500	$	500	1.30	%

Actual maturities of debt securities may differ from those presented above since certain obligations amortize and provide the issuer the right to call or prepay the obligation prior to the scheduled final stated maturity without penalty. MBSs and CMOs are included above based on their final stated maturities; the actual maturities, however, are expected to occur earlier due to anticipated prepayments and stated amortization of cash flows.

At June 30, 2015, issuers of debt securities with an estimated fair value of $35.4 million had the right to call or prepay the obligations. Of the $35.4 million, $9.5 million matures in 1 - 5 years and $25.9 million matures in 6 - 10 years. At December 31, 2014, issuers of debt securities with an estimated fair value of $16.1 million had the right to call or prepay the obligations. Of the $16.1 million, approximately $5.0 million matures in 1 - 5 years, $9.9 million matures in 6 - 10 years and $1.2 million matures after ten years.

Security Sales

Security transactions are recorded on the trade date. When securities are sold, the adjusted cost of the specific security sold is used to compute the gain on loss on the sale. There were no security sales during the three-month and six-month periods ended June 30, 2015.

14

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	(In Thousands)
Sales of debt securities	$	5,083		$	5,083
Gross gains from sales	302			302
Gross losses from sales	315			315
Loss on sales of securities, net	$	(13	)	$	(13	)

(4)        Loans and Leases

The following tables present loan and lease balances and weighted average coupon rates for the originated and acquired loan and lease portfolios at the dates indicated:

	At June 30, 2015
	Originated				Acquired				Total
	Balance		Weighted Average Coupon		Balance		Weighted Average Coupon		Balance		Weighted Average Coupon
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,530,765	4.06	%	$	227,516	4.19	%	$	1,758,281	4.08	%
Multi-family mortgage	576,392		4.06	%	51,179		4.45	%	627,571		4.09	%
Construction	126,975		3.67	%	531		4.97	%	127,506		3.68	%
Total commercial real estate loans	2,234,132		4.04	%	279,226		4.24	%	2,513,358		4.06	%
Commercial loans and leases:
Commercial	548,727		3.80	%	29,821		4.97	%	578,548		3.86	%
Equipment financing	637,411		6.88	%	11,036		6.07	%	648,447		6.87	%
Condominium association	55,185		4.54	%	—		—	%	55,185		4.54	%
Total commercial loans and leases	1,241,323		5.41	%	40,857		5.27	%	1,282,180		5.41	%
Indirect automobile loans	19,377		5.61	%	—		—	%	19,377		5.61	%
Consumer loans:
Residential mortgage	506,828		3.62	%	96,245		3.87	%	603,073		3.66	%
Home equity	206,835		3.32	%	92,561		3.87	%	299,396		3.50	%
Other consumer	12,058		4.98	%	139		16.80	%	12,197		5.12	%
Total consumer loans	725,721		3.56	%	188,945		3.88	%	914,666		3.63	%
Total loans and leases	$	4,220,553	4.37	%	$	509,028	4.19	%	$	4,729,581	4.35	%

15

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At December 31, 2014
	Originated				Acquired				Total
	Balance		Weighted Average Coupon		Balance		Weighted Average Coupon		Balance		Weighted Average Coupon
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,425,621	4.18	%	$	254,461	4.29	%	$	1,680,082	4.20	%
Multi-family mortgage	576,214		4.11	%	63,492		4.50	%	639,706		4.15	%
Construction	146,074		3.79	%	1,939		5.50	%	148,013		3.81	%
Total commercial real estate loans	2,147,909		4.13	%	319,892		4.34	%	2,467,801		4.16	%
Commercial loans and leases:
Commercial	462,730		3.88	%	51,347		4.14	%	514,077		3.91	%
Equipment financing	587,496		6.92	%	13,928		6.22	%	601,424		6.90	%
Condominium association	51,593		4.60	%	—		—	%	51,593		4.60	%
Total commercial loans and leases	1,101,819		5.53	%	65,275		4.58	%	1,167,094		5.48	%
Indirect automobile loans	316,987		4.47	%	—		—	%	316,987		4.47	%
Consumer loans:
Residential mortgage	472,078		3.60	%	99,842		3.77	%	571,920		3.63	%
Home equity	181,580		3.35	%	105,478		3.85	%	287,058		3.53	%
Other consumer	11,580		5.13	%	167		16.35	%	11,747		5.29	%
Total consumer loans	665,238		3.56	%	205,487		3.82	%	870,725		3.62	%
Total loans and leases	$	4,231,953	4.43	%	$	590,654	4.19	%	$	4,822,607	4.40	%

The Company lends primarily in the eastern half of Massachusetts, southern New Hampshire and Rhode Island, with the exception of equipment financing, 34.5% of which is in the greater New York/New Jersey metropolitan area and 65.5% of which is in other areas in the United States of America at June 30, 2015, compared to 35.9% of which is in the greater New York/New Jersey metropolitan area and 64.1% of which is in other areas in the United States of America at December 31, 2014.

Competition for the indirect automobile loans increased significantly as credit unions and large national banks entered indirect automobile lending in a search for additional sources of income. That competition drove interest rates down and, in some cases, changed the manner in which interest rates are developed, from including a dealer-shared spread to imposing a dealer-based fee to originate the loan. Given this market condition, management ceased the Company's origination of indirect automobile loans in December 2014. For the quarter ended March 31, 2015, the Company sold over 90% of the portfolio for $255.2 million, which resulted in a loss of $11.8 thousand. Refer to Note 5, "Allowance for Loan and Lease Losses" for the impact of the sale on the Company's allowance for loan and lease losses.

16

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Accretable Yield for the Acquired Loan Portfolio

The following table summarizes activity in the accretable yield for the acquired loan portfolio for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Balance at beginning of period	$	30,660		$	42,501		$	32,044		$	45,789
Reclassification from nonaccretable difference for loans with improved cash flows	682			214			2,122			1,654
Accretion	(2,612		)	(4,537		)	(5,436		)	(9,265		)
Balance at end of period	$	28,730		$	38,178		$	28,730		$	38,178

On a quarterly basis, subsequent to acquisition, management reforecasts the expected cash flows for acquired ASC 310-30 loans, taking into account prepayment speeds, probability of default and loss given defaults. Management compares cash flow projections per the reforecast to the original cash flow projections and determines whether any reduction in cash flow expectations is due to credit deterioration, or if the change in cash flow is related to noncredit events. This cash flow analysis is used to evaluate the need for a loan loss provision and/or prospective yield adjustments. During the six months endedJune 30, 2015 and 2014, accretable yield adjustments totaling $2.1 million and $1.7 million, respectively, were made for certain loan pools. These prospective accretable yield adjustments, which are subject to continued re-assessment, will be recognized over the remaining lives of those pools.

The aggregate remaining nonaccretable difference (representing both principal and interest) applicable to acquired loans and leases totaled $1.5 million and $3.6 million at June 30, 2015 and December 31, 2014, respectively.

Loans and Leases Pledged as Collateral

At June 30, 2015 and December 31, 2014, there were $1.9 billion and $1.6 billion, respectively, of loans and leases pledged as collateral for repurchase agreements; municipal deposits; treasury, tax and loan deposits; swap agreements; and FHLBB borrowings. The Banks did not have any outstanding FRB borrowings at June 30, 2015 and December 31, 2014.

17

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

(5)    Allowance for Loan and Lease Losses

The following tables present the changes in the allowance for loan and lease losses and the recorded investment in loans and leases by portfolio segment for the periods indicated:

	Three Months Ended June 30, 2015
	Commercial Real Estate			Commercial			Indirect Automobile			Consumer			Unallocated		Total
	(In Thousands)
Balance at March 31, 2015	$	29,460		$	19,084		$	458		$	3,619		$	2,485	$	55,106
Charge-offs	(162		)	(245		)	(397		)	(225		)	—		(1,029		)
Recoveries	—			94			410			24			—		528
Credit (provision) for loan and lease losses	(82		)	1,296			(90		)	594			75		1,793
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398

	Three Months Ended June 30, 2014
	Commercial Real Estate		Commercial			Indirect Automobile			Consumer			Unallocated			Total
	(In Thousands)
Balance at March 31, 2014	$	24,858	$	15,544		$	3,664		$	3,110		$	3,048		$	50,224
Charge-offs	—		(796		)	(228		)	(172		)	—			(1,196		)
Recoveries	—		218			173			85			—			476
Provision (credit) for loan and lease losses	1,857		900			77			(6		)	(646		)	2,182
Balance at June 30, 2014	$	26,715	$	15,866		$	3,686		$	3,017		$	2,402		$	51,686

	Six Months Ended June 30, 2015
	Commercial Real Estate			Commercial			Indirect Automobile			Consumer			Unallocated		Total
	(In Thousands)
Balance at December 31, 2014	$	29,594		$	15,957		$	2,331		$	3,359		$	2,418	$	53,659
Charge-offs	(550		)	(695		)	(1,217		)	(232		)	—		(2,694		)
Recoveries	—			306			991			42			—		1,339
Provision (credit) for loan and lease losses	172			4,661			(1,724		)	843			142		4,094
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398

	Six Months Ended June 30, 2014
	Commercial Real Estate		Commercial			Indirect Automobile			Consumer			Unallocated			Total
	(In Thousands)
Balance at December 31, 2013	$	23,022	$	15,220		$	3,924		$	3,375		$	2,932		$	48,473
Charge-offs	—		(1,347		)	(517		)	(382		)	—			(2,246		)
Recoveries	—		469			277			114			—			860
Provision (credit) for loan and lease losses	3,693		1,524			2			(90		)	(530		)	4,599
Balance at June 30, 2014	$	26,715	$	15,866		$	3,686		$	3,017		$	2,402		$	51,686

The liability for unfunded credit commitments, which is included in other liabilities, was $1.4 million, $1.3 million and $1.2 million at June 30, 2015, December 31, 2014 and June 30, 2014, respectively. The liability for unfunded credit commitments reflects changes in the estimate of loss exposure associated with certain unfunded credit commitments. No credit commitments were charged off against the liability account in the six-month periods ended June 30, 2015 and 2014.

18

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Provision for Credit Losses

The provision for credit losses are set forth below for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Provision (credit) for loan and lease losses:
Commercial real estate	$	(82	)	$	1,857		$	172		$	3,693
Commercial	1,296			900			4,661			1,524
Indirect automobile	(90		)	77			(1,724		)	2
Consumer	594			(6		)	843			(90		)
Unallocated	75			(646		)	142			(530		)
Total provision for loan and lease losses	1,793			2,182			4,094			4,599
Unfunded credit commitments	120			94			82			120
Total provision for credit losses	$	1,913		$	2,276		$	4,176		$	4,719

Procedure for Placing Loans and Leases on Nonaccrual

Accrual of interest on loans generally is discontinued when contractual payment of principal or interest becomes past due 90 days or, if in management’s judgment, reasonable doubt exists as to the full timely collection of interest. Exceptions may be made if the loan has matured and is in the process of renewal or is well-secured and in the process of collection. When a loan is placed on nonaccrual status, interest accruals cease and uncollected accrued interest is reversed and charged against current interest income. Interest payments on nonaccrual loans are generally applied to principal. If collection of the principal is reasonably assured, interest payments are recognized as income on the cash basis. Loans are generally returned to accrual status when principal and interest payments are current, full collectability of principal and interest is reasonably assured and a consistent record of at least six consecutive months of performance has been achieved.

Allowance for Loan and Lease Losses Methodology

Management has established a methodology to determine the adequacy of the allowance for loan and lease losses that assesses the risks and losses inherent in the loan and lease portfolio. Additions to the allowance for loan and lease losses are made by charges to the provision for credit losses. Losses on loans and leases are charged off against the allowance when all or a portion of a loan or lease is considered uncollectible. Subsequent recoveries on loans previously charged off, if any, are credited to the allowance when realized.

The allowance for loan and lease losses consists of general, specific and unallocated reserves and reflects management's estimate of probable loan and lease losses inherent in the loan portfolio at the balance sheet date. Management uses a consistent and systematic process and methodology to evaluate the adequacy of the allowance for loan and lease losses on a quarterly basis. For purposes of determining the allowance for loan and lease losses, the Company has segmented certain loans and leases in the portfolio by product type into the following pools: (1) commercial real estate loans, (2) commercial loans and leases, (3) indirect automobile loans and (4) consumer loans. Portfolio segments are further disaggregated into classes based on the associated risks within the segments. Commercial real estate loans are divided into three classes: commercial real estate mortgage loans, multi-family mortgage loans and construction loans. Commercial loans and leases are divided into three classes: commercial loans, equipment financing, and loans to condominium associations. The indirect automobile loan segment is not divided into classes. Consumer loans are divided into three classes: residential mortgage loans, home equity loans and other consumer loans. A formula-based credit evaluation approach is applied to each group, coupled with an analysis of certain loans for impairment.

19

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

General Allowance

The general allowance related to loans collectively evaluated for impairment is determined using a formula-based approach utilizing the risk ratings of individual credits and loss factors derived from historic portfolio loss rates, which includes estimates of incurred losses over an estimated loss emergence period (“LEP”). The LEP was generated utilizing a charge-off look-back analysis which studied the time from the first indication of elevated risk of repayment (or other early event indicating a problem) to eventual charge-off to support the LEP considered in the allowance calculation. This reserving methodology established the approximate number of months of a LEP that incurred losses should be carried for each portfolio. Other relevant qualitative factors include, but are not limited to, historic levels and trends in loan charge-offs and recoveries; past-due loans; risk-rated loans; classified loans and impaired loans; the pace of loan growth; underwriting policies and adherence to such policies; changes in credit concentration; the experience of lending personnel and management; trends in the economy and employment; business conditions; industry conditions; and political, legislative and regulatory changes. The general allowance related to the acquired loans collectively evaluated for impairment is determined based upon the degree, if any, of deterioration in the pooled loans subsequent to acquisition. The qualitative factors used in the determination are the same as those used for originated loans.

The general allowance for loan and lease losses was $51.0 million at June 30, 2015, compared to $50.1 million at December 31, 2014. The general portion of the allowance for loan and lease losses increased by $0.9 million during the six months endedJune 30, 2015, largely due to the growth in commercial real estate and commercial loan and lease portfolios, offset by the sale of the indirect automobile portfolio, which resulted in a release of $1.9 million in the general allowance for loan and lease losses in the first quarter of 2015.

Specific Allowance

Specific valuation allowances are established for impaired originated loans with book values greater than the discounted present value of expected future cash flows or, in the case of collateral-dependent impaired loans, for any excess of a loan's book balance and the fair value of its underlying collateral. Specific valuation allowances are established for acquired loans with deterioration in the discounted present value of expected future cash flows since acquisitions or, in the case of collateral dependent impaired loans, for any increase in the excess of a loan's book balance greater than the fair value of its underlying collateral. A specific valuation allowance for losses on troubled debt restructured loans is determined by comparing the net carrying amount of the troubled debt restructured loan with the restructured loan's cash flows discounted at the original

effective rate. Impaired loans are reviewed quarterly with adjustments made to the calculated reserve as deemed necessary.

The specific allowance for loan and lease losses was $2.8 million at June 30, 2015, compared to $1.2 million at December 31, 2014. The specific allowance increased by $1.6 million during the six months endedJune 30, 2015, primarily due to one commercial relationship which was downgraded during the six months endedJune 30, 2015.

Unallocated Allowance

Determination of the unallocated portion of the allowance is a subjective process. Management believes the unallocated allowance is an important component of the total allowance because it addresses the probable inherent risk of loss that exists in that part of the Company's loan portfolio with repayment terms that extend over many years. It also helps to minimize the risk related to the margin of imprecision inherent in the estimation of the allocated components of the allowance.

The unallocated allowance for loan and lease losses was $2.6 million at June 30, 2015, compared to $2.4 million at December 31, 2014. The unallocated portion of the allowance for loan and lease losses increased by $0.2 million during the six months endedJune 30, 2015, largely as the result of the increase in overall allowance for loan and lease losses.

Credit Quality Assessment

At the time of loan origination, a rating is assigned based on the financial strength of the borrower and the value of assets pledged as collateral. The Company continually monitors the asset quality of the loan portfolio using all available information. The officer responsible for handling each loan is required to initiate changes to risk ratings when changes in facts and circumstances occur that warrant an upgrade or downgrade in a loan rating. Based on this information, loans demonstrating certain payment issues or other weaknesses may be categorized as delinquent, impaired, nonperforming and/or put on

20

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

nonaccrual status. Additionally, in the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower’s ability to repay the loan based on their current financial condition. If a restructured loan meets certain criteria, it may be categorized as a troubled debt restructuring.

The Company reviews numerous credit quality indicators when assessing the risk in its loan portfolio. For the commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment financing, condominium association and other consumer loan and lease classes, the Company utilizes an eight-grade loan rating system, which assigns a risk rating to each borrower based on a number of quantitative and qualitative factors associated with a loan transaction. Factors considered include industry and market conditions; position within the industry; earnings trends; operating cash flow; asset/liability values; debt capacity; guarantor strength; management and controls; financial reporting; collateral; and other considerations. In addition, the Company’s independent loan review group evaluates the credit quality and related risk ratings of the commercial real estate and commercial loan portfolios. The results of these reviews are reported to the Board of Directors. For consumer loans, the Company primarily relies on payment status for monitoring credit risk.

The ratings categories used for assessing credit risk in the commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment financing, condominium association and other consumer loan and lease classes are defined as follows:

1-4 Rating — Pass

Loan rating grades “1” through “4” are classified as “Pass,” which indicates borrowers are performing in accordance with the terms of the loan and are less likely to result in loss due to the capacity of the borrower to pay and the adequacy of the value of assets pledged as collateral.

5 Rating — Other Asset Especially Mentioned (“OAEM”)

Borrowers exhibit potential credit weaknesses or downward trends deserving management’s attention. If not checked or corrected, these trends can weaken the Company’s asset position. While potentially weak, currently these borrowers are marginally acceptable; no loss of principal or interest is envisioned.

6 Rating — Substandard

Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt. Substandard loans may be inadequately protected by the current net worth and paying capacity of the obligors or by the collateral pledged, if any. Normal repayment from the borrower is in jeopardy. Although no loss of principal is envisioned, there is a distinct possibility that a partial loss of interest and/or principal will occur if the deficiencies are not corrected. Collateral coverage may be inadequate to cover the principal obligation.

7 Rating — Doubtful

Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt with the added provision that the weaknesses make collection of the debt in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Serious problems exist to the point where partial loss of principal is likely.

8 Rating — Definite Loss

Borrowers deemed incapable of repayment. Loans to such borrowers are considered uncollectable and of such little value that continuation as active assets of the Company is not warranted.

Assets rated as “OAEM,” “substandard” or “doubtful” based on criteria established under banking regulations are collectively referred to as “criticized” assets.

21

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Credit Quality Information

The following tables present the recorded investment in loans in each class at June 30, 2015 by credit quality indicator.

	At June 30, 2015
	Commercial Real Estate Mortgage		Multi- Family Mortgage		Construction		Commercial		Equipment Financing		Condominium Association		Other Consumer
	(In Thousands)
Originated:
Loan rating:
Pass	$	1,514,670	$	574,892	$	126,755	$	531,060	$	633,364	$	55,185	$	12,021
OAEM	12,921		1,191		220		7,622		1,198		—		—
Substandard	3,174		309		—		9,171		1,369		—		37
Doubtful	—		—		—		874		1,480		—		—
Total originated	1,530,765		576,392		126,975		548,727		637,411		55,185		12,058
Acquired:
Loan rating:
Pass	213,309		49,233		531		24,813		11,036		—		139
OAEM	5,081		710		—		1,021		—		—		—
Substandard	8,715		1,236		—		3,898		—		—		—
Doubtful	411		—		—		89		—		—		—
Total acquired	227,516		51,179		531		29,821		11,036		—		139
Total loans	$	1,758,281	$	627,571	$	127,506	$	578,548	$	648,447	$	55,185	$	12,197

At June 30, 2015, there were no loans categorized as definite loss.

	At June 30, 2015
	Indirect Automobile
	($ In Thousands)
Originated:
Credit score:
Over 700	$	7,665	39.6	%
661-700	2,815		14.5	%
660 and below	8,762		45.2	%
Data not available	135		0.7	%
Total loans	$	19,377	100.0	%

22

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At June 30, 2015
	Residential Mortgage				Home Equity
	($ In Thousands)				($ In Thousands)
Originated:
Loan-to-value ratio:
Less than 50%	$	112,562	18.7	%	$	114,866	38.4	%
50% - 69%	204,585		33.9	%	43,341		14.5	%
70% - 79%	169,265		28.1	%	31,228		10.4	%
80% and over	18,758		3.1	%	16,486		5.5	%
Data not available	1,658		0.3	%	914		0.3	%
Total originated	506,828		84.1	%	206,835		69.1	%
Acquired:
Loan-to-value ratio:
Less than 50%	20,598		3.4	%	57,062		19.0	%
50% - 69%	34,968		5.8	%	22,208		7.4	%
70% - 79%	21,280		3.5	%	9,256		3.1	%
80% and over	15,055		2.5	%	3,248		1.1	%
Data not available	4,344		0.7	%	787		0.3	%
Total acquired	96,245		15.9	%	92,561		30.9	%
Total loans	$	603,073	100.0	%	$	299,396	100.0	%

23

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The following tables present the recorded investment in loans in each class at December 31, 2014 by credit quality indicator.

	At December 31, 2014
	Commercial Real Estate Mortgage		Multi- Family Mortgage		Construction		Commercial		Equipment Financing		Condominium Association		Other Consumer
	(In Thousands)
Originated:
Loan rating:
Pass	$	1,402,121	$	574,972	$	146,074	$	447,778	$	583,340	$	51,593	$	11,540
OAEM	22,491		1,242		—		12,193		932		—		—
Substandard	1,009		—		—		1,671		2,338		—		40
Doubtful	—		—		—		1,088		886		—		—
Total originated	1,425,621		576,214		146,074		462,730		587,496		51,593		11,580
Acquired:
Loan rating:
Pass	237,439		60,837		1,709		43,925		13,795		—		167
OAEM	8,351		713		230		1,852		—		—		—
Substandard	8,250		1,942		—		5,424		133		—		—
Doubtful	421		—		—		146		—		—		—
Total acquired	254,461		63,492		1,939		51,347		13,928		—		167
Total loans	$	1,680,082	$	639,706	$	148,013	$	514,077	$	601,424	$	51,593	$	11,747

At December 31, 2014, there were no loans categorized as definite loss.

	At December 31, 2014
	Indirect Automobile
	($ In Thousands)
Originated:
Credit score:
Over 700	$	262,160	82.7	%
661-700	43,422		13.7	%
660 and below	9,927		3.1	%
Data not available	1,478		0.5	%
Total loans	$	316,987	100.0	%

24

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At December 31, 2014
	Residential Mortgage				Home Equity
	($ In Thousands)				($ In Thousands)
Originated:
Loan-to-value ratio:
Less than 50%	$	105,342	18.4	%	$	113,541	39.6	%
50% - 69%	179,319		31.4	%	35,660		12.4	%
70% - 79%	166,467		29.1	%	27,123		9.4	%
80% and over	19,335		3.4	%	4,195		1.5	%
Data not available	1,615		0.3	%	1,061		0.4	%
Total originated	472,078		82.6	%	181,580		63.2	%
Acquired:
Loan-to-value ratio:
Less than 50%	19,574		3.4	%	70,293		24.5	%
50% - 69%	35,131		6.2	%	22,581		7.9	%
70% - 79%	22,972		4.0	%	10,569		3.7	%
80% and over	16,268		2.8	%	1,178		0.4	%
Data not available	5,897		1.0	%	857		0.3	%
Total acquired	99,842		17.4	%	105,478		36.8	%
Total loans	$	571,920	100.0	%	$	287,058	100.0	%

25

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Age Analysis of Past Due Loans and Leases

The following tables present an age analysis of the recorded investment in total loans and leases at June 30, 2015 and December 31, 2014.

	At June 30, 2015
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Originated:
Commercial real estate loans:
Commercial real estate mortgage	$	454	$	2,147	$	1,235	$	3,836	$	1,526,929	$	1,530,765	$	208	$	3,174
Multi-family mortgage	—		—		309		309		576,083		576,392		—		309
Construction	—		—		—		—		126,975		126,975		—		—
Total commercial real estate loans	454		2,147		1,544		4,145		2,229,987		2,234,132		208		3,483
Commercial loans and leases:
Commercial	4,589		3,545		1,040		9,174		539,553		548,727		—		8,996
Equipment financing	2,005		306		2,020		4,331		633,080		637,411		1		2,639
Condominium association	—		—		—		—		55,185		55,185		—		—
Total commercial loans and leases	6,594		3,851		3,060		13,505		1,227,818		1,241,323		1		11,635
Indirect automobile	1,492		477		76		2,045		17,332		19,377		—		417
Consumer loans:
Residential mortgage	—		—		229		229		506,599		506,828		—		2,251
Home equity	51		—		106		157		206,678		206,835		—		159
Other consumer	273		3		34		310		11,748		12,058		1		42
Total consumer loans	324		3		369		696		725,025		725,721		1		2,452
Total originated loans and leases	$	8,864	$	6,478	$	5,049	$	20,391	$	4,200,162	$	4,220,553	$	210	$	17,987

26

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At June 30, 2015
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Acquired:
Commercial real estate loans:
Commercial real estate mortgage	$	1,183	$	527	$	4,409	$	6,119	$	221,397	$	227,516	$	4,409	$	—
Multi-family mortgage	—		—		2,391		2,391		48,788		51,179		2,391		—
Construction	—		—		—		—		531		531		—		—
Total commercial real estate loans	1,183		527		6,800		8,510		270,716		279,226		6,800		—
Commercial loans and leases:
Commercial	941		—		3,611		4,552		25,269		29,821		343		3,320
Equipment financing	26		—		—		26		11,010		11,036		—		—
Total commercial loans and leases	967		—		3,611		4,578		36,279		40,857		343		3,320
Consumer loans:
Residential mortgage	912		—		2,862		3,774		92,471		96,245		2,692		170
Home equity	562		164		1,126		1,852		90,709		92,561		175		1,985
Other consumer	—		—		—		—		139		139		—		—
Total consumer loans	1,474		164		3,988		5,626		183,319		188,945		2,867		2,155
Total acquired loans and leases	$	3,624	$	691	$	14,399	$	18,714	$	490,314	$	509,028	$	10,010	$	5,475
Total loans and leases	$	12,488	$	7,169	$	19,448	$	39,105	$	4,690,476	$	4,729,581	$	10,220	$	23,462

27

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At December 31, 2014
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Originated:
Commercial real estate loans:
Commercial real estate mortgage	$	1,631	$	416	$	160	$	2,207	$	1,423,414	$	1,425,621	$	—	$	1,009
Multi-family mortgage	385		—		—		385		575,829		576,214		—		—
Construction	—		—		—		—		146,074		146,074		—		—
Total commercial real estate loans	2,016		416		160		2,592		2,145,317		2,147,909		—		1,009
Commercial loans and leases:
Commercial	758		876		1,499		3,133		459,597		462,730		2		2,722
Equipment financing	1,534		138		2,392		4,064		583,432		587,496		—		3,214
Condominium association	501		—		—		501		51,092		51,593		—		—
Total commercial loans and leases	2,793		1,014		3,891		7,698		1,094,121		1,101,819		2		5,936
Indirect automobile	4,635		923		166		5,724		311,263		316,987		—		645
Consumer loans:
Residential mortgage	—		—		501		501		471,577		472,078		—		1,340
Home equity	75		52		129		256		181,324		181,580		—		161
Other consumer	17		5		30		52		11,528		11,580		—		41
Total consumer loans	92		57		660		809		664,429		665,238		—		1,542
Total originated loans and leases	$	9,536	$	2,410	$	4,877	$	16,823	$	4,215,130	$	4,231,953	$	2	$	9,132

28

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At December 31, 2014
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Acquired:
Commercial real estate loans:
Commercial real estate mortgage	$	989	$	3,705	$	2,387	$	7,081	$	247,380	$	254,461	$	2,387	$	—
Multi-family mortgage	195		729		363		1,287		62,205		63,492		363		—
Construction	—		—		—		—		1,939		1,939		—		—
Total commercial real estate loans	1,184		4,434		2,750		8,368		311,524		319,892		2,750		—
Commercial loans and leases:
Commercial	712		488		3,033		4,233		47,114		51,347		624		2,474
Equipment financing	2		52		66		120		13,808		13,928		73		9
Total commercial loans and leases	714		540		3,099		4,353		60,922		65,275		697		2,483
Consumer loans:
Residential mortgage	—		—		2,715		2,715		97,127		99,842		2,372		342
Home equity	1,005		733		923		2,661		102,817		105,478		187		1,757
Other consumer	—		—		—		—		167		167		—		—
Total consumer loans	1,005		733		3,638		5,376		200,111		205,487		2,559		2,099
Total acquired loans and leases	$	2,903	$	5,707	$	9,487	$	18,097	$	572,557	$	590,654	$	6,006	$	4,582
Total loan and leases	$	12,439	$	8,117	$	14,364	$	34,920	$	4,787,687	$	4,822,607	$	6,008	$	13,714

Commercial Real Estate Loans — At June 30, 2015, loans outstanding in the three classes within this segment expressed as a percentage of total loans and leases outstanding were as follows: commercial real estate mortgage loans — 37.2%; multi-family mortgage loans — 13.3%; and construction loans — 2.7%.

Loans in this portfolio that are on nonaccrual status and/or risk-rated “substandard” or worse are evaluated on an individual loan basis for impairment. For non-impaired commercial real estate loans, loss factors are applied to outstanding loans by risk rating for each of the three classes in the portfolio. The factors applied are based primarily on historic loan loss experience and an assessment of internal and external factors and other relevant information.

Commercial Loans and Leases — At June 30, 2015, loans and leases outstanding in the three classes within this segment expressed as a percent of total loans and leases outstanding were as follows: commercial loans and leases — 12.2%; equipment financing loans — 13.7%; and loans to condominium associations — 1.2%.

Loans and leases in this portfolio that are on nonaccrual status and/or risk-rated “substandard” or worse are evaluated on an individual basis for impairment. For non-impaired commercial loans and leases, loss factors are applied to outstanding loans by risk rating for each of the three classes in the portfolio.

Indirect Automobile Loans — At June 30, 2015, indirect automobile loans represented 0.4% of the Company’s total loan and lease portfolio. Determination of the allowance for loan and lease losses for this portfolio is based primarily on payment status and historical loss rates.

29

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Consumer Loans — At June 30, 2015, loans outstanding within the three classes within this segment expressed as a percent of total loans and leases outstanding were as follows: residential mortgage loans — 12.8%; home equity loans — 6.3%; and other consumer loans — 0.3%.

Significant risk characteristics related to the residential mortgage and home equity loan portfolios are the geographic concentration of the properties financed within selected communities in the greater Boston and Providence metropolitan areas. The payment status and loan-to-value ratio are the primary credit quality indicators used for residential mortgage loans and home equity loans. Generally, loans are not made when the loan-to-value ratio exceeds 80% unless private mortgage insurance is obtained and/or there is a financially strong guarantor. Consumer loans that become 90 days or more past due, or are placed on nonaccrual regardless of past due status, are reviewed on an individual basis for impairment by assessing the net realizable value of underlying collateral and the economic condition of the borrower.

Impaired Loans and Leases

A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan agreement. The Company has defined the population of impaired loans to include nonaccrual loans and troubled debt restructured loans.

When the ultimate collectability of the total principal of an impaired loan or lease is in doubt and the loan is on nonaccrual status, all payments are applied to principal, under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan or lease is not in doubt and the loan or lease is on nonaccrual status, contractual interest is credited to interest income when received, under the cash basis method.

The following tables include the recorded investment and unpaid principal balances of impaired loans and leases with the related allowance amount, if applicable, for the originated and acquired loan and lease portfolios at the dates indicated. Also presented are the average recorded investments in the impaired loans and leases and the related amount of interest recognized during the period that the impaired loans were impaired.

30

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At June 30, 2015						At December 31, 2014
	Recorded Investment (1)		Unpaid Principal Balance		Related Allowance		Recorded Investment (2)		Unpaid Principal Balance		Related Allowance
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,198	$	5,193	$	—	$	2,751	$	2,748	$	—
Commercial	14,494		14,468		—		13,440		13,421		—
Consumer	3,951		3,946		—		3,055		3,048		—
Total originated with no related allowance recorded	23,643		23,607		—		19,246		19,217		—
With an allowance recorded:
Commercial real estate	4,087		4,087		88		4,119		4,119		108
Commercial	6,462		6,454		2,405		2,019		2,011		768
Consumer	163		162		—		176		176		10
Total originated with an allowance recorded	10,712		10,703		2,493		6,314		6,306		886
Total originated impaired loans and leases	34,355		34,310		2,493		25,560		25,523		886
Acquired:
With no related allowance recorded:
Commercial real estate	8,263		8,264		—		9,413		9,428		—
Commercial	4,824		4,824		—		6,049		6,047		—
Consumer	8,263		8,278		—		6,688		6,688		—
Total acquired with no related allowance recorded	21,350		21,366		—		22,150		22,163		—
With an allowance recorded:
Commercial real estate	—		—		—		244		244		22
Commercial	598		598		238		478		478		214
Consumer	366		366		47		225		225		41
Total acquired with an allowance recorded	964		964		285		947		947		277
Total acquired impaired loans and leases	22,314		22,330		285		23,097		23,110		277
Total impaired loans and leases	$	56,669	$	56,640	$	2,778	$	48,657	$	48,633	$	1,163

⁽¹⁾Includes originated and acquired nonaccrual loans of $16.3 million and $5.5 million, respectively, at June 30, 2015.

⁽²⁾Includes originated and acquired nonaccrual loans of $7.1 million and $4.6 million, respectively, at December 31, 2014.

31

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	Three Months Ended
	June 30, 2015				June 30, 2014
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,204	$	21	$	947	$	12
Commercial	14,942		151		5,711		62
Consumer	3,966		15		128		—
Total originated with no related allowance recorded	24,112		187		6,786		74
With an allowance recorded:
Commercial real estate	4,092		49		3,010		22
Commercial	6,497		3		3,800		24
Consumer	165		—		3,582		15
Total originated with an allowance recorded	10,754		52		10,392		61
Total originated impaired loans and leases	34,866		239		17,178		135
Acquired:
With no related allowance recorded:
Commercial real estate	8,596		38		20,402		182
Commercial	4,931		17		6,775		23
Consumer	8,295		14		4,807		5
Total acquired with no related allowance recorded	21,822		69		31,984		210
With an allowance recorded:
Commercial real estate	—		—		1,522		3
Commercial	598		—		1,948		14
Consumer	370		3		770		1
Total acquired with an allowance recorded	968		3		4,240		18
Total acquired impaired loans and leases	22,790		72		36,224		228
Total impaired loans and leases	$	57,656	$	311	$	53,402	$	363

32

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	Six Months Ended
	June 30, 2015				June 30, 2014
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,066	$	44	$	2,422	$	48
Commercial	15,086		303		4,796		70
Consumer	4,023		30		1,980		13
Total originated with no related allowance recorded	24,175		377		9,198		131
With an allowance recorded:
Commercial real estate	4,100		99		1,587		22
Commercial	6,180		6		3,728		48
Consumer	168		—		1,940		15
Total originated with an allowance recorded	10,448		105		7,255		85
Total originated impaired loans and leases	34,623		482		16,453		216
Acquired:
With no related allowance recorded:
Commercial real estate	9,462		75		13,990		228
Commercial	4,717		32		7,498		59
Consumer	7,843		29		6,539		10
Total acquired with no related allowance recorded	22,022		136		28,027		297
With an allowance recorded:
Commercial real estate	122		—		2,971		40
Commercial	735		—		1,247		15
Consumer	365		5		385		1
Total acquired with an allowance recorded	1,222		5		4,603		56
Total acquired impaired loans and leases	23,244		141		32,630		353
Total impaired loans and leases	$	57,867	$	623	$	49,083	$	569

33

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The following tables present information regarding impaired and non-impaired loans and leases at the dates indicated:

	At June 30, 2015
	Commercial Real Estate		Commercial		Indirect Automobile		Consumer		Unallocated		Total
	(In Thousands)
Allowance for Loan and Lease Losses:
Originated:
Individually evaluated for impairment	$	88	$	2,405	$	—	$	—	$	—	$	2,493
Collectively evaluated for impairment	27,471		17,291		381		3,547		2,560		51,250
Total originated loans and leases	27,559		19,696		381		3,547		2,560		53,743
Acquired:
Individually evaluated for impairment	—		238		—		46		—		284
Collectively evaluated for impairment	620		199		—		61		—		880
Acquired with deteriorated credit quality	1,037		96		—		358		—		1,491
Total acquired loans and leases	1,657		533		—		465		—		2,655
Total allowance for loan and lease losses	$	29,216	$	20,229	$	381	$	4,012	$	2,560	$	56,398
Loans and Leases:
Originated:
Individually evaluated for impairment	$	9,285	$	20,956	$	—	$	4,114	$	—	$	34,355
Collectively evaluated for impairment	2,224,847		1,220,367		19,377		721,607		—		4,186,198
Total originated loans and leases	2,234,132		1,241,323		19,377		725,721		—		4,220,553
Acquired:
Individually evaluated for impairment	605		4,667		—		3,370		—		8,642
Collectively evaluated for impairment	79,356		22,915		—		118,337		—		220,608
Acquired with deteriorated credit quality	199,265		13,275		—		67,238		—		279,778
Total acquired loans and leases	279,226		40,857		—		188,945		—		509,028
Total loans and leases	$	2,513,358	$	1,282,180	$	19,377	$	914,666	$	—	$	4,729,581

34

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At December 31, 2014
	Commercial Real Estate		Commercial		Indirect Automobile		Consumer		Unallocated		Total
	(In Thousands)
Allowance for Loan and Lease Losses:
Originated:
Individually evaluated for impairment	$	108	$	768	$	—	$	10	$	—	$	886
Collectively evaluated for impairment	27,457		14,631		2,331		3,088		2,418		49,925
Total originated loans and leases	27,565		15,399		2,331		3,098		2,418		50,811
Acquired:
Individually evaluated for impairment	—		144		—		41		—		185
Collectively evaluated for impairment	648		222		—		2		—		872
Acquired with deteriorated credit quality	1,381		192		—		218		—		1,791
Total acquired loans and leases	2,029		558		—		261		—		2,848
Total allowance for loan and lease losses	$	29,594	$	15,957	$	2,331	$	3,359	$	2,418	$	53,659
Loans and Leases:
Originated:
Individually evaluated for impairment	$	6,870	$	15,459	$	—	$	3,231	$	—	$	25,560
Collectively evaluated for impairment	2,141,039		1,086,360		316,987		662,007		—		4,206,393
Total originated loans and leases	2,147,909		1,101,819		316,987		665,238		—		4,231,953
Acquired:
Individually evaluated for impairment	626		4,458		—		2,562		—		7,646
Collectively evaluated for impairment	97,141		38,504		—		134,973		—		270,618
Acquired with deteriorated credit quality	222,125		22,313		—		67,952		—		312,390
Total acquired loans and leases	319,892		65,275		—		205,487		—		590,654
Total loans and leases	$	2,467,801	$	1,167,094	$	316,987	$	870,725	$	—	$	4,822,607

Troubled Debt Restructured Loans and Leases

A specific valuation allowance for losses on troubled debt restructured loans is determined by comparing the net carrying amount of the troubled debt restructured loan with the restructured loan's cash flows discounted at the original effective rate.

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Troubled debt restructurings:
On accrual	$	14,205	$	14,815
On nonaccrual	5,981		5,625
Total troubled debt restructurings	$	20,186	$	20,440

35

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The recorded investment in troubled debt restructurings and the associated specific allowances for loan and lease losses, in the originated and acquired loan and lease portfolios, are as follows for the periods indicated.

	At and for the Three Months Ended June 30, 2015
	Recorded Investment					Specific				Defaulted(1)
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial	3	$	732	$	730	$	122	$	245	$	—	1	245
Total Originated	3	732		730		122		245		—		1	245
Acquired:
Commercial	3	392		391		—		13		—		2	406
Total Acquired	3	392		391		—		13		—		2	406
Total	6	$	1,124	$	1,121	$	122	$	258	$	—	3	$	651

(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

	At and for the Three Months Ended June 30, 2014
	Recorded Investment					Specific				Defaulted(1)
	Number  of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial real estate mortgage	2	$	390	$	365	$	17	$	17	$	—	—	$	—
Equipment financing	1	289		289		—		—		—		1	259
Residential mortgage	1	291		291		—		—		—		—	—
Total Originated	4	970		945		17		17		—		1	259
Acquired:
Commercial	2	253		261		9		261		—		—	—
Total Acquired	2	253		261		9		261		—		—	—
Total	6	$	1,223	$	1,206	$	26	$	278	$	—	1	$	259

(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

36

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	At and for the Six Months Ended June 30, 2015
	Recorded Investment					Specific				Defaulted
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial	4	$	2,702	$	2,371	$	122	$	245	$	—	1	$	245
Equipment financing	1	112		106		—		—		—		—	—
Total Originated	5	2,814		2,477		122		245		—		1	245
Acquired:
Commercial	4	642		641		—		13		—		3	418
Home equity	2	164		164		12		24		—		1	24
Total Acquired	6	806		805		12		37		—		4	442
Total	11	$	3,620	$	3,282	$	134	$	282	$	—	5	$	687

	At and for the Six Months Ended June 30, 2014
	Recorded Investment					Specific				Defaulted
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial real estate mortgage	1	$	953	$	944	$	—	$	—	$	—	—	$	—
Commercial	2	390		365		17		17		—		—	—
Equipment financing	2	673		671		—		—		—		3	349
Residential mortgage	2	789		786		—		495		—		—	—
Total Originated	7	2,805		2,766		17		512		—		3	349
Acquired:
Commercial	2	253		261		9		261		—		—	—
Total Acquired	2	253		261		9		261		—		—	—
Total	9	$	3,058	$	3,027	$	26	$	773	$	—	3	$	349

37

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The following table sets forth the Company’s balances of troubled debt restructurings that were modified at the dates indicated, by type of modification.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In Thousands)
Loans with one modification:
Extended maturity	$	135	$	609	$	409	$	609
Adjusted interest rate	—		—		$	140	$	878
Interest only	—		17		106		17
Total loans with one modification	135		626		655		1,504
Loans with more than one modification:
Extended maturity	986		289		2,627		1,232
Adjusted principal	—		291		—		291
Total loans with more than one modification	986		580		2,627		1,523
Total loans with modifications	$	1,121	$	1,206	$	3,282	$	3,027

The financial impact of the modification of performing and nonperforming loans and leases for the three and six months ended months ended June 30, 2015 was nominal. The financial impact of the modification of performing and nonperforming loans and leases for the three and six months endedJune 30, 2014 was $0.1 million and $0.1 million, respectively.

As of June 30, 2015 and 2014, there were no commitments to lend funds to debtors owing receivables whose terms had been modified in troubled debt restructurings.

(6)  Premises and Equipment

In January 2014, the Company completed a transaction to sell a facility located in Brookline, MA, for $2.2 million. The carrying value of the property, including land, building, and furniture, fixtures, and equipment, was $0.4 million. After costs to sell of $0.2 million, the Company recorded a gain on sale in the amount of $1.6 million during the six months endedJune 30, 2014, which is included in gain on sale/disposals of premises and equipment, net in the Company’s unaudited consolidated statements of income. There were no sales of premises and equipment during the three and six months endedJune 30, 2015.

(7)Goodwill and Other Intangible Assets

The following table sets forth the carrying value of goodwill and other intangible assets at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Goodwill	$	137,890	$	137,890
Other intangible assets:
Core deposits	10,993		12,455
Trade name	1,089		1,089
Total other intangible assets	12,082		13,544
Total goodwill and other intangible assets	$	149,972	$	151,434

The Company concluded that the BankRI name would continue to be utilized in its marketing strategies; therefore, the trade name with carrying value of $1.1 million has an indefinite life.

38

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The estimated aggregate future amortization expense (in thousands) for intangible assets with a finite life remaining at June 30, 2015 is as follows:

Remainder of 2015	$	1,449
Year ending:
2016	2,500
2017	2,089
2018	1,669
2019	1,295
Thereafter	1,991
Total	$	10,993

(8)Investments in Qualified Affordable Housing Projects

The Company began investing in affordable housing projects that benefit low- and moderate-income individuals in 2009. As of June 30, 2015, the Company has investments in 8 of these projects. The project sponsor or general partner controls the project's management. In each case, the Company is a limited partner with less than 50% of the outstanding equity interest in any single project.

On January 1, 2015, the Company adopted ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects, which required retrospective application. Prior to the implementation of ASU 2014-01, the Company’s investments in qualified affordable housing projects were accounted for using the equity method. Under the equity method, operating losses or gains from these investments were included as a component of non-interest income in the Company's consolidated statements of income. ASU 2014-01 calls for the use of the proportional amortization method calculation and the operating losses or gains for these investments are included as a component of the provision for income taxes in the Company’s consolidated statements of income. Under the proportional amortization method, the initial costs of the investment in qualified affordable housing projects is amortized based on the tax credits and other benefits received.

Further information regarding the Company's investments in affordable housing projects follows:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Investments in affordable housing projects included in other assets	$	10,400	$	10,313
Unfunded commitments related to affordable housing projects included in other liabilities	1,982		2,608
Investments in affordable housing projects tax credits included in other liabilities	794		1,432
Investments in affordable housing projects tax benefits included in other liabilities	328		669

	At and for the Three Months Ended    June 30, 2015		At and for the Six Months Ended June 30, 2015
	(In Thousands)
Investment amortization included in pretax income	$	393	$	803
Amount recognized as income tax benefit	151		302

ASU 2014-01 was applied retrospectively to all periods presented. The cumulative effect on retained earnings was $1.1 million at January 1, 2015.

39

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The following table illustrates the prior period adjustments related to the adoption of ASU 2014-01.

	At December 31, 2014
	(In Thousands)
Other assets, as reported	$	79,411
Prior period adjustment	1,068
Other assets, as adjusted	$	80,479
Retained earnings, as reported	$	83,792
Prior period adjustment	1,068
Retained earnings, as adjusted	$	84,860

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	(In Thousands)
Loss from investments in affordable housing projects, as reported	$	539		$	1,043
Prior period adjustment	(539		)	(1,043		)
Loss from investments in affordable housing projects, as adjusted	$	—		$	—
Provision for income taxes, as reported	$	5,774		$	11,769
Prior period adjustment	384			768
Provision for income taxes, as adjusted	$	6,158		$	12,537
Net income, as reported	$	9,976		$	20,398
Prior period adjustment	155			275
Net income, as adjusted	$	10,131		$	20,673
Basic earnings per share, as reported	$	0.14		$	0.29
Prior period adjustment	0.01			0.01
Basic earnings per share, as adjusted	$	0.15		$	0.30
Effective tax rate, as reported	35.58		%	35.59		%
Prior period adjustment	1.15		%	1.17		%
Effective tax rate, as adjusted	36.73		%	36.76		%

(9)Comprehensive Income/(Loss)

Comprehensive income (loss) represents the sum of net income (loss) and other comprehensive income (loss). For the three and six months endedJune 30, 2015 and June 30, 2014, the Company’s other comprehensive income (loss) include the following two components: (i) unrealized holding gains (losses) on investment securities available-for-sale; and (ii) adjustment of accumulated obligation for postretirement benefits.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Changes in accumulated other comprehensive (loss) income by component, net of tax, were as follows for the periods indicated:

	Three Months Ended June 30, 2015
	Investment Securities Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at March 31, 2015	$	1,636		$	111	$	1,747
Other comprehensive loss	(3,522		)	—		(3,522		)
Balance at June 30, 2015	$	(1,886	)	$	111	$	(1,775	)

	Three Months Ended June 30, 2014
	Investment Securities  Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at March 31, 2014	$	(6,301	)	$	365	$	(5,936	)
Other comprehensive income	2,727			—		2,727
Balance at June 30, 2014	$	(3,574	)	$	365	$	(3,209	)

	Six Months Ended June 30, 2015
	Investment Securities Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at December 31, 2014	$	(1,733	)	$	111	$	(1,622	)
Other comprehensive loss	(153		)	—		(153		)
Balance at June 30, 2015	$	(1,886	)	$	111	$	(1,775	)

	Six Months Ended June 30, 2014
	Investment Securities Available-for-Sale			Postretirement Benefits			Accumulated Other Comprehensive Income
	(In Thousands)
Balance at December 31, 2013	$	(8,332	)	$	417		$	(7,915	)
Other comprehensive income (loss)	4,758			(52		)	4,706
Balance at June 30, 2014	$	(3,574	)	$	365		$	(3,209	)

The following is a summary of the amounts reclassified from accumulated other comprehensive income (loss) for the three and six months endedJune 30, 2014.

	Three Months Ended			Six Months Ended			Income Statement Line Affected by Reclassification
	June 30, 2014			June 30, 2014
	(In Thousands)
Other comprehensive income (loss) component
Unrealized gains (losses) on investment securities available-for-sale	$	(13	)	$	(13	)	Loss on sales of securities, net
	5			5			Provision for income taxes
Total reclassifications for the period	$	(8	)	$	(8	)	Net income

The Company did not reclassify any amounts out of accumulated other comprehensive income (loss) for the three and six months endedJune 30, 2015.

41

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

(10)       Derivatives and Hedging Activities

The Company may use interest-rate contracts (swaps, caps and floors) as part of interest-rate risk management strategy. Interest-rate swap, cap and floor agreements are entered into as hedges against future interest-rate fluctuations on specifically identified assets or liabilities. The Company did not have derivative fair value hedges or derivative cash flow hedges at June 30, 2015 or December 31, 2014.

Derivatives not designated as hedges are not speculative but rather, result from a service the Company provides to certain customers for a fee. The Company executes interest-rate swaps with commercial banking customers to aid them in managing their interest-rate risk. The interest-rate swap contracts allow the commercial banking customers to convert floating-rate loan payments to fixed-rate loan payments. The Company concurrently enters into offsetting swaps with a third-party financial institution, effectively minimizing its net risk exposure resulting from such transactions. The third-party financial institution exchanges the customer’s fixed-rate loan payments for floating-rate loan payments. As the interest-rate swaps associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in the Company's unaudited consolidated statements of income. The Company had 34 interest-rate swaps related to this program with an aggregate notional amount of $224.7 million at June 30, 2015, compared with 22 interest-rate swaps with an aggregate notional amount of $109.4 million at December 31, 2014.

Asset derivatives and liability derivatives are included in other assets and accrued expenses and other liabilities on the unaudited consolidated balance sheets, respectively. The table below presents the fair value and classification of the Company’s derivative financial instruments at June 30, 2015 and December 31, 2014.

	At June 30, 2015				At December 31, 2014
	Asset Derivatives		Liability Derivatives		Asset Derivatives		Liability Derivatives
	(In Thousands)
Total derivatives (interest-rate products) not designated as hedging instruments	$	2,649	$	2,484	$	2,676	$	2,714

Changes in the fair value are recognized directly in the Company's unaudited consolidated statements of income and are included in other non-interest income in the consolidated statements of income. The table below presents the gain recognized in income due to changes in the fair value for the three and six months endedJune 30, 2015 and June 30, 2014.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In Thousands)
Gain recognized in income on derivatives	$	295	$	4	$	204	$	6

By using derivative financial instruments, the Company exposes itself to credit risk which is the risk of failure by the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is positive, the counterparty owes the Company, which creates credit risk for the Company. When the fair value of a derivative is negative, the Company owes the counterparty and, therefore, it does not possess credit risk. The credit risk in derivative instruments is mitigated by entering into transactions with highly-rated counterparties that management believes to be creditworthy and by limiting the amount of exposure to each counterparty. As the swaps are subject to master netting agreements, the Company had limited exposure relating to interest rate swaps with institutional counterparties. The Company had no net credit risk exposure at June 30, 2015. The estimated net credit risk exposure was $38.0 thousand at December 31, 2014.

Certain derivative agreements contain provisions that require the Company to post collateral if the derivative exposure exceeds a threshold amount. The Company has posted collateral of $7.8 million and $5.4 million in the normal course of business at June 30, 2015 and December 31, 2014, respectively.

42

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The tables below present the offsetting of derivatives and amounts subject to master netting agreements not offset in the unaudited consolidated balance sheet at the dates indicated.

	At June 30, 2015
	Gross Amounts of Recognized Assets /Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets Presented in the Statement of Financial Position		Gross Amounts Not Offset in the Statement of Financial Position				Net Amount
							Financial Instruments		Cash Collateral (Received)/ Posted
	(In Thousands)
Asset Derivatives	$	2,649	$	—	$	2,649	$	—	$	—	$	2,649
Liability Derivatives	$	2,484	$	—	$	2,484	$	3,744	$	4,030	$	10,258

	At December 31, 2014
	Gross Amounts of Recognized Assets /Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets Presented in the Statement of Financial Position		Gross Amounts Not Offset in the Statement of Financial Position				Net Amount
							Financial Instruments		Cash Collateral (Received) / Posted
	(In Thousands)
Asset Derivatives	$	2,676	$	—	$	2,676	$	—	$	—	$	2,676
Liability Derivatives	$	2,714	$	—	$	2,714	$	4,173	$	1,180	$	8,067

The Company has agreements with certain of its derivative counterparties that contain credit-risk-related contingent provisions. These provisions provide the counterparty with the right to terminate its derivative positions and require the Company to settle its obligations under the agreements if the Company defaults on certain of its indebtedness or if the Company fails to maintain its status as a well-capitalized institution. 

(11)       Stock Based Compensation

As of June 30, 2015, the Company had three active recognition and retention plans: the 2003 Recognition and Retention Plan (the "2003 RRP") with 1,250,000 authorized shares, the 2011 Restricted Stock Award Plan (the "2011 RSA") with 500,000 authorized shares and the 2014 Equity Incentive Plan (the "2014 Plan") with 1,750,000 authorized shares. The 2003 RRP, the 2011 RSA and the 2014 Plan are collectively referred to as the "Plans". The purpose of the Plans is to promote the long-term financial success of the Company and its subsidiaries by providing a means to attract, retain and reward individuals who contribute to such success and to further align their interests with those of the Company's stockholders.

Of the awarded shares, generally 50% vest ratably over three years with one-third of such shares vesting at each of the first, second and third anniversary dates of the awards. These are referred to as "time-based shares". The remaining 50% of each award has a cliff vesting schedule and will vest three years after the award date based on the level of the Company's achievement of identified performance targets in comparison to the level of achievement of such identified performance targets by a defined peer group comprised of 20 financial institutions. These are referred to as "performance-based shares". The specific performance measure targets relate to return on assets, return on tangible equity, asset quality and total shareholder return. If a participant leaves the Company prior to the third anniversary date of an award, any unvested shares will be forfeited. Dividends declared with respect to shares awarded are held by the Company and paid to the participant only when the shares vest.

Under all the Plans, shares of the Company's common stock were reserved for issuance as restricted stock awards to officers, employees, consultants and non-employee directors of the Company. Shares issued upon vesting may be either authorized but unissued shares or reacquired shares held by the Company as treasury shares. Any shares not issued because vesting requirements are not met will be retired back to treasury and be made available again for issuance under the Plans.

43

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Total expense for the Plans was $0.1 million for the three months ended June 30, 2015 compared to $0.2 million for the three months ended June 30, 2014. Total expense for the Plans was $0.5 million for the six months endedJune 30, 2015 compared to $0.6 million for the six months endedJune 30, 2014.

(12)Earnings per Share

The following table sets forth a reconciliation of basic and diluted earnings per share (“EPS”) for the periods indicated:

	Three Months Ended
	June 30, 2015				June 30, 2014
	Basic		Fully Diluted		Basic		Fully Diluted
	(In Thousands Except Share Data)
Numerator:
Net income*	$	11,865	$	11,865	$	10,131	$	10,131
Denominator:
Weighted average shares outstanding	70,049,829		70,049,829		69,886,576		69,886,576
Effect of dilutive securities	—		166,021		—		125,801
Adjusted weighted average shares outstanding	70,049,829		70,215,850		69,886,576		70,012,377
EPS*	$	0.17	$	0.17	$	0.15	$	0.14

	Six Months Ended
	June 30, 2015				June 30, 2014
	Basic		Fully Diluted		Basic		Fully Diluted
	(In Thousands Except Share Data)
Numerator:
Net income*	$	23,568	$	23,568	$	20,673	$	20,673
Denominator:
Weighted average shares outstanding	70,042,997		70,042,997		69,881,055		69,881,055
Effect of dilutive securities	—		147,018		—		117,164
Adjusted weighted average shares outstanding	70,042,997		70,190,015		69,881,055		69,998,219
EPS*	$	0.34	$	0.34	$	0.30	$	0.29

(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01.

(13)       Fair Value of Financial Instruments

A description of the valuation methodologies used for assets and liabilities measured at fair value on a recurring and non-recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. There were no changes in the valuation techniques used during the three and six months endedJune 30, 2015 and June 30, 2014.

44

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Assets and Liabilities Recorded at Fair Value on a Recurring Basis

The following tables set forth the carrying value of assets and liabilities measured at fair value on a recurring basis at the dates indicated:

	Carrying Value at June 30, 2015
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets:
Investment securities available-for-sale:
Debt securities:
GSEs	$	—	$	18,550	$	—	$	18,550
GSE CMOs	—		214,397		—		214,397
GSE MBSs	—		254,802		—		254,802
SBA commercial loan asset-backed securities	—		179		—		179
Corporate debt obligations	—		40,254		—		40,254
Trust preferred securities	—		1,321		—		1,321
Total debt securities	—		529,503		—		529,503
Marketable equity securities	973		—		—		973
Total investment securities available-for-sale	$	973	$	529,503	$	—	$	530,476
Interest-rate swaps	$	—	$	2,649	$	—	$	2,649
Liabilities:
Interest-rate swaps	$	—	$	2,484	$	—	$	2,484

45

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

	Carrying Value at December 31, 2014
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets:
Investment securities available-for-sale:
Debt securities:
GSEs	$	—	$	22,988	$	—	$	22,988
GSE CMOs	—		234,169		—		234,169
GSE MBSs	—		250,981		—		250,981
SBA commercial loan asset-backed securities	—		203		—		203
Corporate debt obligations	—		40,207		—		40,207
Trust preferred securities	—		1,240		—		1,240
Total debt securities	—		549,788		—		549,788
Marketable equity securities	973		—		—		973
Total investment securities available-for-sale	$	973	$	549,788	$	—	$	550,761
Interest-rate swaps	$	—	$	2,676	$	—	$	2,676
Liabilities:
Interest-rate swaps	$	—	$	2,714	$	—	$	2,714

Investment Securities Available-for-Sale

The fair value of investment securities is based principally on market prices and dealer quotes received from third-party and nationally-recognized pricing services for identical investment securities such as U.S. Treasury and agency securities. The Company's marketable equity securities are priced this way and are included in Level 1. These prices are validated by comparing the primary pricing source with an alternative pricing source when available. When quoted market prices for identical securities are unavailable, the Company uses market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include GSE debentures, GSE mortgage-related securities, SBA commercial loan asset backed securities, corporate debt securities, and trust preferred securities, all of which are included in Level 2. As of June 30, 2015 and December 31, 2014, no investment securities are valued using pricing models included in Level 3.

Additionally, management reviews changes in fair value from period to period and performs testing to ensure that prices received from the third parties are consistent with management's expectation of the market. Changes in the prices obtained from the pricing service are analyzed from month to month, taking into consideration changes in market conditions including changes in mortgage spreads, changes in U.S. Treasury security yields and changes in generic pricing of 15-year and 30-year securities. Additional analysis may include a review of prices provided by other independent parties, a yield analysis, a review of average life changes using Bloomberg analytics and a review of historical pricing for a particular security.

Interest-Rate Swaps

The fair values for the interest-rate swap assets and liabilities represent a Level 2 valuation and are based on settlement values adjusted for credit risks associated with the counterparties and the Company and observable market interest rate curves. Credit risk adjustments consider factors such as the likelihood of default by the Company and its counterparties, its net exposures and remaining contractual life. To date, the Company has not realized any losses due to a counterparty’s inability to pay any net uncollateralized position. See also Note 10, “Derivatives and Hedging Activities.”

46

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

The reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) is as follows:

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015		2014
	(In Thousands)
Investment securities available-for-sale, beginning of period	$	—	$	1,690		$	—	$	1,775
Investment security sales	—		(1,658		)	—		(1,658		)
Total realized losses included in other income	—		(242		)	—		(242		)
Total unrealized losses included in other comprehensive income	—		210			—		125
Investment securities available-for-sale, end of period	$	—	$	—		$	—	$	—

There were no transfers between levels for assets and liabilities recorded at fair value on a recurring basis during the three and six months endedJune 30, 2015 and 2014.

Assets and Liabilities Recorded at Fair Value on a Non-Recurring Basis

The table below summarizes assets and liabilities measured at fair value on a non-recurring basis at the dates indicated:

	Carrying Value at June 30, 2015
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets measured at fair value on a non-recurring basis:
Collateral-dependent impaired loans and leases	$	—	$	—	$	17,387	$	17,387
OREO	—		—		1,676		1,676
Repossessed assets	—		736		—		736
Total assets measured at fair value on a non-recurring basis	$	—	$	736	$	19,063	$	19,799

	Carrying Value at December 31, 2014
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets measured at fair value on a non-recurring basis:
Collateral-dependent impaired loans and leases	$	—	$	—	$	6,376	$	6,376
OREO	—		—		953		953
Repossessed assets	—		503		—		503
Total assets measured at fair value on a non-recurring basis	$	—	$	503	$	7,329	$	7,832

Collateral-Dependent Impaired Loans and Leases

For nonperforming loans and leases where the credit quality of the borrower has deteriorated significantly, fair values of the underlying collateral were estimated using purchase and sales agreements (Level 2), or comparable sales or recent appraisals (Level 3), adjusted for selling costs and other expenses.

47

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Other Real Estate Owned

The Company records other real estate owned at the lower of cost or fair value. In estimating fair value, the Company utilizes purchase and sales agreements (Level 2) or comparable sales, recent appraisals or cash flows discounted at an interest rate commensurate with the risk associated with these cash flows (Level 3), adjusted for selling costs and other expenses.

Repossessed Assets

Repossessed assets are carried at estimated fair value less costs to sell based on auction pricing (Level 2).

The table below presents quantitative information about significant unobservable inputs (Level 3) for assets measured at fair value on a recurring and non-recurring basis at the dates indicated.

	Fair Value				Valuation Technique
	At June 30, 2015		At December 31, 2014
	(Dollars in Thousands)
Collateral-dependent impaired loans and leases	$	17,387	$	6,376	Appraisal of collateral (1)
Other real estate owned	$	1,676	$	953	Appraisal of collateral (1)

(1) Fair value is generally determined through independent appraisals of the underlying collateral. The Company may also use another available source of collateral assessment to determine a reasonable estimate of the fair value of the collateral. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

Summary of Estimated Fair Values of Financial Instruments

The following table presents the carrying amount, estimated fair value, and placement in the fair value hierarchy of the Company’s financial instruments at the dates indicated. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents, FHLBB and FRB stock and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include non-maturity deposits, short-term borrowings and accrued interest payable.

48

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

					Fair Value Measurements
	Carrying Value		Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(In Thousands)
At June 30, 2015
Financial assets:
Investment securities held-to-maturity:
GSEs	$	26,925	$	26,728	$	—	$	26,728	$	—
GSE MBSs	20,993		20,775		—		20,775		—
Municipal Obligations	12,093		11,990		—		11,990		—
Foreign Government Obligations	500		500		—		—		500
Loans held-for-sale	12,482		12,482		—		12,482		—
Loans and leases, net	4,673,183		4,682,684		—		—		4,682,684
Financial liabilities:
Certificates of deposit	1,042,923		1,051,227		—		1,051,227		—
Borrowed funds	937,648		942,799		—		942,799		—
At December 31, 2014
Financial assets:
Investment securities held-to-maturity	$	500	$	500	$	—	$	—	$	500
Loans held-for-sale	1,537		1,537		—		1,537		—
Loans and leases, net	4,768,948		4,753,605		—		—		4,753,605
Financial liabilities:
Certificates of deposit	946,708		949,320		—		949,320		—
Borrowed funds	1,126,404		1,132,940		—		1,132,940		—

Investment Securities Held-to-Maturity

The fair values of certain investment securities held-to-maturity are estimated using market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include GSE debentures, GSE MBSs and municipal obligations, all of which are included in Level 2. Additionally, fair values of foreign government obligations are based on comparisons to market prices of similar securities and are considered to be Level 3.

Loans Held-for-Sale

Fair value is measured using quoted market prices when available. These assets are typically categorized as Level 1. If quoted market prices are not available, comparable market values may be utilized. These assets are typically categorized as Level 2.

Loans and Leases

The fair values of performing loans and leases were estimated by segregating the portfolio into its primary loan and lease categories—commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment financing, condominium association, indirect automobile, residential mortgage, home equity and other consumer. These categories were further disaggregated based on significant financial characteristics such as type of interest rate (fixed / variable) and payment status (current / past-due). The Company discounts the contractual cash flows for each loan category using interest rates currently being offered for loans with similar terms to borrowers of similar quality and incorporates estimates of future loan prepayments. This method of estimating fair value does not incorporate the exit price concept of fair value.

49

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Deposits

The fair values of deposit liabilities with no stated maturity (demand, NOW, savings and money market savings accounts) are equal to the carrying amounts payable on demand. The fair value of certificates of deposit represents contractual cash flows discounted using interest rates currently offered on deposits with similar characteristics and remaining maturities. The fair value estimates for deposits do not include the benefit that results from the low-cost funding provided by the Company’s core deposit relationships (deposit-based intangibles).

Borrowed Funds

The fair value of federal funds purchased is equal to the amount borrowed. The fair value of FHLBB advances and repurchase agreements represents contractual repayments discounted using interest rates currently available for borrowings with similar characteristics and remaining maturities. The fair values reported for retail repurchase agreements are based on the discounted value of contractual cash flows. The discount rates used are representative of approximate rates currently offered on borrowings with similar characteristics and maturities. The fair values reported for subordinated deferrable interest debentures are based on the discounted value of contractual cash flows. The discount rates used are representative of approximate rates currently offered on instruments with similar terms and maturities.

(14)  Commitments and Contingencies

Off-Balance-Sheet Financial Instruments

The Company is party to off-balance-sheet financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include loan commitments, standby and commercial letters of credit, and interest-rate swaps. According to GAAP, these financial instruments are not recorded in the financial statements until they are funded or related fees are incurred or received.

The contract amounts reflect the extent of the involvement the Company has in particular classes of these instruments. Such commitments involve, to varying degrees, elements of credit risk and interest-rate risk in excess of the amount recognized in the consolidated balance sheet. The Company’s exposure to credit loss in the event of non-performance by the counterparty is represented by the contractual amount of the instruments. The Company uses the same policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Financial instruments with off-balance-sheet risk at the dates indicated follow:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to originate loans and leases:
Commercial real estate	$	48,538	$	107,179
Commercial	64,611		102,353
Residential mortgage	11,267		20,520
Unadvanced portion of loans and leases	533,214		629,351
Unused lines of credit:
Home equity	256,468		244,603
Other consumer	13,257		10,876
Other commercial	816		728
Unused letters of credit:
Financial standby letters of credit	17,781		16,762
Performance standby letters of credit	342		3,126
Commercial and similar letters of credit	223		50
Back-to-back interest-rate swaps	224,748		109,362

Commitments to extend credit are agreements to lend to a customer 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 the payment of a fee by the customer. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if any, is based on management’s credit evaluation of the borrower.

Standby and commercial letters of credit are conditional commitments issued by the Company to guarantee performance of a customer to a third party. These standby and commercial letters of credit are primarily issued to support the financing needs of the Company’s commercial customers. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers.

The liability for unfunded credit commitments, which is included in other liabilities, was $1.4 million at June 30, 2015 and $1.3 million at December 31, 2014.

From time to time, the Company enters into back-to-back interest rate swaps with commercial customers and third-party financial institutions. These swaps allow the Company to offer long-term fixed-rate commercial loans while mitigating the interest-rate risk of holding those loans. In a back-to-back interest rate swap transaction, the Company lends to a commercial customer on a floating-rate basis and then enters into an interest rate swap with that customer. Concurrently, the Company enters into offsetting swaps with a third-party financial institution, effectively minimizing its net interest-rate risk exposure resulting from such transactions.

The fair value of interest rate swap assets and liabilities was $2.6 million and $2.5 million, respectively, at June 30, 2015. The fair value of interest rate swap assets and liabilities was $2.7 million and $2.7 million, respectively, at December 31, 2014.

Lease Commitments

 The Company leases certain office space under various noncancellable operating leases. These leases have original terms ranging from 5 years to over 20 years. Certain leases contain renewal options and escalation clauses which can increase rental expenses based principally on the consumer price index and fair market rental value provisions.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

A summary of future minimum rental payments under such leases at the dates indicated follows:

	Minimum Rental Payments
	(In Thousands)
Remainder of 2015	$	2,749
Year ending:
2016	5,344
2017	4,820
2018	4,265
2019	3,353
Thereafter	12,266
Total	$	32,797

The leases contain escalation clauses for real estate taxes and other expenditures. Total rental expense was $2.6 million during the six months ended June 30, 2015, with minimal lease acceleration. This compared to rental expense of $3.6 million during the six months ended June 30, 2014, which included $0.8 million in lease acceleration related to a relocation of an operations center and a closure of a branch property.

Legal Proceedings

There are various outstanding legal proceedings in the normal course of business. In the opinion of management, after consulting with legal counsel, the consolidated financial position and results of operations of the Company are not expected to be affected by the outcome of such proceedings.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

Certain statements contained in this Quarterly Report on Form 10-Q that are not historical facts may constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and are intended to be covered by the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties. These statements, which are based on certain assumptions and describe Brookline Bancorp, Inc.’s (the “Company’s”) future plans, strategies and expectations, can generally be identified by the use of the words “may,” “will,” “should,” “could,” “would,” “plan,” “potential,” “estimate,” “project,” “believe,” “intend,” “anticipate,” “expect,” “target” and similar expressions. These statements include, among others, statements regarding the Company’s intent, belief or expectations with respect to economic conditions, trends affecting the Company’s financial condition or results of operations, and the Company’s exposure to market, liquidity, interest-rate and credit risk.

Forward-looking statements are based on the current assumptions underlying the statements and other information with respect to the beliefs, plans, objectives, goals, expectations, anticipations, estimates and intentions of management and the financial condition, results of operations, future performance and business are only expectations of future results. Although the Company believes that the expectations reflected in the Company’s forward-looking statements are reasonable, the Company’s actual results could differ materially from those projected in the forward-looking statements as a result of, among other factors, adverse conditions in the capital and debt markets; changes in interest rates; competitive pressures from other financial institutions; the effects of weakness in general economic conditions on a national basis or in the local markets in which the Company operates, including changes which adversely affect borrowers’ ability to service and repay their loans and leases; changes in the value of securities and other assets in the Company’s investment portfolio; changes in loan and lease default and charge-off rates; the adequacy of allowances for loan and lease losses; deposit levels necessitating increased borrowing to fund loans and investments; changes in government regulation; the risk that goodwill and intangibles recorded in the Company’s financial statements will become impaired; and changes in assumptions used in making such forward-looking statements, as well as the other risks and uncertainties detailed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014 and other filings submitted to the Securities and Exchange Commission. Forward-looking statements speak only as of the date on which they are made. The Company does not undertake any obligation to update any forward-looking statement to reflect circumstances or events that occur after the date the forward-looking statements are made.

Introduction

The Company, a Delaware corporation, operates as a multi-bank holding company for Brookline Bank and its subsidiaries; Bank Rhode Island (“BankRI”) and its subsidiaries; First Ipswich Bank (“First Ipswich”) and its subsidiaries; and Brookline Securities Corp.

As a commercially-focused financial institution with 48 full-service banking offices throughout greater Boston, the north shore of Massachusetts and Rhode Island, the Company, through Brookline Bank, BankRI and First Ipswich (the “Banks”), offers a wide range of commercial, business and retail banking services, including a full complement of cash management products, on-line and mobile banking services, consumer and residential loans and investment services, designed to meet the financial needs of small- to mid-sized businesses and individuals throughout central New England. Specialty lending activities include equipment financing primarily in the New York/New Jersey metropolitan area.

The Company focuses its business efforts on profitably growing its commercial lending businesses, both organically and through acquisitions. The Company’s customer focus, multi-bank structure, and risk management are integral to its organic growth strategy and serve to differentiate the Company from its competitors. As full-service financial institutions, the Banks and their subsidiaries focus on the continued acquisition of well-qualified customers, the deepening of long-term banking relationships through a full complement of products and excellent customer service, and strong risk management.

The Company manages the Banks under uniform strategic objectives, with one set of uniform policies consistently applied by one executive management team. Within this environment, the Company believes that the ability to make customer decisions locally enhances management's motivation, service levels and, as a consequence, the Company's financial results. As such, while most back-office functions are consolidated at the holding company level, branding and decision-making, including credit decisioning and pricing, remain largely local in order to better meet the needs of bank customers and further motivate the Banks’ commercial, business and retail bankers.

53

The Company and the Banks are supervised, examined and regulated by the Board of Governors of the Federal Reserve System (“FRB”). As Massachusetts-chartered banks, Brookline Bank and First Ipswich are also subject to regulation under the laws of the Commonwealth of Massachusetts and the jurisdiction of the Massachusetts Division of Banks. As a Rhode Island-chartered financial institution, BankRI is also subject to regulation under the laws of the State of Rhode Island and the jurisdiction of the Banking Division of the Rhode Island Department of Business Regulation. The Federal Deposit Insurance Corporation ("FDIC") continues to insure each of the Banks’ deposits up to $250,000 per depositor. Additionally, as a Massachusetts-chartered savings bank, Brookline Bank is also insured by the Depositors Insurance Fund (“DIF”), a private industry-sponsored company. The DIF insures savings bank deposits in excess of the FDIC insurance limits. As such, Brookline Bank offers 100% insurance on all deposits as a result of a combination of insurance from the FDIC and the DIF.

The Company’s common stock is traded on the Nasdaq Global Select Market^SM under the symbol “BRKL.”

54

Selected Financial Data

The following is based in part on, and should be read in conjunction with, the consolidated financial statements and accompanying notes, and other information appearing elsewhere in this Form 10-Q.

	At and for the Three Months Ended
	June 30,			March 31,			December 31,			September 30,			June 30,
	2015			2015			2014			2014			2014
	(Dollars in Thousands, Except Per Share Data)
PER COMMON SHARE DATA
Earnings per share — Basic*	$	0.17		$	0.17		$	0.16		$	0.17		$	0.15
Book value per share (end of period)*	9.33			9.30			9.16			9.05			8.99
Tangible book value per share (end of period) (1)*	7.19			7.15			7.00			6.87			6.80
Dividends paid per common share	0.090			0.085			0.085			0.085			0.085
Stock price (end of period)	11.29			10.05			10.03			8.55			9.37
PERFORMANCE RATIOS (2)
Net interest margin (taxable equivalent basis)	3.49		%	3.57		%	3.49		%	3.53		%	3.63		%
Return on average assets*	0.82		%	0.80		%	0.76		%	0.83		%	0.74		%
Return on average tangible assets (1)*	0.85		%	0.82		%	0.78		%	0.85		%	0.76		%
Return on average stockholders’ equity*	7.24		%	7.22		%	6.79		%	7.41		%	6.46		%
Return on average tangible stockholders' equity (1)*	9.40		%	9.41		%	8.90		%	9.77		%	8.56		%
Dividend payout ratio (1)*	53.32		%	51.05		%	54.93		%	50.89		%	58.87		%
Efficiency ratio (3)*	58.52		%	59.11		%	62.27		%	59.64		%	62.11		%
ASSET QUALITY RATIOS
Net loan and lease charge-offs as a percentage of average loans and leases (annualized)	0.04		%	0.07		%	0.07		%	0.07		%	0.06		%
Nonperforming loans and leases as a percentage of total loans and leases	0.50		%	0.49		%	0.28		%	0.37		%	0.37		%
Nonperforming assets as a percentage of total assets*	0.45		%	0.43		%	0.26		%	0.35		%	0.33		%
Total allowance for loan and lease losses as a percentage of total loans and leases	1.19		%	1.19		%	1.11		%	1.12		%	1.12		%
Allowance for loan and lease losses related to originated loans and leases as a percentage of originated loans and leases (1)	1.27		%	1.28		%	1.20		%	1.26		%	1.31		%
CAPITAL RATIOS
Stockholders’ equity to total assets*	11.30		%	11.32		%	11.06		%	11.08		%	11.25		%
Tangible equity ratio (1)*	8.94		%	8.93		%	8.68		%	8.64		%	8.75		%
FINANCIAL CONDITION DATA
Total assets*	$	5,782,934		$	5,755,146		$	5,800,948		$	5,718,944		$	5,588,306
Total loans and leases	4,729,581			4,634,594			4,822,607			4,736,028			4,603,913
Allowance for loan and lease losses	56,398			55,106			53,659			52,822			51,686
Goodwill and identified intangible assets	149,972			150,696			151,434			152,261			153,089
Total deposits	4,129,408			4,114,795			3,958,106			3,889,204			3,861,147
Total borrowed funds	937,648			924,925			1,126,404			1,132,865			1,041,004
Stockholders’ equity*	653,516			651,319			641,818			633,379			628,483
EARNINGS DATA
Net interest income	$	47,172		$	48,528		$	47,576		$	47,324		$	46,434
Provision for credit losses	1,913			2,263			1,724			2,034			2,276
Non-interest income*	4,867			4,470			4,541			6,189			3,822
Non-interest expense	30,452			31,326			32,455			31,914			31,215
Net income*	11,865			11,703			10,875			11,740			10,131

(1) Refer to Non-GAAP Financial Measures and Reconciliations to GAAP.

(2) All performance ratios are annualized and are based on average balance sheet amounts, where applicable.

(3) Efficiency ratio is calculated by dividing non-interest expense by the sum of non-interest income and net interest income.

(*) Previously reported amounts January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

55

Executive Overview

Growth

Total assets of $5.8 billion at June 30, 2015decreased$18.0 million, or 0.6% on an annualized basis, from December 31, 2014. The decrease was resulted from the sale of the indirect automobile portfolio during the first quarter of 2015.

The loan and lease portfolio decreased$93.0 million, or 3.9% on an annualized basis, to $4.7 billion at June 30, 2015 from $4.8 billion at December 31, 2014. The Company’s commercial loan portfolios, which are comprised of commercial real estate loans and commercial loans and leases, continued to exhibit growth. The Company’s commercial loan portfolios, which totaled $3.8 billion, or 80.3% of total loans and leases, at June 30, 2015, increased$160.6 million, or 8.8% on an annualized basis, from $3.6 billion, or 75.4% of total loans and leases, at December 31, 2014. Loan growth in the Company’s commercial loan portfolios was offset by the sale of over 90% of the indirect automobile portfolio during the first quarter of 2015.

Total deposits of $4.1 billion at June 30, 2015increased$171.3 million from December 31, 2014. Core deposits, defined as the sum of demand checking, NOW, money market, and savings accounts, increased at a 5.0% annualized rate during the first six months of 2015.

Asset Quality

The ratio of the allowance for loan and lease losses to total loans and leases was 1.19% at June 30, 2015, compared to 1.11% at December 31, 2014. The allowance for loan and lease losses related to originated loans and leases as a percentage of total originated loans and leases was 1.27% at June 30, 2015, compared to 1.20% at December 31, 2014. The Company continued to employ its historical underwriting methodology throughout the six-month period ended June 30, 2015.

Nonperforming assets at June 30, 2015 totaled $25.9 million, or 0.45% of total assets, as compared with $15.2 million, or 0.26% of total assets, at December 31, 2014. Net charge-offs for the three months ended June 30, 2015 were $0.5 million, or 0.04% of average loans and leases on an annualized basis, compared to $0.7 million, or 0.06% annualized, for the three months ended June 30, 2014.

Capital Strength

The Company is a "well-capitalized" bank holding company as defined in the Federal Reserve Board's Regulation Y. The Company's common equity tier 1 capital ratio was 10.75% at June 30, 2015. The Company’s Tier 1 leverage ratio was 9.36% at June 30, 2015, compared to 9.01% at December 31, 2014. Tier 1 risk-based ratio was 11.03% at June 30, 2015, compared to 10.55% at December 31, 2014. Total risk-based ratio was 13.78% at June 30, 2015, compared to 13.24% at December 31, 2014. The Company's ratio of stockholders’ equity to total assets was 11.30% and 11.06% at June 30, 2015 and December 31, 2014, respectively. The Company's tangible equity ratio was 8.94% and 8.68% at June 30, 2015 and December 31, 2014, respectively.

Net Income

For the three months ended June 30, 2015, the Company reported net income of $11.9 million, or $0.17 per basic and diluted share, up$1.8 million, or 17.1%, from $10.1 million, or $0.15 per basic share, for the three months ended June 30, 2014. This increase in net income is primarily the result of an increase in net interest income of $0.7 million, a decrease in the provision for credit losses of $0.4 million, an increase in non-interest income of $1.0 million, and a decrease in non-interest expense of $0.8 million, offset by an increase in provision for income taxes of $1.0 million. Refer to “Results of Operations" below for further discussion.

For the six months endedJune 30, 2015, the Company reported net income of $23.6 million, or $0.34 per basic and diluted share, up$2.9 million, or 14.0%, from $20.7 million, or $0.30 per basic share, for the six months endedJune 30, 2014. This increase in net income is primarily the result of an increase in net interest income of $1.5 million, a decrease in the provision for credit losses of $0.5 million, a decrease in non-interest expense of $3.0 million, offset by a decrease in non-interest income of $0.1 million and an increase in provision for income taxes of $1.7 million. Refer to “Results of Operations" below for further discussion.

The annualized return on average assets was 0.82% and 0.81% for the three and six months endedJune 30, 2015, respectively, compared to 0.74% and 0.76% for the three and six months endedJune 30, 2014, respectively. The annualized return on average stockholders’ equity was 7.24% and 7.23% for the three and six months endedJune 30, 2015, respectively, compared to 6.46% and 6.62% for the three and six months endedJune 30, 2014.

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Net interest margin was 3.49% for the three months ended June 30, 2015, compared to 3.63% for the three months ended June 30, 2014. The decrease in the net interest margin in a highly competitive and declining interest rate environment is, in part, a result of a decrease in the yield on interest-earning assets by 8 basis points to 4.07% for the three months ended June 30, 2015 from 4.15% for the three months ended June 30, 2014 and an increase of 5 basis points in the Company's overall cost of funds to 0.63% for the three months ended June 30, 2015 from 0.58% for the three months ended June 30, 2014.

Net interest margin was 3.53% for the six months endedJune 30, 2015, compared to 3.74% for the six months endedJune 30, 2014. The decrease in the net interest margin in a highly competitive and declining interest rate environment is, in part, a result of a decrease in the yield on interest-earning assets by 17 basis points to 4.09% for the six months endedJune 30, 2015 from 4.26% for the six months endedJune 30, 2014 and an increase of 4 basis points in the Company's overall cost of funds to 0.63% for the six months endedJune 30, 2015 from 0.59% for the three months ended June 30, 2014.

The decrease in the yield on interest-earning assets was largely due to continued rate pressures and the sale of the indirect automobile portfolio in the first quarter of 2015. Despite the strength of the Company's net interest margin, competitive pricing pressure in all loan categories and the continuation of a low interest-rate environment, along with the Company's diminishing ability to reduce its cost of funds, continues to place significant pressure on the Company's net interest margin and net interest income.

Critical Accounting Policies

The SEC defines “critical accounting policies” as those involving significant judgments and difficult or complex assumptions by management, often as a result of the need to make estimates about matters that are inherently uncertain or variable, which have, or could have, a material impact on the carrying value of certain assets or net income. The preparation of financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income and expenses, and disclosure of contingent assets and liabilities. Actual results could differ from those estimates. As discussed in the Company’s 2014 Annual Report on Form 10-K, management has identified the valuation of available-for-sale securities, accounting for assets and liabilities acquired, the determination of the allowance for loan and lease losses, the review of goodwill and intangibles for impairment, and income tax accounting as the Company’s most critical accounting policies.

Non-GAAP Financial Measures and Reconciliations to GAAP

In addition to evaluating the Company’s results of operations in accordance with GAAP, management periodically supplements this evaluation with an analysis of certain non-GAAP financial measures, such as the return on tangible assets or equity, the tangible equity ratio, tangible book value per share, dividend payout ratio and the ratio of the allowance for loan and lease losses related to originated loans and leases as a percentage of originated loans and leases. Management believes that these non-GAAP financial measures provide information useful to investors in understanding the Company’s underlying operating performance and trends, and facilitates comparisons with the performance assessment of financial performance, including non-interest expense control, while the tangible equity ratio and tangible book value per share are used to analyze the relative strength of the Company’s capital position.

57

The following table summarizes the Company’s return on average tangible assets and return on average tangible stockholders’ equity:

	Three Months Ended
	June 30, 2015			March 31, 2015			December 31, 2014			September 30, 2014			June 30, 2014
	(Dollars in Thousands)
Net income, as reported*	$	11,865		$	11,703		$	10,875		$	11,740		$	10,131
Average total assets*	$	5,762,620		$	5,852,114		$	5,757,715		5,654,792			5,460,004
Less: Average goodwill and average identified intangible assets, net	150,385			151,125			151,932			152,755			153,577
Average tangible assets*	$	5,612,235		$	5,700,989		$	5,605,783		$	5,502,037		$	5,306,427
Return on average tangible assets (annualized)*	0.85		%	0.82		%	0.78		%	0.85		%	0.76		%
Average total stockholders’ equity*	$	655,223		$	648,683		$	640,706		633,406			627,114
Less: Average goodwill and average identified intangible assets, net	150,385			151,125			151,932			152,755			153,577
Average tangible stockholders’ equity*	$	504,838		$	497,558		$	488,774		$	480,651		$	473,537
Return on average tangible stockholders’ equity (annualized)*	9.40		%	9.41		%	8.90		%	9.77		%	8.56		%
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

The following tables summarize the Company’s tangible equity ratio and tangible book value per share at the dates indicated:

	Three Months Ended
	June 30, 2015			March 31, 2015			December 31, 2014			September 30, 2014			June 30, 2014
	(Dollars in Thousands)
Total stockholders’ equity*	$	653,516		$	651,319		$	641,818		$	633,379		$	628,483
Less: Goodwill and identified intangible assets, net	149,972			150,696			151,434			152,261			153,089
Tangible stockholders’ equity*	$	503,544		$	500,623		$	490,384		$	481,118		$	475,394
Total assets*	$	5,782,934		$	5,755,146		$	5,800,948		$	5,718,944		$	5,588,306
Less: Goodwill and identified intangible assets, net	149,972			150,696			151,434			152,261			153,089
Tangible assets*	$	5,632,962		$	5,604,450		$	5,649,514		$	5,566,683		$	5,435,217
Tangible equity ratio*	8.94		%	8.93		%	8.68		%	8.64		%	8.75		%
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

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	Three Months Ended
	June 30, 2015		March 31, 2015		December 31, 2014		September 30, 2014		June 30, 2014
	(Dollars In Thousands, Except Share Data)
Tangible stockholders’ equity*	$	503,544	$	500,623	$	490,384	$	481,118	$	475,394
Common shares issued	75,744,445		75,744,445		75,744,445		75,744,445		75,744,445
Less: Common shares classified as treasury shares	5,048,525		5,042,238		5,040,571		5,035,956		5,144,807
Less: Unallocated ESOP shares	232,224		241,803		251,382		261,453		271,524
Less: Unvested restricted shares	406,566		418,035		419,702		427,952		434,459
Common shares outstanding	70,057,130		70,042,369		70,032,790		70,019,084		69,893,655
Tangible book value per share*	$	7.19	$	7.15	$	7.00	$	6.87	$	6.80
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

The following table summarizes the Company’s dividend payout ratio:

	Three Months Ended
	June 30, 2015			March 31, 2015			December 31, 2014			September 30, 2014			June 30, 2014
	(Dollars in Thousands)
Dividends paid	$	6,326		$	5,974		$	5,974		$	5,974		$	5,964
Net income, as reported*	$	11,865		$	11,703		$	10,875		$	11,740		$	10,131
Dividend payout ratio*	53.32		%	51.05		%	54.93		%	50.89		%	58.87		%
(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".

The following table summarizes the Company’s allowance for loan and lease losses related to originated loans and leases as a percentage of total originated loans and lease:

	Three Months Ended
	June 30, 2015			March 31, 2015			December 31, 2014			September 30, 2014			June 30, 2014
	(Dollars in Thousands)
Allowance for loan and lease losses	$	56,398		$	55,106		$	53,659		$	52,822		$	51,686
Less: Allowance for acquired loan and lease losses	2,655			2,911			2,848			1,933			1,247
Allowance for originated loan and lease losses	$	53,743		$	52,195		$	50,811		$	50,889		$	50,439
Total loans and leases	$	4,729,581		$	4,634,594		$	4,822,607		$	4,736,028		$	4,603,913
Less: Total acquired loans and leases	509,028			561,103			590,654			709,404			747,106
Total originated loans and leases	$	4,220,553		$	4,073,491		$	4,231,953		$	4,026,624		$	3,856,807
Allowance for loan and lease losses related to originated loans and leases as a percentage of originated loans and leases	1.27		%	1.28		%	1.20		%	1.26		%	1.31		%

59

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

At and for the Six Months Ended June 30, 2015 and 2014

Financial Condition

Loans and Leases

The following table summarizes the Company’s portfolio of loans and leases receivable at the dates indicated:

	At June 30, 2015					At December 31, 2014
	Balance			Percent of Total		Balance			Percent of Total
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,758,281		37.2	%	$	1,680,082		34.8	%
Multi-family mortgage	627,571			13.3	%	639,706			13.2	%
Construction	127,506			2.7	%	148,013			3.1	%
Total commercial real estate loans	2,513,358			53.1	%	2,467,801			51.1	%
Commercial loans and leases:
Commercial	578,548			12.2	%	514,077			10.7	%
Equipment financing	648,447			13.7	%	601,424			12.5	%
Condominium association	55,185			1.2	%	51,593			1.1	%
Total commercial loans and leases	1,282,180			27.1	%	1,167,094			24.3	%
Indirect automobile	19,377			0.4	%	316,987			6.6	%
Consumer loans:
Residential mortgage	603,073			12.8	%	571,920			11.9	%
Home equity	299,396			6.3	%	287,058			5.9	%
Other consumer	12,197			0.3	%	11,747			0.2	%
Total consumer loans	914,666			19.3	%	870,725			18.0	%
Total loans and leases	4,729,581			100.0	%	4,822,607			100.0	%
Allowance for loan and lease losses	(56,398		)			(53,659		)
Net loans and leases	$	4,673,183				$	4,768,948

The following table sets forth the growth (decline) in the Company’s loan and lease portfolios during the six months endedJune 30, 2015:

	At June 30, 2015		At December 31, 2014		Dollar Change			Percent Change (Annualized)
	(Dollars in Thousands)
Commercial real estate	$	2,513,358	$	2,467,801	$	45,557		3.7	%
Commercial	1,282,180		1,167,094		115,086			19.7	%
Indirect automobile	19,377		316,987		(297,610		)	N/A
Consumer	914,666		870,725		43,941			10.1	%
Total loans and leases	$	4,729,581	$	4,822,607	$	(93,026	)	-3.9	%

N/A - annualized percent change not meaningful

The Company’s loan portfolio consists primarily of first mortgage loans secured by commercial, multi-family and residential real estate properties located in the Company’s primary lending area, loans to business entities, including commercial lines of credit, loans to condominium associations and loans and leases used to finance equipment used by small businesses. The Company also provides financing for construction and development projects, home equity and other consumer loans.

The Company employs seasoned commercial lenders and retail bankers who rely on community and business contacts as well as referrals from customers, attorneys and other professionals to generate loans and deposits. Existing borrowers are also

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an important source of business since many of them have more than one loan outstanding with the Company. The Company’s ability to originate loans depends on the strength of the economy, trends in interest rates, and levels of customer demand and market competition.

Commercial Real Estate Loans

The commercial real estate portfolio is composed of commercial real estate mortgage loans, multi-family mortgage loans, and construction loans and is the largest component of the Company’s overall loan portfolio, representing 53.1% of total loans and leases outstanding at June 30, 2015. For the commercial real estate portfolio, the Company focuses on making loans in the $3 million to $10 million range.

Typically, commercial real estate loans are larger in size and involve a greater degree of risk than owner-occupied residential mortgage loans. Loan repayment is usually dependent on the successful operation and management of the properties and the value of the properties securing the loans. Economic conditions can greatly affect cash flows and property values.

A number of factors are considered in originating commercial real estate and multi-family mortgage loans. The qualifications and financial condition of the borrower (including credit history), as well as the potential income generation and the value and condition of the underlying property, are evaluated. When evaluating the qualifications of the borrower, the Company considers the financial resources of the borrower, the borrower’s experience in owning or managing similar property and the borrower’s payment history with the Company and other financial institutions. Factors considered in evaluating the underlying property include the net operating income of the mortgaged premises before debt service and depreciation, the debt service coverage ratio (the ratio of cash flow before debt service to debt service), the use of conservative capitalization rates, and the ratio of the loan amount to the appraised value. Generally, personal guarantees are obtained from commercial real estate loan borrowers.

Commercial real estate and multi-family mortgage loans are typically originated for terms of five years with amortization periods of 20 to 30 years. Many of the loans are priced at inception on a fixed-rate basis generally for periods ranging from two to five years with repricing periods for longer-term loans. When possible, prepayment penalties are included in loan covenants on these loans. For commercial customers who are interested in loans with terms longer than five years, the Company offers interest rate swaps to accommodate customer need.

The Company's urban and suburban market area is characterized by a large number of apartment buildings, condominiums and office buildings. As a result, multi-family and commercial real estate mortgage lending has been a significant part of the Company's activities for many years. These types of loans typically generate higher yields, but also involve greater credit risk. Many of the Company's borrowers have more than one multi-family or commercial real estate loan outstanding with the Company.

The commercial real estate portfolio was composed primarily of loans secured by apartment buildings ($648.2 million), office buildings ($612.2 million), retail stores ($488.5 million), industrial properties ($277.0 million) and mixed-use properties ($188.1 million) at June 30, 2015. At that date, over 98% of the commercial real estate loans outstanding were secured by properties located in New England.

Construction and development financing is generally considered to involve a higher degree of risk than long-term financing on improved, occupied real estate and thus has higher concentration limits than do other commercial credit classes. Risk of loss on a construction loan is largely dependent upon the accuracy of the initial estimate of construction costs, the estimated time to sell or rent the completed property at an adequate price or rate of occupancy, and market conditions. If the estimates and projections prove to be inaccurate, the Company may be confronted with a project which, upon completion, has a value that is insufficient to assure full loan repayment.

Criteria applied in underwriting construction loans for which the primary source of repayment is the sale of the property are different from the criteria applied in underwriting construction loans for which the primary source of repayment is the stabilized cash flow from the completed project. For those loans where the primary source of repayment is from resale of the property, in addition to the normal credit analysis performed for other loans, the Company also analyzes project costs, the attractiveness of the property in relation to the market in which it is located and demand within the market area. For those construction loans where the source of repayment is the stabilized cash flow from the completed project, the Company analyzes not only project costs but also how long it might take to achieve satisfactory occupancy and the reasonableness of projected rental rates in relation to market rental rates.

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Commercial Loans and Leases

The commercial loan and lease portfolio is composed of commercial loans, equipment financing loans and leases and condominium association loans and represented 27.1% of total loans outstanding at June 30, 2015. The Company focuses on making commercial loans in the $1 million to $10 million range.

The Company provides commercial banking services to companies in its market area. Approximately 52% of the commercial loans outstanding at June 30, 2015 were made to borrowers located in New England. Approximately 17% of the outstanding balances were made to borrowers in New York and New Jersey by the Company's equipment financing divisions. The remaining 31% of the commercial loans outstanding were made to borrowers in other areas in the United States of America. Product offerings include lines of credit, term loans, letters of credit, deposit services and cash management. These types of credit facilities have as their primary source of repayment cash flows from the operations of a business. Interest rates offered are available on a floating basis tied to the prime rate or a similar index or on a fixed-rate basis referenced on the Federal Home Loan Bank of Boston (“FHLBB”) index.

Credit extensions are made to established businesses on the basis of loan purpose and assessment of capacity to repay as determined by an analysis of their financial statements, the nature of collateral to secure the credit extension and, in most instances, the personal guarantee of the owner of the business as well as industry and general economic conditions. The Company also participates in U.S. Government programs such as the Small Business Administration (“SBA”) in both the 7A program and as an SBA preferred lender.

The Company’s equipment financing divisions focus on market niches in which its lenders have deep experience and industry contacts, and on making loans to customers with business experience. An important part of the Company’s equipment financing loan origination volume comes from equipment manufacturers and existing customers as they expand their operations. The equipment financing portfolio is composed primarily of loans to finance laundry, tow trucks, fitness, dry

cleaning and convenience store equipment. The borrowers are located primarily in the greater New York/New Jersey metropolitan area, although the customer base extends to locations throughout the United States. Typically, the loans are priced at a fixed rate of interest and require monthly payments over their three- to seven-year life. The yields earned on equipment financing loans are higher than those earned on the commercial loans made by the Banks because they involve a higher degree of credit risk. Equipment financing customers are typically small-business owners who operate with limited financial resources and who face greater risks when the economy weakens or unforeseen adverse events arise. Because of these characteristics, personal guarantees of borrowers are usually obtained along with liens on available assets. The Company focuses on making equipment financing loans and leases in the $100,000 to $500,000 range. The size of loan is determined by an analysis of cash flow and other characteristics pertaining to the business and the equipment to be financed, based on detailed revenue and profitability data of similar operations.

Loans to condominium associations are for the purpose of funding capital improvements, are made for five- to ten-year terms and are secured by a general assignment of condominium association revenues. Among the factors considered in the underwriting of such loans are the level of owner occupancy, the financial condition and history of the condominium association, the attractiveness of the property in relation to the market in which it is located and the reasonableness of estimates of the cost of capital improvements to be made. Depending on loan size, funds are advanced as capital improvements are made and, in more complex situations, after completion of engineering inspections.

Indirect Automobile Loans

The indirect automobile loan portfolio represented 0.4% of total loans outstanding at June 30, 2015. Loans outstanding in the portfolio totaled $19.4 million at June 30, 2015, down from $317.0 million at December 31, 2014. In December 2014, the Company ceased the origination of indirect automobile loans. In March 2015, the Company sold $255.2 million of the indirect automobile loan portfolio. As of June 30, 2015, the Company continues to service the remaining portfolio.

Consumer Loans

The consumer loan portfolio is composed of residential mortgage loans, home equity loans and lines of credit and other consumer loans and represented 19.3% of total loans outstanding at June 30, 2015. The Company focuses its mortgage loans on existing and new customers within its branch networks in its urban and suburban marketplaces in the greater Boston and Providence metropolitan areas.

The Company originates adjustable- and fixed-rate residential mortgage loans secured by one- to four-family residences. Each residential mortgage loan granted is subject to a satisfactorily completed application, employment verification, credit

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history and a demonstrated ability to repay the debt. Generally, loans are not made when the loan-to-value ratio exceeds 80% unless private mortgage insurance is obtained and/or there is a financially strong guarantor. Appraisals are performed by outside independent fee appraisers.

In general, the Company maintains three-, five- and seven-year adjustable-rate mortgage loans and ten-year fixed-rate fully amortizing mortgage loans in its portfolio. Fixed-rate mortgage loans with maturities beyond ten years, such as 15- and 30-year fixed-rate mortgages, are not generally maintained in the Company’s portfolio but are, rather, sold into the secondary market on a servicing-released basis. At June 30, 2015, the Banks acted as correspondent banks in these secondary-market transactions. Loan sales in the secondary market provide funds for additional lending and other banking activities.

Underwriting guidelines for home equity loans and lines of credit are similar to those for residential mortgage loans. Home equity loans and lines of credit are limited to no more than 80% of the appraised value of the property securing the loan including the amount of any existing first mortgage liens.

Other consumer loans have historically been a modest part of the Company’s loan originations. At June 30, 2015, originated other consumer loans equaled $12.1 million, or 0.3% of total originated loans outstanding, at that date. Consumer equity and debt securities were pledged as collateral for a substantial part of these loans.

Asset Quality

Criticized and Classified Assets

The Company’s management negatively rates certain loans and leases as “other asset especially mentioned ("OAEM"),” “substandard” or “doubtful” based on criteria established under banking regulations. These loans and leases are collectively referred to as “criticized” assets. Loans and leases rated OAEM have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects of the loan or lease at some future date. Loans and leases rated as substandard are inadequately protected by the payment capacity of the obligor or of the collateral pledged, if any. Substandard loans and leases have a well-defined weakness or weaknesses that jeopardize the liquidation of debt and are characterized by the distinct possibility that the Company will sustain some loss if existing deficiencies are not corrected. At June 30, 2015, the Company had $60.7 million of total assets, including acquired assets, that were designated as criticized. This compares to $71.4 million of assets that were designated as criticized at December 31, 2014. See Note 5, “Allowance for Loan and Lease Losses,” to the unaudited consolidated financial statements for more information on the Company’s risk-rating system.

Nonperforming Assets

“Nonperforming assets” consist of nonperforming loans and leases, other real estate owned (“OREO”) and other repossessed assets. Under certain circumstances, the Company may restructure the terms of a loan or lease as a concession to a borrower, except for acquired loans and leases which are individually evaluated against expected performance on the date of acquisition. These restructured loans and leases are generally considered “nonperforming loans and leases” until a history of collection of at least six months on the restructured terms of the loan or lease has been established. OREO consists of real estate acquired through foreclosure proceedings and real estate acquired through acceptance of a deed in lieu of foreclosure. Other repossessed assets consist of assets that have been acquired through foreclosure that are not real estate and are included in other assets on the Company’s unaudited consolidated balance sheets.

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The following table sets forth information regarding nonperforming assets at the dates indicated:

	At June 30, 2015			At December 31, 2014
	(Dollars in Thousands)
Nonaccrual loans and leases:
Commercial real estate mortgage	$	3,174		$	1,009
Multi-family mortgage	309			—
Commercial	12,316			5,196
Equipment financing	2,639			3,223
Indirect automobile	417			645
Residential mortgage	2,421			1,682
Home equity	2,144			1,918
Other consumer	42			41
Total nonaccrual loans and leases	23,462			13,714
OREO	1,676			953
Other repossessed assets	736			503
Total nonperforming assets	$	25,874		$	15,170
Loans and leases past due greater than 90 days and still accruing	$	10,220		$	6,008
Total nonperforming loans and leases as a percentage of total loans and leases	0.50		%	0.28		%
Total nonperforming assets as a percentage of total assets	0.45		%	0.26		%

Total nonperforming assets, which are composed of nonaccrual loans and leases, OREO and other repossessed assets, increased $10.7 million from $15.2 million at December 31, 2014 to $25.9 million at June 30, 2015. The increase was primarily due to one commercial relationship which was downgraded during the first quarter of 2015, which had an outstanding loan amount of $8.4 million.

Troubled Debt Restructured Loans and Leases

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Troubled debt restructurings:
On accrual	$	14,205	$	14,815
On nonaccrual	5,981		5,625
Total troubled debt restructurings	$	20,186	$	20,440

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Changes in troubled debt restructured loans and leases were as follows for the periods indicated:

	Three months ended June 30,						Six months ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Balance at beginning of period	$	20,310		$	18,296		$	20,440		$	18,348
Additions	632			1,206			3,465			2,086
Net charge-offs (recoveries)	31			(50		)	3			(130		)
Repayments	(787		)	(1,064		)	(3,722		)	(1,721		)
Other reductions (1)	—			—			—			(195		)
Balance at end of period	$	20,186		$	18,388		$	20,186		$	18,388

⁽¹⁾ Other reductions include transfers to OREO and changes in troubled debt restructuring status.

Allowance for Loan and Lease Losses

The allowance for loan and lease losses consists of general, specific and unallocated allowances and reflects management’s estimate of probable loan and lease losses inherent in the loan portfolio at the balance sheet date. Management uses a consistent and systematic process and methodology to evaluate the adequacy of the allowance for loan and lease losses on a quarterly basis. The allowance is calculated by loan type: commercial real estate loans, commercial loans and leases, indirect automobile loans and consumer loans, each category of which is further segregated. A formula-based credit evaluation approach is applied to each group that is evaluated collectively, primarily by loss factors, which includes estimates of incurred losses over an estimated loss emergence period ("LEP"), assigned to each risk rating by type, coupled with an analysis of certain loans individually evaluated for impairment. Management continuously evaluates and challenges inputs and assumptions in the allowance for loan and lease loss. During the three months ended March 31, 2015, management changed the reserve factor for the indirect automobile loans based on a review of the credit metrics of the remaining portfolio.

The process to determine the allowance for loan and lease losses requires management to exercise considerable judgment regarding the risk characteristics of the loan portfolios and the effect of relevant internal and external factors. While management evaluates currently available information in establishing the allowance for loan and lease losses, future adjustments to the allowance for loan and lease losses may be necessary if conditions differ substantially from the assumptions used in making the evaluations. Management performs a comprehensive review of the allowance for loan and lease losses on a quarterly basis. In addition, various regulatory agencies, as an integral part of their examination process, periodically review a financial institution’s allowance for loan and lease losses and carrying amounts of other real estate owned. Such agencies may require the financial institution to recognize additions to the allowance based on their judgments about information available to them at the time of their examination. See Note 5, “Allowance for Loan and Lease Losses,” to the unaudited consolidated financial statements for descriptions of how management determines the balance of the allowance for loan and lease losses for each portfolio and class of loans.

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The following tables present the changes in the allowance for loan and lease losses by portfolio segment for the three and six months endedJune 30, 2015 and 2014.

	At and for the Three Months Ended June 30, 2015
	Commercial  Real Estate			Commercial			Indirect  Automobile			Consumer			Unallocated		Total
	(Dollars in Thousands)
Balance at March 31, 2015	$	29,460		$	19,084		$	458		$	3,619		$	2,485	$	55,106
Charge-offs	(162		)	(245		)	(397		)	(225		)	—		(1,029		)
Recoveries	—			94			410			24			—		528
(Credit) provision for loan and lease losses	(82		)	1,296			(90		)	594			75		1,793
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398
Total loans and leases	$	2,513,358		$	1,282,180		$	19,377		$	914,666		N/A		$	4,729,581
Allowance for loan and lease losses as a percentage of total loans and leases	1.16		%	1.58		%	1.97		%	0.44		%	N/A		1.19		%

	At and for the Three Months Ended June 30, 2014
	Commercial Real Estate			Commercial			Indirect  Automobile			Consumer			Unallocated			Total
	(Dollars in Thousands)
Balance at March 31, 2014	$	24,858		$	15,544		$	3,664		$	3,110		$	3,048		$	50,224
Charge-offs	—			(796		)	(228		)	(172		)	—			(1,196		)
Recoveries	—			218			173			85			—			476
Provision (credit) for loan and lease losses	1,857			900			77			(6		)	(646		)	2,182
Balance at June 30, 2014	$	26,715		$	15,866		$	3,686		$	3,017		$	2,402		$	51,686
Total loans and leases	$	2,314,585		$	1,076,953		$	376,314		$	836,061		N/A			$	4,603,913
Allowance for loan and lease losses as a percentage of total loans and leases	1.15		%	1.47		%	0.98		%	0.36		%	N/A			1.12		%

	At and for the Six Months Ended June 30, 2015
	Commercial  Real Estate			Commercial			Indirect  Automobile			Consumer			Unallocated		Total
	(Dollars in Thousands)
Balance at December 31, 2014	$	29,594		$	15,957		$	2,331		$	3,359		$	2,418	$	53,659
Charge-offs	(550		)	(695		)	(1,217		)	(232		)	—		(2,694		)
Recoveries	—			306			991			42			—		1,339
Provision (credit) for loan and lease losses	172			4,661			(1,724		)	843			142		4,094
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398
Total loans and leases	$	2,513,358		$	1,282,180		$	19,377		$	914,666		N/A		$	4,729,581
Allowance for loan and lease losses as a percentage of total loans and leases	1.16		%	1.58		%	1.97		%	0.44		%	N/A		1.19		%

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	At and for the Six Months Ended June 30, 2014
	Commercial  Real Estate			Commercial			Indirect  Automobile			Consumer			Unallocated			Total
	(Dollars in Thousands)
Balance at December 31, 2013	$	23,022		$	15,220		$	3,924		$	3,375		$	2,932		$	48,473
Charge-offs	—			(1,347		)	(517		)	(382		)	—			(2,246		)
Recoveries	—			469			277			114			—			860
Provision (credit) for loan and lease losses	3,693			1,524			2			(90		)	(530		)	4,599
Balance at June 30, 2014	$	26,715		$	15,866		$	3,686		$	3,017		$	2,402		$	51,686
Total loans and leases	$	2,314,585		$	1,076,953		$	376,314		$	836,061		N/A			$	4,603,913
Allowance for loan and lease losses as a percentage of total loans and leases	1.15		%	1.47		%	0.98		%	0.36		%	N/A			1.12		%

The allowance for loan and lease losses was $56.4 million at June 30, 2015, or 1.19% of total loans and leases outstanding. This compared to an allowance for loan and lease losses of $53.7 million, or 1.11% of total loans and leases outstanding, at December 31, 2014. The increase in the allowance for loan and lease losses and in the allowance for loan and lease losses as a percentage of total loans and leases from December 31, 2014 to June 30, 2015 was due to a specific reserve recorded for a commercial relationship which was downgraded during the first quarter and additional reserves recorded for continued loan growth, partially offset by release of reserves related to the sale of the indirect automobile portfolio during the first quarter.

Commercial Real Estate Loans

The allowance for commercial real estate loan losses was $29.2 million at June 30, 2015, or 1.16% of total commercial real estate loans outstanding. This compared to an allowance for commercial real estate loan losses of $29.6 million, or 1.20% of total commercial real estate loans outstanding, at December 31, 2014. Specific reserves on commercial real estate loans were $0.1 million at June 30, 2015 and December 31, 2014. Despite loan growth of $45.6 million, or 3.7% on an annualized basis, from December 31, 2014, the $0.4 million decrease in the allowance for commercial real estate loan losses during the first six months of 2015 was primarily driven by improved credit quality of the commercial real estate loans.

The ratio of total criticized and classified commercial real estate loans to total commercial real estate loans decreased to 1.35% at June 30, 2015 from 1.81% at December 31, 2014. The ratio of originated commercial real estate loans on nonaccrual to total originated commercial real estate loans increased to 0.16% at June 30, 2015 from 0.05% at December 31, 2014.

Net charge-offs in the commercial real estate loan portfolio for the three months ended June 30, 2015 were $0.2 million. As a percentage of average commercial real estate loan portfolios, annualized net charge-offs for the three months ended June 30, 2015 was 0.03%. Net charge-offs for the three months ended June 30, 2014 were nominal.

Net charge-offs in the commercial real estate loan portfolio for the six months ended June 30, 2015 were $0.6 million. As a percentage of average commercial loans and leases, annualized net charge-offs for the six months ended June 30, 2015 was 0.04%. Net charge-offs for the six months ended June 30, 2014 were nominal.

Commercial Loans and Leases

The allowance for commercial loan and lease losses was $20.2 million, or 1.58% of total commercial loans and leases outstanding, at June 30, 2015, compared to $16.0 million, or 1.37%, at December 31, 2014.  Specific reserves on commercial loans and leases increased from $1.0 million at December 31, 2014 to $2.6 million at June 30, 2015. The $4.2 million increase in the allowance for commercial loan and lease losses during the first six months of 2015 was primarily driven by loan growth of $115.1 million, or 19.7% on an annualized basis, from December 31, 2014 and deterioration of one relationship in the commercial loans and leases portfolio during the first quarter of 2015.

The ratio of total criticized and classified commercial loans and leases to total commercial loans and leases was 2.08% at June 30, 2015 as compared to 2.28% at December 31, 2014. The ratio of originated commercial loans and leases on nonaccrual to total originated commercial loans and leases increased to 0.94% at June 30, 2015 from 0.54% at December 31, 2014.

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Net charge-offs in the commercial loan and lease portfolio for the three months ended June 30, 2015 and June 30, 2014 were $0.2 million and $0.6 million, respectively. As a percentage of average commercial loans and leases, annualized net charge-offs for the three months ended June 30, 2015 and June 30, 2014 were 0.05% and 0.22%, respectively.

Net charge-offs in the commercial loan and lease portfolio for the six months ended June 30, 2015 and June 30, 2014 were $0.4 million and $0.9 million, respectively. As a percentage of average commercial loans and leases, annualized net charge-offs for the six months ended June 30, 2015 and June 30, 2014 were 0.06% and 0.17%, respectively.

Indirect Automobile Loans

The allowance for indirect automobile loan losses was $0.4 million, or 1.97% of total indirect automobile loans outstanding, at June 30, 2015, compared to $2.3 million, or 0.74% of the indirect automobile portfolio outstanding, at December 31, 2014.  The $1.9 million decrease in the allowance for indirect automobile loan losses was primarily a result of the sale of the indirect automobile portfolio in the first quarter of 2015. Loans outstanding decreased $297.6 million from $317.0 million at December 31, 2014 to $19.4 million at June 30, 2015. Based on a review of the credit metrics of the remaining indirect automobile portfolio, and a change in the reserve factor, the allowance ratio increased for the remaining portfolio. There were no loans individually evaluated for impairment in the indirect automobile portfolio at June 30, 2015 and December 31, 2014.

The ratio of indirect automobile loans with borrower credit scores below 660 to the total indirect automobile portfolio increased to 45.2% at June 30, 2015 from 3.1% at December 31, 2014. The ratio of indirect automobile loans on nonaccrual to total indirect automobile loans increased to 2.15% at June 30, 2015 compared to 0.2% at December 31, 2014.

Net recoveries in the indirect automobile portfolio for the three months ended June 30, 2015 was $13 thousand. This compared to net charge-offs of $0.1 million for the three months ended June 30, 2014. As a percentage of average loans and leases, annualized net recoveries for the three months ended June 30, 2015 was 0.25%. This compared to annualized net charge-offs of 0.06% for the three months ended June 30, 2014.

Net charge-offs in the indirect automobile portfolio for the six months ended June 30, 2015 and 2014 were $0.2 million and $0.2 million, respectively. As a percentage of average loans and leases, annualized net charge-offs for the six months ended June 30, 2015 and June 30, 2014 were 0.30% and 0.13%, respectively.

Consumer Loans

The allowance for consumer loan losses, including residential loans and home equity loans and lines of credit, was $4.0 million, or 0.44% of total consumer loans and leases outstanding, at June 30, 2015, compared to $3.4 million, or 0.39%, at December 31, 2014. There was a nominal reserve for consumer loans individually evaluated for impairment at June 30, 2015 and December 31, 2014. The $0.6 million increase in the allowance for consumer loans during the first six months of 2015 was primarily driven by loan growth of $43.9 million, or 10.1%, on an annualized basis, from December 31, 2014. The ratio of originated consumer loans on nonaccrual to total originated consumer loans increased to 0.34% at June 30, 2015 from 0.23% at December 31, 2014.  The risk of loss on a home equity loan is higher since the property securing the loan has often been previously pledged as collateral for a first mortgage loan. The Company gathers and analyzes delinquency data, to the extent that data are available on these first liens, for purposes of assessing the collectability of the second liens held for the Company even if these home equity loans are not delinquent. This data is further analyzed for performance differences between amortizing and non-amortizing home equity loans, the percentage borrowed to total loan commitment, and by the amount of payments made by the borrowers. The loss exposure is not considered to be high due to the combination of current property values, the historically low loan-to-value ratios, the low level of losses experienced in the past few years, and the low level of loan delinquencies at June 30, 2015. If the local economy weakens, a rise in losses in those loan classes could occur. Historically, losses in these classes have been low.

Net charge-offs in the consumer portfolio for the three months ended June 30, 2015 and 2014 were $0.2 million and $0.3 million, respectively. As a percentage of average consumer loans and leases, annualized net charge-offs for the three months ended June 30, 2015 and June 30, 2014 were 0.09% and 0.04%, respectively.

Net charge-offs in the consumer portfolio for the six months ended June 30, 2015 and June 30, 2014 were $0.2 million and $0.3 million, respectively. As a percentage of average consumer loans and leases, annualized net charge-offs for the six months ended June 30, 2015 and June 30, 2014 were 0.04% and 0.07%, respectively.

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Unallocated Allowance

The unallocated allowance recognizes the estimation risk associated with the allocated general and specific allowances, incorporates management’s evaluation of existing conditions that are not included in the allocated allowance determinations and protects against potential losses outside of the ordinary course of business. These conditions are reviewed quarterly by management. Causes of losses outside the normal course of business include, but are not limited to, fraudulently obtained loans where there is no primary or secondary source of repayment; catastrophic and uninsured property loss where collateral is destroyed with no compensation; and legal documentation flaws that compromise security interests in collateral assets or the availability of guarantors. Management reviews these conditions and adjusted the factors due to the absence of losses outside the normal course of business and improved credit quality.

The unallocated allowance for loan and lease losses was $2.6 million at June 30, 2015, compared to $2.4 million at December 31, 2014.

The following table sets forth the Company’s percent of allowance for loan and lease losses to the total allowance for loan and lease losses and the percent of loans to total loans for each of the categories listed at the dates indicated.

	At June 30, 2015						At December 31, 2014
	Amount		Percent of  Allowance to  Total Allowance		Percentof  Loans to  Total Loans		Amount		Percent of  Allowance to  Total Allowance		Percentof  Loans to  Total Loans
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	20,909	37.0	%	37.2	%	$	20,858	38.9	%	34.8	%
Multi-family	5,097		9.0	%	13.3	%	5,057		9.4	%	13.2	%
Construction	3,210		5.7	%	2.7	%	3,679		6.9	%	3.1	%
Total commercial real estate loans	29,216		51.7	%	53.1	%	29,594		55.2	%	51.1	%
Commercial loans and leases:
Commercial	11,141		19.8	%	12.2	%	7,463		13.9	%	10.7	%
Equipment financing	8,678		15.4	%	13.7	%	8,112		15.1	%	12.5	%
Condominium association	410		0.7	%	1.2	%	382		0.7	%	1.1	%
Total commercial loans and leases	20,229		35.9	%	27.1	%	15,957		29.7	%	24.3	%
Indirect automobile	381		0.7	%	0.4	%	2,331		4.3	%	6.6	%
Consumer loans:
Residential mortgage	1,730		3.1	%	12.8	%	1,392		2.6	%	11.9	%
Home equity	2,137		3.8	%	6.3	%	1,846		3.5	%	5.9	%
Other consumer	145		0.3	%	0.3	%	121		0.2	%	0.2	%
Total consumer loans	4,012		7.2	%	19.3	%	3,359		6.3	%	18.0	%
Unallocated	2,560		4.5	%	0.0	%	2,418		4.5	%	0.0	%
Total	$	56,398	100.0	%	100.0	%	$	53,659	100.0	%	100.0	%

Investments

The investment portfolio exists primarily for liquidity purposes, and secondarily as sources of interest and dividend income, interest-rate risk management and tax planning as a counterbalance to loan and deposit flows. Investment securities are utilized as part of the Company’s asset/liability management and may be sold in response to, or in anticipation of, factors such as changes in market conditions and interest rates, security prepayment rates, deposit outflows, liquidity concentrations and regulatory capital requirements.

The investment policy of the Company, which is reviewed and approved by the Board of Directors on an annual basis, specifies the types of investments that are acceptable, required investment ratings by at least one nationally recognized rating agency, concentration limits and duration guidelines. Compliance with the investment policy is monitored on a regular basis. In

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general, the Company seeks to maintain a high degree of liquidity and targets cash, cash equivalents and investment securities available-for-sale balances between 10% and 30% of total assets.

Cash, cash equivalents, and investment securities increased approximately $68.9 million, or 22.4% on an annualized basis, to $682.9 million at June 30, 2015 from $614.0 million at December 31, 2014. The increase was primarily driven by the sale of the indirect automobile portfolio, offset by growth in the loans and leases portfolio, security portfolio and the maturity of FHLBB advances. Cash, cash equivalents, and investment securities were 11.8% of total assets at June 30, 2015, compared to 10.6% of total assets at December 31, 2014.

The following table sets forth certain information regarding the amortized cost and market value of the Company’s investment securities at the dates indicated:

	At June 30, 2015				At December 31, 2014
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	18,519	$	18,550	$	22,929	$	22,988
GSE CMOs	218,039		214,397		238,910		234,169
GSE MBSs	254,410		254,802		249,329		250,981
SBA commercial loan asset-backed securities	180		179		205		203
Corporate debt obligations	39,852		40,254		39,805		40,207
Trust preferred securities	1,465		1,321		1,463		1,240
Total debt securities	532,465		529,503		552,641		549,788
Marketable equity securities	951		973		947		973
Total investment securities available-for-sale	$	533,416	$	530,476	$	553,588	$	550,761
Investment securities held-to-maturity:
GSEs	$	26,925	$	26,728	$	—	$	—
GSE MBSs	20,993		20,775		—		—
Municipal Obligations	12,093		11,990		—		—
Foreign Government Obligations	500		500		500		500
Total investment securities held-to-maturity	$	60,511	$	59,993	$	500	$	500

The fair value of investment securities is based principally on market prices and dealer quotes received from third-party, nationally-recognized pricing services for identical investment securities such as U.S. Treasury and agency securities. The Company's marketable equity securities are priced this way and are included in Level 1. These prices are validated by comparing the primary pricing source with an alternative pricing source when available. When quoted market prices for identical securities are unavailable, the Company uses market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include certain U.S. and government agency debt securities, GSE residential MBSs and CMOs, corporate debt securities, SBA commercial loan asset-backed securities, and trust preferred securities, all of which are included in Level 2.

Additionally, Management reviews changes in fair value from period to period and performs testing to ensure that prices received from the third parties are consistent with their expectation of the market. Changes in the prices obtained from the pricing service are analyzed from month to month, taking into consideration changes in market conditions including changes in mortgage spreads, changes in U.S. Treasury security yields and changes in generic pricing of 15-year and 30-year securities. Additional analysis may include a review of prices provided by other independent parties, a yield analysis, a review of average life changes using Bloomberg analytics and a review of historical pricing for the particular security.

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Maturities, calls and principal repayments totaled $51.1 million for the six months endedJune 30, 2015 compared to $34.6 million for the same period in 2014. During the six months endedJune 30, 2015, the Company purchased $31.5 million of investment securities available-for-sale and $60.3 million investment securities held-to-maturity. This compared to $69.1 million of investment securities available-for-sale and $0.5 million of investment securities held-to-maturity for the same period in 2014. During the six months endedJune 30, 2015 the Company did not sell any investment securities available-for-sale or held-to-maturity. During the six months endedJune 30, 2014, the Company sold $5.1 million of available-for-sale securities and no held-to-maturity securities.

At June 30, 2015, the fair value of all investment securities available-for-sale was $530.5 million, with net unrealized losses of $2.9 million, compared to a fair value of $550.8 million and net unrealized losses of $2.8 million at December 31, 2014. At June 30, 2015, $340.1 million, or 64.1% of the portfolio, had gross unrealized losses of $5.4 million. This compares to $335.7 million, or 60.9% of the portfolio, with gross unrealized losses of $6.0 million at December 31, 2014.

Management believes that these negative differences between amortized cost and fair value do not include credit losses, but rather differences in interest rates between the time of purchase and the time of measurement. It is more likely than not that the Company will not sell the investment securities before recovery, and, as a result, it will recover the amortized cost basis of the investment securities. As such, management has determined that these investment securities are not other-than-temporarily impaired at June 30, 2015. If market conditions for investment securities worsen or the creditworthiness of the underlying issuers deteriorates, it is possible that the Company may recognize additional other-than-temporary impairments in future periods. For additional discussion on how the Company validates fair values provided by the third-party pricing service, see Note 13, “Fair Value of Financial Instruments.”

Restricted Equity Securities

Federal Reserve Bank Stock

The Company invests in the stock of the Federal Reserve Bank of Boston, as required by the Banks’ membership in the FRB. At June 30, 2015 the Company owned stock in the Federal Reserve Bank of Boston with a carrying value of $16.8 million compared to $16.0 million at December 31, 2014.

FHLBB Stock

The Company invests in the stock of the FHLBB as one of the requirements to borrow. At June 30, 2015, the Company maintains an excess balance of capital stock of $15.3 million compared to $7.8 million at December 31, 2014, which allows for additional borrowing capacity at each Bank. At June 30, 2015 and December 31, 2014, the Company owned stock in the FHLBB with a carrying value of $58.3 million. The FHLBB stated that it remained in compliance with all regulatory capital ratios at June 30, 2015 and, based on the most recent information available, was classified as “adequately capitalized” by its regulator.

Deposits

The following table presents the Company’s deposit mix at the dates indicated.

	At June 30, 2015						At December 31, 2014
	Amount		Percent of Total		Weighted Average Rate		Amount		Percent of Total		Weighted Average Rate
	(Dollars in Thousands)
Non-interest-bearing accounts	$	783,331	19.0	%	0.00	%	$	726,118	18.3	%	0.00	%
NOW accounts	247,172		6.0	%	0.07	%	235,063		6.0	%	0.07	%
Savings accounts	532,184		12.8	%	0.20	%	531,727		13.4	%	0.21	%
Money market accounts	1,523,798		36.9	%	0.43	%	1,518,490		38.4	%	0.52	%
Certificate of deposit accounts	1,042,923		25.3	%	0.89	%	946,708		23.9	%	0.88	%
Total interest-bearing deposits	3,346,077		81.0	%	0.51	%	3,231,988		81.7	%	0.54	%
Total deposits	$	4,129,408	100.0	%	0.41	%	$	3,958,106	100.0	%	0.44	%

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Total deposits increased $171.3 million, or 8.7% on an annualized basis, to $4.1 billion at June 30, 2015 as compared to $4.0 billion at December 31, 2014. Deposits as a percentage of total assets increased from 68.2% at December 31, 2014 to 71.4% at June 30, 2015. The increase in deposits as a percentage of total assets is primarily due to the growth in brokered deposits, non-interest-bearing accounts and the maturity of FHLBB advances using the excess liquidity generated by the sale of the indirect auto loans in the first quarter of 2015.

At June 30, 2015, the Company had $172.9 million of brokered deposits compared to $62.0 million at December 31, 2014. Brokered deposits allow the Company to seek additional funding by attracting deposits from outside the Company's core market. The Company's investment policy limits the amount of brokered deposits to 15% of total assets. Brokered deposits are included in the certificate of deposit balance, which increased$96.2 million, or 20.3% on an annualized basis, during the first six months of 2015. Certificates of deposit have also increased as a percentage of total deposits to 25.3% at June 30, 2015 from 23.9% at December 31, 2014.

During the first six months of 2015, core deposits increased $75.1 million, or 5.0% on an annualized basis. However, as a percentage of total deposits, the ratio decreased from 76.1% at December 31, 2014 to 74.7% at June 30, 2015, primarily due to the shift in deposit mix and increase in brokered deposits.

The following table sets forth the distribution of the average balances of the Company’s deposit accounts for the periods indicated and the weighted average interest rates on each category of deposits presented. Averages for the periods presented are based on daily balances.

	Three Months Ended June 30,
	2015						2014
	Average Balance		Percent of Total Average Deposits		Weighted Average Rate		Average Balance		Percent of Total Average Deposits		Weighted Average Rate
	(Dollars in Thousands)
Core deposits:
Non-interest-bearing demand checking accounts	$	750,827	18.1	%	0.00	%	$	690,549	17.9	%	0.00	%
NOW accounts	248,786		6.0	%	0.07	%	217,082		5.6	%	0.08	%
Savings accounts	554,618		13.4	%	0.19	%	523,773		13.6	%	0.23	%
Money market accounts	1,544,877		37.2	%	0.44	%	1,528,959		39.6	%	0.51	%
Total core deposits	3,099,108		74.7	%	0.26	%	2,960,363		76.7	%	0.31	%
Certificate of deposit accounts	1,049,297		25.3	%	0.88	%	901,272		23.3	%	0.85	%
Total deposits	$	4,148,405	100.0	%	0.42	%	$	3,861,635	100.0	%	0.44	%

	Six Months Ended June 30,
	2015						2014
	Average Balance		Percent of Total Average Deposits		Weighted Average Rate		Average Balance		Percent of Total Average Deposits		Weighted Average Rate
	(Dollars in Thousands)
Core deposits:
Non-interest-bearing demand checking accounts	$	739,526	18.0	%	0.00	%	$	682,599	17.7	%	0.00	%
NOW accounts	243,283		5.9	%	0.07	%	215,826		5.6	%	0.08	%
Savings accounts	548,143		13.3	%	0.20	%	516,206		13.4	%	0.24	%
Money market accounts	1,540,837		37.5	%	0.46	%	1,517,537		39.5	%	0.52	%
Total core deposits	3,071,789		74.7	%	0.27	%	2,932,168		76.2	%	0.32	%
Certificate of deposit accounts	1,041,447		25.3	%	0.86	%	914,166		23.8	%	0.86	%
Total deposits	$	4,113,236	100.0	%	0.42	%	$	3,846,334	100.0	%	0.45	%

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The following table sets forth the maturity periods for certificates of deposit of $250,000 or more deposited with the Company at the dates indicated:

	At June 30, 2015				At December 31, 2014
	Amount		Weighted Average Rate		Amount		Weighted Average Rate
	(Dollars in Thousands)
Maturity period:
Six months or less	$	65,246	0.70	%	$	81,937	0.66	%
Over six months through 12 months	41,445		0.78	%	33,602		0.93	%
Over 12 months	53,907		1.34	%	43,298		1.30	%
	$	160,598	0.94	%	$	158,837	0.89	%

Borrowed Funds

The following table sets forth certain information regarding FHLBB advances, subordinated debentures and notes and other borrowed funds for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(Dollars in Thousands)
Average balance outstanding	$	899,807		$	927,897		$	980,408		$	885,268
Maximum amount outstanding at any month-end during the period	937,648			1,041,004			1,094,459			1,041,004
Balance outstanding at end of period	937,648			1,041,004			937,648			1,041,004
Weighted average interest rate for the period	1.63		%	1.16		%	1.52		%	1.21		%
Weighted average interest rate at end of period	1.59		%	1.08		%	1.59		%	1.08		%

Advances from the FHLBB

On a long-term basis, the Company intends to continue to increase its core deposits. The Company also uses FHLBB borrowings and other wholesale borrowing opportunistically as part of the Company’s overall strategy to fund loan growth and manage interest-rate risk and liquidity. The advances are secured by blanket security agreements which require the Banks to maintain as collateral certain qualifying assets, principally mortgage loans and securities in an aggregate amount at least equal to outstanding advances. The maximum amount that the FHLBB will advance to member institutions, including the Company, fluctuates from time to time in accordance with the policies of the FHLBB. The Company may also borrow from the FRB “discount window” as necessary.

FHLBB borrowings decreased$0.2 billion to $0.8 billion at June 30, 2015 from $1.0 billion at December 31, 2014. The decrease in FHLBB borrowings was primarily due to maturities of advances from the FHLBB.

Repurchase Agreements

The Company periodically enters into repurchase agreements with its larger deposit and commercial customers as part of its cash management services which are typically overnight borrowings. Short-term borrowings and repurchase agreements with Company customers decreased approximately $8.2 million during the six months endedJune 30, 2015, from $39.6 million at December 31, 2014 to $31.4 million at June 30, 2015, as customers shifted funds into other deposit products.

Subordinated Debentures and Notes

In the third quarter of 2014, the Company offered $75.0 million of 6.0% fixed-to-floating subordinated notes due September 15, 2029. The Company is obligated to pay 6.0% interest semiannually between September 2014 and September 2024. Subsequently, the Company is obligated to pay 3-month LIBOR plus 3.315% quarterly until the notes mature in September 2029.

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The following table summarizes the Company's subordinated debentures and notes at the dates indicated.

				Carrying Amount at June 30, 2015		Carrying Amount at December 31, 2014
Issue Date	Rate	Maturity Date	Next Call Date
(Dollars in Thousands)
June 26, 2003	Variable; 3-month LIBOR + 3.10%	June 26, 2033	December 26, 2015	$	4,710	$	4,696
March 17, 2004	Variable; 3-month LIBOR + 2.79%	March 17, 2034	December 17, 2015	$	4,566	$	4,543
September 15, 2014	6.0% Fixed-to-Variable; 3-month LIBOR + 3.315%	September 15, 2029	September 15, 2024	$	73,574	$	73,524

The above carrying amounts of the acquired subordinated debentures included $0.7 million of accretion adjustments and $1.4 million of capitalized debt issuance costs as of June 30, 2015. This compares to $0.8 million of accretion adjustments and $1.5 million of capitalized debt issuance costs as of December 31, 2014.

Derivative Financial Instruments

The Company has entered into interest-rate swaps with certain of its commercial customers and concurrently enters into offsetting swaps with third-party financial institutions. The Company did not have derivative fair value hedges or derivative cash flow hedges at June 30, 2015 or December 31, 2014. The following table summarizes certain information concerning the Company’s interest-rate swaps at June 30, 2015 and at December 31, 2014:

	Interest-Rate Swaps
	At June 30, 2015			At December 31, 2014
	(Dollars in Thousands)
Notional principal amounts	$	224,748		$	109,362
Fixed weighted average interest rate from the Company to counterparty	4.34		%	4.72		%
Floating weighted average interest rate from counterparty to the Company	3.99		%	3.83		%
Weighted average remaining term to maturity (in months)	108			100
Fair value:
Recognized as an asset	$	2,649		$	2,676
Recognized as a liability	$	2,484		$	2,714

Stockholders’ Equity and Dividends

The Company’s total stockholders’ equity was $653.5 million at June 30, 2015, a $11.7 millionincrease compared to $641.8 million at December 31, 2014. The increase primarily reflects net income attributable to the Company of $23.6 million for the six months endedJune 30, 2015, an unrealized loss on securities available-for-sale of $0.2 million (after-tax), an increase of $0.4 million related to stock-based compensation, offset by common stock dividends of $12.3 million paid in that same period.

Stockholders’ equity represented 11.30% of total assets at June 30, 2015, as compared to 11.06% at December 31, 2014. Tangible stockholders’ equity (total stockholders’ equity less goodwill and identified intangible assets, net) represented 8.94% of tangible assets (total assets less goodwill and identified intangible assets, net) at June 30, 2015, as compared to 8.68% at December 31, 2014.

For the six months endedJune 30, 2015, the dividend payout ratio was 53.32%, compared to 54.93% for the six months endedDecember 31, 2014. Dividend payout ratios were 53.32% and 52.19% for the three and six months endedJune 30, 2015, respectively. This compared to 58.87% and 57.70% for the three and six months endedJune 30, 2014, respectively.

Results of Operations — Comparison of the Three and Six-Month Periods Ended June 30, 2015 and June 30, 2014

The primary drivers of the Company’s operating income are net interest income, which is strongly affected by the net yield on interest-earning assets and liabilities (“net interest margin”), the quality of the Company’s assets, its levels of non-interest income and non-interest expense, and its tax provision.

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The Company’s net interest income represents the difference between interest income earned on its investments, loans and leases, and its cost of funds. Interest income depends on the amount of interest-earning assets outstanding during the period and the yield earned thereon. Cost of funds is a function of the average amount of deposits and borrowed money outstanding during the period and the interest rates paid thereon. The net interest margin is calculated by dividing net interest income by average interest-earning assets. Net interest spread is the difference between the average rate earned on interest-earning assets and the average rate paid on interest-bearing liabilities. The increases (decreases) in the components of interest income and interest expense, expressed in terms of fluctuation in average volume and rate, are summarized under “Rate/Volume Analysis” below. Information as to the components of interest income, interest expense and average rates is provided under “Average Balances, Net Interest Income, Interest-Rate Spread and Net Interest Margin” below.

Because the Company’s assets and liabilities are not identical in duration and in repricing dates, the differential between the asset and liability repricing and duration is vulnerable to changes in market interest rates as well as the overall shape of the yield curve. These vulnerabilities are inherent to the business of banking and are commonly referred to as “interest-rate risk.” How interest-rate risk is measured and, once measured, how much interest-rate risk is taken is based on numerous assumptions and other subjective judgments. See the discussion in “Item 3. Quantitative and Qualitative Disclosures about Market Risk” below.

The quality of the Company’s assets also influences its earnings. Loans and leases that are not paid on a timely basis and exhibit other weaknesses can result in the loss of principal and/or interest income. Additionally, the Company must make timely provisions to the allowance for loan and lease losses based on estimates of probable losses inherent in the loan and lease portfolio. These additions, which are charged against earnings, are necessarily greater when greater probable losses are expected. Further, the Company incurs expenses as a result of resolving troubled assets. These variables reflect the “credit risk” that the Company takes on in the ordinary course of business and are further discussed under “Financial Condition — Asset Quality” above.

Net Interest Income

Net interest income of $47.2 million for the quarter ended June 30, 2015increased$0.7 million, or 1.6%, as compared to the second quarter of 2014. This overall increase was a result of an increase in total interest income of approximately $1.8 million, or 3.4%, to $55.2 million at June 30, 2015 from $53.3 million at June 30, 2014, offset by an increase in interest expense of $1.1 million, or 15.7%, to $8.0 million at June 30, 2015 from $6.9 million at June 30, 2014. Refer to “Results of Operations - Comparison of the Three-Month and Six-Month Periods Ended June 30, 2015 and June 30, 2014 — Interest Income” and “Results of Operations - Comparison of the Three-Month and Six-Month Periods Ended June 30, 2015 and June 30, 2014 — Interest Expense Deposit and Borrowed Funds” below for more details.

 Net interest income of $95.7 million for the six months endedJune 30, 2015increased approximately $1.6 million, or 1.6%, as compared to the six months endedJune 30, 2014. This overall increase was a result of an increase in total interest income of approximately $3.8 million, or 3.5%, to $111.8 million at June 30, 2015 from $108.0 million at June 30, 2014, offset by an increase in interest expense of $2.2 million, or 15.9%, to $16.1 million at June 30, 2015 from $13.9 million at June 30, 2014. Refer to “Results of Operations - Comparison of the Three-Month and Six-Month Periods Ended June 30, 2015 and June 30, 2014 — Interest Income” and “Results of Operations - Comparison of the Three-Month and Six-Month Periods Ended June 30, 2015 and June 30, 2014 — Interest Expense Deposit and Borrowed Funds” below for more details.

Net interest margin decreased to 3.49% in the second quarter of 2015 from 3.63% in the second quarter of 2014. Net interest margin decreased to 3.53% for the six months endedJune 30, 2015 from 3.74% for the six months endedJune 30, 2014.The decrease in the net interest margin is the result of repricing interest-earning assets in a lower interest rate environment without a comparable offset in lower funding costs.

The yield on interest-earning assets decreased to 4.07% in the second quarter of 2015 from 4.15% during the second quarter of 2014. The decrease is the result of the continued pricing pressure due to the low interest rate environment and the intense competition in most loan categories, as well as a decrease in accretion on acquired loans and leases, offset by an increase in prepayment penalties and late charges. During the second quarter of 2015, the Company benefited from a $0.8 million accretion on acquired loans and leases, which contributed 6 basis points to yields on interest-earning assets, compared to $1.5 million, or 11 basis points, in the second quarter of 2014. In addition, the Company recorded $0.9 million in prepayment penalties and late charges, which contributed 7 basis points to yields on interest-earning assets, in the second quarter of 2015, compared to $0.1 million, or 1 basis points, in the second quarter of 2014.

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The yield on interest-earning assets decreased to 4.09% for the six months endedJune 30, 2015 from 4.26% for the six months endedJune 30, 2014. This decrease is the result of the continued pricing pressure due to the low interest rate environment and the intense competition in most loan categories, as well as a decrease in accretion on acquired loans and leases, offset by an increase in prepayment penalties and late charges. During the six months endedJune 30, 2015, the Company benefited from a $2.0 million accretion on acquired loans and leases, which contributed 7 basis points to yields on interest-earning assets, compared to $5.7 million, or 22 basis points, in the six months endedJune 30, 2014. In addition, the Company recorded $1.5 million in prepayment penalties and late charges, which contributed 5 basis points to yields on interest-earning assets, in the six months endedJune 30, 2015, compared to $0.1 million, or 1 basis points, in the six months endedJune 30, 2014.

The overall cost of funds (including non-interest-bearing demand checking accounts) increased5 basis points to 0.63% for the three months ended June 30, 2015 from 0.58% for the three months ended June 30, 2014. The overall cost of funds increased4 basis points to 0.63% for the six months endedJune 30, 2015 from 0.59% for the six months endedJune 30, 2014. The increase was driven by the issuance of the $75.0 million subordinated notes in September 2014. Refer to "Financial Condition - Borrowed Funds" above for more details.

Future net interest income, net interest spread and net interest margin may continue to be negatively affected by the low interest-rate environment; ongoing pricing pressures in both loan and deposit portfolios; and the ability of the Company to increase its core deposit ratio, increase its non-interest-bearing deposits as a percentage of total deposits, decrease its loan-to-deposit ratio, or decrease its reliance on FHLBB advances. They may also be negatively affected by changes in the amount of accretion on acquired loans and leases, deposits and borrowed funds included in interest income and interest expense.

Average Balances, Net Interest Income, Interest-Rate Spread and Net Interest Margin

The following tables set forth information about the Company’s average balances, interest income and interest rates earned on average interest-earning assets, interest expense and interest rates paid on average interest-bearing liabilities, interest-rate spread and net interest margin for the three months and six months ended June 30, 2015 and June 30, 2014. Average balances are derived from daily average balances and yields include fees, costs and purchase-accounting-related premiums and discounts which are considered adjustments to coupon yields in accordance with GAAP. Certain amounts previously reported have been reclassified to conform to the current period’s presentation.

76

	Three Months Ended
	June 30, 2015							June 30, 2014
	Average Balance			Interest (1)		Average Yield/ Cost		Average Balance			Interest (1)		Average Yield/ Cost
	(Dollars in Thousands)
Assets:
Interest-earning assets:
Debt securities	$	591,120		$	2,941	1.99	%	$	526,471		$	2,360	1.79	%
Marketable and restricted equity securities	76,332			493		2.59	%	69,483			543		3.13	%
Short-term investments	85,737			60		0.28	%	36,850			14		0.16	%
Total investments	753,189			3,494		1.86	%	632,804			2,917		1.84	%
Commercial real estate loans (2)	2,505,925			26,391		4.21	%	2,288,018			25,395		4.42	%
Commercial loans and leases (2)	639,609			6,394		3.96	%	504,572			5,246		4.12	%
Equipment financing (2)	627,032			10,793		6.89	%	541,029			9,155		6.77	%
Indirect automobile loans (2)	21,171			218		4.13	%	374,489			3,032		3.25	%
Residential mortgage loans (2)	589,171			5,260		3.57	%	532,310			4,918		3.70	%
Other consumer loans (2)	308,932			2,838		3.68	%	277,802			2,833		4.09	%
Total loans and leases	4,691,840			51,894		4.42	%	4,518,220			50,579		4.46	%
Total interest-earning assets	5,445,029			55,388		4.07	%	5,151,024			53,496		4.15	%
Allowance for loan and lease losses	(55,427		)					(50,809		)
Non-interest-earning assets*	373,018							359,789
Total assets*	$	5,762,620						$	5,460,004
Liabilities and Stockholders’ Equity:
Interest-bearing liabilities:
Interest-bearing deposits:
NOW accounts	$	248,786		45		0.07	%	$	217,082		42		0.08	%
Savings accounts	554,618			263		0.19	%	523,773			303		0.23	%
Money market accounts	1,544,877			1,693		0.44	%	1,528,959			1,936		0.51	%
Certificates of deposit	1,049,297			2,295		0.88	%	901,272			1,920		0.85	%
Total interest-bearing deposits (3)	3,397,578			4,296		0.51	%	3,171,086			4,201		0.53	%
Advances from the FHLBB	782,434			2,415		1.22	%	892,770			2,602		1.15	%
Subordinated debentures and notes	82,827			1,250		6.03	%	9,189			99		4.31	%
Other borrowed funds	34,546			33		0.39	%	25,938			10		0.15	%
Total borrowed funds	899,807			3,698		1.63	%	927,897			2,711		1.16	%
Total interest-bearing liabilities	4,297,385			7,994		0.75	%	4,098,983			6,912		0.68	%
Non-interest-bearing liabilities:
Demand checking accounts (3)	750,827							690,549
Other non-interest-bearing liabilities	54,352							39,219
Total liabilities	5,102,564							4,828,751
Brookline Bancorp, Inc. stockholders’ equity*	655,223							627,114
Noncontrolling interest in subsidiary	4,833							4,139
Total liabilities and equity*	$	5,762,620						$	5,460,004
Net interest income (tax-equivalent basis) / Interest-rate spread (4)				47,394		3.32	%				46,584		3.47	%
Less adjustment of tax-exempt income				222							150
Net interest income				$	47,172						$	46,434
Net interest margin (5)						3.49	%						3.63	%

(1) Tax-exempt income on debt securities, equity securities and revenue bonds included in commercial real estate and commercial loans is included on a tax-equivalent basis.

(2) Loans on nonaccrual status are included in the average balances.

(3) Including non-interest-bearing checking accounts, the average interest rate on total deposits was 0.42% and 0.44% in the three months ended June 30, 2015 and June 30, 2014, respectively.

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

(5) Net interest margin represents net interest income (tax equivalent basis) divided by average interest-earning assets.

(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01.

77

	Six Months Ended
	June 30, 2015							June 30, 2014
	Average Balance			Interest (1)		Average Yield/ Cost		Average Balance			Interest (1)		Average Yield/ Cost
	(Dollars in Thousands)
Assets:
Interest-earning assets:
Debt securities	572,966			5,625		1.96	%	$	514,134		$	4,626	1.80	%
Marketable and restricted equity securities	76,059			1,015		2.67	%	68,692			992		2.89	%
Short-term investments	67,888			81		0.24	%	41,317			58		0.28	%
Total investments	716,913			6,721		1.87	%	624,143			5,676		1.82	%
Commercial real estate loans (2)	2,491,020			52,636		4.23	%	2,258,422			51,097		4.53	%
Commercial loans (2)	625,231			12,901		4.11	%	489,732			9,939		4.04	%
Equipment financing (2)	619,214			21,337		6.89	%	532,570			20,192		7.58	%
Indirect automobile loans (2)	151,110			2,360		3.15	%	379,633			6,296		3.34	%
Residential mortgage loans (2)	583,049			10,568		3.62	%	532,451			9,727		3.65	%
Other consumer loans (2)	304,052			5,666		3.76	%	272,532			5,412		4.00	%
Total loans and leases	4,773,676			105,468		4.42	%	4,465,340			102,663		4.60	%
Total interest-earning assets	5,490,589			112,189		4.09	%	5,089,483			108,339		4.26	%
Allowance for loan and lease losses	(54,876		)					(49,953		)
Non-interest-earning assets*	371,408							364,175
Total assets*	$	5,807,121						$	5,403,705
Liabilities and Stockholders’ Equity:
Interest-bearing liabilities:
Interest-bearing deposits:
NOW accounts	$	243,283		$	88	0.07	%	$	215,826		$	83	0.08	%
Savings accounts	548,143			536		0.20	%	516,206			606		0.24	%
Money market accounts	1,540,837			3,509		0.46	%	1,517,537			3,895		0.52	%
Certificates of deposit	1,041,447			4,467		0.86	%	914,166			3,908		0.86	%
Total interest-bearing deposits (3)	3,373,710			8,600		0.51	%	3,163,735			8,492		0.54	%
Advances from the FHLBB	861,435			4,919		1.14	%	848,495			5,133		1.20	%
Subordinated debentures and notes	82,806			2,498		6.03	%	9,180			198		4.31	%
Other borrowed funds	36,167			58		0.32	%	27,593			49		0.36	%
Total borrowed funds	980,408			7,475		1.52	%	885,268			5,380		1.21	%
Total interest-bearing liabilities	4,354,118			16,075		0.74	%	4,049,003			13,872		0.69	%
Non-interest-bearing liabilities:
Demand checking accounts (3)	739,526							682,599
Other non-interest-bearing liabilities	56,775							43,141
Total liabilities	5,150,419							4,774,743
Brookline Bancorp, Inc. stockholders’ equity*	651,971							624,769
Noncontrolling interest in subsidiary	4,731							4,193
Total liabilities and equity*	$	5,807,121						$	5,403,705
Net interest income (tax-equivalent basis) / Interest-rate spread (4)				96,114		3.35	%				94,467		3.57	%
Less adjustment of tax-exempt income				414							299
Net interest income				$	95,700						$	94,168
Net interest margin (5)						3.53	%						3.74	%

(1) Tax-exempt income on debt securities, equity securities and revenue bonds included in commercial real estate and commercial loans is included on a tax-equivalent basis.

(2) Loans on nonaccrual status are included in the average balances.

(3) Including non-interest-bearing checking accounts, the average interest rate on total deposits was 0.42% and 0.45% in the six months endedJune 30, 2015 and June 30, 2014, respectively.

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

(5) Net interest margin represents net interest income (tax equivalent basis) divided by average interest-earning assets.

(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01.

78

Rate/Volume Analysis

The following table presents, on a tax-equivalent basis, the extent to which changes in interest rates and changes in volume of interest-earning assets and interest-bearing liabilities have affected the Company’s interest income and interest expense during the periods indicated. Information is provided in each category with respect to: (i) changes attributable to changes in volume (changes in volume multiplied by prior rate), (ii) changes attributable to changes in rate (changes in rate multiplied by prior volume) and (iii) the net change. The changes attributable to the combined impact of volume and rate have been allocated proportionately to the changes due to volume and the changes due to rate.

	Three Months Ended June 30, 2015 as Compared to the Three Months Ended June 30, 2014									Six Months Ended June 30, 2015 as Compared to the Six Months Ended June 30, 2014
	Increase									Increase
	(Decrease) Due To									(Decrease) Due To
	Volume			Rate			Net			Volume			Rate			Net
	(In Thousands)
Interest and dividend income
Debt securities	$	304		$	277		$	581		$	562		$	437		$	999
Marketable and restricted equity securities	50			(100		)	(50		)	101			(78		)	23
Short-term investments	29			17			46			32			(9		)	23
Total investments	383			194			577			695			350			1,045
Loans and leases:
Commercial real estate loans	2,263			(1,267		)	996			5,026			(3,487		)	1,539
Commercial loans and leases	1,354			(206		)	1,148			2,787			175			2,962
Equipment financing	1,474			164			1,638			3,071			(1,926		)	1,145
Indirect automobile loans	(3,463		)	649			(2,814		)	(3,596		)	(340		)	(3,936		)
Residential mortgage loans	517			(175		)	342			920			(79		)	841
Other consumer loans	302			(297		)	5			594			(340		)	254
Total loans and leases	2,447			(1,132		)	1,315			8,802			(5,997		)	2,805
Total change in interest and dividend income	2,830			(938		)	1,892			9,497			(5,647		)	3,850
Interest expense
Deposits:
NOW accounts	7			(4		)	3			13			(8		)	5
Savings accounts	16			(56		)	(40		)	36			(106		)	(70		)
Money market accounts	20			(263		)	(243		)	61			(447		)	(386		)
Certificates of deposit	309			66			375			559			—			559
Total deposits	352			(257		)	95			669			(561		)	108
Borrowed funds:
Advances from the FHLBB	(334		)	147			(187		)	68			(282		)	(214		)
Subordinated debentures and notes	1,096			55			1,151			2,191			109			2,300
Other borrowed funds	4			19			23			15			(6		)	9
Total borrowed funds	766			221			987			2,274			(179		)	2,095
Total change in interest expense	1,118			(36		)	1,082			2,943			(740		)	2,203
Change in tax-exempt income	72			—			72			115			—			115
Change in net interest income	$	1,640		$	(902	)	$	738		$	6,439		$	(4,907	)	$	1,532

79

Interest Income

Loans and Leases

	Three Months Ended June 30,				Dollar			Percent		Six Months Ended   June 30,				Dollar			Percent
	2015		2014		Change			Change		2015		2014		Change			Change
	(Dollars in Thousands)
Interest income — loans and leases:
Commercial real estate loans	$	26,391	$	25,265	$	1,126		4.5	%	$	52,635	$	50,837	$	1,798		3.5	%
Commercial loans	6,185		5,231		954			18.2	%	12,499		9,911		2,588			26.1	%
Equipment financing	10,793		9,155		1,638			17.9	%	21,337		20,192		1,145			5.7	%
Indirect automobile loans	218		3,032		(2,814		)	-92.8	%	2,360		6,296		(3,936		)	-62.5	%
Residential mortgage loans	5,260		4,917		343			7.0	%	10,568		9,727		841			8.6	%
Other consumer loans	2,837		2,833		4			0.1	%	5,666		5,412		254			4.7	%
Total interest income — loans and leases	$	51,684	$	50,433	$	1,251		2.5	%	$	105,065	$	102,375	$	2,690		2.6	%

Interest income from loans and leases was $51.7 million for the three months ended June 30, 2015, resulting in a yield on total loans and leases of 4.42%. This compares to $50.4 million of interest on loans and leases and a yield of 4.46% for the three months ended June 30, 2014. The year-over-year $1.3 millionincrease in interest income from loans and leases was due to an increase of $2.4 million due to increased origination volume, offset by a decrease of $1.1 million due to changes in rate. Accretion on acquired loans and leases of $0.8 million contributed 7 basis points to net interest margin during the second quarter of 2015, compared to $1.5 million and 11 basis points in the second quarter of 2014. 

Interest income from loans and leases was $105.1 million for the six months ended June 30, 2015, resulting in a yield on total loans and leases of 4.42%. This compares to $102.4 million of interest on loans and leases and a yield of 4.60% for the six months ended June 30, 2014. The year-over-year increase in interest income from loans and leases was due to an increase of $8.8 million due to increased origination volume, offset by a decrease of $6.0 million due to changes in rate. Accretion on acquired loans and leases of $$2.0 million contributed 8 basis points to net interest margin for the six months ended June 30, 2015, compared to $5.7 million and 22 basis points in the six months ended June 30, 2014.

Investments

	Three Months Ended June 30,				Dollar			Percent		Six Months Ended June 30,				Dollar		Percent
	2015		2014		Change			Change		2015		2014		Change		Change
	(Dollars in Thousands)
Interest income — investments:
Debt securities	$	2,931	$	2,360	$	571		24.2	%	$	5,614	$	4,619	$	995	21.5	%
Marketable and restricted equity securities	491		539		(48		)	-8.9	%	1,015		988		27		2.7	%
Short-term investments	60		14		46			328.6	%	81		58		23		39.7	%
Total interest income — investments	$	3,482	$	2,913	$	569		19.5	%	$	6,710	$	5,665	$	1,045	18.4	%

Total investment income was $3.5 million for the three months ended June 30, 2015, compared to $2.9 million for the three months ended June 30, 2014. The yield on investments increased to 1.86% for the quarter ended June 30, 2015 from 1.84% for the quarter ended June 30, 2014. The $0.6 million year-over-year increase in quarterly interest income on investments was driven by a $0.4 million increase due to volume and a $0.2 million increase due to rates.

Total investment income was $6.7 million for the six months endedJune 30, 2015, compared to $5.7 million for the six months endedJune 30, 2014. The yield on investments increased to 1.87% for the six months endedJune 30, 2015 from 1.82%

80

for the six months endedJune 30, 2014. The $1.0 million year-over-year increase in interest income on investments was driven by a $0.7 million increase due to volume and a $0.4 million increase due to rates.

Interest Expense - Deposits and Borrowed Funds

	Three Months Ended June 30,				Dollar			Percent		Six Months Ended June 30,				Dollar			Percent
	2015		2014		Change			Change		2015		2014		Change			Change
	(Dollars in Thousands)
Interest expense:
Deposits:
NOW accounts	$	45	$	42	$	3		7.1	%	$	88	$	83	$	5		6.0	%
Savings accounts	263		303		(40		)	-13.2	%	536		606		(70		)	-11.6	%
Money market accounts	1,693		1,936		(243		)	-12.6	%	3,509		3,895		(386		)	-9.9	%
Certificates of deposit	2,295		1,920		375			19.5	%	4,467		3,908		559			14.3	%
Total interest expense - deposits	4,296		4,201		95			2.3	%	8,600		8,492		108			1.3	%
Borrowed funds:
Advances from the FHLBB	2,415		2,602		(187		)	-7.2	%	4,919		5,133		(214		)	-4.2	%
Subordinated debentures and notes	1,250		99		1,151			1,162.6	%	2,498		198		2,300			1,161.6	%
Other borrowed funds	33		10		23			230.0	%	58		49		9			18.4	%
Total interest expense - borrowed funds	3,698		2,711		987			36.4	%	7,475		5,380		2,095			38.9	%
Total interest expense	$	7,994	$	6,912	$	1,082		15.7	%	$	16,075	$	13,872	$	2,203		15.9	%

Deposits

Interest expense on deposits increased$0.1 million to $4.3 million for the three months ended June 30, 2015 from $4.2 million for the three months ended June 30, 2014. Accretion on acquired deposits was minimal for the three months ended June 30, 2015 compared to $0.1 million for the three months ended June 30, 2014. Accretion had no impact on the Company's net interest margin for the three months ended June 30, 2015 and improved the Company’s net interest margin by 1 basis point for the three months ended June 30, 2014.

Interest expense on deposits increased$0.1 million to $8.6 million for the six months endedJune 30, 2015 from $8.5 million for the six months endedJune 30, 2014. Accretion on acquired deposits was minimal for the six months endedJune 30, 2015 compared to $0.1 million for the six months endedJune 30, 2014. Accretion had no impact on the Company's net interest margin for the six months endedJune 30, 2015 and improved the Company’s net interest margin by 1 basis point for the six months endedJune 30, 2014.

While interest-bearing deposit balances increased during these periods, the increases in interest expense on deposits due to volume were mostly offset by decreases in interest expense due to deposit offering rates. The cost of total interest-bearing deposits decreased to 0.51% in the three months ended June 30, 2015 from 0.53% during the three months ended June 30, 2014. The cost of total interest-bearing deposits decreased to 0.51% in the three months ended June 30, 2015 from 0.54% during the three months ended June 30, 2014.

81

Borrowed Funds

Interest paid on borrowed funds increased by $1.0 million, or 36.4%, to $3.7 million for the three months ended June 30, 2015 from $2.7 million for the three months ended June 30, 2014. The increase was primarily due to the new subordinated notes issued in September 2014. The cost of borrowed funds increased to 1.63% for the quarter ended June 30, 2015 from 1.16% during the quarter ended June 30, 2014. The increase in interest expense was due to a $0.2 millionincrease due to higher borrowing rates and an increase in interest expense of $0.8 million due to higher volume. Accretion on acquired borrowed funds of $0.7 million improved the Company’s net interest margin by 5 basis points for the three months ended June 30, 2015. This compared to $0.7 million and 7 basis points for the three months ended June 30, 2014.

Interest paid on borrowed funds increased by $2.1 million, or 38.9%, to $7.5 million for the six months endedJune 30, 2015 from $5.4 million for the six months endedJune 30, 2014. The increase was primarily due to the new subordinated notes issued in September 2014. While the overall cost of borrowed funds increased to 1.52% for the six months endedJune 30, 2015 from 1.21% for the six months endedJune 30, 2014, the cost of FHLBB advances decreased during the same periods. The decrease in interest expense of $0.2 million due to rates was driven by a decrease of $0.3 million due to FHLBB rates, offset by $0.1 million increase due to subordinated debentures and notes rates. This decrease in interest expense due to rates is offset by increase in interest expense of $2.3 million due to higher volume. Accretion on acquired borrowed funds of $1.4 million improved the Company’s net interest margin by 5 basis points for the six months ended June 30, 2015. This compared to $1.4 million and 7 basis points for the six months ended June 30, 2014.

Provision for Credit Losses

The provisions for credit losses are set forth below:

	Three Months Ended June 30,						Dollar			Percent		Six Months Ended June 30,						Dollar			Percent
	2015			2014			Change			Change		2015			2014			Change			Change
	(Dollars in Thousands)
Provision (credit) for loan and lease losses:
Commercial real estate	$	(82	)	$	1,857		$	(1,939	)	-104.4	%	$	172		$	3,693		$	(3,521	)	-95.3	%
Commercial	1,296			900			396			44.0	%	4,661			1,524			3,137			205.8	%
Indirect automobile	(90		)	77			(167		)	-216.9	%	(1,724		)	2			(1,726		)	N/A
Consumer	594			(6		)	600			N/A		843			(90		)	933			N/A
Unallocated	75			(646		)	721			-111.6	%	142			(530		)	672			-126.8	%
Total provision for loan and lease losses	1,793			2,182			(389		)	-17.8	%	4,094			4,599			(505		)	-11.0	%
Unfunded credit commitments	120			94			26			27.7	%	82			120			(38		)	-31.7	%
Total provision for credit losses	$	1,913		$	2,276		$	(363	)	-15.9	%	$	4,176		$	4,719		$	(543	)	-11.5	%

N/A - percent change not meaningful

The provision for credit losses decreased $0.4 million, or 15.9%, to $1.9 million for the three months ended June 30, 2015 from $2.3 million for the three months ended June 30, 2014. The provision for credit losses decreased $0.5 million, or 11.5%, to $4.2 million for the six months ended June 30, 2015 from $4.7 million for the six months ended June 30, 2014.

The decreases in the provision for credit losses was due to decreased provisions for the commercial real estate portfolio as a result of improvement in credit characteristics and decreased provisions as a result of the sale of the indirect automobile portfolio in the first quarter of 2015. These decreases were offset by increases in the provision for the commercial portfolio, consumer portfolio and for the deterioration of one commercial relationship during the first quarter of 2015. See Management’s

discussion of “Financial Condition — Allowance for Loan and Lease Losses” and Note 5, “Allowance for Loan and Lease

Losses,” to the unaudited consolidated financial statements for a description of how management determined the allowance for

loan and lease losses for each portfolio and class of loans.

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Non-Interest Income

The following table sets forth the components of non-interest income for the periods indicated:

	Three Months Ended June 30,					Dollar			Percent		Six Months Ended June 30,					Dollar			Percent
	2015		2014			Change			Change		2015		2014			Change			Change
	(Dollars in Thousands)
Deposit fees	$	2,195	$	2,204		$	(9	)	-0.4	%	4,261		4,163			98			2.4	%
Loan fees	271		126			145			115.1	%	613		560			53			9.5	%
Loan level derivative income	941		62			879			1,417.7	%	941		62			879			1,417.7	%
Loss on sales of securities, net	—		(13		)	13			-100.0	%	—		(13		)	13			-100.0	%
Gain on sales of loans and leases held-for-sale	279		54			225			416.7	%	1,148		656			492			75.0	%
(Loss)/gain on sale/disposals of premises and equipment, net	—		(6		)	6			-100.0	%	—		1,504			(1,504		)	-100.0	%
Other	1,181		1,395			(214		)	-15.3	%	2,374		2,518			(144		)	-5.7	%
Total non-interest income	$	4,867	$	3,822		$	1,045		27.3	%	$	9,337	$	9,450		$	(113	)	-1.2	%

Total non-interest income increased approximately $1.1 million, or 27.3%, to $4.9 million for the three months ended June 30, 2015, from $3.8 million for the three months ended June 30, 2014. The increase is primarily attributable to a $0.9 million increase in loan level derivative income and a $0.2 million increase in gain on sales of loans and leases held-for-sale.

Total non-interest income decreased approximately $0.1 million, or 1.2%, to $9.3 million for the six months endedJune 30, 2015, from over $9.4 million for the six months endedJune 30, 2014. The decreased is primarily attributable to a $0.9 million increase in loan level derivative income and a $0.5 million increase in gain on sales of loans and leases held-for-sale, offset by a $1.5 million decrease in gain on sale/disposals of premises and equipment related to the sale of a building in 2014.

The increase in loan level derivative income in the three months and six months endedJune 30, 2015 is due to the execution of several loan level interest rate swap agreements in the first two quarters of 2015. The increase in gain on sales of loan and leases held-for-sale was primarily driven by the increased loan participations to manage concentration risk.

Non-Interest Expense

The following table sets forth the components of non-interest expense:

	Three Months Ended June 30,				Dollar			Percent		Six Months Ended June 30,				Dollar			Percent
	2015		2014		Change			Change		2015		2014		Change			Change
	(Dollars in Thousands)
Compensation and employee benefits	$	17,085	$	17,295	$	(210	)	-1.2	%	$	34,609	$	35,327	$	(718	)	-2.0	%
Occupancy	3,437		3,154		283			9.0	%	6,909		7,559		(650		)	-8.6	%
Equipment and data processing	3,680		4,348		(668		)	-15.4	%	7,700		8,725		(1,025		)	-11.7	%
Professional services	1,163		1,480		(317		)	-21.4	%	2,257		3,207		(950		)	-29.6	%
FDIC insurance	831		847		(16		)	-1.9	%	1,698		1,707		(9		)	-0.5	%
Advertising and marketing	823		776		47			6.1	%	1,571		1,441		130			9.0	%
Amortization of identified intangible assets	724		827		(103		)	-12.5	%	1,462		1,688		(226		)	-13.4	%
Other	2,709		2,488		221			8.9	%	5,572		5,137		435			8.5	%
Total non-interest expense	$	30,452	$	31,215	$	(763	)	-2.4	%	$	61,778	$	64,791	$	(3,013	)	-4.7	%

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Non-interest expense for the three months ended June 30, 2015decreased$0.8 million compared to the same period in 2014. The decrease was primarily due to a $0.7 milliondecrease in equipment and data processing expense.

Non-interest expense for the six months endedJune 30, 2015decreased$3.0 million compared to the same period in 2014. The decrease was primarily due to a $1.0 milliondecrease in equipment and data processing expense, a $1.0 milliondecrease in professional services expense, a $0.7 milliondecrease in compensation and employee benefits expense, and a $0.7 milliondecrease in occupancy expense.

The efficiency ratio decreased to 58.52% for the three months ended June 30, 2015 from 62.11% for the three months ended June 30, 2014. This compared to an increase in the efficiency ratio to 62.5% for the six months endedJune 30, 2015 from 58.8% for the six months endedJune 30, 2014. The efficiency ratio improved in 2015 due to a decrease in non-interest expense and an increase in net interest income as a result of continued efforts to drive revenue growth while controlling expenses.

Equipment and data processing expense for the three months ended June 30, 2015decreased$0.7 million, or 15.4%, as compared to the same period in 2014, and decreased$1.0 million, or 11.7%, for the six months endedJune 30, 2015 as compared to the same period in 2014. The decrease was primarily driven by a the decrease of core processing system expenses resulting from the sale of the indirect automobile loan portfolio.

Professional services expense for the six months endedJune 30, 2015decreased$1.0 million, or 29.6%, as compared to the same period in 2014. The decrease was largely due to lower audit, tax and legal fees incurred in 2015.

Compensation and employee benefit expense for the six months endedJune 30, 2015decreased$0.7 million, or 2.0%, as compared to the same period in 2014. The decrease was primarily driven by a decrease in employee headcount and a decrease in a liability related to the supplemental executive retirement plan in 2015.

Occupancy expense for the six months endedJune 30, 2015decreased$0.7 million, or 8.6%, as compared to the same period in 2014. The decrease was primarily due to additional expenses incurred in 2014, and related savings in 2015, associated with the consolidation of an operations center, one branch relocation, and the closure of one branch property.

Provision for Income Taxes

	Three Months Ended June 30,						Dollar		Percent		Six Months Ended June 30,						Dollar		Percent
	2015			2014			Change		Change		2015			2014			Change		Change
	(Dollars in Thousands)
Income before provision for income taxes	$	19,674		$	16,765		$	2,909	17.4	%	$	39,083		$	34,108		$	4,975	14.6	%
Provision for income taxes	7,115			6,158			957		15.5	%	14,219			12,537			1,682		13.4	%
Net income, before noncontrolling interest in subsidiary	$	12,559		$	10,607		$	1,952	18.4	%	$	24,864		$	21,571		$	3,293	15.3	%
Effective tax rate	36.2		%	36.7		%	N/A		-0.5	%	36.4		%	36.8		%	N/A		-0.4	%

The Company recorded income tax expense of $7.1 million for the three months ended June 30, 2015, compared to $6.2 million for the three months ended June 30, 2014, representing effective tax rates of 36.2% and 36.7%, respectively. On a year-to-date basis, the Company recorded income tax expense of $14.2 million for the first six months of 2015, compared to $12.5 million for the same period of 2014, representing effective tax rates of 36.4% and 36.8%, respectively. The decrease in the effective tax rate in 2015 is primarily attributable to the recent changes in New York State and New York City tax laws, the Company’s investments in municipal bonds in 2015 and the sale of the indirect automobile loans which resulted in higher state tax apportionment in 2014.

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Liquidity and Capital Resources

Liquidity

Liquidity is defined as the ability to meet current and future financial obligations of a short-term nature. The Company further defines liquidity as the ability to respond to the needs of depositors and borrowers, as well as to earnings enhancement opportunities, in a changing marketplace. Liquidity management is monitored by an Asset/Liability Committee (“ALCO”), consisting of members of management, which is responsible for establishing and monitoring liquidity targets as well as strategies and tactics to meet these targets.

The primary source of funds for the payment of dividends and expenses by the Company is dividends paid to it by its Banks and Brookline Securities Corp. The primary sources of liquidity for the Banks consist of deposit inflows, loan repayments, borrowed funds and maturing investment securities.

Deposits, which are considered the most stable source of liquidity, totaled $4.1 billion at June 30, 2015, and represented 81.5% of total funding (the sum of total deposits and total borrowings), compared to deposits of $4.0 billion, or 77.8% of total funding, at December 31, 2014. Core deposits, which consist of demand checking, NOW, savings and money market accounts, totaled $3.1 billion at June 30, 2015 and represented 74.7% of total deposits, compared to core deposits of $3.0 billion, or 76.1% of total deposits, at December 31, 2014. Additionally, the Company acquired $172.9 million of brokered deposits at June 30, 2015, which represented 4.2% of total deposits compared to $62.0 million or 1.6% of total deposits at December 31, 2014. The Company offers attractive interest rates based on market conditions to increase deposits balances, while managing cost of funds.

Borrowings are used to diversify the Company’s funding mix and to support asset growth. When profitable lending and investment opportunities exist, access to borrowings provides a means to fund the balance sheet. Borrowings totaled $937.6 million at June 30, 2015, representing 18.5% of total funding, compared to $1.1 billion, or 22.2% of total funding, at December 31, 2014. The decrease was due to decreased FHLBB borrowings of $180.6 million using the excess liquidity generated by the sale of the indirect automobile portfolio.

As members of the FHLBB, the Banks have access to both short- and long-term borrowings. At June 30, 2015, the

Company had a $12.0 million committed line of credit with the FHLBB for contingent liquidity. The Banks also have access to funding through retail repurchase agreements, brokered deposits and $119.0 million of uncommitted lines of credit, and may utilize additional sources of funding in the future, including borrowings at the Federal Reserve “discount window,” to supplement its liquidity. At June 30, 2015 and December 31, 2014, the Company’s total borrowing limit from the FHLBB for advances and repurchase agreements was $1.5 billion, based on the level of qualifying collateral available for these borrowings.

In general, the Company seeks to maintain a high degree of liquidity and targets cash, cash equivalents and investment securities available-for-sale with balances between 10% and 30% of total assets. At June 30, 2015, cash, cash equivalents and investment securities available-for-sale totaled $622.4 million, or 10.8% of total assets. This compares to $613.5 million, or 10.6% of total assets, at December 31, 2014.

While management believes that the Company has adequate liquidity to meet its commitments, and to fund the Banks’ lending and investment activities, the availabilities of these funding sources are subject to broad economic conditions and could be restricted in the future. Such restrictions would impact the Company’s immediate liquidity and/or additional liquidity needs.

Off-Balance-Sheet Financial Instruments

The Company is party to off-balance-sheet financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include loan commitments, standby and commercial letters of credit and interest-rate swaps. According to GAAP, these financial instruments are not recorded in the financial statements until they are funded or related fees are incurred or received.

The contract amounts reflect the extent of the involvement the Company has in particular classes of these instruments. Such commitments involve, to varying degrees, elements of credit risk and interest-rate risk in excess of the amount recognized in the consolidated balance sheet. The Company’s exposure to credit loss in the event of non-performance by the counterparty is represented by the contractual amount of the instruments. The Company uses the same policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.

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Financial instruments with off-balance-sheet risk at the dates indicated follow:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to originate loans and leases:
Commercial real estate	$	48,538	$	107,179
Commercial	64,611		102,353
Residential mortgage	11,267		20,520
Unadvanced portion of loans and leases	533,214		629,351
Unused lines of credit:
Home equity	256,468		244,603
Other consumer	13,257		10,876
Other commercial	816		728
Unused letters of credit:
Financial standby letters of credit	17,781		16,762
Performance standby letters of credit	342		3,126
Commercial and similar letters of credit	223		50
Back-to-back interest-rate swaps	224,748		109,362

Capital Resources

At June 30, 2015, the Company and the Banks are each under the primary regulation of, and must comply with, the capital requirements of the FRB. At that date, the Company, Brookline Bank, BankRI and First Ipswich exceeded all regulatory capital requirements and were considered “well-capitalized” under prompt corrective action provisions.

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The Company’s and the Banks’ actual and required capital amounts and ratios are as follows:

		Actual				Minimum Required for Capital Adequacy Purposes				Minimum Required To Be Considered “Well-Capitalized” Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
		(Dollars in Thousands)
At June 30, 2015:
Brookline Bancorp, Inc.
Common equity tier 1 capital ratio	(1)	512,610		10.75	%	214,581		4.50	%	N/A		N/A
Tier 1 leverage capital ratio	(2)	526,085		9.36	%	224,823		4.00	%	N/A		N/A
Tier 1 risk-based capital ratio	(3)	526,085		11.03	%	286,175		6.00	%	N/A		N/A
Total risk-based capital ratio	(4)	657,423		13.78	%	381,668		8.00	%	N/A		N/A
Brookline Bank
Common equity tier 1 capital ratio	(1)	$	354,513	11.85	%	$	134,625	4.50	%	$	187,737	6.50	%
Tier 1 leverage capital ratio	(2)	359,589		10.62	%	135,438		4.00	%	169,298		5.00	%
Tier 1 risk-based capital ratio	(3)	359,589		12.02	%	179,495		6.00	%	239,327		8.00	%
Total risk-based capital ratio	(4)	395,944		13.24	%	239,241		8.00	%	299,051		10.00	%
BankRI
Common equity tier 1 capital ratio	(1)	$	164,410	10.74	%	$	68,887	4.50	%	$	98,557	6.50	%
Tier 1 leverage capital ratio	(2)	164,410		8.69	%	75,678		4.00	%	94,597		5.00	%
Tier 1 risk-based capital ratio	(3)	164,410		10.74	%	91,849		6.00	%	122,466		8.00	%
Total risk-based capital ratio	(4)	183,353		11.98	%	122,439		8.00	%	153,049		10.00	%
First Ipswich
Common equity tier 1 capital ratio	(1)	$	31,728	13.20	%	$	10,816	4.50	%	$	15,380	6.50	%
Tier 1 leverage capital ratio	(2)	31,728		9.16	%	13,855		4.00	%	17,319		5.00	%
Tier 1 risk-based capital ratio	(3)	31,728		13.20	%	14,422		6.00	%	19,229		8.00	%
Total risk-based capital ratio	(4)	34,194		14.23	%	19,224		8.00	%	24,030		10.00	%
At December 31, 2014:
Brookline Bancorp, Inc.
Tier 1 leverage capital ratio	(2)	$	504,964	9.01	%	$	224,179	4.00	%	N/A		N/A
Tier 1 risk-based capital ratio	(3)	504,964		10.55	%	191,456		4.00	%	N/A		N/A
Total risk-based capital ratio	(4)	633,421		13.24	%	382,732		8.00	%	N/A		N/A
Brookline Bank
Tier 1 leverage capital ratio	(2)	$	336,513	9.60	%	$	140,214	4.00	%	$	175,267	5.00	%
Tier 1 risk-based capital ratio	(3)	336,513		10.72	%	125,565		4.00	%	188,347		6.00	%
Total risk-based capital ratio	(4)	373,312		11.90	%	250,966		8.00	%	313,708		10.00	%
BankRI
Tier 1 leverage capital ratio	(2)	$	150,403	8.43	%	$	71,366	4.00	%	$	89,207	5.00	%
Tier 1 risk-based capital ratio	(3)	150,403		10.70	%	56,225		4.00	%	84,338		6.00	%
Total risk-based capital ratio	(4)	166,135		11.82	%	112,443		8.00	%	140,554		10.00	%
First Ipswich
Tier 1 leverage capital ratio	(2)	$	29,962	9.27	%	$	12,929	4.00	%	$	16,161	5.00	%
Tier 1 risk-based capital ratio	(3)	29,962		12.40	%	9,665		4.00	%	14,498		6.00	%
Total risk-based capital ratio	(4)	32,375		13.40	%	19,328		8.00	%	24,160		10.00	%

1. Common equity tier 1 capital ratio is calculated by dividing common equity Tier 1 capital by risk-weighted assets. The ratio was established as part of the implementation of Basel III, effective January 1, 2015.

2. Tier 1 leverage capital ratio is calculated by dividing Tier 1 capital by average assets.

3. Tier 1 risk-based capital ratio is calculated by dividing Tier 1 capital by risk-weighted assets.

4. Total risk-based capital ratio is calculated by dividing total capital by risk-weighted assets.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

Market Risk

Market risk is the risk that the market value or estimated fair value of the Company’s assets, liabilities and derivative financial instruments will decline as a result of changes in interest rates or financial market volatility, or that the Company’s net income will be significantly reduced by interest-rate changes.

Interest-Rate Risk

The principal market risk facing the Company is interest-rate risk, which can come in a variety of forms, including repricing risk, yield-curve risk, basis risk and prepayment risk. Repricing risk exists when the change in the average yield of either interest-earning assets or interest-bearing liabilities is more sensitive than the other to changes in market interest rates. Such a change in sensitivity could reflect a number of possible mismatches in the repricing opportunities of the Company’s assets and liabilities. Yield-curve risk reflects the possibility that the changes in the shape of the yield curve could have different effects on the Company’s assets and liabilities. Basis risk exists when different parts of the balance sheet are subject to varying base rates reflecting the possibility that the spread from those base rates will deviate. Prepayment risk is associated with financial instruments with an option to prepay before the stated maturity, often a disadvantage to the person selling the option; this risk is most often associated with the prepayment of loans, callable investments and callable borrowings.

Asset/Liability Management

Market risk and interest-rate risk management are governed by the Company’s Asset/Liability Committee (“ALCO”). The ALCO establishes exposure limits that define the Company’s tolerance for interest-rate risk. The ALCO and Treasury Group measure and manage the composition of the balance sheet over a range of possible changes in interest rates while remaining responsive to market demand for loan and deposit products. The ALCO monitors current exposures versus limits and reports results to the Board of Directors. The policy limits and guidelines serve as benchmarks for measuring interest-rate risk and for providing a framework for evaluation and interest-rate risk-management decision-making. The Company measures its interest-rate risk by using an asset/liability simulation model. The model considers several factors to determine the Company’s potential exposure to interest-rate risk, including measurement of repricing gaps, duration, convexity, value-at-risk, market value of portfolio equity under assumed changes in the level of interest rates, the shape of yield curves and general market volatility.

Management controls the Company’s interest-rate exposure using several strategies, which include adjusting the maturities of securities in the Company’s investment portfolio, limiting or expanding the terms of loans originated, limiting fixed-rate deposits with terms of more than five years and adjusting maturities of FHLBB advances. The Company limits this risk by restricting the types of MBSs it invests in to those with limited average life changes under certain interest-rate-shock scenarios, or securities with embedded prepayment penalties. The Company also places limits on holdings of fixed-rate mortgage loans with maturities greater than five years. The Company also may use derivative instruments, principally interest-rate swaps, to manage its interest-rate risk; however, the Company had no derivative fair value hedges or derivative cash flows at June 30, 2015 or December 31, 2014. See Note 10, “Derivatives and Hedging Activities,” to the unaudited consolidated financial statements.

Measuring Interest-Rate Risk

As noted above, interest-rate risk can be measured by analyzing the extent to which the repricing of assets and liabilities are mismatched to create an interest-rate sensitivity gap. An asset or liability is said to be interest-rate sensitive within a specific period if it will mature or reprice within that period. The interest-rate sensitivity gap is defined as the difference between the amount of interest-earning assets maturing or repricing within a specific time period and the amount of interest-bearing liabilities maturing or repricing within that same time period. A gap is considered positive when the amount of interest-rate-sensitive assets exceeds the amount of interest-rate-sensitive liabilities. A gap is considered negative when the amount of interest-rate-sensitive liabilities exceeds the amount of interest-rate-sensitive assets. During a period of falling interest rates, therefore, a positive gap would tend to adversely affect net interest income. Conversely, during a period of rising interest rates, a positive gap position would tend to result in an increase in net interest income.

The Company's interest-rate risk position is measured using both income simulation and interest-rate sensitivity "gap" analysis. Income simulation is the primary tool for measuring the interest-rate risk inherent in the Company’s balance sheet at a given point in time by showing the effect on net interest income, over a twelve-month period, of a variety of interest-rate shocks. These simulations take into account repricing, maturity and prepayment characteristics of individual products. The ALCO reviews simulation results to determine whether the exposure resulting from changes in market interest rates remains

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within established tolerance levels over a twelve-month horizon, and develops appropriate strategies to manage this exposure. The Company’s interest-rate risk analysis remains modestly asset-sensitive at June 30, 2015.

As of June 30, 2015, net interest income simulation indicated that the Company’s exposure to changing interest rates was within tolerance. The ALCO reviews the methodology utilized for calculating interest-rate risk exposure and may periodically adopt modifications to this methodology. The following table presents the estimated impact of interest-rate changes on the Company’s estimated net interest income over the twelve-month periods indicated:

	Estimated Exposure to Net Interest Income over Twelve-Month Horizon Beginning
	June 30, 2015				December 31, 2014
Gradual Change in Interest Rate Levels	Dollar Change		Percent Change		Dollar Change		Percent Change
	(Dollars in Thousands)
Up 300 basis points	2,500		1.3	%	1,882		1.0	%
Up 200 basis points	1,744		0.9	%	1,327		0.7	%
Up 100 basis points	829		0.4	%	693		0.4	%
Down 100 basis points	(2,724	)	(1.4	)%	(2,828	)	(1.5	)%

The estimated impact of a 300 basis points increase in market interest rates on the Company's estimated net interest income over a twelve-month horizon was a positive 1.31% at June 30, 2015 compared to a positive 1.03% at December 31, 2014. The increase in asset sensitivity was due to the sale of the indirect auto portfolio which was used to paydown maturing FHLBB borrowings.

The Company also uses interest-rate sensitivity “gap” analysis to provide a more general overview of its interest-rate risk profile. The interest-rate sensitivity gap is defined as the difference between interest-earning assets and interest-bearing

liabilities maturing or repricing within a given time period. At June 30, 2015, the Company’s one-year cumulative gap was a negative$336.2 million, or 6.26% of total interest-earning assets, compared with a negative$371.2 million, or 6.88% of total interest-earning assets, at December 31, 2014.

The assumptions used in the Company's interest-rate sensitivity simulation discussed above are inherently uncertain and, as a result, the simulations cannot precisely measure net interest income or precisely predict the impact of changes in interest rates. For additional discussion on interest-rate risk see Item 7A, “Quantitative and Qualitative Disclosures about Market Risk” of the Company’s 2014 Annual Report on Form 10-K.

Economic Value of Equity ("EVE") at Risk Simulation is conducted in tandem with net interest income simulations, to ascertain a longer term view of the Company’s interest-rate risk position by capturing longer-term repricing risk and options risk embedded in the balance sheet. It measures the sensitivity of the economic value of equity to changes in interest rates. The EVE at Risk Simulation values only the current balance sheet and does not incorporate growth assumptions. As with the net interest income simulation, this simulation captures product characteristics such as loan resets, repricing terms, maturity dates, and rate caps and floors. Key assumptions include loan prepayment speeds, deposit pricing elasticity and non-maturity deposit attrition rates. These assumptions can have significant impacts on valuation results as the assumptions remain in effect for the entire life of each asset and liability. The Company conducts non-maturity deposit behavior studies on a periodic basis to support deposit assumptions used in the valuation process. All key assumptions are subject to a periodic review.

EVE at Risk Simulation is calculated by estimating the net present value of all future cash flows from existing assets and liabilities using current interest rates as well as parallel shocks to the current interest-rate environment. The following table sets forth the estimated percentage change in the Company’s EVE at Risk Simulation, assuming various shifts in interest rates. Given the interest rate environment at June 30, 2015, simulations for interest rate declines of more than 100 basis points were not deemed to be meaningful.

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	Estimated Percent Change in EVE at Risk
Parallel Shock in Interest Rate Levels	At June 30, 2015		At December 31, 2014
Up 300%	(0.5	)%	(2.6	)%
Up 200%	(1.0	)%	(2.5	)%
Up 100%	(0.4	)%	(1.0	)%
Down 100%	(5.1	)%	(5.4	)%

Item 4. Controls and Procedures

Controls and Procedures

Under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer), the Company has evaluated the effectiveness of its 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 Chief Executive Officer and Chief Financial Officer considered that, as of the end of the period covered by this report, the Company’s disclosure controls and procedures were effective to ensure that information required to be disclosed in the reports that the Company files or submits under the Exchange Act is (i) recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms and (ii) accumulated and communicated to the Company’s management, including its Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

There has been no change in the Company’s internal control over financial reporting identified in connection with the quarterly evaluation that occurred during the Company’s last fiscal quarter that has materially and detrimentally affected, or is reasonably likely to materially and detrimentally affect, the Company’s internal controls over financial reporting.

The Company’s management is responsible for establishing and maintaining adequate internal control over financial reporting as such term is defined in Exchange Act Rule 13a -15(f). The Company’s internal control system was designed to provide reasonable assurance to its management and the Board of Directors regarding the preparation and fair presentation of published financial statements. All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. The Company’s management assessed the effectiveness of its internal control over financial reporting as of the end of the period covered by this report.

Management’s Report on Internal Control Over Financial Reporting as of December 31, 2014 and the related Report of Independent Registered Public Accounting Firm thereon appear on pages F-1 and F-2 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

90

PART II — OTHER INFORMATION

Item 1. Legal Proceedings

There are no material pending legal proceedings other than those that arise in the normal course. In the opinion of management, after consulting with legal counsel, the consolidated financial position and results of operations of the Company are not expected to be affected materially by the outcome of such proceedings. 

Item 1A. Risk Factors

There have been no material changes to the risk factors disclosed in Item 1A of the Company’s Form 10-K for the year ended December 31, 2014.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

a)        Not applicable.

b)        Not applicable.

c)         None.

Item 3. Defaults Upon Senior Securities

a)        None.

b)        None.

Item 4. Mine Safety Disclosures

Not applicable. 

Item 5. Other Information

None.

Item 6. Exhibits

Exhibits

Exhibit 31.1*	Certification of Chief Executive Officer
Exhibit 31.2*	Certification of Chief Financial Officer
Exhibit 32.1**	Section 1350 Certification of Chief Executive Officer
Exhibit 32.2**	Section 1350 Certification of Chief Financial Officer
Exhibit 101	The following materials from Brookline Bancorp, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2015, formatted in XBRL (eXtensible Business Reporting Language): (i) Unaudited Consolidated Balance Sheets as of June 30, 2015 and December 31, 2014; (ii) Unaudited Consolidated Statements of Income for the three months and six months ended June 30, 2015 and 2014; (iii) Unaudited Consolidated Statements of Comprehensive Income for the three months and six months ended June 30, 2015 and 2014; (iv) Unaudited Consolidated Statements of Changes in Equity for the six months ended June 30, 2015 and 2014; (v) Unaudited Consolidated Statements of Cash Flows for the six months ended June 30, 2015 and 2014; and (vi) Notes to Unaudited Consolidated Financial Statements at and for the six months ended June 30, 2015 and 2014.

*	Filed herewith.
**	Furnished herewith.

SIGNATURES

Pursuant to the requirements 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.

	BROOKLINE BANCORP, INC.
Date: August 7, 2015	By:	/s/ Paul A. Perrault
		Paul A. Perrault
		President and Chief Executive Officer
		(Principal Executive Officer)
Date: August 7, 2015	By:	/s/ Carl M. Carlson
		Carl M. Carlson
		Chief Financial Officer and Treasurer
		(Principal Financial Officer)

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

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

I, Paul A. Perrault, President and Chief Executive Officer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Brookline 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 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.

August 7, 2015	/s/ Paul A. Perrault
Date	Paul A. Perrault
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

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

I, Carl M. Carlson, Chief Financial Officer and Treasurer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Brookline 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 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.

August 7, 2015	/s/ Carl M. Carlson
Date	Carl M. Carlson
	Chief Financial Officer and Treasurer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

OF 2002, 18 U.S.C. SECTION 1350

The undersigned, Paul A. Perrault, is the President and Chief Executive Officer of Brookline Bancorp, Inc. (the “Company”).

This statement is being furnished in connection with the filing by the Company of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2015 (the “Report”).

By execution of this statement, I certify that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods covered by the Report.

This statement is authorized to be attached as an exhibit to the Report so that this statement will accompany the Report at such time as the Report is filed with the Securities and Exchange Commission pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934, as amended.

August 7, 2015	/s/ Paul A. Perrault
Date	Paul A. Perrault
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-32.2

Exhibit 32.2

STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

OF 2002, 18 U.S.C. SECTION 1350

The undersigned, Carl M. Carlson, is the Chief Accounting Officer of Brookline Bancorp, Inc. (the “Company”).

This statement is being furnished in connection with the filing by the Company of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2015 (the “Report”).

By execution of this statement, I certify that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods covered by the Report.

This statement is authorized to be attached as an exhibit to the Report so that this statement will accompany the Report at such time as the Report is filed with the Securities and Exchange Commission pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934, as amended.

August 7, 2015	/s/ Carl M. Carlson
Date	Carl M. Carlson
	Chief Financial Officer and Treasurer
	(Principal Financial Officer)

XML

Investment Securities (Details 5) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Available for Sale, Amortized Cost
Within 1 year	$ 6,151	$ 3,057
After 1 year through 5 years	49,500	55,631
After 5 years through 10 years	90,390	103,268
Over 10 years	386,424	390,685
Total	532,465	552,641
Available for Sale, Estimated Fair Value
Within 1 year	6,174	3,081
After 1 year through 5 years	50,318	56,586
After 5 years through 10 years	90,955	104,208
Over 10 years	382,056	385,913
Total	$ 529,503	$ 549,788
Available for Sale, Weighted Average Rate
Within 1 year (as a percent)	2.35%	3.00%
After 1 year through 5 years (as a percent)	2.50%	2.48%
After 5 years through 10 years (as a percent)	1.98%	2.00%
Over 10 years (as a percent)	1.96%	1.91%
Total (as a percent)	2.02%	1.99%
Held-to-maturity, Amortized Cost
Within 1 year	$ 500	$ 0
After 1 year through 5 years	11,336	500
After 5 years through 10 years	27,682	0
Over 10 years	20,993	0
Total	60,511	500
Held-to-maturity, Estimated Fair Value
Within 1 year	500	0
After 1 year through 5 years	11,312	500
After 5 years through 10 years	27,406	0
Over 10 years	20,775	0
Total	$ 59,993	$ 500
Held-to-maturity, Weighted Average Rate
Within 1 year (as a percent)	1.30%	0.00%
After 1 year through 5 years (as a percent)	1.58%	1.30%
After 5 years through 10 years (as a percent)	2.15%	0.00%
Over 10 years (as a percent)	1.65%	0.00%
Total (as a percent)	1.86%	1.30%
Estimated fair value of debt securities have right to call or prepay the obligations	$ 35,400	$ 16,100
Estimated fair value of debt securities have right to call or prepay the obligations, schedule maturities of 1-5 years	9,500	5,000
Estimated fair value of debt securities have right to call or prepay the obligations, schedule maturities of 6-10 years	$ 25,900	9,900
Estimated fair value of debt securities have right to call or prepay the obligations, scheduled maturities after ten years		$ 1,200

XML

Investments in Qualified Affordable Housing Projects - Further Information Regarding Investments in Affordable Housing Projects (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Investments in Affordable Housing Projects [Abstract]
Investments in affordable housing projects included in other assets	$ 10,400	$ 10,400		$ 10,313
Unfunded commitments related to affordable housing projects included in other liabilities	1,982	1,982		$ 2,608
Investments in affordable housing projects tax credits included in other liabilities		794	$ 1,432
Investments in affordable housing projects tax benefits included in other liabilities		328	$ 669
Investment amortization included in pretax income	393	803
Amount recognized as income tax benefit	$ 151	$ 302

XML

Allowance for Loan and Lease Losses (Details 5) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Impaired Loans and Leases
Recorded investment	$ 56,669		$ 56,669		$ 48,657
Unpaid principal balance	56,640		56,640		48,633
Related allowance	2,778		2,778		1,163
Average recorded investment	57,656	$ 53,402	57,867	$ 49,083
Interest income recognized, Total	311	363	623	569
Recorded investment in loans and leases by portfolio segment
Total, Allowance	56,398		56,398		53,659
Total Loans and Leases	4,729,581		4,729,581		4,822,607
Originated
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	23,643		23,643		19,246
Recorded investment, loans with related allowance recorded	10,712		10,712		6,314
Recorded investment	34,355		34,355		25,560
Recorded investment, nonaccrual loans	16,300		16,300		7,100
Unpaid principal balance with no related allowance recorded	23,607		23,607		19,217
Unpaid principal balance with related allowance recorded	10,703		10,703		6,306
Unpaid principal balance	34,310		34,310		25,523
Related allowance	2,493		2,493		886
Average recorded investment with no related allowance recorded	24,112	6,786	24,175	9,198
Average recorded investment with related allowance recorded	10,754	10,392	10,448	7,255
Average recorded investment	34,866	17,178	34,623	16,453
Interest income recognized with no related allowance recorded	187	74	377	131
Interest income recognized with related allowance recorded	52	61	105	85
Interest income recognized, Total	239	135	482	216
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	2,493		2,493		886
Loans and Leases Collectively Evaluated for Impairment, Allowance	51,250		51,250		49,925
Total, Allowance	53,743		53,743		50,811
Loans and Leases Individually Evaluated for Impairment, Portfolio	34,355		34,355		25,560
Loans and Leases Collectively Evaluated for Impairment, Portfolio	4,186,198		4,186,198		4,206,393
Total Loans and Leases	4,220,553		4,220,553		4,231,953
Acquired
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	21,350		21,350		22,150
Recorded investment, loans with related allowance recorded	964		964		947
Recorded investment	22,314		22,314		23,097
Recorded investment, nonaccrual loans	5,500		5,500		4,600
Unpaid principal balance with no related allowance recorded	21,366		21,366		22,163
Unpaid principal balance with related allowance recorded	964		964		947
Unpaid principal balance	22,330		22,330		23,110
Related allowance	285		285		277
Average recorded investment with no related allowance recorded	21,822	31,984	22,022	28,027
Average recorded investment with related allowance recorded	968	4,240	1,222	4,603
Average recorded investment	22,790	36,224	23,244	32,630
Interest income recognized with no related allowance recorded	69	210	136	297
Interest income recognized with related allowance recorded	3	18	5	56
Interest income recognized, Total	72	228	141	353
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	284		284		185
Loans and Leases Collectively Evaluated for Impairment, Allowance	880		880		872
Total, Allowance	2,655		2,655		2,848
Loans and Leases Individually Evaluated for Impairment, Portfolio	8,642		8,642		7,646
Loans and Leases Collectively Evaluated for Impairment, Portfolio	220,608		220,608		270,618
Total Loans and Leases	509,028		509,028		590,654
Acquired | Receivables Acquired with Deteriorated Credit Quality
Recorded investment in loans and leases by portfolio segment
Total, Allowance	1,491		1,491		1,791
Total Loans and Leases	279,778		279,778		312,390
Commercial real estate loans
Recorded investment in loans and leases by portfolio segment
Total, Allowance	29,216		29,216		29,594
Total Loans and Leases	2,513,358		2,513,358		2,467,801
Commercial real estate loans | Originated
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	5,198		5,198		2,751
Recorded investment, loans with related allowance recorded	4,087		4,087		4,119
Unpaid principal balance with no related allowance recorded	5,193		5,193		2,748
Unpaid principal balance with related allowance recorded	4,087		4,087		4,119
Related allowance	88		88		108
Average recorded investment with no related allowance recorded	5,204	947	5,066	2,422
Average recorded investment with related allowance recorded	4,092	3,010	4,100	1,587
Interest income recognized with no related allowance recorded	21	12	44	48
Interest income recognized with related allowance recorded	49	22	99	22
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	88		88		108
Loans and Leases Collectively Evaluated for Impairment, Allowance	27,471		27,471		27,457
Total, Allowance	27,559		27,559		27,565
Loans and Leases Individually Evaluated for Impairment, Portfolio	9,285		9,285		6,870
Loans and Leases Collectively Evaluated for Impairment, Portfolio	2,224,847		2,224,847		2,141,039
Total Loans and Leases	2,234,132		2,234,132		2,147,909
Commercial real estate loans | Acquired
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	8,263		8,263		9,413
Recorded investment, loans with related allowance recorded	0		0		244
Unpaid principal balance with no related allowance recorded	8,264		8,264		9,428
Unpaid principal balance with related allowance recorded	0		0		244
Related allowance	0		0		22
Average recorded investment with no related allowance recorded	8,596	20,402	9,462	13,990
Average recorded investment with related allowance recorded	0	1,522	122	2,971
Interest income recognized with no related allowance recorded	38	182	75	228
Interest income recognized with related allowance recorded	0	3	0	40
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Allowance	620		620		648
Total, Allowance	1,657		1,657		2,029
Loans and Leases Individually Evaluated for Impairment, Portfolio	605		605		626
Loans and Leases Collectively Evaluated for Impairment, Portfolio	79,356		79,356		97,141
Total Loans and Leases	279,226		279,226		319,892
Commercial real estate loans | Acquired | Receivables Acquired with Deteriorated Credit Quality
Recorded investment in loans and leases by portfolio segment
Total, Allowance	1,037		1,037		1,381
Total Loans and Leases	199,265		199,265		222,125
Commercial
Recorded investment in loans and leases by portfolio segment
Total, Allowance	20,229		20,229		15,957
Total Loans and Leases	1,282,180		1,282,180		1,167,094
Commercial | Originated
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	14,494		14,494		13,440
Recorded investment, loans with related allowance recorded	6,462		6,462		2,019
Unpaid principal balance with no related allowance recorded	14,468		14,468		13,421
Unpaid principal balance with related allowance recorded	6,454		6,454		2,011
Related allowance	2,405		2,405		768
Average recorded investment with no related allowance recorded	14,942	5,711	15,086	4,796
Average recorded investment with related allowance recorded	6,497	3,800	6,180	3,728
Interest income recognized with no related allowance recorded	151	62	303	70
Interest income recognized with related allowance recorded	3	24	6	48
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	2,405		2,405		768
Loans and Leases Collectively Evaluated for Impairment, Allowance	17,291		17,291		14,631
Total, Allowance	19,696		19,696		15,399
Loans and Leases Individually Evaluated for Impairment, Portfolio	20,956		20,956		15,459
Loans and Leases Collectively Evaluated for Impairment, Portfolio	1,220,367		1,220,367		1,086,360
Total Loans and Leases	1,241,323		1,241,323		1,101,819
Commercial | Acquired
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	4,824		4,824		6,049
Recorded investment, loans with related allowance recorded	598		598		478
Unpaid principal balance with no related allowance recorded	4,824		4,824		6,047
Unpaid principal balance with related allowance recorded	598		598		478
Related allowance	238		238		214
Average recorded investment with no related allowance recorded	4,931	6,775	4,717	7,498
Average recorded investment with related allowance recorded	598	1,948	735	1,247
Interest income recognized with no related allowance recorded	17	23	32	59
Interest income recognized with related allowance recorded	0	14	0	15
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	238		238		144
Loans and Leases Collectively Evaluated for Impairment, Allowance	199		199		222
Total, Allowance	533		533		558
Loans and Leases Individually Evaluated for Impairment, Portfolio	4,667		4,667		4,458
Loans and Leases Collectively Evaluated for Impairment, Portfolio	22,915		22,915		38,504
Total Loans and Leases	40,857		40,857		65,275
Commercial | Acquired | Receivables Acquired with Deteriorated Credit Quality
Recorded investment in loans and leases by portfolio segment
Total, Allowance	96		96		192
Total Loans and Leases	13,275		13,275		22,313
Indirect automobile
Recorded investment in loans and leases by portfolio segment
Total, Allowance	381		381		2,331
Total Loans and Leases	19,377		19,377		316,987
Indirect automobile | Originated
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Allowance	381		381		2,331
Total, Allowance	381		381		2,331
Loans and Leases Individually Evaluated for Impairment, Portfolio	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Portfolio	19,377		19,377		316,987
Total Loans and Leases	19,377		19,377		316,987
Indirect automobile | Acquired
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Allowance	0		0		0
Total, Allowance	0		0		0
Loans and Leases Individually Evaluated for Impairment, Portfolio	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Portfolio	0		0		0
Total Loans and Leases	0		0		0
Indirect automobile | Acquired | Receivables Acquired with Deteriorated Credit Quality
Recorded investment in loans and leases by portfolio segment
Total, Allowance	0		0		0
Total Loans and Leases	0		0		0
Consumer loans
Recorded investment in loans and leases by portfolio segment
Total, Allowance	4,012		4,012		3,359
Total Loans and Leases	914,666		914,666		870,725
Consumer loans | Originated
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	3,951		3,951		3,055
Recorded investment, loans with related allowance recorded	163		163		176
Unpaid principal balance with no related allowance recorded	3,946		3,946		3,048
Unpaid principal balance with related allowance recorded	162		162		176
Related allowance	0		0		10
Average recorded investment with no related allowance recorded	3,966	128	4,023	1,980
Average recorded investment with related allowance recorded	165	3,582	168	1,940
Interest income recognized with no related allowance recorded	15	0	30	13
Interest income recognized with related allowance recorded	0	15	0	15
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	0		0		10
Loans and Leases Collectively Evaluated for Impairment, Allowance	3,547		3,547		3,088
Total, Allowance	3,547		3,547		3,098
Loans and Leases Individually Evaluated for Impairment, Portfolio	4,114		4,114		3,231
Loans and Leases Collectively Evaluated for Impairment, Portfolio	721,607		721,607		662,007
Total Loans and Leases	725,721		725,721		665,238
Consumer loans | Acquired
Impaired Loans and Leases
Recorded investment, loans with no related allowance recorded	8,263		8,263		6,688
Recorded investment, loans with related allowance recorded	366		366		225
Unpaid principal balance with no related allowance recorded	8,278		8,278		6,688
Unpaid principal balance with related allowance recorded	366		366		225
Related allowance	47		47		41
Average recorded investment with no related allowance recorded	8,295	4,807	7,843	6,539
Average recorded investment with related allowance recorded	370	770	365	385
Interest income recognized with no related allowance recorded	14	5	29	10
Interest income recognized with related allowance recorded	3	$ 1	5	$ 1
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	46		46		41
Loans and Leases Collectively Evaluated for Impairment, Allowance	61		61		2
Total, Allowance	465		465		261
Loans and Leases Individually Evaluated for Impairment, Portfolio	3,370		3,370		2,562
Loans and Leases Collectively Evaluated for Impairment, Portfolio	118,337		118,337		134,973
Total Loans and Leases	188,945		188,945		205,487
Consumer loans | Acquired | Receivables Acquired with Deteriorated Credit Quality
Recorded investment in loans and leases by portfolio segment
Total, Allowance	358		358		218
Total Loans and Leases	67,238		67,238		67,952
Unallocated
Recorded investment in loans and leases by portfolio segment
Total, Allowance	2,560		2,560		2,418
Total Loans and Leases	0		0		0
Unallocated | Originated
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Allowance	2,560		2,560		2,418
Total, Allowance	2,560		2,560		2,418
Loans and Leases Individually Evaluated for Impairment, Portfolio	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Portfolio	0		0		0
Total Loans and Leases	0		0		0
Unallocated | Acquired
Recorded investment in loans and leases by portfolio segment
Loans and Leases Individually Evaluated for Impairment, Allowance	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Allowance	0		0		0
Total, Allowance	0		0		0
Loans and Leases Individually Evaluated for Impairment, Portfolio	0		0		0
Loans and Leases Collectively Evaluated for Impairment, Portfolio	0		0		0
Total Loans and Leases	0		0		0
Unallocated | Acquired | Receivables Acquired with Deteriorated Credit Quality
Recorded investment in loans and leases by portfolio segment
Total, Allowance	0		0		0
Total Loans and Leases	$ 0		$ 0		$ 0

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Investments in Qualified Affordable Housing Projects - Prior Period Adjustments (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	[1]	$ 80,111		$ 80,111		$ 80,479
Retained earnings	[1]	96,128		96,128		84,860
Provision for income taxes	[1]	7,115	$ 6,158	14,219	$ 12,537
Net income	[1]	$ 11,865	$ 10,131	$ 23,568	$ 20,673
EPS, Basic (in dollars per share)	[1]	$ 0.17	$ 0.15	$ 0.34	$ 0.30
Accounting Standards Update 2014-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets						80,479
Retained earnings						84,860
Loss from investments in affordable housing projects, as reported			$ 0		$ 0
Provision for income taxes			6,158		12,537
Net income			$ 10,131		$ 20,673
EPS, Basic (in dollars per share)			$ 0.15		$ 0.30
Effective tax rate			36.73%		36.76%
Accounting Standards Update 2014-01 | Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets						79,411
Retained earnings						83,792
Loss from investments in affordable housing projects, as reported			$ 539		$ 1,043
Provision for income taxes			5,774		11,769
Net income			$ 9,976		$ 20,398
EPS, Basic (in dollars per share)			$ 0.14		$ 0.29
Effective tax rate			35.58%		35.59%
Accounting Standards Update 2014-01 | Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets						1,068
Retained earnings						$ 1,068
Loss from investments in affordable housing projects, as reported			$ (539)		$ (1,043)
Provision for income taxes			384		768
Net income			$ 155		$ 275
EPS, Basic (in dollars per share)			$ 0.01		$ 0.01
Effective tax rate			1.15%		1.17%

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Allowance for Loan and Lease Losses (Details 3) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Age analysis of past due loans
Past due Total	$ 39,105	$ 34,920
Current	4,690,476	4,787,687
Total Loans and Leases	4,729,581	4,822,607
Loans and leases past due greater than 90 days and accruing	10,220	6,008
Nonaccrual loans and leases	23,462	13,714
Originated
Age analysis of past due loans
Past due Total	20,391	16,823
Current	4,200,162	4,215,130
Total Loans and Leases	4,220,553	4,231,953
Loans and leases past due greater than 90 days and accruing	210	2
Nonaccrual loans and leases	17,987	9,132
Acquired
Age analysis of past due loans
Past due Total	18,714	18,097
Current	490,314	572,557
Total Loans and Leases	509,028	590,654
Loans and leases past due greater than 90 days and accruing	10,010	6,006
Nonaccrual loans and leases	5,475	4,582
Commercial real estate loans
Age analysis of past due loans
Total Loans and Leases	2,513,358	2,467,801
Commercial real estate loans | Originated
Age analysis of past due loans
Past due Total	4,145	2,592
Current	2,229,987	2,145,317
Total Loans and Leases	2,234,132	2,147,909
Loans and leases past due greater than 90 days and accruing	208	0
Nonaccrual loans and leases	3,483	1,009
Commercial real estate loans | Acquired
Age analysis of past due loans
Past due Total	8,510	8,368
Current	270,716	311,524
Total Loans and Leases	279,226	319,892
Loans and leases past due greater than 90 days and accruing	6,800	2,750
Nonaccrual loans and leases	0	0
Commercial real estate mortgage
Age analysis of past due loans
Total Loans and Leases	1,758,281	1,680,082
Commercial real estate mortgage | Originated
Age analysis of past due loans
Past due Total	3,836	2,207
Current	1,526,929	1,423,414
Total Loans and Leases	1,530,765	1,425,621
Loans and leases past due greater than 90 days and accruing	208	0
Nonaccrual loans and leases	3,174	1,009
Commercial real estate mortgage | Acquired
Age analysis of past due loans
Past due Total	6,119	7,081
Current	221,397	247,380
Total Loans and Leases	227,516	254,461
Loans and leases past due greater than 90 days and accruing	4,409	2,387
Nonaccrual loans and leases	0	0
Multi-family mortgage
Age analysis of past due loans
Total Loans and Leases	627,571	639,706
Multi-family mortgage | Originated
Age analysis of past due loans
Past due Total	309	385
Current	576,083	575,829
Total Loans and Leases	576,392	576,214
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	309	0
Multi-family mortgage | Acquired
Age analysis of past due loans
Past due Total	2,391	1,287
Current	48,788	62,205
Total Loans and Leases	51,179	63,492
Loans and leases past due greater than 90 days and accruing	2,391	363
Nonaccrual loans and leases	0	0
Construction
Age analysis of past due loans
Total Loans and Leases	127,506	148,013
Construction | Originated
Age analysis of past due loans
Past due Total	0	0
Current	126,975	146,074
Total Loans and Leases	126,975	146,074
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	0	0
Construction | Acquired
Age analysis of past due loans
Past due Total	0	0
Current	531	1,939
Total Loans and Leases	531	1,939
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	0	0
Commercial loans
Age analysis of past due loans
Total Loans and Leases	1,282,180	1,167,094
Commercial loans | Originated
Age analysis of past due loans
Past due Total	13,505	7,698
Current	1,227,818	1,094,121
Total Loans and Leases	1,241,323	1,101,819
Loans and leases past due greater than 90 days and accruing	1	2
Nonaccrual loans and leases	11,635	5,936
Commercial loans | Acquired
Age analysis of past due loans
Past due Total	4,578	4,353
Current	36,279	60,922
Total Loans and Leases	40,857	65,275
Loans and leases past due greater than 90 days and accruing	343	697
Nonaccrual loans and leases	3,320	2,483
Commercial
Age analysis of past due loans
Total Loans and Leases	578,548	514,077
Commercial | Originated
Age analysis of past due loans
Past due Total	9,174	3,133
Current	539,553	459,597
Total Loans and Leases	548,727	462,730
Loans and leases past due greater than 90 days and accruing	0	2
Nonaccrual loans and leases	8,996	2,722
Commercial | Acquired
Age analysis of past due loans
Past due Total	4,552	4,233
Current	25,269	47,114
Total Loans and Leases	29,821	51,347
Loans and leases past due greater than 90 days and accruing	343	624
Nonaccrual loans and leases	3,320	2,474
Equipment financing
Age analysis of past due loans
Total Loans and Leases	648,447	601,424
Equipment financing | Originated
Age analysis of past due loans
Past due Total	4,331	4,064
Current	633,080	583,432
Total Loans and Leases	637,411	587,496
Loans and leases past due greater than 90 days and accruing	1	0
Nonaccrual loans and leases	2,639	3,214
Equipment financing | Acquired
Age analysis of past due loans
Past due Total	26	120
Current	11,010	13,808
Total Loans and Leases	11,036	13,928
Loans and leases past due greater than 90 days and accruing	0	73
Nonaccrual loans and leases	0	9
Condominium association
Age analysis of past due loans
Total Loans and Leases	55,185	51,593
Condominium association | Originated
Age analysis of past due loans
Past due Total	0	501
Current	55,185	51,092
Total Loans and Leases	55,185	51,593
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	0	0
Condominium association | Acquired
Age analysis of past due loans
Total Loans and Leases	0	0
Indirect automobile
Age analysis of past due loans
Total Loans and Leases	19,377	316,987
Indirect automobile | Originated
Age analysis of past due loans
Past due Total	2,045	5,724
Current	17,332	311,263
Total Loans and Leases	19,377	316,987
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	417	645
Indirect automobile | Acquired
Age analysis of past due loans
Total Loans and Leases	0	0
Consumer loans
Age analysis of past due loans
Total Loans and Leases	914,666	870,725
Consumer loans | Originated
Age analysis of past due loans
Past due Total	696	809
Current	725,025	664,429
Total Loans and Leases	725,721	665,238
Loans and leases past due greater than 90 days and accruing	1	0
Nonaccrual loans and leases	2,452	1,542
Consumer loans | Acquired
Age analysis of past due loans
Past due Total	5,626	5,376
Current	183,319	200,111
Total Loans and Leases	188,945	205,487
Loans and leases past due greater than 90 days and accruing	2,867	2,559
Nonaccrual loans and leases	2,155	2,099
Residential mortgage
Age analysis of past due loans
Total Loans and Leases	603,073	571,920
Residential mortgage | Originated
Age analysis of past due loans
Past due Total	229	501
Current	506,599	471,577
Total Loans and Leases	506,828	472,078
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	2,251	1,340
Residential mortgage | Acquired
Age analysis of past due loans
Past due Total	3,774	2,715
Current	92,471	97,127
Total Loans and Leases	96,245	99,842
Loans and leases past due greater than 90 days and accruing	2,692	2,372
Nonaccrual loans and leases	170	342
Home equity
Age analysis of past due loans
Total Loans and Leases	299,396	287,058
Home equity | Originated
Age analysis of past due loans
Past due Total	157	256
Current	206,678	181,324
Total Loans and Leases	206,835	181,580
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	159	161
Home equity | Acquired
Age analysis of past due loans
Past due Total	1,852	2,661
Current	90,709	102,817
Total Loans and Leases	92,561	105,478
Loans and leases past due greater than 90 days and accruing	175	187
Nonaccrual loans and leases	1,985	1,757
Other consumer
Age analysis of past due loans
Total Loans and Leases	12,197	11,747
Other consumer | Originated
Age analysis of past due loans
Past due Total	310	52
Current	11,748	11,528
Total Loans and Leases	12,058	11,580
Loans and leases past due greater than 90 days and accruing	1	0
Nonaccrual loans and leases	42	41
Other consumer | Acquired
Age analysis of past due loans
Past due Total	0	0
Current	139	167
Total Loans and Leases	139	167
Loans and leases past due greater than 90 days and accruing	0	0
Nonaccrual loans and leases	0	0
31-60 Days
Age analysis of past due loans
Past due Total	12,488	12,439
31-60 Days | Originated
Age analysis of past due loans
Past due Total	8,864	9,536
31-60 Days | Acquired
Age analysis of past due loans
Past due Total	3,624	2,903
31-60 Days | Commercial real estate loans | Originated
Age analysis of past due loans
Past due Total	454	2,016
31-60 Days | Commercial real estate loans | Acquired
Age analysis of past due loans
Past due Total	1,183	1,184
31-60 Days | Commercial real estate mortgage | Originated
Age analysis of past due loans
Past due Total	454	1,631
31-60 Days | Commercial real estate mortgage | Acquired
Age analysis of past due loans
Past due Total	1,183	989
31-60 Days | Multi-family mortgage | Originated
Age analysis of past due loans
Past due Total	0	385
31-60 Days | Multi-family mortgage | Acquired
Age analysis of past due loans
Past due Total	0	195
31-60 Days | Construction | Originated
Age analysis of past due loans
Past due Total	0	0
31-60 Days | Construction | Acquired
Age analysis of past due loans
Past due Total	0	0
31-60 Days | Commercial loans | Originated
Age analysis of past due loans
Past due Total	6,594	2,793
31-60 Days | Commercial loans | Acquired
Age analysis of past due loans
Past due Total	967	714
31-60 Days | Commercial | Originated
Age analysis of past due loans
Past due Total	4,589	758
31-60 Days | Commercial | Acquired
Age analysis of past due loans
Past due Total	941	712
31-60 Days | Equipment financing | Originated
Age analysis of past due loans
Past due Total	2,005	1,534
31-60 Days | Equipment financing | Acquired
Age analysis of past due loans
Past due Total	26	2
31-60 Days | Condominium association | Originated
Age analysis of past due loans
Past due Total	0	501
31-60 Days | Indirect automobile | Originated
Age analysis of past due loans
Past due Total	1,492	4,635
31-60 Days | Consumer loans | Originated
Age analysis of past due loans
Past due Total	324	92
31-60 Days | Consumer loans | Acquired
Age analysis of past due loans
Past due Total	1,474	1,005
31-60 Days | Residential mortgage | Originated
Age analysis of past due loans
Past due Total	0	0
31-60 Days | Residential mortgage | Acquired
Age analysis of past due loans
Past due Total	912	0
31-60 Days | Home equity | Originated
Age analysis of past due loans
Past due Total	51	75
31-60 Days | Home equity | Acquired
Age analysis of past due loans
Past due Total	562	1,005
31-60 Days | Other consumer | Originated
Age analysis of past due loans
Past due Total	273	17
31-60 Days | Other consumer | Acquired
Age analysis of past due loans
Past due Total	0	0
61-90 Days
Age analysis of past due loans
Past due Total	7,169	8,117
61-90 Days | Originated
Age analysis of past due loans
Past due Total	6,478	2,410
61-90 Days | Acquired
Age analysis of past due loans
Past due Total	691	5,707
61-90 Days | Commercial real estate loans | Originated
Age analysis of past due loans
Past due Total	2,147	416
61-90 Days | Commercial real estate loans | Acquired
Age analysis of past due loans
Past due Total	527	4,434
61-90 Days | Commercial real estate mortgage | Originated
Age analysis of past due loans
Past due Total	2,147	416
61-90 Days | Commercial real estate mortgage | Acquired
Age analysis of past due loans
Past due Total	527	3,705
61-90 Days | Multi-family mortgage | Originated
Age analysis of past due loans
Past due Total	0	0
61-90 Days | Multi-family mortgage | Acquired
Age analysis of past due loans
Past due Total	0	729
61-90 Days | Construction | Originated
Age analysis of past due loans
Past due Total	0	0
61-90 Days | Construction | Acquired
Age analysis of past due loans
Past due Total	0	0
61-90 Days | Commercial loans | Originated
Age analysis of past due loans
Past due Total	3,851	1,014
61-90 Days | Commercial loans | Acquired
Age analysis of past due loans
Past due Total	0	540
61-90 Days | Commercial | Originated
Age analysis of past due loans
Past due Total	3,545	876
61-90 Days | Commercial | Acquired
Age analysis of past due loans
Past due Total	0	488
61-90 Days | Equipment financing | Originated
Age analysis of past due loans
Past due Total	306	138
61-90 Days | Equipment financing | Acquired
Age analysis of past due loans
Past due Total	0	52
61-90 Days | Condominium association | Originated
Age analysis of past due loans
Past due Total	0	0
61-90 Days | Indirect automobile | Originated
Age analysis of past due loans
Past due Total	477	923
61-90 Days | Consumer loans | Originated
Age analysis of past due loans
Past due Total	3	57
61-90 Days | Consumer loans | Acquired
Age analysis of past due loans
Past due Total	164	733
61-90 Days | Residential mortgage | Originated
Age analysis of past due loans
Past due Total	0	0
61-90 Days | Residential mortgage | Acquired
Age analysis of past due loans
Past due Total	0	0
61-90 Days | Home equity | Originated
Age analysis of past due loans
Past due Total	0	52
61-90 Days | Home equity | Acquired
Age analysis of past due loans
Past due Total	164	733
61-90 Days | Other consumer | Originated
Age analysis of past due loans
Past due Total	3	5
61-90 Days | Other consumer | Acquired
Age analysis of past due loans
Past due Total	0	0
Greater than 90 Days
Age analysis of past due loans
Past due Total	19,448	14,364
Greater than 90 Days | Originated
Age analysis of past due loans
Past due Total	5,049	4,877
Greater than 90 Days | Acquired
Age analysis of past due loans
Past due Total	14,399	9,487
Greater than 90 Days | Commercial real estate loans | Originated
Age analysis of past due loans
Past due Total	1,544	160
Greater than 90 Days | Commercial real estate loans | Acquired
Age analysis of past due loans
Past due Total	6,800	2,750
Greater than 90 Days | Commercial real estate mortgage | Originated
Age analysis of past due loans
Past due Total	1,235	160
Greater than 90 Days | Commercial real estate mortgage | Acquired
Age analysis of past due loans
Past due Total	4,409	2,387
Greater than 90 Days | Multi-family mortgage | Originated
Age analysis of past due loans
Past due Total	309	0
Greater than 90 Days | Multi-family mortgage | Acquired
Age analysis of past due loans
Past due Total	2,391	363
Greater than 90 Days | Construction | Originated
Age analysis of past due loans
Past due Total	0	0
Greater than 90 Days | Construction | Acquired
Age analysis of past due loans
Past due Total	0	0
Greater than 90 Days | Commercial loans | Originated
Age analysis of past due loans
Past due Total	3,060	3,891
Greater than 90 Days | Commercial loans | Acquired
Age analysis of past due loans
Past due Total	3,611	3,099
Greater than 90 Days | Commercial | Originated
Age analysis of past due loans
Past due Total	1,040	1,499
Greater than 90 Days | Commercial | Acquired
Age analysis of past due loans
Past due Total	3,611	3,033
Greater than 90 Days | Equipment financing | Originated
Age analysis of past due loans
Past due Total	2,020	2,392
Greater than 90 Days | Equipment financing | Acquired
Age analysis of past due loans
Past due Total	0	66
Greater than 90 Days | Condominium association | Originated
Age analysis of past due loans
Past due Total	0	0
Greater than 90 Days | Indirect automobile | Originated
Age analysis of past due loans
Past due Total	76	166
Greater than 90 Days | Consumer loans | Originated
Age analysis of past due loans
Past due Total	369	660
Greater than 90 Days | Consumer loans | Acquired
Age analysis of past due loans
Past due Total	3,988	3,638
Greater than 90 Days | Residential mortgage | Originated
Age analysis of past due loans
Past due Total	229	501
Greater than 90 Days | Residential mortgage | Acquired
Age analysis of past due loans
Past due Total	2,862	2,715
Greater than 90 Days | Home equity | Originated
Age analysis of past due loans
Past due Total	106	129
Greater than 90 Days | Home equity | Acquired
Age analysis of past due loans
Past due Total	1,126	923
Greater than 90 Days | Other consumer | Originated
Age analysis of past due loans
Past due Total	34	30
Greater than 90 Days | Other consumer | Acquired
Age analysis of past due loans
Past due Total	$ 0	$ 0

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of financial instruments with off-balance sheet risk

Financial instruments with off-balance-sheet risk at the dates indicated follow:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to originate loans and leases:
Commercial real estate	$	48,538	$	107,179
Commercial	64,611		102,353
Residential mortgage	11,267		20,520
Unadvanced portion of loans and leases	533,214		629,351
Unused lines of credit:
Home equity	256,468		244,603
Other consumer	13,257		10,876
Other commercial	816		728
Unused letters of credit:
Financial standby letters of credit	17,781		16,762
Performance standby letters of credit	342		3,126
Commercial and similar letters of credit	223		50
Back-to-back interest-rate swaps	224,748		109,362

Schedule of future minimum rental payments under noncancellable operating leases

A summary of future minimum rental payments under such leases at the dates indicated follows:

	Minimum Rental Payments
	(In Thousands)
Remainder of 2015	$	2,749
Year ending:
2016	5,344
2017	4,820
2018	4,265
2019	3,353
Thereafter	12,266
Total	$	32,797

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Comprehensive Income/(Loss) - Reclassifications (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for income taxes	[1]	$ (7,115,000)	$ (6,158,000)	$ (14,219,000)	$ (12,537,000)
Net income attributable to Brookline Bancorp, Inc.	[1]			23,568,000	20,673,000
Amounts reclassified from accumulated other comprehensive income (loss)		$ 0		$ 0
Reclassification out of Accumulated Other Comprehensive Income | Investment Securities Available-for-Sale
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Loss on sales of securities, net			(13,000)		(13,000)
Provision for income taxes			5,000		5,000
Net income attributable to Brookline Bancorp, Inc.			$ (8,000)		$ (8,000)

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Loans and Leases (Tables)

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Summary of loan and lease balances and weighted average coupon rates for the originated and acquired portfolios

The following tables present loan and lease balances and weighted average coupon rates for the originated and acquired loan and lease portfolios at the dates indicated:

	At June 30, 2015
	Originated				Acquired				Total
	Balance		Weighted Average Coupon		Balance		Weighted Average Coupon		Balance		Weighted Average Coupon
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,530,765	4.06	%	$	227,516	4.19	%	$	1,758,281	4.08	%
Multi-family mortgage	576,392		4.06	%	51,179		4.45	%	627,571		4.09	%
Construction	126,975		3.67	%	531		4.97	%	127,506		3.68	%
Total commercial real estate loans	2,234,132		4.04	%	279,226		4.24	%	2,513,358		4.06	%
Commercial loans and leases:
Commercial	548,727		3.80	%	29,821		4.97	%	578,548		3.86	%
Equipment financing	637,411		6.88	%	11,036		6.07	%	648,447		6.87	%
Condominium association	55,185		4.54	%	—		—	%	55,185		4.54	%
Total commercial loans and leases	1,241,323		5.41	%	40,857		5.27	%	1,282,180		5.41	%
Indirect automobile loans	19,377		5.61	%	—		—	%	19,377		5.61	%
Consumer loans:
Residential mortgage	506,828		3.62	%	96,245		3.87	%	603,073		3.66	%
Home equity	206,835		3.32	%	92,561		3.87	%	299,396		3.50	%
Other consumer	12,058		4.98	%	139		16.80	%	12,197		5.12	%
Total consumer loans	725,721		3.56	%	188,945		3.88	%	914,666		3.63	%
Total loans and leases	$	4,220,553	4.37	%	$	509,028	4.19	%	$	4,729,581	4.35	%

	At December 31, 2014
	Originated				Acquired				Total
	Balance		Weighted Average Coupon		Balance		Weighted Average Coupon		Balance		Weighted Average Coupon
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,425,621	4.18	%	$	254,461	4.29	%	$	1,680,082	4.20	%
Multi-family mortgage	576,214		4.11	%	63,492		4.50	%	639,706		4.15	%
Construction	146,074		3.79	%	1,939		5.50	%	148,013		3.81	%
Total commercial real estate loans	2,147,909		4.13	%	319,892		4.34	%	2,467,801		4.16	%
Commercial loans and leases:
Commercial	462,730		3.88	%	51,347		4.14	%	514,077		3.91	%
Equipment financing	587,496		6.92	%	13,928		6.22	%	601,424		6.90	%
Condominium association	51,593		4.60	%	—		—	%	51,593		4.60	%
Total commercial loans and leases	1,101,819		5.53	%	65,275		4.58	%	1,167,094		5.48	%
Indirect automobile loans	316,987		4.47	%	—		—	%	316,987		4.47	%
Consumer loans:
Residential mortgage	472,078		3.60	%	99,842		3.77	%	571,920		3.63	%
Home equity	181,580		3.35	%	105,478		3.85	%	287,058		3.53	%
Other consumer	11,580		5.13	%	167		16.35	%	11,747		5.29	%
Total consumer loans	665,238		3.56	%	205,487		3.82	%	870,725		3.62	%
Total loans and leases	$	4,231,953	4.43	%	$	590,654	4.19	%	$	4,822,607	4.40	%

Schedule of activity in the accretable yield for acquired loan portfolio

The following table summarizes activity in the accretable yield for the acquired loan portfolio for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Balance at beginning of period	$	30,660		$	42,501		$	32,044		$	45,789
Reclassification from nonaccretable difference for loans with improved cash flows	682			214			2,122			1,654
Accretion	(2,612		)	(4,537		)	(5,436		)	(9,265		)
Balance at end of period	$	28,730		$	38,178		$	28,730		$	38,178

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Premises and Equipment (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Proceeds from sales or premises and equipment				$ 0	$ 1,972
Carrying value of premises and equipment		$ 77,892		77,892		$ 80,619
Gain on sale/disposals of premises and equipment, net		$ 0	$ (6)	$ 0	1,504
Facility
Property, Plant and Equipment [Line Items]
Proceeds from sales or premises and equipment	$ 2,200
Carrying value of premises and equipment	$ 400
Cost of sale					200
Gain on sale/disposals of premises and equipment, net					$ 1,600

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Loans and Leases (Details 2) - Acquired - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Summarized activity in accretable yield for the acquired loan portfolio
Balance at beginning of period	$ 30,660	$ 42,501	$ 32,044	$ 45,789
Reclassification from nonaccretable difference for loans with improved cash flows	682	214	2,122	1,654
Accretion	(2,612)	(4,537)	(5,436)	(9,265)
Balance at end of period	28,730	$ 38,178	28,730	$ 38,178
Aggregate remaining nonaccretable difference (representing both principal and interest) applicable to acquired loans	$ 1,500		$ 1,500		$ 3,600

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Investment Securities (Details 3)	6 Months Ended
	Jun. 30, 2015 USD ($) issuer security	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) security
Investment Securities
Estimated fair value	$ 530,476,000		$ 550,761,000
Net unrealized gain (loss)	(2,900,000)		(2,800,000)
Purchases of investment securities available-for-sale	31,466,000	$ 69,108,000
U.S. Government-Sponsored Enterprises backed explicitly by the full faith and credit of the U.S. Government
Investment Securities
Estimated fair value	21,200,000		26,200,000
GSEs
Investment Securities
Estimated fair value	$ 18,550,000		$ 22,988,000
Number of securities under unrealized loss position | security	3		4
Number of securities | security	7		8
Purchases of investment securities available-for-sale	$ 2,000,000	2,000,000
GSE mortgage-related securities
Investment Securities
Estimated fair value	469,200,000		$ 485,200,000
Net unrealized gain (loss)	$ (3,300,000)		$ (3,100,000)
Number of securities under unrealized loss position | security	90		79
Number of securities | security	254		250
Purchases of investment securities available-for-sale	$ 29,500,000	55,100,000
SBA commercial loan asset-backed securities
Investment Securities
Estimated fair value	$ 179,000		$ 203,000
Number of securities under unrealized loss position | security	7		7
Number of securities | security	8		8
Corporate debt obligations
Investment Securities
Estimated fair value	$ 40,254,000		$ 40,207,000
Net unrealized gain (loss)	$ 400,000		$ 400,000
Number of securities under unrealized loss position | security	1		1
Number of securities | security	13		13
Purchases of investment securities available-for-sale	$ 0	$ 12,000,000
Trust preferred securities
Investment Securities
Estimated fair value	1,321,000		$ 1,240,000
Net unrealized gain (loss)	$ (100,000)		$ (200,000)
Number of securities under unrealized loss position | security	2		2
Number of securities | security	2		2
Number of issuers defaulting on scheduled payments | issuer	0
Marketable equity securities
Investment Securities
Estimated fair value	$ 973,000		$ 973,000
Number of securities under unrealized loss position | security	0		0

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Goodwill and Other Intangible Assets (Details 2) $ in Thousands	Jun. 30, 2015 USD ($)
Scheduled amortization expense attributable to other acquisition-related intangible assets
Remainder of 2015	$ 1,449
Year ending:
2016	2,500
2017	2,089
2018	1,669
2019	1,295
Thereafter	1,991
Total	$ 10,993

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Commitments and Contingencies (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Loan commitments
Unadvanced portion of loans and leases	$ 533,214		$ 629,351
Unused lines of credit:
Home equity	256,468		244,603
Other consumer	13,257		10,876
Other commercial	816		728
Unused letters of credit:
Financial standby letters of credit	17,781		16,762
Performance standby letters of credit	342		3,126
Commercial and similar letters of credit	223		50
Back-to-back interest-rate swaps	224,748		109,362
Unfunded credit commitments liability included in other liabilities	1,400	$ 1,200	1,300
Fair value of interest rate swap assets	2,600		2,700
Fair value of interest rate swap liabilities	2,500		2,700
Summary of future minimum rental payments under noncancellable operating leases year ending December 31
Remainder of 2015	2,749
Year ending:
2016	5,344
2017	4,820
2018	4,265
2019	3,353
Thereafter	12,266
Total	32,797
Total rental expense	$ 2,600	3,600
Operating leases, rent expense, acceleration		$ 800
Minimum
Summary of future minimum rental payments under noncancellable operating leases year ending December 31
Lease term (over 20 years)	5 years
Maximum
Summary of future minimum rental payments under noncancellable operating leases year ending December 31
Lease term (over 20 years)	20 years
Commercial real estate mortgage loans
Loan commitments
Commitments to originate loans and leases	$ 48,538		107,179
Commercial
Loan commitments
Commitments to originate loans and leases	64,611		102,353
Residential mortgage
Loan commitments
Commitments to originate loans and leases	$ 11,267		$ 20,520

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Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator:
Net income	[1]	$ 11,865	$ 10,131	$ 23,568	$ 20,673
Denominator:
Weighted average shares outstanding		70,049,829	69,886,576	70,042,997	69,881,055
Effect of dilutive securities (in shares)		166,021	125,801	147,018	117,164
Adjusted weighted average shares outstanding		70,215,850	70,012,377	70,190,015	69,998,219
EPS, Basic (in dollars per share)	[1]	$ 0.17	$ 0.15	$ 0.34	$ 0.30
EPS, Fully Diluted (in dollars per share)	[1]	$ 0.17	$ 0.14	$ 0.34	$ 0.29

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Allowance for Loan and Lease Losses (Details 4) - Jun. 30, 2015 - class	Total
Commercial real estate loans
Allowance for loan losses and recorded investment in loans
Number of loan classes within specific portfolio	3
Commercial real estate
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	37.20%
Multi-family mortgage
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	13.30%
Construction loans
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	2.70%
Commercial loans
Allowance for loan losses and recorded investment in loans
Number of loan classes within specific portfolio	3
Commercial
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	12.20%
Equipment financing
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	13.70%
Condominium association
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	1.20%
Indirect automobile
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	0.40%
Consumer loans
Allowance for loan losses and recorded investment in loans
Number of loan classes within specific portfolio	3
Minimum loan-to-value ratio needed for loans to be made	80.00%
Residential
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	12.80%
Home equity
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	6.30%
Other consumer
Allowance for loan losses and recorded investment in loans
Percentage of loans to aggregate outstanding amount	0.30%

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Basis of Presentation

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

Overview

Brookline Bancorp, Inc. (the “Company”) is a bank holding company (within the meaning of the Bank Holding Company Act of 1956, as amended) and the parent of Brookline Bank, a Massachusetts-chartered savings bank; Bank Rhode Island (“BankRI”), a Rhode Island-chartered financial institution; and First Ipswich Bank (“First Ipswich”), a Massachusetts-chartered savings bank (collectively referred to as the “Banks”). The Banks are all members of the Federal Reserve System. The Company is also the parent of Brookline Securities Corp. (“BSC”). The Company’s primary business is to provide commercial, business and retail banking services to its corporate, municipal and individual customers through its banks and non-bank subsidiaries.

Brookline Bank, which includes its wholly-owned subsidiaries BBS Investment Corp., Longwood Securities Corp. and its 84.5%-owned subsidiary, Eastern Funding LLC (“Eastern Funding”), operates 24 full-service banking offices in the greater Boston metropolitan area. BankRI, which includes its wholly-owned subsidiaries BRI Investment Corp., Macrolease Corporation (“Macrolease”), Acorn Insurance Agency, BRI Realty Corp. and BRI MSC Corp., operates 19 full-service banking offices in the greater Providence area. First Ipswich, which includes its wholly-owned subsidiaries First Ipswich Securities II Corp. and First Ipswich Insurance Agency, operates 5 full-service banking offices on the north shore of eastern Massachusetts.

The Company’s activities include acceptance of commercial, municipal and retail deposits, origination of mortgage loans on commercial and residential real estate located principally in Massachusetts and Rhode Island, origination of commercial loans and leases to small- and mid-sized businesses, investment in debt and equity securities, and the offering of cash management and investment advisory services. The Company also provides specialty equipment financing through its subsidiaries Eastern Funding, which is based in New York City, New York, and Macrolease, which is based in Plainview, New York. The Company ceased the origination of indirect automobile loans in December 2014.

The Company and the Banks are supervised, examined and regulated by the Board of Governors of the Federal Reserve System ("FRB"). As Massachusetts-chartered banks, Brookline Bank and First Ipswich are also subject to regulation under the laws of the Commonwealth of Massachusetts and the jurisdiction of the Massachusetts Division of Banks. As a Rhode Island-chartered bank, BankRI is also subject to regulation under the laws of the State of Rhode Island and the jurisdiction of the Banking Division of the Rhode Island Department of Business Regulation.

The Federal Deposit Insurance Corporation (“FDIC”) offers insurance coverage on all deposits up to $250,000 per depositor at each of the three Banks. As FDIC-insured depository institutions, all three Banks are also secondarily subject to supervision, examination and regulation by the FDIC. Additionally, as a Massachusetts-chartered savings bank, Brookline Bank is also insured by the Depositors Insurance Fund (“DIF”), a private industry-sponsored insurance company. The DIF insures savings bank deposits in excess of the FDIC insurance limits. As such, Brookline Bank offers 100% insurance on all deposits as a result of a combination of insurance from the FDIC and the DIF. Brookline Bank is required to file reports with the DIF.

Basis of Financial Statement Presentation

The unaudited consolidated financial statements of the Company presented herein have been prepared pursuant to the rules of the Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by U.S. generally accepted accounting principles (“GAAP”). In the opinion of management, all adjustments (consisting of normal recurring adjustments) and disclosures considered necessary for the fair presentation of the accompanying consolidated financial statements have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Annual Report on Form 10-K for the fiscal year ended December 31, 2014. 

The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances are eliminated in consolidation.

In preparing these consolidated financial statements, management is required to make significant estimates and assumptions that affect the reported amounts of assets, liabilities, income, expenses and disclosure of contingent assets and liabilities. Actual results could differ from those estimates based upon changing conditions, including economic conditions and future events. Material estimates that are particularly susceptible to significant change in the near-term include the determination of the allowance for loan and lease losses, the determination of fair market values of assets and liabilities, including acquired loans and leases, the review of goodwill and intangibles for impairment and the review of deferred tax assets for valuation allowances.

The judgments used by management in applying these critical accounting policies may be affected by a further and prolonged deterioration in the economic environment, which may result in changes to future financial results. For example, subsequent evaluations of the loan and lease portfolio, in light of the factors then prevailing, may result in significant changes in the allowance for loan and lease losses in future periods, and the inability to collect outstanding principal may result in increased loan and lease losses.

Reclassification

Certain previously reported amounts have been reclassified to conform to the current year’s presentation. Except for the adoption of ASU 2014-01, there were no changes to stockholders' equity and net income reported. Refer to Note 8, "Investments in Qualified Affordable Projects" for the impact the adoption had on the Company's financial statements.

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Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Assets:
Total securities available-for-sale	$ 530,476	$ 550,761
Interest-rate swaps	2,649	2,676
Liabilities:
Interest-rate swaps	$ 2,484	2,714
Changes in generic pricing of securities period one, considered for analyzing changes in prices obtained from pricing service	15 years
Changes in generic pricing of securities period two, considered for analyzing changes in prices obtained from pricing service	30 years
Recurring basis
Assets:
Interest-rate swaps	$ 2,649	2,676
Liabilities:
Interest-rate swaps	2,484	2,714
Recurring basis | Securities available for sale
Assets:
Total securities available-for-sale	530,476	550,761
Recurring basis | Debt securities
Assets:
Total securities available-for-sale	529,503	549,788
Recurring basis | GSEs
Assets:
Total securities available-for-sale	18,550	22,988
Recurring basis | GSE CMOs
Assets:
Total securities available-for-sale	214,397	234,169
Recurring basis | GSE MBSs
Assets:
Total securities available-for-sale	254,802	250,981
Recurring basis | SBA commercial loan asset-backed securities
Assets:
Total securities available-for-sale	179	203
Recurring basis | Corporate debt obligations
Assets:
Total securities available-for-sale	40,254	40,207
Recurring basis | Trust preferred securities
Assets:
Total securities available-for-sale	1,321	1,240
Recurring basis | Marketable equity securities
Assets:
Total securities available-for-sale	973	973
Recurring basis | Level 1
Assets:
Interest-rate swaps	0	0
Liabilities:
Interest-rate swaps	0	0
Recurring basis | Level 1 | Securities available for sale
Assets:
Total securities available-for-sale	973	973
Recurring basis | Level 1 | Debt securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | GSEs
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | GSE CMOs
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | GSE MBSs
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | SBA commercial loan asset-backed securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | Corporate debt obligations
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | Trust preferred securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 1 | Marketable equity securities
Assets:
Total securities available-for-sale	973	973
Recurring basis | Level 2
Assets:
Interest-rate swaps	2,649	2,676
Liabilities:
Interest-rate swaps	2,484	2,714
Recurring basis | Level 2 | Securities available for sale
Assets:
Total securities available-for-sale	529,503	549,788
Recurring basis | Level 2 | Debt securities
Assets:
Total securities available-for-sale	529,503	549,788
Recurring basis | Level 2 | GSEs
Assets:
Total securities available-for-sale	18,550	22,988
Recurring basis | Level 2 | GSE CMOs
Assets:
Total securities available-for-sale	214,397	234,169
Recurring basis | Level 2 | GSE MBSs
Assets:
Total securities available-for-sale	254,802	250,981
Recurring basis | Level 2 | SBA commercial loan asset-backed securities
Assets:
Total securities available-for-sale	179	203
Recurring basis | Level 2 | Corporate debt obligations
Assets:
Total securities available-for-sale	40,254	40,207
Recurring basis | Level 2 | Trust preferred securities
Assets:
Total securities available-for-sale	1,321	1,240
Recurring basis | Level 2 | Marketable equity securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3
Assets:
Interest-rate swaps	0	0
Liabilities:
Interest-rate swaps	0	0
Recurring basis | Level 3 | Securities available for sale
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | Debt securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | GSEs
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | GSE CMOs
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | GSE MBSs
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | SBA commercial loan asset-backed securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | Corporate debt obligations
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | Trust preferred securities
Assets:
Total securities available-for-sale	0	0
Recurring basis | Level 3 | Marketable equity securities
Assets:
Total securities available-for-sale	$ 0	$ 0

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Loans and Leases (Details 3) - USD ($) $ in Billions	Jun. 30, 2015	Dec. 31, 2014
Receivables [Abstract]
Loans and leases pledged as collateral	$ 1.9	$ 1.6

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Comprehensive Income/(Loss) (Tables)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Schedule of changes in accumulated other comprehensive (loss) income by component, net of tax

Changes in accumulated other comprehensive (loss) income by component, net of tax, were as follows for the periods indicated:

	Three Months Ended June 30, 2015
	Investment Securities Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at March 31, 2015	$	1,636		$	111	$	1,747
Other comprehensive loss	(3,522		)	—		(3,522		)
Balance at June 30, 2015	$	(1,886	)	$	111	$	(1,775	)

	Three Months Ended June 30, 2014
	Investment Securities  Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at March 31, 2014	$	(6,301	)	$	365	$	(5,936	)
Other comprehensive income	2,727			—		2,727
Balance at June 30, 2014	$	(3,574	)	$	365	$	(3,209	)

	Six Months Ended June 30, 2015
	Investment Securities Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at December 31, 2014	$	(1,733	)	$	111	$	(1,622	)
Other comprehensive loss	(153		)	—		(153		)
Balance at June 30, 2015	$	(1,886	)	$	111	$	(1,775	)

	Six Months Ended June 30, 2014
	Investment Securities Available-for-Sale			Postretirement Benefits			Accumulated Other Comprehensive Income
	(In Thousands)
Balance at December 31, 2013	$	(8,332	)	$	417		$	(7,915	)
Other comprehensive income (loss)	4,758			(52		)	4,706
Balance at June 30, 2014	$	(3,574	)	$	365		$	(3,209	)

Summary of the amounts reclassified from accumulated other comprehensive income (loss)

The following is a summary of the amounts reclassified from accumulated other comprehensive income (loss) for the three and six months endedJune 30, 2014.

	Three Months Ended			Six Months Ended			Income Statement Line Affected by Reclassification
	June 30, 2014			June 30, 2014
	(In Thousands)
Other comprehensive income (loss) component
Unrealized gains (losses) on investment securities available-for-sale	$	(13	)	$	(13	)	Loss on sales of securities, net
	5			5			Provision for income taxes
Total reclassifications for the period	$	(8	)	$	(8	)	Net income

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Investments in Qualified Affordable Housing Projects (Tables)

6 Months Ended

Jun. 30, 2015

Investments in Affordable Housing Projects [Abstract]

Investments in Affordable Housing Projects

Further information regarding the Company's investments in affordable housing projects follows:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Investments in affordable housing projects included in other assets	$	10,400	$	10,313
Unfunded commitments related to affordable housing projects included in other liabilities	1,982		2,608
Investments in affordable housing projects tax credits included in other liabilities	794		1,432
Investments in affordable housing projects tax benefits included in other liabilities	328		669

	At and for the Three Months Ended    June 30, 2015		At and for the Six Months Ended June 30, 2015
	(In Thousands)
Investment amortization included in pretax income	$	393	$	803
Amount recognized as income tax benefit	151		302

Schedule of Prior Period Adjustments Related to New Accounting Pronouncement

The following table illustrates the prior period adjustments related to the adoption of ASU 2014-01.

	At December 31, 2014
	(In Thousands)
Other assets, as reported	$	79,411
Prior period adjustment	1,068
Other assets, as adjusted	$	80,479
Retained earnings, as reported	$	83,792
Prior period adjustment	1,068
Retained earnings, as adjusted	$	84,860

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	(In Thousands)
Loss from investments in affordable housing projects, as reported	$	539		$	1,043
Prior period adjustment	(539		)	(1,043		)
Loss from investments in affordable housing projects, as adjusted	$	—		$	—
Provision for income taxes, as reported	$	5,774		$	11,769
Prior period adjustment	384			768
Provision for income taxes, as adjusted	$	6,158		$	12,537
Net income, as reported	$	9,976		$	20,398
Prior period adjustment	155			275
Net income, as adjusted	$	10,131		$	20,673
Basic earnings per share, as reported	$	0.14		$	0.29
Prior period adjustment	0.01			0.01
Basic earnings per share, as adjusted	$	0.15		$	0.30
Effective tax rate, as reported	35.58		%	35.59		%
Prior period adjustment	1.15		%	1.17		%
Effective tax rate, as adjusted	36.73		%	36.76		%

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Comprehensive Income/(Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Changes in accumulated other comprehensive (loss) income by component, net of tax
Balance at the beginning of the period	$ 1,747	$ (5,936)	$ (1,622)	$ (7,915)
Other comprehensive income (loss)	(3,522)	2,727	(153)	4,706
Balance at the end of the period	(1,775)	(3,209)	(1,775)	(3,209)
Investment Securities Available-for-Sale
Changes in accumulated other comprehensive (loss) income by component, net of tax
Balance at the beginning of the period	1,636	(6,301)	(1,733)	(8,332)
Other comprehensive income (loss)	(3,522)	2,727	(153)	4,758
Balance at the end of the period	(1,886)	(3,574)	(1,886)	(3,574)
Postretirement Benefits
Changes in accumulated other comprehensive (loss) income by component, net of tax
Balance at the beginning of the period	111	365	111	417
Other comprehensive income (loss)	0	0	0	(52)
Balance at the end of the period	$ 111	$ 365	$ 111	$ 365

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Allowance for Loan and Lease Losses (Details)	3 Months Ended			6 Months Ended
	Jun. 30, 2015 USD ($) class	Mar. 31, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) class	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Changes in allowance for loan losses
Balance at the beginning of the period	$ 55,106,000	$ 53,659,000	$ 50,224,000	$ 53,659,000	$ 48,473,000
Charge-offs	(1,029,000)		(1,196,000)	(2,694,000)	(2,246,000)
Recoveries	528,000		476,000	1,339,000	860,000
Credit (provision) for loan and lease losses	1,793,000		2,182,000	4,094,000	4,599,000
Balance at the end of the period	56,398,000	55,106,000	51,686,000	56,398,000	51,686,000
Unfunded credit commitments liability included in other liabilities	1,400,000		1,200,000	1,400,000	1,200,000	$ 1,300,000
Unfunded credit commitments liability charged off				0	0
Provision (credit) for loan and lease losses:
Total provision for loan and lease losses	1,793,000		2,182,000	4,094,000	4,599,000
Unfunded credit commitments	120,000		94,000	82,000	120,000
Total provision for credit losses	1,913,000		2,276,000	4,176,000	4,719,000
General allowance for loan and lease losses	51,000,000			51,000,000		50,100,000
Increase in general portion of the allowance for loan and lease losses				900,000
Specific allowance for loan and lease losses	2,800,000			2,800,000		1,200,000
Increase in specific portion of the allowance for loan and lease losses				1,600,000
Unallocated allowance for loan and lease losses	2,600,000			2,600,000		$ 2,400,000
Increase in unallocated portion of the allowance for loan and lease losses				200,000
Commercial Real Estate
Changes in allowance for loan losses
Balance at the beginning of the period	29,460,000	29,594,000	24,858,000	29,594,000	23,022,000
Charge-offs	(162,000)		0	(550,000)	0
Recoveries	0		0	0	0
Credit (provision) for loan and lease losses	(82,000)		1,857,000	172,000	3,693,000
Balance at the end of the period	29,216,000	29,460,000	26,715,000	29,216,000	26,715,000
Provision (credit) for loan and lease losses:
Total provision for loan and lease losses	$ (82,000)		1,857,000	$ 172,000	3,693,000
Number of loan classes within specific portfolio | class	3			3
Commercial
Changes in allowance for loan losses
Balance at the beginning of the period	$ 19,084,000	15,957,000	15,544,000	$ 15,957,000	15,220,000
Charge-offs	(245,000)		(796,000)	(695,000)	(1,347,000)
Recoveries	94,000		218,000	306,000	469,000
Credit (provision) for loan and lease losses	1,296,000		900,000	4,661,000	1,524,000
Balance at the end of the period	20,229,000	19,084,000	15,866,000	20,229,000	15,866,000
Provision (credit) for loan and lease losses:
Total provision for loan and lease losses	$ 1,296,000		900,000	$ 4,661,000	1,524,000
Number of loan classes within specific portfolio | class	3			3
Indirect Automobile
Changes in allowance for loan losses
Balance at the beginning of the period	$ 458,000	2,331,000	3,664,000	$ 2,331,000	3,924,000
Charge-offs	(397,000)		(228,000)	(1,217,000)	(517,000)
Recoveries	410,000		173,000	991,000	277,000
Credit (provision) for loan and lease losses	(90,000)		77,000	(1,724,000)	2,000
Balance at the end of the period	381,000	458,000	3,686,000	381,000	3,686,000
Provision (credit) for loan and lease losses:
Total provision for loan and lease losses	(90,000)		77,000	(1,724,000)	2,000
Release in general allowance resulting from the sale of portfolio		1,900,000
Consumer
Changes in allowance for loan losses
Balance at the beginning of the period	3,619,000	3,359,000	3,110,000	3,359,000	3,375,000
Charge-offs	(225,000)		(172,000)	(232,000)	(382,000)
Recoveries	24,000		85,000	42,000	114,000
Credit (provision) for loan and lease losses	594,000		(6,000)	843,000	(90,000)
Balance at the end of the period	4,012,000	3,619,000	3,017,000	4,012,000	3,017,000
Provision (credit) for loan and lease losses:
Total provision for loan and lease losses	$ 594,000		(6,000)	$ 843,000	(90,000)
Number of loan classes within specific portfolio | class	3			3
Unallocated
Changes in allowance for loan losses
Balance at the beginning of the period	$ 2,485,000	2,418,000	3,048,000	$ 2,418,000	2,932,000
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Credit (provision) for loan and lease losses	75,000		(646,000)	142,000	(530,000)
Balance at the end of the period	2,560,000	$ 2,485,000	2,402,000	2,560,000	2,402,000
Provision (credit) for loan and lease losses:
Total provision for loan and lease losses	$ 75,000		$ (646,000)	$ 142,000	$ (530,000)

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Derivatives and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of fair value and classification of the Company's derivative financial instruments on the unaudited consolidated balance sheets and the effect of the Company's derivative financial instruments on the unaudited consolidated income statements

Asset derivatives and liability derivatives are included in other assets and accrued expenses and other liabilities on the unaudited consolidated balance sheets, respectively. The table below presents the fair value and classification of the Company’s derivative financial instruments at June 30, 2015 and December 31, 2014.

	At June 30, 2015				At December 31, 2014
	Asset Derivatives		Liability Derivatives		Asset Derivatives		Liability Derivatives
	(In Thousands)
Total derivatives (interest-rate products) not designated as hedging instruments	$	2,649	$	2,484	$	2,676	$	2,714

Changes in the fair value are recognized directly in the Company's unaudited consolidated statements of income and are included in other non-interest income in the consolidated statements of income. The table below presents the gain recognized in income due to changes in the fair value for the three and six months endedJune 30, 2015 and June 30, 2014.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In Thousands)
Gain recognized in income on derivatives	$	295	$	4	$	204	$	6

Schedule of offsetting of derivatives and amounts subject to master netting agreements not offset in the unaudited consolidated balance sheet

The tables below present the offsetting of derivatives and amounts subject to master netting agreements not offset in the unaudited consolidated balance sheet at the dates indicated.

	At June 30, 2015
	Gross Amounts of Recognized Assets /Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets Presented in the Statement of Financial Position		Gross Amounts Not Offset in the Statement of Financial Position				Net Amount
							Financial Instruments		Cash Collateral (Received)/ Posted
	(In Thousands)
Asset Derivatives	$	2,649	$	—	$	2,649	$	—	$	—	$	2,649
Liability Derivatives	$	2,484	$	—	$	2,484	$	3,744	$	4,030	$	10,258

	At December 31, 2014
	Gross Amounts of Recognized Assets /Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets Presented in the Statement of Financial Position		Gross Amounts Not Offset in the Statement of Financial Position				Net Amount
							Financial Instruments		Cash Collateral (Received) / Posted
	(In Thousands)
Asset Derivatives	$	2,676	$	—	$	2,676	$	—	$	—	$	2,676
Liability Derivatives	$	2,714	$	—	$	2,714	$	4,173	$	1,180	$	8,067

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Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of reconciliation of basic and diluted earnings per share (EPS)

The following table sets forth a reconciliation of basic and diluted earnings per share (“EPS”) for the periods indicated:

	Three Months Ended
	June 30, 2015				June 30, 2014
	Basic		Fully Diluted		Basic		Fully Diluted
	(In Thousands Except Share Data)
Numerator:
Net income*	$	11,865	$	11,865	$	10,131	$	10,131
Denominator:
Weighted average shares outstanding	70,049,829		70,049,829		69,886,576		69,886,576
Effect of dilutive securities	—		166,021		—		125,801
Adjusted weighted average shares outstanding	70,049,829		70,215,850		69,886,576		70,012,377
EPS*	$	0.17	$	0.17	$	0.15	$	0.14

	Six Months Ended
	June 30, 2015				June 30, 2014
	Basic		Fully Diluted		Basic		Fully Diluted
	(In Thousands Except Share Data)
Numerator:
Net income*	$	23,568	$	23,568	$	20,673	$	20,673
Denominator:
Weighted average shares outstanding	70,042,997		70,042,997		69,881,055		69,881,055
Effect of dilutive securities	—		147,018		—		117,164
Adjusted weighted average shares outstanding	70,042,997		70,190,015		69,881,055		69,998,219
EPS*	$	0.34	$	0.34	$	0.30	$	0.29

(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01.

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Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income attributable to Brookline Bancorp, Inc.	[1]	$ 23,568	$ 20,673
Adjustments to reconcile net income to net cash provided from operating activities:
Net income attributable to noncontrolling interest in subsidiary	[1]	1,296	898
Provision for credit losses		4,176	4,719
Origination of loans and leases held-for-sale		(25,697)	(15,784)
Proceeds from loans and leases held-for-sale, net	[2]	15,379	15,922
Deferred income tax (benefit) expense		(819)	1,046
Depreciation of premises and equipment		3,562	3,416
Amortization of investment securities premiums and discounts, net		822	1,448
Amortization of deferred loan and lease origination costs, net		2,824	4,991
Amortization of identified intangible assets		1,462	1,688
Amortization of debt issuance costs		50	0
Accretion of acquisition fair value adjustments, net		(3,333)	(6,884)
Gain on sale/disposals of premises and equipment, net		0	(1,504)
Loss on sales of investment securities, net		0	13
Gain on sales of loans and leases held-for-sale		(1,148)	(656)
Gain on sales of OREO and repossessed assets, net		0	(27)
Write-down of OREO and repossessed assets		132	189
Compensation under recognition and retention plans		434	435
ESOP shares committed to be released		197	185
Net change in:
Cash surrender value of bank-owned life insurance		(521)	(519)
Other assets	[1]	889	620
Accrued expenses and other liabilities		(11,891)	(6,279)
Net cash provided from operating activities	[1],[2]	11,382	24,590
Cash flows from investing activities:
Proceeds from sales of investment securities available-for-sale		0	5,083
Proceeds from maturities, calls and principal repayments of investment securities available-for-sale		50,859	34,062
Purchases of investment securities available-for-sale		(31,466)	(69,108)
Proceeds from maturities, calls, and principal repayments of investment securities held-to-maturity		241	500
Purchases of investment securities held-to-maturity		(60,295)	(500)
Purchases of restricted equity securities		(749)	(4,887)
Proceeds from sale of loans and leases held-for-investment, net	[2]	267,164	0
Net increase in loans and leases	[2]	(180,822)	(248,738)
Proceeds from sales of OREO and repossessed assets	[2]	4,140	6,795
Proceeds from sales of premises and equipment		0	1,972
Purchase of premises and equipment, net		(917)	(5,635)
Net cash provided from/(used for) investing activities	[2]	48,155	(280,456)
Cash flows from financing activities:
Increase in demand checking, NOW, savings and money market accounts		75,087	60,593
Increase/(decrease) in certificates of deposit		96,302	(34,584)
Proceeds from FHLBB advances		1,795,000	1,606,764
Repayment of FHLBB advances		(1,974,190)	(1,368,461)
Decrease in other borrowed funds, net		(8,269)	(8,460)
(Decrease)/increase in mortgagors’ escrow accounts, net		(1,007)	470
Payment of dividends on common stock		(12,300)	(11,928)
Proceeds from issuance of noncontrolling units		65	60
Payment of dividends to owners of noncontrolling interest in subsidiary		(1,072)	(1,360)
Net cash (used for)/provided from financing activities		(30,384)	243,094
Net increase/(decrease) in cash and cash equivalents		29,153	(12,772)
Cash and cash equivalents at beginning of period		62,723	92,505
Cash and cash equivalents at end of period		91,876	79,733
Cash paid during the period for:
Interest on deposits, borrowed funds and subordinated debt		17,634	15,438
Income taxes		17,013	8,490
Non-cash investing activities:
Transfer from loans to other real estate owned		$ 5,228	$ 6,625

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

[2] Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities measured at fair value on a recurring basis

The following tables set forth the carrying value of assets and liabilities measured at fair value on a recurring basis at the dates indicated:

	Carrying Value at June 30, 2015
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets:
Investment securities available-for-sale:
Debt securities:
GSEs	$	—	$	18,550	$	—	$	18,550
GSE CMOs	—		214,397		—		214,397
GSE MBSs	—		254,802		—		254,802
SBA commercial loan asset-backed securities	—		179		—		179
Corporate debt obligations	—		40,254		—		40,254
Trust preferred securities	—		1,321		—		1,321
Total debt securities	—		529,503		—		529,503
Marketable equity securities	973		—		—		973
Total investment securities available-for-sale	$	973	$	529,503	$	—	$	530,476
Interest-rate swaps	$	—	$	2,649	$	—	$	2,649
Liabilities:
Interest-rate swaps	$	—	$	2,484	$	—	$	2,484

	Carrying Value at December 31, 2014
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets:
Investment securities available-for-sale:
Debt securities:
GSEs	$	—	$	22,988	$	—	$	22,988
GSE CMOs	—		234,169		—		234,169
GSE MBSs	—		250,981		—		250,981
SBA commercial loan asset-backed securities	—		203		—		203
Corporate debt obligations	—		40,207		—		40,207
Trust preferred securities	—		1,240		—		1,240
Total debt securities	—		549,788		—		549,788
Marketable equity securities	973		—		—		973
Total investment securities available-for-sale	$	973	$	549,788	$	—	$	550,761
Interest-rate swaps	$	—	$	2,676	$	—	$	2,676
Liabilities:
Interest-rate swaps	$	—	$	2,714	$	—	$	2,714

Schedule of reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

The reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) is as follows:

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015		2014
	(In Thousands)
Investment securities available-for-sale, beginning of period	$	—	$	1,690		$	—	$	1,775
Investment security sales	—		(1,658		)	—		(1,658		)
Total realized losses included in other income	—		(242		)	—		(242		)
Total unrealized losses included in other comprehensive income	—		210			—		125
Investment securities available-for-sale, end of period	$	—	$	—		$	—	$	—

Summary of assets and liabilities measured at fair value on a non-recurring basis

The table below summarizes assets and liabilities measured at fair value on a non-recurring basis at the dates indicated:

	Carrying Value at June 30, 2015
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets measured at fair value on a non-recurring basis:
Collateral-dependent impaired loans and leases	$	—	$	—	$	17,387	$	17,387
OREO	—		—		1,676		1,676
Repossessed assets	—		736		—		736
Total assets measured at fair value on a non-recurring basis	$	—	$	736	$	19,063	$	19,799

	Carrying Value at December 31, 2014
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets measured at fair value on a non-recurring basis:
Collateral-dependent impaired loans and leases	$	—	$	—	$	6,376	$	6,376
OREO	—		—		953		953
Repossessed assets	—		503		—		503
Total assets measured at fair value on a non-recurring basis	$	—	$	503	$	7,329	$	7,832

Schedule of quantitative information about significant unobservable inputs (Level 3) for assets measured at fair value on a recurring basis

The table below presents quantitative information about significant unobservable inputs (Level 3) for assets measured at fair value on a recurring and non-recurring basis at the dates indicated.

	Fair Value				Valuation Technique
	At June 30, 2015		At December 31, 2014
	(Dollars in Thousands)
Collateral-dependent impaired loans and leases	$	17,387	$	6,376	Appraisal of collateral (1)
Other real estate owned	$	1,676	$	953	Appraisal of collateral (1)

(1) Fair value is generally determined through independent appraisals of the underlying collateral. The Company may also use another available source of collateral assessment to determine a reasonable estimate of the fair value of the collateral. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

Schedule of carrying amount, estimated fair value, and placement in the fair value hierarchy for financial instruments

The following table presents the carrying amount, estimated fair value, and placement in the fair value hierarchy of the Company’s financial instruments at the dates indicated. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents, FHLBB and FRB stock and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include non-maturity deposits, short-term borrowings and accrued interest payable.

					Fair Value Measurements
	Carrying Value		Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(In Thousands)
At June 30, 2015
Financial assets:
Investment securities held-to-maturity:
GSEs	$	26,925	$	26,728	$	—	$	26,728	$	—
GSE MBSs	20,993		20,775		—		20,775		—
Municipal Obligations	12,093		11,990		—		11,990		—
Foreign Government Obligations	500		500		—		—		500
Loans held-for-sale	12,482		12,482		—		12,482		—
Loans and leases, net	4,673,183		4,682,684		—		—		4,682,684
Financial liabilities:
Certificates of deposit	1,042,923		1,051,227		—		1,051,227		—
Borrowed funds	937,648		942,799		—		942,799		—
At December 31, 2014
Financial assets:
Investment securities held-to-maturity	$	500	$	500	$	—	$	—	$	500
Loans held-for-sale	1,537		1,537		—		1,537		—
Loans and leases, net	4,768,948		4,753,605		—		—		4,753,605
Financial liabilities:
Certificates of deposit	946,708		949,320		—		949,320		—
Borrowed funds	1,126,404		1,132,940		—		1,132,940		—

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Investment Securities (Details 6) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Sales of debt securities		$ 0	$ 5,083
Debt securities
Schedule of Available-for-sale Securities [Line Items]
Sales of debt securities	$ 5,083		5,083
Gross gains from sales	302		302
Gross losses from sales	315		315
Loss on sales of securities, net	$ (13)		$ (13)

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Investments in Qualified Affordable Housing Projects - Additional Information (Details) $ in Millions	Jun. 30, 2015 project	Jan. 01, 2015 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of affordable housing project investments | project	8
Accounting Standards Update 2014-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect on retained earnings		$ 1.1

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Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks		$ 43,363	$ 36,893
Short-term investments		48,513	25,830
Total cash and cash equivalents		91,876	62,723
Investment securities available-for-sale		530,476	550,761
Investment securities held-to-maturity (fair value of $59,993 and $500)		60,511	500
Total investment securities		590,987	551,261
Loans and leases held-for-sale		12,482	1,537
Total loans and leases		4,729,581	4,822,607
Allowance for loan and lease losses		(56,398)	(53,659)
Net loans and leases		4,673,183	4,768,948
Restricted equity securities		75,553	74,804
Premises and equipment, net of accumulated depreciation of $48,216 and $44,668, respectively		77,892	80,619
Deferred tax asset		28,466	27,687
Goodwill		137,890	137,890
Identified intangible assets, net of accumulated amortization of $27,700 and $26,238, respectively		12,082	13,544
Other real estate owned (OREO) and repossessed assets, net		2,412	1,456
Other assets	[1]	80,111	80,479
Total assets	[1]	5,782,934	5,800,948
Non-interest-bearing deposits:
Demand checking accounts		783,331	726,118
Interest-bearing deposits:
NOW accounts		247,172	235,063
Savings accounts		532,184	531,727
Money market accounts		1,523,798	1,518,490
Certificate of deposit accounts		1,042,923	946,708
Total interest-bearing deposits		3,346,077	3,231,988
Total deposits		4,129,408	3,958,106
Borrowed funds:
Advances from the Federal Home Loan Bank of Boston (FHLBB)		823,452	1,004,026
Subordinated debentures and notes		82,850	82,763
Other borrowed funds		31,346	39,615
Total borrowed funds		937,648	1,126,404
Mortgagors’ escrow accounts		7,494	8,501
Accrued expenses and other liabilities		49,792	61,332
Total liabilities		$ 5,124,342	$ 5,154,343
Commitments and contingencies
Brookline Bancorp, Inc. stockholders’ equity:
Common stock, $0.01 par value; 200,000,000 shares authorized; 75,744,445 shares issued		$ 757	$ 757
Additional paid-in capital		618,044	617,475
Retained earnings, partially restricted	[1]	96,128	84,860
Accumulated other comprehensive loss		(1,775)	(1,622)
Treasury stock, at cost; 5,048,525 shares and 5,040,571 shares, respectively		(58,372)	(58,282)
Unallocated common stock held by the Employee Stock Ownership Plan (ESOP); 232,224 shares and 251,382 shares, respectively		(1,266)	(1,370)
Total Brookline Bancorp, Inc. stockholders’ equity	[1]	653,516	641,818
Noncontrolling interest in subsidiary		5,076	4,787
Total stockholders' equity	[1]	658,592	646,605
Total liabilities and stockholders' equity	[1]	5,782,934	5,800,948
Commercial real estate loans
ASSETS
Total loans and leases		2,513,358	2,467,801
Allowance for loan and lease losses		(29,216)	(29,594)
Commercial loans
ASSETS
Total loans and leases		1,282,180	1,167,094
Allowance for loan and lease losses		(20,229)	(15,957)
Indirect automobile
ASSETS
Total loans and leases		19,377	316,987
Allowance for loan and lease losses		(381)	(2,331)
Consumer loans
ASSETS
Total loans and leases		914,666	870,725
Allowance for loan and lease losses		$ (4,012)	$ (3,359)

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Allowance for Loan and Lease Losses (Details 2) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Credit Quality Information
Recorded investment	$ 4,729,581	$ 4,822,607
Originated
Credit Quality Information
Recorded investment	4,220,553	4,231,953
Acquired
Credit Quality Information
Recorded investment	509,028	590,654
Commercial real estate mortgage
Credit Quality Information
Recorded investment	1,758,281	1,680,082
Commercial real estate mortgage | Originated
Credit Quality Information
Recorded investment	1,530,765	1,425,621
Commercial real estate mortgage | Acquired
Credit Quality Information
Recorded investment	227,516	254,461
Commercial real estate mortgage | Pass | Originated
Credit Quality Information
Recorded investment	1,514,670	1,402,121
Commercial real estate mortgage | Pass | Acquired
Credit Quality Information
Recorded investment	213,309	237,439
Commercial real estate mortgage | OAEM | Originated
Credit Quality Information
Recorded investment	12,921	22,491
Commercial real estate mortgage | OAEM | Acquired
Credit Quality Information
Recorded investment	5,081	8,351
Commercial real estate mortgage | Substandard | Originated
Credit Quality Information
Recorded investment	3,174	1,009
Commercial real estate mortgage | Substandard | Acquired
Credit Quality Information
Recorded investment	8,715	8,250
Commercial real estate mortgage | Doubtful | Originated
Credit Quality Information
Recorded investment	0	0
Commercial real estate mortgage | Doubtful | Acquired
Credit Quality Information
Recorded investment	411	421
Multi-family mortgage
Credit Quality Information
Recorded investment	627,571	639,706
Multi-family mortgage | Originated
Credit Quality Information
Recorded investment	576,392	576,214
Multi-family mortgage | Acquired
Credit Quality Information
Recorded investment	51,179	63,492
Multi-family mortgage | Pass | Originated
Credit Quality Information
Recorded investment	574,892	574,972
Multi-family mortgage | Pass | Acquired
Credit Quality Information
Recorded investment	49,233	60,837
Multi-family mortgage | OAEM | Originated
Credit Quality Information
Recorded investment	1,191	1,242
Multi-family mortgage | OAEM | Acquired
Credit Quality Information
Recorded investment	710	713
Multi-family mortgage | Substandard | Originated
Credit Quality Information
Recorded investment	309	0
Multi-family mortgage | Substandard | Acquired
Credit Quality Information
Recorded investment	1,236	1,942
Multi-family mortgage | Doubtful | Originated
Credit Quality Information
Recorded investment	0	0
Multi-family mortgage | Doubtful | Acquired
Credit Quality Information
Recorded investment	0	0
Construction
Credit Quality Information
Recorded investment	127,506	148,013
Construction | Originated
Credit Quality Information
Recorded investment	126,975	146,074
Construction | Acquired
Credit Quality Information
Recorded investment	531	1,939
Construction | Pass | Originated
Credit Quality Information
Recorded investment	126,755	146,074
Construction | Pass | Acquired
Credit Quality Information
Recorded investment	531	1,709
Construction | OAEM | Originated
Credit Quality Information
Recorded investment	220	0
Construction | OAEM | Acquired
Credit Quality Information
Recorded investment	0	230
Construction | Substandard | Originated
Credit Quality Information
Recorded investment	0	0
Construction | Substandard | Acquired
Credit Quality Information
Recorded investment	0	0
Construction | Doubtful | Originated
Credit Quality Information
Recorded investment	0	0
Construction | Doubtful | Acquired
Credit Quality Information
Recorded investment	0	0
Commercial
Credit Quality Information
Recorded investment	578,548	514,077
Commercial | Originated
Credit Quality Information
Recorded investment	548,727	462,730
Commercial | Acquired
Credit Quality Information
Recorded investment	29,821	51,347
Commercial | Pass | Originated
Credit Quality Information
Recorded investment	531,060	447,778
Commercial | Pass | Acquired
Credit Quality Information
Recorded investment	24,813	43,925
Commercial | OAEM | Originated
Credit Quality Information
Recorded investment	7,622	12,193
Commercial | OAEM | Acquired
Credit Quality Information
Recorded investment	1,021	1,852
Commercial | Substandard | Originated
Credit Quality Information
Recorded investment	9,171	1,671
Commercial | Substandard | Acquired
Credit Quality Information
Recorded investment	3,898	5,424
Commercial | Doubtful | Originated
Credit Quality Information
Recorded investment	874	1,088
Commercial | Doubtful | Acquired
Credit Quality Information
Recorded investment	89	146
Equipment Financing
Credit Quality Information
Recorded investment	648,447	601,424
Equipment Financing | Originated
Credit Quality Information
Recorded investment	637,411	587,496
Equipment Financing | Acquired
Credit Quality Information
Recorded investment	11,036	13,928
Equipment Financing | Pass | Originated
Credit Quality Information
Recorded investment	633,364	583,340
Equipment Financing | Pass | Acquired
Credit Quality Information
Recorded investment	11,036	13,795
Equipment Financing | OAEM | Originated
Credit Quality Information
Recorded investment	1,198	932
Equipment Financing | OAEM | Acquired
Credit Quality Information
Recorded investment	0	0
Equipment Financing | Substandard | Originated
Credit Quality Information
Recorded investment	1,369	2,338
Equipment Financing | Substandard | Acquired
Credit Quality Information
Recorded investment	0	133
Equipment Financing | Doubtful | Originated
Credit Quality Information
Recorded investment	1,480	886
Equipment Financing | Doubtful | Acquired
Credit Quality Information
Recorded investment	0	0
Condominium association
Credit Quality Information
Recorded investment	55,185	51,593
Condominium association | Originated
Credit Quality Information
Recorded investment	55,185	51,593
Condominium association | Acquired
Credit Quality Information
Recorded investment	0	0
Condominium association | Pass | Originated
Credit Quality Information
Recorded investment	55,185	51,593
Condominium association | Pass | Acquired
Credit Quality Information
Recorded investment	0	0
Condominium association | OAEM | Originated
Credit Quality Information
Recorded investment	0	0
Condominium association | OAEM | Acquired
Credit Quality Information
Recorded investment	0	0
Condominium association | Substandard | Originated
Credit Quality Information
Recorded investment	0	0
Condominium association | Substandard | Acquired
Credit Quality Information
Recorded investment	0	0
Condominium association | Doubtful | Originated
Credit Quality Information
Recorded investment	0	0
Condominium association | Doubtful | Acquired
Credit Quality Information
Recorded investment	0	0
Other Consumer
Credit Quality Information
Recorded investment	12,197	11,747
Other Consumer | Originated
Credit Quality Information
Recorded investment	12,058	11,580
Other Consumer | Acquired
Credit Quality Information
Recorded investment	139	167
Other Consumer | Pass | Originated
Credit Quality Information
Recorded investment	12,021	11,540
Other Consumer | Pass | Acquired
Credit Quality Information
Recorded investment	139	167
Other Consumer | OAEM | Originated
Credit Quality Information
Recorded investment	0	0
Other Consumer | OAEM | Acquired
Credit Quality Information
Recorded investment	0	0
Other Consumer | Substandard | Originated
Credit Quality Information
Recorded investment	37	40
Other Consumer | Substandard | Acquired
Credit Quality Information
Recorded investment	0	0
Other Consumer | Doubtful | Originated
Credit Quality Information
Recorded investment	0	0
Other Consumer | Doubtful | Acquired
Credit Quality Information
Recorded investment	0	0
Indirect Automobile
Credit Quality Information
Recorded investment	19,377	316,987
Indirect Automobile | Originated
Credit Quality Information
Recorded investment	$ 19,377	$ 316,987
Percentage of loans to aggregate outstanding amount	100.00%	100.00%
Indirect Automobile | Acquired
Credit Quality Information
Recorded investment	$ 0	$ 0
Indirect Automobile | Credit score, Over 700 | Originated
Credit Quality Information
Recorded investment	$ 7,665	$ 262,160
Percentage of loans to aggregate outstanding amount	39.60%	82.70%
Indirect Automobile | Credit score, 661-700 | Originated
Credit Quality Information
Recorded investment	$ 2,815	$ 43,422
Percentage of loans to aggregate outstanding amount	14.50%	13.70%
Indirect Automobile | Credit score, 660 and below | Originated
Credit Quality Information
Recorded investment	$ 8,762	$ 9,927
Percentage of loans to aggregate outstanding amount	45.20%	3.10%
Indirect Automobile | Data not available | Originated
Credit Quality Information
Recorded investment	$ 135	$ 1,478
Percentage of loans to aggregate outstanding amount	0.70%	0.50%
Residential mortgage
Credit Quality Information
Recorded investment	$ 603,073	$ 571,920
Percentage of loans to aggregate outstanding amount	100.00%	100.00%
Residential mortgage | Originated
Credit Quality Information
Recorded investment	$ 506,828	$ 472,078
Percentage of loans to aggregate outstanding amount	84.10%	82.60%
Residential mortgage | Acquired
Credit Quality Information
Recorded investment	$ 96,245	$ 99,842
Percentage of loans to aggregate outstanding amount	15.90%	17.40%
Residential mortgage | Loan-to-value ratio, less than 50% | Originated
Credit Quality Information
Recorded investment	$ 112,562	$ 105,342
Percentage of loans to aggregate outstanding amount	18.70%	18.40%
Residential mortgage | Loan-to-value ratio, less than 50% | Acquired
Credit Quality Information
Recorded investment	$ 20,598	$ 19,574
Percentage of loans to aggregate outstanding amount	3.40%	3.40%
Residential mortgage | Loan-to-value ratio, 50% - 69% | Originated
Credit Quality Information
Recorded investment	$ 204,585	$ 179,319
Percentage of loans to aggregate outstanding amount	33.90%	31.40%
Residential mortgage | Loan-to-value ratio, 50% - 69% | Acquired
Credit Quality Information
Recorded investment	$ 34,968	$ 35,131
Percentage of loans to aggregate outstanding amount	5.80%	6.20%
Residential mortgage | Loan-to-value ratio, 70% - 79% | Originated
Credit Quality Information
Recorded investment	$ 169,265	$ 166,467
Percentage of loans to aggregate outstanding amount	28.10%	29.10%
Residential mortgage | Loan-to-value ratio, 70% - 79% | Acquired
Credit Quality Information
Recorded investment	$ 21,280	$ 22,972
Percentage of loans to aggregate outstanding amount	3.50%	4.00%
Residential mortgage | Loan-to-value ratio, 80% and over | Originated
Credit Quality Information
Recorded investment	$ 18,758	$ 19,335
Percentage of loans to aggregate outstanding amount	3.10%	3.40%
Residential mortgage | Loan-to-value ratio, 80% and over | Acquired
Credit Quality Information
Recorded investment	$ 15,055	$ 16,268
Percentage of loans to aggregate outstanding amount	2.50%	2.80%
Residential mortgage | Data not available | Originated
Credit Quality Information
Recorded investment	$ 1,658	$ 1,615
Percentage of loans to aggregate outstanding amount	0.30%	0.30%
Residential mortgage | Data not available | Acquired
Credit Quality Information
Recorded investment	$ 4,344	$ 5,897
Percentage of loans to aggregate outstanding amount	0.70%	1.00%
Home Equity
Credit Quality Information
Recorded investment	$ 299,396	$ 287,058
Percentage of loans to aggregate outstanding amount	100.00%	100.00%
Home Equity | Originated
Credit Quality Information
Recorded investment	$ 206,835	$ 181,580
Percentage of loans to aggregate outstanding amount	69.10%	63.20%
Home Equity | Acquired
Credit Quality Information
Recorded investment	$ 92,561	$ 105,478
Percentage of loans to aggregate outstanding amount	30.90%	36.80%
Home Equity | Loan-to-value ratio, less than 50% | Originated
Credit Quality Information
Recorded investment	$ 114,866	$ 113,541
Percentage of loans to aggregate outstanding amount	38.40%	39.60%
Home Equity | Loan-to-value ratio, less than 50% | Acquired
Credit Quality Information
Recorded investment	$ 57,062	$ 70,293
Percentage of loans to aggregate outstanding amount	19.00%	24.50%
Home Equity | Loan-to-value ratio, 50% - 69% | Originated
Credit Quality Information
Recorded investment	$ 43,341	$ 35,660
Percentage of loans to aggregate outstanding amount	14.50%	12.40%
Home Equity | Loan-to-value ratio, 50% - 69% | Acquired
Credit Quality Information
Recorded investment	$ 22,208	$ 22,581
Percentage of loans to aggregate outstanding amount	7.40%	7.90%
Home Equity | Loan-to-value ratio, 70% - 79% | Originated
Credit Quality Information
Recorded investment	$ 31,228	$ 27,123
Percentage of loans to aggregate outstanding amount	10.40%	9.40%
Home Equity | Loan-to-value ratio, 70% - 79% | Acquired
Credit Quality Information
Recorded investment	$ 9,256	$ 10,569
Percentage of loans to aggregate outstanding amount	3.10%	3.70%
Home Equity | Loan-to-value ratio, 80% and over | Originated
Credit Quality Information
Recorded investment	$ 16,486	$ 4,195
Percentage of loans to aggregate outstanding amount	5.50%	1.50%
Home Equity | Loan-to-value ratio, 80% and over | Acquired
Credit Quality Information
Recorded investment	$ 3,248	$ 1,178
Percentage of loans to aggregate outstanding amount	1.10%	0.40%
Home Equity | Data not available | Originated
Credit Quality Information
Recorded investment	$ 914	$ 1,061
Percentage of loans to aggregate outstanding amount	0.30%	0.40%
Home Equity | Data not available | Acquired
Credit Quality Information
Recorded investment	$ 787	$ 857
Percentage of loans to aggregate outstanding amount	0.30%	0.30%

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Unaudited Consolidated Statements of Changes in Equity - USD ($) $ in Thousands		Total		Total Brookline Bancorp, Inc. Stockholders' Equity		Common Stock	Additional Paid-in Capital	Retained Earnings		Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Unallocated Common Stock Held by ESOP	Noncontrolling Interest in Subsidiary
Balance at Dec. 31, 2013		$ 618,716	[1]	$ 614,412	[1]	$ 757	$ 617,538	$ 65,448	[1]	$ (7,915)	$ (59,826)	$ (1,590)	$ 4,304
Increase (Decrease) in Stockholders' Equity
Net income attributable to Brookline Bancorp, Inc.	[1]	20,673		20,673				20,673
Net income attributable to noncontrolling interest in subsidiary		898	[1]										898
Issuance of noncontrolling units		60	[1]										60
Other comprehensive income (loss)		4,706	[1]	4,706	[1]					4,706
Common stock dividends	[1]	(11,928)		(11,928)				(11,928)
Dividend to owners of noncontrolling interest in subsidiary		(1,360)	[1]										(1,360)
Compensation under recognition and retention plans		435	[1]	435	[1]		96				339
Common stock held by ESOP committed to be released		185	[1]	185	[1]		75					110
Balance at Jun. 30, 2014		632,385	[1]	628,483	[1]	757	617,709	74,193	[1]	(3,209)	(59,487)	(1,480)	3,902
Balance at Dec. 31, 2014		646,605	[1]	641,818	[1]	757	617,475	84,860	[1]	(1,622)	(58,282)	(1,370)	4,787
Increase (Decrease) in Stockholders' Equity
Net income attributable to Brookline Bancorp, Inc.	[1]	23,568		23,568				23,568
Net income attributable to noncontrolling interest in subsidiary		1,296	[1]										1,296
Issuance of noncontrolling units		65	[1]										65
Other comprehensive income (loss)		(153)	[1]	(153)	[1]					(153)
Common stock dividends	[1]	(12,300)		(12,300)				(12,300)
Dividend to owners of noncontrolling interest in subsidiary		(1,072)	[1]										(1,072)
Compensation under recognition and retention plans		386	[1]	386	[1]		476				(90)
Common stock held by ESOP committed to be released		197	[1]	197	[1]		93					104
Balance at Jun. 30, 2015		$ 658,592	[1]	$ 653,516	[1]	$ 757	$ 618,044	$ 96,128	[1]	$ (1,775)	$ (58,372)	$ (1,266)	$ 5,076

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Derivatives and Hedging Activities (Details 2) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Asset Derivatives
Gross Amounts of Recognized Assets	$ 2,649	$ 2,676
Net Amounts Of Assets Presented in the Statement of Financial Position	2,649	2,676
Net Amount	2,649	2,676
Liability Derivatives
Gross Amounts of Recognized Liabilities	2,484	2,714
Net Amounts Of Liabilities Presented in the Statement of Financial Position	2,484	2,714
Gross Amounts Not Offset in the Statement of Financial Position
Financial Instruments	3,744	4,173
Cash Collateral Received	4,030	1,180
Net Amount	$ 10,258	$ 8,067

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Investment Securities (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Investment securities available-for-sale
Amortized Cost	$ 533,416,000	$ 553,588,000
Gross Unrealized Gains	2,478,000	3,128,000
Gross Unrealized Losses	5,418,000	5,955,000
Estimated fair value	530,476,000	550,761,000
Investment securities held-to-maturity
Amortized Cost	60,511,000	500,000
Gross Unrealized Gains	5,000	0
Gross Unrealized Losses	523,000	0
Estimated Fair Value	59,993,000	500,000
Net unrealized gain (loss), available-for-sale securities	(2,900,000)	(2,800,000)
Gross unrealized losses, fair value, available-for-sale securities	$ 340,064,000	$ 335,683,000
Percentage of securities in unrealized loss positions, available-for-sale securities	64.10%	60.90%
Net unrealized gain (loss), held-to-maturity securities	$ (500,000)
Gross unrealized losses, fair value, held-to-maturity securities	$ 57,582,000
Percentage of securities unrealized loss positions, held-to-maturity securities	96.00%
Available for sale securities pledged as collateral	$ 490,000,000	$ 473,100,000
Debt securities
Investment securities available-for-sale
Amortized Cost	532,465,000	552,641,000
Gross Unrealized Gains	2,456,000	3,102,000
Gross Unrealized Losses	5,418,000	5,955,000
Estimated fair value	529,503,000	549,788,000
GSEs
Investment securities available-for-sale
Amortized Cost	18,519,000	22,929,000
Gross Unrealized Gains	125,000	88,000
Gross Unrealized Losses	94,000	29,000
Estimated fair value	18,550,000	22,988,000
Investment securities held-to-maturity
Amortized Cost	26,925,000
Gross Unrealized Gains	0
Gross Unrealized Losses	197,000
Estimated Fair Value	26,728,000
Gross unrealized losses, fair value, available-for-sale securities	7,993,000	11,086,000
Gross unrealized losses, fair value, held-to-maturity securities	26,728,000
GSE CMOs
Investment securities available-for-sale
Amortized Cost	218,039,000	238,910,000
Gross Unrealized Gains	110,000	80,000
Gross Unrealized Losses	3,752,000	4,821,000
Estimated fair value	214,397,000	234,169,000
GSE MBSs
Investment securities available-for-sale
Amortized Cost	254,410,000	249,329,000
Gross Unrealized Gains	1,816,000	2,531,000
Gross Unrealized Losses	1,424,000	879,000
Estimated fair value	254,802,000	250,981,000
Investment securities held-to-maturity
Amortized Cost	20,993,000
Gross Unrealized Gains	0
Gross Unrealized Losses	218,000
Estimated Fair Value	20,775,000
SBA commercial loan asset-backed securities
Investment securities available-for-sale
Amortized Cost	180,000	205,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	1,000	2,000
Estimated fair value	179,000	203,000
Investment securities held-to-maturity
Gross unrealized losses, fair value, available-for-sale securities	170,000	194,000
Corporate debt obligations
Investment securities available-for-sale
Amortized Cost	39,852,000	39,805,000
Gross Unrealized Gains	405,000	403,000
Gross Unrealized Losses	3,000	1,000
Estimated fair value	40,254,000	40,207,000
Investment securities held-to-maturity
Net unrealized gain (loss), available-for-sale securities	400,000	400,000
Gross unrealized losses, fair value, available-for-sale securities	4,059,000	4,069,000
Trust preferred securities
Investment securities available-for-sale
Amortized Cost	1,465,000	1,463,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	144,000	223,000
Estimated fair value	1,321,000	1,240,000
Investment securities held-to-maturity
Net unrealized gain (loss), available-for-sale securities	(100,000)	(200,000)
Gross unrealized losses, fair value, available-for-sale securities	1,321,000	1,240,000
Municipal obligations
Investment securities held-to-maturity
Amortized Cost	12,093,000
Gross Unrealized Gains	5,000
Gross Unrealized Losses	108,000
Estimated Fair Value	11,990,000
Gross unrealized losses, fair value, held-to-maturity securities	10,079,000
Foreign government securities
Investment securities held-to-maturity
Amortized Cost	500,000	500,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	500,000	500,000
Marketable equity securities
Investment securities available-for-sale
Amortized Cost	951,000	947,000
Gross Unrealized Gains	22,000	26,000
Gross Unrealized Losses	0	0
Estimated fair value	$ 973,000	$ 973,000

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Fair Value of Financial Instruments (Details 4) - Level 3 - Appraisal of collateral - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Collateral-dependent impaired loans and leases
Quantitative information for Level 3 Fair Value Measurements Assets
Fair value of assets	$ 17,387	$ 6,376
OREO
Quantitative information for Level 3 Fair Value Measurements Assets
Fair value of assets	$ 1,676	$ 953

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Off-Balance-Sheet Financial Instruments

The Company is party to off-balance-sheet financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include loan commitments, standby and commercial letters of credit, and interest-rate swaps. According to GAAP, these financial instruments are not recorded in the financial statements until they are funded or related fees are incurred or received.

The contract amounts reflect the extent of the involvement the Company has in particular classes of these instruments. Such commitments involve, to varying degrees, elements of credit risk and interest-rate risk in excess of the amount recognized in the consolidated balance sheet. The Company’s exposure to credit loss in the event of non-performance by the counterparty is represented by the contractual amount of the instruments. The Company uses the same policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.

Financial instruments with off-balance-sheet risk at the dates indicated follow:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to originate loans and leases:
Commercial real estate	$	48,538	$	107,179
Commercial	64,611		102,353
Residential mortgage	11,267		20,520
Unadvanced portion of loans and leases	533,214		629,351
Unused lines of credit:
Home equity	256,468		244,603
Other consumer	13,257		10,876
Other commercial	816		728
Unused letters of credit:
Financial standby letters of credit	17,781		16,762
Performance standby letters of credit	342		3,126
Commercial and similar letters of credit	223		50
Back-to-back interest-rate swaps	224,748		109,362

Commitments to extend credit are agreements to lend to a customer 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 the payment of a fee by the customer. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if any, is based on management’s credit evaluation of the borrower.

Standby and commercial letters of credit are conditional commitments issued by the Company to guarantee performance of a customer to a third party. These standby and commercial letters of credit are primarily issued to support the financing needs of the Company’s commercial customers. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers.

The liability for unfunded credit commitments, which is included in other liabilities, was $1.4 million at June 30, 2015 and $1.3 million at December 31, 2014.

From time to time, the Company enters into back-to-back interest rate swaps with commercial customers and third-party financial institutions. These swaps allow the Company to offer long-term fixed-rate commercial loans while mitigating the interest-rate risk of holding those loans. In a back-to-back interest rate swap transaction, the Company lends to a commercial customer on a floating-rate basis and then enters into an interest rate swap with that customer. Concurrently, the Company enters into offsetting swaps with a third-party financial institution, effectively minimizing its net interest-rate risk exposure resulting from such transactions.

The fair value of interest rate swap assets and liabilities was $2.6 million and $2.5 million, respectively, at June 30, 2015. The fair value of interest rate swap assets and liabilities was $2.7 million and $2.7 million, respectively, at December 31, 2014.

Lease Commitments

 The Company leases certain office space under various noncancellable operating leases. These leases have original terms ranging from 5 years to over 20 years. Certain leases contain renewal options and escalation clauses which can increase rental expenses based principally on the consumer price index and fair market rental value provisions.

A summary of future minimum rental payments under such leases at the dates indicated follows:

	Minimum Rental Payments
	(In Thousands)
Remainder of 2015	$	2,749
Year ending:
2016	5,344
2017	4,820
2018	4,265
2019	3,353
Thereafter	12,266
Total	$	32,797

The leases contain escalation clauses for real estate taxes and other expenditures. Total rental expense was $2.6 million during the six months ended June 30, 2015, with minimal lease acceleration. This compared to rental expense of $3.6 million during the six months ended June 30, 2014, which included $0.8 million in lease acceleration related to a relocation of an operations center and a closure of a branch property.

Legal Proceedings

There are various outstanding legal proceedings in the normal course of business. In the opinion of management, after consulting with legal counsel, the consolidated financial position and results of operations of the Company are not expected to be affected by the outcome of such proceedings.

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Investment Securities (Details 2) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Available-for-sale
Less than twelve months, estimated fair value	$ 210,130	$ 104,357
Less than twelve months, unrealized losses	1,627	293
Twelve months or longer, estimated fair value	129,934	231,326
Twelve months or longer, unrealized losses	3,791	5,662
Total, estimated fair value	340,064	335,683
Total, unrealized losses	5,418	5,955
Held-to-maturity
Less than twelve months, estimated fair value	57,582
Less than twelve months, unrealized losses	523
Twelve months or longer, estimated fair value	0
Twelve months or longer, unrealized losses	0
Total, estimated fair value	57,582
Total, unrealized losses	523
Available-for-sale and Held-to-maturity
Less than twelve months, estimated fair value	267,712
Less than twelve months, unrealized losses	2,150
Twelve months or longer, estimated fair value	129,934
Twelve months or longer, unrealized losses	3,791
Total, estimated fair value	397,646
Total, unrealized losses	5,941
GSE
Available-for-sale
Less than twelve months, estimated fair value	7,993	11,086
Less than twelve months, unrealized losses	94	29
Twelve months or longer, estimated fair value	0	0
Twelve months or longer, unrealized losses	0	0
Total, estimated fair value	7,993	11,086
Total, unrealized losses	94	29
Held-to-maturity
Less than twelve months, estimated fair value	26,728
Less than twelve months, unrealized losses	197
Twelve months or longer, estimated fair value	0
Twelve months or longer, unrealized losses	0
Total, estimated fair value	26,728
Total, unrealized losses	197
GSE CMOs
Available-for-sale
Less than twelve months, estimated fair value	95,459	39,095
Less than twelve months, unrealized losses	782	179
Twelve months or longer, estimated fair value	110,243	190,345
Twelve months or longer, unrealized losses	2,970	4,642
Total, estimated fair value	205,702	229,440
Total, unrealized losses	3,752	4,821
GSE MBS
Available-for-sale
Less than twelve months, estimated fair value	102,612	50,099
Less than twelve months, unrealized losses	748	84
Twelve months or longer, estimated fair value	18,207	39,555
Twelve months or longer, unrealized losses	676	795
Total, estimated fair value	120,819	89,654
Total, unrealized losses	1,424	879
Held-to-maturity
Less than twelve months, estimated fair value	20,775
Less than twelve months, unrealized losses	218
Twelve months or longer, estimated fair value	0
Twelve months or longer, unrealized losses	0
Total, estimated fair value	20,775
Total, unrealized losses	218
SBA commercial loan asset-backed securities
Available-for-sale
Less than twelve months, estimated fair value	7	8
Less than twelve months, unrealized losses	0	0
Twelve months or longer, estimated fair value	163	186
Twelve months or longer, unrealized losses	1	2
Total, estimated fair value	170	194
Total, unrealized losses	1	2
Corporate debt obligations
Available-for-sale
Less than twelve months, estimated fair value	4,059	4,069
Less than twelve months, unrealized losses	3	1
Twelve months or longer, estimated fair value	0	0
Twelve months or longer, unrealized losses	0	0
Total, estimated fair value	4,059	4,069
Total, unrealized losses	3	1
Trust preferred securities
Available-for-sale
Less than twelve months, estimated fair value	0	0
Less than twelve months, unrealized losses	0	0
Twelve months or longer, estimated fair value	1,321	1,240
Twelve months or longer, unrealized losses	144	223
Total, estimated fair value	1,321	1,240
Total, unrealized losses	144	$ 223
Municipal obligations
Held-to-maturity
Less than twelve months, estimated fair value	10,079
Less than twelve months, unrealized losses	108
Twelve months or longer, estimated fair value	0
Twelve months or longer, unrealized losses	0
Total, estimated fair value	10,079
Total, unrealized losses	$ 108

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Investment Securities (Tables)

6 Months Ended

Jun. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Schedule of securities available-for-sale securities

The following tables set forth investment securities available-for-sale and held-to-maturity at the dates indicated:

	At June 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	18,519	$	125	$	94	$	18,550
GSE CMOs	218,039		110		3,752		214,397
GSE MBSs	254,410		1,816		1,424		254,802
SBA commercial loan asset-backed securities	180		—		1		179
Corporate debt obligations	39,852		405		3		40,254
Trust preferred securities	1,465		—		144		1,321
Total debt securities	532,465		2,456		5,418		529,503
Marketable equity securities	951		22		—		973
Total investment securities available-for-sale	$	533,416	$	2,478	$	5,418	$	530,476
Investment securities held-to-maturity:
GSEs	$	26,925	$	—	$	197	$	26,728
GSEs MBSs	20,993		—		218		20,775
Municipal obligations	12,093		5		108		11,990
Foreign government securities	500		—		—		500
Total investment securities held-to-maturity	$	60,511	$	5	$	523	$	59,993

	At December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	22,929	$	88	$	29	$	22,988
GSE CMOs	238,910		80		4,821		234,169
GSE MBSs	249,329		2,531		879		250,981
SBA commercial loan asset-backed securities	205		—		2		203
Corporate debt obligations	39,805		403		1		40,207
Trust preferred securities	1,463		—		223		1,240
Total debt securities	552,641		3,102		5,955		549,788
Marketable equity securities	947		26		—		973
Total investment securities available-for-sale	$	553,588	$	3,128	$	5,955	$	550,761
Investment securities held-to-maturity:
Foreign government securities	500		—		—		500
Total investment securities held-to-maturity	$	500	$	—	$	—	$	500

Investment securities in a continuous unrealized loss position

Investment securities available-for-sale at June 30, 2015 and December 31, 2014 that have been in a continuous unrealized loss position for less than twelve months or twelve months or longer are as follows:

	At June 30, 2015
	Less than Twelve Months				Twelve Months or Longer				Total
	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
	(In Thousands)
Investment securities available-for-sale:
GSEs	$	7,993	$	94	$	—	$	—	$	7,993	$	94
GSE CMOs	95,459		782		110,243		2,970		205,702		3,752
GSE MBSs	102,612		748		18,207		676		120,819		1,424
SBA commercial loan asset-backed securities	7		—		163		1		170		1
Corporate debt obligations	4,059		3		—		—		4,059		3
Trust preferred securities	—		—		1,321		144		1,321		144
Temporarily impaired debt securities available-for-sale	210,130		1,627		129,934		3,791		340,064		5,418
Investment securities held-to-maturity:
GSEs	26,728		197		—		—		26,728		197
GSEs MBSs	20,775		218		—		—		20,775		218
Municipal obligations	10,079		108		—		—		10,079		108
Temporarily impaired debt securities held-to-maturity	57,582		523		—		—		57,582		523
Total temporarily impaired investment securities	$	267,712	$	2,150	$	129,934	$	3,791	$	397,646	$	5,941

	At December 31, 2014
	Less than Twelve Months				Twelve Months or Longer				Total
	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
	(In Thousands)
Investment securities available-for-sale:
GSEs	$	11,086	$	29	$	—	$	—	$	11,086	$	29
GSE CMOs	39,095		179		190,345		4,642		229,440		4,821
GSE MBSs	50,099		84		39,555		795		89,654		879
SBA commercial loan asset-backed securities	8		—		186		2		194		2
Corporate debt obligations	4,069		1		—		—		4,069		1
Trust preferred securities	—		—		1,240		223		1,240		223
Total temporarily impaired investment securities available-for-sale	$	104,357	$	293	$	231,326	$	5,662	$	335,683	$	5,955

Schedule of maturities of debt securities

The final stated maturities of the debt securities are as follows at the dates indicated:

	At June 30, 2015						At December 31, 2014
	Amortized Cost		Estimated Fair Value		Weighted Average Rate		Amortized Cost		Estimated Fair Value		Weighted Average Rate
	(Dollars in Thousands)
Investment securities available-for-sale:
Within 1 year	$	6,151	$	6,174	2.35	%	$	3,057	$	3,081	3.00	%
After 1 year through 5 years	49,500		50,318		2.50	%	55,631		56,586		2.48	%
After 5 years through 10 years	90,390		90,955		1.98	%	103,268		104,208		2.00	%
Over 10 years	386,424		382,056		1.96	%	390,685		385,913		1.91	%
	$	532,465	$	529,503	2.02	%	$	552,641	$	549,788	1.99	%
Investment securities held-to-maturity:
Within 1 year	$	500	$	500	1.30	%	$	—	$	—	—	%
After 1 year through 5 years	11,336		11,312		1.58	%	500		500		1.30	%
After 5 years through 10 years	27,682		27,406		2.15	%	—		—		—	%
Over 10 years	20,993		20,775		1.65	%	—		—		—	%
	$	60,511	$	59,993	1.86	%	$	500	$	500	1.30	%

Schedule of sales of investment securities

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	(In Thousands)
Sales of debt securities	$	5,083		$	5,083
Gross gains from sales	302			302
Gross losses from sales	315			315
Loss on sales of securities, net	$	(13	)	$	(13	)

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Unaudited Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Common stock dividends, per share (in dollars per share)	$ 0.175	$ 0.17
Common stock held by ESOP committed to be released, shares	19,158	20,142

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Unaudited Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Investment securities held-to-maturity, fair value	$ 59,993	$ 500
Premises and equipment, accumulated depreciation and amortization	48,216	44,668
Identified intangible assets, accumulated amortization	$ 27,700	$ 26,238
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	75,744,445	75,744,445
Treasury stock, shares	5,048,525	5,040,571
Unallocated common stock held by ESOP, shares	232,224	251,382

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Comprehensive Income/(Loss)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Comprehensive Income/(Loss)

Comprehensive Income/(Loss)

Comprehensive income (loss) represents the sum of net income (loss) and other comprehensive income (loss). For the three and six months endedJune 30, 2015 and June 30, 2014, the Company’s other comprehensive income (loss) include the following two components: (i) unrealized holding gains (losses) on investment securities available-for-sale; and (ii) adjustment of accumulated obligation for postretirement benefits.

Changes in accumulated other comprehensive (loss) income by component, net of tax, were as follows for the periods indicated:

	Three Months Ended June 30, 2015
	Investment Securities Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at March 31, 2015	$	1,636		$	111	$	1,747
Other comprehensive loss	(3,522		)	—		(3,522		)
Balance at June 30, 2015	$	(1,886	)	$	111	$	(1,775	)

	Three Months Ended June 30, 2014
	Investment Securities  Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at March 31, 2014	$	(6,301	)	$	365	$	(5,936	)
Other comprehensive income	2,727			—		2,727
Balance at June 30, 2014	$	(3,574	)	$	365	$	(3,209	)

	Six Months Ended June 30, 2015
	Investment Securities Available-for-Sale			Postretirement Benefits		Accumulated Other Comprehensive Income
	(In Thousands)
Balance at December 31, 2014	$	(1,733	)	$	111	$	(1,622	)
Other comprehensive loss	(153		)	—		(153		)
Balance at June 30, 2015	$	(1,886	)	$	111	$	(1,775	)

	Six Months Ended June 30, 2014
	Investment Securities Available-for-Sale			Postretirement Benefits			Accumulated Other Comprehensive Income
	(In Thousands)
Balance at December 31, 2013	$	(8,332	)	$	417		$	(7,915	)
Other comprehensive income (loss)	4,758			(52		)	4,706
Balance at June 30, 2014	$	(3,574	)	$	365		$	(3,209	)

The following is a summary of the amounts reclassified from accumulated other comprehensive income (loss) for the three and six months endedJune 30, 2014.

	Three Months Ended			Six Months Ended			Income Statement Line Affected by Reclassification
	June 30, 2014			June 30, 2014
	(In Thousands)
Other comprehensive income (loss) component
Unrealized gains (losses) on investment securities available-for-sale	$	(13	)	$	(13	)	Loss on sales of securities, net
	5			5			Provision for income taxes
Total reclassifications for the period	$	(8	)	$	(8	)	Net income

The Company did not reclassify any amounts out of accumulated other comprehensive income (loss) for the three and six months endedJune 30, 2015.

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 07, 2015
Document and Entity Information
Entity Registrant Name	BROOKLINE BANCORP INC
Entity Central Index Key	0001049782
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		70,121,016

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Derivatives and Hedging Activities

6 Months Ended

Jun. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

The Company may use interest-rate contracts (swaps, caps and floors) as part of interest-rate risk management strategy. Interest-rate swap, cap and floor agreements are entered into as hedges against future interest-rate fluctuations on specifically identified assets or liabilities. The Company did not have derivative fair value hedges or derivative cash flow hedges at June 30, 2015 or December 31, 2014.

Derivatives not designated as hedges are not speculative but rather, result from a service the Company provides to certain customers for a fee. The Company executes interest-rate swaps with commercial banking customers to aid them in managing their interest-rate risk. The interest-rate swap contracts allow the commercial banking customers to convert floating-rate loan payments to fixed-rate loan payments. The Company concurrently enters into offsetting swaps with a third-party financial institution, effectively minimizing its net risk exposure resulting from such transactions. The third-party financial institution exchanges the customer’s fixed-rate loan payments for floating-rate loan payments. As the interest-rate swaps associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in the Company's unaudited consolidated statements of income. The Company had 34 interest-rate swaps related to this program with an aggregate notional amount of $224.7 million at June 30, 2015, compared with 22 interest-rate swaps with an aggregate notional amount of $109.4 million at December 31, 2014.

Asset derivatives and liability derivatives are included in other assets and accrued expenses and other liabilities on the unaudited consolidated balance sheets, respectively. The table below presents the fair value and classification of the Company’s derivative financial instruments at June 30, 2015 and December 31, 2014.

	At June 30, 2015				At December 31, 2014
	Asset Derivatives		Liability Derivatives		Asset Derivatives		Liability Derivatives
	(In Thousands)
Total derivatives (interest-rate products) not designated as hedging instruments	$	2,649	$	2,484	$	2,676	$	2,714

Changes in the fair value are recognized directly in the Company's unaudited consolidated statements of income and are included in other non-interest income in the consolidated statements of income. The table below presents the gain recognized in income due to changes in the fair value for the three and six months endedJune 30, 2015 and June 30, 2014.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In Thousands)
Gain recognized in income on derivatives	$	295	$	4	$	204	$	6

By using derivative financial instruments, the Company exposes itself to credit risk which is the risk of failure by the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is positive, the counterparty owes the Company, which creates credit risk for the Company. When the fair value of a derivative is negative, the Company owes the counterparty and, therefore, it does not possess credit risk. The credit risk in derivative instruments is mitigated by entering into transactions with highly-rated counterparties that management believes to be creditworthy and by limiting the amount of exposure to each counterparty. As the swaps are subject to master netting agreements, the Company had limited exposure relating to interest rate swaps with institutional counterparties. The Company had no net credit risk exposure at June 30, 2015. The estimated net credit risk exposure was $38.0 thousand at December 31, 2014.

Certain derivative agreements contain provisions that require the Company to post collateral if the derivative exposure exceeds a threshold amount. The Company has posted collateral of $7.8 million and $5.4 million in the normal course of business at June 30, 2015 and December 31, 2014, respectively.

The tables below present the offsetting of derivatives and amounts subject to master netting agreements not offset in the unaudited consolidated balance sheet at the dates indicated.

	At June 30, 2015
	Gross Amounts of Recognized Assets /Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets Presented in the Statement of Financial Position		Gross Amounts Not Offset in the Statement of Financial Position				Net Amount
							Financial Instruments		Cash Collateral (Received)/ Posted
	(In Thousands)
Asset Derivatives	$	2,649	$	—	$	2,649	$	—	$	—	$	2,649
Liability Derivatives	$	2,484	$	—	$	2,484	$	3,744	$	4,030	$	10,258

	At December 31, 2014
	Gross Amounts of Recognized Assets /Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets Presented in the Statement of Financial Position		Gross Amounts Not Offset in the Statement of Financial Position				Net Amount
							Financial Instruments		Cash Collateral (Received) / Posted
	(In Thousands)
Asset Derivatives	$	2,676	$	—	$	2,676	$	—	$	—	$	2,676
Liability Derivatives	$	2,714	$	—	$	2,714	$	4,173	$	1,180	$	8,067

The Company has agreements with certain of its derivative counterparties that contain credit-risk-related contingent provisions. These provisions provide the counterparty with the right to terminate its derivative positions and require the Company to settle its obligations under the agreements if the Company defaults on certain of its indebtedness or if the Company fails to maintain its status as a well-capitalized institution.

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Unaudited Consolidated Statements of Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Interest and dividend income:
Loans and leases		$ 51,684	$ 50,433	$ 105,065		$ 102,375
Debt securities		2,931	2,360	5,614		4,619
Marketable and restricted equity securities		491	539	1,015		988
Short-term investments		60	14	81		58
Total interest and dividend income		55,166	53,346	111,775		108,040
Interest expense:
Deposits		4,296	4,201	8,600		8,492
Borrowed funds		3,698	2,711	7,475		5,380
Total interest expense		7,994	6,912	16,075		13,872
Net interest income		47,172	46,434	95,700		94,168
Provision for credit losses		1,913	2,276	4,176		4,719
Net interest income after provision for credit losses		45,259	44,158	91,524		89,449
Non-interest income:
Deposit fees		2,195	2,204	4,261		4,163
Loan fees		271	126	613		560
Loan level derivative income		941	62	941		62
Loss on sales of securities, net		0	(13)	0		(13)
Gain on sales of loans and leases held-for-sale		279	54	1,148		656
(Loss)/gain on sale/disposals of premises and equipment, net		0	(6)	0		1,504
Other		1,181	1,395	2,374		2,518
Total non-interest income	[1]	4,867	3,822	9,337		9,450
Non-interest expense:
Compensation and employee benefits		17,085	17,295	34,609		35,327
Occupancy		3,437	3,154	6,909		7,559
Equipment and data processing		3,680	4,348	7,700		8,725
Professional services		1,163	1,480	2,257		3,207
FDIC insurance		831	847	1,698		1,707
Advertising and marketing		823	776	1,571		1,441
Amortization of identified intangible assets		724	827	1,462		1,688
Other		2,709	2,488	5,572		5,137
Total non-interest expense		30,452	31,215	61,778		64,791
Income before provision for income taxes	[1]	19,674	16,765	39,083		34,108
Provision for income taxes	[1]	7,115	6,158	14,219		12,537
Net income before noncontrolling interest in subsidiary	[1]	12,559	10,607	24,864		21,571
Less net income attributable to noncontrolling interest in subsidiary		694	476	1,296	[1]	898	[1]
Net income attributable to Brookline Bancorp, Inc.	[1]	$ 11,865	$ 10,131	$ 23,568		$ 20,673
Earnings per common share:
Basic (in dollars per share)	[1]	$ 0.17	$ 0.15	$ 0.34		$ 0.30
Diluted (in dollars per share)	[1]	$ 0.17	$ 0.14	$ 0.34		$ 0.29
Weighted average common shares outstanding during the period:
Basic (in shares)		70,049,829	69,886,576	70,042,997		69,881,055
Diluted (in shares)		70,215,850	70,012,377	70,190,015		69,998,219
Dividends declared per common share		$ 0.09	$ 0.085	$ 0.175		$ 0.17

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Loans and Leases

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Loans and Leases

Loans and Leases

The following tables present loan and lease balances and weighted average coupon rates for the originated and acquired loan and lease portfolios at the dates indicated:

	At June 30, 2015
	Originated				Acquired				Total
	Balance		Weighted Average Coupon		Balance		Weighted Average Coupon		Balance		Weighted Average Coupon
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,530,765	4.06	%	$	227,516	4.19	%	$	1,758,281	4.08	%
Multi-family mortgage	576,392		4.06	%	51,179		4.45	%	627,571		4.09	%
Construction	126,975		3.67	%	531		4.97	%	127,506		3.68	%
Total commercial real estate loans	2,234,132		4.04	%	279,226		4.24	%	2,513,358		4.06	%
Commercial loans and leases:
Commercial	548,727		3.80	%	29,821		4.97	%	578,548		3.86	%
Equipment financing	637,411		6.88	%	11,036		6.07	%	648,447		6.87	%
Condominium association	55,185		4.54	%	—		—	%	55,185		4.54	%
Total commercial loans and leases	1,241,323		5.41	%	40,857		5.27	%	1,282,180		5.41	%
Indirect automobile loans	19,377		5.61	%	—		—	%	19,377		5.61	%
Consumer loans:
Residential mortgage	506,828		3.62	%	96,245		3.87	%	603,073		3.66	%
Home equity	206,835		3.32	%	92,561		3.87	%	299,396		3.50	%
Other consumer	12,058		4.98	%	139		16.80	%	12,197		5.12	%
Total consumer loans	725,721		3.56	%	188,945		3.88	%	914,666		3.63	%
Total loans and leases	$	4,220,553	4.37	%	$	509,028	4.19	%	$	4,729,581	4.35	%

	At December 31, 2014
	Originated				Acquired				Total
	Balance		Weighted Average Coupon		Balance		Weighted Average Coupon		Balance		Weighted Average Coupon
	(Dollars in Thousands)
Commercial real estate loans:
Commercial real estate mortgage	$	1,425,621	4.18	%	$	254,461	4.29	%	$	1,680,082	4.20	%
Multi-family mortgage	576,214		4.11	%	63,492		4.50	%	639,706		4.15	%
Construction	146,074		3.79	%	1,939		5.50	%	148,013		3.81	%
Total commercial real estate loans	2,147,909		4.13	%	319,892		4.34	%	2,467,801		4.16	%
Commercial loans and leases:
Commercial	462,730		3.88	%	51,347		4.14	%	514,077		3.91	%
Equipment financing	587,496		6.92	%	13,928		6.22	%	601,424		6.90	%
Condominium association	51,593		4.60	%	—		—	%	51,593		4.60	%
Total commercial loans and leases	1,101,819		5.53	%	65,275		4.58	%	1,167,094		5.48	%
Indirect automobile loans	316,987		4.47	%	—		—	%	316,987		4.47	%
Consumer loans:
Residential mortgage	472,078		3.60	%	99,842		3.77	%	571,920		3.63	%
Home equity	181,580		3.35	%	105,478		3.85	%	287,058		3.53	%
Other consumer	11,580		5.13	%	167		16.35	%	11,747		5.29	%
Total consumer loans	665,238		3.56	%	205,487		3.82	%	870,725		3.62	%
Total loans and leases	$	4,231,953	4.43	%	$	590,654	4.19	%	$	4,822,607	4.40	%

The Company lends primarily in the eastern half of Massachusetts, southern New Hampshire and Rhode Island, with the exception of equipment financing, 34.5% of which is in the greater New York/New Jersey metropolitan area and 65.5% of which is in other areas in the United States of America at June 30, 2015, compared to 35.9% of which is in the greater New York/New Jersey metropolitan area and 64.1% of which is in other areas in the United States of America at December 31, 2014.

Competition for the indirect automobile loans increased significantly as credit unions and large national banks entered indirect automobile lending in a search for additional sources of income. That competition drove interest rates down and, in some cases, changed the manner in which interest rates are developed, from including a dealer-shared spread to imposing a dealer-based fee to originate the loan. Given this market condition, management ceased the Company's origination of indirect automobile loans in December 2014. For the quarter ended March 31, 2015, the Company sold over 90% of the portfolio for $255.2 million, which resulted in a loss of $11.8 thousand. Refer to Note 5, "Allowance for Loan and Lease Losses" for the impact of the sale on the Company's allowance for loan and lease losses.

Accretable Yield for the Acquired Loan Portfolio

The following table summarizes activity in the accretable yield for the acquired loan portfolio for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Balance at beginning of period	$	30,660		$	42,501		$	32,044		$	45,789
Reclassification from nonaccretable difference for loans with improved cash flows	682			214			2,122			1,654
Accretion	(2,612		)	(4,537		)	(5,436		)	(9,265		)
Balance at end of period	$	28,730		$	38,178		$	28,730		$	38,178

On a quarterly basis, subsequent to acquisition, management reforecasts the expected cash flows for acquired ASC 310-30 loans, taking into account prepayment speeds, probability of default and loss given defaults. Management compares cash flow projections per the reforecast to the original cash flow projections and determines whether any reduction in cash flow expectations is due to credit deterioration, or if the change in cash flow is related to noncredit events. This cash flow analysis is used to evaluate the need for a loan loss provision and/or prospective yield adjustments. During the six months endedJune 30, 2015 and 2014, accretable yield adjustments totaling $2.1 million and $1.7 million, respectively, were made for certain loan pools. These prospective accretable yield adjustments, which are subject to continued re-assessment, will be recognized over the remaining lives of those pools.

The aggregate remaining nonaccretable difference (representing both principal and interest) applicable to acquired loans and leases totaled $1.5 million and $3.6 million at June 30, 2015 and December 31, 2014, respectively.

Loans and Leases Pledged as Collateral

At June 30, 2015 and December 31, 2014, there were $1.9 billion and $1.6 billion, respectively, of loans and leases pledged as collateral for repurchase agreements; municipal deposits; treasury, tax and loan deposits; swap agreements; and FHLBB borrowings. The Banks did not have any outstanding FRB borrowings at June 30, 2015 and December 31, 2014.

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Investment Securities

6 Months Ended

Jun. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

The following tables set forth investment securities available-for-sale and held-to-maturity at the dates indicated:

	At June 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	18,519	$	125	$	94	$	18,550
GSE CMOs	218,039		110		3,752		214,397
GSE MBSs	254,410		1,816		1,424		254,802
SBA commercial loan asset-backed securities	180		—		1		179
Corporate debt obligations	39,852		405		3		40,254
Trust preferred securities	1,465		—		144		1,321
Total debt securities	532,465		2,456		5,418		529,503
Marketable equity securities	951		22		—		973
Total investment securities available-for-sale	$	533,416	$	2,478	$	5,418	$	530,476
Investment securities held-to-maturity:
GSEs	$	26,925	$	—	$	197	$	26,728
GSEs MBSs	20,993		—		218		20,775
Municipal obligations	12,093		5		108		11,990
Foreign government securities	500		—		—		500
Total investment securities held-to-maturity	$	60,511	$	5	$	523	$	59,993

	At December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(In Thousands)
Investment securities available-for-sale:
Debt securities:
GSEs	$	22,929	$	88	$	29	$	22,988
GSE CMOs	238,910		80		4,821		234,169
GSE MBSs	249,329		2,531		879		250,981
SBA commercial loan asset-backed securities	205		—		2		203
Corporate debt obligations	39,805		403		1		40,207
Trust preferred securities	1,463		—		223		1,240
Total debt securities	552,641		3,102		5,955		549,788
Marketable equity securities	947		26		—		973
Total investment securities available-for-sale	$	553,588	$	3,128	$	5,955	$	550,761
Investment securities held-to-maturity:
Foreign government securities	500		—		—		500
Total investment securities held-to-maturity	$	500	$	—	$	—	$	500

At June 30, 2015, the fair value of all investment securities available-for-sale was $530.5 million, with net unrealized losses of $2.9 million, compared to a fair value of $550.8 million and net unrealized losses of $2.8 million at December 31, 2014. At June 30, 2015, $340.1 million, or 64.1% of the portfolio, had gross unrealized losses of $5.4 million, compared to $335.7 million, or 60.9%, with gross unrealized losses of $6.0 million at December 31, 2014.

At June 30, 2015, the fair value of all investment securities held-to-maturity was $60.0 million, with net unrealized losses of $0.5 million, compared to a fair value of $0.5 million with no unrealized losses at December 31, 2014. At June 30, 2015, $57.6 million, or 96.0% of the portfolio, had gross unrealized losses of $0.5 million. There were no investment securities held-to-maturity with net unrealized losses at December 31, 2014.

Investment Securities as Collateral

At June 30, 2015 and December 31, 2014, respectively, $490.0 million and $473.1 million of investment securities available-for-sale were pledged as collateral for repurchase agreements; municipal deposits; treasury, tax and loan deposits; swap agreements; and FHLBB borrowings. No investment securities held-to-maturity were pledged as collateral at these dates.

Other-Than-Temporary Impairment (“OTTI”)

Investment securities available-for-sale at June 30, 2015 and December 31, 2014 that have been in a continuous unrealized loss position for less than twelve months or twelve months or longer are as follows:

	At June 30, 2015
	Less than Twelve Months				Twelve Months or Longer				Total
	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
	(In Thousands)
Investment securities available-for-sale:
GSEs	$	7,993	$	94	$	—	$	—	$	7,993	$	94
GSE CMOs	95,459		782		110,243		2,970		205,702		3,752
GSE MBSs	102,612		748		18,207		676		120,819		1,424
SBA commercial loan asset-backed securities	7		—		163		1		170		1
Corporate debt obligations	4,059		3		—		—		4,059		3
Trust preferred securities	—		—		1,321		144		1,321		144
Temporarily impaired debt securities available-for-sale	210,130		1,627		129,934		3,791		340,064		5,418
Investment securities held-to-maturity:
GSEs	26,728		197		—		—		26,728		197
GSEs MBSs	20,775		218		—		—		20,775		218
Municipal obligations	10,079		108		—		—		10,079		108
Temporarily impaired debt securities held-to-maturity	57,582		523		—		—		57,582		523
Total temporarily impaired investment securities	$	267,712	$	2,150	$	129,934	$	3,791	$	397,646	$	5,941

	At December 31, 2014
	Less than Twelve Months				Twelve Months or Longer				Total
	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
	(In Thousands)
Investment securities available-for-sale:
GSEs	$	11,086	$	29	$	—	$	—	$	11,086	$	29
GSE CMOs	39,095		179		190,345		4,642		229,440		4,821
GSE MBSs	50,099		84		39,555		795		89,654		879
SBA commercial loan asset-backed securities	8		—		186		2		194		2
Corporate debt obligations	4,069		1		—		—		4,069		1
Trust preferred securities	—		—		1,240		223		1,240		223
Total temporarily impaired investment securities available-for-sale	$	104,357	$	293	$	231,326	$	5,662	$	335,683	$	5,955

The Company performs regular analysis on the investment securities portfolio to determine whether a decline in fair value indicates that an investment security is OTTI. In making these OTTI determinations, management considers, among other factors, the length of time and extent to which the fair value has been less than amortized cost; projected future cash flows; credit subordination and the creditworthiness, capital adequacy and near-term prospects of the issuers.

Management also considers the Company’s capital adequacy, interest-rate risk, liquidity and business plans in assessing whether it is more likely than not that the Company will sell or be required to sell the investment securities before recovery. If the Company determines that a decline in fair value is OTTI and that it is more likely than not that the Company will not sell or be required to sell the investment security before recovery of its amortized cost, the credit portion of the impairment loss is recognized in the Company's unaudited consolidated statements of income and the noncredit portion is recognized in accumulated other comprehensive income. The credit portion of the OTTI impairment represents the difference between the amortized cost and the present value of the expected future cash flows of the investment security. If the Company determines that a decline in fair value is OTTI and it is more likely than not that it will sell or be required to sell the investment security before recovery of its amortized cost, the entire difference between the amortized cost and the fair value of the investment security will be recognized in the Company's unaudited consolidated statements of income.

Investment Securities Available-For-Sale Impairment Analysis

The following discussion summarizes, by investment security type, the basis for evaluating if the applicable investment securities within the Company’s available-for-sale portfolio were OTTI at June 30, 2015. Based on the analysis below, it is more likely than not that the Company will not sell or be required to sell the investment securities before recovery of its amortized cost. The Company's ability and intent to hold these investment securities until recovery is supported by the Company's strong capital and liquidity positions as well as its historically low portfolio turnover. As such, Management has determined that the investment securities are not OTTI at June 30, 2015. If market conditions for investment securities worsen or the creditworthiness of the underlying issuers deteriorates, it is possible that the Company may recognize additional OTTI in future periods.

U.S. Government-Sponsored Enterprises

The Company invests in securities issued by U.S. Government-sponsored enterprises (“GSEs”), including GSE debt securities, mortgage-backed securities (“MBSs”), and collateralized mortgage obligations (“CMOs”). GSE securities include obligations issued by the Federal National Mortgage Association (“FNMA”), the Federal Home Loan Mortgage Corporation (“FHLMC”), the Government National Mortgage Association (“GNMA”), the Federal Home Loan Banks ("FHLB") and the Federal Farm Credit Bank. At June 30, 2015, only GNMA MBSs and CMOs, and Small Business Administration (“SBA”) commercial loan asset-backed securities with an estimated fair value of $21.2 million were backed explicitly by the full faith and credit of the U.S. Government, compared to $26.2 million at December 31, 2014.

At June 30, 2015, the Company held GSE debentures with a total fair value of $18.6 million, which approximated amortized cost. At December 31, 2014, the Company held GSE debentures with a total fair value of $23.0 million, which also approximated amortized cost. At June 30, 2015, three of the seven securities in this portfolio were in unrealized loss positions. At December 31, 2014, four of the eight securities in this portfolio were in unrealized loss positions. All securities are performing and backed by the implicit (FHLB / FNMA / FHLMC) or explicit (GNMA / SBA) guarantee of the U.S. Government. During the six months endedJune 30, 2015, the Company purchased $2.0 million of GSE debentures. This compares to a total of $2.0 million purchased during the same period in 2014.

At June 30, 2015, the Company held GSE mortgage-related securities with a total fair value of $469.2 million and a net unrealized loss of $3.3 million. This compares to a total fair value of $485.2 million and a net unrealized loss of $3.1 million at December 31, 2014. At June 30, 2015, 90 of the 254 securities in this portfolio were in unrealized loss positions, compared to 79 of the 250 securities at December 31, 2014. All securities are performing and backed by the implicit (FHLB / FNMA / FHLMC) or explicit (GNMA) guarantee of the U.S. Government. During the six months endedJune 30, 2015, the Company purchased $29.5 million in GSE CMOs and GSE MBSs. This compares to a total of $55.1 million purchased during the same period in 2014.

SBA Commercial Loan Asset-Backed Securities

At June 30, 2015 and December 31, 2014, the Company held eight SBA securities with a total fair value of $0.2 million which approximated amortized cost. At June 30, 2015 and December 31, 2014, seven of the eight securities in this portfolio were in unrealized loss positions. All securities are performing and backed by the explicit (SBA) guarantee of the U.S. Government.

Corporate Obligations

From time to time, the Company will invest in high-quality corporate obligations to provide portfolio diversification and improve the overall yield on the portfolio. The Company owned thirteen corporate obligation securities with a total fair value of $40.3 million and a net unrealized gain of $0.4 million at June 30, 2015. This compares to thirteen corporate obligation securities with a total fair value of $40.2 million and a net unrealized gain of $0.4 million at December 31, 2014. At June 30, 2015 and December 31, 2014, one of the thirteen securities in this portfolio was in an unrealized loss position. Full collection of the obligations is expected because the financial condition of the issuer is sound and has not defaulted on scheduled payments, the obligations are rated investment grade and the Company has the ability and intent to hold the obligations for a period of time to recover the amortized cost. During the six months endedJune 30, 2015, the Company did not purchase any corporate obligations. This compares to a total of $12.0 million purchased during the same period in 2014.

Trust Preferred Securities

Trust preferred securities represent subordinated debt issued by financial institutions. At June 30, 2015, the Company owned two trust preferred securities with a total fair value of $1.3 million and total net unrealized loss of $0.1 million. This compares to two trust preferred securities with a total fair value of $1.2 million and a total net unrealized loss of $0.2 million at December 31, 2014. At June 30, 2015 and December 31, 2014, both of the securities in this portfolio were in unrealized loss positions. Full collection of the obligations is expected because the financial condition of the issuers is sound, none of the issuers has defaulted on scheduled payments, the obligations are rated investment grade and the Company has the ability and intent to hold the obligations for a period of time to recover the amortized cost.

Marketable Equity Securities

At June 30, 2015 and December 31, 2014, the Company owned marketable equity securities with a fair value of $1.0 million, which approximated amortized cost. At June 30, 2015 and December 31, 2014, none of the securities in this portfolio was in an unrealized loss position.

Investment Securities Held-to-Maturity Impairment Analysis

At June 30, 2015, the Company owned 43 held-to-maturity investment securities with a total fair value of $60.0 million and a net unrealized loss of $0.5 million. This compares to 0.5 million at December 31, 2014 which represented fair value. At June 30, 2015, 38 of the securities were in an unrealized loss position compared to none at December 31, 2014. Management does not intend to sell these securities prior to maturity. As such, Management has determined that the investment securities are not OTTI at June 30, 2015. During the six months endedJune 30, 2015, the Company purchased $60.3 million of held-to-maturity investment securities. This compares to a total of $0.5 million purchased during the same period in 2014.

Portfolio Maturities

The final stated maturities of the debt securities are as follows at the dates indicated:

	At June 30, 2015						At December 31, 2014
	Amortized Cost		Estimated Fair Value		Weighted Average Rate		Amortized Cost		Estimated Fair Value		Weighted Average Rate
	(Dollars in Thousands)
Investment securities available-for-sale:
Within 1 year	$	6,151	$	6,174	2.35	%	$	3,057	$	3,081	3.00	%
After 1 year through 5 years	49,500		50,318		2.50	%	55,631		56,586		2.48	%
After 5 years through 10 years	90,390		90,955		1.98	%	103,268		104,208		2.00	%
Over 10 years	386,424		382,056		1.96	%	390,685		385,913		1.91	%
	$	532,465	$	529,503	2.02	%	$	552,641	$	549,788	1.99	%
Investment securities held-to-maturity:
Within 1 year	$	500	$	500	1.30	%	$	—	$	—	—	%
After 1 year through 5 years	11,336		11,312		1.58	%	500		500		1.30	%
After 5 years through 10 years	27,682		27,406		2.15	%	—		—		—	%
Over 10 years	20,993		20,775		1.65	%	—		—		—	%
	$	60,511	$	59,993	1.86	%	$	500	$	500	1.30	%

Actual maturities of debt securities may differ from those presented above since certain obligations amortize and provide the issuer the right to call or prepay the obligation prior to the scheduled final stated maturity without penalty. MBSs and CMOs are included above based on their final stated maturities; the actual maturities, however, are expected to occur earlier due to anticipated prepayments and stated amortization of cash flows.

At June 30, 2015, issuers of debt securities with an estimated fair value of $35.4 million had the right to call or prepay the obligations. Of the $35.4 million, $9.5 million matures in 1 - 5 years and $25.9 million matures in 6 - 10 years. At December 31, 2014, issuers of debt securities with an estimated fair value of $16.1 million had the right to call or prepay the obligations. Of the $16.1 million, approximately $5.0 million matures in 1 - 5 years, $9.9 million matures in 6 - 10 years and $1.2 million matures after ten years.

Security Sales

Security transactions are recorded on the trade date. When securities are sold, the adjusted cost of the specific security sold is used to compute the gain on loss on the sale. There were no security sales during the three-month and six-month periods ended June 30, 2015.

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	(In Thousands)
Sales of debt securities	$	5,083		$	5,083
Gross gains from sales	302			302
Gross losses from sales	315			315
Loss on sales of securities, net	$	(13	)	$	(13	)

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2015

Accounting Policies

Basis of Financial Statement Presentation

Basis of Financial Statement Presentation

The unaudited consolidated financial statements of the Company presented herein have been prepared pursuant to the rules of the Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by U.S. generally accepted accounting principles (“GAAP”). In the opinion of management, all adjustments (consisting of normal recurring adjustments) and disclosures considered necessary for the fair presentation of the accompanying consolidated financial statements have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Annual Report on Form 10-K for the fiscal year ended December 31, 2014. 

The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances are eliminated in consolidation.

In preparing these consolidated financial statements, management is required to make significant estimates and assumptions that affect the reported amounts of assets, liabilities, income, expenses and disclosure of contingent assets and liabilities. Actual results could differ from those estimates based upon changing conditions, including economic conditions and future events. Material estimates that are particularly susceptible to significant change in the near-term include the determination of the allowance for loan and lease losses, the determination of fair market values of assets and liabilities, including acquired loans and leases, the review of goodwill and intangibles for impairment and the review of deferred tax assets for valuation allowances.

The judgments used by management in applying these critical accounting policies may be affected by a further and prolonged deterioration in the economic environment, which may result in changes to future financial results. For example, subsequent evaluations of the loan and lease portfolio, in light of the factors then prevailing, may result in significant changes in the allowance for loan and lease losses in future periods, and the inability to collect outstanding principal may result in increased loan and lease losses.

Reclassification

Reclassification

Certain previously reported amounts have been reclassified to conform to the current year’s presentation. Except for the adoption of ASU 2014-01, there were no changes to stockholders' equity and net income reported. Refer to Note 8, "Investments in Qualified Affordable Projects" for the impact the adoption had on the Company's financial statements.

Recent Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This ASU requires that all debt issuance costs be presented in the balance sheet as direct deductions from the carrying amount of the related debt liability. Amortization of the costs is reported as interest expense. This ASU is applied retrospectively for the first interim or annual period presented beginning after December 15, 2015; early adoption is permitted. As of June 30, 2015, the Company has accounted for its debt issuance cost as a reduction of the debt liability.

The Company adopted ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects, which required retrospective application. Refer to Note 8, "Investments in Qualified Affordable Projects" for the impact the adoption had on the Company's financial statements.

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Stock Based Compensation

6 Months Ended

Jun. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Based Compensation

Stock Based Compensation

As of June 30, 2015, the Company had three active recognition and retention plans: the 2003 Recognition and Retention Plan (the "2003 RRP") with 1,250,000 authorized shares, the 2011 Restricted Stock Award Plan (the "2011 RSA") with 500,000 authorized shares and the 2014 Equity Incentive Plan (the "2014 Plan") with 1,750,000 authorized shares. The 2003 RRP, the 2011 RSA and the 2014 Plan are collectively referred to as the "Plans". The purpose of the Plans is to promote the long-term financial success of the Company and its subsidiaries by providing a means to attract, retain and reward individuals who contribute to such success and to further align their interests with those of the Company's stockholders.

Of the awarded shares, generally 50% vest ratably over three years with one-third of such shares vesting at each of the first, second and third anniversary dates of the awards. These are referred to as "time-based shares". The remaining 50% of each award has a cliff vesting schedule and will vest three years after the award date based on the level of the Company's achievement of identified performance targets in comparison to the level of achievement of such identified performance targets by a defined peer group comprised of 20 financial institutions. These are referred to as "performance-based shares". The specific performance measure targets relate to return on assets, return on tangible equity, asset quality and total shareholder return. If a participant leaves the Company prior to the third anniversary date of an award, any unvested shares will be forfeited. Dividends declared with respect to shares awarded are held by the Company and paid to the participant only when the shares vest.

Under all the Plans, shares of the Company's common stock were reserved for issuance as restricted stock awards to officers, employees, consultants and non-employee directors of the Company. Shares issued upon vesting may be either authorized but unissued shares or reacquired shares held by the Company as treasury shares. Any shares not issued because vesting requirements are not met will be retired back to treasury and be made available again for issuance under the Plans.

Total expense for the Plans was $0.1 million for the three months ended June 30, 2015 compared to $0.2 million for the three months ended June 30, 2014. Total expense for the Plans was $0.5 million for the six months endedJune 30, 2015 compared to $0.6 million for the six months endedJune 30, 2014.

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Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The following table sets forth the carrying value of goodwill and other intangible assets at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Goodwill	$	137,890	$	137,890
Other intangible assets:
Core deposits	10,993		12,455
Trade name	1,089		1,089
Total other intangible assets	12,082		13,544
Total goodwill and other intangible assets	$	149,972	$	151,434

The Company concluded that the BankRI name would continue to be utilized in its marketing strategies; therefore, the trade name with carrying value of $1.1 million has an indefinite life.

The estimated aggregate future amortization expense (in thousands) for intangible assets with a finite life remaining at June 30, 2015 is as follows:

Remainder of 2015	$	1,449
Year ending:
2016	2,500
2017	2,089
2018	1,669
2019	1,295
Thereafter	1,991
Total	$	10,993

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Stock Based Compensation (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) plan shares	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) bank plan shares	Jun. 30, 2014 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock based compensation plans | plan	3		3
Number of financial institutions defining performance targets | bank			20
Stock based compensation expense | $	$ 0.1	$ 0.2	$ 0.5	$ 0.6
Time-based shares | Vest equally over three years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of shares in tranche			50.00%
Award vesting period			3 years
Vesting percentage			33.33%
Performance-based shares | Vesting after achievement of performance targets
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of shares in tranche			50.00%
Award vesting period			3 years
Recognition and Retention Plan 2003
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	1,250,000		1,250,000
Restricted Stock Plan 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	500,000		500,000
Equity Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	1,750,000		1,750,000

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Allowance for Loan and Lease Losses

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Allowance for Loan and Lease Losses

Allowance for Loan and Lease Losses

The following tables present the changes in the allowance for loan and lease losses and the recorded investment in loans and leases by portfolio segment for the periods indicated:

	Three Months Ended June 30, 2015
	Commercial Real Estate			Commercial			Indirect Automobile			Consumer			Unallocated		Total
	(In Thousands)
Balance at March 31, 2015	$	29,460		$	19,084		$	458		$	3,619		$	2,485	$	55,106
Charge-offs	(162		)	(245		)	(397		)	(225		)	—		(1,029		)
Recoveries	—			94			410			24			—		528
Credit (provision) for loan and lease losses	(82		)	1,296			(90		)	594			75		1,793
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398

	Three Months Ended June 30, 2014
	Commercial Real Estate		Commercial			Indirect Automobile			Consumer			Unallocated			Total
	(In Thousands)
Balance at March 31, 2014	$	24,858	$	15,544		$	3,664		$	3,110		$	3,048		$	50,224
Charge-offs	—		(796		)	(228		)	(172		)	—			(1,196		)
Recoveries	—		218			173			85			—			476
Provision (credit) for loan and lease losses	1,857		900			77			(6		)	(646		)	2,182
Balance at June 30, 2014	$	26,715	$	15,866		$	3,686		$	3,017		$	2,402		$	51,686

	Six Months Ended June 30, 2015
	Commercial Real Estate			Commercial			Indirect Automobile			Consumer			Unallocated		Total
	(In Thousands)
Balance at December 31, 2014	$	29,594		$	15,957		$	2,331		$	3,359		$	2,418	$	53,659
Charge-offs	(550		)	(695		)	(1,217		)	(232		)	—		(2,694		)
Recoveries	—			306			991			42			—		1,339
Provision (credit) for loan and lease losses	172			4,661			(1,724		)	843			142		4,094
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398

	Six Months Ended June 30, 2014
	Commercial Real Estate		Commercial			Indirect Automobile			Consumer			Unallocated			Total
	(In Thousands)
Balance at December 31, 2013	$	23,022	$	15,220		$	3,924		$	3,375		$	2,932		$	48,473
Charge-offs	—		(1,347		)	(517		)	(382		)	—			(2,246		)
Recoveries	—		469			277			114			—			860
Provision (credit) for loan and lease losses	3,693		1,524			2			(90		)	(530		)	4,599
Balance at June 30, 2014	$	26,715	$	15,866		$	3,686		$	3,017		$	2,402		$	51,686

The liability for unfunded credit commitments, which is included in other liabilities, was $1.4 million, $1.3 million and $1.2 million at June 30, 2015, December 31, 2014 and June 30, 2014, respectively. The liability for unfunded credit commitments reflects changes in the estimate of loss exposure associated with certain unfunded credit commitments. No credit commitments were charged off against the liability account in the six-month periods ended June 30, 2015 and 2014.

Provision for Credit Losses

The provision for credit losses are set forth below for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Provision (credit) for loan and lease losses:
Commercial real estate	$	(82	)	$	1,857		$	172		$	3,693
Commercial	1,296			900			4,661			1,524
Indirect automobile	(90		)	77			(1,724		)	2
Consumer	594			(6		)	843			(90		)
Unallocated	75			(646		)	142			(530		)
Total provision for loan and lease losses	1,793			2,182			4,094			4,599
Unfunded credit commitments	120			94			82			120
Total provision for credit losses	$	1,913		$	2,276		$	4,176		$	4,719

Procedure for Placing Loans and Leases on Nonaccrual

Accrual of interest on loans generally is discontinued when contractual payment of principal or interest becomes past due 90 days or, if in management’s judgment, reasonable doubt exists as to the full timely collection of interest. Exceptions may be made if the loan has matured and is in the process of renewal or is well-secured and in the process of collection. When a loan is placed on nonaccrual status, interest accruals cease and uncollected accrued interest is reversed and charged against current interest income. Interest payments on nonaccrual loans are generally applied to principal. If collection of the principal is reasonably assured, interest payments are recognized as income on the cash basis. Loans are generally returned to accrual status when principal and interest payments are current, full collectability of principal and interest is reasonably assured and a consistent record of at least six consecutive months of performance has been achieved.

Allowance for Loan and Lease Losses Methodology

Management has established a methodology to determine the adequacy of the allowance for loan and lease losses that assesses the risks and losses inherent in the loan and lease portfolio. Additions to the allowance for loan and lease losses are made by charges to the provision for credit losses. Losses on loans and leases are charged off against the allowance when all or a portion of a loan or lease is considered uncollectible. Subsequent recoveries on loans previously charged off, if any, are credited to the allowance when realized.

The allowance for loan and lease losses consists of general, specific and unallocated reserves and reflects management's estimate of probable loan and lease losses inherent in the loan portfolio at the balance sheet date. Management uses a consistent and systematic process and methodology to evaluate the adequacy of the allowance for loan and lease losses on a quarterly basis. For purposes of determining the allowance for loan and lease losses, the Company has segmented certain loans and leases in the portfolio by product type into the following pools: (1) commercial real estate loans, (2) commercial loans and leases, (3) indirect automobile loans and (4) consumer loans. Portfolio segments are further disaggregated into classes based on the associated risks within the segments. Commercial real estate loans are divided into three classes: commercial real estate mortgage loans, multi-family mortgage loans and construction loans. Commercial loans and leases are divided into three classes: commercial loans, equipment financing, and loans to condominium associations. The indirect automobile loan segment is not divided into classes. Consumer loans are divided into three classes: residential mortgage loans, home equity loans and other consumer loans. A formula-based credit evaluation approach is applied to each group, coupled with an analysis of certain loans for impairment.

General Allowance

The general allowance related to loans collectively evaluated for impairment is determined using a formula-based approach utilizing the risk ratings of individual credits and loss factors derived from historic portfolio loss rates, which includes estimates of incurred losses over an estimated loss emergence period (“LEP”). The LEP was generated utilizing a charge-off look-back analysis which studied the time from the first indication of elevated risk of repayment (or other early event indicating a problem) to eventual charge-off to support the LEP considered in the allowance calculation. This reserving methodology established the approximate number of months of a LEP that incurred losses should be carried for each portfolio. Other relevant qualitative factors include, but are not limited to, historic levels and trends in loan charge-offs and recoveries; past-due loans; risk-rated loans; classified loans and impaired loans; the pace of loan growth; underwriting policies and adherence to such policies; changes in credit concentration; the experience of lending personnel and management; trends in the economy and employment; business conditions; industry conditions; and political, legislative and regulatory changes. The general allowance related to the acquired loans collectively evaluated for impairment is determined based upon the degree, if any, of deterioration in the pooled loans subsequent to acquisition. The qualitative factors used in the determination are the same as those used for originated loans.

The general allowance for loan and lease losses was $51.0 million at June 30, 2015, compared to $50.1 million at December 31, 2014. The general portion of the allowance for loan and lease losses increased by $0.9 million during the six months endedJune 30, 2015, largely due to the growth in commercial real estate and commercial loan and lease portfolios, offset by the sale of the indirect automobile portfolio, which resulted in a release of $1.9 million in the general allowance for loan and lease losses in the first quarter of 2015.

Specific Allowance

Specific valuation allowances are established for impaired originated loans with book values greater than the discounted present value of expected future cash flows or, in the case of collateral-dependent impaired loans, for any excess of a loan's book balance and the fair value of its underlying collateral. Specific valuation allowances are established for acquired loans with deterioration in the discounted present value of expected future cash flows since acquisitions or, in the case of collateral dependent impaired loans, for any increase in the excess of a loan's book balance greater than the fair value of its underlying collateral. A specific valuation allowance for losses on troubled debt restructured loans is determined by comparing the net carrying amount of the troubled debt restructured loan with the restructured loan's cash flows discounted at the original

effective rate. Impaired loans are reviewed quarterly with adjustments made to the calculated reserve as deemed necessary.

The specific allowance for loan and lease losses was $2.8 million at June 30, 2015, compared to $1.2 million at December 31, 2014. The specific allowance increased by $1.6 million during the six months endedJune 30, 2015, primarily due to one commercial relationship which was downgraded during the six months endedJune 30, 2015.

Unallocated Allowance

Determination of the unallocated portion of the allowance is a subjective process. Management believes the unallocated allowance is an important component of the total allowance because it addresses the probable inherent risk of loss that exists in that part of the Company's loan portfolio with repayment terms that extend over many years. It also helps to minimize the risk related to the margin of imprecision inherent in the estimation of the allocated components of the allowance.

The unallocated allowance for loan and lease losses was $2.6 million at June 30, 2015, compared to $2.4 million at December 31, 2014. The unallocated portion of the allowance for loan and lease losses increased by $0.2 million during the six months endedJune 30, 2015, largely as the result of the increase in overall allowance for loan and lease losses.

Credit Quality Assessment

At the time of loan origination, a rating is assigned based on the financial strength of the borrower and the value of assets pledged as collateral. The Company continually monitors the asset quality of the loan portfolio using all available information. The officer responsible for handling each loan is required to initiate changes to risk ratings when changes in facts and circumstances occur that warrant an upgrade or downgrade in a loan rating. Based on this information, loans demonstrating certain payment issues or other weaknesses may be categorized as delinquent, impaired, nonperforming and/or put on nonaccrual status. Additionally, in the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower’s ability to repay the loan based on their current financial condition. If a restructured loan meets certain criteria, it may be categorized as a troubled debt restructuring.

The Company reviews numerous credit quality indicators when assessing the risk in its loan portfolio. For the commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment financing, condominium association and other consumer loan and lease classes, the Company utilizes an eight-grade loan rating system, which assigns a risk rating to each borrower based on a number of quantitative and qualitative factors associated with a loan transaction. Factors considered include industry and market conditions; position within the industry; earnings trends; operating cash flow; asset/liability values; debt capacity; guarantor strength; management and controls; financial reporting; collateral; and other considerations. In addition, the Company’s independent loan review group evaluates the credit quality and related risk ratings of the commercial real estate and commercial loan portfolios. The results of these reviews are reported to the Board of Directors. For consumer loans, the Company primarily relies on payment status for monitoring credit risk.

The ratings categories used for assessing credit risk in the commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment financing, condominium association and other consumer loan and lease classes are defined as follows:

1-4 Rating — Pass

Loan rating grades “1” through “4” are classified as “Pass,” which indicates borrowers are performing in accordance with the terms of the loan and are less likely to result in loss due to the capacity of the borrower to pay and the adequacy of the value of assets pledged as collateral.

5 Rating — Other Asset Especially Mentioned (“OAEM”)

Borrowers exhibit potential credit weaknesses or downward trends deserving management’s attention. If not checked or corrected, these trends can weaken the Company’s asset position. While potentially weak, currently these borrowers are marginally acceptable; no loss of principal or interest is envisioned.

6 Rating — Substandard

Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt. Substandard loans may be inadequately protected by the current net worth and paying capacity of the obligors or by the collateral pledged, if any. Normal repayment from the borrower is in jeopardy. Although no loss of principal is envisioned, there is a distinct possibility that a partial loss of interest and/or principal will occur if the deficiencies are not corrected. Collateral coverage may be inadequate to cover the principal obligation.

7 Rating — Doubtful

Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt with the added provision that the weaknesses make collection of the debt in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Serious problems exist to the point where partial loss of principal is likely.

8 Rating — Definite Loss

Borrowers deemed incapable of repayment. Loans to such borrowers are considered uncollectable and of such little value that continuation as active assets of the Company is not warranted.

Assets rated as “OAEM,” “substandard” or “doubtful” based on criteria established under banking regulations are collectively referred to as “criticized” assets.

Credit Quality Information

The following tables present the recorded investment in loans in each class at June 30, 2015 by credit quality indicator.

	At June 30, 2015
	Commercial Real Estate Mortgage		Multi- Family Mortgage		Construction		Commercial		Equipment Financing		Condominium Association		Other Consumer
	(In Thousands)
Originated:
Loan rating:
Pass	$	1,514,670	$	574,892	$	126,755	$	531,060	$	633,364	$	55,185	$	12,021
OAEM	12,921		1,191		220		7,622		1,198		—		—
Substandard	3,174		309		—		9,171		1,369		—		37
Doubtful	—		—		—		874		1,480		—		—
Total originated	1,530,765		576,392		126,975		548,727		637,411		55,185		12,058
Acquired:
Loan rating:
Pass	213,309		49,233		531		24,813		11,036		—		139
OAEM	5,081		710		—		1,021		—		—		—
Substandard	8,715		1,236		—		3,898		—		—		—
Doubtful	411		—		—		89		—		—		—
Total acquired	227,516		51,179		531		29,821		11,036		—		139
Total loans	$	1,758,281	$	627,571	$	127,506	$	578,548	$	648,447	$	55,185	$	12,197

At June 30, 2015, there were no loans categorized as definite loss.

	At June 30, 2015
	Indirect Automobile
	($ In Thousands)
Originated:
Credit score:
Over 700	$	7,665	39.6	%
661-700	2,815		14.5	%
660 and below	8,762		45.2	%
Data not available	135		0.7	%
Total loans	$	19,377	100.0	%

	At June 30, 2015
	Residential Mortgage				Home Equity
	($ In Thousands)				($ In Thousands)
Originated:
Loan-to-value ratio:
Less than 50%	$	112,562	18.7	%	$	114,866	38.4	%
50% - 69%	204,585		33.9	%	43,341		14.5	%
70% - 79%	169,265		28.1	%	31,228		10.4	%
80% and over	18,758		3.1	%	16,486		5.5	%
Data not available	1,658		0.3	%	914		0.3	%
Total originated	506,828		84.1	%	206,835		69.1	%
Acquired:
Loan-to-value ratio:
Less than 50%	20,598		3.4	%	57,062		19.0	%
50% - 69%	34,968		5.8	%	22,208		7.4	%
70% - 79%	21,280		3.5	%	9,256		3.1	%
80% and over	15,055		2.5	%	3,248		1.1	%
Data not available	4,344		0.7	%	787		0.3	%
Total acquired	96,245		15.9	%	92,561		30.9	%
Total loans	$	603,073	100.0	%	$	299,396	100.0	%

The following tables present the recorded investment in loans in each class at December 31, 2014 by credit quality indicator.

	At December 31, 2014
	Commercial Real Estate Mortgage		Multi- Family Mortgage		Construction		Commercial		Equipment Financing		Condominium Association		Other Consumer
	(In Thousands)
Originated:
Loan rating:
Pass	$	1,402,121	$	574,972	$	146,074	$	447,778	$	583,340	$	51,593	$	11,540
OAEM	22,491		1,242		—		12,193		932		—		—
Substandard	1,009		—		—		1,671		2,338		—		40
Doubtful	—		—		—		1,088		886		—		—
Total originated	1,425,621		576,214		146,074		462,730		587,496		51,593		11,580
Acquired:
Loan rating:
Pass	237,439		60,837		1,709		43,925		13,795		—		167
OAEM	8,351		713		230		1,852		—		—		—
Substandard	8,250		1,942		—		5,424		133		—		—
Doubtful	421		—		—		146		—		—		—
Total acquired	254,461		63,492		1,939		51,347		13,928		—		167
Total loans	$	1,680,082	$	639,706	$	148,013	$	514,077	$	601,424	$	51,593	$	11,747

At December 31, 2014, there were no loans categorized as definite loss.

	At December 31, 2014
	Indirect Automobile
	($ In Thousands)
Originated:
Credit score:
Over 700	$	262,160	82.7	%
661-700	43,422		13.7	%
660 and below	9,927		3.1	%
Data not available	1,478		0.5	%
Total loans	$	316,987	100.0	%

	At December 31, 2014
	Residential Mortgage				Home Equity
	($ In Thousands)				($ In Thousands)
Originated:
Loan-to-value ratio:
Less than 50%	$	105,342	18.4	%	$	113,541	39.6	%
50% - 69%	179,319		31.4	%	35,660		12.4	%
70% - 79%	166,467		29.1	%	27,123		9.4	%
80% and over	19,335		3.4	%	4,195		1.5	%
Data not available	1,615		0.3	%	1,061		0.4	%
Total originated	472,078		82.6	%	181,580		63.2	%
Acquired:
Loan-to-value ratio:
Less than 50%	19,574		3.4	%	70,293		24.5	%
50% - 69%	35,131		6.2	%	22,581		7.9	%
70% - 79%	22,972		4.0	%	10,569		3.7	%
80% and over	16,268		2.8	%	1,178		0.4	%
Data not available	5,897		1.0	%	857		0.3	%
Total acquired	99,842		17.4	%	105,478		36.8	%
Total loans	$	571,920	100.0	%	$	287,058	100.0	%

Age Analysis of Past Due Loans and Leases

The following tables present an age analysis of the recorded investment in total loans and leases at June 30, 2015 and December 31, 2014.

	At June 30, 2015
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Originated:
Commercial real estate loans:
Commercial real estate mortgage	$	454	$	2,147	$	1,235	$	3,836	$	1,526,929	$	1,530,765	$	208	$	3,174
Multi-family mortgage	—		—		309		309		576,083		576,392		—		309
Construction	—		—		—		—		126,975		126,975		—		—
Total commercial real estate loans	454		2,147		1,544		4,145		2,229,987		2,234,132		208		3,483
Commercial loans and leases:
Commercial	4,589		3,545		1,040		9,174		539,553		548,727		—		8,996
Equipment financing	2,005		306		2,020		4,331		633,080		637,411		1		2,639
Condominium association	—		—		—		—		55,185		55,185		—		—
Total commercial loans and leases	6,594		3,851		3,060		13,505		1,227,818		1,241,323		1		11,635
Indirect automobile	1,492		477		76		2,045		17,332		19,377		—		417
Consumer loans:
Residential mortgage	—		—		229		229		506,599		506,828		—		2,251
Home equity	51		—		106		157		206,678		206,835		—		159
Other consumer	273		3		34		310		11,748		12,058		1		42
Total consumer loans	324		3		369		696		725,025		725,721		1		2,452
Total originated loans and leases	$	8,864	$	6,478	$	5,049	$	20,391	$	4,200,162	$	4,220,553	$	210	$	17,987

	At June 30, 2015
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Acquired:
Commercial real estate loans:
Commercial real estate mortgage	$	1,183	$	527	$	4,409	$	6,119	$	221,397	$	227,516	$	4,409	$	—
Multi-family mortgage	—		—		2,391		2,391		48,788		51,179		2,391		—
Construction	—		—		—		—		531		531		—		—
Total commercial real estate loans	1,183		527		6,800		8,510		270,716		279,226		6,800		—
Commercial loans and leases:
Commercial	941		—		3,611		4,552		25,269		29,821		343		3,320
Equipment financing	26		—		—		26		11,010		11,036		—		—
Total commercial loans and leases	967		—		3,611		4,578		36,279		40,857		343		3,320
Consumer loans:
Residential mortgage	912		—		2,862		3,774		92,471		96,245		2,692		170
Home equity	562		164		1,126		1,852		90,709		92,561		175		1,985
Other consumer	—		—		—		—		139		139		—		—
Total consumer loans	1,474		164		3,988		5,626		183,319		188,945		2,867		2,155
Total acquired loans and leases	$	3,624	$	691	$	14,399	$	18,714	$	490,314	$	509,028	$	10,010	$	5,475
Total loans and leases	$	12,488	$	7,169	$	19,448	$	39,105	$	4,690,476	$	4,729,581	$	10,220	$	23,462

	At December 31, 2014
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Originated:
Commercial real estate loans:
Commercial real estate mortgage	$	1,631	$	416	$	160	$	2,207	$	1,423,414	$	1,425,621	$	—	$	1,009
Multi-family mortgage	385		—		—		385		575,829		576,214		—		—
Construction	—		—		—		—		146,074		146,074		—		—
Total commercial real estate loans	2,016		416		160		2,592		2,145,317		2,147,909		—		1,009
Commercial loans and leases:
Commercial	758		876		1,499		3,133		459,597		462,730		2		2,722
Equipment financing	1,534		138		2,392		4,064		583,432		587,496		—		3,214
Condominium association	501		—		—		501		51,092		51,593		—		—
Total commercial loans and leases	2,793		1,014		3,891		7,698		1,094,121		1,101,819		2		5,936
Indirect automobile	4,635		923		166		5,724		311,263		316,987		—		645
Consumer loans:
Residential mortgage	—		—		501		501		471,577		472,078		—		1,340
Home equity	75		52		129		256		181,324		181,580		—		161
Other consumer	17		5		30		52		11,528		11,580		—		41
Total consumer loans	92		57		660		809		664,429		665,238		—		1,542
Total originated loans and leases	$	9,536	$	2,410	$	4,877	$	16,823	$	4,215,130	$	4,231,953	$	2	$	9,132

	At December 31, 2014
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Acquired:
Commercial real estate loans:
Commercial real estate mortgage	$	989	$	3,705	$	2,387	$	7,081	$	247,380	$	254,461	$	2,387	$	—
Multi-family mortgage	195		729		363		1,287		62,205		63,492		363		—
Construction	—		—		—		—		1,939		1,939		—		—
Total commercial real estate loans	1,184		4,434		2,750		8,368		311,524		319,892		2,750		—
Commercial loans and leases:
Commercial	712		488		3,033		4,233		47,114		51,347		624		2,474
Equipment financing	2		52		66		120		13,808		13,928		73		9
Total commercial loans and leases	714		540		3,099		4,353		60,922		65,275		697		2,483
Consumer loans:
Residential mortgage	—		—		2,715		2,715		97,127		99,842		2,372		342
Home equity	1,005		733		923		2,661		102,817		105,478		187		1,757
Other consumer	—		—		—		—		167		167		—		—
Total consumer loans	1,005		733		3,638		5,376		200,111		205,487		2,559		2,099
Total acquired loans and leases	$	2,903	$	5,707	$	9,487	$	18,097	$	572,557	$	590,654	$	6,006	$	4,582
Total loan and leases	$	12,439	$	8,117	$	14,364	$	34,920	$	4,787,687	$	4,822,607	$	6,008	$	13,714

Commercial Real Estate Loans — At June 30, 2015, loans outstanding in the three classes within this segment expressed as a percentage of total loans and leases outstanding were as follows: commercial real estate mortgage loans — 37.2%; multi-family mortgage loans — 13.3%; and construction loans — 2.7%.

Loans in this portfolio that are on nonaccrual status and/or risk-rated “substandard” or worse are evaluated on an individual loan basis for impairment. For non-impaired commercial real estate loans, loss factors are applied to outstanding loans by risk rating for each of the three classes in the portfolio. The factors applied are based primarily on historic loan loss experience and an assessment of internal and external factors and other relevant information.

Commercial Loans and Leases — At June 30, 2015, loans and leases outstanding in the three classes within this segment expressed as a percent of total loans and leases outstanding were as follows: commercial loans and leases — 12.2%; equipment financing loans — 13.7%; and loans to condominium associations — 1.2%.

Loans and leases in this portfolio that are on nonaccrual status and/or risk-rated “substandard” or worse are evaluated on an individual basis for impairment. For non-impaired commercial loans and leases, loss factors are applied to outstanding loans by risk rating for each of the three classes in the portfolio.

Indirect Automobile Loans — At June 30, 2015, indirect automobile loans represented 0.4% of the Company’s total loan and lease portfolio. Determination of the allowance for loan and lease losses for this portfolio is based primarily on payment status and historical loss rates.

Consumer Loans — At June 30, 2015, loans outstanding within the three classes within this segment expressed as a percent of total loans and leases outstanding were as follows: residential mortgage loans — 12.8%; home equity loans — 6.3%; and other consumer loans — 0.3%.

Significant risk characteristics related to the residential mortgage and home equity loan portfolios are the geographic concentration of the properties financed within selected communities in the greater Boston and Providence metropolitan areas. The payment status and loan-to-value ratio are the primary credit quality indicators used for residential mortgage loans and home equity loans. Generally, loans are not made when the loan-to-value ratio exceeds 80% unless private mortgage insurance is obtained and/or there is a financially strong guarantor. Consumer loans that become 90 days or more past due, or are placed on nonaccrual regardless of past due status, are reviewed on an individual basis for impairment by assessing the net realizable value of underlying collateral and the economic condition of the borrower.

Impaired Loans and Leases

A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan agreement. The Company has defined the population of impaired loans to include nonaccrual loans and troubled debt restructured loans.

When the ultimate collectability of the total principal of an impaired loan or lease is in doubt and the loan is on nonaccrual status, all payments are applied to principal, under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan or lease is not in doubt and the loan or lease is on nonaccrual status, contractual interest is credited to interest income when received, under the cash basis method.

The following tables include the recorded investment and unpaid principal balances of impaired loans and leases with the related allowance amount, if applicable, for the originated and acquired loan and lease portfolios at the dates indicated. Also presented are the average recorded investments in the impaired loans and leases and the related amount of interest recognized during the period that the impaired loans were impaired.

	At June 30, 2015						At December 31, 2014
	Recorded Investment (1)		Unpaid Principal Balance		Related Allowance		Recorded Investment (2)		Unpaid Principal Balance		Related Allowance
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,198	$	5,193	$	—	$	2,751	$	2,748	$	—
Commercial	14,494		14,468		—		13,440		13,421		—
Consumer	3,951		3,946		—		3,055		3,048		—
Total originated with no related allowance recorded	23,643		23,607		—		19,246		19,217		—
With an allowance recorded:
Commercial real estate	4,087		4,087		88		4,119		4,119		108
Commercial	6,462		6,454		2,405		2,019		2,011		768
Consumer	163		162		—		176		176		10
Total originated with an allowance recorded	10,712		10,703		2,493		6,314		6,306		886
Total originated impaired loans and leases	34,355		34,310		2,493		25,560		25,523		886
Acquired:
With no related allowance recorded:
Commercial real estate	8,263		8,264		—		9,413		9,428		—
Commercial	4,824		4,824		—		6,049		6,047		—
Consumer	8,263		8,278		—		6,688		6,688		—
Total acquired with no related allowance recorded	21,350		21,366		—		22,150		22,163		—
With an allowance recorded:
Commercial real estate	—		—		—		244		244		22
Commercial	598		598		238		478		478		214
Consumer	366		366		47		225		225		41
Total acquired with an allowance recorded	964		964		285		947		947		277
Total acquired impaired loans and leases	22,314		22,330		285		23,097		23,110		277
Total impaired loans and leases	$	56,669	$	56,640	$	2,778	$	48,657	$	48,633	$	1,163

⁽¹⁾Includes originated and acquired nonaccrual loans of $16.3 million and $5.5 million, respectively, at June 30, 2015.

⁽²⁾Includes originated and acquired nonaccrual loans of $7.1 million and $4.6 million, respectively, at December 31, 2014.

	Three Months Ended
	June 30, 2015				June 30, 2014
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,204	$	21	$	947	$	12
Commercial	14,942		151		5,711		62
Consumer	3,966		15		128		—
Total originated with no related allowance recorded	24,112		187		6,786		74
With an allowance recorded:
Commercial real estate	4,092		49		3,010		22
Commercial	6,497		3		3,800		24
Consumer	165		—		3,582		15
Total originated with an allowance recorded	10,754		52		10,392		61
Total originated impaired loans and leases	34,866		239		17,178		135
Acquired:
With no related allowance recorded:
Commercial real estate	8,596		38		20,402		182
Commercial	4,931		17		6,775		23
Consumer	8,295		14		4,807		5
Total acquired with no related allowance recorded	21,822		69		31,984		210
With an allowance recorded:
Commercial real estate	—		—		1,522		3
Commercial	598		—		1,948		14
Consumer	370		3		770		1
Total acquired with an allowance recorded	968		3		4,240		18
Total acquired impaired loans and leases	22,790		72		36,224		228
Total impaired loans and leases	$	57,656	$	311	$	53,402	$	363

	Six Months Ended
	June 30, 2015				June 30, 2014
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,066	$	44	$	2,422	$	48
Commercial	15,086		303		4,796		70
Consumer	4,023		30		1,980		13
Total originated with no related allowance recorded	24,175		377		9,198		131
With an allowance recorded:
Commercial real estate	4,100		99		1,587		22
Commercial	6,180		6		3,728		48
Consumer	168		—		1,940		15
Total originated with an allowance recorded	10,448		105		7,255		85
Total originated impaired loans and leases	34,623		482		16,453		216
Acquired:
With no related allowance recorded:
Commercial real estate	9,462		75		13,990		228
Commercial	4,717		32		7,498		59
Consumer	7,843		29		6,539		10
Total acquired with no related allowance recorded	22,022		136		28,027		297
With an allowance recorded:
Commercial real estate	122		—		2,971		40
Commercial	735		—		1,247		15
Consumer	365		5		385		1
Total acquired with an allowance recorded	1,222		5		4,603		56
Total acquired impaired loans and leases	23,244		141		32,630		353
Total impaired loans and leases	$	57,867	$	623	$	49,083	$	569

The following tables present information regarding impaired and non-impaired loans and leases at the dates indicated:

	At June 30, 2015
	Commercial Real Estate		Commercial		Indirect Automobile		Consumer		Unallocated		Total
	(In Thousands)
Allowance for Loan and Lease Losses:
Originated:
Individually evaluated for impairment	$	88	$	2,405	$	—	$	—	$	—	$	2,493
Collectively evaluated for impairment	27,471		17,291		381		3,547		2,560		51,250
Total originated loans and leases	27,559		19,696		381		3,547		2,560		53,743
Acquired:
Individually evaluated for impairment	—		238		—		46		—		284
Collectively evaluated for impairment	620		199		—		61		—		880
Acquired with deteriorated credit quality	1,037		96		—		358		—		1,491
Total acquired loans and leases	1,657		533		—		465		—		2,655
Total allowance for loan and lease losses	$	29,216	$	20,229	$	381	$	4,012	$	2,560	$	56,398
Loans and Leases:
Originated:
Individually evaluated for impairment	$	9,285	$	20,956	$	—	$	4,114	$	—	$	34,355
Collectively evaluated for impairment	2,224,847		1,220,367		19,377		721,607		—		4,186,198
Total originated loans and leases	2,234,132		1,241,323		19,377		725,721		—		4,220,553
Acquired:
Individually evaluated for impairment	605		4,667		—		3,370		—		8,642
Collectively evaluated for impairment	79,356		22,915		—		118,337		—		220,608
Acquired with deteriorated credit quality	199,265		13,275		—		67,238		—		279,778
Total acquired loans and leases	279,226		40,857		—		188,945		—		509,028
Total loans and leases	$	2,513,358	$	1,282,180	$	19,377	$	914,666	$	—	$	4,729,581

	At December 31, 2014
	Commercial Real Estate		Commercial		Indirect Automobile		Consumer		Unallocated		Total
	(In Thousands)
Allowance for Loan and Lease Losses:
Originated:
Individually evaluated for impairment	$	108	$	768	$	—	$	10	$	—	$	886
Collectively evaluated for impairment	27,457		14,631		2,331		3,088		2,418		49,925
Total originated loans and leases	27,565		15,399		2,331		3,098		2,418		50,811
Acquired:
Individually evaluated for impairment	—		144		—		41		—		185
Collectively evaluated for impairment	648		222		—		2		—		872
Acquired with deteriorated credit quality	1,381		192		—		218		—		1,791
Total acquired loans and leases	2,029		558		—		261		—		2,848
Total allowance for loan and lease losses	$	29,594	$	15,957	$	2,331	$	3,359	$	2,418	$	53,659
Loans and Leases:
Originated:
Individually evaluated for impairment	$	6,870	$	15,459	$	—	$	3,231	$	—	$	25,560
Collectively evaluated for impairment	2,141,039		1,086,360		316,987		662,007		—		4,206,393
Total originated loans and leases	2,147,909		1,101,819		316,987		665,238		—		4,231,953
Acquired:
Individually evaluated for impairment	626		4,458		—		2,562		—		7,646
Collectively evaluated for impairment	97,141		38,504		—		134,973		—		270,618
Acquired with deteriorated credit quality	222,125		22,313		—		67,952		—		312,390
Total acquired loans and leases	319,892		65,275		—		205,487		—		590,654
Total loans and leases	$	2,467,801	$	1,167,094	$	316,987	$	870,725	$	—	$	4,822,607

Troubled Debt Restructured Loans and Leases

A specific valuation allowance for losses on troubled debt restructured loans is determined by comparing the net carrying amount of the troubled debt restructured loan with the restructured loan's cash flows discounted at the original effective rate.

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Troubled debt restructurings:
On accrual	$	14,205	$	14,815
On nonaccrual	5,981		5,625
Total troubled debt restructurings	$	20,186	$	20,440

The recorded investment in troubled debt restructurings and the associated specific allowances for loan and lease losses, in the originated and acquired loan and lease portfolios, are as follows for the periods indicated.

	At and for the Three Months Ended June 30, 2015
	Recorded Investment					Specific				Defaulted(1)
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial	3	$	732	$	730	$	122	$	245	$	—	1	245
Total Originated	3	732		730		122		245		—		1	245
Acquired:
Commercial	3	392		391		—		13		—		2	406
Total Acquired	3	392		391		—		13		—		2	406
Total	6	$	1,124	$	1,121	$	122	$	258	$	—	3	$	651

(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

	At and for the Three Months Ended June 30, 2014
	Recorded Investment					Specific				Defaulted(1)
	Number  of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial real estate mortgage	2	$	390	$	365	$	17	$	17	$	—	—	$	—
Equipment financing	1	289		289		—		—		—		1	259
Residential mortgage	1	291		291		—		—		—		—	—
Total Originated	4	970		945		17		17		—		1	259
Acquired:
Commercial	2	253		261		9		261		—		—	—
Total Acquired	2	253		261		9		261		—		—	—
Total	6	$	1,223	$	1,206	$	26	$	278	$	—	1	$	259

(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

	At and for the Six Months Ended June 30, 2015
	Recorded Investment					Specific				Defaulted
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial	4	$	2,702	$	2,371	$	122	$	245	$	—	1	$	245
Equipment financing	1	112		106		—		—		—		—	—
Total Originated	5	2,814		2,477		122		245		—		1	245
Acquired:
Commercial	4	642		641		—		13		—		3	418
Home equity	2	164		164		12		24		—		1	24
Total Acquired	6	806		805		12		37		—		4	442
Total	11	$	3,620	$	3,282	$	134	$	282	$	—	5	$	687

	At and for the Six Months Ended June 30, 2014
	Recorded Investment					Specific				Defaulted
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial real estate mortgage	1	$	953	$	944	$	—	$	—	$	—	—	$	—
Commercial	2	390		365		17		17		—		—	—
Equipment financing	2	673		671		—		—		—		3	349
Residential mortgage	2	789		786		—		495		—		—	—
Total Originated	7	2,805		2,766		17		512		—		3	349
Acquired:
Commercial	2	253		261		9		261		—		—	—
Total Acquired	2	253		261		9		261		—		—	—
Total	9	$	3,058	$	3,027	$	26	$	773	$	—	3	$	349

The following table sets forth the Company’s balances of troubled debt restructurings that were modified at the dates indicated, by type of modification.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In Thousands)
Loans with one modification:
Extended maturity	$	135	$	609	$	409	$	609
Adjusted interest rate	—		—		$	140	$	878
Interest only	—		17		106		17
Total loans with one modification	135		626		655		1,504
Loans with more than one modification:
Extended maturity	986		289		2,627		1,232
Adjusted principal	—		291		—		291
Total loans with more than one modification	986		580		2,627		1,523
Total loans with modifications	$	1,121	$	1,206	$	3,282	$	3,027

The financial impact of the modification of performing and nonperforming loans and leases for the three and six months ended months ended June 30, 2015 was nominal. The financial impact of the modification of performing and nonperforming loans and leases for the three and six months endedJune 30, 2014 was $0.1 million and $0.1 million, respectively.

As of June 30, 2015 and 2014, there were no commitments to lend funds to debtors owing receivables whose terms had been modified in troubled debt restructurings.

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Premises and Equipment

6 Months Ended

Jun. 30, 2015

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and Equipment

In January 2014, the Company completed a transaction to sell a facility located in Brookline, MA, for $2.2 million. The carrying value of the property, including land, building, and furniture, fixtures, and equipment, was $0.4 million. After costs to sell of $0.2 million, the Company recorded a gain on sale in the amount of $1.6 million during the six months endedJune 30, 2014, which is included in gain on sale/disposals of premises and equipment, net in the Company’s unaudited consolidated statements of income. There were no sales of premises and equipment during the three and six months endedJune 30, 2015.

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Investments in Qualified Affordable Housing Projects

6 Months Ended

Jun. 30, 2015

Investments in Affordable Housing Projects [Abstract]

Investments in Qualified Affordable Housing Projects

Investments in Qualified Affordable Housing Projects

The Company began investing in affordable housing projects that benefit low- and moderate-income individuals in 2009. As of June 30, 2015, the Company has investments in 8 of these projects. The project sponsor or general partner controls the project's management. In each case, the Company is a limited partner with less than 50% of the outstanding equity interest in any single project.

On January 1, 2015, the Company adopted ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects, which required retrospective application. Prior to the implementation of ASU 2014-01, the Company’s investments in qualified affordable housing projects were accounted for using the equity method. Under the equity method, operating losses or gains from these investments were included as a component of non-interest income in the Company's consolidated statements of income. ASU 2014-01 calls for the use of the proportional amortization method calculation and the operating losses or gains for these investments are included as a component of the provision for income taxes in the Company’s consolidated statements of income. Under the proportional amortization method, the initial costs of the investment in qualified affordable housing projects is amortized based on the tax credits and other benefits received.

Further information regarding the Company's investments in affordable housing projects follows:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Investments in affordable housing projects included in other assets	$	10,400	$	10,313
Unfunded commitments related to affordable housing projects included in other liabilities	1,982		2,608
Investments in affordable housing projects tax credits included in other liabilities	794		1,432
Investments in affordable housing projects tax benefits included in other liabilities	328		669

	At and for the Three Months Ended    June 30, 2015		At and for the Six Months Ended June 30, 2015
	(In Thousands)
Investment amortization included in pretax income	$	393	$	803
Amount recognized as income tax benefit	151		302

ASU 2014-01 was applied retrospectively to all periods presented. The cumulative effect on retained earnings was $1.1 million at January 1, 2015.

The following table illustrates the prior period adjustments related to the adoption of ASU 2014-01.

	At December 31, 2014
	(In Thousands)
Other assets, as reported	$	79,411
Prior period adjustment	1,068
Other assets, as adjusted	$	80,479
Retained earnings, as reported	$	83,792
Prior period adjustment	1,068
Retained earnings, as adjusted	$	84,860

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	(In Thousands)
Loss from investments in affordable housing projects, as reported	$	539		$	1,043
Prior period adjustment	(539		)	(1,043		)
Loss from investments in affordable housing projects, as adjusted	$	—		$	—
Provision for income taxes, as reported	$	5,774		$	11,769
Prior period adjustment	384			768
Provision for income taxes, as adjusted	$	6,158		$	12,537
Net income, as reported	$	9,976		$	20,398
Prior period adjustment	155			275
Net income, as adjusted	$	10,131		$	20,673
Basic earnings per share, as reported	$	0.14		$	0.29
Prior period adjustment	0.01			0.01
Basic earnings per share, as adjusted	$	0.15		$	0.30
Effective tax rate, as reported	35.58		%	35.59		%
Prior period adjustment	1.15		%	1.17		%
Effective tax rate, as adjusted	36.73		%	36.76		%

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Fair Value of Financial Instruments (Details 3) - Nonrecurring basis - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair value of assets and liabilities
Fair value of assets	$ 19,799	$ 7,832
Level 1
Fair value of assets and liabilities
Fair value of assets	0	0
Level 2
Fair value of assets and liabilities
Fair value of assets	736	503
Level 3
Fair value of assets and liabilities
Fair value of assets	19,063	7,329
Collateral-dependent impaired loans and leases
Fair value of assets and liabilities
Fair value of assets	17,387	6,376
Collateral-dependent impaired loans and leases | Level 1
Fair value of assets and liabilities
Fair value of assets	0	0
Collateral-dependent impaired loans and leases | Level 2
Fair value of assets and liabilities
Fair value of assets	0	0
Collateral-dependent impaired loans and leases | Level 3
Fair value of assets and liabilities
Fair value of assets	17,387	6,376
OREO
Fair value of assets and liabilities
Fair value of assets	1,676	953
OREO | Level 1
Fair value of assets and liabilities
Fair value of assets	0	0
OREO | Level 2
Fair value of assets and liabilities
Fair value of assets	0	0
OREO | Level 3
Fair value of assets and liabilities
Fair value of assets	1,676	953
Repossessed assets
Fair value of assets and liabilities
Fair value of assets	736	503
Repossessed assets | Level 1
Fair value of assets and liabilities
Fair value of assets	0	0
Repossessed assets | Level 2
Fair value of assets and liabilities
Fair value of assets	736	503
Repossessed assets | Level 3
Fair value of assets and liabilities
Fair value of assets	$ 0	$ 0

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Fair Value of Financial Instruments (Details 5) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financial assets:
Investment securities held-to-maturity, fair value	$ 59,993	$ 500
Loans and leases, net	4,673,183	4,768,948
Financial liabilities:
Borrowed funds	31,346	39,615
GSEs
Financial assets:
Investment securities held-to-maturity, fair value	26,728
GSE MBSs
Financial assets:
Investment securities held-to-maturity, fair value	20,775
Municipal obligations
Financial assets:
Investment securities held-to-maturity, fair value	11,990
Foreign government securities
Financial assets:
Investment securities held-to-maturity, fair value	500	500
Level 1
Financial assets:
Investment securities held-to-maturity, fair value		0
Loans held-for-sale	0	0
Loans and leases, net	0	0
Financial liabilities:
Certificates of deposit	0	0
Borrowed funds	0	0
Level 1 | GSEs
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 1 | GSE MBSs
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 1 | Municipal obligations
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 1 | Foreign government securities
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 2
Financial assets:
Investment securities held-to-maturity, fair value		0
Loans held-for-sale	12,482	1,537
Loans and leases, net	0	0
Financial liabilities:
Certificates of deposit	1,051,227	949,320
Borrowed funds	942,799	1,132,940
Level 2 | GSEs
Financial assets:
Investment securities held-to-maturity, fair value	26,728
Level 2 | GSE MBSs
Financial assets:
Investment securities held-to-maturity, fair value	20,775
Level 2 | Municipal obligations
Financial assets:
Investment securities held-to-maturity, fair value	11,990
Level 2 | Foreign government securities
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 3
Financial assets:
Investment securities held-to-maturity, fair value		500
Loans held-for-sale	0	0
Loans and leases, net	4,682,684	4,753,605
Financial liabilities:
Certificates of deposit	0	0
Borrowed funds	0	0
Level 3 | GSEs
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 3 | GSE MBSs
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 3 | Municipal obligations
Financial assets:
Investment securities held-to-maturity, fair value	0
Level 3 | Foreign government securities
Financial assets:
Investment securities held-to-maturity, fair value	500
Carrying Value
Financial assets:
Investment securities held-to-maturity, fair value		500
Loans held-for-sale	12,482	1,537
Loans and leases, net	4,673,183	4,768,948
Financial liabilities:
Certificates of deposit	1,042,923	946,708
Borrowed funds	937,648	1,126,404
Carrying Value | GSEs
Financial assets:
Investment securities held-to-maturity, fair value	26,925
Carrying Value | GSE MBSs
Financial assets:
Investment securities held-to-maturity, fair value	20,993
Carrying Value | Municipal obligations
Financial assets:
Investment securities held-to-maturity, fair value	12,093
Carrying Value | Foreign government securities
Financial assets:
Investment securities held-to-maturity, fair value	500
Estimated Fair Value
Financial assets:
Investment securities held-to-maturity, fair value		500
Loans held-for-sale	12,482	1,537
Loans and leases, net	4,682,684	4,753,605
Financial liabilities:
Certificates of deposit	1,051,227	949,320
Borrowed funds	942,799	$ 1,132,940
Estimated Fair Value | GSEs
Financial assets:
Investment securities held-to-maturity, fair value	26,728
Estimated Fair Value | GSE MBSs
Financial assets:
Investment securities held-to-maturity, fair value	20,775
Estimated Fair Value | Municipal obligations
Financial assets:
Investment securities held-to-maturity, fair value	11,990
Estimated Fair Value | Foreign government securities
Financial assets:
Investment securities held-to-maturity, fair value	$ 500

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Fair Value of Financial Instruments (Details 2) - Securities available for sale - Level 3 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reconciliation of assets measured at fair value on a recurring basis
Investment securities available-for-sale, beginning of period	$ 0	$ 1,690	$ 0	$ 1,775
Investment security sales	0	1,658	0	1,658
Total realized losses included in other income	0	(242)	0	(242)
Total unrealized losses included in other comprehensive income	0	(210)	0	125
Investment securities available-for-sale, end of period	$ 0	$ 0	$ 0	$ 0

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Basis of Presentation (Details) - 6 months ended Jun. 30, 2015	USD ($) bank office
Basis of Presentation
Number of full-service banking offices	24
FDIC insurance limit per depositor | $	$ 250,000
Number of banks on whose deposits insurance coverage was offered | bank	3
Percentage of insurance offered	100.00%
Eastern Funding LLC
Basis of Presentation
Percentage of ownership in subsidiary	84.50%
BankRI
Basis of Presentation
Number of full-service banking offices	19
First Ipswich Bancorp:
Basis of Presentation
Number of full-service banking offices	5

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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill	$ 137,890	$ 137,890
Total other intangible assets	12,082	13,544
Total goodwill and other intangible assets	149,972	151,434
Trade name
Schedule of Goodwill and Intangible Assets [Line Items]
Total other intangible assets	1,089	1,089
Core deposits
Schedule of Goodwill and Intangible Assets [Line Items]
Total other intangible assets	$ 10,993	$ 12,455

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Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

A description of the valuation methodologies used for assets and liabilities measured at fair value on a recurring and non-recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. There were no changes in the valuation techniques used during the three and six months endedJune 30, 2015 and June 30, 2014.

Assets and Liabilities Recorded at Fair Value on a Recurring Basis

The following tables set forth the carrying value of assets and liabilities measured at fair value on a recurring basis at the dates indicated:

	Carrying Value at June 30, 2015
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets:
Investment securities available-for-sale:
Debt securities:
GSEs	$	—	$	18,550	$	—	$	18,550
GSE CMOs	—		214,397		—		214,397
GSE MBSs	—		254,802		—		254,802
SBA commercial loan asset-backed securities	—		179		—		179
Corporate debt obligations	—		40,254		—		40,254
Trust preferred securities	—		1,321		—		1,321
Total debt securities	—		529,503		—		529,503
Marketable equity securities	973		—		—		973
Total investment securities available-for-sale	$	973	$	529,503	$	—	$	530,476
Interest-rate swaps	$	—	$	2,649	$	—	$	2,649
Liabilities:
Interest-rate swaps	$	—	$	2,484	$	—	$	2,484

	Carrying Value at December 31, 2014
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets:
Investment securities available-for-sale:
Debt securities:
GSEs	$	—	$	22,988	$	—	$	22,988
GSE CMOs	—		234,169		—		234,169
GSE MBSs	—		250,981		—		250,981
SBA commercial loan asset-backed securities	—		203		—		203
Corporate debt obligations	—		40,207		—		40,207
Trust preferred securities	—		1,240		—		1,240
Total debt securities	—		549,788		—		549,788
Marketable equity securities	973		—		—		973
Total investment securities available-for-sale	$	973	$	549,788	$	—	$	550,761
Interest-rate swaps	$	—	$	2,676	$	—	$	2,676
Liabilities:
Interest-rate swaps	$	—	$	2,714	$	—	$	2,714

Investment Securities Available-for-Sale

The fair value of investment securities is based principally on market prices and dealer quotes received from third-party and nationally-recognized pricing services for identical investment securities such as U.S. Treasury and agency securities. The Company's marketable equity securities are priced this way and are included in Level 1. These prices are validated by comparing the primary pricing source with an alternative pricing source when available. When quoted market prices for identical securities are unavailable, the Company uses market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include GSE debentures, GSE mortgage-related securities, SBA commercial loan asset backed securities, corporate debt securities, and trust preferred securities, all of which are included in Level 2. As of June 30, 2015 and December 31, 2014, no investment securities are valued using pricing models included in Level 3.

Additionally, management reviews changes in fair value from period to period and performs testing to ensure that prices received from the third parties are consistent with management's expectation of the market. Changes in the prices obtained from the pricing service are analyzed from month to month, taking into consideration changes in market conditions including changes in mortgage spreads, changes in U.S. Treasury security yields and changes in generic pricing of 15-year and 30-year securities. Additional analysis may include a review of prices provided by other independent parties, a yield analysis, a review of average life changes using Bloomberg analytics and a review of historical pricing for a particular security.

Interest-Rate Swaps

The fair values for the interest-rate swap assets and liabilities represent a Level 2 valuation and are based on settlement values adjusted for credit risks associated with the counterparties and the Company and observable market interest rate curves. Credit risk adjustments consider factors such as the likelihood of default by the Company and its counterparties, its net exposures and remaining contractual life. To date, the Company has not realized any losses due to a counterparty’s inability to pay any net uncollateralized position. See also Note 10, “Derivatives and Hedging Activities.”

The reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) is as follows:

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015		2014
	(In Thousands)
Investment securities available-for-sale, beginning of period	$	—	$	1,690		$	—	$	1,775
Investment security sales	—		(1,658		)	—		(1,658		)
Total realized losses included in other income	—		(242		)	—		(242		)
Total unrealized losses included in other comprehensive income	—		210			—		125
Investment securities available-for-sale, end of period	$	—	$	—		$	—	$	—

There were no transfers between levels for assets and liabilities recorded at fair value on a recurring basis during the three and six months endedJune 30, 2015 and 2014.

Assets and Liabilities Recorded at Fair Value on a Non-Recurring Basis

The table below summarizes assets and liabilities measured at fair value on a non-recurring basis at the dates indicated:

	Carrying Value at June 30, 2015
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets measured at fair value on a non-recurring basis:
Collateral-dependent impaired loans and leases	$	—	$	—	$	17,387	$	17,387
OREO	—		—		1,676		1,676
Repossessed assets	—		736		—		736
Total assets measured at fair value on a non-recurring basis	$	—	$	736	$	19,063	$	19,799

	Carrying Value at December 31, 2014
	Level 1		Level 2		Level 3		Total
	(In Thousands)
Assets measured at fair value on a non-recurring basis:
Collateral-dependent impaired loans and leases	$	—	$	—	$	6,376	$	6,376
OREO	—		—		953		953
Repossessed assets	—		503		—		503
Total assets measured at fair value on a non-recurring basis	$	—	$	503	$	7,329	$	7,832

Collateral-Dependent Impaired Loans and Leases

For nonperforming loans and leases where the credit quality of the borrower has deteriorated significantly, fair values of the underlying collateral were estimated using purchase and sales agreements (Level 2), or comparable sales or recent appraisals (Level 3), adjusted for selling costs and other expenses.

Other Real Estate Owned

The Company records other real estate owned at the lower of cost or fair value. In estimating fair value, the Company utilizes purchase and sales agreements (Level 2) or comparable sales, recent appraisals or cash flows discounted at an interest rate commensurate with the risk associated with these cash flows (Level 3), adjusted for selling costs and other expenses.

Repossessed Assets

Repossessed assets are carried at estimated fair value less costs to sell based on auction pricing (Level 2).

The table below presents quantitative information about significant unobservable inputs (Level 3) for assets measured at fair value on a recurring and non-recurring basis at the dates indicated.

	Fair Value				Valuation Technique
	At June 30, 2015		At December 31, 2014
	(Dollars in Thousands)
Collateral-dependent impaired loans and leases	$	17,387	$	6,376	Appraisal of collateral (1)
Other real estate owned	$	1,676	$	953	Appraisal of collateral (1)

(1) Fair value is generally determined through independent appraisals of the underlying collateral. The Company may also use another available source of collateral assessment to determine a reasonable estimate of the fair value of the collateral. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

Summary of Estimated Fair Values of Financial Instruments

The following table presents the carrying amount, estimated fair value, and placement in the fair value hierarchy of the Company’s financial instruments at the dates indicated. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents, FHLBB and FRB stock and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include non-maturity deposits, short-term borrowings and accrued interest payable.

					Fair Value Measurements
	Carrying Value		Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(In Thousands)
At June 30, 2015
Financial assets:
Investment securities held-to-maturity:
GSEs	$	26,925	$	26,728	$	—	$	26,728	$	—
GSE MBSs	20,993		20,775		—		20,775		—
Municipal Obligations	12,093		11,990		—		11,990		—
Foreign Government Obligations	500		500		—		—		500
Loans held-for-sale	12,482		12,482		—		12,482		—
Loans and leases, net	4,673,183		4,682,684		—		—		4,682,684
Financial liabilities:
Certificates of deposit	1,042,923		1,051,227		—		1,051,227		—
Borrowed funds	937,648		942,799		—		942,799		—
At December 31, 2014
Financial assets:
Investment securities held-to-maturity	$	500	$	500	$	—	$	—	$	500
Loans held-for-sale	1,537		1,537		—		1,537		—
Loans and leases, net	4,768,948		4,753,605		—		—		4,753,605
Financial liabilities:
Certificates of deposit	946,708		949,320		—		949,320		—
Borrowed funds	1,126,404		1,132,940		—		1,132,940		—

Investment Securities Held-to-Maturity

The fair values of certain investment securities held-to-maturity are estimated using market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include GSE debentures, GSE MBSs and municipal obligations, all of which are included in Level 2. Additionally, fair values of foreign government obligations are based on comparisons to market prices of similar securities and are considered to be Level 3.

Loans Held-for-Sale

Fair value is measured using quoted market prices when available. These assets are typically categorized as Level 1. If quoted market prices are not available, comparable market values may be utilized. These assets are typically categorized as Level 2.

Loans and Leases

The fair values of performing loans and leases were estimated by segregating the portfolio into its primary loan and lease categories—commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment financing, condominium association, indirect automobile, residential mortgage, home equity and other consumer. These categories were further disaggregated based on significant financial characteristics such as type of interest rate (fixed / variable) and payment status (current / past-due). The Company discounts the contractual cash flows for each loan category using interest rates currently being offered for loans with similar terms to borrowers of similar quality and incorporates estimates of future loan prepayments. This method of estimating fair value does not incorporate the exit price concept of fair value.

Deposits

The fair values of deposit liabilities with no stated maturity (demand, NOW, savings and money market savings accounts) are equal to the carrying amounts payable on demand. The fair value of certificates of deposit represents contractual cash flows discounted using interest rates currently offered on deposits with similar characteristics and remaining maturities. The fair value estimates for deposits do not include the benefit that results from the low-cost funding provided by the Company’s core deposit relationships (deposit-based intangibles).

Borrowed Funds

The fair value of federal funds purchased is equal to the amount borrowed. The fair value of FHLBB advances and repurchase agreements represents contractual repayments discounted using interest rates currently available for borrowings with similar characteristics and remaining maturities. The fair values reported for retail repurchase agreements are based on the discounted value of contractual cash flows. The discount rates used are representative of approximate rates currently offered on borrowings with similar characteristics and maturities. The fair values reported for subordinated deferrable interest debentures are based on the discounted value of contractual cash flows. The discount rates used are representative of approximate rates currently offered on instruments with similar terms and maturities.

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Allowance for Loan and Lease Losses (Tables)

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Schedule of changes in the allowance for loan and lease losses and the recorded investment in loans and leases by portfolio segment

The following tables present the changes in the allowance for loan and lease losses and the recorded investment in loans and leases by portfolio segment for the periods indicated:

	Three Months Ended June 30, 2015
	Commercial Real Estate			Commercial			Indirect Automobile			Consumer			Unallocated		Total
	(In Thousands)
Balance at March 31, 2015	$	29,460		$	19,084		$	458		$	3,619		$	2,485	$	55,106
Charge-offs	(162		)	(245		)	(397		)	(225		)	—		(1,029		)
Recoveries	—			94			410			24			—		528
Credit (provision) for loan and lease losses	(82		)	1,296			(90		)	594			75		1,793
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398

	Three Months Ended June 30, 2014
	Commercial Real Estate		Commercial			Indirect Automobile			Consumer			Unallocated			Total
	(In Thousands)
Balance at March 31, 2014	$	24,858	$	15,544		$	3,664		$	3,110		$	3,048		$	50,224
Charge-offs	—		(796		)	(228		)	(172		)	—			(1,196		)
Recoveries	—		218			173			85			—			476
Provision (credit) for loan and lease losses	1,857		900			77			(6		)	(646		)	2,182
Balance at June 30, 2014	$	26,715	$	15,866		$	3,686		$	3,017		$	2,402		$	51,686

	Six Months Ended June 30, 2015
	Commercial Real Estate			Commercial			Indirect Automobile			Consumer			Unallocated		Total
	(In Thousands)
Balance at December 31, 2014	$	29,594		$	15,957		$	2,331		$	3,359		$	2,418	$	53,659
Charge-offs	(550		)	(695		)	(1,217		)	(232		)	—		(2,694		)
Recoveries	—			306			991			42			—		1,339
Provision (credit) for loan and lease losses	172			4,661			(1,724		)	843			142		4,094
Balance at June 30, 2015	$	29,216		$	20,229		$	381		$	4,012		$	2,560	$	56,398

	Six Months Ended June 30, 2014
	Commercial Real Estate		Commercial			Indirect Automobile			Consumer			Unallocated			Total
	(In Thousands)
Balance at December 31, 2013	$	23,022	$	15,220		$	3,924		$	3,375		$	2,932		$	48,473
Charge-offs	—		(1,347		)	(517		)	(382		)	—			(2,246		)
Recoveries	—		469			277			114			—			860
Provision (credit) for loan and lease losses	3,693		1,524			2			(90		)	(530		)	4,599
Balance at June 30, 2014	$	26,715	$	15,866		$	3,686		$	3,017		$	2,402		$	51,686

Schedule of provisions for credit losses

The provision for credit losses are set forth below for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In Thousands)
Provision (credit) for loan and lease losses:
Commercial real estate	$	(82	)	$	1,857		$	172		$	3,693
Commercial	1,296			900			4,661			1,524
Indirect automobile	(90		)	77			(1,724		)	2
Consumer	594			(6		)	843			(90		)
Unallocated	75			(646		)	142			(530		)
Total provision for loan and lease losses	1,793			2,182			4,094			4,599
Unfunded credit commitments	120			94			82			120
Total provision for credit losses	$	1,913		$	2,276		$	4,176		$	4,719

Summary of the recorded investments in loans in each class (unpaid balance of loans and leases outstanding excluding deferred loan origination costs) by credit quality indicator

The following tables present the recorded investment in loans in each class at June 30, 2015 by credit quality indicator.

	At June 30, 2015
	Commercial Real Estate Mortgage		Multi- Family Mortgage		Construction		Commercial		Equipment Financing		Condominium Association		Other Consumer
	(In Thousands)
Originated:
Loan rating:
Pass	$	1,514,670	$	574,892	$	126,755	$	531,060	$	633,364	$	55,185	$	12,021
OAEM	12,921		1,191		220		7,622		1,198		—		—
Substandard	3,174		309		—		9,171		1,369		—		37
Doubtful	—		—		—		874		1,480		—		—
Total originated	1,530,765		576,392		126,975		548,727		637,411		55,185		12,058
Acquired:
Loan rating:
Pass	213,309		49,233		531		24,813		11,036		—		139
OAEM	5,081		710		—		1,021		—		—		—
Substandard	8,715		1,236		—		3,898		—		—		—
Doubtful	411		—		—		89		—		—		—
Total acquired	227,516		51,179		531		29,821		11,036		—		139
Total loans	$	1,758,281	$	627,571	$	127,506	$	578,548	$	648,447	$	55,185	$	12,197

At June 30, 2015, there were no loans categorized as definite loss.

	At June 30, 2015
	Indirect Automobile
	($ In Thousands)
Originated:
Credit score:
Over 700	$	7,665	39.6	%
661-700	2,815		14.5	%
660 and below	8,762		45.2	%
Data not available	135		0.7	%
Total loans	$	19,377	100.0	%

	At June 30, 2015
	Residential Mortgage				Home Equity
	($ In Thousands)				($ In Thousands)
Originated:
Loan-to-value ratio:
Less than 50%	$	112,562	18.7	%	$	114,866	38.4	%
50% - 69%	204,585		33.9	%	43,341		14.5	%
70% - 79%	169,265		28.1	%	31,228		10.4	%
80% and over	18,758		3.1	%	16,486		5.5	%
Data not available	1,658		0.3	%	914		0.3	%
Total originated	506,828		84.1	%	206,835		69.1	%
Acquired:
Loan-to-value ratio:
Less than 50%	20,598		3.4	%	57,062		19.0	%
50% - 69%	34,968		5.8	%	22,208		7.4	%
70% - 79%	21,280		3.5	%	9,256		3.1	%
80% and over	15,055		2.5	%	3,248		1.1	%
Data not available	4,344		0.7	%	787		0.3	%
Total acquired	96,245		15.9	%	92,561		30.9	%
Total loans	$	603,073	100.0	%	$	299,396	100.0	%

The following tables present the recorded investment in loans in each class at December 31, 2014 by credit quality indicator.

	At December 31, 2014
	Commercial Real Estate Mortgage		Multi- Family Mortgage		Construction		Commercial		Equipment Financing		Condominium Association		Other Consumer
	(In Thousands)
Originated:
Loan rating:
Pass	$	1,402,121	$	574,972	$	146,074	$	447,778	$	583,340	$	51,593	$	11,540
OAEM	22,491		1,242		—		12,193		932		—		—
Substandard	1,009		—		—		1,671		2,338		—		40
Doubtful	—		—		—		1,088		886		—		—
Total originated	1,425,621		576,214		146,074		462,730		587,496		51,593		11,580
Acquired:
Loan rating:
Pass	237,439		60,837		1,709		43,925		13,795		—		167
OAEM	8,351		713		230		1,852		—		—		—
Substandard	8,250		1,942		—		5,424		133		—		—
Doubtful	421		—		—		146		—		—		—
Total acquired	254,461		63,492		1,939		51,347		13,928		—		167
Total loans	$	1,680,082	$	639,706	$	148,013	$	514,077	$	601,424	$	51,593	$	11,747

At December 31, 2014, there were no loans categorized as definite loss.

	At December 31, 2014
	Indirect Automobile
	($ In Thousands)
Originated:
Credit score:
Over 700	$	262,160	82.7	%
661-700	43,422		13.7	%
660 and below	9,927		3.1	%
Data not available	1,478		0.5	%
Total loans	$	316,987	100.0	%

	At December 31, 2014
	Residential Mortgage				Home Equity
	($ In Thousands)				($ In Thousands)
Originated:
Loan-to-value ratio:
Less than 50%	$	105,342	18.4	%	$	113,541	39.6	%
50% - 69%	179,319		31.4	%	35,660		12.4	%
70% - 79%	166,467		29.1	%	27,123		9.4	%
80% and over	19,335		3.4	%	4,195		1.5	%
Data not available	1,615		0.3	%	1,061		0.4	%
Total originated	472,078		82.6	%	181,580		63.2	%
Acquired:
Loan-to-value ratio:
Less than 50%	19,574		3.4	%	70,293		24.5	%
50% - 69%	35,131		6.2	%	22,581		7.9	%
70% - 79%	22,972		4.0	%	10,569		3.7	%
80% and over	16,268		2.8	%	1,178		0.4	%
Data not available	5,897		1.0	%	857		0.3	%
Total acquired	99,842		17.4	%	105,478		36.8	%
Total loans	$	571,920	100.0	%	$	287,058	100.0	%

Schedule of information regarding the aging of past due loans, by loans and leases class

The following tables present an age analysis of the recorded investment in total loans and leases at June 30, 2015 and December 31, 2014.

	At June 30, 2015
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Originated:
Commercial real estate loans:
Commercial real estate mortgage	$	454	$	2,147	$	1,235	$	3,836	$	1,526,929	$	1,530,765	$	208	$	3,174
Multi-family mortgage	—		—		309		309		576,083		576,392		—		309
Construction	—		—		—		—		126,975		126,975		—		—
Total commercial real estate loans	454		2,147		1,544		4,145		2,229,987		2,234,132		208		3,483
Commercial loans and leases:
Commercial	4,589		3,545		1,040		9,174		539,553		548,727		—		8,996
Equipment financing	2,005		306		2,020		4,331		633,080		637,411		1		2,639
Condominium association	—		—		—		—		55,185		55,185		—		—
Total commercial loans and leases	6,594		3,851		3,060		13,505		1,227,818		1,241,323		1		11,635
Indirect automobile	1,492		477		76		2,045		17,332		19,377		—		417
Consumer loans:
Residential mortgage	—		—		229		229		506,599		506,828		—		2,251
Home equity	51		—		106		157		206,678		206,835		—		159
Other consumer	273		3		34		310		11,748		12,058		1		42
Total consumer loans	324		3		369		696		725,025		725,721		1		2,452
Total originated loans and leases	$	8,864	$	6,478	$	5,049	$	20,391	$	4,200,162	$	4,220,553	$	210	$	17,987

	At June 30, 2015
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Acquired:
Commercial real estate loans:
Commercial real estate mortgage	$	1,183	$	527	$	4,409	$	6,119	$	221,397	$	227,516	$	4,409	$	—
Multi-family mortgage	—		—		2,391		2,391		48,788		51,179		2,391		—
Construction	—		—		—		—		531		531		—		—
Total commercial real estate loans	1,183		527		6,800		8,510		270,716		279,226		6,800		—
Commercial loans and leases:
Commercial	941		—		3,611		4,552		25,269		29,821		343		3,320
Equipment financing	26		—		—		26		11,010		11,036		—		—
Total commercial loans and leases	967		—		3,611		4,578		36,279		40,857		343		3,320
Consumer loans:
Residential mortgage	912		—		2,862		3,774		92,471		96,245		2,692		170
Home equity	562		164		1,126		1,852		90,709		92,561		175		1,985
Other consumer	—		—		—		—		139		139		—		—
Total consumer loans	1,474		164		3,988		5,626		183,319		188,945		2,867		2,155
Total acquired loans and leases	$	3,624	$	691	$	14,399	$	18,714	$	490,314	$	509,028	$	10,010	$	5,475
Total loans and leases	$	12,488	$	7,169	$	19,448	$	39,105	$	4,690,476	$	4,729,581	$	10,220	$	23,462

	At December 31, 2014
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Originated:
Commercial real estate loans:
Commercial real estate mortgage	$	1,631	$	416	$	160	$	2,207	$	1,423,414	$	1,425,621	$	—	$	1,009
Multi-family mortgage	385		—		—		385		575,829		576,214		—		—
Construction	—		—		—		—		146,074		146,074		—		—
Total commercial real estate loans	2,016		416		160		2,592		2,145,317		2,147,909		—		1,009
Commercial loans and leases:
Commercial	758		876		1,499		3,133		459,597		462,730		2		2,722
Equipment financing	1,534		138		2,392		4,064		583,432		587,496		—		3,214
Condominium association	501		—		—		501		51,092		51,593		—		—
Total commercial loans and leases	2,793		1,014		3,891		7,698		1,094,121		1,101,819		2		5,936
Indirect automobile	4,635		923		166		5,724		311,263		316,987		—		645
Consumer loans:
Residential mortgage	—		—		501		501		471,577		472,078		—		1,340
Home equity	75		52		129		256		181,324		181,580		—		161
Other consumer	17		5		30		52		11,528		11,580		—		41
Total consumer loans	92		57		660		809		664,429		665,238		—		1,542
Total originated loans and leases	$	9,536	$	2,410	$	4,877	$	16,823	$	4,215,130	$	4,231,953	$	2	$	9,132

	At December 31, 2014
	Past Due												Loans and Leases Past
	31-60 Days		61-90 Days		Greater  Than 90  Days		Total		Current		Total Loans and Leases		Due Greater Than 90 Days and Accruing		Nonaccrual Loans and Leases
	(In Thousands)
Acquired:
Commercial real estate loans:
Commercial real estate mortgage	$	989	$	3,705	$	2,387	$	7,081	$	247,380	$	254,461	$	2,387	$	—
Multi-family mortgage	195		729		363		1,287		62,205		63,492		363		—
Construction	—		—		—		—		1,939		1,939		—		—
Total commercial real estate loans	1,184		4,434		2,750		8,368		311,524		319,892		2,750		—
Commercial loans and leases:
Commercial	712		488		3,033		4,233		47,114		51,347		624		2,474
Equipment financing	2		52		66		120		13,808		13,928		73		9
Total commercial loans and leases	714		540		3,099		4,353		60,922		65,275		697		2,483
Consumer loans:
Residential mortgage	—		—		2,715		2,715		97,127		99,842		2,372		342
Home equity	1,005		733		923		2,661		102,817		105,478		187		1,757
Other consumer	—		—		—		—		167		167		—		—
Total consumer loans	1,005		733		3,638		5,376		200,111		205,487		2,559		2,099
Total acquired loans and leases	$	2,903	$	5,707	$	9,487	$	18,097	$	572,557	$	590,654	$	6,006	$	4,582
Total loan and leases	$	12,439	$	8,117	$	14,364	$	34,920	$	4,787,687	$	4,822,607	$	6,008	$	13,714

Schedule of impaired loans and leases, by loans and leases class

The following tables include the recorded investment and unpaid principal balances of impaired loans and leases with the related allowance amount, if applicable, for the originated and acquired loan and lease portfolios at the dates indicated. Also presented are the average recorded investments in the impaired loans and leases and the related amount of interest recognized during the period that the impaired loans were impaired.

	At June 30, 2015						At December 31, 2014
	Recorded Investment (1)		Unpaid Principal Balance		Related Allowance		Recorded Investment (2)		Unpaid Principal Balance		Related Allowance
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,198	$	5,193	$	—	$	2,751	$	2,748	$	—
Commercial	14,494		14,468		—		13,440		13,421		—
Consumer	3,951		3,946		—		3,055		3,048		—
Total originated with no related allowance recorded	23,643		23,607		—		19,246		19,217		—
With an allowance recorded:
Commercial real estate	4,087		4,087		88		4,119		4,119		108
Commercial	6,462		6,454		2,405		2,019		2,011		768
Consumer	163		162		—		176		176		10
Total originated with an allowance recorded	10,712		10,703		2,493		6,314		6,306		886
Total originated impaired loans and leases	34,355		34,310		2,493		25,560		25,523		886
Acquired:
With no related allowance recorded:
Commercial real estate	8,263		8,264		—		9,413		9,428		—
Commercial	4,824		4,824		—		6,049		6,047		—
Consumer	8,263		8,278		—		6,688		6,688		—
Total acquired with no related allowance recorded	21,350		21,366		—		22,150		22,163		—
With an allowance recorded:
Commercial real estate	—		—		—		244		244		22
Commercial	598		598		238		478		478		214
Consumer	366		366		47		225		225		41
Total acquired with an allowance recorded	964		964		285		947		947		277
Total acquired impaired loans and leases	22,314		22,330		285		23,097		23,110		277
Total impaired loans and leases	$	56,669	$	56,640	$	2,778	$	48,657	$	48,633	$	1,163

⁽¹⁾Includes originated and acquired nonaccrual loans of $16.3 million and $5.5 million, respectively, at June 30, 2015.

⁽²⁾Includes originated and acquired nonaccrual loans of $7.1 million and $4.6 million, respectively, at December 31, 2014.

	Three Months Ended
	June 30, 2015				June 30, 2014
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,204	$	21	$	947	$	12
Commercial	14,942		151		5,711		62
Consumer	3,966		15		128		—
Total originated with no related allowance recorded	24,112		187		6,786		74
With an allowance recorded:
Commercial real estate	4,092		49		3,010		22
Commercial	6,497		3		3,800		24
Consumer	165		—		3,582		15
Total originated with an allowance recorded	10,754		52		10,392		61
Total originated impaired loans and leases	34,866		239		17,178		135
Acquired:
With no related allowance recorded:
Commercial real estate	8,596		38		20,402		182
Commercial	4,931		17		6,775		23
Consumer	8,295		14		4,807		5
Total acquired with no related allowance recorded	21,822		69		31,984		210
With an allowance recorded:
Commercial real estate	—		—		1,522		3
Commercial	598		—		1,948		14
Consumer	370		3		770		1
Total acquired with an allowance recorded	968		3		4,240		18
Total acquired impaired loans and leases	22,790		72		36,224		228
Total impaired loans and leases	$	57,656	$	311	$	53,402	$	363

	Six Months Ended
	June 30, 2015				June 30, 2014
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In Thousands)
Originated:
With no related allowance recorded:
Commercial real estate	$	5,066	$	44	$	2,422	$	48
Commercial	15,086		303		4,796		70
Consumer	4,023		30		1,980		13
Total originated with no related allowance recorded	24,175		377		9,198		131
With an allowance recorded:
Commercial real estate	4,100		99		1,587		22
Commercial	6,180		6		3,728		48
Consumer	168		—		1,940		15
Total originated with an allowance recorded	10,448		105		7,255		85
Total originated impaired loans and leases	34,623		482		16,453		216
Acquired:
With no related allowance recorded:
Commercial real estate	9,462		75		13,990		228
Commercial	4,717		32		7,498		59
Consumer	7,843		29		6,539		10
Total acquired with no related allowance recorded	22,022		136		28,027		297
With an allowance recorded:
Commercial real estate	122		—		2,971		40
Commercial	735		—		1,247		15
Consumer	365		5		385		1
Total acquired with an allowance recorded	1,222		5		4,603		56
Total acquired impaired loans and leases	23,244		141		32,630		353
Total impaired loans and leases	$	57,867	$	623	$	49,083	$	569

Schedule of the impaired and non-impaired loans and leases, by loan and leases class

The following tables present information regarding impaired and non-impaired loans and leases at the dates indicated:

	At June 30, 2015
	Commercial Real Estate		Commercial		Indirect Automobile		Consumer		Unallocated		Total
	(In Thousands)
Allowance for Loan and Lease Losses:
Originated:
Individually evaluated for impairment	$	88	$	2,405	$	—	$	—	$	—	$	2,493
Collectively evaluated for impairment	27,471		17,291		381		3,547		2,560		51,250
Total originated loans and leases	27,559		19,696		381		3,547		2,560		53,743
Acquired:
Individually evaluated for impairment	—		238		—		46		—		284
Collectively evaluated for impairment	620		199		—		61		—		880
Acquired with deteriorated credit quality	1,037		96		—		358		—		1,491
Total acquired loans and leases	1,657		533		—		465		—		2,655
Total allowance for loan and lease losses	$	29,216	$	20,229	$	381	$	4,012	$	2,560	$	56,398
Loans and Leases:
Originated:
Individually evaluated for impairment	$	9,285	$	20,956	$	—	$	4,114	$	—	$	34,355
Collectively evaluated for impairment	2,224,847		1,220,367		19,377		721,607		—		4,186,198
Total originated loans and leases	2,234,132		1,241,323		19,377		725,721		—		4,220,553
Acquired:
Individually evaluated for impairment	605		4,667		—		3,370		—		8,642
Collectively evaluated for impairment	79,356		22,915		—		118,337		—		220,608
Acquired with deteriorated credit quality	199,265		13,275		—		67,238		—		279,778
Total acquired loans and leases	279,226		40,857		—		188,945		—		509,028
Total loans and leases	$	2,513,358	$	1,282,180	$	19,377	$	914,666	$	—	$	4,729,581

	At December 31, 2014
	Commercial Real Estate		Commercial		Indirect Automobile		Consumer		Unallocated		Total
	(In Thousands)
Allowance for Loan and Lease Losses:
Originated:
Individually evaluated for impairment	$	108	$	768	$	—	$	10	$	—	$	886
Collectively evaluated for impairment	27,457		14,631		2,331		3,088		2,418		49,925
Total originated loans and leases	27,565		15,399		2,331		3,098		2,418		50,811
Acquired:
Individually evaluated for impairment	—		144		—		41		—		185
Collectively evaluated for impairment	648		222		—		2		—		872
Acquired with deteriorated credit quality	1,381		192		—		218		—		1,791
Total acquired loans and leases	2,029		558		—		261		—		2,848
Total allowance for loan and lease losses	$	29,594	$	15,957	$	2,331	$	3,359	$	2,418	$	53,659
Loans and Leases:
Originated:
Individually evaluated for impairment	$	6,870	$	15,459	$	—	$	3,231	$	—	$	25,560
Collectively evaluated for impairment	2,141,039		1,086,360		316,987		662,007		—		4,206,393
Total originated loans and leases	2,147,909		1,101,819		316,987		665,238		—		4,231,953
Acquired:
Individually evaluated for impairment	626		4,458		—		2,562		—		7,646
Collectively evaluated for impairment	97,141		38,504		—		134,973		—		270,618
Acquired with deteriorated credit quality	222,125		22,313		—		67,952		—		312,390
Total acquired loans and leases	319,892		65,275		—		205,487		—		590,654
Total loans and leases	$	2,467,801	$	1,167,094	$	316,987	$	870,725	$	—	$	4,822,607

Information regarding troubled debt restructuring loans

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Troubled debt restructurings:
On accrual	$	14,205	$	14,815
On nonaccrual	5,981		5,625
Total troubled debt restructurings	$	20,186	$	20,440

Summary of investment in troubled debt restructurings, and the associated specific allowances for loan and lease losses

The recorded investment in troubled debt restructurings and the associated specific allowances for loan and lease losses, in the originated and acquired loan and lease portfolios, are as follows for the periods indicated.

	At and for the Three Months Ended June 30, 2015
	Recorded Investment					Specific				Defaulted(1)
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial	3	$	732	$	730	$	122	$	245	$	—	1	245
Total Originated	3	732		730		122		245		—		1	245
Acquired:
Commercial	3	392		391		—		13		—		2	406
Total Acquired	3	392		391		—		13		—		2	406
Total	6	$	1,124	$	1,121	$	122	$	258	$	—	3	$	651

(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

	At and for the Three Months Ended June 30, 2014
	Recorded Investment					Specific				Defaulted(1)
	Number  of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial real estate mortgage	2	$	390	$	365	$	17	$	17	$	—	—	$	—
Equipment financing	1	289		289		—		—		—		1	259
Residential mortgage	1	291		291		—		—		—		—	—
Total Originated	4	970		945		17		17		—		1	259
Acquired:
Commercial	2	253		261		9		261		—		—	—
Total Acquired	2	253		261		9		261		—		—	—
Total	6	$	1,223	$	1,206	$	26	$	278	$	—	1	$	259

(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

	At and for the Six Months Ended June 30, 2015
	Recorded Investment					Specific				Defaulted
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial	4	$	2,702	$	2,371	$	122	$	245	$	—	1	$	245
Equipment financing	1	112		106		—		—		—		—	—
Total Originated	5	2,814		2,477		122		245		—		1	245
Acquired:
Commercial	4	642		641		—		13		—		3	418
Home equity	2	164		164		12		24		—		1	24
Total Acquired	6	806		805		12		37		—		4	442
Total	11	$	3,620	$	3,282	$	134	$	282	$	—	5	$	687

	At and for the Six Months Ended June 30, 2014
	Recorded Investment					Specific				Defaulted
	Number of Loans/ Leases	At Modification		At End of Period		Allowance for Loan and Lease Losses		Nonaccrual Loans and Leases		Additional Commitment		Number of Loans/ Leases	Recorded Investment
	(Dollars in Thousands)
Originated:
Commercial real estate mortgage	1	$	953	$	944	$	—	$	—	$	—	—	$	—
Commercial	2	390		365		17		17		—		—	—
Equipment financing	2	673		671		—		—		—		3	349
Residential mortgage	2	789		786		—		495		—		—	—
Total Originated	7	2,805		2,766		17		512		—		3	349
Acquired:
Commercial	2	253		261		9		261		—		—	—
Total Acquired	2	253		261		9		261		—		—	—
Total	9	$	3,058	$	3,027	$	26	$	773	$	—	3	$	349

Schedule of troubled debt restructurings by type of modification

The following table sets forth the Company’s balances of troubled debt restructurings that were modified at the dates indicated, by type of modification.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In Thousands)
Loans with one modification:
Extended maturity	$	135	$	609	$	409	$	609
Adjusted interest rate	—		—		$	140	$	878
Interest only	—		17		106		17
Total loans with one modification	135		626		655		1,504
Loans with more than one modification:
Extended maturity	986		289		2,627		1,232
Adjusted principal	—		291		—		291
Total loans with more than one modification	986		580		2,627		1,523
Total loans with modifications	$	1,121	$	1,206	$	3,282	$	3,027

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Allowance for Loan and Lease Losses (Details 6)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) loan	Jun. 30, 2014 USD ($) loan	Jun. 30, 2015 USD ($) loan	Jun. 30, 2014 USD ($) loan	Dec. 31, 2014 USD ($)
Troubled debt restructurings:
On accrual	$ 14,205,000		$ 14,205,000		$ 14,815,000
On nonaccrual	5,981,000		5,981,000		5,625,000
Total troubled debt restructurings	$ 20,186,000		$ 20,186,000		$ 20,440,000
Number of loans | loan	6	6	11	9
Recorded Investment, At modification	$ 1,124,000	$ 1,223,000	$ 3,620,000	$ 3,058,000
Recorded Investment, At end of period	1,121,000	1,206,000	3,282,000	3,027,000
Specific Allowance for Loan and Lease Losses	122,000	26,000	134,000	26,000
Nonaccrual Loans and Leases/Recorded Investment	$ 258,000	$ 278,000	$ 282,000	$ 773,000
Defaulted, number of loans/leases | loan	3	1	5	3
Defaulted, recorded investment	$ 651,000	$ 259,000	$ 687,000	$ 349,000
Total loans with one modification	135,000	626,000	655,000	1,504,000
Total loans with more than one modification	$ 986,000	580,000	2,627,000	1,523,000
Financial impact of modification of performing and nonperforming loans		$ 100,000		100,000
Commitments to lend funds to debtors owing receivables whose terms had been modified in troubled debt restructurings			$ 0	$ 0
Originated
Troubled debt restructurings:
Number of loans | loan	3	4	5	7
Recorded Investment, At modification	$ 732,000	$ 970,000	$ 2,814,000	$ 2,805,000
Recorded Investment, At end of period	730,000	945,000	2,477,000	2,766,000
Specific Allowance for Loan and Lease Losses	122,000	17,000	122,000	17,000
Nonaccrual Loans and Leases/Recorded Investment	$ 245,000	$ 17,000	$ 245,000	$ 512,000
Defaulted, number of loans/leases | loan	1	1	1	3
Defaulted, recorded investment	$ 245,000	$ 259,000	$ 245,000	$ 349,000
Acquired
Troubled debt restructurings:
Number of loans | loan	3	2	6	2
Recorded Investment, At modification	$ 392,000	$ 253,000	$ 806,000	$ 253,000
Recorded Investment, At end of period	391,000	261,000	805,000	261,000
Specific Allowance for Loan and Lease Losses	0	9,000	12,000	9,000
Nonaccrual Loans and Leases/Recorded Investment	$ 13,000	$ 261,000	$ 37,000	$ 261,000
Defaulted, number of loans/leases | loan	2	0	4	0
Defaulted, recorded investment	$ 406,000	$ 0	$ 442,000	$ 0
Extended maturity
Troubled debt restructurings:
Total loans with one modification	135,000	609,000	409,000	609,000
Total loans with more than one modification	986,000	289,000	2,627,000	1,232,000
Adjusted principal
Troubled debt restructurings:
Total loans with more than one modification	0	291,000	0	291,000
Adjusted interest rate
Troubled debt restructurings:
Total loans with one modification	0	0	140,000	878,000
Interest only
Troubled debt restructurings:
Total loans with one modification	$ 0	$ 17,000	$ 106,000	$ 17,000
Commercial real estate mortgage | Originated
Troubled debt restructurings:
Number of loans | loan		2		1
Recorded Investment, At modification		$ 390,000		$ 953,000
Recorded Investment, At end of period		365,000		944,000
Specific Allowance for Loan and Lease Losses		17,000		0
Nonaccrual Loans and Leases/Recorded Investment		$ 17,000		$ 0
Defaulted, number of loans/leases | loan		0		0
Defaulted, recorded investment		$ 0		$ 0
Commercial | Originated
Troubled debt restructurings:
Number of loans | loan	3		4	2
Recorded Investment, At modification	$ 732,000		$ 2,702,000	$ 390,000
Recorded Investment, At end of period	730,000		2,371,000	365,000
Specific Allowance for Loan and Lease Losses	122,000		122,000	17,000
Nonaccrual Loans and Leases/Recorded Investment	$ 245,000		$ 245,000	$ 17,000
Defaulted, number of loans/leases | loan	1		1	0
Defaulted, recorded investment	$ 245,000		$ 245,000	$ 0
Commercial | Acquired
Troubled debt restructurings:
Number of loans | loan	3	2	4	2
Recorded Investment, At modification	$ 392,000	$ 253,000	$ 642,000	$ 253,000
Recorded Investment, At end of period	391,000	261,000	641,000	261,000
Specific Allowance for Loan and Lease Losses	0	9,000	0	9,000
Nonaccrual Loans and Leases/Recorded Investment	$ 13,000	$ 261,000	$ 13,000	$ 261,000
Defaulted, number of loans/leases | loan	2	0	3	0
Defaulted, recorded investment	$ 406,000	$ 0	$ 418,000	$ 0
Equipment financing | Originated
Troubled debt restructurings:
Number of loans | loan		1	1	2
Recorded Investment, At modification		$ 289,000	$ 112,000	$ 673,000
Recorded Investment, At end of period		289,000	106,000	671,000
Specific Allowance for Loan and Lease Losses		0	0	0
Nonaccrual Loans and Leases/Recorded Investment		$ 0	$ 0	$ 0
Defaulted, number of loans/leases | loan		1	0	3
Defaulted, recorded investment		$ 259,000	$ 0	$ 349,000
Residential mortgage | Originated
Troubled debt restructurings:
Number of loans | loan		1		2
Recorded Investment, At modification		$ 291,000		$ 789,000
Recorded Investment, At end of period		291,000		786,000
Specific Allowance for Loan and Lease Losses		0		0
Nonaccrual Loans and Leases/Recorded Investment		$ 0		$ 495,000
Defaulted, number of loans/leases | loan		0		0
Defaulted, recorded investment		$ 0		$ 0
Home equity | Acquired
Troubled debt restructurings:
Number of loans | loan			2
Recorded Investment, At modification			$ 164,000
Recorded Investment, At end of period			164,000
Specific Allowance for Loan and Lease Losses			12,000
Nonaccrual Loans and Leases/Recorded Investment			$ 24,000
Defaulted, number of loans/leases | loan			1
Defaulted, recorded investment			$ 24,000

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Loans and Leases (Details) - USD ($)		3 Months Ended			6 Months Ended		12 Months Ended
		Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		$ 4,220,553,000			$ 4,220,553,000		$ 4,231,953,000
Originated, Weighted Average Coupon (as a percent)					4.37%		4.43%
Acquired loans		509,028,000			$ 509,028,000		$ 590,654,000
Acquired, Weighted Average Coupon (as a percent)					4.19%		4.19%
Total Loans and Leases		4,729,581,000			$ 4,729,581,000		$ 4,822,607,000
Total, Weighted Average Coupon (as a percent)					4.35%		4.40%
Percentage of loans to aggregate outstanding amount in the greater New York/New Jersey metropolitan area					34.50%		35.90%
Percentage of loans to aggregate outstanding amount in other areas of the United States					65.50%		64.10%
Proceeds from sale of loan portfolio	[1]				$ 15,379,000	$ 15,922,000
Loss on sale of loans		(279,000)		$ (54,000)	(1,148,000)	$ (656,000)
Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		2,234,132,000			$ 2,234,132,000		$ 2,147,909,000
Originated, Weighted Average Coupon (as a percent)					4.04%		4.13%
Acquired loans		279,226,000			$ 279,226,000		$ 319,892,000
Acquired, Weighted Average Coupon (as a percent)					4.24%		4.34%
Total Loans and Leases		2,513,358,000			$ 2,513,358,000		$ 2,467,801,000
Total, Weighted Average Coupon (as a percent)					4.06%		4.16%
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		1,530,765,000			$ 1,530,765,000		$ 1,425,621,000
Originated, Weighted Average Coupon (as a percent)					4.06%		4.18%
Acquired loans		227,516,000			$ 227,516,000		$ 254,461,000
Acquired, Weighted Average Coupon (as a percent)					4.19%		4.29%
Total Loans and Leases		1,758,281,000			$ 1,758,281,000		$ 1,680,082,000
Total, Weighted Average Coupon (as a percent)					4.08%		4.20%
Multi-family mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		576,392,000			$ 576,392,000		$ 576,214,000
Originated, Weighted Average Coupon (as a percent)					4.06%		4.11%
Acquired loans		51,179,000			$ 51,179,000		$ 63,492,000
Acquired, Weighted Average Coupon (as a percent)					4.45%		4.50%
Total Loans and Leases		627,571,000			$ 627,571,000		$ 639,706,000
Total, Weighted Average Coupon (as a percent)					4.09%		4.15%
Construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		126,975,000			$ 126,975,000		$ 146,074,000
Originated, Weighted Average Coupon (as a percent)					3.67%		3.79%
Acquired loans		531,000			$ 531,000		$ 1,939,000
Acquired, Weighted Average Coupon (as a percent)					4.97%		5.50%
Total Loans and Leases		127,506,000			$ 127,506,000		$ 148,013,000
Total, Weighted Average Coupon (as a percent)					3.68%		3.81%
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		1,241,323,000			$ 1,241,323,000		$ 1,101,819,000
Originated, Weighted Average Coupon (as a percent)					5.41%		5.53%
Acquired loans		40,857,000			$ 40,857,000		$ 65,275,000
Acquired, Weighted Average Coupon (as a percent)					5.27%		4.58%
Total Loans and Leases		1,282,180,000			$ 1,282,180,000		$ 1,167,094,000
Total, Weighted Average Coupon (as a percent)					5.41%		5.48%
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		548,727,000			$ 548,727,000		$ 462,730,000
Originated, Weighted Average Coupon (as a percent)					3.80%		3.88%
Acquired loans		29,821,000			$ 29,821,000		$ 51,347,000
Acquired, Weighted Average Coupon (as a percent)					4.97%		4.14%
Total Loans and Leases		578,548,000			$ 578,548,000		$ 514,077,000
Total, Weighted Average Coupon (as a percent)					3.86%		3.91%
Equipment financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		637,411,000			$ 637,411,000		$ 587,496,000
Originated, Weighted Average Coupon (as a percent)					6.88%		6.92%
Acquired loans		11,036,000			$ 11,036,000		$ 13,928,000
Acquired, Weighted Average Coupon (as a percent)					6.07%		6.22%
Total Loans and Leases		648,447,000			$ 648,447,000		$ 601,424,000
Total, Weighted Average Coupon (as a percent)					6.87%		6.90%
Condominium association
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		55,185,000			$ 55,185,000		$ 51,593,000
Originated, Weighted Average Coupon (as a percent)					4.54%		4.60%
Acquired loans		0			$ 0		$ 0
Acquired, Weighted Average Coupon (as a percent)					0.00%		0.00%
Total Loans and Leases		55,185,000			$ 55,185,000		$ 51,593,000
Total, Weighted Average Coupon (as a percent)					4.54%		4.60%
Indirect automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		19,377,000			$ 19,377,000		$ 316,987,000
Originated, Weighted Average Coupon (as a percent)					5.61%		4.47%
Acquired loans		0			$ 0		$ 0
Acquired, Weighted Average Coupon (as a percent)					0.00%		0.00%
Total Loans and Leases		19,377,000			$ 19,377,000		$ 316,987,000
Total, Weighted Average Coupon (as a percent)					5.61%		4.47%
Percent of loan portfolio sold, over 90%			90.00%
Proceeds from sale of loan portfolio			$ 255,200,000
Loss on sale of loans			$ 11,800
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		725,721,000			$ 725,721,000		$ 665,238,000
Originated, Weighted Average Coupon (as a percent)					3.56%		3.56%
Acquired loans		188,945,000			$ 188,945,000		$ 205,487,000
Acquired, Weighted Average Coupon (as a percent)					3.88%		3.82%
Total Loans and Leases		914,666,000			$ 914,666,000		$ 870,725,000
Total, Weighted Average Coupon (as a percent)					3.63%		3.62%
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		506,828,000			$ 506,828,000		$ 472,078,000
Originated, Weighted Average Coupon (as a percent)					3.62%		3.60%
Acquired loans		96,245,000			$ 96,245,000		$ 99,842,000
Acquired, Weighted Average Coupon (as a percent)					3.87%		3.77%
Total Loans and Leases		603,073,000			$ 603,073,000		$ 571,920,000
Total, Weighted Average Coupon (as a percent)					3.66%		3.63%
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		206,835,000			$ 206,835,000		$ 181,580,000
Originated, Weighted Average Coupon (as a percent)					3.32%		3.35%
Acquired loans		92,561,000			$ 92,561,000		$ 105,478,000
Acquired, Weighted Average Coupon (as a percent)					3.87%		3.85%
Total Loans and Leases		299,396,000			$ 299,396,000		$ 287,058,000
Total, Weighted Average Coupon (as a percent)					3.50%		3.53%
Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans		12,058,000			$ 12,058,000		$ 11,580,000
Originated, Weighted Average Coupon (as a percent)					4.98%		5.13%
Acquired loans		139,000			$ 139,000		$ 167,000
Acquired, Weighted Average Coupon (as a percent)					16.80%		16.35%
Total Loans and Leases		$ 12,197,000			$ 12,197,000		$ 11,747,000
Total, Weighted Average Coupon (as a percent)					5.12%		5.29%

[1] Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Unaudited Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interest in subsidiary	[1]	$ 12,559	$ 10,607	$ 24,864		$ 21,571
Investment securities available-for-sale:
Unrealized securities holding (losses) gains		(5,484)	4,350	(113)		7,643
Income tax benefit (expense)		1,962	(1,631)	(40)		(2,893)
Net unrealized securities holding (losses) gains		(3,522)	2,719	(153)		4,750
Less reclassification adjustments for securities losses included in net income:
Loss on sales of securities, net		0	(13)	0		(13)
Income tax benefit		0	5	0		5
Net reclassification adjustments for securities losses included in net income		0	(8)	0		(8)
Net securities holding (losses) gains		(3,522)	2,727	(153)		4,758
Postretirement benefits:
Adjustment of accumulated obligation for postretirement benefits		0	0	0		(85)
Income tax benefit		0	0	0		33
Net adjustment of accumulated obligation for postretirement benefits		0	0	0		(52)
Other comprehensive (loss) income, net of taxes		(3,522)	2,727	(153)	[1]	4,706	[1]
Comprehensive income	[1]	9,037	13,334	24,711		26,277
Net income attributable to noncontrolling interest in subsidiary		694	476	1,296		898
Comprehensive income attributable to Brookline Bancorp, Inc.	[1]	$ 8,343	$ 12,858	$ 23,415		$ 25,379

[1] Previously reported amounts have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01. Refer to Note 8, "Investments in Qualified Affordable Projects".(2) Cash flows resulting from the sale of the indirect automobile portfolio and the OREO and repossessed assets which had been recorded as cash provided from operating activities in the prior filings have been revised to cash flows from investing activities in the second quarter to properly reflect the cash flow activity. There is no impact to the Company's net income or related per share amounts for the six months ended June 30, 2015 and June 30, 2014.

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Recent Accounting Pronouncements

6 Months Ended

Jun. 30, 2015

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This ASU requires that all debt issuance costs be presented in the balance sheet as direct deductions from the carrying amount of the related debt liability. Amortization of the costs is reported as interest expense. This ASU is applied retrospectively for the first interim or annual period presented beginning after December 15, 2015; early adoption is permitted. As of June 30, 2015, the Company has accounted for its debt issuance cost as a reduction of the debt liability.

The Company adopted ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects, which required retrospective application. Refer to Note 8, "Investments in Qualified Affordable Projects" for the impact the adoption had on the Company's financial statements.

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Derivatives and Hedging Activities (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) derivative	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) derivative	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) derivative
Asset Derivatives
Total derivatives (interest-rate products) not designated as hedging instruments	$ 2,649,000		$ 2,649,000		$ 2,676,000
Liability Derivatives
Total derivatives (interest-rate products) not designated as hedging instruments	2,484,000		2,484,000		2,714,000
Gain (Loss) Recognized in Income on Derivatives
Estimated net credit risk exposure	0		0		38,000
Posted collateral	$ 7,800,000		$ 7,800,000		$ 5,400,000
Derivatives not designated as hedging instruments | Interest-rate swaps
Derivatives and Hedging Activities
Number of interest-rate swaps | derivative	34		34		22
Notional amount of interest-rate swaps	$ 224,700,000		$ 224,700,000		$ 109,400,000
Derivatives not designated as hedging instruments | Interest-rate products
Asset Derivatives
Total derivatives (interest-rate products) not designated as hedging instruments	2,649,000		2,649,000		2,676,000
Liability Derivatives
Total derivatives (interest-rate products) not designated as hedging instruments	2,484,000		2,484,000		$ 2,714,000
Gain (Loss) Recognized in Income on Derivatives
Gain recognized in income on derivatives	$ 295,000	$ 4,000	$ 204,000	$ 6,000

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Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of composition of goodwill and other intangible assets

The following table sets forth the carrying value of goodwill and other intangible assets at the dates indicated:

	At June 30, 2015		At December 31, 2014
	(In Thousands)
Goodwill	$	137,890	$	137,890
Other intangible assets:
Core deposits	10,993		12,455
Trade name	1,089		1,089
Total other intangible assets	12,082		13,544
Total goodwill and other intangible assets	$	149,972	$	151,434

Schedule of estimated aggregate future amortization expense for intangible assets

The estimated aggregate future amortization expense (in thousands) for intangible assets with a finite life remaining at June 30, 2015 is as follows:

Remainder of 2015	$	1,449
Year ending:
2016	2,500
2017	2,089
2018	1,669
2019	1,295
Thereafter	1,991
Total	$	10,993

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Investment Securities (Details 4)	6 Months Ended
	Jun. 30, 2015 USD ($) security	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) security
Investments, Debt and Equity Securities [Abstract]
Investment securities held-to-maturity, fair value	$ 59,993,000		$ 500,000
Unrealized losses	$ 523,000		$ 0
Number of securities in an unrealized loss position | security	38		0
Purchases of investment securities held-to-maturity	$ 60,295,000	$ 500,000

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Earnings per Share

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

The following table sets forth a reconciliation of basic and diluted earnings per share (“EPS”) for the periods indicated:

	Three Months Ended
	June 30, 2015				June 30, 2014
	Basic		Fully Diluted		Basic		Fully Diluted
	(In Thousands Except Share Data)
Numerator:
Net income*	$	11,865	$	11,865	$	10,131	$	10,131
Denominator:
Weighted average shares outstanding	70,049,829		70,049,829		69,886,576		69,886,576
Effect of dilutive securities	—		166,021		—		125,801
Adjusted weighted average shares outstanding	70,049,829		70,215,850		69,886,576		70,012,377
EPS*	$	0.17	$	0.17	$	0.15	$	0.14

	Six Months Ended
	June 30, 2015				June 30, 2014
	Basic		Fully Diluted		Basic		Fully Diluted
	(In Thousands Except Share Data)
Numerator:
Net income*	$	23,568	$	23,568	$	20,673	$	20,673
Denominator:
Weighted average shares outstanding	70,042,997		70,042,997		69,881,055		69,881,055
Effect of dilutive securities	—		147,018		—		117,164
Adjusted weighted average shares outstanding	70,042,997		70,190,015		69,881,055		69,998,219
EPS*	$	0.34	$	0.34	$	0.30	$	0.29

(*) Previously reported amounts prior to January 1, 2015 have been restated to reflect a retrospective change in accounting principle for investments in qualified affordable housing projects, in accordance with ASU 2014-01.