Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
ASSETS
Cash and due from banks	$ 32,196	$ 28,753
Short-term investments	32,351	46,736
Total cash and cash equivalents	64,547	75,489
Investment securities available-for-sale	524,295	513,201
Investment securities held-to-maturity (fair value of $78,079 and $93,695)	77,094	93,757
Total investment securities	601,389	606,958
Loans and leases held-for-sale	21,109	13,383
Total loans and leases	5,332,300	4,995,540
Allowance for loan and lease losses	(58,892)	(56,739)
Net loans and leases	5,273,408	4,938,801
Restricted equity securities	65,683	66,117
Premises and equipment, net of accumulated depreciation of $57,032 and $51,722, respectively	75,462	78,156
Deferred tax asset	22,894	26,817
Goodwill	137,890	137,890
Identified intangible assets, net of accumulated amortization of $31,028 and $29,149, respectively	8,754	10,633
Other real estate owned (OREO) and repossessed assets, net	1,152	1,343
Other assets	108,024	86,751
Total assets	6,380,312	6,042,338
Non-interest-bearing deposits:
Demand checking accounts	889,278	799,117
Interest-bearing deposits:
NOW accounts	298,629	283,972
Savings accounts	591,156	540,788
Money market accounts	1,679,797	1,594,269
Certificate of deposit accounts	1,106,046	1,087,872
Total interest-bearing deposits	3,675,628	3,506,901
Total deposits	4,564,906	4,306,018
Borrowed funds:
Advances from the Federal Home Loan Bank of Boston (FHLBB)	900,971	861,866
Subordinated debentures and notes	83,043	82,936
Other borrowed funds	38,639	38,227
Total borrowed funds	1,022,653	983,029
Mortgagors’ escrow accounts	8,166	7,516
Accrued expenses and other liabilities	81,670	72,289
Total liabilities	5,677,395	5,368,852
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	616,142	616,899
Retained earnings, partially restricted	129,740	109,675
Accumulated other comprehensive income/(loss)	4,896	(2,476)
Treasury stock, at cost; 4,734,512 shares and 4,861,554 shares, respectively	(54,151)	(56,208)
Unallocated common stock held by the Employee Stock Ownership Plan (ESOP); 185,787 shares and 213,066 shares, respectively	(1,013)	(1,162)
Total Brookline Bancorp, Inc. stockholders’ equity	696,371	667,485
Noncontrolling interest in subsidiary	6,546	6,001
Total stockholders' equity	702,917	673,486
Total liabilities and stockholders' equity	6,380,312	6,042,338
Commercial real estate loans
ASSETS
Total loans and leases	2,883,428	2,664,394
Allowance for loan and lease losses	(28,056)	(30,151)
Commercial loans and leases
ASSETS
Total loans and leases	1,470,866	1,374,296
Allowance for loan and lease losses	(26,464)	(22,018)
Indirect automobile loans
ASSETS
Total loans and leases	7,607	13,678
Allowance for loan and lease losses	(150)	(269)
Consumer loans
ASSETS
Total loans and leases	970,399	943,172
Allowance for loan and lease losses	$ (4,222)	$ (4,301)