Provident Financial Services (PFS) 10-Q 9 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 01, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Trading Symbol	PFS
Entity Registrant Name	PROVIDENT FINANCIAL SERVICES INC
Entity Central Index Key	1,178,970
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		66,377,471

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
ASSETS
Cash and due from banks	$ 117,348	$ 100,899
Short-term investments	42,326	1,327
Total cash and cash equivalents	159,674	102,226
Securities available for sale, at fair value	1,032,235	964,534
Investment securities held to maturity (fair value of $495,516 at September 30, 2016 (unaudited) and $488,331 at December 31, 2015)	476,359	473,684
Federal Home Loan Bank stock	71,019	78,181
Loans	6,890,586	6,537,674
Less allowance for loan losses	61,088	61,424
Net loans	6,829,498	6,476,250
Foreclosed assets, net	10,087	10,546
Banking premises and equipment, net	85,207	88,987
Accrued interest receivable	25,305	25,766
Intangible assets	423,678	426,277
Bank-owned life insurance	187,140	183,057
Other assets	89,799	82,149
Total assets	9,390,001	8,911,657
Deposits:
Demand deposits	4,784,360	4,198,788
Savings deposits	1,074,708	985,478
Certificates of deposit of $100,000 or more	293,085	324,215
Other time deposits	375,345	415,506
Total deposits	6,527,498	5,923,987
Mortgage escrow deposits	24,285	23,345
Borrowed funds	1,522,368	1,707,632
Other liabilities	71,570	60,628
Total liabilities	8,145,721	7,715,592
Stockholders’ Equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, none issued	0	0
Common stock, $0.01 par value, 200,000,000 shares authorized, 83,209,293 shares issued and 66,028,442 shares outstanding at September 30, 2016 (unaudited) and 65,489,354 outstanding at December 31, 2015	832	832
Additional paid-in capital	1,003,837	1,000,810
Retained earnings	538,429	507,713
Accumulated other comprehensive income (loss)	5,974	(2,546)
Treasury stock	(265,078)	(269,014)
Unallocated common stock held by the Employee Stock Ownership Plan	(39,714)	(41,730)
Common stock acquired by the Directors’ Deferred Fee Plan	(6,014)	(6,517)
Deferred compensation – Directors’ Deferred Fee Plan	6,014	6,517
Total stockholders’ equity	1,244,280	1,196,065
Total liabilities and stockholders’ equity	$ 9,390,001	$ 8,911,657

Consolidated Statements of Fin3

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Investment securities held to maturity, fair value	$ 495,516	$ 488,331
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	83,209,293	83,209,293
Common stock, shares outstanding (in shares)	66,028,442	65,489,354

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income:
Real estate secured loans	$ 45,262	$ 44,541	$ 134,411	$ 131,424
Commercial loans	16,093	13,767	46,419	40,875
Consumer loans	5,627	5,646	16,657	17,234
Securities available for sale and Federal Home Loan Bank Stock	5,576	5,672	17,074	17,708
Investment securities held to maturity	3,349	3,368	10,011	10,150
Deposits, Federal funds sold and other short-term investments	138	19	252	41
Total interest income	76,045	73,013	224,824	217,432
Interest expense:
Deposits	4,441	3,639	12,397	10,851
Borrowed funds	6,633	6,827	20,477	20,432
Total interest expense	11,074	10,466	32,874	31,283
Net interest income	64,971	62,547	191,950	186,149
Provision for loan losses	1,000	1,400	4,200	3,100
Net interest income after provision for loan losses	63,971	61,147	187,750	183,049
Non-interest income:
Fees	6,137	6,230	19,309	19,465
Wealth management income	4,262	4,750	13,084	12,405
Bank-owned life insurance	1,382	1,248	4,083	3,913
Net (loss) gain on securities transactions	(43)	5	54	650
Other income (expense)	2,328	(123)	4,378	2,922
Total non-interest income	14,066	12,110	40,908	39,355
Non-interest expense:
Compensation and employee benefits	26,725	24,784	78,496	73,399
Net occupancy expense	6,227	6,186	18,729	19,935
Data processing expense	3,328	3,239	9,845	9,425
FDIC insurance	1,117	1,273	3,732	3,763
Amortization of intangibles	767	1,012	2,628	3,063
Advertising and promotion expense	787	598	2,567	2,740
Other operating expenses	6,899	6,522	20,628	20,845
Total non-interest expense	45,850	43,614	136,625	133,170
Income before income tax expense	32,187	29,643	92,033	89,234
Income tax expense	9,281	9,034	26,798	27,027
Net income	$ 22,906	$ 20,609	$ 65,235	$ 62,207
Basic earnings per share (usd per share)	$ 0.36	$ 0.33	$ 1.03	$ 0.99
Weighted average basic shares outstanding (in shares)	63,728,393	63,034,185	63,545,065	62,868,745
Diluted earnings per share (usd per share)	$ 0.36	$ 0.33	$ 1.02	$ 0.99
Weighted average diluted shares outstanding (in shares)	63,934,886	63,198,299	63,727,723	63,029,389

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 22,906	$ 20,609	$ 65,235	$ 62,207
Unrealized gains and losses on securities available for sale:
Net unrealized (losses) gains arising during the period	(1,541)	3,678	8,533	2,460
Reclassification adjustment for losses (gains) included in net income	26	0	(32)	(386)
Total	(1,515)	3,678	8,501	2,074
Unrealized gains (losses) on derivatives	230	(232)	(361)	(232)
Amortization related to post-retirement obligations	141	115	380	227
Total other comprehensive (loss) income	(1,144)	3,561	8,520	2,069
Total comprehensive income	$ 21,762	$ 24,170	$ 73,755	$ 64,276

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Unallocated ESOP Shares [Member]	Common Stock Acquired By Directors Deferred Fee Plan [Member]	Deferred Compensation DDFP [Member]
Beginning balance at Dec. 31, 2014	$ 1,144,099	$ 832	$ 995,053	$ 465,276	$ 29	$ (271,779)	$ (45,312)	$ (7,113)	$ 7,113
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	62,207			62,207
Other comprehensive loss, net of tax	2,069				2,069
Cash dividends declared	(31,810)			(31,810)
Distributions from DDFP	49		49					405	(405)
Purchases of treasury stock	0					0
Purchase of employee restricted shares to fund statutory tax withholding	(1,946)					(1,946)
Shares issued dividend reinvestment plan	1,069		75			994
Stock option exercises	2,054		(175)			2,229
Allocation of ESOP shares	2,119		171				1,948
Allocation of SAP shares	3,863		3,863
Allocation of stock options	200		200
Ending Balance at Sep. 30, 2015	1,183,973	832	999,236	495,673	2,098	(270,502)	(43,364)	(6,708)	6,708
Beginning balance at Jun. 30, 2015					(1,463)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,609
Other comprehensive loss, net of tax	3,561				3,561
Ending Balance at Sep. 30, 2015	1,183,973	832	999,236	495,673	2,098	(270,502)	(43,364)	(6,708)	6,708
Beginning balance at Dec. 31, 2015	1,196,065	832	1,000,810	507,713	(2,546)	(269,014)	(41,730)	(6,517)	6,517
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	65,235
Other comprehensive loss, net of tax	8,520				8,520
Cash dividends declared	(35,141)			(35,141)
Effect of adopting Accounting Standards Update (ASU) No. 2016-09	0		(622)	622
Distributions from DDFP	91		91					503	(503)
Purchases of treasury stock	(1,557)					(1,557)
Purchase of employee restricted shares to fund statutory tax withholding	(1,161)					(1,161)
Shares issued dividend reinvestment plan	1,176		180			996
Stock option exercises	5,598		(60)			5,658
Allocation of ESOP shares	2,341		325				2,016
Allocation of SAP shares	2,982		2,982
Allocation of stock options	131		131
Ending Balance at Sep. 30, 2016	1,244,280	832	1,003,837	538,429	5,974	(265,078)	(39,714)	(6,014)	6,014
Beginning balance at Jun. 30, 2016					7,118
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	22,906
Other comprehensive loss, net of tax	(1,144)				(1,144)
Ending Balance at Sep. 30, 2016	$ 1,244,280	$ 832	$ 1,003,837	$ 538,429	$ 5,974	$ (265,078)	$ (39,714)	$ (6,014)	$ 6,014

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 65,235	$ 62,207
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles	9,711	10,311
Provision for loan losses	4,200	3,100
Deferred tax expense	323	604
Increase in cash surrender value of Bank-owned life insurance	(4,083)	(3,913)
Net amortization of premiums and discounts on securities	7,908	8,154
Accretion of net deferred loan fees	(2,500)	(2,752)
Amortization of premiums on purchased loans, net	936	821
Net increase in loans originated for sale	(32,734)	(6,987)
Proceeds from sales of loans originated for sale	34,709	7,533
Proceeds from sales of foreclosed assets	3,717	2,897
ESOP expense	2,341	2,119
Allocation of stock award shares	2,982	3,495
Allocation of stock options	131	200
Excess tax benefits related to stock-based compensation	158	0
Net gain on sale of loans	(1,975)	(546)
Net gain on securities transactions	(54)	(650)
Net gain on sale of premises and equipment	(14)	(4)
Net gain on sale of foreclosed assets	(652)	(196)
Decrease in accrued interest receivable	461	994
Increase in other assets	(17,266)	(10,466)
Increase in other liabilities	10,942	8,999
Net cash provided by operating activities	84,476	85,920
Cash flows from investing activities:
Proceeds from maturities, calls and paydowns of investment securities held to maturity	49,245	27,208
Purchases of investment securities held to maturity	(54,059)	(31,515)
Proceeds from sales of securities	3,401	14,005
Proceeds from maturities, calls and paydowns of securities available for sale	146,958	165,609
Purchases of securities available for sale	(209,666)	(101,922)
Net decrease (increase) in Federal Home Loan Bank stock	7,162	(9,185)
Net cash and cash equivalents paid in acquisition	0	(25,613)
Death benefit proceeds from bank-owned life insurance	0	776
Purchases of loans	(28,590)	(76,486)
Net increase in loans	(325,838)	(275,164)
Proceeds from sales of premises and equipment	14	19
Purchases of premises and equipment	(3,757)	(4,686)
Net cash used in investing activities	(415,130)	(316,954)
Cash flows from financing activities:
Net increase in deposits	603,511	33,090
Increase in mortgage escrow deposits	940	2,471
Cash dividends paid to stockholders	(35,141)	(31,810)
Shares issued through the dividend reinvestment plan	1,176	1,069
Purchases of treasury stock	(1,557)	0
Purchase of employee restricted shares to fund statutory tax withholding	(1,161)	(1,946)
Stock options exercised	5,598	2,054
Proceeds from long-term borrowings	291,653	459,937
Payments on long-term borrowings	(395,405)	(322,907)
Net (decrease) increase in short-term borrowings	(81,512)	113,747
Net cash provided by financing activities	388,102	255,705
Net increase in cash and cash equivalents	57,448	24,671
Cash and cash equivalents at beginning of period	102,226	103,762
Cash and cash equivalents at end of period	159,674	128,433
Cash paid during the period for:
Interest on deposits and borrowings	33,088	31,146
Income taxes	25,546	30,189
Non-cash investing activities:
Transfer of loans receivable to foreclosed assets	3,081	8,143
Goodwill and other intangible assets, net	0	27,087
Other assets	0	112
Total non-cash assets acquired	0	27,199
Other Liabilities	0	366
Total liabilities assumed	$ 0	$ 366

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies A. Basis of Financial Statement Presentation The accompanying unaudited consolidated financial statements include the accounts of Provident Financial Services, Inc. and its wholly owned subsidiary, Provident Bank (the “Bank,” together with Provident Financial Services, Inc., the “Company”). In preparing the interim unaudited consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated statements of financial condition and the consolidated statements of income for the periods presented. Actual results could differ from these estimates. The allowance for loan losses, the valuation of securities available for sale and the valuation of deferred tax assets are material estimates that are particularly susceptible to near-term change. The interim unaudited consolidated financial statements reflect all normal and recurring adjustments, which are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. The results of operations for the three and nine months ended September 30, 2016 are not necessarily indicative of the results of operations that may be expected for all of 2016 . Certain information and note disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited consolidated financial statements should be read in conjunction with the December 31, 2015 Annual Report to Stockholders on Form 10-K. B. Earnings Per Share The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share calculations for the three and nine months ended September 30, 2016 and 2015 (dollars in thousands, except per share amounts): Three months ended September 30, 2016 2015 Net Income Weighted Average Common Shares Outstanding Per Share Amount Net Income Weighted Average Common Shares Outstanding Per Share Amount Net income $ 22,906 $ 20,609 Basic earnings per share: Income available to common stockholders $ 22,906 63,728,393 $ 0.36 $ 20,609 63,034,185 $ 0.33 Dilutive shares 206,493 164,114 Diluted earnings per share: Income available to common stockholders $ 22,906 63,934,886 $ 0.36 $ 20,609 63,198,299 $ 0.33 Nine months ended September 30, 2016 2015 Net Income Weighted Average Common Shares Outstanding Per Share Amount Net Income Weighted Average Common Shares Outstanding Per Share Amount Net income $ 65,235 $ 62,207 Basic earnings per share: Income available to common stockholders $ 65,235 63,545,065 $ 1.03 $ 62,207 62,868,745 $ 0.99 Dilutive shares 182,658 160,644 Diluted earnings per share: Income available to common stockholders $ 65,235 63,727,723 $ 1.02 $ 62,207 63,029,389 $ 0.99 Anti-dilutive stock options and awards at September 30, 2016 and 2015 , totaling 528,205 shares and 518,433 shares, respectively, were excluded from the earnings per share calculations.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2016
Business Combinations [Abstract]
Business Combinations	Business Combinations On April 1, 2015, Beacon Trust Company ("Beacon"), a wholly owned subsidiary of Provident Bank, completed its acquisition of certain assets and liabilities of The MDE Group, Inc. and the equity interests of Acertus Capital Management, LLC (together "MDE"), both Morristown, New Jersey-based registered investment advisory firms that manage assets for affluent and high net-worth clients. MDE was acquired with both cash and contingent consideration. The Company recognized goodwill of $18.3 million and a customer relationship intangible of $7.0 million related to the MDE acquisition. The Company recognized a contingent consideration liability at its fair value of $338,000 . The contingent consideration arrangement requires the Company to pay additional cash consideration to MDE’s former stakeholders four years after the closing of the acquisition if certain revenue targets are met. The fair value of the contingent consideration was estimated using a discounted cash flow model. The acquisition agreement limits the total payment to a maximum of $12.5 million , to be determined based on actual future results. In accordance with the acquisition agreement and based upon the Company's projection of future revenue, no contingent consideration liability was required at September 30, 2016 .

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities At September 30, 2016 , the Company had $ 1.03 billion and $476.4 million in available for sale and held to maturity investment securities, respectively. Many factors, including lack of liquidity in the secondary market for certain securities, variations in pricing information, regulatory actions, changes in the business environment or any changes in the competitive marketplace could have an adverse effect on the Company’s investment portfolio which could result in other-than-temporary impairment ("OTTI") on certain investment securities in future periods. The total number of held to maturity and available for sale securities in an unrealized loss position as of September 30, 2016 totaled 76 , compared with 163 at December 31, 2015 . All securities with unrealized losses at September 30, 2016 were analyzed for other-than-temporary impairment. Based upon this analysis, the Company believes that as of September 30, 2016 , such securities with unrealized losses do not represent impairments that are other-than-temporary. Securities Available for Sale The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the fair value for securities available for sale at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Amortized Gross Gross Fair US Treasury obligations $ 7,998 33 — 8,031 Agency obligations 69,169 221 — 69,390 Mortgage-backed securities 915,693 20,275 (187 ) 935,781 State and municipal obligations 4,162 191 — 4,353 Corporate obligations 14,014 127 (9 ) 14,132 Equity securities 397 151 — 548 $ 1,011,433 20,998 (196 ) 1,032,235 December 31, 2015 Amortized Gross Gross Fair US Treasury obligations $ 8,006 — (2 ) 8,004 Agency obligations 82,396 82 (148 ) 82,330 Mortgage-backed securities 857,430 9,828 (3,397 ) 863,861 State and municipal obligations 4,193 115 — 4,308 Corporate obligations 5,516 6 (10 ) 5,512 Equity securities 397 122 — 519 $ 957,938 10,153 (3,557 ) 964,534 The amortized cost and fair value of securities available for sale at September 30, 2016 , by contractual maturity, are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. September 30, 2016 Amortized cost Fair value Due in one year or less $ 43,489 43,565 Due after one year through five years 35,924 36,103 Due after five years through ten years 15,930 16,238 Due after ten years — — $ 95,343 95,906 Mortgage-backed securities totaling $915.7 million at amortized cost and $935.8 million at fair value are excluded from the table above as their expected lives are likely to be shorter than the contractual maturity date due to principal prepayments. Also excluded from the table above are equity securities of $397,000 at amortized cost and $548,000 at fair value. For the three months ended September 30, 2016 , proceeds from sales on securities available for sale totaled $1.2 million resulting in no gross gains and $45,000 of gross losses. No securities were sold from the available for sale portfolio during the three months ended September 30, 2015 . For the nine months ended September 30, 2016 , proceeds from the sale of securities available for sale were $3.4 million , resulting in gross gains of $95,000 and gross losses of $45,000 . For the same period last year, proceeds from the sale of securities available for sale were $14.0 million , resulting in gross gains of $643,000 and no gross losses. For the nine months ended September 30, 2016 , there were no calls of securities in the available for sale portfolio. For the same period last year, proceeds from calls on securities available for sale totaled $465,000 , resulting in gross gains of $2,000 and no gross losses. The Company did not incur an OTTI charge on securities in the available for sale portfolio for the three and nine months ended September 30, 2016 and 2015 . The following tables represent the Company’s disclosure regarding securities available for sale with temporary impairment at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Mortgage-backed securities $ 61,786 (181 ) 398 (6 ) 62,184 (187 ) Corporate obligations — — 992 (9 ) 992 (9 ) $ 61,786 (181 ) 1,390 (15 ) 63,176 (196 ) December 31, 2015 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses U.S. Treasury obligations $ 8,004 (2 ) — — 8,004 (2 ) Agency obligations 59,197 (148 ) — — 59,197 (148 ) Mortgage-backed securities 327,263 (2,427 ) 47,911 (970 ) 375,174 (3,397 ) Corporate obligations 500 — 992 (10 ) 1,492 (10 ) $ 394,964 (2,577 ) 48,903 (980 ) 443,867 (3,557 ) The temporary loss position associated with certain securities available for sale was the result of changes in market interest rates relative to the coupon of the individual security and changes in credit spreads. The Company does not have the intent to sell securities in a temporary loss position at September 30, 2016 , nor is it more likely than not that the Company will be required to sell the securities before their prices recover. The number of available for sale securities in an unrealized loss position at September 30, 2016 totaled 16 , compared with 64 at December 31, 2015 . At September 30, 2016 , there were three private label mortgage-backed securities in an unrealized loss position, with an amortized cost of $523,000 and an unrealized loss of $6,000 . None of these private label mortgage-backed securities were below investment grade at September 30, 2016 . The Company estimates the loss projections for each security by stressing the individual loans collateralizing the security and applying a range of expected default rates, loss severities, and prepayment speeds in conjunction with the underlying credit enhancement for each security. Based on specific assumptions about collateral and vintage, a range of possible cash flows was identified to determine whether OTTI existed during the nine months ended September 30, 2016 . The Company believes that no OTTI of the securities available for sale portfolio existed for the three and nine months ended September 30, 2016 . Investment Securities Held to Maturity The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the estimated fair value for investment securities held to maturity at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Amortized cost Gross unrealized gains Gross unrealized losses Fair value Agency obligations $ 2,688 3 (3 ) 2,688 Mortgage-backed securities 1,037 42 — 1,079 State and municipal obligations 462,603 19,411 (320 ) 481,694 Corporate obligations 10,031 31 (7 ) 10,055 $ 476,359 19,487 (330 ) 495,516 December 31, 2015 Amortized cost Gross unrealized gains Gross unrealized losses Fair value Agency obligations $ 4,096 9 (8 ) 4,097 Mortgage-backed securities 1,597 61 — 1,658 State and municipal obligations 458,062 15,094 (495 ) 472,661 Corporate obligations 9,929 11 (25 ) 9,915 $ 473,684 15,175 (528 ) 488,331 The Company generally purchases securities for long-term investment purposes, and differences between amortized cost and fair values may fluctuate during the investment period. There were no sales of securities from the held to maturity portfolio for the three and nine months ended September 30, 2016 and 2015 . For the three and nine months ended September 30, 2016 , proceeds from calls on certain securities in the held to maturity portfolio totaled $20.3 million and $35.2 million , respectively, with gross gains recognized of $2,000 and $4,000 , respectively and no gross losses in either period. For the three and nine months ended September 30, 2015 , proceeds from calls of certain securities in the held to maturity portfolio totaled $8.0 million and $21.2 million , respectively, with gross gains totaling $5,000 and no gross losses recognized in either period. The amortized cost and fair value of investment securities in the held to maturity portfolio at September 30, 2016 by contractual maturity are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. September 30, 2016 Amortized cost Fair value Due in one year or less $ 14,256 14,296 Due after one year through five years 50,309 51,462 Due after five years through ten years 238,948 250,709 Due after ten years 171,809 177,970 $ 475,322 494,437 Mortgage-backed securities totaling $1.0 million at amortized cost and $1.1 million at fair value are excluded from the table above as their expected lives are likely to be shorter than the contractual maturity date due to principal prepayments. The following tables represent the Company’s disclosure on investment securities held to maturity with temporary impairment at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Agency obligations $ 1,697 (3 ) — — 1,697 (3 ) State and municipal obligations 19,572 (165 ) 6,815 (155 ) 26,387 (320 ) Corporate obligations 3,452 (7 ) — — 3,452 (7 ) $ 24,721 (175 ) 6,815 (155 ) 31,536 (330 ) December 31, 2015 Unrealized Losses Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Agency obligations $ 1,244 (6 ) 278 (2 ) 1,522 (8 ) State and municipal obligations 24,266 (165 ) 17,746 (330 ) 42,012 (495 ) Corporate obligations 5,840 (18 ) 744 (7 ) 6,584 (25 ) $ 31,350 (189 ) 18,768 (339 ) 50,118 (528 ) Based upon the review of the held to maturity securities portfolio, the Company believes that as of September 30, 2016 , securities with unrealized loss positions shown above do not represent impairments that are other-than-temporary. The review of the portfolio for OTTI considers the percentage and length of time the fair value of an investment is below book value, as well as general market conditions, changes in interest rates, credit risks, whether the Company has the intent to sell the securities and whether it is more likely than not that the Company would be required to sell the securities before their prices recover. The number of held to maturity securities in an unrealized loss position at September 30, 2016 totaled 60 , compared with 99 at December 31, 2015 . The decrease in the number of securities in an unrealized loss position at September 30, 2016 , was largely due to a decrease in market interest rates from December 31, 2015 . All temporarily impaired investment securities were investment grade at September 30, 2016 .

Loans Receivable and Allowance

Loans Receivable and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2016
Receivables [Abstract]
Loans Receivable and Allowance for Loan Losses	Loans Receivable and Allowance for Loan Losses Loans receivable at September 30, 2016 and December 31, 2015 are summarized as follows (in thousands): September 30, 2016 December 31, 2015 Mortgage loans: Residential $ 1,213,507 1,254,036 Commercial 1,884,155 1,714,923 Multi-family 1,384,428 1,233,792 Construction 316,803 331,649 Total mortgage loans 4,798,893 4,534,400 Commercial loans 1,553,606 1,433,447 Consumer loans 538,061 566,175 Total gross loans 6,890,560 6,534,022 Purchased credit-impaired ("PCI") loans 1,691 3,435 Premiums on purchased loans 5,330 5,740 Unearned discounts (39 ) (41 ) Net deferred fees (6,956 ) (5,482 ) Total loans $ 6,890,586 6,537,674 The following tables summarize the aging of loans receivable by portfolio segment and class of loans, excluding PCI loans (in thousands): September 30, 2016 30-59 Days 60-89 Days Non-accrual Recorded Total Past Due Current Total Loans Receivable Mortgage loans: Residential $ 7,147 7,579 11,317 — 26,043 1,187,464 1,213,507 Commercial 1,574 — 5,679 — 7,253 1,876,902 1,884,155 Multi-family — — 1,113 — 1,113 1,383,315 1,384,428 Construction — — 2,692 — 2,692 314,111 316,803 Total mortgage loans 8,721 7,579 20,801 — 37,101 4,761,792 4,798,893 Commercial loans 1,754 297 16,436 — 18,487 1,535,119 1,553,606 Consumer loans 2,388 1,000 2,779 — 6,167 531,894 538,061 Total gross loans $ 12,863 8,876 40,016 — 61,755 6,828,805 6,890,560 December 31, 2015 30-59 Days 60-89 Days Non-accrual Recorded Total Past Current Total Loans Receivable Mortgage loans: Residential $ 8,983 5,434 12,031 — 26,448 1,227,588 1,254,036 Commercial 1,732 543 1,263 — 3,538 1,711,385 1,714,923 Multi-family 763 506 742 — 2,011 1,231,781 1,233,792 Construction — — 2,351 — 2,351 329,298 331,649 Total mortgage loans 11,478 6,483 16,387 — 34,348 4,500,052 4,534,400 Commercial loans 632 801 23,875 165 25,473 1,407,974 1,433,447 Consumer loans 3,603 1,194 4,109 — 8,906 557,269 566,175 Total gross loans $ 15,713 8,478 44,371 165 68,727 6,465,295 6,534,022 Included in loans receivable are loans for which the accrual of interest income has been discontinued due to deterioration in the financial condition of the borrowers. The principal amounts of these non-accrual loans were $40.0 million and $44.4 million at September 30, 2016 and December 31, 2015 , respectively. Included in non-accrual loans were $5.4 million and $18.3 million of loans which were less than 90 days past due at September 30, 2016 and December 31, 2015 , respectively. There were no loans 90 days or greater past due and still accruing interest at September 30, 2016 . At December 31, 2015 , there was one commercial loan for $165,000 which was ninety days or greater past due and still accruing interest. This loan was past due for maturity and well secured at December 31, 2015 , and subsequent to the end of the year was renewed by the Company. The Company defines an impaired loan as a non-homogeneous loan greater than $1.0 million for which it is probable, based on current information, all amounts due under the contractual terms of the loan agreement will not be collected. Impaired loans also include all loans modified as troubled debt restructurings (“TDRs”). A loan is deemed to be a TDR when a loan modification resulting in a concession is made in an effort to mitigate potential loss arising from a borrower’s financial difficulty. Smaller balance homogeneous loans, including residential mortgages and other consumer loans, are evaluated collectively for impairment and are excluded from the definition of impaired loans, unless modified as TDRs. The Company separately calculates the reserve for loan losses on impaired loans. The Company may recognize impairment of a loan based upon: (1) the present value of expected cash flows discounted at the effective interest rate; (2) if a loan is collateral dependent, the fair value of collateral; or (3) the fair value of the loan. Additionally, if impaired loans have risk characteristics in common, those loans may be aggregated and historical statistics may be used as a means of measuring those impaired loans. The Company uses third-party appraisals to determine the fair value of the underlying collateral in its analyses of collateral dependent impaired loans. A third-party appraisal is generally ordered as soon as a loan is designated as a collateral dependent impaired loan and is updated annually or more frequently, if required. A specific allocation of the allowance for loan losses is established for each collateral dependent impaired loan with a carrying balance greater than the collateral’s fair value, less estimated costs to sell. Charge-offs are generally taken for the amount of the specific allocation when operations associated with the respective property cease and it is determined that collection of amounts due will be derived primarily from the disposition of the collateral. At each quarter end, if a loan is designated as a collateral dependent impaired loan and the third party appraisal has not yet been received, an evaluation of all available collateral is made using the best information available at the time, including rent rolls, borrower financial statements and tax returns, prior appraisals, management’s knowledge of the market and collateral, and internally prepared collateral valuations based upon market assumptions regarding vacancy and capitalization rates, each as and where applicable. Once the appraisal is received and reviewed, the specific reserves are adjusted to reflect the appraised value. The Company believes there have been no significant time lapses as a result of this process. At September 30, 2016 , there were 139 impaired loans totaling $44.4 million . Included in this total were 115 TDRs related to 114 borrowers totaling $21.1 million that were performing in accordance with their restructured terms and which continued to accrue interest at September 30, 2016 . At December 31, 2015 , there were 148 impaired loans totaling $50.9 million . Included in this total were 122 TDRs to 120 borrowers totaling $26.0 million that were performing in accordance with their restructured terms and which continued to accrue interest at December 31, 2015 . The following table summarizes loans receivable by portfolio segment and impairment method, excluding PCI loans (in thousands): September 30, 2016 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 28,694 13,472 2,249 44,415 Collectively evaluated for impairment 4,770,199 1,540,134 535,812 6,846,145 Total gross loans $ 4,798,893 1,553,606 538,061 6,890,560 December 31, 2015 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 26,743 21,756 2,368 50,867 Collectively evaluated for impairment 4,507,657 1,411,691 563,807 6,483,155 Total gross loans $ 4,534,400 1,433,447 566,175 6,534,022 The allowance for loan losses is summarized by portfolio segment and impairment classification as follows (in thousands): September 30, 2016 Mortgage loans Commercial loans Consumer loans Total Individually evaluated for impairment $ 1,963 81 83 2,127 Collectively evaluated for impairment 27,691 28,158 3,112 58,961 Total gross loans $ 29,654 28,239 3,195 61,088 December 31, 2015 Mortgage loans Commercial loans Consumer loans Total Individually evaluated for impairment $ 2,086 91 94 2,271 Collectively evaluated for impairment 30,008 25,738 3,407 59,153 Total gross loans $ 32,094 25,829 3,501 61,424 Loan modifications to borrowers experiencing financial difficulties that are considered TDRs primarily involve lowering the monthly payments on such loans through either a reduction in interest rate below a market rate, an extension of the term of the loan without a corresponding adjustment to the risk premium reflected in the interest rate, or a combination of these two methods. These modifications generally do not result in the forgiveness of principal or accrued interest. In addition, the Company attempts to obtain additional collateral or guarantor support when modifying such loans. If the borrower has demonstrated performance under the previous terms and our underwriting process shows the borrower has the capacity to continue to perform under the restructured terms, the loan will continue to accrue interest. Non-accruing restructured loans may be returned to accrual status when there has been a sustained period of repayment performance (generally six consecutive months of payments) and both principal and interest are deemed collectible. The following tables present the number of loans modified as TDRs during the three and nine months ended September 30, 2016 and 2015 , along with their balances immediately prior to the modification date and post-modification as of September 30, 2016 and 2015 . There were no loans modified as TDRs during the three and nine months ended September 30, 2016 . For the three months ended September 30, 2016 September 30, 2015 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential — $ — $ — 1 $ 258 $ 256 Total mortgage loans — — — 1 258 256 Consumer loans — — — — — — Total restructured loans — $ — $ — 1 $ 258 $ 256 For the nine months ended September 30, 2016 September 30, 2015 Troubled Debt Restructurings Number of Pre-Modification Post-Modification Number of Pre-Modification Post-Modification ($ in thousands) Mortgage loans: Residential — $ — $ — 6 $ 2,192 $ 2,184 Construction — — — 1 2,600 2,096 Total mortgage loans — — — 7 4,792 4,280 Commercial loans — — — 4 6,659 6,903 Consumer loans — — — 2 123 115 Total restructured loans — $ — $ — 13 $ 11,574 $ 11,298 All TDRs are impaired loans, which are individually evaluated for impairment, as previously discussed. Estimated collateral values of collateral dependent impaired loans modified during the three and nine months ended September 30, 2015 exceeded the carrying amounts of such loans. There were charge-offs recorded on two collateral dependent impaired loans of $312,000 for the three and nine months ended September 30, 2015 , which are included in the preceding tables. For the three and nine months ended September 30, 2015 , the allowance for loan losses associated with the TDRs presented in the preceding tables totaled $0 and $82,000 , respectively and were included in the allowance for loan losses for loans individually evaluated for impairment. For the three and nine months ended September 30, 2015 , the TDRs presented in the preceding tables had a weighted average modified interest rate of approximately 3.00% and 5.26% , respectively, compared to a rate of 3.00% and 5.71% prior to modification, respectively. There were no payment defaults (90 days or more past due) for loans modified as TDRs within the 12 month periods ending September 30, 2016 and 2015 . TDRs that subsequently default are considered collateral dependent impaired loans and are evaluated for impairment based on the estimated fair value of the underlying collateral less expected selling costs. PCI loans are loans acquired at a discount primarily due to deteriorated credit quality. As part of the May 30, 2014 acquisition of Team Capital, $5.2 million of the loans acquired were determined to be PCI loans. At the date of acquisition, PCI loans were accounted for at fair value, based upon the then present value of expected future cash flows, with no related allowance for loan losses. PCI loans declined $1.7 million to $1.7 million at September 30, 2016 , from $3.4 million at December 31, 2015 . The decrease from December 31, 2015 , was largely due to the full repayment and greater than projected cash flows on certain PCI loans. This resulted in a $179,000 and a $682,000 increase in interest income for the three and nine months ended September 30, 2016 , respectively, largely due to the acceleration of accretable and non-accretable discounts on these loans. For the three and nine months ended September 30, 2015 , $129,000 and $349,000 , respectively, of accretable and non-accretable discounts were similarly accelerated and recognized in interest income. The following table summarizes the changes in the accretable yield for PCI loans during the three and nine months ended September 30, 2016 and 2015 (in thousands): Three months ended September 30, Nine months ended September 30, 2016 2015 2016 2015 Beginning balance $ 328 609 676 695 Accretion (225 ) (220 ) (1,065 ) (683 ) Reclassification from non-accretable discount 209 172 701 549 Ending balance $ 312 561 312 561 The activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2016 and 2015 was as follows (in thousands): Three months ended September 30, Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Unallocated (1) Total 2016 Balance at beginning of period $ 31,634 26,299 3,000 60,933 — 60,933 Provision charged to operations (1,599 ) 2,378 221 1,000 — 1,000 Recoveries of loans previously charged-off 2 68 160 230 — 230 Loans charged-off (383 ) (506 ) (186 ) (1,075 ) — (1,075 ) Balance at end of period $ 29,654 28,239 3,195 61,088 — 61,088 2015 Balance at beginning of period $ 31,824 22,840 4,570 59,234 390 59,624 Provision charged to operations 569 1,604 (411 ) 1,762 (362 ) 1,400 Recoveries of loans previously charged-off 3 762 352 1,117 — 1,117 Loans charged-off (774 ) (130 ) (772 ) (1,676 ) (1 ) (1,677 ) Balance at end of period $ 31,622 25,076 3,739 60,437 27 60,464 Nine months ended September 30, Mortgage Commercial Consumer Total Portfolio Unallocated (1) Total 2016 Balance at beginning of period $ 32,094 25,829 3,501 61,424 — 61,424 Provision charged to operations (2,294 ) 6,647 (153 ) 4,200 — 4,200 Recoveries of loans previously charged-off 575 351 697 1,623 — 1,623 Loans charged-off (721 ) (4,588 ) (850 ) (6,159 ) — (6,159 ) Balance at end of period $ 29,654 28,239 3,195 61,088 — 61,088 2015 Balance at beginning of period $ 31,977 24,381 4,881 61,239 495 61,734 Provision charged to operations 1,924 926 718 3,568 (468 ) 3,100 Recoveries of loans previously charged-off 139 1,636 819 2,594 — 2,594 Loans charged-off (2,418 ) (1,867 ) (2,679 ) (6,964 ) — (6,964 ) Balance at end of period $ 31,622 25,076 3,739 60,437 27 60,464 (1) For the year ended December 31, 2015, the Company enhanced its allowance for loan losses process and allocated the previously unallocated allowance using both qualitative and quantitative factors. The following table presents loans individually evaluated for impairment by class and loan category, excluding PCI loans (in thousands): September 30, 2016 December 31, 2015 Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Loans with no related allowance Mortgage loans: Residential $ 11,574 8,580 — 8,905 340 12,144 8,799 — 9,079 451 Commercial 3,051 2,989 — 3,002 31 — — — — — Multi-family — — — — — — — — — — Construction 2,553 2,517 — 2,513 — 2,358 2,351 — 1,170 16 Total 17,178 14,086 — 14,420 371 14,502 11,150 — 10,249 467 Commercial loans 16,238 13,391 — 13,810 4 23,754 21,144 — 21,875 747 Consumer loans 1,510 1,003 — 1,038 44 1,560 1,082 — 1,121 48 Total impaired loans $ 34,926 28,480 — 29,268 419 39,816 33,376 — 33,245 1,262 Loans with an allowance recorded Mortgage loans: Residential $ 14,190 13,515 1,800 13,759 378 14,997 14,353 1,901 14,500 505 Commercial 1,094 1,093 163 1,102 41 1,240 1,240 185 1,361 63 Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 15,284 14,608 1,963 14,861 419 16,237 15,593 2,086 15,861 568 Commercial loans 81 81 81 81 — 612 612 91 807 52 Consumer loans 1,257 1,246 83 1,266 49 1,297 1,286 94 1,312 67 Total impaired loans $ 16,622 15,935 2,127 16,208 468 18,146 17,491 2,271 17,980 687 Total impaired loans Mortgage loans: Residential $ 25,764 22,095 1,800 22,664 718 27,141 23,152 1,901 23,579 956 Commercial 4,145 4,082 163 4,104 72 1,240 1,240 185 1,361 63 Multi-family — — — — — — — — — — Construction 2,553 2,517 — 2,513 — 2,358 2,351 — 1,170 16 Total 32,462 28,694 1,963 29,281 790 30,739 26,743 2,086 26,110 1,035 Commercial loans 16,319 13,472 81 13,891 4 24,366 21,756 91 22,682 799 Consumer loans 2,767 2,249 83 2,304 93 2,857 2,368 94 2,433 115 Total impaired loans $ 51,548 44,415 2,127 45,476 887 57,962 50,867 2,271 51,225 1,949 Specific allocations of the allowance for loan losses attributable to impaired loans totaled $2.1 million at September 30, 2016 and $2.3 million at December 31, 2015 . At September 30, 2016 and December 31, 2015 , impaired loans for which there was no related allowance for loan losses totaled $28.5 million and $33.4 million , respectively. The average balance of impaired loans for the nine months ended September 30, 2016 was $45.5 million . The Company utilizes an internal nine-point risk rating system to summarize its loan portfolio into categories with similar risk characteristics. Loans deemed to be “acceptable quality” are rated 1 through 4, with a rating of 1 established for loans with minimal risk. Loans that are deemed to be of “questionable quality” are rated 5 (watch) or 6 (special mention). Loans with adverse classifications (substandard, doubtful or loss) are rated 7, 8 or 9, respectively. Commercial mortgage, commercial, multi-family and construction loans are rated individually, and each lending officer is responsible for risk rating loans in their portfolio. These risk ratings are then reviewed by the department manager and/or the Chief Lending Officer and by the Credit Administration Department. The risk ratings are also confirmed through periodic loan review examinations, which are currently performed by an independent third party. Reports by the independent third party are presented directly to the Audit Committee of the Board of Directors. Loans receivable by credit quality risk rating indicator, excluding PCI loans, are as follows (in thousands): At September 30, 2016 Residential Commercial mortgage Multi- family Construction Total mortgages Commercial Consumer Total loans Special mention $ 7,579 21,595 — — 29,174 18,035 1,000 48,209 Substandard 12,549 25,046 1,237 2,517 41,349 34,943 2,728 79,020 Doubtful — — — — — — — — Loss — — — — — — — — Total classified and criticized 20,128 46,641 1,237 2,517 70,523 52,978 3,728 127,229 Pass/Watch 1,193,379 1,837,514 1,383,191 314,286 4,728,370 1,500,628 534,333 6,763,331 Total $ 1,213,507 1,884,155 1,384,428 316,803 4,798,893 1,553,606 538,061 6,890,560 At December 31, 2015 Residential Commercial mortgage Multi- family Construction Total mortgages Commercial Consumer Total loans Special mention $ 5,434 29,363 1,080 — 35,877 76,464 1,194 113,535 Substandard 12,031 19,451 1,248 2,351 35,081 38,654 4,054 77,789 Doubtful — — — — — 8 — 8 Loss — — — — — — — — Total classified and criticized 17,465 48,814 2,328 2,351 70,958 115,126 5,248 191,332 Pass/Watch 1,236,571 1,666,109 1,231,464 329,298 4,463,442 1,318,321 560,927 6,342,690 Total $ 1,254,036 1,714,923 1,233,792 331,649 4,534,400 1,433,447 566,175 6,534,022

Deposits

Deposits	9 Months Ended
	Sep. 30, 2016
Banking and Thrift [Abstract]
Deposits	Deposits Deposits at September 30, 2016 and December 31, 2015 are summarized as follows (in thousands): September 30, 2016 December 31, 2015 Savings $ 1,074,708 985,478 Money market 1,586,397 1,468,352 NOW 1,908,250 1,540,894 Non-interest bearing 1,289,713 1,189,542 Certificates of deposit 668,430 739,721 Total deposits $ 6,527,498 5,923,987

Components of Net Periodic Bene

Components of Net Periodic Benefit Cost	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Components of Net Periodic Benefit Cost	Components of Net Periodic Benefit Cost The Bank has a noncontributory defined benefit pension plan covering its full-time employees who had attained age 21 with at least one year of service as of April 1, 2003. The pension plan was frozen on April 1, 2003. All participants in the Plan are 100% vested. The pension plan’s assets are invested in investment funds and group annuity contracts currently managed by the Principal Financial Group and Allmerica Financial. In addition to pension benefits, certain health care and life insurance benefits are currently made available to certain of the Bank’s retired employees. The costs of such benefits are accrued based on actuarial assumptions from the date of hire to the date the employee is fully eligible to receive the benefits. Effective January 1, 2003, eligibility for retiree health care benefits was frozen as to new entrants and benefits were eliminated for employees with less than ten years of service as of December 31, 2002. Effective January 1, 2007, eligibility for retiree life insurance benefits was frozen as to new entrants and retiree life insurance benefits were eliminated for employees with less than ten years of service as of December 31, 2006. Net periodic benefit (increase) cost for pension benefits and other post-retirement benefits for the three and nine months ended September 30, 2016 and 2015 includes the following components (in thousands): Three months ended September 30, Nine months ended September 30, Pension benefits Other post- retirement benefits Pension benefits Other post- retirement benefits 2016 2015 2016 2015 2016 2015 2016 2015 Service cost $ — — 37 42 $ — — 112 126 Interest cost 312 284 285 280 936 852 854 842 Expected return on plan assets (612 ) (632 ) — — (1,836 ) (1,898 ) — — Amortization of prior service cost — — — — — — — — Amortization of the net loss 236 193 — — 708 581 — — Net periodic benefit (increase) cost $ (64 ) (155 ) 322 322 $ (192 ) (465 ) 966 968 In its consolidated financial statements for the year ended December 31, 2015 , the Company previously disclosed that it does not expect to contribute to the pension plan in 2016 . As of September 30, 2016 , no contributions have been made to the pension plan. The net periodic benefit (increase) cost for pension benefits and other post-retirement benefits for the three and nine months ended September 30, 2016 were calculated using the actual January 1, 2016 pension and other post-retirement benefits valuations.

Impact of Recent Accounting Pro

Impact of Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Impact of Recent Accounting Pronouncements	Impact of Recent Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU”) No. 2016-13, “Measurement of Credit Losses on Financial Instruments.” The main objective of this ASU is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments by a reporting entity at each reporting date. The amendments in this ASU require financial assets measured at amortized cost to be presented at the net amount expected to be collected. The allowance for credit losses would represent a valuation account that would be deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. The income statement would reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The measurement of expected credit losses would be based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. An entity will be required to use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. The amendments in ASU 2016-13 are effective for fiscal years, including interim periods, beginning after December 15, 2019. Early adoption of this ASU is permitted for fiscal years beginning after December 15, 2018. The Company is currently assessing the impact that the guidance will have on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” ASU No. 2016-09 simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, classification on the statement of cash flows, and accounting for forfeitures. The Company adopted ASU No. 2016-09 prospectively, effective for the third quarter of 2016. Upon adoption, the Company recorded an immaterial cumulative-effect adjustment to the opening balance of retained earnings. In addition, ASU No. 2016-09 requires that excess tax benefits and shortfalls be recorded as income tax benefit or expense in the income statement, rather than as equity. This resulted in an immaterial benefit to income tax expense in the third quarter of 2016. Relative to forfeitures, ASU No. 2016-09 allows an entity’s accounting policy election to either continue to estimate the number of awards that are expected to vest, or account for forfeitures when they occur. The Company has elected to account for forfeitures when they occur. The income tax effects of ASU No. 2016-09 on the statement of cash flows are now classified as cash flows from operating activities. The Company elected to apply this cash flow classification guidance prospectively and, therefore, prior periods have not been adjusted. ASU No. 2016-09 also requires the presentation of certain employee withholding taxes as a financing activity on the Consolidated Statement of Cash Flows. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842).” This ASU requires all lessees to recognize a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date. Lessor accounting remains largely unchanged under the new guidance. The guidance is effective for fiscal years beginning after December 15, 2018, including interim reporting periods within that reporting period, with early adoption permitted. A modified retrospective approach must be applied for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company is currently assessing the impact that the guidance will have on the Company's consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Liabilities." This ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. This amendment supersedes the guidance to classify equity securities with readily determinable fair values into different categories, requires equity securities to be measured at fair value with changes in the fair value recognized through net income, and simplifies the impairment assessment of equity investments without readily determinable fair values. The amendment requires public business entities that are required to disclose the fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using the exit price notion. The amendment requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option. The amendment requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. The amendment reduces diversity in current practice by clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment by means of a cumulative-effect adjustment as of the beginning of the fiscal year of adoption, with the exception of the amendment related to equity securities without readily determinable fair values, which should be applied prospectively to equity investments that exist as of the date of adoption. The Company is currently evaluating the impact that the guidance will have on the Company's consolidated financial statements. In September 2015, the FASB issued ASU No. 2015-16, "Business Combinations, Simplifying the Accounting for Measurement - Period Adjustments." The amendments in this update apply to all entities that have reported provisional amounts for items in a business combination for which the accounting is incomplete by the end of the reporting period in which the combination occurs and during the measurement period have an adjustment to provisional amounts recognized. In these cases, the acquirer must record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The amendments in this update are effective for fiscal years beginning after December 15, 2015 including interim periods within those fiscal years. The Company’s adoption of this ASU did not have a material impact on its consolidated financial statements. In June 2014, the FASB issued ASU No. 2014-12, "Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period," which requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. This update is effective for interim and annual periods beginning after December 15, 2015. The amendments can be applied prospectively to all awards granted or modified after the effective date or retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented and to all new or modified awards thereafter. Early adoption is permitted. The adoption of this guidance did not have a significant impact on the Company’s consolidated financial statements. Also in June 2014, the FASB issued ASU No. 2014-11, "Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures" which aligns the accounting for repurchase to maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. This update is effective for the first interim or annual period beginning after December 15, 2014. In addition the disclosure of certain transactions accounted for as a sale is effective for the first interim or annual period beginning on or after December 15, 2014, and the disclosure for transactions accounted for as secured borrowings is required for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. Early adoption was prohibited. The Company's adoption of this ASU did not have an impact on its consolidated financial statements.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The determination of fair values of financial instruments often requires the use of estimates. Where quoted market values in an active market are not readily available, the Company utilizes various valuation techniques to estimate fair value. Fair value is an estimate of the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. However, in many instances fair value estimates may not be substantiated by comparison to independent markets and may not be realized in an immediate sale of the financial instrument. GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of fair value hierarchy are as follows: Level 1: Unadjusted quoted market prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2: Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability; and Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The valuation techniques are based upon the unpaid principal balance only, and exclude any accrued interest or dividends at the measurement date. Interest income and expense and dividend income are recorded within the consolidated statements of income depending on the nature of the instrument using the effective interest method based on acquired discount or premium. Assets and Liabilities Measured at Fair Value on a Recurring Basis The valuation techniques described below were used to measure fair value of financial instruments in the table below on a recurring basis as of September 30, 2016 and December 31, 2015 . Securities Available for Sale For securities available for sale, fair value was estimated using a market approach. The majority of the Company’s securities are fixed income instruments that are not quoted on an exchange, but are traded in active markets. Prices for these instruments are obtained through third party data service providers or dealer market participants with which the Company has historically transacted both purchases and sales of securities. Prices obtained from these sources include market quotations and matrix pricing. Matrix pricing, a Level 2 input, is a mathematical technique used principally to value certain securities to benchmark or comparable securities. The Company evaluates the quality of Level 2 matrix pricing through comparison to similar assets with greater liquidity and evaluation of projected cash flows. As the Company is responsible for the determination of fair value, it performs quarterly analyses on the prices received from the pricing service to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. Additionally, the Company compares changes in the reported market values and returns to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and review of fair value methodology documentation provided by independent pricing services has not historically resulted in adjustment in the prices obtained from the pricing service. The Company also may hold equity securities and debt instruments issued by the U.S. government and U.S. government-sponsored agencies that are traded in active markets with readily accessible quoted market prices that are considered Level 1 inputs. Derivatives The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. The existing interest rate derivatives result from a service provided to certain qualifying borrowers in a loan related transaction and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. As such, all changes in fair value of the Company’s derivatives are recognized directly in earnings. The Company also uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges, and which satisfy hedge accounting requirements, involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. These derivatives were used to hedge the variable cash outflows associated with Federal Home Loan Bank borrowings. The effective portion of changes in the fair value of these derivatives are recorded in accumulated other comprehensive income, and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of these derivatives are recognized directly in earnings. The fair value of the Company's derivatives are determined using discounted cash flow analysis using observable market-based inputs, which are considered Level 2 inputs. Assets Measured at Fair Value on a Non-Recurring Basis The valuation techniques described below were used to estimate fair value of financial instruments measured on a non-recurring basis as of September 30, 2016 and December 31, 2015 . Collateral Dependent Impaired Loans For loans measured for impairment based on the fair value of the underlying collateral, fair value was estimated using a market approach. The Company measures the fair value of collateral underlying impaired loans primarily through obtaining independent appraisals that rely upon quoted market prices for similar assets in active markets. These appraisals include adjustments, on an individual case-by-case basis, to comparable assets based on the appraisers’ market knowledge and experience, as well as adjustments for estimated costs to sell between 6% and 10% . The Company classifies these loans as Level 3 within the fair value hierarchy. Foreclosed Assets Assets acquired through foreclosure or deed in lieu of foreclosure are carried at fair value, less estimated selling costs, which range between 6% and 10% . Fair value is generally based on independent appraisals that rely upon quoted market prices for similar assets in active markets. These appraisals include adjustments, on an individual case basis, to comparable assets based on the appraisers’ market knowledge and experience, and are classified as Level 3. When an asset is acquired, the excess of the loan balance over fair value, less estimated selling costs, is charged to the allowance for loan losses. A reserve for foreclosed assets may be established to provide for possible write-downs and selling costs that occur subsequent to foreclosure. Foreclosed assets are carried net of the related reserve. Operating results from real estate owned, including rental income, operating expenses, and gains and losses realized from the sales of real estate owned, are recorded as incurred. There were no changes to the valuation techniques for fair value measurements as of September 30, 2016 and December 31, 2015 . The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair values as of September 30, 2016 and December 31, 2015 , by level within the fair value hierarchy: Fair Value Measurements at Reporting Date Using: (In thousands) September 30, 2016 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Securities available for sale: US Treasury obligations $ 8,031 8,031 — — Agency obligations 69,390 69,390 — — Mortgage-backed securities 935,781 — 935,781 — State and municipal obligations 4,353 — 4,353 — Corporate obligations 14,132 — 14,132 — Equity securities 548 548 — — Total securities available for sale 1,032,235 77,969 954,266 — Derivative assets 18,641 — 18,641 — $ 1,050,876 77,969 972,907 — Derivative liabilities $ 20,216 — 20,216 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 9,100 — — 9,100 Foreclosed assets 10,087 — — 10,087 $ 19,187 — — 19,187 Fair Value Measurements at Reporting Date Using: (In thousands) December 31, 2015 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Securities available for sale: US Treasury obligations $ 8,004 8,004 — — Agency obligations 82,330 82,330 — — Mortgage-backed securities 863,861 — 863,861 — State and municipal obligations 4,308 — 4,308 — Corporate obligations 5,512 — 5,512 — Equity securities 519 519 — — Total securities available for sale $ 964,534 90,853 873,681 — Derivative assets 6,854 — 6,854 — $ 971,388 90,853 880,535 — Derivative liabilities $ 6,745 — 6,745 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 9,481 — — 9,481 Foreclosed assets 10,546 — — 10,546 $ 20,027 — — 20,027 There were no transfers between Level 1, Level 2 and Level 3 during the three and nine months ended September 30, 2016 . Other Fair Value Disclosures The Company is required to disclose the estimated fair value of financial instruments, both assets and liabilities on and off the balance sheet, for which it is practicable to estimate fair value. The following is a description of valuation methodologies used for those assets and liabilities. Cash and Cash Equivalents For cash and due from banks, federal funds sold and short-term investments, the carrying amount approximates fair value. Investment Securities Held to Maturity For investment securities held to maturity, fair value was estimated using a market approach. The majority of the Company’s securities are fixed income instruments that are not quoted on an exchange, but are traded in active markets. Prices for these instruments are obtained through third party data service providers or dealer market participants with which the Company has historically transacted both purchases and sales of securities. Prices obtained from these sources include market quotations and matrix pricing. Matrix pricing, a Level 2 input, is a mathematical technique used principally to value certain securities to benchmark or comparable securities. The Company evaluates the quality of Level 2 matrix pricing through comparison to similar assets with greater liquidity and evaluation of projected cash flows. As the Company is responsible for the determination of fair value, it performs quarterly analyses on the prices received from the pricing service to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. Additionally, the Company compares changes in the reported market values and returns to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and review of fair value methodology documentation provided by independent pricing services has not historically resulted in adjustment in the prices obtained from the pricing service . The Company also holds debt instruments issued by the U.S. government and U.S. government agencies that are traded in active markets with readily accessible quoted market prices that are considered Level 1 within the fair value hierarchy. Federal Home Loan Bank of New York ("FHLBNY") Stock The carrying value of FHLBNY stock was its cost. The fair value of FHLBNY stock is based on redemption at par value. The Company classifies the estimated fair value as Level 1 within the fair value hierarchy. Loans Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial mortgage, residential mortgage, commercial, construction and consumer. Each loan category is further segmented into fixed and adjustable rate interest terms and into performing and non-performing categories. The fair value of performing loans was estimated using a combination of techniques, including a discounted cash flow model that utilizes a discount rate that reflects the Company’s current pricing for loans with similar characteristics and remaining maturity, adjusted by an amount for estimated credit losses inherent in the portfolio at the balance sheet date. The rates take into account the expected yield curve, as well as an adjustment for prepayment risk, when applicable. The Company classifies the estimated fair value of its loan portfolio as Level 3. The fair value for significant non-performing loans was based on recent external appraisals of collateral securing such loans, adjusted for the timing of anticipated cash flows and estimated selling costs. The Company classifies the estimated fair value of its non-performing loan portfolio as Level 3. Deposits The fair value of deposits with no stated maturity, such as non-interest bearing demand deposits and savings deposits, was equal to the amount payable on demand and classified as Level 1. The estimated fair value of certificates of deposit was based on the discounted value of contractual cash flows. The discount rate was estimated using the Company’s current rates offered for deposits with similar remaining maturities. The Company classifies the estimated fair value of its certificates of deposit portfolio as Level 2. Borrowed Funds The fair value of borrowed funds was estimated by discounting future cash flows using rates available for debt with similar terms and maturities and is classified by the Company as Level 2 within the fair value hierarchy. Commitments to Extend Credit and Letters of Credit The fair value of commitments to extend credit and letters of credit was estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value estimates of commitments to extend credit and letters of credit are deemed immaterial. Limitations Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on- and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets and liabilities that are not considered financial assets or liabilities include goodwill and other intangibles, deferred tax assets and premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates. The following tables present the Company’s financial instruments at their carrying and fair values as of September 30, 2016 and December 31, 2015 . Fair values are presented by level within the fair value hierarchy. Fair Value Measurements at September 30, 2016 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 159,674 159,674 159,674 — — Securities available for sale: US Treasury obligations 8,031 8,031 8,031 — — Agency obligations 69,390 69,390 69,390 — — Mortgage-backed securities 935,781 935,781 — 935,781 — State and municipal obligations 4,353 4,353 — 4,353 — Corporate obligations 14,132 14,132 — 14,132 — Equity securities 548 548 548 — — Total securities available for sale $ 1,032,235 1,032,235 77,969 954,266 — Investment securities held to maturity: Agency obligations 2,688 2,688 2,688 — — Mortgage-backed securities 1,037 1,079 — 1,079 — State and municipal obligations 462,603 481,694 — 481,694 — Corporate obligations 10,031 10,055 — 10,055 — Total securities held to maturity $ 476,359 495,516 2,688 492,828 — FHLBNY stock 71,019 71,019 71,019 — — Loans, net of allowance for loan losses 6,829,498 6,924,746 — — 6,924,746 Derivative assets 18,641 18,641 — 18,641 — Financial liabilities: Deposits other than certificates of deposits $ 5,859,068 5,859,068 5,859,068 — — Certificates of deposit 668,430 670,146 — 670,146 — Total deposits $ 6,527,498 6,529,214 5,859,068 670,146 — Borrowings 1,522,368 1,540,977 — 1,540,977 — Derivative liabilities 20,216 20,216 — 20,216 — Fair Value Measurements at December 31, 2015 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 102,226 102,226 102,226 — — Securities available for sale: US Treasury obligations 8,004 8,004 8,004 — — Agency obligations 82,330 82,330 82,330 — — Mortgage-backed securities 863,861 863,861 — 863,861 — State and municipal obligations 4,308 4,308 — 4,308 — Corporate obligations 5,512 5,512 — 5,512 — Equity securities 519 519 519 — — Total securities available for sale $ 964,534 964,534 90,853 873,681 — Investment securities held to maturity: Agency obligations $ 4,096 4,097 4,097 — — Mortgage-backed securities 1,597 1,658 — 1,658 — State and municipal obligations 458,062 472,661 — 472,661 — Corporate obligations 9,929 9,915 — 9,915 — Total securities held to maturity $ 473,684 488,331 4,097 484,234 — FHLBNY stock 78,181 78,181 78,181 — — Loans, net of allowance for loan losses 6,476,250 6,509,502 — — 6,509,502 Derivative assets 6,854 6,854 — 6,854 — Financial liabilities: Deposits other than certificates of deposits $ 5,184,266 5,184,266 5,184,266 — — Certificates of deposit 739,721 742,020 — 742,020 — Total deposits $ 5,923,987 5,926,286 5,184,266 742,020 — Borrowings 1,707,632 1,726,726 — 1,726,726 — Derivative liabilities 6,745 6,745 — 6,745 —

Other Comprehensive Income

Other Comprehensive Income	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Other Comprehensive Income	Other Comprehensive Income The following table presents the components of other comprehensive (loss) income both gross and net of tax, for the three and nine months ended September 30, 2016 and 2015 (in thousands): Three months ended September 30, 2016 2015 Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax Components of Other Comprehensive Income: Unrealized gains and losses on securities available for sale: Net (losses) gains arising during the period $ (2,575 ) 1,034 (1,541 ) 6,146 (2,468 ) 3,678 Reclassification adjustment for losses included in net income 43 (17 ) 26 — — — Total (2,532 ) 1,017 (1,515 ) 6,146 (2,468 ) 3,678 Unrealized gains (losses) on derivatives (cash flow hedges) 384 (154 ) 230 (388 ) 156 (232 ) Amortization related to post-retirement obligations 236 (95 ) 141 193 (78 ) 115 Total other comprehensive (loss) income $ (1,912 ) 768 (1,144 ) 5,951 (2,390 ) 3,561 Nine months ended September 30, 2016 2015 Before Tax After Before Tax After Components of Other Comprehensive Income: Unrealized gains and losses on securities available for sale: Net gains arising during the period $ 14,260 (5,727 ) 8,533 4,111 (1,651 ) 2,460 Reclassification adjustment for gains included in net income (54 ) 22 (32 ) (645 ) 259 (386 ) Total 14,206 (5,705 ) 8,501 3,466 (1,392 ) 2,074 Unrealized losses on derivatives (cash flow hedges) (603 ) 242 (361 ) (388 ) 156 (232 ) Amortization related to post-retirement obligations 635 (255 ) 380 379 (152 ) 227 Total other comprehensive income $ 14,238 (5,718 ) 8,520 3,457 (1,388 ) 2,069 The following tables present the changes in the components of accumulated other comprehensive income, net of tax, for the three and nine months ended September 30, 2016 and 2015 (in thousands): Changes in Accumulated Other Comprehensive Income by Component, net of tax for the three months ended September 30, 2016 2015 Unrealized Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Unrealized for Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Balance at $ 13,967 (6,185 ) (664 ) 7,118 6,139 (7,602 ) — (1,463 ) Current period other comprehensive (loss) income (1,515 ) 141 230 (1,144 ) 3,678 115 (232 ) 3,561 Balance at September 30, $ 12,452 (6,044 ) (434 ) 5,974 9,817 (7,487 ) (232 ) 2,098 Changes in Accumulated Other Comprehensive Income by Component, net of tax for the nine months ended September 30, 2016 2015 Unrealized Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Unrealized for Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Balance at December 31, $ 3,951 (6,424 ) (73 ) (2,546 ) 7,743 (7,714 ) — 29 Current period other comprehensive income (loss) 8,501 380 (361 ) 8,520 2,074 227 (232 ) 2,069 Balance at September 30, $ 12,452 (6,044 ) (434 ) 5,974 9,817 (7,487 ) (232 ) 2,098 The following tables summarize the reclassifications out of accumulated other comprehensive income to the consolidated statements of income for the three and nine months ended September 30, 2016 and 2015 (in thousands): Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the three months ended September 30, Affected line item in the Consolidated 2016 2015 Details of AOCI: Securities available for sale: Realized net losses on the sale of securities available for sale $ (43 ) — Net gain on securities transactions 17 — Income tax expense (26 ) — Net of tax Post-retirement obligations: Amortization of actuarial losses 236 193 Compensation and employee benefits (1) (95 ) (78 ) Income tax expense 141 115 Net of tax Total reclassifications $ 115 115 Net of tax Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the nine months ended September 30, Affected line item in the Consolidated 2016 2015 Details of AOCI: Securities available for sale: Realized net gains on the sale of securities available for sale $ 54 645 Net gain on securities transactions (22 ) (259 ) Income tax expense 32 386 Net of tax Post-retirement obligations: Amortization of actuarial losses 708 581 Compensation and employee benefits (1) (284 ) (233 ) Income tax expense 424 348 Net of tax Total reclassifications $ 456 734 Net of tax (1) This item is included in the computation of net periodic benefit cost. See Note 6. Components of Net Periodic Benefit Cost.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative and Hedging Activities	Derivative and Hedging Activities The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities. Non-designated Hedges. Derivatives not designated in qualifying hedging relationships are not speculative and result from a service the Company provides to certain qualifying commercial borrowers in loan related transactions and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. The interest rate swap agreement which the Company executes with the commercial borrower is collateralized by the borrower's property financed by the Company. As the interest rate swaps associated with this program do not meet the hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. At September 30, 2016 and December 31, 2015 , the Company had 34 interest rate swaps with an aggregate notional amount of $549.5 million and 23 interest rate swaps with an aggregate notional amount of $391.4 million , respectively, related to this program. The Company has credit derivatives resulting from participations in interest rate swaps provided to external lenders as part of loan participation arrangements, therefore, are not used to manage interest rate risk in the Company's assets or liabilities. Cash Flow Hedges of Interest Rate Risk. The Company’s objective in using interest rate derivatives is to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges are recorded in accumulated other comprehensive income and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the three and nine months ended September 30, 2016 , such derivatives were used to hedge the variable cash outflows associated with Federal Home Loan Bank borrowings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. The Company implemented this program during the quarter ended September 30, 2015. During the three and nine months ended September 30, 2016 and 2015, the Company did not record any hedge ineffectiveness. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s debt. During the next twelve months, the Company estimates that $255,000 will be reclassified as an increase to interest expense. As of September 30, 2016 , the Company had one outstanding interest rate derivative with a notional amount of $40.0 million that was designated as a cash flow hedge of interest rate risk. The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition at September 30, 2016 and December 31, 2015 (in thousands): At September 30, 2016 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 18,634 Other liabilities $ 19,468 Credit contracts Other assets 7 Other liabilities 26 Total derivatives not designated as a hedging instrument $ 18,641 $ 19,494 Derivatives designated as a a hedging instrument: Interest rate products Other assets $ — Other liabilities $ 722 Total derivatives designated as a hedging instrument $ — $ 722 At December 31, 2015 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 6,849 Other liabilities $ 6,623 Credit contracts Other assets 5 Other liabilities — Total derivatives not designated as a hedging instrument $ 6,854 $ 6,623 Derivatives designated as a a hedging instrument: Interest rate products Other assets $ — Other liabilities $ 122 Total derivatives designated as a hedging instrument $ — $ 122 The tables below present the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income during the three and nine months ended September 30, 2016 and 2015 (in thousands). Gain (loss) recognized in Income on derivatives for the three months ended Consolidated Statements of Income September 30, 2016 September 30, 2015 Derivatives not designated as a hedging instrument: Interest rate products Other income (expense) $ (95 ) $ (335 ) Credit contracts Other income (expense) 5 (2 ) Total $ (90 ) $ (337 ) Derivatives designated as a hedging instrument: Interest rate products Other income (expense) $ (129 ) $ (55 ) Total $ (129 ) $ (55 ) Gain (loss) recognized in Income on derivatives for the nine months ended Consolidated Statements of Income September 30, 2016 September 30, 2015 Derivatives not designated as a hedging instrument: Interest rate products Other income (expense) $ (1,060 ) $ 75 Credit contracts Other income (expense) 103 1 Total $ (957 ) $ 76 Derivatives designated as a hedging instrument: Interest rate products Other income (expense) $ (366 ) $ (55 ) Total $ (366 ) $ (55 ) The Company has agreements with certain of its derivative counterparties that contain a provision that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. In addition, the Company has agreements with certain of its derivative counterparties that contain a provision that if the Company fails to maintain its status as a well/adequate capitalized institution, then the counterparty could terminate the derivative positions and the Company would be required to settle its obligations under the agreements. As of September 30, 2016 , the termination value of derivatives in a net liability position, which includes accrued interest, was $20.4 million . The Company has minimum collateral posting thresholds with certain of its derivative counterparties, and has posted collateral of $21.1 million against its obligations under these agreements. If the Company had breached any of these provisions at September 30, 2016 , it could have been required to settle its obligations under the agreements at the termination value.

Summary of Significant Accoun18

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Financial Statement Presentation	Basis of Financial Statement Presentation The accompanying unaudited consolidated financial statements include the accounts of Provident Financial Services, Inc. and its wholly owned subsidiary, Provident Bank (the “Bank,” together with Provident Financial Services, Inc., the “Company”). In preparing the interim unaudited consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated statements of financial condition and the consolidated statements of income for the periods presented. Actual results could differ from these estimates. The allowance for loan losses, the valuation of securities available for sale and the valuation of deferred tax assets are material estimates that are particularly susceptible to near-term change. The interim unaudited consolidated financial statements reflect all normal and recurring adjustments, which are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. The results of operations for the three and nine months ended September 30, 2016 are not necessarily indicative of the results of operations that may be expected for all of 2016 . Certain information and note disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited consolidated financial statements should be read in conjunction with the December 31, 2015 Annual Report to Stockholders on Form 10-K.
Impact of Recent Accounting Pronouncements	Impact of Recent Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU”) No. 2016-13, “Measurement of Credit Losses on Financial Instruments.” The main objective of this ASU is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments by a reporting entity at each reporting date. The amendments in this ASU require financial assets measured at amortized cost to be presented at the net amount expected to be collected. The allowance for credit losses would represent a valuation account that would be deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. The income statement would reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The measurement of expected credit losses would be based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. An entity will be required to use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. The amendments in ASU 2016-13 are effective for fiscal years, including interim periods, beginning after December 15, 2019. Early adoption of this ASU is permitted for fiscal years beginning after December 15, 2018. The Company is currently assessing the impact that the guidance will have on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” ASU No. 2016-09 simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, classification on the statement of cash flows, and accounting for forfeitures. The Company adopted ASU No. 2016-09 prospectively, effective for the third quarter of 2016. Upon adoption, the Company recorded an immaterial cumulative-effect adjustment to the opening balance of retained earnings. In addition, ASU No. 2016-09 requires that excess tax benefits and shortfalls be recorded as income tax benefit or expense in the income statement, rather than as equity. This resulted in an immaterial benefit to income tax expense in the third quarter of 2016. Relative to forfeitures, ASU No. 2016-09 allows an entity’s accounting policy election to either continue to estimate the number of awards that are expected to vest, or account for forfeitures when they occur. The Company has elected to account for forfeitures when they occur. The income tax effects of ASU No. 2016-09 on the statement of cash flows are now classified as cash flows from operating activities. The Company elected to apply this cash flow classification guidance prospectively and, therefore, prior periods have not been adjusted. ASU No. 2016-09 also requires the presentation of certain employee withholding taxes as a financing activity on the Consolidated Statement of Cash Flows. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842).” This ASU requires all lessees to recognize a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date. Lessor accounting remains largely unchanged under the new guidance. The guidance is effective for fiscal years beginning after December 15, 2018, including interim reporting periods within that reporting period, with early adoption permitted. A modified retrospective approach must be applied for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company is currently assessing the impact that the guidance will have on the Company's consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Liabilities." This ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. This amendment supersedes the guidance to classify equity securities with readily determinable fair values into different categories, requires equity securities to be measured at fair value with changes in the fair value recognized through net income, and simplifies the impairment assessment of equity investments without readily determinable fair values. The amendment requires public business entities that are required to disclose the fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using the exit price notion. The amendment requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option. The amendment requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. The amendment reduces diversity in current practice by clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment by means of a cumulative-effect adjustment as of the beginning of the fiscal year of adoption, with the exception of the amendment related to equity securities without readily determinable fair values, which should be applied prospectively to equity investments that exist as of the date of adoption. The Company is currently evaluating the impact that the guidance will have on the Company's consolidated financial statements. In September 2015, the FASB issued ASU No. 2015-16, "Business Combinations, Simplifying the Accounting for Measurement - Period Adjustments." The amendments in this update apply to all entities that have reported provisional amounts for items in a business combination for which the accounting is incomplete by the end of the reporting period in which the combination occurs and during the measurement period have an adjustment to provisional amounts recognized. In these cases, the acquirer must record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The amendments in this update are effective for fiscal years beginning after December 15, 2015 including interim periods within those fiscal years. The Company’s adoption of this ASU did not have a material impact on its consolidated financial statements. In June 2014, the FASB issued ASU No. 2014-12, "Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period," which requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. This update is effective for interim and annual periods beginning after December 15, 2015. The amendments can be applied prospectively to all awards granted or modified after the effective date or retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented and to all new or modified awards thereafter. Early adoption is permitted. The adoption of this guidance did not have a significant impact on the Company’s consolidated financial statements. Also in June 2014, the FASB issued ASU No. 2014-11, "Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures" which aligns the accounting for repurchase to maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. This update is effective for the first interim or annual period beginning after December 15, 2014. In addition the disclosure of certain transactions accounted for as a sale is effective for the first interim or annual period beginning on or after December 15, 2014, and the disclosure for transactions accounted for as secured borrowings is required for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. Early adoption was prohibited. The Company's adoption of this ASU did not have an impact on its consolidated financial statements.

Summary of Significant Accoun19

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Calculations	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share calculations for the three and nine months ended September 30, 2016 and 2015 (dollars in thousands, except per share amounts): Three months ended September 30, 2016 2015 Net Income Weighted Average Common Shares Outstanding Per Share Amount Net Income Weighted Average Common Shares Outstanding Per Share Amount Net income $ 22,906 $ 20,609 Basic earnings per share: Income available to common stockholders $ 22,906 63,728,393 $ 0.36 $ 20,609 63,034,185 $ 0.33 Dilutive shares 206,493 164,114 Diluted earnings per share: Income available to common stockholders $ 22,906 63,934,886 $ 0.36 $ 20,609 63,198,299 $ 0.33 Nine months ended September 30, 2016 2015 Net Income Weighted Average Common Shares Outstanding Per Share Amount Net Income Weighted Average Common Shares Outstanding Per Share Amount Net income $ 65,235 $ 62,207 Basic earnings per share: Income available to common stockholders $ 65,235 63,545,065 $ 1.03 $ 62,207 62,868,745 $ 0.99 Dilutive shares 182,658 160,644 Diluted earnings per share: Income available to common stockholders $ 65,235 63,727,723 $ 1.02 $ 62,207 63,029,389 $ 0.99

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value, Option, Quantitative Disclosures [Line Items]
Securities Available for Sale	The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the fair value for securities available for sale at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Amortized Gross Gross Fair US Treasury obligations $ 7,998 33 — 8,031 Agency obligations 69,169 221 — 69,390 Mortgage-backed securities 915,693 20,275 (187 ) 935,781 State and municipal obligations 4,162 191 — 4,353 Corporate obligations 14,014 127 (9 ) 14,132 Equity securities 397 151 — 548 $ 1,011,433 20,998 (196 ) 1,032,235 December 31, 2015 Amortized Gross Gross Fair US Treasury obligations $ 8,006 — (2 ) 8,004 Agency obligations 82,396 82 (148 ) 82,330 Mortgage-backed securities 857,430 9,828 (3,397 ) 863,861 State and municipal obligations 4,193 115 — 4,308 Corporate obligations 5,516 6 (10 ) 5,512 Equity securities 397 122 — 519 $ 957,938 10,153 (3,557 ) 964,534
Investment Securities Held to Maturity	The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the estimated fair value for investment securities held to maturity at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Amortized cost Gross unrealized gains Gross unrealized losses Fair value Agency obligations $ 2,688 3 (3 ) 2,688 Mortgage-backed securities 1,037 42 — 1,079 State and municipal obligations 462,603 19,411 (320 ) 481,694 Corporate obligations 10,031 31 (7 ) 10,055 $ 476,359 19,487 (330 ) 495,516 December 31, 2015 Amortized cost Gross unrealized gains Gross unrealized losses Fair value Agency obligations $ 4,096 9 (8 ) 4,097 Mortgage-backed securities 1,597 61 — 1,658 State and municipal obligations 458,062 15,094 (495 ) 472,661 Corporate obligations 9,929 11 (25 ) 9,915 $ 473,684 15,175 (528 ) 488,331
Available-for-sale Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Investment Securities Classified by Contractual Maturity	The amortized cost and fair value of securities available for sale at September 30, 2016 , by contractual maturity, are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. September 30, 2016 Amortized cost Fair value Due in one year or less $ 43,489 43,565 Due after one year through five years 35,924 36,103 Due after five years through ten years 15,930 16,238 Due after ten years — — $ 95,343 95,906
Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment	The following tables represent the Company’s disclosure regarding securities available for sale with temporary impairment at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Mortgage-backed securities $ 61,786 (181 ) 398 (6 ) 62,184 (187 ) Corporate obligations — — 992 (9 ) 992 (9 ) $ 61,786 (181 ) 1,390 (15 ) 63,176 (196 ) December 31, 2015 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses U.S. Treasury obligations $ 8,004 (2 ) — — 8,004 (2 ) Agency obligations 59,197 (148 ) — — 59,197 (148 ) Mortgage-backed securities 327,263 (2,427 ) 47,911 (970 ) 375,174 (3,397 ) Corporate obligations 500 — 992 (10 ) 1,492 (10 ) $ 394,964 (2,577 ) 48,903 (980 ) 443,867 (3,557 )
Held-to-maturity Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Investment Securities Classified by Contractual Maturity	The amortized cost and fair value of investment securities in the held to maturity portfolio at September 30, 2016 by contractual maturity are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. September 30, 2016 Amortized cost Fair value Due in one year or less $ 14,256 14,296 Due after one year through five years 50,309 51,462 Due after five years through ten years 238,948 250,709 Due after ten years 171,809 177,970 $ 475,322 494,437
Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment	The following tables represent the Company’s disclosure on investment securities held to maturity with temporary impairment at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Agency obligations $ 1,697 (3 ) — — 1,697 (3 ) State and municipal obligations 19,572 (165 ) 6,815 (155 ) 26,387 (320 ) Corporate obligations 3,452 (7 ) — — 3,452 (7 ) $ 24,721 (175 ) 6,815 (155 ) 31,536 (330 ) December 31, 2015 Unrealized Losses Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Agency obligations $ 1,244 (6 ) 278 (2 ) 1,522 (8 ) State and municipal obligations 24,266 (165 ) 17,746 (330 ) 42,012 (495 ) Corporate obligations 5,840 (18 ) 744 (7 ) 6,584 (25 ) $ 31,350 (189 ) 18,768 (339 ) 50,118 (528 )

Loans Receivable and Allowanc21

Loans Receivable and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2016
Receivables [Abstract]
Schedule of Summarized Loans Receivable	Loans receivable at September 30, 2016 and December 31, 2015 are summarized as follows (in thousands): September 30, 2016 December 31, 2015 Mortgage loans: Residential $ 1,213,507 1,254,036 Commercial 1,884,155 1,714,923 Multi-family 1,384,428 1,233,792 Construction 316,803 331,649 Total mortgage loans 4,798,893 4,534,400 Commercial loans 1,553,606 1,433,447 Consumer loans 538,061 566,175 Total gross loans 6,890,560 6,534,022 Purchased credit-impaired ("PCI") loans 1,691 3,435 Premiums on purchased loans 5,330 5,740 Unearned discounts (39 ) (41 ) Net deferred fees (6,956 ) (5,482 ) Total loans $ 6,890,586 6,537,674
Summary of Aging Loans Receivable by Portfolio Segment and Class	The following tables summarize the aging of loans receivable by portfolio segment and class of loans, excluding PCI loans (in thousands): September 30, 2016 30-59 Days 60-89 Days Non-accrual Recorded Total Past Due Current Total Loans Receivable Mortgage loans: Residential $ 7,147 7,579 11,317 — 26,043 1,187,464 1,213,507 Commercial 1,574 — 5,679 — 7,253 1,876,902 1,884,155 Multi-family — — 1,113 — 1,113 1,383,315 1,384,428 Construction — — 2,692 — 2,692 314,111 316,803 Total mortgage loans 8,721 7,579 20,801 — 37,101 4,761,792 4,798,893 Commercial loans 1,754 297 16,436 — 18,487 1,535,119 1,553,606 Consumer loans 2,388 1,000 2,779 — 6,167 531,894 538,061 Total gross loans $ 12,863 8,876 40,016 — 61,755 6,828,805 6,890,560 December 31, 2015 30-59 Days 60-89 Days Non-accrual Recorded Total Past Current Total Loans Receivable Mortgage loans: Residential $ 8,983 5,434 12,031 — 26,448 1,227,588 1,254,036 Commercial 1,732 543 1,263 — 3,538 1,711,385 1,714,923 Multi-family 763 506 742 — 2,011 1,231,781 1,233,792 Construction — — 2,351 — 2,351 329,298 331,649 Total mortgage loans 11,478 6,483 16,387 — 34,348 4,500,052 4,534,400 Commercial loans 632 801 23,875 165 25,473 1,407,974 1,433,447 Consumer loans 3,603 1,194 4,109 — 8,906 557,269 566,175 Total gross loans $ 15,713 8,478 44,371 165 68,727 6,465,295 6,534,022
Summary of Loans Receivable by Portfolio Segment and Impairment Method	The following table summarizes loans receivable by portfolio segment and impairment method, excluding PCI loans (in thousands): September 30, 2016 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 28,694 13,472 2,249 44,415 Collectively evaluated for impairment 4,770,199 1,540,134 535,812 6,846,145 Total gross loans $ 4,798,893 1,553,606 538,061 6,890,560 December 31, 2015 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 26,743 21,756 2,368 50,867 Collectively evaluated for impairment 4,507,657 1,411,691 563,807 6,483,155 Total gross loans $ 4,534,400 1,433,447 566,175 6,534,022
Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification	The allowance for loan losses is summarized by portfolio segment and impairment classification as follows (in thousands): September 30, 2016 Mortgage loans Commercial loans Consumer loans Total Individually evaluated for impairment $ 1,963 81 83 2,127 Collectively evaluated for impairment 27,691 28,158 3,112 58,961 Total gross loans $ 29,654 28,239 3,195 61,088 December 31, 2015 Mortgage loans Commercial loans Consumer loans Total Individually evaluated for impairment $ 2,086 91 94 2,271 Collectively evaluated for impairment 30,008 25,738 3,407 59,153 Total gross loans $ 32,094 25,829 3,501 61,424
Schedule of Troubled Debt Restructuring	The following tables present the number of loans modified as TDRs during the three and nine months ended September 30, 2016 and 2015 , along with their balances immediately prior to the modification date and post-modification as of September 30, 2016 and 2015 . There were no loans modified as TDRs during the three and nine months ended September 30, 2016 . For the three months ended September 30, 2016 September 30, 2015 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential — $ — $ — 1 $ 258 $ 256 Total mortgage loans — — — 1 258 256 Consumer loans — — — — — — Total restructured loans — $ — $ — 1 $ 258 $ 256 The following tables present the number of loans modified as TDRs during the three and nine months ended September 30, 2016 and 2015 , along with their balances immediately prior to the modification date and post-modification as of September 30, 2016 and 2015 . There were no loans modified as TDRs during the three and nine months ended September 30, 2016 . For the three months ended September 30, 2016 September 30, 2015 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential — $ — $ — 1 $ 258 $ 256 Total mortgage loans — — — 1 258 256 Consumer loans — — — — — — Total restructured loans — $ — $ — 1 $ 258 $ 256 For the nine months ended September 30, 2016 September 30, 2015 Troubled Debt Restructurings Number of Pre-Modification Post-Modification Number of Pre-Modification Post-Modification ($ in thousands) Mortgage loans: Residential — $ — $ — 6 $ 2,192 $ 2,184 Construction — — — 1 2,600 2,096 Total mortgage loans — — — 7 4,792 4,280 Commercial loans — — — 4 6,659 6,903 Consumer loans — — — 2 123 115 Total restructured loans — $ — $ — 13 $ 11,574 $ 11,298
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period	The following table summarizes the changes in the accretable yield for PCI loans during the three and nine months ended September 30, 2016 and 2015 (in thousands): Three months ended September 30, Nine months ended September 30, 2016 2015 2016 2015 Beginning balance $ 328 609 676 695 Accretion (225 ) (220 ) (1,065 ) (683 ) Reclassification from non-accretable discount 209 172 701 549 Ending balance $ 312 561 312 561
Schedule of Allowance for Loan Losses by Portfolio Segment	The activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2016 and 2015 was as follows (in thousands): Three months ended September 30, Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Unallocated (1) Total 2016 Balance at beginning of period $ 31,634 26,299 3,000 60,933 — 60,933 Provision charged to operations (1,599 ) 2,378 221 1,000 — 1,000 Recoveries of loans previously charged-off 2 68 160 230 — 230 Loans charged-off (383 ) (506 ) (186 ) (1,075 ) — (1,075 ) Balance at end of period $ 29,654 28,239 3,195 61,088 — 61,088 2015 Balance at beginning of period $ 31,824 22,840 4,570 59,234 390 59,624 Provision charged to operations 569 1,604 (411 ) 1,762 (362 ) 1,400 Recoveries of loans previously charged-off 3 762 352 1,117 — 1,117 Loans charged-off (774 ) (130 ) (772 ) (1,676 ) (1 ) (1,677 ) Balance at end of period $ 31,622 25,076 3,739 60,437 27 60,464 Nine months ended September 30, Mortgage Commercial Consumer Total Portfolio Unallocated (1) Total 2016 Balance at beginning of period $ 32,094 25,829 3,501 61,424 — 61,424 Provision charged to operations (2,294 ) 6,647 (153 ) 4,200 — 4,200 Recoveries of loans previously charged-off 575 351 697 1,623 — 1,623 Loans charged-off (721 ) (4,588 ) (850 ) (6,159 ) — (6,159 ) Balance at end of period $ 29,654 28,239 3,195 61,088 — 61,088 2015 Balance at beginning of period $ 31,977 24,381 4,881 61,239 495 61,734 Provision charged to operations 1,924 926 718 3,568 (468 ) 3,100 Recoveries of loans previously charged-off 139 1,636 819 2,594 — 2,594 Loans charged-off (2,418 ) (1,867 ) (2,679 ) (6,964 ) — (6,964 ) Balance at end of period $ 31,622 25,076 3,739 60,437 27 60,464 (1) For the year ended December 31, 2015, the Company enhanced its allowance for loan losses process and allocated the previously unallocated allowance using both qualitative and quantitative factors.
Summary of Impaired Loans Receivable by Class	The following table presents loans individually evaluated for impairment by class and loan category, excluding PCI loans (in thousands): September 30, 2016 December 31, 2015 Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Loans with no related allowance Mortgage loans: Residential $ 11,574 8,580 — 8,905 340 12,144 8,799 — 9,079 451 Commercial 3,051 2,989 — 3,002 31 — — — — — Multi-family — — — — — — — — — — Construction 2,553 2,517 — 2,513 — 2,358 2,351 — 1,170 16 Total 17,178 14,086 — 14,420 371 14,502 11,150 — 10,249 467 Commercial loans 16,238 13,391 — 13,810 4 23,754 21,144 — 21,875 747 Consumer loans 1,510 1,003 — 1,038 44 1,560 1,082 — 1,121 48 Total impaired loans $ 34,926 28,480 — 29,268 419 39,816 33,376 — 33,245 1,262 Loans with an allowance recorded Mortgage loans: Residential $ 14,190 13,515 1,800 13,759 378 14,997 14,353 1,901 14,500 505 Commercial 1,094 1,093 163 1,102 41 1,240 1,240 185 1,361 63 Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 15,284 14,608 1,963 14,861 419 16,237 15,593 2,086 15,861 568 Commercial loans 81 81 81 81 — 612 612 91 807 52 Consumer loans 1,257 1,246 83 1,266 49 1,297 1,286 94 1,312 67 Total impaired loans $ 16,622 15,935 2,127 16,208 468 18,146 17,491 2,271 17,980 687 Total impaired loans Mortgage loans: Residential $ 25,764 22,095 1,800 22,664 718 27,141 23,152 1,901 23,579 956 Commercial 4,145 4,082 163 4,104 72 1,240 1,240 185 1,361 63 Multi-family — — — — — — — — — — Construction 2,553 2,517 — 2,513 — 2,358 2,351 — 1,170 16 Total 32,462 28,694 1,963 29,281 790 30,739 26,743 2,086 26,110 1,035 Commercial loans 16,319 13,472 81 13,891 4 24,366 21,756 91 22,682 799 Consumer loans 2,767 2,249 83 2,304 93 2,857 2,368 94 2,433 115 Total impaired loans $ 51,548 44,415 2,127 45,476 887 57,962 50,867 2,271 51,225 1,949
Summary of Loans Receivable by Credit Quality Risk Rating Indicator	Loans receivable by credit quality risk rating indicator, excluding PCI loans, are as follows (in thousands): At September 30, 2016 Residential Commercial mortgage Multi- family Construction Total mortgages Commercial Consumer Total loans Special mention $ 7,579 21,595 — — 29,174 18,035 1,000 48,209 Substandard 12,549 25,046 1,237 2,517 41,349 34,943 2,728 79,020 Doubtful — — — — — — — — Loss — — — — — — — — Total classified and criticized 20,128 46,641 1,237 2,517 70,523 52,978 3,728 127,229 Pass/Watch 1,193,379 1,837,514 1,383,191 314,286 4,728,370 1,500,628 534,333 6,763,331 Total $ 1,213,507 1,884,155 1,384,428 316,803 4,798,893 1,553,606 538,061 6,890,560 At December 31, 2015 Residential Commercial mortgage Multi- family Construction Total mortgages Commercial Consumer Total loans Special mention $ 5,434 29,363 1,080 — 35,877 76,464 1,194 113,535 Substandard 12,031 19,451 1,248 2,351 35,081 38,654 4,054 77,789 Doubtful — — — — — 8 — 8 Loss — — — — — — — — Total classified and criticized 17,465 48,814 2,328 2,351 70,958 115,126 5,248 191,332 Pass/Watch 1,236,571 1,666,109 1,231,464 329,298 4,463,442 1,318,321 560,927 6,342,690 Total $ 1,254,036 1,714,923 1,233,792 331,649 4,534,400 1,433,447 566,175 6,534,022

Deposits (Tables)

Deposits (Tables)	9 Months Ended
	Sep. 30, 2016
Banking and Thrift [Abstract]
Schedule of Deposits	Deposits at September 30, 2016 and December 31, 2015 are summarized as follows (in thousands): September 30, 2016 December 31, 2015 Savings $ 1,074,708 985,478 Money market 1,586,397 1,468,352 NOW 1,908,250 1,540,894 Non-interest bearing 1,289,713 1,189,542 Certificates of deposit 668,430 739,721 Total deposits $ 6,527,498 5,923,987

Components of Net Periodic Be23

Components of Net Periodic Benefit Cost (Tables)	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Net Periodic Benefit Cost (Increase)	Net periodic benefit (increase) cost for pension benefits and other post-retirement benefits for the three and nine months ended September 30, 2016 and 2015 includes the following components (in thousands): Three months ended September 30, Nine months ended September 30, Pension benefits Other post- retirement benefits Pension benefits Other post- retirement benefits 2016 2015 2016 2015 2016 2015 2016 2015 Service cost $ — — 37 42 $ — — 112 126 Interest cost 312 284 285 280 936 852 854 842 Expected return on plan assets (612 ) (632 ) — — (1,836 ) (1,898 ) — — Amortization of prior service cost — — — — — — — — Amortization of the net loss 236 193 — — 708 581 — — Net periodic benefit (increase) cost $ (64 ) (155 ) 322 322 $ (192 ) (465 ) 966 968

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Assets and Liabilities Reported on Consolidated Statements of Financial Condition at Fair Values	The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair values as of September 30, 2016 and December 31, 2015 , by level within the fair value hierarchy: Fair Value Measurements at Reporting Date Using: (In thousands) September 30, 2016 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Securities available for sale: US Treasury obligations $ 8,031 8,031 — — Agency obligations 69,390 69,390 — — Mortgage-backed securities 935,781 — 935,781 — State and municipal obligations 4,353 — 4,353 — Corporate obligations 14,132 — 14,132 — Equity securities 548 548 — — Total securities available for sale 1,032,235 77,969 954,266 — Derivative assets 18,641 — 18,641 — $ 1,050,876 77,969 972,907 — Derivative liabilities $ 20,216 — 20,216 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 9,100 — — 9,100 Foreclosed assets 10,087 — — 10,087 $ 19,187 — — 19,187 Fair Value Measurements at Reporting Date Using: (In thousands) December 31, 2015 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Securities available for sale: US Treasury obligations $ 8,004 8,004 — — Agency obligations 82,330 82,330 — — Mortgage-backed securities 863,861 — 863,861 — State and municipal obligations 4,308 — 4,308 — Corporate obligations 5,512 — 5,512 — Equity securities 519 519 — — Total securities available for sale $ 964,534 90,853 873,681 — Derivative assets 6,854 — 6,854 — $ 971,388 90,853 880,535 — Derivative liabilities $ 6,745 — 6,745 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 9,481 — — 9,481 Foreclosed assets 10,546 — — 10,546 $ 20,027 — — 20,027
Schedule of Financial Instruments at Carrying and Fair Values	The following tables present the Company’s financial instruments at their carrying and fair values as of September 30, 2016 and December 31, 2015 . Fair values are presented by level within the fair value hierarchy. Fair Value Measurements at September 30, 2016 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 159,674 159,674 159,674 — — Securities available for sale: US Treasury obligations 8,031 8,031 8,031 — — Agency obligations 69,390 69,390 69,390 — — Mortgage-backed securities 935,781 935,781 — 935,781 — State and municipal obligations 4,353 4,353 — 4,353 — Corporate obligations 14,132 14,132 — 14,132 — Equity securities 548 548 548 — — Total securities available for sale $ 1,032,235 1,032,235 77,969 954,266 — Investment securities held to maturity: Agency obligations 2,688 2,688 2,688 — — Mortgage-backed securities 1,037 1,079 — 1,079 — State and municipal obligations 462,603 481,694 — 481,694 — Corporate obligations 10,031 10,055 — 10,055 — Total securities held to maturity $ 476,359 495,516 2,688 492,828 — FHLBNY stock 71,019 71,019 71,019 — — Loans, net of allowance for loan losses 6,829,498 6,924,746 — — 6,924,746 Derivative assets 18,641 18,641 — 18,641 — Financial liabilities: Deposits other than certificates of deposits $ 5,859,068 5,859,068 5,859,068 — — Certificates of deposit 668,430 670,146 — 670,146 — Total deposits $ 6,527,498 6,529,214 5,859,068 670,146 — Borrowings 1,522,368 1,540,977 — 1,540,977 — Derivative liabilities 20,216 20,216 — 20,216 — Fair Value Measurements at December 31, 2015 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 102,226 102,226 102,226 — — Securities available for sale: US Treasury obligations 8,004 8,004 8,004 — — Agency obligations 82,330 82,330 82,330 — — Mortgage-backed securities 863,861 863,861 — 863,861 — State and municipal obligations 4,308 4,308 — 4,308 — Corporate obligations 5,512 5,512 — 5,512 — Equity securities 519 519 519 — — Total securities available for sale $ 964,534 964,534 90,853 873,681 — Investment securities held to maturity: Agency obligations $ 4,096 4,097 4,097 — — Mortgage-backed securities 1,597 1,658 — 1,658 — State and municipal obligations 458,062 472,661 — 472,661 — Corporate obligations 9,929 9,915 — 9,915 — Total securities held to maturity $ 473,684 488,331 4,097 484,234 — FHLBNY stock 78,181 78,181 78,181 — — Loans, net of allowance for loan losses 6,476,250 6,509,502 — — 6,509,502 Derivative assets 6,854 6,854 — 6,854 — Financial liabilities: Deposits other than certificates of deposits $ 5,184,266 5,184,266 5,184,266 — — Certificates of deposit 739,721 742,020 — 742,020 — Total deposits $ 5,923,987 5,926,286 5,184,266 742,020 — Borrowings 1,707,632 1,726,726 — 1,726,726 — Derivative liabilities 6,745 6,745 — 6,745 —

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Components of Other Comprehensive Income (Loss)	The following table presents the components of other comprehensive (loss) income both gross and net of tax, for the three and nine months ended September 30, 2016 and 2015 (in thousands): Three months ended September 30, 2016 2015 Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax Components of Other Comprehensive Income: Unrealized gains and losses on securities available for sale: Net (losses) gains arising during the period $ (2,575 ) 1,034 (1,541 ) 6,146 (2,468 ) 3,678 Reclassification adjustment for losses included in net income 43 (17 ) 26 — — — Total (2,532 ) 1,017 (1,515 ) 6,146 (2,468 ) 3,678 Unrealized gains (losses) on derivatives (cash flow hedges) 384 (154 ) 230 (388 ) 156 (232 ) Amortization related to post-retirement obligations 236 (95 ) 141 193 (78 ) 115 Total other comprehensive (loss) income $ (1,912 ) 768 (1,144 ) 5,951 (2,390 ) 3,561 Nine months ended September 30, 2016 2015 Before Tax After Before Tax After Components of Other Comprehensive Income: Unrealized gains and losses on securities available for sale: Net gains arising during the period $ 14,260 (5,727 ) 8,533 4,111 (1,651 ) 2,460 Reclassification adjustment for gains included in net income (54 ) 22 (32 ) (645 ) 259 (386 ) Total 14,206 (5,705 ) 8,501 3,466 (1,392 ) 2,074 Unrealized losses on derivatives (cash flow hedges) (603 ) 242 (361 ) (388 ) 156 (232 ) Amortization related to post-retirement obligations 635 (255 ) 380 379 (152 ) 227 Total other comprehensive income $ 14,238 (5,718 ) 8,520 3,457 (1,388 ) 2,069
Components of Accumulated Other Comprehensive Income, Net of Tax	The following tables present the changes in the components of accumulated other comprehensive income, net of tax, for the three and nine months ended September 30, 2016 and 2015 (in thousands): Changes in Accumulated Other Comprehensive Income by Component, net of tax for the three months ended September 30, 2016 2015 Unrealized Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Unrealized for Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Balance at $ 13,967 (6,185 ) (664 ) 7,118 6,139 (7,602 ) — (1,463 ) Current period other comprehensive (loss) income (1,515 ) 141 230 (1,144 ) 3,678 115 (232 ) 3,561 Balance at September 30, $ 12,452 (6,044 ) (434 ) 5,974 9,817 (7,487 ) (232 ) 2,098 Changes in Accumulated Other Comprehensive Income by Component, net of tax for the nine months ended September 30, 2016 2015 Unrealized Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Unrealized for Sale Post Retirement Unrealized (losses) on Derivatives (cash flow hedges) Accumulated Balance at December 31, $ 3,951 (6,424 ) (73 ) (2,546 ) 7,743 (7,714 ) — 29 Current period other comprehensive income (loss) 8,501 380 (361 ) 8,520 2,074 227 (232 ) 2,069 Balance at September 30, $ 12,452 (6,044 ) (434 ) 5,974 9,817 (7,487 ) (232 ) 2,098
Summary of Reclassifications Out of Accumulated Other Comprehensive Income	The following tables summarize the reclassifications out of accumulated other comprehensive income to the consolidated statements of income for the three and nine months ended September 30, 2016 and 2015 (in thousands): Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the three months ended September 30, Affected line item in the Consolidated 2016 2015 Details of AOCI: Securities available for sale: Realized net losses on the sale of securities available for sale $ (43 ) — Net gain on securities transactions 17 — Income tax expense (26 ) — Net of tax Post-retirement obligations: Amortization of actuarial losses 236 193 Compensation and employee benefits (1) (95 ) (78 ) Income tax expense 141 115 Net of tax Total reclassifications $ 115 115 Net of tax Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the nine months ended September 30, Affected line item in the Consolidated 2016 2015 Details of AOCI: Securities available for sale: Realized net gains on the sale of securities available for sale $ 54 645 Net gain on securities transactions (22 ) (259 ) Income tax expense 32 386 Net of tax Post-retirement obligations: Amortization of actuarial losses 708 581 Compensation and employee benefits (1) (284 ) (233 ) Income tax expense 424 348 Net of tax Total reclassifications $ 456 734 Net of tax (1) This item is included in the computation of net periodic benefit cost. See Note 6. Components of Net Periodic Benefit Cost.

Derivatives and Hedging Activ26

Derivatives and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of Derivative Financial Instruments	The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition at September 30, 2016 and December 31, 2015 (in thousands): At September 30, 2016 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 18,634 Other liabilities $ 19,468 Credit contracts Other assets 7 Other liabilities 26 Total derivatives not designated as a hedging instrument $ 18,641 $ 19,494 Derivatives designated as a a hedging instrument: Interest rate products Other assets $ — Other liabilities $ 722 Total derivatives designated as a hedging instrument $ — $ 722 At December 31, 2015 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 6,849 Other liabilities $ 6,623 Credit contracts Other assets 5 Other liabilities — Total derivatives not designated as a hedging instrument $ 6,854 $ 6,623 Derivatives designated as a a hedging instrument: Interest rate products Other assets $ — Other liabilities $ 122 Total derivatives designated as a hedging instrument $ — $ 122
Effect of the derivative financial instruments on the Income Statement	The tables below present the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income during the three and nine months ended September 30, 2016 and 2015 (in thousands). Gain (loss) recognized in Income on derivatives for the three months ended Consolidated Statements of Income September 30, 2016 September 30, 2015 Derivatives not designated as a hedging instrument: Interest rate products Other income (expense) $ (95 ) $ (335 ) Credit contracts Other income (expense) 5 (2 ) Total $ (90 ) $ (337 ) Derivatives designated as a hedging instrument: Interest rate products Other income (expense) $ (129 ) $ (55 ) Total $ (129 ) $ (55 ) Gain (loss) recognized in Income on derivatives for the nine months ended Consolidated Statements of Income September 30, 2016 September 30, 2015 Derivatives not designated as a hedging instrument: Interest rate products Other income (expense) $ (1,060 ) $ 75 Credit contracts Other income (expense) 103 1 Total $ (957 ) $ 76 Derivatives designated as a hedging instrument: Interest rate products Other income (expense) $ (366 ) $ (55 ) Total $ (366 ) $ (55 )

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Narrative) (Detail) - shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Accounting Policies [Abstract]
Anti-dilutive stock options and awards excluded from computation of earnings per share	528,205	518,433

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Calculations) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accounting Policies [Abstract]
Net income	$ 22,906	$ 20,609	$ 65,235	$ 62,207
Income available to common stockholders, basic	22,906	20,609	65,235	62,207
Income available to common stockholders, diluted	$ 22,906	$ 20,609	$ 65,235	$ 62,207
Weighted average common shares outstanding, basic (in shares)	63,728,393	63,034,185	63,545,065	62,868,745
Dilutive shares (in shares)	206,493	164,114	182,658	160,644
Weighted average common shares outstanding, diluted (in shares)	63,934,886	63,198,299	63,727,723	63,029,389
Income available to common stockholders, per share amount, basic (usd per share)	$ 0.36	$ 0.33	$ 1.03	$ 0.99
Income available to common stockholders, per share amount, diluted (usd per share)	$ 0.36	$ 0.33	$ 1.02	$ 0.99

Business Combinations (Narrativ

Business Combinations (Narrative) (Details) - The MDE Group [Member] - USD ($)	Apr. 01, 2015	Sep. 30, 2016
Business Acquisition [Line Items]
Acquired goodwill	$ 18,300,000
Contingent consideration liability	$ 338,000	$ 0
Period of time after closing for contingent consideration arrangements,	4 years
Contingent consideration maximum amount	$ 12,500,000
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible customer relationship	$ 7,000,000

Investment Securities (Narrativ

Investment Securities (Narrative) (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)positionsecurity	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)positionsecurity	Sep. 30, 2015USD ($)	Dec. 31, 2015USD ($)positionsecurity
Schedule of Held-to-maturity Securities [Line Items]
Securities available for sale, at fair value	$ 1,032,235,000		$ 1,032,235,000		$ 964,534,000
Investment securities held to maturity	$ 476,359,000		$ 476,359,000		$ 473,684,000
Total number of all held to maturity and available for sale securities in an unrealized loss position | security	76		76		163
Amortized cost	$ 1,011,433,000		$ 1,011,433,000		$ 957,938,000
Proceeds from the sale of securities available for sale	1,200,000	$ 0	3,400,000
Gross gains	0		95,000	$ 643,000
Gross losses	$ 45,000		45,000	0
Proceeds from maturities, prepayments and calls of short-term investments				14,000,000
Proceeds from calls on securities available for sale			$ 0	465,000
Recognized gain on calls of securities				2,000
Number of securities in an unrealized loss position | position	16		16		64
Other-than-temporary impairment charges, net	$ 0		$ 0
Proceeds from calls of held to maturity securities	20,300,000	8,000,000	35,200,000	21,200,000
Recognized gain on calls of securities, held-to-maturity portfolio	2,000		4,000	5,000
Recognized loss on calls of securities held-to-maturity portfolio	0	$ 0	0	$ 0
Held-to-maturity securities, fair value	$ 495,516,000		$ 495,516,000		$ 488,331,000
Number of securities in an unrealized loss position | position	60		60		99
Private Label Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 523,000		$ 523,000
Number of securities in an unrealized loss position | position	3		3
Unrealized losses			$ 6,000
Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities available for sale, at fair value	$ 935,781,000		935,781,000		$ 863,861,000
Investment securities held to maturity	1,037,000		1,037,000		1,597,000
Amortized cost	915,693,000		915,693,000		857,430,000
Held-to-maturity securities, amortized cost	1,000,000		1,000,000
Held-to-maturity securities, fair value	1,079,000		1,079,000		1,658,000
Equity Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities available for sale, at fair value	548,000		548,000		519,000
Amortized cost	$ 397,000		$ 397,000		$ 397,000
External Credit Rating, Non Investment Grade [Member] | Private Label Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Number of securities in an unrealized loss position | position	0		0

Investment Securities (Securiti

Investment Securities (Securities Available for Sale) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 1,011,433	$ 957,938
Gross unrealized gains	20,998	10,153
Gross unrealized losses	(196)	(3,557)
Fair value	1,032,235	964,534
US Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	7,998	8,006
Gross unrealized gains	33	0
Gross unrealized losses	0	(2)
Fair value	8,031	8,004
Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	69,169	82,396
Gross unrealized gains	221	82
Gross unrealized losses	0	(148)
Fair value	69,390	82,330
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	915,693	857,430
Gross unrealized gains	20,275	9,828
Gross unrealized losses	(187)	(3,397)
Fair value	935,781	863,861
State And Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	4,162	4,193
Gross unrealized gains	191	115
Gross unrealized losses	0	0
Fair value	4,353	4,308
Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	14,014	5,516
Gross unrealized gains	127	6
Gross unrealized losses	(9)	(10)
Fair value	14,132	5,512
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	397	397
Gross unrealized gains	151	122
Gross unrealized losses	0	0
Fair value	$ 548	$ 519

Investment Securities (Investme

Investment Securities (Investment Securities Available for Sale by Contractual Maturity) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 1,011,433	$ 957,938
Securities available for sale, at fair value	1,032,235	$ 964,534
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, amortized cost	43,489
Due after one year through five years, amortized cost	35,924
Due after five years through ten years, amortized cost	15,930
Due after ten years, amortized cost	0
Amortized cost	95,343
Due in one year or less, fair value	43,565
Due after one year through five years, fair value	36,103
Due after five years through ten years, fair value	16,238
Due after ten years , fair value	0
Securities available for sale, at fair value	$ 95,906

Investment Securities (Disclosu

Investment Securities (Disclosure Regarding Length of Time on Securities Available for Sale with Temporary Impairment) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	$ 61,786	$ 394,964
Less than 12 months, gross unrealized losses	(181)	(2,577)
12 months or longer, fair value	1,390	48,903
12 months or longer, gross unrealized losses	(15)	(980)
Total, fair value	63,176	443,867
Total, gross unrealized losses	(196)	(3,557)
US Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value		8,004
Less than 12 months, gross unrealized losses		(2)
12 months or longer, fair value		0
12 months or longer, gross unrealized losses		0
Total, fair value		8,004
Total, gross unrealized losses	0	(2)
Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value		59,197
Less than 12 months, gross unrealized losses		(148)
12 months or longer, fair value		0
12 months or longer, gross unrealized losses		0
Total, fair value		59,197
Total, gross unrealized losses	0	(148)
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	61,786	327,263
Less than 12 months, gross unrealized losses	(181)	(2,427)
12 months or longer, fair value	398	47,911
12 months or longer, gross unrealized losses	(6)	(970)
Total, fair value	62,184	375,174
Total, gross unrealized losses	(187)	(3,397)
Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	0	500
Less than 12 months, gross unrealized losses	0	0
12 months or longer, fair value	992	992
12 months or longer, gross unrealized losses	(9)	(10)
Total, fair value	992	1,492
Total, gross unrealized losses	$ (9)	$ (10)

Investment Securities (Invest34

Investment Securities (Investment Securities Held to Maturity) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 476,359	$ 473,684
Gross unrealized gains	19,487	15,175
Gross unrealized losses	(330)	(528)
Fair value	495,516	488,331
Agency Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	2,688	4,096
Gross unrealized gains	3	9
Gross unrealized losses	(3)	(8)
Fair value	2,688	4,097
Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,037	1,597
Gross unrealized gains	42	61
Gross unrealized losses	0	0
Fair value	1,079	1,658
State And Municipal Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	462,603	458,062
Gross unrealized gains	19,411	15,094
Gross unrealized losses	(320)	(495)
Fair value	481,694	472,661
Corporate Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	10,031	9,929
Gross unrealized gains	31	11
Gross unrealized losses	(7)	(25)
Fair value	$ 10,055	$ 9,915

Investment Securities (Securi35

Investment Securities (Securities Held to Maturity by Contractual Maturity) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 476,359	$ 473,684
Fair value	495,516	$ 488,331
Held-to-maturity Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Due in one year or less, amortized cost	14,256
Due after one year through five years, amortized cost	50,309
Due after five years through ten years, amortized cost	238,948
Due after ten years, amortized cost	171,809
Amortized cost	475,322
Due in one year or less, fair value	14,296
Due after one year through five years, fair value	51,462
Due after five years through ten years, fair value	250,709
Due after ten years, fair value	177,970
Fair value	$ 494,437

Investment Securities (Disclo36

Investment Securities (Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 24,721	$ 31,350
Less than 12 months, gross unrealized losses	(175)	(189)
12 months or longer, fair value	6,815	18,768
12 months or longer, gross unrealized losses	(155)	(339)
Total, fair value	31,536	50,118
Total, gross unrealized losses	(330)	(528)
Agency Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	1,697	1,244
Less than 12 months, gross unrealized losses	(3)	(6)
12 months or longer, fair value	0	278
12 months or longer, gross unrealized losses	0	(2)
Total, fair value	1,697	1,522
Total, gross unrealized losses	(3)	(8)
State And Municipal Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	19,572	24,266
Less than 12 months, gross unrealized losses	(165)	(165)
12 months or longer, fair value	6,815	17,746
12 months or longer, gross unrealized losses	(155)	(330)
Total, fair value	26,387	42,012
Total, gross unrealized losses	(320)	(495)
Corporate Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	3,452	5,840
Less than 12 months, gross unrealized losses	(7)	(18)
12 months or longer, fair value	0	744
12 months or longer, gross unrealized losses	0	(7)
Total, fair value	3,452	6,584
Total, gross unrealized losses	$ (7)	$ (25)

Loans Receivable and Allowanc37

Loans Receivable and Allowance for Loan Losses (Narrative) (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)ContractSecurityLoantroubled_debt_restructuringborrower	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)SecurityLoan	Dec. 31, 2015USD ($)ContractSecurityLoantroubled_debt_restructuringborrower	Sep. 30, 2015SecurityLoan	May 30, 2014USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount of nonaccrual loans	$ 40,000,000		$ 40,000,000		$ 40,000,000	$ 44,400,000
Loans less than 90 days past due	5,400,000		$ 5,400,000		5,400,000	$ 18,300,000
Number of loans 90 days past due and still accruing | Contract			0			1
Recorded Investment greater than 90 days accruing	0		$ 0		0	$ 165,000
Impaired loan defined floor limit (greater than)	1,000,000		$ 1,000,000		1,000,000
Impaired loans number | SecurityLoan			139			148
Impaired loans	44,415,000		$ 44,415,000		44,415,000	$ 50,867,000
Number of troubled debt restructurings | troubled_debt_restructuring			115			122
Number of borrowers | borrower			114			120
Loans and leases receivable, impaired, nonperforming, accrual of interest	21,100,000		$ 21,100,000		$ 21,100,000	$ 26,000,000
Charge off, impaired loan		$ 312,000		$ 312,000
Weighted average modified interest rate		3.00%		5.26%
Weighted average prior modification rate		3.00%		5.71%
Number of payment defaults for loans modified as TDRs | SecurityLoan					0		0
Interest income	76,045,000	$ 73,013,000	224,824,000	$ 217,432,000
Average balance of impaired loans			45,476,000			51,225,000
Team Capital Bank [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of acquired loans								$ 5,200,000
Decrease in PCI loans			1,700,000
Balance of PCI loans	1,700,000		1,700,000		$ 1,700,000	3,400,000
Interest income	179,000	129,000	682,000	349,000
Impaired Loans Troubled Debt Restructurings [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allowances for loan losses		$ 0		$ 82,000
With Related Allowance For Loan Losses [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allowances for loan losses	2,127,000		2,127,000		2,127,000	2,271,000
Loans With No Related Allowance [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allowances for loan losses	0		0		0	0
Impaired financing receivable with no related allowance	$ 28,480,000		28,480,000		$ 28,480,000
Average balance of impaired loans			$ 29,268,000			33,245,000
Loans With No Related Allowance [Member] | No Allowance For Loan Losses Required [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired financing receivable with no related allowance						$ 33,376,000

Loans Receivable and Allowanc38

Loans Receivable and Allowance for Loan Losses (Schedule of Summarized Loans Receivable) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Servicing Liability at Amortized Cost [Line Items]
Total mortgage loans	$ 4,798,893	$ 4,534,400
Total gross loans	6,890,560	6,534,022
Purchased credit-impaired (PCI) loans	1,691	3,435
Premiums on purchased loans	5,330	5,740
Unearned discounts	(39)	(41)
Net deferred fees	(6,956)	(5,482)
Loans receivable	6,890,586	6,537,674
Residential [Member]
Servicing Liability at Amortized Cost [Line Items]
Total mortgage loans	1,213,507	1,254,036
Commercial [Member]
Servicing Liability at Amortized Cost [Line Items]
Total mortgage loans	1,884,155	1,714,923
Multi-Family [Member]
Servicing Liability at Amortized Cost [Line Items]
Total mortgage loans	1,384,428	1,233,792
Construction [Member]
Servicing Liability at Amortized Cost [Line Items]
Total mortgage loans	316,803	331,649
Commercial Loans [Member]
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	1,553,606	1,433,447
Consumer Loans [Member]
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	$ 538,061	$ 566,175

Loans Receivable and Allowanc39

Loans Receivable and Allowance for Loan Losses (Summary of Aging Loans Receivable by Portfolio Segment and Class) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 40,016	$ 44,371
Recorded Investment greater than 90 days accruing	0	165
Total Past Due	61,755	68,727
Current	6,828,805	6,465,295
Total gross loans	6,890,560	6,534,022
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	16,436	23,875
Recorded Investment greater than 90 days accruing	0	165
Total Past Due	18,487	25,473
Current	1,535,119	1,407,974
Total gross loans	1,553,606	1,433,447
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,779	4,109
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	6,167	8,906
Current	531,894	557,269
Total gross loans	538,061	566,175
Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	20,801	16,387
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	37,101	34,348
Current	4,761,792	4,500,052
Total gross loans	4,798,893	4,534,400
Mortgage Loans [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	11,317	12,031
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	26,043	26,448
Current	1,187,464	1,227,588
Total gross loans	1,213,507	1,254,036
Mortgage Loans [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	5,679	1,263
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	7,253	3,538
Current	1,876,902	1,711,385
Total gross loans	1,884,155	1,714,923
Mortgage Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,113	742
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	1,113	2,011
Current	1,383,315	1,231,781
Total gross loans	1,384,428	1,233,792
Mortgage Loans [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,692	2,351
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	2,692	2,351
Current	314,111	329,298
Total gross loans	316,803	331,649
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	12,863	15,713
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	1,754	632
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	2,388	3,603
Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	8,721	11,478
Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	7,147	8,983
Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	1,574	1,732
Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	0	763
Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	8,876	8,478
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	297	801
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	1,000	1,194
Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	7,579	6,483
Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	7,579	5,434
Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	0	543
Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	0	506
Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded investment past due	$ 0	$ 0

Loans Receivable and Allowanc40

Loans Receivable and Allowance for Loan Losses (Summary of Loans Receivable by Portfolio Segment and Impairment Method) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 44,415	$ 50,867
Collectively evaluated for impairment	6,846,145	6,483,155
Total gross loans	6,890,560	6,534,022
Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	28,694	26,743
Collectively evaluated for impairment	4,770,199	4,507,657
Total gross loans	4,798,893	4,534,400
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	13,472	21,756
Collectively evaluated for impairment	1,540,134	1,411,691
Total gross loans	1,553,606	1,433,447
Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	2,249	2,368
Collectively evaluated for impairment	535,812	563,807
Total gross loans	$ 538,061	$ 566,175

Loans Receivable and Allowanc41

Loans Receivable and Allowance for Loan Losses (Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 2,127		$ 2,271
Collectively evaluated for impairment	58,961		59,153
Total	61,088	$ 60,933	61,424	$ 60,464	$ 59,624	$ 61,734
Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	1,963		2,086
Collectively evaluated for impairment	27,691		30,008
Total	29,654	31,634	32,094	31,622	31,824	31,977
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	81		91
Collectively evaluated for impairment	28,158		25,738
Total	28,239	26,299	25,829	25,076	22,840	24,381
Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	83		94
Collectively evaluated for impairment	3,112		3,407
Total	$ 3,195	$ 3,000	$ 3,501	$ 3,739	$ 4,570	$ 4,881

Loans Receivable and Allowanc42

Loans Receivable and Allowance for Loan Losses (Schedule of Troubled Debt Restructurings) (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)SecurityLoan	Sep. 30, 2015USD ($)SecurityLoan	Sep. 30, 2016USD ($)SecurityLoan	Sep. 30, 2015USD ($)SecurityLoan
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	0	1	0	6
Pre-Modification Outstanding Recorded Investment	$ 0	$ 258	$ 0	$ 2,192
Post-Modification Outstanding Recorded Investment	$ 0	$ 256	$ 0	$ 2,184
Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan			0	1
Pre-Modification Outstanding Recorded Investment			$ 0	$ 2,600
Post-Modification Outstanding Recorded Investment			$ 0	$ 2,096
Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	0	1	0	7
Pre-Modification Outstanding Recorded Investment	$ 0	$ 258	$ 0	$ 4,792
Post-Modification Outstanding Recorded Investment	$ 0	$ 256	$ 0	$ 4,280
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan			0	4
Pre-Modification Outstanding Recorded Investment			$ 0	$ 6,659
Post-Modification Outstanding Recorded Investment			$ 0	$ 6,903
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	0	0	0	2
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 123
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 115
Finance Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	0	1	0	13
Pre-Modification Outstanding Recorded Investment	$ 0	$ 258	$ 0	$ 11,574
Post-Modification Outstanding Recorded Investment	$ 0	$ 256	$ 0	$ 11,298

Loans Receivable and Allowanc43

Loans Receivable and Allowance for Loan Losses (Change in Accretable Yield) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	$ 328	$ 609	$ 676	$ 695
Accretion	(225)	(220)	(1,065)	(683)
Reclassification from non-accretable discount	209	172	701	549
Ending balance	$ 312	$ 561	$ 312	$ 561

Loans Receivable and Allowanc44

Loans Receivable and Allowance for Loan Losses (Schedule of Allowance for Loan Losses by Portfolio Segment) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 60,933	$ 59,624	$ 61,424	$ 61,734
Provision charged to operations	1,000	1,400	4,200	3,100
Recoveries of loans previously charged-off	230	1,117	1,623	2,594
Loans charged-off	(1,075)	(1,677)	(6,159)	(6,964)
Balance at end of period	61,088	60,464	61,088	60,464
Mortgage Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	31,634	31,824	32,094	31,977
Provision charged to operations	(1,599)	569	(2,294)	1,924
Recoveries of loans previously charged-off	2	3	575	139
Loans charged-off	(383)	(774)	(721)	(2,418)
Balance at end of period	29,654	31,622	29,654	31,622
Commercial Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	26,299	22,840	25,829	24,381
Provision charged to operations	2,378	1,604	6,647	926
Recoveries of loans previously charged-off	68	762	351	1,636
Loans charged-off	(506)	(130)	(4,588)	(1,867)
Balance at end of period	28,239	25,076	28,239	25,076
Consumer Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	3,000	4,570	3,501	4,881
Provision charged to operations	221	(411)	(153)	718
Recoveries of loans previously charged-off	160	352	697	819
Loans charged-off	(186)	(772)	(850)	(2,679)
Balance at end of period	3,195	3,739	3,195	3,739
Total Portfolio Segments [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	60,933	59,234	61,424	61,239
Provision charged to operations	1,000	1,762	4,200	3,568
Recoveries of loans previously charged-off	230	1,117	1,623	2,594
Loans charged-off	(1,075)	(1,676)	(6,159)	(6,964)
Balance at end of period	61,088	60,437	61,088	60,437
Unallocated [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	0	390	0	495
Provision charged to operations	0	(362)	0	(468)
Recoveries of loans previously charged-off	0	0	0	0
Loans charged-off	0	(1)	0	0
Balance at end of period	$ 0	$ 27	$ 0	$ 27

Loans Receivable and Allowanc45

Loans Receivable and Allowance for Loan Losses (Summary of Impaired Loans Receivable by Class) (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 51,548	$ 57,962
Recorded Investment	44,415	50,867
Average Recorded Investment	45,476	51,225
Interest Income Recognized	887	1,949
Residential [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	25,764	27,141
Recorded Investment	22,095	23,152
Related Allowance	1,800	1,901
Average Recorded Investment	22,664	23,579
Interest Income Recognized	718	956
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	4,145	1,240
Recorded Investment	4,082	1,240
Related Allowance	163	185
Average Recorded Investment	4,104	1,361
Interest Income Recognized	72	63
Multi-Family [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0
Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Construction [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,553	2,358
Recorded Investment	2,517	2,351
Related Allowance	0	0
Average Recorded Investment	2,513	1,170
Interest Income Recognized	0	16
Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	32,462	30,739
Recorded Investment	28,694	26,743
Related Allowance	1,963	2,086
Average Recorded Investment	29,281	26,110
Interest Income Recognized	790	1,035
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	16,319	24,366
Recorded Investment	13,472	21,756
Related Allowance	81	91
Average Recorded Investment	13,891	22,682
Interest Income Recognized	4	799
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,767	2,857
Recorded Investment	2,249	2,368
Related Allowance	83	94
Average Recorded Investment	2,304	2,433
Interest Income Recognized	93	115
Loans With No Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	34,926	39,816
Impaired financing receivable with no related allowance	28,480
Related Allowance	0	0
Average Recorded Investment	29,268	33,245
Interest Income Recognized	419	1,262
Loans With No Related Allowance [Member] | Residential [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	11,574	12,144
Recorded Investment	8,580	8,799
Related Allowance	0	0
Average Recorded Investment	8,905	9,079
Interest Income Recognized	340	451
Loans With No Related Allowance [Member] | Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,051	0
Recorded Investment	2,989	0
Related Allowance	0	0
Average Recorded Investment	3,002	0
Interest Income Recognized	31	0
Loans With No Related Allowance [Member] | Multi-Family [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0
Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Loans With No Related Allowance [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,553	2,358
Recorded Investment	2,517	2,351
Related Allowance	0	0
Average Recorded Investment	2,513	1,170
Interest Income Recognized	0	16
Loans With No Related Allowance [Member] | Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	17,178	14,502
Recorded Investment	14,086	11,150
Related Allowance	0	0
Average Recorded Investment	14,420	10,249
Interest Income Recognized	371	467
Loans With No Related Allowance [Member] | Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	16,238	23,754
Recorded Investment	13,391	21,144
Related Allowance	0	0
Average Recorded Investment	13,810	21,875
Interest Income Recognized	4	747
Loans With No Related Allowance [Member] | Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,510	1,560
Recorded Investment	1,003	1,082
Related Allowance	0	0
Average Recorded Investment	1,038	1,121
Interest Income Recognized	44	48
Loans With Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	16,622	18,146
Recorded Investment	15,935	17,491
Related Allowance	2,127	2,271
Average Recorded Investment	16,208	17,980
Interest Income Recognized	468	687
Loans With Allowance Recorded [Member] | Residential [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	14,190	14,997
Recorded Investment	13,515	14,353
Related Allowance	1,800	1,901
Average Recorded Investment	13,759	14,500
Interest Income Recognized	378	505
Loans With Allowance Recorded [Member] | Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,094	1,240
Recorded Investment	1,093	1,240
Related Allowance	163	185
Average Recorded Investment	1,102	1,361
Interest Income Recognized	41	63
Loans With Allowance Recorded [Member] | Multi-Family [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0
Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Loans With Allowance Recorded [Member] | Construction [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	0
Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Loans With Allowance Recorded [Member] | Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	15,284	16,237
Recorded Investment	14,608	15,593
Related Allowance	1,963	2,086
Average Recorded Investment	14,861	15,861
Interest Income Recognized	419	568
Loans With Allowance Recorded [Member] | Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	81	612
Recorded Investment	81	612
Related Allowance	81	91
Average Recorded Investment	81	807
Interest Income Recognized	0	52
Loans With Allowance Recorded [Member] | Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,257	1,297
Recorded Investment	1,246	1,286
Related Allowance	83	94
Average Recorded Investment	1,266	1,312
Interest Income Recognized	$ 49	$ 67

Loans Receivable and Allowanc46

Loans Receivable and Allowance for Loan Losses (Summary of Loans Receivable by Credit Quality Risk Rating Indicator) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	$ 4,798,893	$ 4,534,400
Total gross loans	6,890,560	6,534,022
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,213,507	1,254,036
Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,884,155	1,714,923
Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,384,428	1,233,792
Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	316,803	331,649
Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	4,798,893	4,534,400
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,553,606	1,433,447
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	538,061	566,175
Total classified and criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	127,229	191,332
Total classified and criticized [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	20,128	17,465
Total classified and criticized [Member] | Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	46,641	48,814
Total classified and criticized [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,237	2,328
Total classified and criticized [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	2,517	2,351
Total classified and criticized [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	70,523	70,958
Total classified and criticized [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	52,978	115,126
Total classified and criticized [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	3,728	5,248
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	48,209	113,535
Special Mention [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	7,579	5,434
Special Mention [Member] | Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	21,595	29,363
Special Mention [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	1,080
Special Mention [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Special Mention [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	29,174	35,877
Special Mention [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	18,035	76,464
Special Mention [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,000	1,194
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	79,020	77,789
Substandard [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	12,549	12,031
Substandard [Member] | Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	25,046	19,451
Substandard [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,237	1,248
Substandard [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	2,517	2,351
Substandard [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	41,349	35,081
Substandard [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	34,943	38,654
Substandard [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,728	4,054
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	8
Doubtful [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Doubtful [Member] | Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Doubtful [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Doubtful [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Doubtful [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Doubtful [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	8
Doubtful [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Loss [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Loss [Member] | Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Loss [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Loss [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Loss [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	0	0
Loss [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Loss [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	6,763,331	6,342,690
Pass/Watch [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,193,379	1,236,571
Pass/Watch [Member] | Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,837,514	1,666,109
Pass/Watch [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	1,383,191	1,231,464
Pass/Watch [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	314,286	329,298
Pass/Watch [Member] | Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total mortgage loans	4,728,370	4,463,442
Pass/Watch [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,500,628	1,318,321
Pass/Watch [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 534,333	$ 560,927

Deposits (Schedule of Deposits)

Deposits (Schedule of Deposits) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Savings	$ 1,074,708	$ 985,478
Money market	1,586,397	1,468,352
NOW	1,908,250	1,540,894
Non-interest bearing	1,289,713	1,189,542
Certificates of deposit	668,430	739,721
Total deposits	$ 6,527,498	$ 5,923,987

Components of Net Periodic Be48

Components of Net Periodic Benefit Cost (Narrative) (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2006	Dec. 31, 2002
Compensation and Retirement Disclosure [Abstract]
Defined benefit plan age of attainment	21 years
Service period for employees of coverage age, years (at least)	1 year
Defined benefit plan, percentage vested	100.00%
Retiree benefits eliminated if less than service period, years (less than)		10 years	10 years
Defined benefit plan, contributions by employer	$ 0

Components of Net Periodic Be49

Components of Net Periodic Benefit Cost (Net Periodic Benefit Cost (Increase)) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Pension benefits [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	312	284	936	852
Expected return on plan assets	(612)	(632)	(1,836)	(1,898)
Amortization of prior service cost	0	0	0	0
Amortization of the net loss	236	193	708	581
Net periodic benefit (increase) cost	(64)	(155)	(192)	(465)
Other post-retirement benefits [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	37	42	112	126
Interest cost	285	280	854	842
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	0	0
Amortization of the net loss	0	0	0	0
Net periodic benefit (increase) cost	$ 322	$ 322	$ 966	$ 968

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Detail)	9 Months Ended
	Sep. 30, 2016
Minimum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated costs	6.00%
Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated costs	10.00%

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities Reported on Consolidated Statements of Financial Condition at Fair Values) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Securities available for sale:
Securities available for sale, at fair value	$ 1,032,235	$ 964,534
Derivative liabilities	20,400
Measured on a non-recurring basis:
Foreclosed assets	10,087	10,546
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	77,969	90,853
Derivative assets	0	0
Derivative liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	954,266	873,681
Derivative assets	18,641	6,854
Derivative liabilities	20,216	6,745
Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Derivative assets	0	0
Derivative liabilities	0	0
US Treasury Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	8,031	8,004
US Treasury Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	8,031	8,004
US Treasury Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
US Treasury Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Agency Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	69,390	82,330
Agency Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Agency Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Mortgage-Backed Securities [Member]
Securities available for sale:
Securities available for sale, at fair value	935,781	863,861
Mortgage-Backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Mortgage-Backed Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	935,781	863,861
Mortgage-Backed Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
State And Municipal Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	4,353	4,308
State And Municipal Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
State And Municipal Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	4,353	4,308
State And Municipal Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Corporate Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	14,132	5,512
Corporate Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Corporate Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	14,132	5,512
Corporate Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Equity Securities [Member]
Securities available for sale:
Securities available for sale, at fair value	548	519
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	548	519
Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member]
Securities available for sale:
Securities available for sale, at fair value	1,032,235	964,534
Derivative assets	18,641	6,854
Total assets at fair value	1,050,876	971,388
Derivative liabilities	20,216	6,745
Measured on a Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	77,969	90,853
Derivative assets	0	0
Total assets at fair value	77,969	90,853
Derivative liabilities	0	0
Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	954,266	873,681
Derivative assets	18,641	6,854
Total assets at fair value	972,907	880,535
Derivative liabilities	20,216	6,745
Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Derivative assets	0	0
Total assets at fair value	0	0
Derivative liabilities	0	0
Measured on a Recurring Basis [Member] | US Treasury Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	8,031	8,004
Measured on a Recurring Basis [Member] | US Treasury Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	8,031	8,004
Measured on a Recurring Basis [Member] | US Treasury Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | US Treasury Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Agency Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	69,390	82,330
Measured on a Recurring Basis [Member] | Agency Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	69,390	82,330
Measured on a Recurring Basis [Member] | Agency Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Agency Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Mortgage-Backed Securities [Member]
Securities available for sale:
Securities available for sale, at fair value	935,781	863,861
Measured on a Recurring Basis [Member] | Mortgage-Backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Mortgage-Backed Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	935,781	863,861
Measured on a Recurring Basis [Member] | Mortgage-Backed Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | State And Municipal Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	4,353	4,308
Measured on a Recurring Basis [Member] | State And Municipal Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | State And Municipal Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	4,353	4,308
Measured on a Recurring Basis [Member] | State And Municipal Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Corporate Obligations [Member]
Securities available for sale:
Securities available for sale, at fair value	14,132	5,512
Measured on a Recurring Basis [Member] | Corporate Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Corporate Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	14,132	5,512
Measured on a Recurring Basis [Member] | Corporate Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Equity Securities [Member]
Securities available for sale:
Securities available for sale, at fair value	548	519
Measured on a Recurring Basis [Member] | Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
Securities available for sale, at fair value	548	519
Measured on a Recurring Basis [Member] | Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Recurring Basis [Member] | Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
Securities available for sale, at fair value	0	0
Measured on a Non-Recurring Basis [Member]
Measured on a non-recurring basis:
Loans measured for impairment based on the fair value of the underlying collateral	9,100	9,481
Foreclosed assets		10,546
Fair value, Measured on a non-recurring basis	19,187	20,027
Measured on a Non-Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Measured on a non-recurring basis:
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Foreclosed assets	0	0
Fair value, Measured on a non-recurring basis	0	0
Measured on a Non-Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Measured on a non-recurring basis:
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Foreclosed assets	0	0
Fair value, Measured on a non-recurring basis	0	0
Measured on a Non-Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Measured on a non-recurring basis:
Loans measured for impairment based on the fair value of the underlying collateral	9,100	9,481
Foreclosed assets	10,087	10,546
Fair value, Measured on a non-recurring basis	$ 19,187	$ 20,027

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule of Financial Instruments at Carrying and Fair Values) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Financial assets:
Cash and cash equivalents	$ 159,674	$ 102,226	$ 128,433	$ 103,762
Securities available for sale, at fair value	1,032,235	964,534
Investment securities held to maturity:
Investment securities held to maturity	476,359	473,684
FHLBNY stock	71,019	78,181
Loans, net of allowance for loan losses	6,829,498	6,476,250
Financial liabilities:
Certificates of deposit	668,430	739,721
Total deposits	6,527,498	5,923,987
Borrowings	1,522,368	1,707,632
Derivative liabilities	20,400
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Cash and cash equivalents	159,674	102,226
Securities available for sale, at fair value	77,969	90,853
Investment securities held to maturity:
Investment securities held to maturity	2,688	4,097
FHLBNY stock	71,019	78,181
Loans, net of allowance for loan losses	0	0
Derivative assets	0	0
Financial liabilities:
Deposits other than certificates of deposits	5,859,068	5,184,266
Certificates of deposit	0	0
Total deposits	5,859,068	5,184,266
Borrowings	0	0
Derivative liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Cash and cash equivalents	0	0
Securities available for sale, at fair value	954,266	873,681
Investment securities held to maturity:
Investment securities held to maturity	492,828	484,234
FHLBNY stock	0	0
Loans, net of allowance for loan losses	0	0
Derivative assets	18,641	6,854
Financial liabilities:
Deposits other than certificates of deposits	0	0
Certificates of deposit	670,146	742,020
Total deposits	670,146	742,020
Borrowings	1,540,977	1,726,726
Derivative liabilities	20,216	6,745
Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Cash and cash equivalents	0	0
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
FHLBNY stock	0	0
Loans, net of allowance for loan losses	6,924,746	6,509,502
Derivative assets	0	0
Financial liabilities:
Deposits other than certificates of deposits	0	0
Certificates of deposit	0	0
Total deposits	0	0
Borrowings	0	0
Derivative liabilities	0	0
Carrying Value [Member]
Financial assets:
Cash and cash equivalents		102,226
Securities available for sale, at fair value	1,032,235	964,534
Investment securities held to maturity:
Investment securities held to maturity	476,359	473,684
FHLBNY stock		78,181
Loans, net of allowance for loan losses		6,476,250
Derivative assets	18,641	6,854
Financial liabilities:
Deposits other than certificates of deposits	5,859,068	5,184,266
Certificates of deposit	668,430	739,721
Total deposits	6,527,498	5,923,987
Borrowings	1,522,368	1,707,632
Derivative liabilities	20,216	6,745
Fair Value [Member]
Financial assets:
Cash and cash equivalents	159,674	102,226
Securities available for sale, at fair value	1,032,235	964,534
Investment securities held to maturity:
Investment securities held to maturity	495,516	488,331
FHLBNY stock	71,019	78,181
Loans, net of allowance for loan losses	6,924,746	6,509,502
Derivative assets	18,641	6,854
Financial liabilities:
Deposits other than certificates of deposits	5,859,068	5,184,266
Certificates of deposit	670,146	742,020
Total deposits	6,529,214	5,926,286
Borrowings	1,540,977	1,726,726
Derivative liabilities	20,216	6,745
US Treasury Obligations [Member]
Financial assets:
Securities available for sale, at fair value	8,031	8,004
US Treasury Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Securities available for sale, at fair value	8,031	8,004
US Treasury Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
US Treasury Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
US Treasury Obligations [Member] | Carrying Value [Member]
Financial assets:
Securities available for sale, at fair value	8,031	8,004
US Treasury Obligations [Member] | Fair Value [Member]
Financial assets:
Securities available for sale, at fair value	8,031	8,004
Agency Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Securities available for sale, at fair value	69,390	82,330
Investment securities held to maturity:
Investment securities held to maturity	2,688	4,097
Agency Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
Agency Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
Agency Obligations [Member] | Carrying Value [Member]
Financial assets:
Securities available for sale, at fair value	69,390	82,330
Investment securities held to maturity:
Investment securities held to maturity		4,096
Agency Obligations [Member] | Fair Value [Member]
Financial assets:
Securities available for sale, at fair value	69,390	82,330
Investment securities held to maturity:
Investment securities held to maturity		4,097
Mortgage-Backed Securities [Member]
Financial assets:
Securities available for sale, at fair value	935,781	863,861
Investment securities held to maturity:
Investment securities held to maturity	1,037	1,597
Mortgage-Backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
Mortgage-Backed Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Securities available for sale, at fair value	935,781	863,861
Investment securities held to maturity:
Investment securities held to maturity	1,079	1,658
Mortgage-Backed Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
Mortgage-Backed Securities [Member] | Carrying Value [Member]
Financial assets:
Securities available for sale, at fair value	935,781	863,861
Investment securities held to maturity:
Investment securities held to maturity		1,597
Mortgage-Backed Securities [Member] | Fair Value [Member]
Financial assets:
Securities available for sale, at fair value	935,781	863,861
Investment securities held to maturity:
Investment securities held to maturity		1,658
State And Municipal Obligations [Member]
Financial assets:
Securities available for sale, at fair value	4,353	4,308
Investment securities held to maturity:
Investment securities held to maturity	462,603	458,062
State And Municipal Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
State And Municipal Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Securities available for sale, at fair value	4,353	4,308
Investment securities held to maturity:
Investment securities held to maturity	481,694	472,661
State And Municipal Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
State And Municipal Obligations [Member] | Carrying Value [Member]
Financial assets:
Securities available for sale, at fair value	4,353	4,308
Investment securities held to maturity:
Investment securities held to maturity		458,062
State And Municipal Obligations [Member] | Fair Value [Member]
Financial assets:
Securities available for sale, at fair value	4,353	4,308
Investment securities held to maturity:
Investment securities held to maturity		472,661
Corporate Obligations [Member]
Financial assets:
Securities available for sale, at fair value	14,132	5,512
Investment securities held to maturity:
Investment securities held to maturity	10,031	9,929
Corporate Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
Corporate Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Securities available for sale, at fair value	14,132	5,512
Investment securities held to maturity:
Investment securities held to maturity	10,055	9,915
Corporate Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Investment securities held to maturity:
Investment securities held to maturity	0	0
Corporate Obligations [Member] | Carrying Value [Member]
Financial assets:
Securities available for sale, at fair value	14,132	5,512
Investment securities held to maturity:
Investment securities held to maturity		9,929
Corporate Obligations [Member] | Fair Value [Member]
Financial assets:
Securities available for sale, at fair value	14,132	5,512
Investment securities held to maturity:
Investment securities held to maturity		9,915
Equity Securities [Member]
Financial assets:
Securities available for sale, at fair value	548	519
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Securities available for sale, at fair value	548	519
Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Securities available for sale, at fair value	0	0
Equity Securities [Member] | Carrying Value [Member]
Financial assets:
Securities available for sale, at fair value	548	519
Equity Securities [Member] | Fair Value [Member]
Financial assets:
Securities available for sale, at fair value	$ 548	$ 519

Other Comprehensive Income (Com

Other Comprehensive Income (Components of Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income, before tax	$ (1,912)	$ 5,951	$ 14,238	$ 3,457
Total other comprehensive income (loss), tax effect	768	(2,390)	(5,718)	(1,388)
Total other comprehensive (loss) income	(1,144)	3,561	8,520	2,069
Unrealized gains on securities available for sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (losses) gains arising during the period, before tax	(2,575)	6,146	14,260	4,111
Reclassification adjustment for losses (gains) included in net income, before tax	43	0	(54)	(645)
Total other comprehensive (loss) income, before tax	(2,532)	6,146	14,206	3,466
Net (losses) gains arising during the period, tax effect	1,034	(2,468)	(5,727)	(1,651)
Reclassification adjustment for losses (gains) included in net income, tax effect	(17)	0	22	259
Total other comprehensive income (loss), tax effect	1,017	(2,468)	(5,705)	(1,392)
Net (losses) gains arising during the period, after tax	(1,541)	3,678	8,533	2,460
Reclassification adjustment for losses (gains) included in net income, after tax	26	0	(32)	(386)
Total other comprehensive (loss) income	(1,515)	3,678	8,501	2,074
Unrealized losses on derivatives (cash flow hedges) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income, before tax	384	(388)	(603)	(388)
Total other comprehensive income (loss), tax effect	(154)	156	242	156
Total other comprehensive (loss) income	230	(232)	(361)	(232)
Post-retirement obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income, before tax	236	193	635	379
Total other comprehensive income (loss), tax effect	(95)	(78)	(255)	(152)
Total other comprehensive (loss) income	$ 141	$ 115	$ 380	$ 227

Other Comprehensive Income (C54

Other Comprehensive Income (Components of Accumulated Other Comprehensive Income, Net of Tax) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			$ 1,196,065	$ 1,144,099
Current period other comprehensive (loss) income	$ (1,144)	$ 3,561	8,520	2,069
Ending Balance	1,244,280	1,183,973	1,244,280	1,183,973
Unrealized gains on securities available for sale [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	13,967	6,139	3,951	7,743
Current period other comprehensive (loss) income	(1,515)	3,678	8,501	2,074
Ending Balance	12,452	9,817	12,452	9,817
Post-retirement obligations [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6,185)	(7,602)	(6,424)	(7,714)
Current period other comprehensive (loss) income	141	115	380	227
Ending Balance	(6,044)	(7,487)	(6,044)	(7,487)
Unrealized losses on derivatives (cash flow hedges) [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(664)	0	(73)	0
Current period other comprehensive (loss) income	230	(232)	(361)	(232)
Ending Balance	(434)	(232)	(434)	(232)
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	7,118	(1,463)	(2,546)	29
Current period other comprehensive (loss) income	(1,144)	3,561	8,520	2,069
Ending Balance	$ 5,974	$ 2,098	$ 5,974	$ 2,098

Other Comprehensive Income (Rec

Other Comprehensive Income (Reclassifications Out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax expense	$ (9,281)	$ (9,034)	$ (26,798)	$ (27,027)
Net income	22,906	20,609	65,235	62,207
Unrealized gains on securities available for sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Compensation and employee benefits, amortization of actuarial losses (gains)	(43)	0	54	645
Income tax expense	17	0	(22)	(259)
Net of tax	(26)	0	32	386
Reclassification adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net of tax	115	115	456	734
Reclassification adjustment [Member] | Unrealized gains on securities available for sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net gain on securities transactions	(43)	0	54	645
Income tax expense	17	0	(22)	(259)
Net income	(26)	0	32	386
Reclassification adjustment [Member] | Post-retirement obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Compensation and employee benefits, amortization of actuarial losses (gains)	236	193	708	581
Income tax expense	(95)	(78)	(284)	(233)
Net of tax	$ 141	$ 115	$ 424	$ 348

Derivatives and Hedging Activ56

Derivatives and Hedging Activities (Narrative) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016USD ($)instrument	Dec. 31, 2015USD ($)instrument
Derivative [Line Items]
Derivative instruments in accumulated other comprehensive income reclassified to interest expense	$ 255
Derivative liability, notional amount	40,000
Derivative liabilities	20,400
Collateral against obligations	$ 21,100
Derivatives Not Designated as a Hedging Instruments [Member] | Interest rate products [Member]
Derivative [Line Items]
Number of derivative instruments held (in instrument) | instrument	34	23
Derivative notional amount	$ 549,500	$ 391,400
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Number of outstanding derivatives | instrument	1

Derivatives and Hedging Activ57

Derivatives and Hedging Activities (Fair Value of Derivatives) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Derivatives Not Designated as a Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 18,641	$ 6,854
Liability Derivatives	19,494	6,623
Derivatives Not Designated as a Hedging Instruments [Member] | Other Assets [Member] | Interest rate products [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	18,634	6,849
Derivatives Not Designated as a Hedging Instruments [Member] | Other Assets [Member] | Credit contracts [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	7	5
Derivatives Not Designated as a Hedging Instruments [Member] | Other Liabilities [Member] | Interest rate products [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	19,468	6,623
Derivatives Not Designated as a Hedging Instruments [Member] | Other Liabilities [Member] | Credit contracts [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	26	0
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	0	0
Liability Derivatives	722	122
Designated as Hedging Instrument [Member] | Other Assets [Member] | Interest rate products [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	0	0
Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest rate products [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 722	$ 122

Derivatives and Hedging Activ58

Derivatives and Hedging Activities (Gains and Losses on Derivatives) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivatives Not Designated as a Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives for the three months ended	$ (90)	$ (337)	$ (957)	$ 76
Derivatives Not Designated as a Hedging Instruments [Member] | Other income (expense) [Member] | Interest rate products [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives for the three months ended	(95)	(335)	(1,060)	75
Derivatives Not Designated as a Hedging Instruments [Member] | Other income (expense) [Member] | Credit contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives for the three months ended	5	(2)	103	1
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives for the three months ended	(129)	(55)	(366)	(55)
Designated as Hedging Instrument [Member] | Other income (expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives for the three months ended	$ (129)	$ (55)	$ (366)	$ (55)