Provident Financial Services (PFS) 10-Q 10 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 01, 2014
Document Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'PFS	'
Entity Registrant Name	'PROVIDENT FINANCIAL SERVICES INC	'
Entity Central Index Key	'0001178970	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	35,294,163

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$87,439	$100,053
Short-term investments	1,366	1,171
Total cash and cash equivalents	88,805	101,224
Securities available for sale, at fair value	1,110,323	1,157,594
Investment securities held to maturity (fair value of $471,173 at September 30, 2014 (unaudited) and $355,913 at December 31, 2013)	460,014	357,500
Federal Home Loan Bank stock	68,725	58,070
Loans	5,966,198	5,194,813
Less allowance for loan losses	63,330	64,664
Net loans	5,902,868	5,130,149
Foreclosed assets, net	6,334	5,486
Banking premises and equipment, net	96,558	66,448
Accrued interest receivable	24,189	22,956
Intangible assets	404,948	356,432
Bank-owned life insurance	176,307	150,511
Other assets	79,487	80,958
Total assets	8,418,558	7,487,328
Deposits:	'	'
Demand deposits	3,928,254	3,473,724
Savings deposits	983,831	921,993
Certificates of deposit of $100,000 or more	314,027	270,631
Other time deposits	501,841	536,123
Total deposits	5,727,953	5,202,471
Mortgage escrow deposits	21,544	20,376
Borrowed funds	1,490,983	1,203,879
Other liabilities	49,036	49,849
Total liabilities	7,289,516	6,476,575
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, 83,209,285 shares issued and 64,887,339 shares outstanding at September 30, 2014 (unaudited) and 59,917,649 outstanding at December 31, 2013	832	832
Additional paid-in capital	1,026,479	1,026,144
Retained earnings	452,152	427,763
Accumulated other comprehensive income (loss)	1,054	-4,851
Treasury stock	-304,864	-390,380
Unallocated common stock held by the Employee Stock Ownership Plan	-46,611	-48,755
Common stock acquired by the Directors’ Deferred Fee Plan	-7,136	-7,205
Deferred compensation – Directors’ Deferred Fee Plan	7,136	7,205
Total stockholders’ equity	1,129,042	1,010,753
Total liabilities and stockholders’ equity	$8,418,558	$7,487,328

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Investment securities held to maturity, fair value	$471,173	$355,913
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	83,209,285	83,209,285
Common stock, shares outstanding	64,887,339	59,917,649

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest income:	'	'	'	'
Real estate secured loans	$43,837	$38,238	$122,770	$114,158
Commercial loans	13,961	10,092	36,056	30,118
Consumer loans	6,106	5,918	17,637	17,750
Securities available for sale and Federal Home Loan Bank Stock	6,410	6,033	20,155	18,345
Investment securities held to maturity	3,323	2,694	8,899	8,300
Deposits, Federal funds sold and other short-term investments	15	9	44	30
Total interest income	73,652	62,984	205,561	188,701
Interest expense:	'	'	'	'
Deposits	4,054	4,354	11,479	13,917
Borrowed funds	6,629	4,633	18,511	13,481
Total interest expense	10,683	8,987	29,990	27,398
Net interest income	62,969	53,997	175,571	161,303
Provision for loan losses	1,500	1,200	3,400	3,700
Net interest income after provision for loan losses	61,469	52,797	172,171	157,603
Non-interest income:	'	'	'	'
Fees	8,512	9,792	22,986	26,070
Bank-owned life insurance	1,349	1,201	4,228	5,355
Net gain on securities transactions	487	40	247	974
Other income	961	697	2,291	1,913
Total non-interest income	11,309	11,730	29,752	34,312
Non-interest expense:	'	'	'	'
Compensation and employee benefits	24,947	21,106	69,921	62,103
Net occupancy expense	5,950	5,072	17,662	15,322
Data processing expense	5,029	2,644	10,587	7,913
FDIC insurance	1,141	1,073	3,421	3,547
Amortization of intangibles	976	318	1,778	1,345
Advertising and promotion expense	1,281	718	3,427	2,741
Other operating expenses	6,509	5,533	20,898	18,252
Total non-interest expense	45,833	36,464	127,694	111,223
Income before income tax expense	26,945	28,063	74,229	80,692
Income tax expense	7,913	11,987	21,817	27,560
Net income	$19,032	$16,076	$52,412	$53,132
Basic earnings per share (usd per share)	$0.30	$0.28	$0.88	$0.93
Weighted average basic shares outstanding (in shares)	62,440,310	57,241,270	59,670,773	57,205,175
Diluted earnings per share (usd per share)	$0.30	$0.28	$0.88	$0.93
Weighted average diluted shares outstanding (in shares)	62,559,207	57,357,344	59,804,205	57,279,935

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$19,032	$16,076	$52,412	$53,132
Unrealized gains and losses on securities available for sale:	'	'	'	'
Net unrealized (losses) gains arising during the period	-3,389	779	6,669	-13,403
Reclassification adjustment for gains included in net income	-288	-24	-146	-576
Total	-3,677	755	6,523	-13,979
Amortization related to post-retirement obligations	45	202	-618	663
Total other comprehensive (loss) income	-3,632	957	5,905	-13,316
Total comprehensive income	$15,400	$17,033	$58,317	$39,816

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	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 DDFP [Member]	Deferred Compensation DDFP [Member]
In Thousands
Balance at Dec. 31, 2012	$981,246	$832	$1,021,507	$389,549	$7,716	($386,270)	($52,088)	($7,298)	$7,298
Net income	53,132	'	'	53,132	'	'	'	'	'
Other comprehensive loss, net of tax	-13,316	'	'	'	-13,316	'	'	'	'
Cash dividends declared	-24,965	'	'	-24,965	'	'	'	'	'
Distributions from DDFP	0	'	'	'	'	'	'	70	-70
Purchases of treasury stock	-5,883	'	'	'	'	-5,883	'	'	'
Shares issued dividend reinvestment plan	901	'	-96	'	'	997	'	'	'
Stock option exercises	199	'	-76	'	'	275	'	'	'
Allocation of ESOP shares	1,956	'	-168	'	'	'	2,124	'	'
Allocation of SAP shares	3,212	'	3,212	'	'	'	'	'	'
Allocation of stock options	210	'	210	'	'	'	'	'	'
Balance at Sep. 30, 2013	996,692	832	1,024,589	417,716	-5,600	-390,881	-49,964	-7,228	7,228
Balance at Dec. 31, 2013	1,010,753	832	1,026,144	427,763	-4,851	-390,380	-48,755	7,205	-7,205
Net income	52,412	'	'	52,412	'	'	'	'	'
Other comprehensive loss, net of tax	5,905	'	'	'	5,905	'	'	'	'
Cash dividends declared	-28,023	'	'	-28,023	'	'	'	'	'
Distributions from DDFP	0	'	'	'	'	'	'	-69	69
Purchases of treasury stock	-4,401	'	'	'	'	-4,401	'	'	'
Treasury shares issued to finance acquisition	83,517	'	-962	'	'	84,479	'	'	'
Shares issued dividend reinvestment plan	1,019	'	0	'	'	1,019	'	'	'
Stock option exercises	144	'	-22	'	'	166	'	'	'
Allocation of ESOP shares	2,190	'	46	'	'	'	2,144	'	'
Allocation of SAP shares	5,301	'	5,301	'	'	'	'	'	'
Allocation of Treasury Shares	0	'	-4,253	'	'	4,253	'	'	'
Allocation of stock options	225	'	225	'	'	'	'	'	'
Balance at Sep. 30, 2014	$1,129,042	$832	$1,026,479	$452,152	$1,054	($304,864)	($46,611)	$7,136	($7,136)

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$52,412	$53,132
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization of intangibles	7,752	6,691
Provision for loan losses	3,400	3,700
Deferred tax expense	667	4,863
Increase in cash surrender value of Bank-owned life insurance	-4,228	-5,355
Net amortization of premiums and discounts on securities	7,701	10,482
Accretion of net deferred loan fees	-2,376	-2,957
Amortization of premiums on purchased loans, net	526	1,068
Net increase in loans originated for sale	-7,280	-20,539
Proceeds from sales of loans originated for sale	7,864	21,500
Proceeds from sales of foreclosed assets	4,580	10,998
ESOP expense	2,190	1,956
Allocation of stock award shares	5,049	3,562
Allocation of stock options	225	210
Net gain on sale of loans	-584	-961
Net gain on securities transactions	-247	-974
Net gain on sale of premises and equipment	-5	-42
Net gain on sale of foreclosed assets	-497	-18
Decrease in accrued interest receivable	1,828	2,700
Increase in other assets	-12,411	-7,008
Increase in other liabilities	1,501	575
Net cash provided by operating activities	68,067	83,583
Cash flows from investing activities:	'	'
Proceeds from maturities, calls and paydowns of investment securities held to maturity	36,062	77,817
Purchases of investment securities held to maturity	-58,192	-78,608
Proceeds from sales of securities	24,953	14,834
Proceeds from maturities, calls and paydowns of securities available for sale	157,765	298,894
Purchases of securities available for sale	-54,581	-227,101
Cash received, net of cash consideration paid for acquisition	68,650	0
Purchases of loans	-94,464	-22,005
Net increase in loans	-45,982	-160,914
Proceeds from sales of premises and equipment	5	35
Purchases of premises and equipment	-14,404	-6,623
Net cash provided by (used) in in investing activities	19,812	-103,671
Cash flows from financing activities:	'	'
Net decrease in deposits	-244,454	-172,598
Increase in mortgage escrow deposits	1,146	715
Purchases of treasury stock	-4,401	-5,883
Cash dividends paid to stockholders	-28,023	-24,965
Shares issued dividend reinvestment plan	1,019	901
Stock options exercised	144	199
Proceeds from long-term borrowings	404,334	215,000
Payments on long-term borrowings	-201,856	-52,193
Net (decrease) increase in short-term borrowings	-28,207	50,375
Net cash (used in) provided by financing activities	-100,298	11,551
Net decrease in cash and cash equivalents	-12,419	-8,537
Cash and cash equivalents at beginning of period	101,224	103,823
Cash and cash equivalents at end of period	88,805	95,286
Cash paid during the period for:	'	'
Interest on deposits and borrowings	29,910	27,532
Income taxes	19,742	21,321
Non-cash investing activities:	'	'
Transfer of loans receivable to foreclosed assets	4,535	6,408
Non-cash assets acquired:	'	'
Investment securities available for sale	157,635	0
Loans	631,209	0
Bank-owned life insurance	22,319	'
Goodwill and other intangible assets, net	50,222	0
Other assets	33,939	0
Total non-cash assets acquired	895,324	0
Liabilities assumed:	'	'
Deposits	769,936	0
Borrowings	112,835	0
Other Liabilities	-2,314	0
Total liabilities assumed	880,457	0
Common stock issued for acquisitions	$83,517	$0

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Note 1. 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, The 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 statements of financial condition and the results of operations 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, 2014 are not necessarily indicative of the results of operations that may be expected for all of 2014.
	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, 2013 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, 2014 and 2013 (dollars in thousands, except per share amounts):
		Three months ended September 30,
		2014					2013
		Net		Weighted	Per		Net		Weighted	Per
		Income		Average	Share		Income		Average	Share
				Common	Amount				Common	Amount
				Shares					Shares
				Outstanding					Outstanding
	Net income	$	19,032				$	16,076
	Basic earnings per share:
	Income available to common stockholders	$	19,032	62,440,310	$	0.3	$	16,076	57,241,270	$	0.28
	Dilutive shares			118,897					116,074
	Diluted earnings per share:
	Income available to common stockholders	$	19,032	62,559,207	$	0.3	$	16,076	57,357,344	$	0.28
		Nine months ended September 30,
		2014					2013
		Net		Weighted	Per		Net		Weighted	Per
		Income		Average	Share		Income		Average	Share
				Common	Amount				Common	Amount
				Shares					Shares
				Outstanding					Outstanding
	Net income	$	52,412				$	53,132
	Basic earnings per share:
	Income available to common stockholders	$	52,412	59,670,773	$	0.88	$	53,132	57,205,175	$	0.93
	Dilutive shares			133,432					74,760
	Diluted earnings per share:
	Income available to common stockholders	$	52,412	59,804,205	$	0.88	$	53,132	57,279,935	$	0.93
	Anti-dilutive stock options and awards totaling 1,099,371 shares at September 30, 2014, were excluded from the earnings per share calculations.

Business_Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Business Combinations	'
	Note 2. Business Combinations
	On May 30, 2014, the Company completed its acquisition of Team Capital Bank ("Team Capital"), which after purchase accounting adjustments added $964.0 million to total assets, $631.2 million to loans, and $769.9 million to deposits. Total consideration paid for Team Capital was $115.1 million: $31.6 million in cash and 4.9 million shares of common stock valued at $83.5 million on the acquisition date. Team Capital was merged with and into the Company's subsidiary, The Provident Bank as of the close of business on the date of acquisition.
	The transaction was accounted for under the acquisition method of accounting. Under this method of accounting, the purchase price has been allocated to the respective assets acquired and liabilities assumed based upon their estimated fair values, net of tax. The excess of consideration paid over the fair value of the net assets acquired has been recorded as goodwill.
	The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition from Team Capital, net of cash consideration paid (in thousands):
		At May 30, 2014
	Assets acquired:
	Cash and cash equivalents, net	$	68,650
	Securities available for sale	157,635
	Loans	631,209
	Bank-owned life insurance	22,319
	Banking premises and equipment	24,778
	Accrued interest receivable	3,060
	Goodwill	40,354
	Other intangibles assets	9,868
	Foreclosed assets, net	653
	Other assets	5,448
	Total assets acquired	963,974
	Liabilities assumed:
	Deposits	769,936
	Borrowed Funds	112,835
	Other liabilities	(2,314		)
	Total liabilities assumed	880,457
	Net assets acquired	$	83,517
	The calculation of goodwill is subject to change for up to one year after the date of acquisition as additional information relative to the closing date estimates and uncertainties become available. As the Company finalizes its review of the acquired assets and liabilities, certain adjustments to the recorded carrying values may be required.
	In the quarter ended September 30, 2014, the Company decreased the estimated fair value of the acquired loan portfolio by $181,000, to $631.2 million, from $631.4 million, with a corresponding increase to goodwill. This change in the estimated fair value of the loan portfolio was based upon a subsequent review of certain acquired loans and their respective cash flow characteristics at May 30, 2014, the date of acquisition of Team Capital.
	Fair Value Measurement of Assets Assumed and Liabilities Assumed
	The methods used to determine the fair value of the assets acquired and liabilities assumed in the Team Capital acquisition were as follows:
	Securities Available for Sale
	The estimated fair values of the investment securities classified as available for sale were calculated utilizing Level 1 and Level 2 inputs. Management reviewed the data and assumptions used by its third party provider in pricing the securities to ensure the highest level of significant inputs is derived from observable market data. These prices were validated against other pricing sources and broker-dealer indications.
	Loans
	The acquired loan portfolio was valued based on current guidance which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. Level 3 inputs were utilized to value the portfolio and included the use of present value techniques employing cash flow estimates and the incorporated assumptions that marketplace participants would use in estimating fair values. In instances where reliable market information was not available, the Company used its own assumptions in an effort to determine reasonable fair value. Specifically, Management utilized three separate fair value analyses which a market participant would employ in estimating the total fair value adjustment. The three separate fair valuation methodologies used were: 1) interest rate loan fair value analysis; 2) general credit fair value adjustment; and 3) specific credit fair value adjustment.
	To prepare the interest rate fair value analysis, loans were grouped by characteristics such as loan type, term, collateral and rate. Market rates for similar loans were obtained from various external data sources and reviewed by Company management for reasonableness. The average of these rates was used as the fair value interest rate a market participant would utilize. A present value approach was utilized to calculate the interest rate fair value adjustment.
	The general credit fair value adjustment was calculated using a two part general credit fair value analysis: 1) expected lifetime losses; and 2) estimated fair value adjustment for qualitative factors. The expected lifetime losses were calculated using an average of historical losses of the Company, the acquired bank and peer banks. The adjustment related to qualitative factors was impacted by general economic conditions and the risk related to lack of familiarity with the originator's underwriting process.
	To calculate the specific credit fair value adjustment, management reviewed the acquired loan portfolio for loans meeting the definition of an impaired loan with deteriorated credit quality. Loans meeting this definition were reviewed by comparing the contractual cash flows to expected collectible cash flows. The aggregate expected cash flows less the acquisition date fair value resulted in an accretable yield amount. The accretable yield amount will be recognized over the life of the loans on a level yield basis as an adjustment to yield.
	Deposits and Core Deposit Premium
	Core deposit premium represents the value assigned to demand, interest checking, money market and savings accounts acquired as part of an acquisition. The core deposit premium value represents the future economic benefit, including the present value of future tax benefits, of the potential cost savings from acquiring core deposits as part of an acquisition compared to the cost alternative funding sources and was valued utilizing Level 1 inputs.
	Time deposits are not considered to be core deposits as they are assumed to have a low expected average life upon acquisition. The fair value of time deposits represents the present value of the expected contractual payments discounted by market rates for similar time deposits and was valued utilizing Level 2 inputs.
	Borrowed Funds
	The fair value for borrowed funds was obtained from actual prepayment rates from the FHLB - Pittsburgh, a Level 2 input. These borrowings were redeemed after the acquisition date and the fair value adjustment was fully amortized in the quarter ended June 30, 2014.

Investment_Securities

Investment Securities	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investment Securities	'
	Note 3. Investment Securities
	At September 30, 2014, the Company had $1.11 billion and $460.0 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 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, 2014 totaled 261, compared with 346 at December 31, 2013. All securities with unrealized losses at September 30, 2014 were analyzed for other-than-temporary impairment. Based upon this analysis, no other-than-temporary impairment existed at September 30, 2014.
	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, 2014 and December 31, 2013 (in thousands):
		30-Sep-14
		Amortized		Gross		Gross		Fair
		cost		unrealized		unrealized		value
				gains		losses
	US Treasury obligations	$	8,018	—		(32	)	7,986
	Agency obligations	87,767		271		(94	)	87,944
	Mortgage-backed securities	991,369		13,259		(7,329	)	997,299
	State and municipal obligations	6,944		160		(7	)	7,097
	Corporate obligations	9,538		4		(57	)	9,485
	Equity securities	397		115		—		512
		$	1,104,033	13,809		(7,519	)	1,110,323
		31-Dec-13
		Amortized		Gross		Gross		Fair
		cost		unrealized		unrealized		value
				gains		losses
	Agency obligations	$	93,223	372		(179	)	93,416
	Mortgage-backed securities	1,060,013		14,493		(19,532	)	1,054,974
	State and municipal obligations	8,739		171		(152	)	8,758
	Equity securities	357		89		—		446
		$	1,162,332	15,125		(19,863	)	1,157,594
	The amortized cost and fair value of securities available for sale at September 30, 2014, 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.
		30-Sep-14
		Amortized		Fair
		cost		value
	Due in one year or less	$	27,678	27,813
	Due after one year through five years	78,579		78,711
	Due after five years through ten years	3,018		2,964
	Due after ten years	2,992		3,024
	Mortgage-backed securities	991,369		997,299
	Equity securities	397		512
		$	1,104,033	1,110,323
	During the three months ending September 30, 2014, proceeds from the sale of securities available for sale were $9,946,000 resulting in gross gains of $482,000 and no gross losses. For the same period last year, no securities were sold from the available for sale portfolio.
	For the nine months ended September 30, 2014, proceeds from the sale of securities available for sale were $24,429,000, resulting in gross gains of $632,000 and gross losses of $404,000. For the same period last year, proceeds from the sale of securities available for sale were $14,310,000, resulting in gross gains of $888,000 and no gross losses. Also, for the nine months ended September 30, 2014, proceeds from calls of securities available for sale totaled $740,000, resulting in gross gains of $2,000 gains and no gross losses. For the nine months ended September 30, 2013, proceeds from calls on securities available for sale totaled $896,000, with no gains or losses recognized.
	The following table presents a roll-forward of the credit loss component of other-than-temporary impairment (“OTTI”) on debt securities for which a non-credit component of OTTI was recognized in other comprehensive income. OTTI recognized in earnings for credit-impaired debt securities is presented in two components based upon whether the current period is the first time a debt security was credit-impaired (initial credit impairment), or whether the current period is not the first time a debt security was credit-impaired (subsequent credit impairment). Changes in the credit loss component of credit-impaired debt securities were as follows (in thousands):
		Three months ended September 30,				Nine months ended September 30,
		2014		2013		2014		2013
	Beginning credit loss amount	$	—	1,240		1,674		1,240
	Add: Initial OTTI credit losses	—		—		—		—
	Subsequent OTTI credit losses	—		—		—		—
	Less: Realized losses for securities sold	—		—		1,674		—
	Securities intended or required to be sold	—		—		—		—
	Increases in expected cash flows on debt securities	—		—		—		—
	Ending credit loss amount	$	—	1,240		—		1,240
	The Company did not incur an OTTI charge on securities for the three and nine months ended September 30, 2014 or 2013. For the nine months ended September 30, 2014, the Company realized a $59,000 gain and a $365,000 loss on the sales of previously impaired non-agency mortgage-backed securities, respectively. The Company previously incurred cumulative credit losses of $1.7 million on these securities.
	The following tables represent the Company’s disclosure regarding securities available for sale with temporary impairment at September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014 Unrealized Losses
		Less than 12 months				12 months or longer				Total
		Fair value		Gross		Fair		Gross		Fair	Gross
				unrealized		value		unrealized		value	unrealized
				losses				losses			losses
	US Treasury obligations	$	7,986	(32	)	—		—		7,986	(32	)
	Agency obligations	28,129		(50	)	4,992		(44	)	33,121	(94	)
	Mortgage-backed securities	174,267		(687	)	296,736		(6,642	)	471,003	(7,329	)
	State and municipal obligations	—		—		663		(7	)	663	(7	)
	Corporate obligations	4,985		(57	)	—		—		4,985	(57	)
		$	215,367	(826	)	302,391		(6,693	)	517,758	(7,519	)
		December 31, 2013 Unrealized Losses
		Less than 12 months				12 months or longer				Total
		Fair		Gross		Fair		Gross		Fair	Gross
value		unrealized		value		unrealized		value	unrealized
		losses				losses			losses
Agency obligations	$	34,355	(179	)	—		—		34,355	(179	)
Mortgage-backed securities	604,778		(18,850	)	13,521		(682	)	618,299	(19,532	)
State and municipal obligations	2,867		(152	)					2,867	(152	)
	$	642,000	(19,181	)	13,521		(682	)	655,521	(19,863	)
The temporary loss position associated with 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, 2014, 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, 2014 totaled 81, compared with 76 at December 31, 2013. At September 30, 2014, there were two private label mortgage-backed securities in an unrealized loss position, with an amortized cost of $2,039,000 and an unrealized loss of $6,000. These private label mortgage-backed securities were above investment grade at September 30, 2014.
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 other-than-temporary impairment existed during the three and nine months ended September 30, 2014. The Company concluded that no other-than-temporary impairment of the securities available for sale portfolio existed at September 30, 2014.
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, 2014 and December 31, 2013 (in thousands):
	30-Sep-14
	Amortized		Gross		Gross		Fair
	cost		unrealized		unrealized		value
			gains		losses
Agency obligations	$	7,108	20		(31	)	7,097
Mortgage-backed securities	3,239		146		—		3,385
State and municipal obligations	439,162		12,385		(1,361	)	450,186
Corporate obligations	10,505		38		(38	)	10,505
	$	460,014	12,589		(1,430	)	471,173
	31-Dec-13
	Amortized		Gross		Gross		Fair
	cost		unrealized		unrealized		value
			gains		losses
Agency obligations	$	7,523	13		(66	)	7,470
Mortgage-backed securities	5,273		247		—		5,520
State and municipal obligations	334,750		5,435		(7,198	)	332,987
Corporate obligations	9,954		58		(76	)	9,936
	$	357,500	5,753		(7,340	)	355,913
The Company generally purchases securities for long-term investment purposes, and differences between amortized cost and fair values may fluctuate during the investment period. For the three and nine months ended September 30, 2014, the Company recognized gross gains of $5,000 and $20,000, and no gross losses, respectively, related to calls of certain securities in the held to maturity portfolio, with proceeds from the calls totaling $3,566,000 and $12,376,000 for the three and nine months ended September 30, 2014, respectively. In addition, for the nine months ended September 30, 2014, the Company recognized a gross loss of $3,000 and no gross gain related to the sale of a security with proceeds of $524,000. The sale of this security was in response to the credit deterioration of the issuer.
For the three and nine months ended September 30, 2013, the Company recognized gains of $40,000 and $70,000, and gross losses of $0 and $2,000, respectively, related to calls of certain securities in the held to maturity portfolio, with proceeds from the calls totaling $19,635,000 and $42,113,000, respectively. In addition, for the nine months ended September 30, 2013, the Company recognized gross gains of $18,000, and no gross losses, related to the sales of certain securities, with the proceeds totaling $524,000. The sales of these securities were in response to the credit deterioration of the issuers. There were no sales of securities from the held to maturity portfolio for the three months ended September 30, 2013.
The amortized cost and fair value of investment securities in the held to maturity portfolio at September 30, 2014 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.
	30-Sep-14
	Amortized		Fair
	cost		value
Due in one year or less	$	6,814	6,863
Due after one year through five years	53,690		55,074
Due after five years through ten years	165,552		171,594
Due after ten years	230,719		234,257
Mortgage-backed securities	3,239		3,385
	$	460,014	471,173
The following tables represent the Company’s disclosure on investment securities held to maturity with temporary impairment at September 30, 2014 and December 31, 2013 (in thousands):
	September 30, 2014 Unrealized Losses
	Less than 12 months				12 months or longer				Total
	Fair		Gross		Fair		Gross		Fair	Gross
	value		unrealized		value		unrealized		value	unrealized
			losses				losses			losses
Agency obligations	$	1,166	(4	)	2,953		(27	)	4,119	(31	)
State and municipal obligations	28,109		(255	)	56,726		(1,106	)	84,835	(1,361	)
Corporate obligations	3,325		(13	)	2,802		(25	)	6,127	(38	)
	$	32,600	(272	)	62,481		(1,158	)	95,081	(1,430	)
	December 31, 2013 Unrealized Losses
	Less than 12 months				12 months or longer				Total
	Fair		Gross		Fair		Gross		Fair	Gross
	value		unrealized		value		unrealized		value	unrealized
			losses				losses			losses
Agency obligations	$	5,766	(66	)	—		—		5,766	(66	)
State and municipal obligations	123,988		(5,376	)	19,051		(1,822	)	143,039	(7,198	)
Corporate obligations	5,387		(76	)	—		—		5,387	(76	)
	$	135,141	(5,518	)	19,051		(1,822	)	154,192	(7,340	)
Based upon the review of the held to maturity securities portfolio, the Company believes that as of September 30, 2014, securities with unrealized loss positions shown above do not represent impairments that are other-than-temporary. The review of the portfolio for other-than-temporary impairment 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 securities in an unrealized loss position at September 30, 2014 totaled 180, compared with 270 at December 31, 2013. The decrease in the number of securities in an unrealized loss position at September 30, 2014, was largely due to a reduction in market interest rates from December 31, 2103. All temporarily impaired investment securities were investment grade at September 30, 2014.

Loans_Receivable_and_Allowance

Loans Receivable and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Loans Receivable and Allowance for Loan Losses	'
	Note 4. Loans Receivable and Allowance for Loan Losses
	Loans receivable at September 30, 2014 and December 31, 2013 are summarized as follows (in thousands):
			30-Sep-14				31-Dec-13
	Mortgage loans:
	Residential		$	1,236,566			1,174,043
	Commercial		1,687,132				1,400,624
	Multi-family		941,863				928,906
	Construction		235,700				183,289
	Total mortgage loans		4,101,261				3,686,862
	Commercial loans		1,249,480				932,199
	Consumer loans		612,765				577,602
	Total gross loans		5,963,506				5,196,663
	Purchased credit-impaired ("PCI") loans		4,511				—
	Premiums on purchased loans		4,895				4,202
	Unearned discounts		(54		)		(62	)
	Net deferred fees		(6,660		)		(5,990	)
			$	5,966,198			5,194,813
	The following tables summarize the aging of loans receivable by portfolio segment and class of loans, excluding PCI loans (in thousands):
			30-Sep-14
			30-59				60-89		Non-accrual		Total Past			Current			Total Loans			Recorded
			Days				Days				Due and						Receivable			Investment
											Non-accrual									> 90 days
																				accruing
	Mortgage loans:
	Residential		$	9,028			4,005		20,044		33,077			1,203,489			1,236,566			—
	Commercial		94				766		19,371		20,231			1,666,901			1,687,132			—
	Multi-family		—				—		403		403			941,460			941,863			—
	Construction		—				—		—		—			235,700			235,700			—
	Total mortgage loans		9,122				4,771		39,818		53,711			4,047,550			4,101,261			—
	Commercial loans		770				589		20,167		21,526			1,227,954			1,249,480			—
	Consumer loans		2,618				735		4,087		7,440			605,325			612,765			—
	Total loans		$	12,510			6,095		64,072		82,677			5,880,829			5,963,506			—
			31-Dec-13
			30-59				60-89		Non-accrual		Total Past			Current			Total Loans			Recorded
			Days				Days				Due and						Receivable			Investment
											Non-accrual									> 90 days
																				accruing
	Mortgage loans:
	Residential		$	10,639			5,062		23,011		38,712			1,135,331			1,174,043			—
	Commercial		687				318		18,662		19,667			1,380,957			1,400,624			—
	Multi-family		—				—		403		403			928,503			928,906			—
	Construction		—				—		8,448		8,448			174,841			183,289			—
	Total mortgage loans		11,326				5,380		50,524		67,230			3,619,632			3,686,862			—
	Commercial loans		305				77		22,228		22,610			909,589			932,199			—
	Consumer loans		2,474				2,194		3,928		8,596			569,006			577,602			—
	Total loans		$	14,105			7,651		76,680		98,436			5,098,227			5,196,663			—
	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 $64.1 million and $76.7 million at September 30, 2014 and December 31, 2013, respectively. Included in non-accrual loans were $12.9 million and $33.5 million of loans which were less than 90 days past due at September 30, 2014 and December 31, 2013, respectively. There were no loans 90 days or greater past due and still accruing interest at September 30, 2014, or December 31, 2013.
	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, 2014, there were 159 impaired loans totaling $93.5 million. Included in this total were 122 TDRs related to 118 borrowers totaling $56.0 million that were performing in accordance with their restructured terms and which continued to accrue interest at September 30, 2014. At December 31, 2013, there were 152 impaired loans totaling $106.4 million. Included in this total were 115 TDRs to 110 borrowers totaling $58.2 million that were performing in accordance with their restructured terms and which continued to accrue interest at December 31, 2013.
	The following table summarizes loans receivable by portfolio segment and impairment method, excluding PCI loans (in thousands):
			30-Sep-14
			Mortgage				Commercial		Consumer		Total Portfolio
			loans				loans		loans		Segments
	Individually evaluated for impairment		$	66,898			24,195		2,419		93,512
	Collectively evaluated for impairment		4,034,363				1,225,285		610,346		5,869,994
	Total		$	4,101,261			1,249,480		612,765		5,963,506
			31-Dec-13
			Mortgage				Commercial		Consumer		Total Portfolio
			loans				loans		loans		Segments
	Individually evaluated for impairment		$	75,839			28,210		2,321		106,370
	Collectively evaluated for impairment		3,611,023				903,989		575,281		5,090,293
Total		$	3,686,862			932,199		577,602		5,196,663
The allowance for loan losses is summarized by portfolio segment and impairment classification as follows (in thousands):
		30-Sep-14
		Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
		loans				loans		loans		Segments
Individually evaluated for impairment		$	4,432			3,741		117		8,290			—			8,290
Collectively evaluated for impairment		26,244				23,101		4,430		53,775			1,265			55,040
Total		$	30,676			26,842		4,547		62,065			1,265			63,330
		31-Dec-13
		Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
		loans				loans		loans		Segments
Individually evaluated for impairment		$	7,829			2,221		167		10,217			—			10,217
Collectively evaluated for impairment		26,315				21,886		4,762		52,963			1,484			54,447
		$	34,144			24,107		4,929		63,180			1,484			64,664
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, 2014 and 2013 and their balances immediately prior to the modification date and post-modification as of September 30, 2014 and 2013:
		For the three months ended
		30-Sep-14									30-Sep-13
Troubled Debt Restructuring		Number  of			Pre-Modification			Post-Modification			Number  of			Pre-Modification				Post-Modification
		Loans			Outstanding			Outstanding			Loans			Outstanding				Outstanding
					Recorded			Recorded  Investment						Recorded  Investment				Recorded  Investment
					Investment
		($ in thousands)
Mortgage loans:
Residential		4			$	742		$	774		5			$	726			$	686
Commercial		—			—			—			—			—				—
Total mortgage loans		4			742			774			5			726				686
Commercial loans		1			—			367			2			1,546				1,529
Consumer loans		2			393			165			1			344				344
Total restructured loans		7			$	1,135		$	1,306		8			$	2,616			$	2,559
		For the nine months ended
		September 30, 2014									September 30, 2013
Troubled Debt Restructuring		Number of			Pre-Modification			Post-Modification			Number of			Pre-Modification				Post-Modification
		Loans			Outstanding			Outstanding			Loans			Outstanding				Outstanding
					Recorded  Investment			Recorded Investment						Recorded  Investment				Recorded Investment
		($ in thousands)
Mortgage loans:
Residential		12			$	2,705		2,443			37			$	7,284			$	7,383
Commercial		1			865			866			1			330				305
Total mortgage loans		13			3,570			3,309			38			7,614				7,688
Commercial loans		2			300			665			2			1,546				1,529
Consumer loans		2			393			165			6			812				798
Total restructured loans		17			$	4,263		$	4,139		46			$	9,972			$	10,015
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, 2014 and 2013 exceeded the carrying amounts of such loans. As a result, there were no charge-offs recorded on collateral dependent impaired loans presented in the preceding tables for the three and nine months ended September 30, 2014 and 2013. The allowance for loan losses associated with the TDRs presented in the preceding tables totaled $117,000 and $229,000 for the three months ended September 30, 2014 and 2013, respectively, and were included in the allowance for loan losses for loans individually evaluated for impairment. For the nine months ended September 30, 2014 and 2013, the allowance for loan losses associated with the TDRs presented in the preceding tables totaled $426,000 and $848,000, respectively, and were included in the allowance for loan losses for loans individually evaluated for impairment.
For the three and nine months ended September 30, 2014, the TDRs presented in the preceding tables had a weighted average modified interest rate of approximately 5.50% and 4.90%, respectively, compared to a rate of 6.50% and 5.70% prior to modification, respectively. For the three and nine months ended September 30, 2013, the TDRs had weighted average modified interest rate of approximately 3.51% and 4.12%, respectively, compared to a rate of 6.79% and 6.04% prior to modification, respectively.
The following table presents loans modified as TDRs within the previous 12 months from September 30, 2014 and 2013, and for which there was a payment default (90 days or more past due) at the quarter ended September 30, 2014 and 2013.
		September 30, 2014							September 30, 2013
Troubled Debt Restructurings Subsequently Defaulted		Number of				Outstanding			Number of		Outstanding
		Loans				Recorded  Investment			Loans		Recorded  Investment
						($ in thousands)					($ in thousands)
Mortgage loans:
Residential		$	—			$	—		1		$	130
Total mortgage loans		—				—			1		130
Total restructured loans		$	—			$	—		1		$	130
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 Team Capital acquisition, $5.2 million of the loans purchased at May 30, 2014 were determined to be PCI loans. PCI loans are accounted for at fair value, based upon the present value of expected future cash flows, with no related allowance for loan losses.
The following table presents information regarding the estimates of the contractually required payments, the cash flows expected to be collected and the estimated fair value of the PCI loans acquired from Team Capital at May 30, 2014 (in thousands):
		30-May-14
Contractually required principal and interest		$	12,505
Contractual cash flows not expected to be collected (non-accretable discount)		(6,475		)
Expected cash flows to be collected at acquisition		6,030
Interest component of expected cash flows (accretable yield)		(810		)
Fair value of acquired loans		$	5,220
PCI loans declined $709,000 to $4.5 million at September 30, 2014, from $5.2 million at acquisition from Team Capital on May 30, 2014, largely due to the full repayment and greater than projected cash flows on certain PCI loans. This resulted in a $202,000 increase in interest income for the three and nine months ended September 30, 2014, due to the acceleration of accretable and non-accretable discount on these loans.
The following table summarizes the changes in the accretable yield for PCI loans during the three and nine months ended September 30, 2014 (in thousands):
	Three months ended				Nine months ended
	30-Sep-14				30-Sep-14
Beginning balance	$	773			$	—
Acquisition	—				810
Accretion	(314		)		(351		)
Reclassification from non-accretable difference	136				136
Ending balance	$	595			$	595
The activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2014 and 2013 was as follows (in thousands):
Three months ended September 30,		Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
		loans				loans		loans		Segments
2014
Balance at beginning of period		$	31,040			27,079		4,381		62,500			1,375			63,875
Provision charged to operations		54				1,114		442		1,610			(110	)		1,500
Recoveries of loans previously charged-off		120				404		172		696			—			696
Loans charged-off		(538		)		(1,755	)	(448	)	(2,741	)		—			(2,741	)
Balance at end of period		$	30,676			26,842		4,547		62,065			1,265			63,330
2013
Balance at beginning of period		$	30,670			23,810		4,473		58,953			8,052			67,005
Provision charged to operations		5,091				527		1,021		6,639			(5,439	)		1,200
Recoveries of loans previously charged-off		739				420		303		1,462			1			1,463
Loans charged-off		(1,097		)		(1,330	)	(1,233	)	(3,660	)		—			(3,660	)
Balance at end of period		$	35,403			23,427		4,564		63,394			2,614			66,008
Nine months ended September 30,		Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
		loans				loans		loans		Segments
2014
Balance at beginning of period		$	34,144			24,107		4,929		63,180			1,484			64,664
Provision charged to operations		(1,300		)		4,108		811		3,619			(219	)		3,400
Recoveries of loans previously charged-off		277				945		1,022		2,244			—			2,244
Loans charged-off		(2,445		)		(2,318	)	(2,215	)	(6,978	)		—			(6,978	)
Balance at end of period		$	30,676			26,842		4,547		62,065			1,265			63,330
2013
Balance at beginning of period		$	37,962			20,315		5,224		63,501			6,847			70,348
Provision charged to operations		1,479				4,775		1,679		7,933			(4,233	)		3,700
Recoveries of loans previously charged-off		1,082				734		809		2,625			—			2,625
Loans charged-off		(5,120		)		(2,397	)	(3,148	)	(10,665	)		—			(10,665	)
Balance at end of period		$	35,403			23,427		4,564		63,394			2,614			66,008
The unallocated portion of the allowance reflects uncertainties related to certain impaired loans where the appropriate allowance has been established using discounted cash flow analyses, but where management has given consideration to the potential collateral shortfall.
The following table presents loans individually evaluated for impairment by class and loan category, excluding PCI loans (in thousands):
		30-Sep-14														31-Dec-13
		Unpaid				Recorded		Related		Average			Interest			Unpaid			Recorded	Related	Average	Interest
		Principal				Investment		Allowance		Recorded			Income			Principal			Investment	Allowance	Recorded	Income
		Balance								Investment			Recognized			Balance					Investment	Recognized
Loans with no related allowance
Mortgage loans:
Residential		$	14,697			10,694		—		10,920			256			13,459			9,999	—	10,322	299
Commercial		5,284				5,011		—		5,023			4			4,917			4,667	—	4,834	3
Multi-family		—				—		—		—			—			—			—	—	—	—
Construction		—				—		—		—			—			—			—	—	—	—
Total		19,981				15,705		—		15,943			260			18,376			14,666	—	15,156	302
Commercial loans		4,989				3,966		—		4,141			5			8,163			6,674	—	8,252	24
Consumer loans		1,268				853		—		1,072			24			754			618	—	674	26
Total loans		$	26,238			20,524		—		21,156			289			27,293			21,958	—	24,082	352
Loans with an allowance recorded
Mortgage loans:
Residential		$	15,558			14,966		2,310		15,079			402			17,122			16,473	2,571	16,610	557
Commercial		37,465				36,227		2,122		36,455			725			37,320			36,251	2,309	36,727	976
Multi-family		—				—		—		—			—			—			—	—	—	—
Construction		—				—		—		—			—			9,810			8,449	2,949	8,659	—
Total		53,023				51,193		4,432		51,534			1,127			64,252			61,173	7,829	61,996	1,533
Commercial loans		21,928				20,229		3,741		21,216			307			22,779			21,536	2,221	23,204	650
Consumer loans		1,578				1,566		117		1,584			60			1,732			1,703	167	1,726	63
Total loans		$	76,529			72,988		8,290		74,334			1,494			88,763			84,412	10,217	86,926	2,246
Total impaired loans
Mortgage loans:
Residential		$	30,255			25,660		2,310		25,999			658			30,581			26,472	2,571	26,932	856
Commercial		42,749				41,238		2,122		41,478			729			42,237			40,918	2,309	41,561	979
Multi-family		—				—		—		—			—			—			—	—	—	—
Construction		—				—		—		—			—			9,810			8,449	2,949	8,659	—
Total		73,004				66,898		4,432		67,477			1,387			82,628			75,839	7,829	77,152	1,835
Commercial loans		26,917				24,195		3,741		25,357			312			30,942			28,210	2,221	31,456	674
Consumer loans		2,846				2,419		117		2,656			84			2,486			2,321	167	2,400	89
Total loans		$	102,767			93,512		8,290		95,490			1,783			116,056			106,370	10,217	111,008	2,598
Specific allocations of the allowance for loan losses attributable to impaired loans totaled $8,290,000 and $10,217,000 at September 30, 2014 and December 31, 2013, respectively. At September 30, 2014 and December 31, 2013, impaired loans for which there was no related allowance for loan losses totaled $20,524,000 and $21,958,000, respectively. The average balance of impaired loans during the nine months ended September 30, 2014 was $95,490,000.
The Company utilizes an internal nine-point risk rating system to summarize its loan portfolio into categories with similar characteristics. Loans deemed to be “acceptable quality” (pass) 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 department. The risk ratings are also confirmed through periodic loan review examinations which are currently performed by an independent third party. Reports concerning periodic loan review examinations by the independent third party are presented directly to both the Audit and Risk Committees of the Board of Directors.
Loans receivable by credit quality risk rating indicator, excluding PCI loans, are as follows (in thousands):
		At September 30, 2014
		Residential				Commercial		Multi-		Construction			Total			Commercial			Consumer	Total loans
						mortgage		family					mortgages
Special mention		$	4,005			16,272		857		2,600			23,734			72,959			736	97,429
Substandard		20,043				53,810		403		—			74,256			36,077			3,907	114,240
Doubtful		—				—		—		—			—			479			—	479
Loss		—				—		—		—			—			—			—	—
Total classified and criticized		24,048				70,082		1,260		2,600			97,990			109,515			4,643	212,148
Pass/Watch		1,212,518				1,617,050		940,603		233,100			4,003,271			1,139,965			608,122	5,751,358
Total		$	1,236,566			1,687,132		941,863		235,700			4,101,261			1,249,480			612,765	5,963,506
		At December 31, 2013
		Residential				Commercial		Multi-		Construction			Total			Commercial			Consumer	Total loans
						mortgage		family					mortgages
Special mention		$	5,062			15,301		—		—			20,363			28,551			2,037	50,951
Substandard		23,011				54,592		403		8,449			86,455			46,687			4,220	137,362
Doubtful		—				—		—		—			—			649			—	649
Loss		—				—		—		—			—			—			—	—
Total classified and criticized		28,073				69,893		403		8,449			106,818			75,887			6,257	188,962
Pass/Watch		1,145,970				1,330,731		928,503		174,840			3,580,044			856,312			571,345	5,007,701
Total		$	1,174,043			1,400,624		928,906		183,289			3,686,862			932,199			577,602	5,196,663

Deposits

Deposits	9 Months Ended
	Sep. 30, 2014
Banking and Thrift [Abstract]	'
Deposits	'
	Note 5. Deposits
	Deposits at September 30, 2014 and December 31, 2013 are summarized as follows (in thousands):
		30-Sep-14		31-Dec-13
	Savings	$	983,831	921,993
	Money market	1,553,155		1,281,596
	NOW	1,357,343		1,326,941
	Non-interest bearing	1,017,756		865,187
	Certificates of deposit	815,868		806,754
	Total	$	5,727,953	5,202,471

Components_of_Net_Periodic_Ben

Components of Net Periodic Benefit Cost	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Components of Net Periodic Benefit Cost	'
	Note 6. Components of Net Periodic Benefit Cost
	The Bank has a noncontributory defined benefit pension plan (the “Plan”) covering its full-time employees who had attained age 21 with at least one year of service as of April 1, 2003, the date on which the Plan was frozen. All participants in the Plan are 100% vested. The Plan’s assets are invested in investment funds and group annuity contracts currently managed by the Principal Financial Group and Allmerica Financial.
	In an effort to lower and reduce the volatility of its future pension costs, the Company offered a lump sum pension distribution option to its vested terminated employees in the quarter ended June 30, 2014. For the nine months ended September 30, 2014, the Plan paid $4.3 million to those employees that elected to receive lump sum pension distributions and the Company realized an associated charge of $1.3 million. This charge was a pro rata share of the unrecognized losses recorded in other comprehensive income.
	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 became 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 10 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 10 years of service as of December 31, 2006.
	Net periodic (increase) benefit cost for pension benefits and other post-retirement benefits for the three and nine months ended September 30, 2014 and 2013 includes the following components (in thousands):
		Three months ended September 30,									Nine months ended September 30,
		Pension					Other post-				Pension					Other post-
		benefits					retirement				benefits					retirement
							benefits									benefits
		2014			2013		2014		2013		2014			2013		2014		2013
	Service cost	$	—		—		42		60		$	—		—		126		180
	Interest cost	284			318		272		245		988			954		816		735
	Expected return on plan assets	(837		)	(792	)	—		—		(2,625		)	(2,376	)	—		—
	Amortization of prior service cost	—			—		(1	)	(1	)	—			—		(3	)	(3	)
	Amortization of the net loss	127			338		(51	)	4		313			1,014		(153	)	12
	Net periodic benefit (increase) cost	$	(426	)	(136	)	262		308		$	(1,324	)	(408	)	786		924
	In its consolidated financial statements for the year ended December 31, 2013, the Company previously disclosed that it does not expect to contribute to the Plan in 2014. As of September 30, 2014, no contributions have been made to the Plan.
	The net periodic benefit cost (increase) for pension benefits and other post-retirement benefits for the three and nine months ended September 30, 2014 were calculated using the actual January 1, 2014 pension valuation and the other post-retirement benefits valuations.

Impact_of_Recent_Accounting_Pr

Impact of Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]	'
Impact of Recent Accounting Pronouncements	'
	Note 7. Impact of Recent Accounting Pronouncements
	In August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-14, “Receivables - Troubled Debt Restructurings by Creditors: Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure.” The amendments in this update affect creditors that hold government guaranteed mortgage loans, including those guaranteed by the Federal Housing Administration and the U.S. Department of Veterans Affairs. The amendments in this update require that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met (i) the loan has a government guarantee that is not separable from the loan before foreclosure, (ii) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim, and (iii) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The amendments in this update are effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. The Company does not anticipate a significant impact to the consolidated financial statements related to this guidance. The Company will comply with the provisions of this guidance upon its effective date and, if applicable, record a separate other receivable for foreclosed government guaranteed mortgage loans.
	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 Company does not expect that the adoption of this guidance will 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 is prohibited. The Company is currently assessing the impact that the adoption of this update will have on its consolidated financial statements and disclosures.
	In January 2014, the FASB issued ASU No. 2014-04, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure,” which clarifies that an in-substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure, or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, this ASU requires interim and annual disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. ASU No. 2014-04 is effective for annual and interim periods beginning after December 15, 2014. The Company’s adoption of ASU No. 2014-04 is not expected to have a significant impact on its consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Note 8. 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, 2014 and December 31, 2013.
	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 to 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. Currently, none of the Company’s derivatives are designated in qualifying hedging relationships. 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 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, 2014 and December 31, 2013.
	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 of up to 6%. The Company classifies these loans as Level 3 within the fair value hierarchy.
	Assets acquired through foreclosure or deed in lieu of foreclosure are carried at fair value, less estimated selling costs of up to 6%. 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, 2014 and December 31, 2013.
	The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair values as of September 30, 2014 and December 31, 2013, by level within the fair value hierarchy:
		Fair Value Measurements at Reporting Date Using:
	(Dollars in thousands)	30-Sep-14		Quoted Prices in	Significant Other	Significant
				Active  Markets for	Observable  Inputs	Unobservable
				Identical Assets	(Level 2)	Inputs (Level 3)
				(Level 1)
	Measured on a recurring basis:
	Securities available for sale:
	US Treasury obligations	$	7,986	7,986	—	—
	Agency obligations	87,944		87,944	—	—
	Mortgage-backed securities	997,299		—	997,299	—
	State and municipal obligations	7,097		—	7,097	—
	Corporate obligations	9,485		—	9,485	—
	Equity securities	512		512	—	—
	Total securities available for sale	1,110,323		96,442	1,013,881	—
	Asset derivatives	864		—	864	—
		$	1,111,187	96,442	1,014,745	—
	Liability derivatives	$	845	—	845	—
	Measured on a non-recurring basis:
	Loans measured for impairment based on the fair value of the underlying collateral	$	26,338	—	—	26,338
	Foreclosed assets	6,334		—	—	6,334
		$	32,672	—	—	32,672
		Fair Value Measurements at Reporting Date Using:
	(Dollars in thousands)	31-Dec-13		Quoted Prices in	Significant Other	Significant
				Active  Markets for	Observable  Inputs	Unobservable
				Identical Assets	(Level 2)	Inputs (Level 3)
				(Level 1)
	Measured on a recurring basis:
	Securities available for sale:
	Agency obligations	$	93,416	93,416	—	—
	Mortgage-backed securities	1,054,974		—	1,054,974	—
	State and municipal obligations	8,758		—	8,758	—
	Equity securities	446		446	—	—
		$	1,157,594	93,862	1,063,732	—
	Measured on a non-recurring basis:
	Loans measured for impairment based on the fair value of the underlying collateral	$	29,782	—	—	29,782
	Foreclosed assets	5,486		—	—	5,486
		$	35,268	—	—	35,268
	There were no transfers between Level 1 and Level 2 during the three and nine months ended September 30, 2014.
	Other Fair Value Disclosures
	The Company is required to disclose 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.
FHLB-NY Stock
The carrying value of FHLB-NY stock was its cost. The fair value of FHLB-NY 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, 2014 and December 31, 2013. Fair values are presented by level within the fair value hierarchy.
			Fair Value Measurements at September 30, 2014 Using:
(Dollars in thousands)	Carrying		Fair	Quoted Prices in	Significant  Other			Significant
	value		value	Active  Markets for	Observable  Inputs			Unobservable
				Identical Assets	(Level 2)			Inputs (Level 3)
				(Level 1)
Financial assets:
Cash and cash equivalents	$	88,805	88,805	88,805	—			—
Securities available for sale:
US Treasury obligations	7,986		7,986	7,986	—			—
Agency obligations	87,944		87,944	87,944	—			—
Mortgage-backed securities	997,299		997,299	—	997,299			—
State and municipal obligations	7,097		7,097	—	7,097			—
Corporate obligations	9,485		9,485	—	9,485			—
Equity securities	512		512	512	—			—
Total securities available for sale	$	1,110,323	1,110,323	96,442	1,013,881			—
Investment securities held to maturity:
Agency obligations	7,108		7,097	7,097	—			—
Mortgage-backed securities	3,239		3,385	—	3,385			—
State and municipal obligations	439,162		450,186	—	450,186			—
Corporate obligations	10,505		10,505	—	10,505			—
Total securities held to maturity	$	460,014	471,173	7,097	464,076			—
FHLB-NY stock	68,725		68,725	68,725	—			—
Loans, net of allowance for loan losses	5,902,868		6,001,942	—	—			6,001,942
Asset derivative	864		864	—	864			—
Financial liabilities:
Deposits other than certificates of deposits	$	4,912,085	4,912,085	4,912,085	—			—
Certificates of deposit	815,868		822,299	—	822,299			—
Total deposits	5,727,953		5,734,384	4,912,085	822,299			—
Borrowings	1,490,983		1,497,921	—	1,497,921			—
Liability derivative	$	845	845	—	845	845,000		—
			Fair Value Measurements at December 31, 2013 Using:
(Dollars in thousands)	Carrying		Fair	Quoted Prices in	Significant  Other		Significant
	value		value	Active  Markets for	Observable  Inputs		Unobservable
				Identical Assets	(Level 2)		Inputs (Level 3)
				(Level 1)
Financial assets:
Cash and cash equivalents	$	101,224	101,224	101,224	—		—
Securities available for sale:
Agency obligations	93,416		93,416	93,416	—		—
Mortgage-backed securities	1,054,974		1,054,974	—	1,054,974		—
State and municipal obligations	8,758		8,758	—	8,758		—
Equity securities	446		446	446	—		—
Total securities available for sale	$	1,157,594	1,157,594	93,862	1,063,732		—
Investment securities held to maturity:
Agency obligations	$	7,523	7,470	7,470	—		—
Mortgage-backed securities	5,273		5,520	—	5,520		—
State and municipal obligations	334,750		332,987	—	332,987		—
Corporate obligations	9,954		9,936	—	9,936		—
Total securities held to maturity	$	357,500	355,913	7,470	348,443		—
FHLB-NY stock	58,070		58,070	58,070	—		—
Loans, net of allowance for loan losses	5,130,149		5,221,228	—	—		5,221,228
Financial liabilities:
Deposits other than certificates of deposits	$	4,395,717	4,395,717	4,395,717	—		—
Certificates of deposit	806,754		813,337	—	813,337		—
Total deposits	5,202,471		5,209,054	4,395,717	813,337		—
Borrowings	$	1,203,879	1,218,136	—	1,218,136		—

Other_Comprehensive_Income_Los

Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Other Comprehensive Income (Loss)	'
	Note 9. 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, 2014 and 2013 (in thousands):
			Three months ended September 30,
			2014								2013
			Before			Tax			After		Before			Tax			After
			Tax			Effect			Tax		Tax			Effect			Tax
	Components of Other Comprehensive (Loss) Income:
	Unrealized gains and losses on securities available for sale:
	Net (losses) gains arising during the period		$	(5,200	)	1,811			(3,389	)	1,318			(539	)		779
	Reclassification adjustment for gains included in net income		(487		)	199			(288	)	(40	)		16			(24	)
	Total		(5,687		)	2,010			(3,677	)	1,278			(523	)		755
	Amortization related to post-retirement obligations		76			(31	)		45		342			(140	)		202
	Total other comprehensive (loss) income		$	(5,611	)	1,979			(3,632	)	1,620			(663	)		957
			Nine months ended September 30,
			2014								2013
			Before			Tax			After		Before			Tax			After
			Tax			Effect			Tax		Tax			Effect			Tax
	Components of Other Comprehensive Income (Loss):
	Unrealized gains and losses on securities available for sale:
	Net gains (losses) arising during the period		$	11,275		(4,606	)		6,669		(22,659	)		9,256			(13,403	)
	Reclassification adjustment for gains included in net income		(247		)	101			(146	)	(974	)		398			(576	)
	Total		11,028			(4,505	)		6,523		(23,633	)		9,654			(13,979	)
	Amortization related to post-retirement obligations		(1,045		)	427			(618	)	1,121			(458	)		663
	Total other comprehensive income (loss) income		$	9,983		(4,078	)		5,905		(22,512	)		9,196			(13,316	)
	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, 2014 and 2013 (in thousands):
			Changes in Accumulated Other Comprehensive Income by Component, net of tax
			For the three months ended September 30,
			2014								2013
			Unrealized			Post  Retirement			Accumulated		Unrealized			Post  Retirement			Accumulated
			Gains on Securities			Obligations			Other		Gains on Securities			Obligations			Other
			Available for						Comprehensive		Available for						Comprehensive
			Sale						Income		Sale						Income
	Balance at June 30,		$	7,401		(2,715	)		4,686		2,227			(8,784	)		(6,557	)
	Current period change in other comprehensive income (loss)		(3,677		)	45			(3,632	)	755			202			957
	Balance at September 30,		$	3,724		(2,670	)		1,054		2,982			(8,582	)		(5,600	)
			Changes in Accumulated Other Comprehensive Income by Component, net of tax
			For the nine months ended September 30,
			2014								2013
			Unrealized			Post Retirement			Accumulated		Unrealized				Post Retirement			Accumulated
			Gains on Securities			Obligations			Other		Gains on Securities				Obligations			Other
			Available for						Comprehensive		Available for							Comprehensive
			Sale						Income		Sale							Income
	Balance at December 31,		$	(2,799	)	(2,052	)		(4,851	)	$	16,961			(9,245	)		7,716
	Current period change in other comprehensive income (loss)		6,523			(618	)		5,905		(13,979		)		663			(13,316	)
	Balance at September 30,		$	3,724		(2,670	)		1,054		$	2,982			(8,582	)		(5,600	)
	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, 2014 and 2013 (in thousands):
			Reclassifications Out of Accumulated Other Comprehensive
			Income ("AOCI")
			Amount reclassified from AOCI for the three months ended September 30,							Affected line item in the Consolidated
			2014			2013				Statement of Income
	Details of AOCI:
	Securities available for sale:
	Realized net gains on the sale of securities available for sale		$	487		$	40			Net gain on securities transactions
			(199		)	(16		)		Income tax expense
			288			24				Net of tax
	Post retirement obligations:
	Amortization of actuarial losses (gains)		76			342				Compensation and employee benefits (1)
			(31		)	(140		)		Income tax expense
			45			202				Net of tax
	Total reclassifications		$	333		$	226			Net of tax
			Reclassifications Out of Accumulated Other Comprehensive
			Income
			Amount reclassified from AOCI for the nine months ended September 30,							Affected line item in the Consolidated
		2014			2013				Statement of Income
Details of AOCI:
Securities available for sale:
Realized net gains on the sale of securities available for sale		$	247		$	974			Net (loss) gain on securities transactions
		(101		)	(398		)		Income tax expense
		146			576				Net of tax
Post retirement obligations:
Amortization of actuarial losses (gains)		160			1,026				Compensation and employee benefits (1)
		(65		)	(419		)		Income tax expense
		95			607				Net of tax
Realized loss related to lump sum pension settlement		(1,336		)	—				Compensation and employee benefits
		546			—				Income tax expense
		(790		)	—				Net of tax
Total reclassifications		$	(1,030	)	$	1,183			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_Activi

Derivatives and Hedging Activities	9 Months Ended
	Sep. 30, 2014
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. The Company’s 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. The Company manages a matched book with respect to its derivative instruments in order to minimize its net risk exposure resulting from such transactions.
	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 as of September 30, 2014 (in thousands):
		As of September 30, 2014
		Asset Derivatives				Liability Derivatives
		Consolidated Statements of Financial Condition	Fair			Consolidated Statements of Financial Condition	Fair
			Value				Value
	Derivatives not designated as a hedging instruments:
	Interest rate products	Other assets	$	859		Other liabilities	$	845
	Credit contracts	Other assets	5				—
	Total derivatives not designated as hedging instruments		$	864			$	845
	None of the Company’s derivatives are designated in qualifying hedging relationships. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers, which the Company implemented during 2014. 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. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. As of September 30, 2014, the Company had six interest rate swaps with an aggregate notional amount of $60.6 million related to this program.
	The tables below present the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the quarter ended September 30, 2014 (in thousands).
			Gain (loss) recognized in Income on derivatives
		Consolidated Statements of Income	Three months ended
			30-Sep-14
	Derivatives not designated as a hedging instruments:
	Interest rate products	Other income	$	27
	Credit contracts	Other income	(1		)
	Total		$	26
	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.
	The Company also 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, 2014, the termination value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was $860,000. The Company has minimum collateral posting thresholds with certain of its derivative counterparties, and has posted collateral of $590,000 against its obligations under these agreements. If the Company had breached any of these provisions at September 30, 2014, it could have been required to settle its obligations under the agreements at the termination value.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
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, The 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 statements of financial condition and the results of operations 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, 2014 are not necessarily indicative of the results of operations that may be expected for all of 2014.
	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, 2013 Annual Report to Stockholders on Form 10-K.
Earnings Per Share	'
	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, 2014 and 2013 (dollars in thousands, except per share amounts):
		Three months ended September 30,
		2014					2013
		Net		Weighted	Per		Net		Weighted	Per
		Income		Average	Share		Income		Average	Share
				Common	Amount				Common	Amount
				Shares					Shares
				Outstanding					Outstanding
	Net income	$	19,032				$	16,076
	Basic earnings per share:
	Income available to common stockholders	$	19,032	62,440,310	$	0.3	$	16,076	57,241,270	$	0.28
	Dilutive shares			118,897					116,074
	Diluted earnings per share:
	Income available to common stockholders	$	19,032	62,559,207	$	0.3	$	16,076	57,357,344	$	0.28
		Nine months ended September 30,
		2014					2013
		Net		Weighted	Per		Net		Weighted	Per
		Income		Average	Share		Income		Average	Share
				Common	Amount				Common	Amount
				Shares					Shares
				Outstanding					Outstanding
	Net income	$	52,412				$	53,132
	Basic earnings per share:
	Income available to common stockholders	$	52,412	59,670,773	$	0.88	$	53,132	57,205,175	$	0.93
	Dilutive shares			133,432					74,760
	Diluted earnings per share:
	Income available to common stockholders	$	52,412	59,804,205	$	0.88	$	53,132	57,279,935	$	0.93
	Anti-dilutive stock options and awards totaling 1,099,371 shares at September 30, 2014, were excluded from the earnings per share calculations.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and 2013 (dollars in thousands, except per share amounts):
		Three months ended September 30,
		2014					2013
		Net		Weighted	Per		Net		Weighted	Per
		Income		Average	Share		Income		Average	Share
				Common	Amount				Common	Amount
				Shares					Shares
				Outstanding					Outstanding
	Net income	$	19,032				$	16,076
	Basic earnings per share:
	Income available to common stockholders	$	19,032	62,440,310	$	0.3	$	16,076	57,241,270	$	0.28
	Dilutive shares			118,897					116,074
	Diluted earnings per share:
	Income available to common stockholders	$	19,032	62,559,207	$	0.3	$	16,076	57,357,344	$	0.28
		Nine months ended September 30,
		2014					2013
		Net		Weighted	Per		Net		Weighted	Per
		Income		Average	Share		Income		Average	Share
				Common	Amount				Common	Amount
				Shares					Shares
				Outstanding					Outstanding
	Net income	$	52,412				$	53,132
	Basic earnings per share:
	Income available to common stockholders	$	52,412	59,670,773	$	0.88	$	53,132	57,205,175	$	0.93
	Dilutive shares			133,432					74,760
	Diluted earnings per share:
	Income available to common stockholders	$	52,412	59,804,205	$	0.88	$	53,132	57,279,935	$	0.93

Business_Combinations_Tables

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Summary of the estimated fair values of assets acquired and the liabilities assumed	'
	The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition from Team Capital, net of cash consideration paid (in thousands):
		At May 30, 2014
	Assets acquired:
	Cash and cash equivalents, net	$	68,650
	Securities available for sale	157,635
	Loans	631,209
	Bank-owned life insurance	22,319
	Banking premises and equipment	24,778
	Accrued interest receivable	3,060
	Goodwill	40,354
	Other intangibles assets	9,868
	Foreclosed assets, net	653
	Other assets	5,448
	Total assets acquired	963,974
	Liabilities assumed:
	Deposits	769,936
	Borrowed Funds	112,835
	Other liabilities	(2,314		)
	Total liabilities assumed	880,457
	Net assets acquired	$	83,517

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and December 31, 2013 (in thousands):
		30-Sep-14
		Amortized		Gross		Gross		Fair
		cost		unrealized		unrealized		value
				gains		losses
	US Treasury obligations	$	8,018	—		(32	)	7,986
	Agency obligations	87,767		271		(94	)	87,944
	Mortgage-backed securities	991,369		13,259		(7,329	)	997,299
	State and municipal obligations	6,944		160		(7	)	7,097
	Corporate obligations	9,538		4		(57	)	9,485
	Equity securities	397		115		—		512
		$	1,104,033	13,809		(7,519	)	1,110,323
		31-Dec-13
		Amortized		Gross		Gross		Fair
		cost		unrealized		unrealized		value
				gains		losses
	Agency obligations	$	93,223	372		(179	)	93,416
	Mortgage-backed securities	1,060,013		14,493		(19,532	)	1,054,974
	State and municipal obligations	8,739		171		(152	)	8,758
	Equity securities	357		89		—		446
		$	1,162,332	15,125		(19,863	)	1,157,594
Roll-Forward of Credit Loss Component of Other-Than-Temporary Impairment	'
	Changes in the credit loss component of credit-impaired debt securities were as follows (in thousands):
		Three months ended September 30,				Nine months ended September 30,
		2014		2013		2014		2013
	Beginning credit loss amount	$	—	1,240		1,674		1,240
	Add: Initial OTTI credit losses	—		—		—		—
	Subsequent OTTI credit losses	—		—		—		—
	Less: Realized losses for securities sold	—		—		1,674		—
	Securities intended or required to be sold	—		—		—		—
	Increases in expected cash flows on debt securities	—		—		—		—
	Ending credit loss amount	$	—	1,240		—		1,240
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, 2014 and December 31, 2013 (in thousands):
		30-Sep-14
		Amortized		Gross		Gross		Fair
		cost		unrealized		unrealized		value
				gains		losses
	Agency obligations	$	7,108	20		(31	)	7,097
	Mortgage-backed securities	3,239		146		—		3,385
	State and municipal obligations	439,162		12,385		(1,361	)	450,186
	Corporate obligations	10,505		38		(38	)	10,505
		$	460,014	12,589		(1,430	)	471,173
		31-Dec-13
		Amortized		Gross		Gross		Fair
		cost		unrealized		unrealized		value
				gains		losses
	Agency obligations	$	7,523	13		(66	)	7,470
	Mortgage-backed securities	5,273		247		—		5,520
	State and municipal obligations	334,750		5,435		(7,198	)	332,987
	Corporate obligations	9,954		58		(76	)	9,936
		$	357,500	5,753		(7,340	)	355,913
Available-for-sale Securities [Member]	'
Investment Securities Classified by Contractual Maturity	'
	The amortized cost and fair value of securities available for sale at September 30, 2014, 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.
		30-Sep-14
		Amortized		Fair
		cost		value
	Due in one year or less	$	27,678	27,813
	Due after one year through five years	78,579		78,711
	Due after five years through ten years	3,018		2,964
	Due after ten years	2,992		3,024
	Mortgage-backed securities	991,369		997,299
	Equity securities	397		512
		$	1,104,033	1,110,323
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, 2014 and December 31, 2013 (in thousands):
		September 30, 2014 Unrealized Losses
		Less than 12 months				12 months or longer				Total
		Fair value		Gross		Fair		Gross		Fair	Gross
				unrealized		value		unrealized		value	unrealized
				losses				losses			losses
	US Treasury obligations	$	7,986	(32	)	—		—		7,986	(32	)
	Agency obligations	28,129		(50	)	4,992		(44	)	33,121	(94	)
	Mortgage-backed securities	174,267		(687	)	296,736		(6,642	)	471,003	(7,329	)
	State and municipal obligations	—		—		663		(7	)	663	(7	)
	Corporate obligations	4,985		(57	)	—		—		4,985	(57	)
		$	215,367	(826	)	302,391		(6,693	)	517,758	(7,519	)
		December 31, 2013 Unrealized Losses
		Less than 12 months				12 months or longer				Total
		Fair		Gross		Fair		Gross		Fair	Gross
		value		unrealized		value		unrealized		value	unrealized
				losses				losses			losses
	Agency obligations	$	34,355	(179	)	—		—		34,355	(179	)
	Mortgage-backed securities	604,778		(18,850	)	13,521		(682	)	618,299	(19,532	)
	State and municipal obligations	2,867		(152	)					2,867	(152	)
		$	642,000	(19,181	)	13,521		(682	)	655,521	(19,863	)
Held-to-maturity Securities [Member]	'
Investment Securities Classified by Contractual Maturity	'
	The amortized cost and fair value of investment securities in the held to maturity portfolio at September 30, 2014 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.
		30-Sep-14
		Amortized		Fair
		cost		value
	Due in one year or less	$	6,814	6,863
	Due after one year through five years	53,690		55,074
	Due after five years through ten years	165,552		171,594
	Due after ten years	230,719		234,257
	Mortgage-backed securities	3,239		3,385
		$	460,014	471,173
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, 2014 and December 31, 2013 (in thousands):
		September 30, 2014 Unrealized Losses
		Less than 12 months				12 months or longer				Total
		Fair		Gross		Fair		Gross		Fair	Gross
		value		unrealized		value		unrealized		value	unrealized
				losses				losses			losses
	Agency obligations	$	1,166	(4	)	2,953		(27	)	4,119	(31	)
	State and municipal obligations	28,109		(255	)	56,726		(1,106	)	84,835	(1,361	)
	Corporate obligations	3,325		(13	)	2,802		(25	)	6,127	(38	)
		$	32,600	(272	)	62,481		(1,158	)	95,081	(1,430	)
		December 31, 2013 Unrealized Losses
		Less than 12 months				12 months or longer				Total
		Fair		Gross		Fair		Gross		Fair	Gross
		value		unrealized		value		unrealized		value	unrealized
				losses				losses			losses
	Agency obligations	$	5,766	(66	)	—		—		5,766	(66	)
	State and municipal obligations	123,988		(5,376	)	19,051		(1,822	)	143,039	(7,198	)
	Corporate obligations	5,387		(76	)	—		—		5,387	(76	)
		$	135,141	(5,518	)	19,051		(1,822	)	154,192	(7,340	)

Loans_Receivable_and_Allowance1

Loans Receivable and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Schedule of Summarized Loans Receivable	'
	Loans receivable at September 30, 2014 and December 31, 2013 are summarized as follows (in thousands):
			30-Sep-14				31-Dec-13
	Mortgage loans:
	Residential		$	1,236,566			1,174,043
	Commercial		1,687,132				1,400,624
	Multi-family		941,863				928,906
	Construction		235,700				183,289
	Total mortgage loans		4,101,261				3,686,862
	Commercial loans		1,249,480				932,199
	Consumer loans		612,765				577,602
	Total gross loans		5,963,506				5,196,663
	Purchased credit-impaired ("PCI") loans		4,511				—
	Premiums on purchased loans		4,895				4,202
	Unearned discounts		(54		)		(62	)
	Net deferred fees		(6,660		)		(5,990	)
			$	5,966,198			5,194,813
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):
			30-Sep-14
			30-59				60-89		Non-accrual		Total Past			Current			Total Loans			Recorded
			Days				Days				Due and						Receivable			Investment
											Non-accrual									> 90 days
																				accruing
	Mortgage loans:
	Residential		$	9,028			4,005		20,044		33,077			1,203,489			1,236,566			—
	Commercial		94				766		19,371		20,231			1,666,901			1,687,132			—
	Multi-family		—				—		403		403			941,460			941,863			—
	Construction		—				—		—		—			235,700			235,700			—
	Total mortgage loans		9,122				4,771		39,818		53,711			4,047,550			4,101,261			—
	Commercial loans		770				589		20,167		21,526			1,227,954			1,249,480			—
	Consumer loans		2,618				735		4,087		7,440			605,325			612,765			—
	Total loans		$	12,510			6,095		64,072		82,677			5,880,829			5,963,506			—
			31-Dec-13
			30-59				60-89		Non-accrual		Total Past			Current			Total Loans			Recorded
			Days				Days				Due and						Receivable			Investment
											Non-accrual									> 90 days
																				accruing
	Mortgage loans:
	Residential		$	10,639			5,062		23,011		38,712			1,135,331			1,174,043			—
	Commercial		687				318		18,662		19,667			1,380,957			1,400,624			—
	Multi-family		—				—		403		403			928,503			928,906			—
	Construction		—				—		8,448		8,448			174,841			183,289			—
	Total mortgage loans		11,326				5,380		50,524		67,230			3,619,632			3,686,862			—
	Commercial loans		305				77		22,228		22,610			909,589			932,199			—
	Consumer loans		2,474				2,194		3,928		8,596			569,006			577,602			—
	Total loans		$	14,105			7,651		76,680		98,436			5,098,227			5,196,663			—
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):
			30-Sep-14
			Mortgage				Commercial		Consumer		Total Portfolio
			loans				loans		loans		Segments
	Individually evaluated for impairment		$	66,898			24,195		2,419		93,512
	Collectively evaluated for impairment		4,034,363				1,225,285		610,346		5,869,994
	Total		$	4,101,261			1,249,480		612,765		5,963,506
			31-Dec-13
			Mortgage				Commercial		Consumer		Total Portfolio
			loans				loans		loans		Segments
	Individually evaluated for impairment		$	75,839			28,210		2,321		106,370
	Collectively evaluated for impairment		3,611,023				903,989		575,281		5,090,293
	Total		$	3,686,862			932,199		577,602		5,196,663
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):
			30-Sep-14
			Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
			loans				loans		loans		Segments
	Individually evaluated for impairment		$	4,432			3,741		117		8,290			—			8,290
	Collectively evaluated for impairment		26,244				23,101		4,430		53,775			1,265			55,040
	Total		$	30,676			26,842		4,547		62,065			1,265			63,330
			31-Dec-13
			Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
			loans				loans		loans		Segments
	Individually evaluated for impairment		$	7,829			2,221		167		10,217			—			10,217
	Collectively evaluated for impairment		26,315				21,886		4,762		52,963			1,484			54,447
			$	34,144			24,107		4,929		63,180			1,484			64,664
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, 2014 and 2013 and their balances immediately prior to the modification date and post-modification as of September 30, 2014 and 2013:
			For the three months ended
			30-Sep-14									30-Sep-13
	Troubled Debt Restructuring		Number  of			Pre-Modification			Post-Modification			Number  of			Pre-Modification				Post-Modification
			Loans			Outstanding			Outstanding			Loans			Outstanding				Outstanding
						Recorded			Recorded  Investment						Recorded  Investment				Recorded  Investment
						Investment
			($ in thousands)
	Mortgage loans:
	Residential		4			$	742		$	774		5			$	726			$	686
	Commercial		—			—			—			—			—				—
	Total mortgage loans		4			742			774			5			726				686
	Commercial loans		1			—			367			2			1,546				1,529
	Consumer loans		2			393			165			1			344				344
	Total restructured loans		7			$	1,135		$	1,306		8			$	2,616			$	2,559
			For the nine months ended
			September 30, 2014									September 30, 2013
	Troubled Debt Restructuring		Number of			Pre-Modification			Post-Modification			Number of			Pre-Modification				Post-Modification
			Loans			Outstanding			Outstanding			Loans			Outstanding				Outstanding
						Recorded  Investment			Recorded Investment						Recorded  Investment				Recorded Investment
			($ in thousands)
	Mortgage loans:
	Residential		12			$	2,705		2,443			37			$	7,284			$	7,383
	Commercial		1			865			866			1			330				305
	Total mortgage loans		13			3,570			3,309			38			7,614				7,688
	Commercial loans		2			300			665			2			1,546				1,529
	Consumer loans		2			393			165			6			812				798
	Total restructured loans		17			$	4,263		$	4,139		46			$	9,972			$	10,015
Schedule of Troubled Debt Restructurings Subsequently Defaulted	'
	The following table presents loans modified as TDRs within the previous 12 months from September 30, 2014 and 2013, and for which there was a payment default (90 days or more past due) at the quarter ended September 30, 2014 and 2013.
			September 30, 2014							September 30, 2013
	Troubled Debt Restructurings Subsequently Defaulted		Number of				Outstanding			Number of		Outstanding
			Loans				Recorded  Investment			Loans		Recorded  Investment
							($ in thousands)					($ in thousands)
	Mortgage loans:
	Residential		$	—			$	—		1		$	130
	Total mortgage loans		—				—			1		130
	Total restructured loans		$	—			$	—		1		$	130
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period	'
	The following table presents information regarding the estimates of the contractually required payments, the cash flows expected to be collected and the estimated fair value of the PCI loans acquired from Team Capital at May 30, 2014 (in thousands):
			30-May-14
	Contractually required principal and interest		$	12,505
	Contractual cash flows not expected to be collected (non-accretable discount)		(6,475		)
	Expected cash flows to be collected at acquisition		6,030
	Interest component of expected cash flows (accretable yield)		(810		)
	Fair value of acquired loans		$	5,220
	The following table summarizes the changes in the accretable yield for PCI loans during the three and nine months ended September 30, 2014 (in thousands):
		Three months ended				Nine months ended
		30-Sep-14				30-Sep-14
	Beginning balance	$	773			$	—
	Acquisition	—				810
	Accretion	(314		)		(351		)
	Reclassification from non-accretable difference	136				136
	Ending balance	$	595			$	595
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, 2014 and 2013 was as follows (in thousands):
	Three months ended September 30,		Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
			loans				loans		loans		Segments
	2014
	Balance at beginning of period		$	31,040			27,079		4,381		62,500			1,375			63,875
	Provision charged to operations		54				1,114		442		1,610			(110	)		1,500
	Recoveries of loans previously charged-off		120				404		172		696			—			696
	Loans charged-off		(538		)		(1,755	)	(448	)	(2,741	)		—			(2,741	)
	Balance at end of period		$	30,676			26,842		4,547		62,065			1,265			63,330
	2013
	Balance at beginning of period		$	30,670			23,810		4,473		58,953			8,052			67,005
	Provision charged to operations		5,091				527		1,021		6,639			(5,439	)		1,200
	Recoveries of loans previously charged-off		739				420		303		1,462			1			1,463
	Loans charged-off		(1,097		)		(1,330	)	(1,233	)	(3,660	)		—			(3,660	)
	Balance at end of period		$	35,403			23,427		4,564		63,394			2,614			66,008
	Nine months ended September 30,		Mortgage				Commercial		Consumer		Total Portfolio			Unallocated			Total
			loans				loans		loans		Segments
	2014
	Balance at beginning of period		$	34,144			24,107		4,929		63,180			1,484			64,664
	Provision charged to operations		(1,300		)		4,108		811		3,619			(219	)		3,400
	Recoveries of loans previously charged-off		277				945		1,022		2,244			—			2,244
	Loans charged-off		(2,445		)		(2,318	)	(2,215	)	(6,978	)		—			(6,978	)
	Balance at end of period		$	30,676			26,842		4,547		62,065			1,265			63,330
	2013
	Balance at beginning of period		$	37,962			20,315		5,224		63,501			6,847			70,348
	Provision charged to operations		1,479				4,775		1,679		7,933			(4,233	)		3,700
	Recoveries of loans previously charged-off		1,082				734		809		2,625			—			2,625
	Loans charged-off		(5,120		)		(2,397	)	(3,148	)	(10,665	)		—			(10,665	)
	Balance at end of period		$	35,403			23,427		4,564		63,394			2,614			66,008
Summary of Impaired Loans Receivable by Class	'
	by class and loan category, excluding PCI loans (in thousands):
			30-Sep-14														31-Dec-13
			Unpaid				Recorded		Related		Average			Interest			Unpaid			Recorded	Related	Average	Interest
			Principal				Investment		Allowance		Recorded			Income			Principal			Investment	Allowance	Recorded	Income
			Balance								Investment			Recognized			Balance					Investment	Recognized
	Loans with no related allowance
	Mortgage loans:
	Residential		$	14,697			10,694		—		10,920			256			13,459			9,999	—	10,322	299
	Commercial		5,284				5,011		—		5,023			4			4,917			4,667	—	4,834	3
	Multi-family		—				—		—		—			—			—			—	—	—	—
	Construction		—				—		—		—			—			—			—	—	—	—
	Total		19,981				15,705		—		15,943			260			18,376			14,666	—	15,156	302
	Commercial loans		4,989				3,966		—		4,141			5			8,163			6,674	—	8,252	24
	Consumer loans		1,268				853		—		1,072			24			754			618	—	674	26
	Total loans		$	26,238			20,524		—		21,156			289			27,293			21,958	—	24,082	352
	Loans with an allowance recorded
	Mortgage loans:
	Residential		$	15,558			14,966		2,310		15,079			402			17,122			16,473	2,571	16,610	557
	Commercial		37,465				36,227		2,122		36,455			725			37,320			36,251	2,309	36,727	976
	Multi-family		—				—		—		—			—			—			—	—	—	—
	Construction		—				—		—		—			—			9,810			8,449	2,949	8,659	—
	Total		53,023				51,193		4,432		51,534			1,127			64,252			61,173	7,829	61,996	1,533
	Commercial loans		21,928				20,229		3,741		21,216			307			22,779			21,536	2,221	23,204	650
	Consumer loans		1,578				1,566		117		1,584			60			1,732			1,703	167	1,726	63
	Total loans		$	76,529			72,988		8,290		74,334			1,494			88,763			84,412	10,217	86,926	2,246
	Total impaired loans
	Mortgage loans:
	Residential		$	30,255			25,660		2,310		25,999			658			30,581			26,472	2,571	26,932	856
	Commercial		42,749				41,238		2,122		41,478			729			42,237			40,918	2,309	41,561	979
	Multi-family		—				—		—		—			—			—			—	—	—	—
	Construction		—				—		—		—			—			9,810			8,449	2,949	8,659	—
	Total		73,004				66,898		4,432		67,477			1,387			82,628			75,839	7,829	77,152	1,835
	Commercial loans		26,917				24,195		3,741		25,357			312			30,942			28,210	2,221	31,456	674
	Consumer loans		2,846				2,419		117		2,656			84			2,486			2,321	167	2,400	89
	Total loans		$	102,767			93,512		8,290		95,490			1,783			116,056			106,370	10,217	111,008	2,598
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, 2014
			Residential				Commercial		Multi-		Construction			Total			Commercial			Consumer	Total loans
							mortgage		family					mortgages
	Special mention		$	4,005			16,272		857		2,600			23,734			72,959			736	97,429
	Substandard		20,043				53,810		403		—			74,256			36,077			3,907	114,240
	Doubtful		—				—		—		—			—			479			—	479
	Loss		—				—		—		—			—			—			—	—
	Total classified and criticized		24,048				70,082		1,260		2,600			97,990			109,515			4,643	212,148
	Pass/Watch		1,212,518				1,617,050		940,603		233,100			4,003,271			1,139,965			608,122	5,751,358
	Total		$	1,236,566			1,687,132		941,863		235,700			4,101,261			1,249,480			612,765	5,963,506
			At December 31, 2013
			Residential				Commercial		Multi-		Construction			Total			Commercial			Consumer	Total loans
							mortgage		family					mortgages
	Special mention		$	5,062			15,301		—		—			20,363			28,551			2,037	50,951
	Substandard		23,011				54,592		403		8,449			86,455			46,687			4,220	137,362
	Doubtful		—				—		—		—			—			649			—	649
	Loss		—				—		—		—			—			—			—	—
	Total classified and criticized		28,073				69,893		403		8,449			106,818			75,887			6,257	188,962
	Pass/Watch		1,145,970				1,330,731		928,503		174,840			3,580,044			856,312			571,345	5,007,701
	Total		$	1,174,043			1,400,624		928,906		183,289			3,686,862			932,199			577,602	5,196,663

Deposits_Tables

Deposits (Tables)	9 Months Ended
	Sep. 30, 2014
Banking and Thrift [Abstract]	'
Schedule of Deposits	'
	Deposits at September 30, 2014 and December 31, 2013 are summarized as follows (in thousands):
		30-Sep-14		31-Dec-13
	Savings	$	983,831	921,993
	Money market	1,553,155		1,281,596
	NOW	1,357,343		1,326,941
	Non-interest bearing	1,017,756		865,187
	Certificates of deposit	815,868		806,754
	Total	$	5,727,953	5,202,471

Components_of_Net_Periodic_Ben1

Components of Net Periodic Benefit Cost (Tables)	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Net Periodic Benefit Cost (Increase)	'
	Net periodic (increase) benefit cost for pension benefits and other post-retirement benefits for the three and nine months ended September 30, 2014 and 2013 includes the following components (in thousands):
		Three months ended September 30,									Nine months ended September 30,
		Pension					Other post-				Pension					Other post-
		benefits					retirement				benefits					retirement
							benefits									benefits
		2014			2013		2014		2013		2014			2013		2014		2013
	Service cost	$	—		—		42		60		$	—		—		126		180
	Interest cost	284			318		272		245		988			954		816		735
	Expected return on plan assets	(837		)	(792	)	—		—		(2,625		)	(2,376	)	—		—
	Amortization of prior service cost	—			—		(1	)	(1	)	—			—		(3	)	(3	)
	Amortization of the net loss	127			338		(51	)	4		313			1,014		(153	)	12
	Net periodic benefit (increase) cost	$	(426	)	(136	)	262		308		$	(1,324	)	(408	)	786		924

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and December 31, 2013, by level within the fair value hierarchy:
		Fair Value Measurements at Reporting Date Using:
	(Dollars in thousands)	30-Sep-14		Quoted Prices in	Significant Other	Significant
				Active  Markets for	Observable  Inputs	Unobservable
				Identical Assets	(Level 2)	Inputs (Level 3)
				(Level 1)
	Measured on a recurring basis:
	Securities available for sale:
	US Treasury obligations	$	7,986	7,986	—	—
	Agency obligations	87,944		87,944	—	—
	Mortgage-backed securities	997,299		—	997,299	—
	State and municipal obligations	7,097		—	7,097	—
	Corporate obligations	9,485		—	9,485	—
	Equity securities	512		512	—	—
	Total securities available for sale	1,110,323		96,442	1,013,881	—
	Asset derivatives	864		—	864	—
		$	1,111,187	96,442	1,014,745	—
	Liability derivatives	$	845	—	845	—
	Measured on a non-recurring basis:
	Loans measured for impairment based on the fair value of the underlying collateral	$	26,338	—	—	26,338
	Foreclosed assets	6,334		—	—	6,334
		$	32,672	—	—	32,672
		Fair Value Measurements at Reporting Date Using:
	(Dollars in thousands)	31-Dec-13		Quoted Prices in	Significant Other	Significant
				Active  Markets for	Observable  Inputs	Unobservable
				Identical Assets	(Level 2)	Inputs (Level 3)
				(Level 1)
	Measured on a recurring basis:
	Securities available for sale:
	Agency obligations	$	93,416	93,416	—	—
	Mortgage-backed securities	1,054,974		—	1,054,974	—
	State and municipal obligations	8,758		—	8,758	—
	Equity securities	446		446	—	—
		$	1,157,594	93,862	1,063,732	—
	Measured on a non-recurring basis:
	Loans measured for impairment based on the fair value of the underlying collateral	$	29,782	—	—	29,782
	Foreclosed assets	5,486		—	—	5,486
		$	35,268	—	—	35,268
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, 2014 and December 31, 2013. Fair values are presented by level within the fair value hierarchy.
				Fair Value Measurements at September 30, 2014 Using:
	(Dollars in thousands)	Carrying		Fair	Quoted Prices in	Significant  Other			Significant
		value		value	Active  Markets for	Observable  Inputs			Unobservable
					Identical Assets	(Level 2)			Inputs (Level 3)
					(Level 1)
	Financial assets:
	Cash and cash equivalents	$	88,805	88,805	88,805	—			—
	Securities available for sale:
	US Treasury obligations	7,986		7,986	7,986	—			—
	Agency obligations	87,944		87,944	87,944	—			—
	Mortgage-backed securities	997,299		997,299	—	997,299			—
	State and municipal obligations	7,097		7,097	—	7,097			—
	Corporate obligations	9,485		9,485	—	9,485			—
	Equity securities	512		512	512	—			—
	Total securities available for sale	$	1,110,323	1,110,323	96,442	1,013,881			—
	Investment securities held to maturity:
	Agency obligations	7,108		7,097	7,097	—			—
	Mortgage-backed securities	3,239		3,385	—	3,385			—
	State and municipal obligations	439,162		450,186	—	450,186			—
	Corporate obligations	10,505		10,505	—	10,505			—
	Total securities held to maturity	$	460,014	471,173	7,097	464,076			—
	FHLB-NY stock	68,725		68,725	68,725	—			—
	Loans, net of allowance for loan losses	5,902,868		6,001,942	—	—			6,001,942
	Asset derivative	864		864	—	864			—
	Financial liabilities:
	Deposits other than certificates of deposits	$	4,912,085	4,912,085	4,912,085	—			—
	Certificates of deposit	815,868		822,299	—	822,299			—
	Total deposits	5,727,953		5,734,384	4,912,085	822,299			—
	Borrowings	1,490,983		1,497,921	—	1,497,921			—
	Liability derivative	$	845	845	—	845	845,000		—
				Fair Value Measurements at December 31, 2013 Using:
	(Dollars in thousands)	Carrying		Fair	Quoted Prices in	Significant  Other		Significant
		value		value	Active  Markets for	Observable  Inputs		Unobservable
					Identical Assets	(Level 2)		Inputs (Level 3)
					(Level 1)
	Financial assets:
	Cash and cash equivalents	$	101,224	101,224	101,224	—		—
	Securities available for sale:
	Agency obligations	93,416		93,416	93,416	—		—
	Mortgage-backed securities	1,054,974		1,054,974	—	1,054,974		—
	State and municipal obligations	8,758		8,758	—	8,758		—
	Equity securities	446		446	446	—		—
	Total securities available for sale	$	1,157,594	1,157,594	93,862	1,063,732		—
	Investment securities held to maturity:
	Agency obligations	$	7,523	7,470	7,470	—		—
	Mortgage-backed securities	5,273		5,520	—	5,520		—
	State and municipal obligations	334,750		332,987	—	332,987		—
	Corporate obligations	9,954		9,936	—	9,936		—
	Total securities held to maturity	$	357,500	355,913	7,470	348,443		—
	FHLB-NY stock	58,070		58,070	58,070	—		—
	Loans, net of allowance for loan losses	5,130,149		5,221,228	—	—		5,221,228
	Financial liabilities:
	Deposits other than certificates of deposits	$	4,395,717	4,395,717	4,395,717	—		—
	Certificates of deposit	806,754		813,337	—	813,337		—
	Total deposits	5,202,471		5,209,054	4,395,717	813,337		—
	Borrowings	$	1,203,879	1,218,136	—	1,218,136		—

Other_Comprehensive_Income_Los1

Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and 2013 (in thousands):
			Three months ended September 30,
			2014								2013
			Before			Tax			After		Before			Tax			After
			Tax			Effect			Tax		Tax			Effect			Tax
	Components of Other Comprehensive (Loss) Income:
	Unrealized gains and losses on securities available for sale:
	Net (losses) gains arising during the period		$	(5,200	)	1,811			(3,389	)	1,318			(539	)		779
	Reclassification adjustment for gains included in net income		(487		)	199			(288	)	(40	)		16			(24	)
	Total		(5,687		)	2,010			(3,677	)	1,278			(523	)		755
	Amortization related to post-retirement obligations		76			(31	)		45		342			(140	)		202
	Total other comprehensive (loss) income		$	(5,611	)	1,979			(3,632	)	1,620			(663	)		957
			Nine months ended September 30,
			2014								2013
			Before			Tax			After		Before			Tax			After
			Tax			Effect			Tax		Tax			Effect			Tax
	Components of Other Comprehensive Income (Loss):
	Unrealized gains and losses on securities available for sale:
	Net gains (losses) arising during the period		$	11,275		(4,606	)		6,669		(22,659	)		9,256			(13,403	)
	Reclassification adjustment for gains included in net income		(247		)	101			(146	)	(974	)		398			(576	)
	Total		11,028			(4,505	)		6,523		(23,633	)		9,654			(13,979	)
	Amortization related to post-retirement obligations		(1,045		)	427			(618	)	1,121			(458	)		663
	Total other comprehensive income (loss) income		$	9,983		(4,078	)		5,905		(22,512	)		9,196			(13,316	)
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, 2014 and 2013 (in thousands):
			Changes in Accumulated Other Comprehensive Income by Component, net of tax
			For the three months ended September 30,
			2014								2013
			Unrealized			Post  Retirement			Accumulated		Unrealized			Post  Retirement			Accumulated
			Gains on Securities			Obligations			Other		Gains on Securities			Obligations			Other
			Available for						Comprehensive		Available for						Comprehensive
			Sale						Income		Sale						Income
	Balance at June 30,		$	7,401		(2,715	)		4,686		2,227			(8,784	)		(6,557	)
	Current period change in other comprehensive income (loss)		(3,677		)	45			(3,632	)	755			202			957
	Balance at September 30,		$	3,724		(2,670	)		1,054		2,982			(8,582	)		(5,600	)
			Changes in Accumulated Other Comprehensive Income by Component, net of tax
			For the nine months ended September 30,
			2014								2013
			Unrealized			Post Retirement			Accumulated		Unrealized				Post Retirement			Accumulated
			Gains on Securities			Obligations			Other		Gains on Securities				Obligations			Other
			Available for						Comprehensive		Available for							Comprehensive
			Sale						Income		Sale							Income
	Balance at December 31,		$	(2,799	)	(2,052	)		(4,851	)	$	16,961			(9,245	)		7,716
	Current period change in other comprehensive income (loss)		6,523			(618	)		5,905		(13,979		)		663			(13,316	)
	Balance at September 30,		$	3,724		(2,670	)		1,054		$	2,982			(8,582	)		(5,600	)
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, 2014 and 2013 (in thousands):
			Reclassifications Out of Accumulated Other Comprehensive
			Income ("AOCI")
			Amount reclassified from AOCI for the three months ended September 30,							Affected line item in the Consolidated
			2014			2013				Statement of Income
	Details of AOCI:
	Securities available for sale:
	Realized net gains on the sale of securities available for sale		$	487		$	40			Net gain on securities transactions
			(199		)	(16		)		Income tax expense
			288			24				Net of tax
	Post retirement obligations:
	Amortization of actuarial losses (gains)		76			342				Compensation and employee benefits (1)
			(31		)	(140		)		Income tax expense
			45			202				Net of tax
	Total reclassifications		$	333		$	226			Net of tax
			Reclassifications Out of Accumulated Other Comprehensive
			Income
			Amount reclassified from AOCI for the nine months ended September 30,							Affected line item in the Consolidated
			2014			2013				Statement of Income
	Details of AOCI:
	Securities available for sale:
	Realized net gains on the sale of securities available for sale		$	247		$	974			Net (loss) gain on securities transactions
			(101		)	(398		)		Income tax expense
			146			576				Net of tax
	Post retirement obligations:
	Amortization of actuarial losses (gains)		160			1,026				Compensation and employee benefits (1)
			(65		)	(419		)		Income tax expense
			95			607				Net of tax
	Realized loss related to lump sum pension settlement		(1,336		)	—				Compensation and employee benefits
			546			—				Income tax expense
			(790		)	—				Net of tax
	Total reclassifications		$	(1,030	)	$	1,183			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_Activi1

Derivatives and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2014
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 as of September 30, 2014 (in thousands):
		As of September 30, 2014
		Asset Derivatives				Liability Derivatives
		Consolidated Statements of Financial Condition	Fair			Consolidated Statements of Financial Condition	Fair
			Value				Value
	Derivatives not designated as a hedging instruments:
	Interest rate products	Other assets	$	859		Other liabilities	$	845
	Credit contracts	Other assets	5				—
	Total derivatives not designated as hedging instruments		$	864			$	845
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 for the quarter ended September 30, 2014 (in thousands).
			Gain (loss) recognized in Income on derivatives
		Consolidated Statements of Income	Three months ended
			30-Sep-14
	Derivatives not designated as a hedging instruments:
	Interest rate products	Other income	$	27
	Credit contracts	Other income	(1		)
	Total		$	26

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Calculations (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accounting Policies [Abstract]	'	'	'	'
Net income	$19,032	$16,076	$52,412	$53,132
Income available to common stockholders, Basic	19,032	16,076	52,412	53,132
Income available to common stockholders, Diluted	$19,032	$16,076	$52,412	$53,132
Weighted Average Common Shares Outstanding, Basic	62,440,310	57,241,270	59,670,773	57,205,175
Dilutive shares	118,897	116,074	133,432	74,760
Weighted Average Common Shares Outstanding, Diluted	62,559,207	57,357,344	59,804,205	57,279,935
Income available to common stockholders, Per Share Amount, Basic	$0.30	$0.28	$0.88	$0.93
Income available to common stockholders, Per Share Amount, Diluted	$0.30	$0.28	$0.88	$0.93

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Accounting Policies [Abstract]	'	'
Anti-dilutive stock options and awards excluded from computation of earnings per share	1,099,371	1,099,371

Business_Combinations_Details

Business Combinations (Details) (USD $)	9 Months Ended		0 Months Ended	3 Months Ended			0 Months Ended
Share data in Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	30-May-14	Sep. 30, 2014	30-May-14	29-May-14	30-May-14
			Team Capital Bank [Member]	Team Capital Bank [Member]	Team Capital Bank [Member]	Team Capital Bank [Member]	Team Capital Bank [Member]
							Common Stock [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Total assets	'	'	'	'	$963,974,000	'	'
Decrease in estimated fair value of loans acquired	'	'	'	181,000	'	'	'
Loans	'	'	'	'	631,209,000	631,400,000	'
Deposits	'	'	'	'	769,936,000	'	'
Total consideration paid	'	'	115,100,000	'	'	'	'
Cash paid	'	'	31,600,000	'	'	'	'
Shares issued as consideration (in shares)	'	'	'	'	'	'	4.9
Equity interests issued as consideration	$83,517,000	$0	$83,500,000	'	'	'	'

Business_Combinations_Assets_A

Business Combinations (Assets Acquired and Liabilities Assumed) (Details) (Team Capital Bank [Member], USD $)	30-May-14	29-May-14
In Thousands, unless otherwise specified
Team Capital Bank [Member]	'	'
Assets acquired:	'	'
Cash and cash equivalents, net	$68,650	'
Securities available for sale	157,635	'
Loans	631,209	631,400
Bank-owned life insurance	22,319	'
Banking premises and equipment	24,778	'
Accrued interest receivable	3,060	'
Goodwill	40,354	'
Other intangibles assets	9,868	'
Foreclosed assets, net	653	'
Other assets	5,448	'
Total assets acquired	963,974	'
Liabilities assumed:	'	'
Deposits	769,936	'
Borrowed Funds	112,835	'
Other liabilities	-2,314	'
Total liabilities assumed	880,457	'
Net assets acquired	$83,517	'

Investment_Securities_Addition

Investment Securities - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	security		security		position
	position		position		security
Schedule of Held-to-maturity Securities [Line Items]	'	'	'	'	'
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold	$0	$0	$1,674,000	$0	'
Proceeds from maturities, calls and paydowns of securities available for sale	'	'	157,765,000	298,894,000	'
Securities available for sale, at fair value	1,110,323,000	'	1,110,323,000	'	1,157,594,000
Investment securities held to maturity	460,014,000	'	460,014,000	'	357,500,000
Total number of all held to maturity and available for sale securities in an unrealized loss position	261	'	261	'	346
Proceeds from the sale of securities available for sale	'	'	24,429,000	14,310,000	'
Gross gains	482,000	'	632,000	888,000	'
Gross losses	'	'	404,000	0	'
Proceeds from calls on securities available for sale	'	'	740,000	896,000	'
Recognized gain on calls of securities	'	'	2,000	'	'
Other-than-temporary impairment charges, net	'	'	0	'	'
Number of securities in an unrealized loss position	81	'	81	'	76
Amortized cost	1,104,033,000	'	1,104,033,000	'	1,162,332,000
Recognized gain on calls of securities held to maturity portfolio	5,000	40,000	20,000	70,000	'
Recognized loss on calls of securities held to maturity portfolio	0	0	0	2,000	'
Proceeds from the calls	3,566,000	19,635,000	12,376,000	42,113,000	'
Proceeds from maturities, calls and paydowns of investment securities held to maturity	'	'	36,062,000	77,817,000	'
Proceeds from sale of securities held to maturity portfolio	'	0	'	'	'
Number of securities in an unrealized loss position	180	'	180	'	270
Available-for-sale Securities [Member]	'	'	'	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'	'	'	'
Proceeds from maturities, calls and paydowns of securities available for sale	9,946,000	'	'	'	'
Gross losses	0	'	0	'	'
Private Label Mortgage-Backed Securities [Member]	'	'	'	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'	'	'	'
Number of securities in an unrealized loss position	2	'	2	'	'
Amortized cost	2,039,000	'	2,039,000	'	'
Unrealized losses	'	'	6,000	'	'
Nonperforming Financing Receivable [Member] | Held-to-maturity Securities [Member]	'	'	'	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'	'	'	'
Recognized gain on sale of securities held to maturity portfolio	3,000	'	18,000	'	'
Recognized loss on sale of securities held to maturity portfolio	'	'	0	'	'
Proceeds from maturities, calls and paydowns of investment securities held to maturity	'	'	$524,000	$524,000	'

Investment_Securities_Securiti

Investment Securities - Securities Available for Sale (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	$1,104,033	$1,162,332
Gross unrealized gains	13,809	15,125
Gross unrealized losses	-7,519	-19,863
Fair value	1,110,323	1,157,594
US Treasury Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	8,018	'
Gross unrealized gains	0	'
Gross unrealized losses	-32	'
Fair value	7,986	'
Agency Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	87,767	93,223
Gross unrealized gains	271	372
Gross unrealized losses	-94	-179
Fair value	87,944	93,416
Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	991,369	1,060,013
Gross unrealized gains	13,259	14,493
Gross unrealized losses	-7,329	-19,532
Fair value	997,299	1,054,974
State and Municipal Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	6,944	8,739
Gross unrealized gains	160	171
Gross unrealized losses	-7	-152
Fair value	7,097	8,758
Corporate Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	9,538	'
Gross unrealized gains	4	'
Gross unrealized losses	-57	'
Fair value	9,485	'
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	397	357
Gross unrealized gains	115	89
Gross unrealized losses	0	0
Fair value	$512	$446

Investment_Securities_Investme

Investment Securities - Investment Securities Available for Sale by Contractual Maturity (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in one year or less, Amortized cost	$27,678	'
Due after one year through five years, Amortized cost	78,579	'
Due after five years through ten years, Amortized cost	3,018	'
Due after ten years, Amortized cost	2,992	'
Amortized cost	1,104,033	1,162,332
Due in one year or less, Fair value	27,813	'
Due after one year through five years, Fair value	78,711	'
Due after five years through ten years, Fair value	2,964	'
Due after ten years , Fair value	3,024	'
Securities available for sale, at fair value	1,110,323	1,157,594
Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	991,369	1,060,013
Securities available for sale, at fair value	997,299	1,054,974
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	397	357
Securities available for sale, at fair value	$512	$446

Investment_Securities_RollForw

Investment Securities - Roll-Forward of Credit Loss Component of Other-than Temporary Impairment (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]	'	'	'	'
Beginning credit loss amount	$0	$1,240	$1,674	$1,240
Add: Initial OTTI credit losses	0	0	0	0
Subsequent OTTI credit losses	0	0	0	0
Less: Realized losses for securities sold	0	0	1,674	0
Securities intended or required to be sold	0	0	0	0
Increases in expected cash flows on debt securities	0	0	0	0
Ending credit loss amount	0	1,240	0	1,240
Realized gain on previously impaired securities sold	'	'	59	'
Realized loss on previously impaired securities sold	'	'	$365	'

Investment_Securities_Disclosu

Investment Securities - Disclosure Regarding Length of Time on Securities Available for Sale with Temporary Impairment (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair value	$215,367	$642,000
Less than 12 months, Gross unrealized losses	-826	-19,181
12 months or longer, Fair value	302,391	13,521
12 months or longer, Gross unrealized losses	-6,693	-682
Total, Fair value	517,758	655,521
Total, Gross unrealized losses	-7,519	-19,863
US Treasury Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair value	7,986	'
Less than 12 months, Gross unrealized losses	-32	'
12 months or longer, Fair value	0	'
12 months or longer, Gross unrealized losses	0	'
Total, Fair value	7,986	'
Total, Gross unrealized losses	-32	'
Agency Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair value	28,129	34,355
Less than 12 months, Gross unrealized losses	-50	-179
12 months or longer, Fair value	4,992	0
12 months or longer, Gross unrealized losses	-44	0
Total, Fair value	33,121	34,355
Total, Gross unrealized losses	-94	-179
Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair value	174,267	604,778
Less than 12 months, Gross unrealized losses	-687	-18,850
12 months or longer, Fair value	296,736	13,521
12 months or longer, Gross unrealized losses	-6,642	-682
Total, Fair value	471,003	618,299
Total, Gross unrealized losses	-7,329	-19,532
State and Municipal Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair value	0	2,867
Less than 12 months, Gross unrealized losses	0	-152
12 months or longer, Fair value	663	'
12 months or longer, Gross unrealized losses	-7	'
Total, Fair value	663	2,867
Total, Gross unrealized losses	-7	-152
Corporate Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair value	4,985	'
Less than 12 months, Gross unrealized losses	-57	'
12 months or longer, Fair value	0	'
12 months or longer, Gross unrealized losses	0	'
Total, Fair value	4,985	'
Total, Gross unrealized losses	($57)	'

Investment_Securities_Investme1

Investment Securities - Investment Securities Held to Maturity (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	$460,014	$357,500
Gross unrealized gains	12,589	5,753
Gross unrealized losses	-1,430	-7,340
Fair value	471,173	355,913
Agency Obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	7,108	7,523
Gross unrealized gains	20	13
Gross unrealized losses	-31	-66
Fair value	7,097	7,470
Mortgage-Backed Securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	3,239	5,273
Gross unrealized gains	146	247
Gross unrealized losses	0	0
Fair value	3,385	5,520
State and Municipal Obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	439,162	334,750
Gross unrealized gains	12,385	5,435
Gross unrealized losses	-1,361	-7,198
Fair value	450,186	332,987
Corporate Obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	10,505	9,954
Gross unrealized gains	38	58
Gross unrealized losses	-38	-76
Fair value	$10,505	$9,936

Investment_Securities_Securiti1

Investment Securities - Securities Held to Maturity by Contractual Maturity (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Due in one year or less, Amortized cost	$6,814	'
Due after one year through five years, Amortized cost	53,690	'
Due after five years through ten years, Amortized cost	165,552	'
Due after ten years, Amortized cost	230,719	'
Amortized cost	460,014	357,500
Due in one year or less, Fair value	6,863	'
Due after one year through five years, Fair value	55,074	'
Due after five years through ten years, Fair value	171,594	'
Due after ten years, Fair value	234,257	'
Fair value	471,173	355,913
Mortgage-Backed Securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	3,239	'
Fair value	$3,385	'

Investment_Securities_Disclosu1

Investment Securities - Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	$32,600	$135,141
Less than 12 months, Gross unrealized losses	-272	-5,518
12 months or longer, Fair value	62,481	19,051
12 months or longer, Gross unrealized losses	-1,158	-1,822
Total, Fair value	95,081	154,192
Total, Gross unrealized losses	-1,430	-7,340
Agency Obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	1,166	5,766
Less than 12 months, Gross unrealized losses	-4	-66
12 months or longer, Fair value	2,953	0
12 months or longer, Gross unrealized losses	-27	0
Total, Fair value	4,119	5,766
Total, Gross unrealized losses	-31	-66
State and Municipal Obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	28,109	123,988
Less than 12 months, Gross unrealized losses	-255	-5,376
12 months or longer, Fair value	56,726	19,051
12 months or longer, Gross unrealized losses	-1,106	-1,822
Total, Fair value	84,835	143,039
Total, Gross unrealized losses	-1,361	-7,198
Corporate Obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	3,325	5,387
Less than 12 months, Gross unrealized losses	-13	-76
12 months or longer, Fair value	2,802	0
12 months or longer, Gross unrealized losses	-25	0
Total, Fair value	6,127	5,387
Total, Gross unrealized losses	($38)	($76)

Loans_Receivable_and_Allowance2

Loans Receivable and Allowance for Loan Losses - Schedule of Summarized Loans Receivable (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Servicing Liability at Amortized Cost [Line Items]	'	'
Total mortgage loans	$4,101,261	$3,686,862
Total gross loans	5,963,506	5,196,663
Purchased credit-impaired (PCI) loans	4,511	0
Premiums on purchased loans	4,895	4,202
Unearned discounts	-54	-62
Net deferred fees	-6,660	-5,990
Loans receivable	5,966,198	5,194,813
Residential [Member]	'	'
Servicing Liability at Amortized Cost [Line Items]	'	'
Total mortgage loans	1,236,566	1,174,043
Commercial [Member]	'	'
Servicing Liability at Amortized Cost [Line Items]	'	'
Total mortgage loans	1,687,132	1,400,624
Multi-Family [Member]	'	'
Servicing Liability at Amortized Cost [Line Items]	'	'
Total mortgage loans	941,863	928,906
Construction [Member]	'	'
Servicing Liability at Amortized Cost [Line Items]	'	'
Total mortgage loans	235,700	183,289
Commercial Loans [Member]	'	'
Servicing Liability at Amortized Cost [Line Items]	'	'
Total gross loans	1,249,480	932,199
Consumer Loans [Member]	'	'
Servicing Liability at Amortized Cost [Line Items]	'	'
Total gross loans	$612,765	$577,602

Loans_Receivable_and_Allowance3

Loans Receivable and Allowance for Loan Losses - Summary of Aging Loans Receivable by Portfolio Segment and Class (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	$12,510	$14,105
60-89 Days	6,095	7,651
Non-accrual	64,072	76,680
Total Past Due and Non-accrual	82,677	98,436
Current	5,880,829	5,098,227
Total loans	5,963,506	5,196,663
Recorded Investment > 90 days accruing	0	0
Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	770	305
60-89 Days	589	77
Non-accrual	20,167	22,228
Total Past Due and Non-accrual	21,526	22,610
Current	1,227,954	909,589
Total loans	1,249,480	932,199
Recorded Investment > 90 days accruing	0	0
Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	2,618	2,474
60-89 Days	735	2,194
Non-accrual	4,087	3,928
Total Past Due and Non-accrual	7,440	8,596
Current	605,325	569,006
Total loans	612,765	577,602
Recorded Investment > 90 days accruing	0	0
Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	9,122	11,326
60-89 Days	4,771	5,380
Non-accrual	39,818	50,524
Total Past Due and Non-accrual	53,711	67,230
Current	4,047,550	3,619,632
Total loans	4,101,261	3,686,862
Recorded Investment > 90 days accruing	0	0
Mortgage Loans [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	9,028	10,639
60-89 Days	4,005	5,062
Non-accrual	20,044	23,011
Total Past Due and Non-accrual	33,077	38,712
Current	1,203,489	1,135,331
Total loans	1,236,566	1,174,043
Recorded Investment > 90 days accruing	0	0
Mortgage Loans [Member] | Commercial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	94	687
60-89 Days	766	318
Non-accrual	19,371	18,662
Total Past Due and Non-accrual	20,231	19,667
Current	1,666,901	1,380,957
Total loans	1,687,132	1,400,624
Recorded Investment > 90 days accruing	0	0
Mortgage Loans [Member] | Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	0	0
60-89 Days	0	0
Non-accrual	403	403
Total Past Due and Non-accrual	403	403
Current	941,460	928,503
Total loans	941,863	928,906
Recorded Investment > 90 days accruing	0	0
Mortgage Loans [Member] | Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days	0	0
60-89 Days	0	0
Non-accrual	0	8,448
Total Past Due and Non-accrual	0	8,448
Current	235,700	174,841
Total loans	235,700	183,289
Recorded Investment > 90 days accruing	$0	$0

Loans_Receivable_and_Allowance4

Loans Receivable and Allowance for Loan Losses - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

30-May-14

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Borrowers

Borrowers

Team Capital Bank [Member]

Impaired Loans - Trouble Debt Restructurings [Member]

Impaired Loans - Trouble Debt Restructurings [Member]

Impaired Loans - Trouble Debt Restructurings [Member]

Impaired Loans - Trouble Debt Restructurings [Member]

With Related Allowance For Loan Losses [Member]

With Related Allowance For Loan Losses [Member]

No Allowance for Loan Losses Required [Member]

No Allowance for Loan Losses Required [Member]

SecurityLoan

SecurityLoan

TDRs

TDRs

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of acquired loans

'

'

'

'

'

$5,220,000

'

'

'

'

'

'

'

'

Principal amount of nonaccrual loans

64,100,000

'

64,100,000

'

76,700,000

'

'

'

'

'

'

'

'

'

Loans less than 90 days past due

12,900,000

'

12,900,000

'

33,500,000

'

'

'

'

'

'

'

'

'

Impaired loan defined floor limit

1,000,000

'

1,000,000

'

'

'

'

'

'

'

'

'

'

'

Impaired loans number

'

'

159

'

152

'

'

'

'

'

'

'

'

'

Impaired loans

93,512,000

'

93,512,000

'

106,370,000

'

'

'

'

'

'

'

'

'

Number of troubled debt restructurings

'

'

122

'

115

'

'

'

'

'

'

'

'

'

Number of borrowers

'

'

118

'

110

'

'

'

'

'

'

'

'

'

Loans and leases receivable, impaired, nonperforming, accrual of interest

56,000,000

'

56,000,000

'

58,200,000

'

'

'

'

'

'

'

'

'

Allowances for loan losses

'

'

'

'

'

'

117,000

229,000

426,000

848,000

'

'

'

'

Weighted average modified interest rate

5.50%

3.51%

4.90%

4.12%

'

'

'

'

'

'

'

'

'

'

Weighted average prior modification rate

6.50%

6.79%

5.70%

6.04%

'

'

'

'

'

'

'

'

'

'

Allowances for loan losses

8,290,000

'

8,290,000

'

10,217,000

'

'

'

'

'

8,290,000

10,217,000

'

'

Impaired financing receivable with no related allowance

'

'

'

'

'

'

'

'

'

'

'

'

20,524,000

21,958,000

Average balance of impaired loans

'

'

$95,490,000

'

'

'

'

'

'

'

'

'

'

'

Loans_Receivable_and_Allowance5

Loans Receivable and Allowance for Loan Losses - Summary of Loans Receivable by Portfolio Segment and Impairment Method (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually evaluated for impairment	$93,512	$106,370
Collectively evaluated for impairment	5,869,994	5,090,293
Total loans	5,963,506	5,196,663
Mortgage Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually evaluated for impairment	66,898	75,839
Collectively evaluated for impairment	4,034,363	3,611,023
Total loans	4,101,261	3,686,862
Commercial Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually evaluated for impairment	24,195	28,210
Collectively evaluated for impairment	1,225,285	903,989
Total loans	1,249,480	932,199
Consumer Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually evaluated for impairment	2,419	2,321
Collectively evaluated for impairment	610,346	575,281
Total loans	$612,765	$577,602

Loans_Receivable_and_Allowance6

Loans Receivable and Allowance for Loan Losses - Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification (Detail) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'	'
Individually evaluated for impairment	$8,290	'	$10,217	'	'	'
Collectively evaluated for impairment	55,040	'	54,447	'	'	'
Total	63,330	63,875	64,664	66,008	67,005	70,348
Mortgage Loans [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'	'
Individually evaluated for impairment	4,432	'	7,829	'	'	'
Collectively evaluated for impairment	26,244	'	26,315	'	'	'
Total	30,676	31,040	34,144	35,403	30,670	37,962
Commercial Loans [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'	'
Individually evaluated for impairment	3,741	'	2,221	'	'	'
Collectively evaluated for impairment	23,101	'	21,886	'	'	'
Total	26,842	27,079	24,107	23,427	23,810	20,315
Consumer Loans [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'	'
Individually evaluated for impairment	117	'	167	'	'	'
Collectively evaluated for impairment	4,430	'	4,762	'	'	'
Total	4,547	4,381	4,929	4,564	4,473	5,224
Total Portfolio Segments [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'	'
Individually evaluated for impairment	8,290	'	10,217	'	'	'
Collectively evaluated for impairment	53,775	'	52,963	'	'	'
Total	62,065	62,500	63,180	63,394	58,953	63,501
Unallocated [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'	'
Individually evaluated for impairment	0	'	0	'	'	'
Collectively evaluated for impairment	1,265	'	1,484	'	'	'
Total	$1,265	$1,375	$1,484	$2,614	$8,052	$6,847

Loans_Receivable_and_Allowance7

Loans Receivable and Allowance for Loan Losses - Schedule of Troubled Debt Restructurings (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
	SecurityLoan	SecurityLoan	SecurityLoan	SecurityLoan
Residential [Member]	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'
Number of Loans	4	5	12	37
Pre-Modification Outstanding Recorded Investment	$742	$726	$2,705	$7,284
Post-Modification Outstanding Recorded Investment	774	686	2,443	7,383
Commercial [Member]	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'
Number of Loans	0	0	1	1
Pre-Modification Outstanding Recorded Investment	0	0	865	330
Post-Modification Outstanding Recorded Investment	0	0	866	305
Mortgage Loans [Member]	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'
Number of Loans	4	5	13	38
Pre-Modification Outstanding Recorded Investment	742	726	3,570	7,614
Post-Modification Outstanding Recorded Investment	774	686	3,309	7,688
Commercial Loans [Member]	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'
Number of Loans	1	2	2	2
Pre-Modification Outstanding Recorded Investment	0	1,546	300	1,546
Post-Modification Outstanding Recorded Investment	367	1,529	665	1,529
Consumer Loans [Member]	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'
Number of Loans	2	1	2	6
Pre-Modification Outstanding Recorded Investment	393	344	393	812
Post-Modification Outstanding Recorded Investment	165	344	165	798
Total Restructured Loans [Member]	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'
Number of Loans	7	8	17	46
Pre-Modification Outstanding Recorded Investment	1,135	2,616	4,263	9,972
Post-Modification Outstanding Recorded Investment	$1,306	$2,559	$4,139	$10,015

Loans_Receivable_and_Allowance8

Loans Receivable and Allowance for Loan Losses - Schedule of Troubled Debt Restructurings Subsequently Defaulted (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
	SecurityLoan	SecurityLoan
Residential [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Number of Loans	0	1
Outstanding Recorded Investment	$0	$130
Mortgage Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Number of Loans	0	1
Outstanding Recorded Investment	0	130
Total Restructured Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Number of Loans	0	1
Outstanding Recorded Investment	$0	$130

Loans_Receivable_and_Allowance9

Loans Receivable and Allowance for Loan Losses - PCI Loans Acquired (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2014	30-May-14
					Team Capital Bank [Member]	Team Capital Bank [Member]	Team Capital Bank [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]	'	'	'	'	'	'	'
Contractually required principal and interest	'	'	'	'	'	'	$12,505,000
Contractual cash flows not expected to be collected (non-accretable discount)	'	'	'	'	'	'	-6,475,000
Expected cash flows to be collected at acquisition	'	'	'	'	'	'	6,030,000
Interest component of expected cash flows (accretable yield)	'	'	'	'	'	'	-810,000
Fair value of acquired loans	'	'	'	'	'	'	5,220,000
Decrease in value of PCI loans	'	'	'	'	709,000	'	'
Carrying value of PCI loans	'	'	'	'	4,500,000	4,500,000	5,200,000
Interest income	$73,652,000	$62,984,000	$205,561,000	$188,701,000	$202,000	$202,000	'

Recovered_Sheet1

Loans Receivable and Allowance for Loan Losses - Change in Accretable Yield (Details) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]	'	'
Beginning balance	$773	$0
Acquisition	0	810
Accretion	-314	-351
Reclassification from non-accretable difference	136	136
Ending balance	$595	$595

Recovered_Sheet2

Loans Receivable and Allowance for Loan Losses - Schedule of Allowance for Loan Losses by Portfolio Segment (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Balance at beginning of period	$63,875	$67,005	$64,664	$70,348
Provision charged to operations	1,500	1,200	3,400	3,700
Recoveries of loans previously charged off	696	1,463	2,244	2,625
Loans charged off	-2,741	-3,660	-6,978	-10,665
Balance at end of period	63,330	66,008	63,330	66,008
Mortgage Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Balance at beginning of period	31,040	30,670	34,144	37,962
Provision charged to operations	54	5,091	-1,300	1,479
Recoveries of loans previously charged off	120	739	277	1,082
Loans charged off	-538	-1,097	-2,445	-5,120
Balance at end of period	30,676	35,403	30,676	35,403
Commercial Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Balance at beginning of period	27,079	23,810	24,107	20,315
Provision charged to operations	1,114	527	4,108	4,775
Recoveries of loans previously charged off	404	420	945	734
Loans charged off	-1,755	-1,330	-2,318	-2,397
Balance at end of period	26,842	23,427	26,842	23,427
Consumer Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Balance at beginning of period	4,381	4,473	4,929	5,224
Provision charged to operations	442	1,021	811	1,679
Recoveries of loans previously charged off	172	303	1,022	809
Loans charged off	-448	-1,233	-2,215	-3,148
Balance at end of period	4,547	4,564	4,547	4,564
Total Portfolio Segments [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Balance at beginning of period	62,500	58,953	63,180	63,501
Provision charged to operations	1,610	6,639	3,619	7,933
Recoveries of loans previously charged off	696	1,462	2,244	2,625
Loans charged off	-2,741	-3,660	-6,978	-10,665
Balance at end of period	62,065	63,394	62,065	63,394
Unallocated [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Balance at beginning of period	1,375	8,052	1,484	6,847
Provision charged to operations	-110	-5,439	-219	-4,233
Recoveries of loans previously charged off	0	1	0	0
Loans charged off	0	0	0	0
Balance at end of period	$1,265	$2,614	$1,265	$2,614

Recovered_Sheet3

Loans Receivable and Allowance for Loan Losses - Summary of Impaired Loans Receivable by Class (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	$102,767	$116,056
Recorded Investment	93,512	106,370
Related Allowance	8,290	10,217
Average Recorded Investment	95,490	111,008
Interest Income Recognized	1,783	2,598
Residential [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	30,255	30,581
Recorded Investment	25,660	26,472
Related Allowance	2,310	2,571
Average Recorded Investment	25,999	26,932
Interest Income Recognized	658	856
Commercial [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	42,749	42,237
Recorded Investment	41,238	40,918
Related Allowance	2,122	2,309
Average Recorded Investment	41,478	41,561
Interest Income Recognized	729	979
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	0	9,810
Recorded Investment	0	8,449
Related Allowance	0	2,949
Average Recorded Investment	0	8,659
Interest Income Recognized	0	0
Mortgage Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	73,004	82,628
Recorded Investment	66,898	75,839
Related Allowance	4,432	7,829
Average Recorded Investment	67,477	77,152
Interest Income Recognized	1,387	1,835
Commercial Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	26,917	30,942
Recorded Investment	24,195	28,210
Related Allowance	3,741	2,221
Average Recorded Investment	25,357	31,456
Interest Income Recognized	312	674
Consumer Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	2,846	2,486
Recorded Investment	2,419	2,321
Related Allowance	117	167
Average Recorded Investment	2,656	2,400
Interest Income Recognized	84	89
Loans With No Related Allowance [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	26,238	27,293
Recorded Investment	20,524	21,958
Average Recorded Investment	21,156	24,082
Interest Income Recognized	289	352
Loans With No Related Allowance [Member] | Residential [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	14,697	13,459
Recorded Investment	10,694	9,999
Average Recorded Investment	10,920	10,322
Interest Income Recognized	256	299
Loans With No Related Allowance [Member] | Commercial [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	5,284	4,917
Recorded Investment	5,011	4,667
Average Recorded Investment	5,023	4,834
Interest Income Recognized	4	3
Loans With No Related Allowance [Member] | Multi-Family [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	0	0
Recorded Investment	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	0	0
Recorded Investment	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Loans With No Related Allowance [Member] | Mortgage Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	19,981	18,376
Recorded Investment	15,705	14,666
Average Recorded Investment	15,943	15,156
Interest Income Recognized	260	302
Loans With No Related Allowance [Member] | Commercial Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	4,989	8,163
Recorded Investment	3,966	6,674
Average Recorded Investment	4,141	8,252
Interest Income Recognized	5	24
Loans With No Related Allowance [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	1,268	754
Recorded Investment	853	618
Average Recorded Investment	1,072	674
Interest Income Recognized	24	26
Loans With Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	76,529	88,763
Recorded Investment	72,988	84,412
Related Allowance	8,290	10,217
Average Recorded Investment	74,334	86,926
Interest Income Recognized	1,494	2,246
Loans With Allowance Recorded [Member] | Residential [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	15,558	17,122
Recorded Investment	14,966	16,473
Related Allowance	2,310	2,571
Average Recorded Investment	15,079	16,610
Interest Income Recognized	402	557
Loans With Allowance Recorded [Member] | Commercial [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	37,465	37,320
Recorded Investment	36,227	36,251
Related Allowance	2,122	2,309
Average Recorded Investment	36,455	36,727
Interest Income Recognized	725	976
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	9,810
Recorded Investment	0	8,449
Related Allowance	0	2,949
Average Recorded Investment	0	8,659
Interest Income Recognized	0	0
Loans With Allowance Recorded [Member] | Mortgage Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	53,023	64,252
Recorded Investment	51,193	61,173
Related Allowance	4,432	7,829
Average Recorded Investment	51,534	61,996
Interest Income Recognized	1,127	1,533
Loans With Allowance Recorded [Member] | Commercial Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	21,928	22,779
Recorded Investment	20,229	21,536
Related Allowance	3,741	2,221
Average Recorded Investment	21,216	23,204
Interest Income Recognized	307	650
Loans With Allowance Recorded [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance	1,578	1,732
Recorded Investment	1,566	1,703
Related Allowance	117	167
Average Recorded Investment	1,584	1,726
Interest Income Recognized	$60	$63

Recovered_Sheet4

Loans Receivable and Allowance for Loan Losses - Summary of Loans Receivable by Credit Quality Risk Rating Indicator (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	$4,101,261	$3,686,862
Total loans	5,963,506	5,196,663
Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	1,236,566	1,174,043
Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	1,687,132	1,400,624
Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	941,863	928,906
Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	235,700	183,289
Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	4,101,261	3,686,862
Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	1,249,480	932,199
Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	612,765	577,602
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	97,429	50,951
Special Mention [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	4,005	5,062
Special Mention [Member] | Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	16,272	15,301
Special Mention [Member] | Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	857	0
Special Mention [Member] | Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	2,600	0
Special Mention [Member] | Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	23,734	20,363
Special Mention [Member] | Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	72,959	28,551
Special Mention [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	736	2,037
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	114,240	137,362
Substandard [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	20,043	23,011
Substandard [Member] | Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	53,810	54,592
Substandard [Member] | Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	403	403
Substandard [Member] | Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	0	8,449
Substandard [Member] | Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	74,256	86,455
Substandard [Member] | Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	36,077	46,687
Substandard [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	3,907	4,220
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	479	649
Doubtful [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	0	0
Doubtful [Member] | Commercial [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 loans	479	649
Doubtful [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loss [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	0	0
Loss [Member] | Commercial [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 loans	0	0
Loss [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Total classified and criticized [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	212,148	188,962
Total classified and criticized [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	24,048	28,073
Total classified and criticized [Member] | Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	70,082	69,893
Total classified and criticized [Member] | Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	1,260	403
Total classified and criticized [Member] | Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	2,600	8,449
Total classified and criticized [Member] | Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	97,990	106,818
Total classified and criticized [Member] | Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	109,515	75,887
Total classified and criticized [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	4,643	6,257
Pass/Watch [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	5,751,358	5,007,701
Pass/Watch [Member] | Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	1,212,518	1,145,970
Pass/Watch [Member] | Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	1,617,050	1,330,731
Pass/Watch [Member] | Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	940,603	928,503
Pass/Watch [Member] | Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	233,100	174,840
Pass/Watch [Member] | Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total mortgage loans	4,003,271	3,580,044
Pass/Watch [Member] | Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	1,139,965	856,312
Pass/Watch [Member] | Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	$608,122	$571,345

Deposits_Schedule_of_Deposits_

Deposits - Schedule of Deposits (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Banking and Thrift [Abstract]	'	'
Savings	$983,831	$921,993
Money market	1,553,155	1,281,596
NOW	1,357,343	1,326,941
Non-interest bearing	1,017,756	865,187
Certificates of deposit	815,868	806,754
Total deposits	$5,727,953	$5,202,471

Components_of_Net_Periodic_Ben2

Components of Net Periodic Benefit Cost - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	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	'	'1 year	'	'
Defined benefit plan, percentage vested	100.00%	100.00%	'	'
Benefits paid	$4.30	$4.30	'	'
Charge associated with employees that elected to receive lump sum pension distributions	'	$1.30	'	'
Retiree benefits eliminated if less than service period, years	'	'10 years	'10 years	'10 years

Components_of_Net_Periodic_Ben3

Components of Net Periodic Benefit Cost - Net Periodic Benefit Cost (Increase) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Pension benefits [Member]	'	'	'	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'	'	'	'
Service cost	$0	$0	$0	$0
Interest cost	284	318	988	954
Expected return on plan assets	-837	-792	-2,625	-2,376
Amortization of prior service cost	0	0	0	0
Amortization of the net loss (gain)	127	338	313	1,014
Net periodic benefit cost (increase)	-426	-136	-1,324	-408
Other post-retirement benefits [Member]	'	'	'	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'	'	'	'
Service cost	42	60	126	180
Interest cost	272	245	816	735
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	-1	-1	-3	-3
Amortization of the net loss (gain)	-51	4	-153	12
Net periodic benefit cost (increase)	$262	$308	$786	$924

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (Maximum [Member])	9 Months Ended
	Sep. 30, 2014
Maximum [Member]	'
Estimated costs	6.00%

Fair_Value_Measurements_Assets

Fair Value Measurements - Assets and Liabilities Reported on Consolidated Statements of Financial Condition at Fair Values (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Securities available for sale:	'	'
Securities available for sale, at fair value	$1,110,323	$1,157,594
Liability derivative	860	'
Measured on a non-recurring basis:	'	'
Foreclosed assets	6,334	5,486
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	96,442	93,862
Significant Other Observable Inputs (Level 2) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	1,013,881	1,063,732
Asset derivative	864	'
Liability derivative	845	'
Significant Unobservable Inputs (Level 3) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	0	0
US Treasury Obligations [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	7,986	'
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	7,986	'
US Treasury Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	0	'
US Treasury Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	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	87,944	93,416
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	997,299	1,054,974
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	997,299	1,054,974
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	7,097	8,758
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	7,097	8,758
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	9,485	'
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	'
Corporate Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	9,485	'
Corporate Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	0	'
Equity Securities [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	512	446
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	512	446
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	1,110,323	1,157,594
Asset derivative	864	'
Total assets at fair value	1,111,187	'
Liability derivative	845	'
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	96,442	93,862
Asset derivative	0	'
Total assets at fair value	96,442	'
Liability derivative	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	1,013,881	1,063,732
Asset derivative	864	'
Total assets at fair value	1,014,745	'
Liability derivative	845	'
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
Asset derivative	0	'
Total assets at fair value	0	'
Liability derivative	0	'
Measured on a Recurring Basis [Member] | US Treasury Obligations [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	7,986	'
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	7,986	'
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	'
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	'
Measured on a Recurring Basis [Member] | Agency Obligations [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	87,944	93,416
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	87,944	93,416
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	997,299	1,054,974
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	997,299	1,054,974
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	7,097	8,758
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	7,097	8,758
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	9,485	'
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	'
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	9,485	'
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	'
Measured on a Recurring Basis [Member] | Equity Securities [Member]	'	'
Securities available for sale:	'	'
Securities available for sale, at fair value	512	446
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	512	446
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	26,338	29,782
Foreclosed assets	6,334	5,486
Fair value, Measured on a non-recurring basis	32,672	35,268
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	26,338	29,782
Foreclosed assets	6,334	5,486
Fair value, Measured on a non-recurring basis	$32,672	$35,268

Fair_Value_Measurements_Schedu

Fair Value Measurements - Schedule of Financial Instruments at Carrying and Fair Values (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financial assets:	'	'	'	'
Cash and cash equivalents	$88,805	$101,224	$95,286	$103,823
Securities available for sale, at fair value	1,110,323	1,157,594	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	460,014	357,500	'	'
FHLB-NY stock	68,725	58,070	'	'
Loans, net of allowance for loan losses	5,902,868	5,130,149	'	'
Financial liabilities:	'	'	'	'
Certificates of deposit	815,868	806,754	'	'
Total deposits	5,727,953	5,202,471	'	'
Borrowings	1,490,983	1,203,879	'	'
Liability derivative	860	'	'	'
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	88,805	101,224	'	'
Securities available for sale, at fair value	96,442	93,862	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	7,097	7,470	'	'
FHLB-NY stock	68,725	58,070	'	'
Loans, net of allowance for loan losses	0	0	'	'
Financial liabilities:	'	'	'	'
Deposits other than certificates of deposits	4,912,085	4,395,717	'	'
Certificates of deposit	0	0	'	'
Total deposits	4,912,085	4,395,717	'	'
Borrowings	0	0	'	'
Significant Other Observable Inputs (Level 2) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	0	0	'	'
Securities available for sale, at fair value	1,013,881	1,063,732	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	464,076	348,443	'	'
FHLB-NY stock	0	0	'	'
Loans, net of allowance for loan losses	0	0	'	'
Asset derivative	864	'	'	'
Financial liabilities:	'	'	'	'
Deposits other than certificates of deposits	0	0	'	'
Certificates of deposit	822,299	813,337	'	'
Total deposits	822,299	813,337	'	'
Borrowings	1,497,921	1,218,136	'	'
Liability derivative	845	'	'	'
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	'	'
FHLB-NY stock	0	0	'	'
Loans, net of allowance for loan losses	6,001,942	5,221,228	'	'
Financial liabilities:	'	'	'	'
Deposits other than certificates of deposits	0	0	'	'
Certificates of deposit	0	0	'	'
Total deposits	0	0	'	'
Borrowings	0	0	'	'
Carrying Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	88,805	101,224	'	'
Securities available for sale, at fair value	1,110,323	1,157,594	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	460,014	357,500	'	'
FHLB-NY stock	68,725	58,070	'	'
Loans, net of allowance for loan losses	5,902,868	5,130,149	'	'
Asset derivative	864	'	'	'
Financial liabilities:	'	'	'	'
Deposits other than certificates of deposits	4,912,085	4,395,717	'	'
Certificates of deposit	815,868	806,754	'	'
Total deposits	5,727,953	5,202,471	'	'
Borrowings	1,490,983	1,203,879	'	'
Liability derivative	845	'	'	'
Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	88,805	101,224	'	'
Securities available for sale, at fair value	1,110,323	1,157,594	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	471,173	355,913	'	'
FHLB-NY stock	68,725	58,070	'	'
Loans, net of allowance for loan losses	6,001,942	5,221,228	'	'
Asset derivative	864	'	'	'
Financial liabilities:	'	'	'	'
Deposits other than certificates of deposits	4,912,085	4,395,717	'	'
Certificates of deposit	822,299	813,337	'	'
Total deposits	5,734,384	5,209,054	'	'
Borrowings	1,497,921	1,218,136	'	'
Liability derivative	845	'	'	'
US Treasury Obligations [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	7,986	'	'	'
US Treasury Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	7,986	'	'	'
US Treasury Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	0	'	'	'
US Treasury Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	0	'	'	'
US Treasury Obligations [Member] | Carrying Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	7,986	'	'	'
US Treasury Obligations [Member] | Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	7,986	'	'	'
Agency Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	87,944	93,416	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	7,097	7,470	'	'
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	87,944	93,416	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	7,108	7,523	'	'
Agency Obligations [Member] | Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	87,944	93,416	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	7,097	7,470	'	'
Mortgage-Backed Securities [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	997,299	1,054,974	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	3,239	5,273	'	'
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	997,299	1,054,974	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	3,385	5,520	'	'
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	997,299	1,054,974	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	3,239	5,273	'	'
Mortgage-Backed Securities [Member] | Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	997,299	1,054,974	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	3,385	5,520	'	'
State and Municipal Obligations [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	7,097	8,758	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	439,162	334,750	'	'
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	7,097	8,758	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	450,186	332,987	'	'
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	7,097	8,758	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	439,162	334,750	'	'
State and Municipal Obligations [Member] | Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	7,097	8,758	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	450,186	332,987	'	'
Equity Securities [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	512	446	'	'
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	512	446	'	'
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	512	446	'	'
Equity Securities [Member] | Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	512	446	'	'
Corporate Obligations [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	9,485	'	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	10,505	9,954	'	'
Corporate Obligations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	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	9,485	'	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	10,505	9,936	'	'
Corporate Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	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	9,485	'	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	10,505	9,954	'	'
Corporate Obligations [Member] | Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale, at fair value	9,485	'	'	'
Investment securities held to maturity:	'	'	'	'
Investment securities held to maturity	$10,505	$9,936	'	'

Other_Comprehensive_Income_Los2

Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Total other comprehensive (loss) income, Before Tax	($5,611)	$1,620	$9,983	($22,512)
Total other comprehensive (loss) income, Tax Effect	1,979	-663	-4,078	9,196
Total other comprehensive (loss) income	-3,632	957	5,905	-13,316
Unrealized gains on securities available for sale	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Net (losses) gains, Before Tax	-5,200	1,318	11,275	-22,659
Reclassification adjustment, Before Tax	-487	-40	-247	-974
Total other comprehensive (loss) income, Before Tax	-5,687	1,278	11,028	-23,633
Net (losses) gains, Tax Effect	1,811	-539	-4,606	9,256
Reclassification adjustment, Tax Effect	-199	-16	-101	-398
Total other comprehensive (loss) income, Tax Effect	2,010	-523	-4,505	9,654
Net (losses) gains, After Tax	-3,389	779	6,669	-13,403
Reclassification adjustment, After Tax	-288	-24	-146	-576
Total other comprehensive (loss) income	-3,677	755	6,523	-13,979
Post-retirement obligations	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Total other comprehensive (loss) income, Before Tax	76	342	-1,045	1,121
Total other comprehensive (loss) income, Tax Effect	-31	-140	427	-458
Total other comprehensive (loss) income	$45	$202	($618)	$663

Other_Comprehensive_Income_Los3

Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income, Net of Tax (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	$4,686	($6,557)	($4,851)	$7,716
Year-to-date change	-3,632	957	5,905	-13,316
Ending balance	1,054	-5,600	1,054	-5,600
Unrealized gains on securities available for sale	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	7,401	2,227	-2,799	16,961
Year-to-date change	-3,677	755	6,523	-13,979
Ending balance	3,724	2,982	3,724	2,982
Post-retirement obligations	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	-2,715	-8,784	-2,052	-9,245
Year-to-date change	45	202	-618	663
Ending balance	($2,670)	($8,582)	($2,670)	($8,582)

Other_Comprehensive_Income_Los4

Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) - Reclassifications Out of Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'		'
Income tax expense	($7,913)		($11,987)		($21,817)		($27,560)
Net income	19,032		16,076		52,412		53,132
Reclassification adjustment	'		'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'		'
Net income	333		226		-1,030		1,183
Reclassification adjustment | Securities available for sale	'		'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'		'
Net gain (loss) on securities transactions	487		40		247		974
Income tax expense	-199		-16		-101		-398
Net income	288		24		146		576
Reclassification adjustment | Post-retirement obligations	'		'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'		'
Compensation and employee benefits, amortization of actuarial losses (gains)	76	[1]	342	[1]	160	[1]	1,026	[1]
Income tax expense	-31		-140		-65		-419
Net income	45		202		95		607
Reclassification adjustment | Post-retirement obligations, unamortized	'		'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'		'
Compensation and employee benefits, realized loss related to lump sum pension settlement	'		'		-1,336		0
Income tax expense	'		'		546		0
Net income	'		'		($790)		$0
[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_Activi2

Derivatives and Hedging Activities (Fair Value of Derivatives) (Details) (Derivatives not designated as a hedging instruments, USD $)	Sep. 30, 2014
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'
Asset Derivatives	$864
Liability Derivatives	845
Other Assets | Interest rate products	'
Derivatives, Fair Value [Line Items]	'
Asset Derivatives	859
Other Assets | Credit contracts	'
Derivatives, Fair Value [Line Items]	'
Asset Derivatives	5
Other Liabilities | Interest rate products	'
Derivatives, Fair Value [Line Items]	'
Liability Derivatives	$845

Derivatives_and_Hedging_Activi3

Derivatives and Hedging Activities (Gains and Losses on Derivatives) (Details) (Derivatives not designated as a hedging instruments, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]	'
Gain (loss) recognized in Income on derivatives	$26
Other Income | Interest rate products	'
Derivative Instruments, Gain (Loss) [Line Items]	'
Gain (loss) recognized in Income on derivatives	27
Other Income | Credit contracts	'
Derivative Instruments, Gain (Loss) [Line Items]	'
Gain (loss) recognized in Income on derivatives	($1)

Derivatives_and_Hedging_Activi4

Derivatives and Hedging Activities (Additional Information) (Details) (USD $)	Sep. 30, 2014
Derivative [Line Items]	'
Liability derivative	$860,000
Collateral against obligations	590,000
Interest rate products	'
Derivative [Line Items]	'
Number of derivative instruments held (in instrument)	6
Derivative notional amount	$60,600,000