Valley National Bancorp (VLY) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	6-May-15
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	VLY
Entity Registrant Name	VALLEY NATIONAL BANCORP
Entity Central Index Key	714310
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		232,525,119

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Assets
Cash and due from banks	$394,002	$462,569
Interest bearing deposits with banks	370,712	367,838
Investment securities:
Held to maturity (fair value of $1,868,625 at March 31, 2015 and $1,815,976 at December 31, 2014)	1,825,819	1,778,316
Available for sale	843,518	886,970
Trading securities	0	14,233
Total investment securities	2,669,337	2,679,519
Loans held for sale, at fair value	3,648	24,295
Non-covered loans	13,550,735	13,262,022
Covered loans	183,726	211,891
Less: Allowance for loan losses	-102,631	-102,353
Net loans	13,631,830	13,371,560
Premises and equipment, net	281,236	282,997
Bank owned life insurance	377,404	375,640
Accrued interest receivable	56,590	57,333
Due from customers on acceptances outstanding	2,881	4,197
FDIC loss-share receivable	7,608	13,848
Goodwill	577,534	575,892
Other intangible assets, net	35,024	38,775
Other assets	572,204	539,392
Total Assets	18,980,010	18,793,855
Liabilities
Non-interest bearing	4,329,265	4,235,515
Interest bearing:
Savings, NOW and money market	7,115,243	7,056,133
Time	2,772,235	2,742,468
Total deposits	14,216,743	14,034,116
Short-term borrowings	133,866	146,781
Long-term borrowings	2,529,073	2,526,408
Junior subordinated debentures issued to capital trusts	41,292	41,252
Bank acceptances outstanding	2,881	4,197
Accrued expenses and other liabilities	189,002	178,084
Total Liabilities	17,112,857	16,930,838
Shareholders’ Equity
Preferred stock, (no par value, authorized 30,000,000 shares; none issued)	0	0
Common stock, (no par value, authorized 332,023,233 shares; issued 232,616,426 shares at March 31, 2015 and 232,127,098 shares at December 31, 2014)	81,170	81,072
Surplus	1,696,834	1,693,752
Retained earnings	135,571	130,845
Accumulated other comprehensive loss	-44,662	-42,495
Treasury stock, at cost (188,318 common shares at March 31, 2015 and 16,123 common shares at December 31, 2014)	-1,760	-157
Total Shareholders’ Equity	1,867,153	1,863,017
Total Liabilities and Shareholders’ Equity	$18,980,010	$18,793,855

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]
Held to maturity, fair value	$1,868,625	$1,815,976
Preferred stock, par value (in usd per share)
Preferred stock, shares authorized (in shares)	30,000,000	30,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)
Common stock, shares authorized (in shares)	332,023,233	332,023,233
Common stock, shares issued (in shares)	232,616,426	232,127,098
Treasury stock, shares (in shares)	188,318	16,123

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Interest Income
Interest and fees on loans	$150,482	$131,079
Interest and dividends on investment securities:
Taxable	14,932	16,456
Tax-exempt	3,612	3,686
Dividends	1,739	1,790
Interest on federal funds sold and other short-term investments	220	27
Total interest income	170,985	153,038
Interest Expense
Savings, NOW and money market	5,995	4,281
Time	7,974	6,532
Interest on short-term borrowings	94	318
Interest on long-term borrowings and junior subordinated debentures	24,836	27,883
Total interest expense	38,899	39,014
Net Interest Income	132,086	114,024
Provision for credit losses	0	3,998
Net Interest Income After Provision for Credit Losses	132,086	110,026
Non-Interest Income
Trust and investment services	2,494	2,442
Insurance commissions	4,205	4,498
Service charges on deposit accounts	5,290	5,751
Gains (losses) on securities transactions, net	2,416	-8
Fees from loan servicing	1,603	1,670
Gains on sales of loans, net	598	913
Gains (losses) on sales of assets, net	281	-148
Bank owned life insurance	1,764	1,408
Change in FDIC loss-share receivable	-3,920	-76
Other	3,914	4,288
Total non-interest income	18,645	20,738
Non-Interest Expense
Salary and employee benefits expense	56,712	48,088
Net occupancy and equipment expense	22,200	20,724
FDIC insurance assessment	3,792	3,287
Amortization of other intangible assets	2,393	2,351
Professional and legal fees	3,341	3,678
Amortization of tax credit investments	4,496	3,716
Advertising	1,729	617
Other	13,455	13,638
Total non-interest expense	108,118	96,099
Income Before Income Taxes	42,613	34,665
Income tax expense	12,272	830
Net Income	$30,341	$33,835
Earnings Per Common Share:
Basic (in usd per share)	$0.13	$0.17
Diluted (in usd per share)	$0.13	$0.17
Cash Dividends Declared per Common Share (in usd per share)	$0.11	$0.11
Weighted Average Number of Common Shares Outstanding:
Basic (in shares)	232,338,775	200,128,384
Diluted (in shares)	232,341,921	200,128,384

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$30,341	$33,835
Other comprehensive income, net of tax:
Net gains arising during the period	3,936	7,216
Less reclassification adjustment for net (gains) losses included in net income	-1,409	5
Total	2,527	7,221
Non-credit impairment losses on available for sale securities
Net change in non-credit impairment losses on securities	-421	142
Less reclassification adjustment for accretion of credit impairment losses included in net income	-84	-115
Total	-505	27
Unrealized gains and losses on derivatives (cash flow hedges)
Net losses on derivatives arising during the period	-5,259	-3,662
Less reclassification adjustment for net losses included in net income	951	965
Total	-4,308	-2,697
Defined benefit pension plan
Amortization of net loss	119	37
Total other comprehensive (loss) income	-2,167	4,588
Total comprehensive income	$28,174	$38,423

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$30,341	$33,835
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,078	4,972
Stock-based compensation	2,479	2,178
Provision for credit losses	0	3,998
Net amortization of premiums and accretion of discounts on securities and borrowings	8,371	6,715
Amortization of other intangible assets	2,393	2,351
(Gains) losses on securities transactions, net	-2,416	8
Proceeds from sales of loans held for sale	38,568	32,771
Gains on sales of loans, net	-598	-913
Originations of loans held for sale	-17,716	-26,984
(Gains) losses on sales of assets, net	-281	148
FDIC loss-share receivable (excluding reimbursements)	3,920	76
Net change in:
Trading securities	14,233	9
Cash surrender value of bank owned life insurance	-1,764	-1,408
Accrued interest receivable	743	-322
Other assets	-37,584	15,010
Accrued expenses and other liabilities	8,104	-37,242
Net cash provided by operating activities	53,871	35,202
Cash flows from investing activities:
Net loan originations	-122,279	-150,592
Loans purchased	-139,935	-19,084
Investment securities held to maturity:
Purchases	-145,973	-177,462
Sales	11,666	0
Maturities, calls and principal repayments	85,798	93,818
Investment securities available for sale:
Purchases	-8,034	-5,964
Sales	13,974	0
Maturities, calls and principal repayments	38,678	50,081
Proceeds from sales of real estate property and equipment	4,551	5,977
Purchases of real estate property and equipment	-3,216	-5,673
Reimbursements from the FDIC	1,954	1,424
Net cash used in investing activities	-262,816	-207,475
Cash flows from financing activities:
Net change in deposits	182,627	-51,277
Net change in short-term borrowings	-12,915	255,655
Cash dividends paid to common shareholders	-25,512	-21,957
Common stock (purchased) issued, net	-948	286
Net cash provided by financing activities	143,252	182,707
Net change in cash and cash equivalents	-65,693	10,434
Cash and cash equivalents at beginning of year	830,407	369,168
Cash and cash equivalents at end of period	764,714	379,602
Supplemental disclosures of cash flow information:
Interest on deposits and borrowings	41,978	42,133
Federal and state income taxes	29,550	11,368
Supplemental schedule of non-cash investing activities:
Transfer of loans to other real estate owned	1,944	3,508
Transfer of loans to loans held for sale	$0	$27,329

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
	The unaudited consolidated financial statements of Valley National Bancorp, a New Jersey Corporation (Valley), include the accounts of its commercial bank subsidiary, Valley National Bank (the “Bank”), and all of Valley’s direct or indirect wholly-owned subsidiaries. All inter-company transactions and balances have been eliminated. The accounting and reporting policies of Valley conform to U.S. generally accepted accounting principles (U.S. GAAP) and general practices within the financial services industry. In accordance with applicable accounting standards, Valley does not consolidate statutory trusts established for the sole purpose of issuing trust preferred securities and related trust common securities.
	In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly Valley’s financial position, results of operations and cash flows at March 31, 2015 and for all periods presented have been made. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results to be expected for the entire fiscal year.
	In preparing the unaudited consolidated financial statements in conformity with U.S. GAAP, management has made estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated statements of financial condition and results of operations for the periods indicated. Material estimates that are particularly susceptible to change are: the allowance for loan losses; the evaluation of goodwill and other intangible assets, and investment securities for impairment; fair value measurements of assets and liabilities; and income taxes. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual amounts or results could differ significantly from those estimates. The current economic environment has increased the degree of uncertainty inherent in these material estimates.
	Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP and industry practice have been condensed or omitted pursuant to rules and regulations of the SEC. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in Valley’s Annual Report on Form 10-K for the year ended December 31, 2014.

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Business Combinations	Business Combinations
	On November 1, 2014, Valley acquired 1st United Bancorp, Inc. (1st United) and its wholly-owned subsidiary, 1st United Bank, a commercial bank with approximately $1.7 billion in assets, $1.2 billion in loans, and $1.4 billion in deposits, after purchase accounting adjustments. The 1st United acquisition brings to Valley a 20 branch network covering some of the most attractive urban banking markets in Florida, including locations throughout southeast Florida, the Treasure Coast, central Florida and central Gulf Coast regions. The common shareholders of 1st United received 0.89 of a share of Valley common stock for each 1st United share they owned prior to the merger. The total consideration for the acquisition was approximately $300 million, consisting of 30.7 million shares of Valley common stock and $8.9 million of cash consideration paid to 1st United stock option holders.
	During the quarter ended March 31, 2015, Valley revised the estimated fair values of the acquired assets as of the acquisition date as the result of additional information obtained. The adjustments mostly related to the fair value of certain purchased credit-impaired (PCI) loans, core deposit intangibles and deferred tax assets which, on a combined basis, resulted in a $1.6 million increase in goodwill (see Note 10 for amount of goodwill as allocated to Valley's business segments). The fair value estimates for acquired assets and assumed liabilities are subject to change for up to one year after the closing date of the 1st United acquisition, as additional information becomes available.

Earnings_Per_Common_Share

Earnings Per Common Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share
	The following table shows the calculation of both basic and diluted earnings per common share for the three months ended March 31, 2015 and 2014.
		Three Months Ended
		March 31,
		2015		2014
		(in thousands, except for share data)
	Net income	$	30,341	$	33,835
	Basic weighted average number of common shares outstanding	232,338,775		200,128,384
	Plus: Common stock equivalents	3,146		—
	Diluted weighted average number of common shares outstanding	232,341,921		200,128,384
	Earnings per common share:
	Basic	$	0.13	$	0.17
	Diluted	0.13		0.17
	Common stock equivalents represent the dilutive effect of additional common shares issuable upon the assumed vesting or exercise, if applicable, of performance-based restricted stock units, common stock options and warrants to purchase Valley’s common shares. Common stock options and warrants with exercise prices that exceed the average market price of Valley’s common stock during the periods presented have an anti-dilutive effect on the diluted earnings per common share calculation and therefore are excluded from diluted earnings per share calculation. Anti-dilutive common stock options and warrants totaled approximately 6.2 million shares and 6.6 million shares for the three months ended March 31, 2015 and 2014, respectively. Restricted stock units not included in common stock equivalents at March 31, 2015 and 2014 were immaterial.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss
	The following table presents the after-tax changes in the balances of each component of accumulated other comprehensive loss for the three months ended March 31, 2015.
		Components of Accumulated Other Comprehensive Loss												Total
														Accumulated
														Other
														Comprehensive
		Unrealized Gains			Non-credit			Unrealized Gains			Defined			Loss
		and (Losses) on			Impairment			and (Losses) on			Benefit
		Available for Sale			Losses on			Derivatives			Pension Plan
		(AFS) Securities			AFS Securities
		(in thousands)
	Balance at December 31, 2014	$	(1,890	)	$	145		$	(14,532	)	$	(26,218	)	$	(42,495	)
	Other comprehensive income (loss) before reclassifications	3,936			(421		)	(5,259		)	—			(1,744		)
	Amounts reclassified from other comprehensive income (loss)	(1,409		)	(84		)	951			119			(423		)
	Other comprehensive income (loss), net	2,527			(505		)	(4,308		)	119			(2,167		)
	Balance at March 31, 2015	$	637		$	(360	)	$	(18,840	)	$	(26,099	)	$	(44,662	)
	The following table presents amounts reclassified from each component of accumulated other comprehensive loss on a gross and net of tax basis for the three months ended March 31, 2015 and 2014.
		Amounts Reclassified from
		Accumulated Other Comprehensive Loss
		Three Months Ended
		March 31,
	Components of Accumulated Other Comprehensive Loss	2015			2014			Income Statement
								Line Item
		(in thousands)
	Unrealized gains (losses) on AFS securities before tax	$	2,416		$	(8	)	Gains (losses) on securities transactions, net
	Tax effect	(1,007		)	3
	Total net of tax	1,409			(5		)
	Non-credit impairment losses on AFS securities before tax:
	Accretion of credit loss impairment due to an increase in expected cash flows	144			198			Interest and dividends on  investment securities (taxable)
	Tax effect	(60		)	(83		)
	Total net of tax	84			115
	Unrealized losses on derivatives (cash flow hedges) before tax	(1,629		)	(1,648		)	Interest expense
	Tax effect	678			683
	Total net of tax	(951		)	(965		)
	Defined benefit pension plan:
	Amortization of net loss	(205		)	(62		)	*
	Tax effect	86			25
	Total net of tax	(119		)	(37		)
	Total reclassifications, net of tax	$	423		$	(892	)
	*	Amortization of net loss is included in the computation of net periodic pension cost.

New_Authoritative_Accounting_G

New Authoritative Accounting Guidance	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
New Authoritative Accounting Guidance	New Authoritative Accounting Guidance
	Accounting Standards Update (ASU) No. 2015-03, "Interest—Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs" requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in the ASU No. 2015-03. ASU No. 2015-03 will be effective for reporting periods (including interim periods) beginning after December 15, 2015. ASU No. 2015-03 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements.
	ASU No. 2014-14, "Classification of Certain Government-Guaranteed Mortgage Loans Upon Foreclosure" requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: (1) the loan has a government guarantee that is not separable from the loan before foreclosure, (2) 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 (3) 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. ASU No. 2014-14 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements.
	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" requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU No. 2014-12 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements.
	ASU No. 2014-11, "Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures" requires entities to account for repurchase-to-maturity transactions as secured borrowings rather than as sales with forward repurchase agreements and expands disclosure requirements related to certain transfers of financial assets that are accounted for as sales and certain transfers (specifically, repos, securities lending transactions, and repurchase-to-maturity transactions) accounted for as secured borrowings. The accounting-related changes became effective for the first interim or annual period beginning after December 15, 2014. The disclosures for certain transactions accounted for as sales are required for interim and annual periods beginning after December 15, 2014. The disclosures for repos, securities lending transactions, and repos-to-maturity accounted for as secured borrowings are required for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. As of March 31, 2015, all of Valley's repurchase agreements were typical in nature (i.e., not repurchase-to-maturity transactions or repurchase agreements executed as a repurchase financing) and are accounted for as secured borrowings. As such, Valley's adoption of ASU No. 2014-11 did not have a significant impact on its consolidated financial statements.
	ASU No. 2014-04, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure,” 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 became effective for Valley on January 1, 2015 and did not to have a significant impact on its consolidated financial statements. See Note 8 for related disclosures.
	ASU No. 2014-01, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects,” amends existing guidance to permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense or benefit. For those investments in qualified affordable housing projects not accounted for using the proportional amortization method, the investment should be accounted for as an equity method investment or a cost method investment in accordance with Subtopic 970-323. ASU No. 2014-01 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements. See Note 15 for the related disclosures.

Fair_Value_Measurement_of_Asse

Fair Value Measurement of Assets and Liabilities	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurement of Assets and Liabilities	Fair Value Measurement of Assets and Liabilities
	Accounting Standards Codification (ASC) Topic 820, “Fair Value Measurements and Disclosures,” 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 the fair value hierarchy are described below:
		Level 1	Unadjusted exchange quoted prices in active markets for identical assets or liabilities, or identical liabilities traded as assets that the reporting entity has the ability to access at the measurement date.
		Level 2	Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly (i.e., quoted prices on similar assets), for substantially the full term of the asset or liability.
		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).
	Assets and Liabilities Measured at Fair Value on a Recurring and Non-recurring Basis
	The following tables present the assets and liabilities that are measured at fair value on a recurring and nonrecurring basis by level within the fair value hierarchy as reported on the consolidated statements of financial condition at March 31, 2015 and December 31, 2014. The assets presented under “nonrecurring fair value measurements” in the table below are not measured at fair value on an ongoing basis but are subject to fair value adjustments under certain circumstances (e.g., when an impairment loss is recognized).
		March 31,				Fair Value Measurements at Reporting Date Using:
		2015				Quoted Prices				Significant				Significant
						in Active Markets				Other				Unobservable
						for Identical				Observable Inputs				Inputs
						Assets (Level 1)				(Level 2)				(Level 3)
		(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available for sale:
	U.S. Treasury securities	$	50,473			$	50,473			$	—			$	—
	U.S. government agency securities	27,339				—				27,339				—
	Obligations of states and political subdivisions	44,207				—				44,207				—
	Residential mortgage-backed securities	617,715				—				604,277				13,438
	Trust preferred securities	8,538				—				6,508				2,030
	Corporate and other debt securities	74,502				18,272				56,230				—
	Equity securities	20,744				1,473				19,271				—
	Total available for sale	843,518				70,218				757,832				15,468
	Loans held for sale (1)(2)	3,648				—				3,648				—
	Other assets (3)	29,770				—				29,770				—
	Total assets	$	876,936			$	70,218			$	791,250			$	15,468
	Liabilities
	Other liabilities (3)	$	47,120			$	—			$	47,120			$	—
	Total liabilities	$	47,120			$	—			$	47,120			$	—
	Non-recurring fair value measurements:
	Collateral dependent impaired loans (4)	$	9,963			$	—			$	—			$	9,963
	Loan servicing rights	5,657				—				—				5,657
	Foreclosed assets (5)	2,379				—				—				2,379
	Total	$	17,999			$	—			$	—			$	17,999
						Fair Value Measurements at Reporting Date Using:
		December 31,				Quoted Prices				Significant				Significant
		2014				in Active Markets				Other				Unobservable
						for Identical				Observable Inputs				Inputs
						Assets (Level 1)				(Level 2)				(Level 3)
		(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available for sale:
	U.S. Treasury securities	$	49,443			$	49,443			$	—			$	—
	U.S. government agency securities	33,825				—				33,825				—
	Obligations of states and political subdivisions	44,051				—				44,051				—
	Residential mortgage-backed securities	644,276				—				629,696				14,580
	Trust preferred securities	20,537				—				15,808				4,729
	Corporate and other debt securities	74,012				18,241				55,771				—
	Equity securities	20,826				1,337				19,489				—
	Total available for sale	886,970				69,021				798,640				19,309
	Trading securities	14,233				—				14,233				—
	Loans held for sale (1)	17,165				—				17,165				—
	Other assets (3)	20,987				—				20,987				—
	Total assets	$	939,355			$	69,021			$	851,025			$	19,309
	Liabilities
	Other liabilities (3)	$	33,330			$	—			$	33,330			$	—
	Total liabilities	$	33,330			$	—			$	33,330			$	—
	Non-recurring fair value measurements:
	Non-performing loans held for sale	$	7,130			$	—			$	—			$	7,130
	Collateral dependent impaired loans (4)	13,985				—				—				13,985
Loan servicing rights	3,987				—				—				3,987
Foreclosed assets (5)	18,098				—				—				18,098
Total	$	43,200			$	—			$	—			$	43,200
-1	Loans held for sale carried at fair value (which consist of residential mortgages) had contractual unpaid principal balances totaling approximately $3.5 million and $16.9 million at March 31, 2015 and December 31, 2014, respectively.
-2	Gains and losses related to the change in the fair value of loans held for sale is included in net gains on sales of loans within the non-interest income category of our consolidated statements of income and totaled a net gain of $100 thousand and $121 thousand for the three months ended March 31, 2015 and 2014, respectively.
-3	Derivative financial instruments are included in this category.
-4	Excludes PCI loans.
-5	Includes covered real estate owned totaling $3.2 million at December 31, 2014. There were no covered loan transfers into the real estate owned during the three months ended March 31, 2015.
The changes in Level 3 assets measured at fair value on a recurring basis for the three months ended March 31, 2015 and 2014 are summarized below:
	Available for Sale Securities
	Three Months Ended
	March 31,
	2015				2014
	(in thousands)
Balance, beginning of the period	$	19,309			$	28,523
Total net (losses) gains included in other comprehensive income for the period	(792		)		48
Sales	(2,675		)		—
Settlements	(374		)		(1,660		)
Balance, end of the period	$	15,468			$	26,911
No changes in unrealized gains or losses on Level 3 securities held at March 31, 2015 and 2014 were included in earnings during the three months ended March 31, 2015 and 2014. There were no transfers of assets into and out of Level 3, or between Level 1 and Level 2, during the three months ended March 31, 2015 and 2014.
There have been no material changes in the valuation methodologies used at March 31, 2015 from December 31, 2014.
Assets and Liabilities Measured at Fair Value on a Recurring Basis
The following valuation techniques were used for financial instruments measured at fair value on a recurring basis. All the valuation techniques described below apply to the unpaid principal balance excluding any accrued interest or dividends at the measurement date. Interest income and expense 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.
Available for sale and trading securities. All U.S. Treasury securities, certain corporate and other debt securities, and certain common and preferred equity securities (including certain trust preferred securities) are reported at fair value utilizing Level 1 inputs. The majority of other investment securities are reported at fair value utilizing Level 2 inputs. The prices for these instruments are obtained through an independent pricing service or dealer market participants with whom Valley has historically transacted both purchases and sales of investment securities. Prices obtained from these sources include prices derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Management reviews the data and assumptions used in pricing the securities by its third party provider to ensure the highest level of significant inputs are derived from market observable data. For certain securities, the inputs used by either dealer market participants or an independent pricing service may be derived from unobservable market information (Level 3 inputs). In these instances, Valley evaluates the appropriateness and quality of the assumption and the resulting price. In addition, Valley reviews the volume and level of activity for all available for sale and trading securities and attempts to identify transactions which may not be orderly or reflective of a significant level of activity and volume. For securities meeting these criteria, the quoted prices received from either market participants or an independent pricing service may be adjusted, as necessary, to estimate fair value and this results in fair values based on Level 3 inputs. In determining fair value, Valley utilizes unobservable inputs which reflect Valley’s own assumptions about the inputs that market participants would use in pricing each security. In developing its assertion of market participant assumptions, Valley utilizes the best information that is both reasonable and available without undue cost and effort.
In calculating the fair value for the available for sale securities under Level 3, Valley prepared present value cash flow models for certain private label mortgage-backed securities. The cash flows for the residential mortgage-backed securities incorporated the expected cash flow of each security adjusted for default rates, loss severities and prepayments of the individual loans collateralizing the security.
The following table presents quantitative information about Level 3 inputs used to measure the fair value of these securities at March 31, 2015:
Security Type	Valuation		Unobservable		Range		Weighted
	Technique		Input				Average
Private label mortgage-backed securities	Discounted cash flow		Prepayment rate		0.0 - 18.2%		11.1	%
			Default rate		3.0 - 24.9		10.1
			Loss severity		40.0 - 62.9		57.1
Significant increases or decreases in any of the unobservable inputs in the table above in isolation would result in a significantly lower or higher fair value measurement of the securities. Generally, a change in the assumption used for the default rate is accompanied by a directionally similar change in the assumption used for the loss severity and a directionally opposite change in the assumption used for prepayment rates.
For the Level 3 available for sale private label mortgage-backed securities (consisting of 4 securities), cash flow assumptions incorporated independent third party market participant data based on vintage year for each security. The discount rate utilized in determining the present value of cash flows for the mortgage-backed securities was arrived at by combining the yield on orderly transactions for similar maturity government sponsored mortgage-backed securities with (i) the historical average risk premium of similar structured private label securities, (ii) a risk premium reflecting current market conditions, including liquidity risk and (iii) if applicable, a forecasted loss premium derived from the expected cash flows of each security. The estimated cash flows for each private label mortgage-backed security were then discounted at the aforementioned effective rate to determine the fair value. The quoted prices received from either market participants or independent pricing services are weighted with the internal price estimate to determine the fair value of each instrument.
For the Level 3 available for sale pooled trust preferred securities (consisting of 1 security at March 31, 2015 and 2 securities at December 31, 2014), the resulting estimated future cash flows were discounted at a yield determined by reference to similarly structured securities for which observable orderly transactions occurred. The discount rate for each security was applied using a pricing matrix based on credit, security type and maturity characteristics to determine the fair value. The fair value calculation is received from an independent valuation adviser. In validating the fair value calculation from an independent valuation adviser, Valley reviews the accuracy of the inputs and the appropriateness of the unobservable inputs utilized in the valuation to ensure the fair value calculation is reasonable from a market participant perspective.
Loans held for sale. The conforming residential mortgage loans originated for sale are reported at fair value using Level 2 inputs. The fair values were calculated utilizing quoted prices for similar assets in active markets. To determine these fair values, the mortgages held for sale are put into multiple tranches, or pools, based on the coupon rate and maturity of each mortgage. The market prices for each tranche are obtained from both Fannie Mae and Freddie Mac. The market prices represent a delivery price, which reflects the underlying price each institution would pay Valley for an immediate sale of an aggregate pool of mortgages. The market prices received from Fannie Mae and Freddie Mac are then averaged and interpolated or extrapolated, where required, to calculate the fair value of each tranche. Depending upon the time elapsed since the origination of each loan held for sale, non-performance risk and changes therein were addressed in the estimate of fair value based upon the delinquency data provided to both Fannie Mae and Freddie Mac for market pricing and changes in market credit spreads. Non-performance risk did not materially impact the fair value of mortgage loans held for sale at March 31, 2015 and December 31, 2014 based on the short duration these assets were held, and the high credit quality of these loans.
Derivatives. Derivatives are reported at fair value utilizing Level 2 inputs. The fair value of Valley’s derivatives are determined using third party prices that are based on discounted cash flow analysis using observed market inputs, such as the LIBOR and Overnight Index Swap rate curves. The fair value of mortgage banking derivatives, consisting of interest rate lock commitments to fund residential mortgage loans and forward commitments for the future delivery of such loans (including certain loans held for sale at March 31, 2015), is determined based on the current market prices for similar instruments provided by Freddie Mac and Fannie Mae. The fair values of most of the derivatives incorporate credit valuation adjustments, which consider the impact of any credit enhancements to the contracts, to account for potential nonperformance risk of Valley and its counterparties. The credit valuation adjustments were not significant to the overall valuation of Valley’s derivatives at March 31, 2015 and December 31, 2014.
Assets and Liabilities Measured at Fair Value on a Non-recurring Basis
The following valuation techniques were used for certain non-financial assets measured at fair value on a nonrecurring basis, including non-performing loans held for sale carried at estimated fair value (less selling costs) when less than the unamortized cost, impaired loans reported at the fair value of the underlying collateral, loan servicing rights, other real estate owned and other repossessed assets, which are reported at fair value upon initial recognition or subsequent impairment as described below.
Non-performing loans held for sale. At December 31, 2014, non-performing loans held for sale consisted of one commercial real estate loan that was transferred to the loans held for sale account during the first quarter of 2014. At December 31, 2014, the loan was re-measured and reported at fair value of $7.1 million based upon a non-binding sale agreement. This sale transaction was completed during the first quarter of 2015.
Impaired loans. Certain impaired loans are reported at the fair value of the underlying collateral if repayment is expected solely from the collateral and are commonly referred to as “collateral dependent impaired loans.” Collateral values are estimated using Level 3 inputs, consisting of individual appraisals that are significantly adjusted based on certain discounting criteria. At March 31, 2015, appraisals were discounted up to 38.2 percent based on specific market data by location and property type. During the quarter ended March 31, 2015, collateral dependent impaired loans were individually re-measured and reported at fair value through direct loan charge-offs to the allowance for loan losses and/or a specific valuation allowance allocation based on the fair value of the underlying collateral. The collateral dependent loan charge-offs to the allowance for loan losses totaled $850 thousand and $1.0 million for the three months ended March 31, 2015 and 2014, respectively. At March 31, 2015, collateral dependent impaired loans with a total recorded investment of $11.9 million were reduced by specific valuation allowance allocations totaling $1.9 million to a reported total net carrying amount of $10.0 million.
Loan servicing rights. Fair values for each risk-stratified group of loan servicing rights are calculated using a fair value model from a third party vendor that requires inputs that are both significant to the fair value measurement and unobservable (Level 3). The fair value model is based on various assumptions, including but not limited to, prepayment speeds, internal rate of return (“discount rate”), servicing cost, ancillary income, float rate, tax rate, and inflation. The prepayment speed and the discount rate are considered two of the most significant inputs in the model. At March 31, 2015, the fair value model used prepayment speeds (stated as constant prepayment rates) from 0 percent up to 25 percent and a discount rate of 8.0 percent for the valuation of the loan servicing rights. A significant degree of judgment is involved in valuing the loan servicing rights using Level 3 inputs. The use of different assumptions could have a significant positive or negative effect on the fair value estimate. Impairment charges are recognized on loan servicing rights when the amortized cost of a risk-stratified group of loan servicing rights exceeds the estimated fair value. Valley recognized net impairment charges totaling $84 thousand for the three months ended March 31, 2015 as compared to approximately $100 thousand of net recoveries of impairment charges for three months ended March 31, 2014.
Foreclosed assets. Certain foreclosed assets (consisting of other real estate owned and other repossessed assets), upon initial recognition and transfer from loans, are re-measured and reported at fair value through a charge-off to the allowance for loan losses based upon the fair value of the foreclosed assets. The fair value of a foreclosed asset, upon initial recognition, is typically estimated using Level 3 inputs, consisting of an appraisal that is adjusted based on certain discounting criteria, similar to the criteria used for impaired loans described above. The appraisals of foreclosed assets were discounted up to 4.8 percent at March 31, 2015. At March 31, 2015, foreclosed assets included $2.4 million of assets that were measured at fair value upon initial recognition or subsequently re-measured during the quarter ended March 31, 2015. The foreclosed assets charge-offs to the allowance for loan losses totaled $457 thousand and $1.5 million for the three months ended March 31, 2015 and 2014, respectively. The re-measurement of foreclosed assets at fair value subsequent to their initial recognition resulted in an immaterial net loss for the three months ended March 31, 2015 and a net loss of $1.8 million within non-interest expense for the three months ended March 31, 2014.
Other Fair Value Disclosures
ASC Topic 825, “Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis.
The fair value estimates presented in the following table were based on pertinent market data and relevant information on the financial instruments available as of the valuation date. These estimates do not reflect any premium or discount that could result from offering for sale at one time the entire portfolio of financial instruments. Because no market exists for a portion of the financial instruments, fair value estimates may be 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 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. For instance, Valley has certain fee-generating business lines (e.g., its mortgage servicing operation, trust and investment management departments) that were not considered in these estimates since these activities are not financial instruments. In addition, the tax implications 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 any of the estimates.
The carrying amounts and estimated fair values of financial instruments not measured and not reported at fair value on the consolidated statements of financial condition at March 31, 2015 and December 31, 2014 were as follows:
	Fair Value		31-Mar-15								31-Dec-14
	Hierarchy		Carrying				Fair Value				Carrying				Fair Value
			Amount								Amount
			(in thousands)
Financial assets
Cash and due from banks	Level 1		$	394,002			$	394,002			$	462,569			$	462,569
Interest bearing deposits with banks	Level 1		370,712				370,712				367,838				367,838
Investment securities held to maturity:
U.S. Treasury securities	Level 1		139,087				153,676				139,121				151,300
U.S. government agency securities	Level 2		13,630				14,040				14,081				14,385
Obligations of states and political subdivisions	Level 2		490,757				512,916				500,018				519,693
Residential mortgage-backed securities	Level 2		1,059,278				1,074,679				986,992				998,981
Trust preferred securities	Level 2		98,458				86,080				98,456				86,243
Corporate and other debt securities	Level 2		24,609				27,234				39,648				45,374
Total investment securities held to maturity			1,825,819				1,868,625				1,778,316				1,815,976
Net loans	Level 3		13,631,830				13,419,880				13,371,560				13,085,830
Accrued interest receivable	Level 1		56,590				56,590				57,333				57,333
Federal Reserve Bank and Federal Home Loan Bank stock (1)	Level 1		135,032				135,032				133,117				133,117
Financial liabilities
Deposits without stated maturities	Level 1		11,444,508				11,444,508				11,291,648				11,291,648
Deposits with stated maturities	Level 2		2,772,235				2,837,408				2,742,468				2,807,522
Short-term borrowings	Level 1		133,866				133,866				146,781				146,781
Long-term borrowings	Level 2		2,529,073				2,751,489				2,526,408				2,738,122
Junior subordinated debentures issued to capital trusts	Level 2		41,292				43,824				41,252				44,584
Accrued interest payable (2)	Level 1		12,448				12,448				15,526				15,526
-1	Included in other assets.
-2	Included in accrued expenses and other liabilities.
The following methods and assumptions were used to estimate the fair value of other financial assets and financial liabilities in the table above:
Cash and due from banks and interest bearing deposits with banks. The carrying amount is considered to be a reasonable estimate of fair value because of the short maturity of these items.
Investment securities held to maturity. Fair values are based on prices obtained through an independent pricing service or dealer market participants with whom Valley has historically transacted both purchases and sales of investment securities. Prices obtained from these sources include prices derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things (Level 2 inputs). Additionally, Valley reviews the volume and level of activity for all classes of held to maturity securities and attempts to identify transactions which may not be orderly or reflective of a significant level of activity and volume. For securities meeting these criteria, the quoted prices received from either market participants or an independent pricing service may be adjusted, as necessary. If applicable, the adjustment to fair value is derived based on present value cash flow model projections prepared by Valley utilizing assumptions similar to those incorporated by market participants.
Loans. Fair values of loans are estimated by discounting the projected future cash flows using market discount rates that reflect the credit and interest-rate risk inherent in the loan. The discount rate is a product of both the applicable index and credit spread, subject to the estimated current new loan interest rates. The credit spread component is static for all maturities and may not necessarily reflect the value of estimating all actual cash flows re-pricing. Projected future cash flows are calculated based upon contractual maturity or call dates, projected repayments and prepayments of principal. Fair values estimated in this manner do not fully incorporate an exit-price approach to fair value, but instead are based on a comparison to current market rates for comparable loans.
Accrued interest receivable and payable. The carrying amounts of accrued interest approximate their fair value due to the short-term nature of these items.
Federal Reserve Bank and Federal Home Loan Bank stock. Federal Reserve Bank and FHLB stock are non-marketable equity securities and are reported at their redeemable carrying amounts, which approximate the fair value.
Deposits. The carrying amounts of deposits without stated maturities (i.e., non-interest bearing, savings, NOW, and money market deposits) approximate their estimated fair value. The fair value of time deposits is based on the discounted value of contractual cash flows using estimated rates currently offered for alternative funding sources of similar remaining maturity.
Short-term and long-term borrowings. The carrying amounts of certain short-term borrowings, including securities sold under agreements to repurchase (and from time to time, federal funds purchased and FHLB borrowings) approximate their fair values because they frequently re-price to a market rate. The fair values of other short-term and long-term borrowings are estimated by obtaining quoted market prices of the identical or similar financial instruments when available. When quoted prices are unavailable, the fair values of the borrowings are estimated by discounting the estimated future cash flows using current market discount rates of financial instruments with similar characteristics, terms and remaining maturity.
Junior subordinated debentures issued to capital trusts. The fair value of debentures issued to capital trusts is estimated utilizing the income approach, whereby the expected cash flows, over the remaining estimated life of the security, are discounted using Valley’s credit spread over the current yield on a similar maturity of U.S. Treasury security or the three-month LIBOR for the variable rate indexed debentures (Level 2 inputs). The credit spread used to discount the expected cash flows was calculated based on the median current spreads for all fixed and variable publicly traded trust preferred securities issued by banks.

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities
	Held to Maturity
	The amortized cost, gross unrealized gains and losses and fair value of securities held to maturity at March 31, 2015 and December 31, 2014 were as follows:
		Amortized			Gross			Gross			Fair Value
		Cost			Unrealized			Unrealized
					Gains			Losses
		(in thousands)
	31-Mar-15
	U.S. Treasury securities	$	139,087		$	14,589		$	—		$	153,676
	U.S. government agency securities	13,630			410			—			14,040
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	196,849			10,245			(152		)	206,942
	Municipal bonds	293,908			12,152			(86		)	305,974
	Total obligations of states and political subdivisions	490,757			22,397			(238		)	512,916
	Residential mortgage-backed securities	1,059,278			19,205			(3,804		)	1,074,679
	Trust preferred securities	98,458			104			(12,482		)	86,080
	Corporate and other debt securities	24,609			2,625			—			27,234
	Total investment securities held to maturity	$	1,825,819		$	59,330		$	(16,524	)	$	1,868,625
	31-Dec-14
	U.S. Treasury securities	$	139,121		$	12,179		$	—		$	151,300
	U.S. government agency securities	14,081			304			—			14,385
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	197,440			9,410			(412		)	206,438
	Municipal bonds	302,578			10,955			(278		)	313,255
	Total obligations of states and political subdivisions	500,018			20,365			(690		)	519,693
	Residential mortgage-backed securities	986,992			18,233			(6,244		)	998,981
	Trust preferred securities	98,456			167			(12,380		)	86,243
	Corporate and other debt securities	39,648			5,726			—			45,374
	Total investment securities held to maturity	$	1,778,316		$	56,974		$	(19,314	)	$	1,815,976
	The age of unrealized losses and fair value of related securities held to maturity at March 31, 2015 and December 31, 2014 were as follows:
		Less than						More than						Total
		Twelve Months						Twelve Months
		Fair Value			Unrealized			Fair Value			Unrealized			Fair Value		Unrealized
					Losses						Losses					Losses
		(in thousands)
	31-Mar-15
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	$	22,194		$	(145	)	$	1,961		$	(7	)	$	24,155	$	(152	)
	Municipal bonds	11,876			(79		)	10,253			(7		)	22,129		(86		)
	Total obligations of states and political subdivisions	34,070			(224		)	12,214			(14		)	46,284		(238		)
	Residential mortgage-backed securities	211,113			(1,178		)	177,774			(2,626		)	388,887		(3,804		)
	Trust preferred securities	4,825			(16		)	66,111			(12,466		)	70,936		(12,482		)
	Total	$	250,008		$	(1,418	)	$	256,099		$	(15,106	)	$	506,107	$	(16,524	)
	31-Dec-14
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	$	4,927		$	(50	)	$	19,050		$	(362	)	$	23,977	$	(412	)
	Municipal bonds	—			—			28,815			(278		)	28,815		(278		)
	Total obligations of states and political subdivisions	4,927			(50		)	47,865			(640		)	52,792		(690		)
	Residential mortgage-backed securities	107,357			(563		)	276,580			(5,681		)	383,937		(6,244		)
	Trust preferred securities	—			—			66,194			(12,380		)	66,194		(12,380		)
	Total	$	112,284		$	(613	)	$	390,639		$	(18,701	)	$	502,923	$	(19,314	)
	The unrealized losses on investment securities held to maturity are primarily due to changes in interest rates (including, in certain cases, changes in credit spreads) and, in some cases, lack of liquidity in the marketplace. The total number of security positions in the securities held to maturity portfolio in an unrealized loss position at March 31, 2015 was 72 as compared to 57 at December 31, 2014.
	The unrealized losses within the residential mortgage-backed securities category of the available for sale portfolio at March 31, 2015 largely related to several investment grade securities mainly issued by Ginnie Mae.
	The unrealized losses existing for more than twelve months for trust preferred securities at March 31, 2015 primarily related to four non-rated single-issuer trust preferred securities issued by bank holding companies. All single-issuer trust preferred securities classified as held to maturity are paying in accordance with their terms, have no deferrals of interest or defaults and, if applicable, the issuers meet the regulatory capital requirements to be considered “well-capitalized institutions” at March 31, 2015.
	Management does not believe that any individual unrealized loss as of March 31, 2015 included in the table above represents other-than-temporary impairment as management mainly attributes the declines in fair value to changes in interest rates and market volatility, not credit quality or other factors. Based on a comparison of the present value of expected cash flows to the amortized cost, management believes there are no credit losses on these securities. Valley does not have the intent to sell, nor is it more likely than not that Valley will be required to sell, the securities contained in the table above before the recovery of their amortized cost basis or maturity.
	During the quarter ended March 31, 2015, Valley sold one corporate debt security classified as held to maturity with amortized costs of $9.8 million. See "Realized Gains and Losses" section below for further details regarding this transaction.
	As of March 31, 2015, the fair value of investments held to maturity that were pledged to secure public deposits, repurchase agreements, lines of credit, and for other purposes required by law, was $902.0 million.
	The contractual maturities of investments in debt securities held to maturity at March 31, 2015 are set forth in the table below. Maturities may differ from contractual maturities in residential mortgage-backed securities because the mortgages underlying the securities may be prepaid without any penalties. Therefore, residential mortgage-backed securities are not included in the maturity categories in the following summary.
		31-Mar-15
		Amortized			Fair
		Cost			Value
		(in thousands)
	Due in one year	$	55,838		$	55,861
	Due after one year through five years	63,369			67,976
Due after five years through ten years	330,116			352,827
Due after ten years	317,218			317,282
Residential mortgage-backed securities	1,059,278			1,074,679
Total investment securities held to maturity	$	1,825,819		$	1,868,625
Actual maturities of debt securities may differ from those presented above since certain obligations provide the issuer the right to call or prepay the obligation prior to scheduled maturity without penalty.
The weighted-average remaining expected life for residential mortgage-backed securities held to maturity was 6.7 years at March 31, 2015.
Available for Sale
The amortized cost, gross unrealized gains and losses and fair value of securities available for sale at March 31, 2015 and December 31, 2014 were as follows:
	Amortized			Gross			Gross			Fair Value
	Cost			Unrealized			Unrealized
				Gains			Losses
	(in thousands)
31-Mar-15
U.S. Treasury securities	$	51,058		$	17		$	(602	)	$	50,473
U.S. government agency securities	26,721			712			(94		)	27,339
Obligations of states and political subdivisions:
Obligations of states and state agencies	11,101			118			—			11,219
Municipal bonds	33,331			97			(440		)	32,988
Total obligations of states and political subdivisions	44,432			215			(440		)	44,207
Residential mortgage-backed securities	615,880			6,081			(4,246		)	617,715
Trust preferred securities*	10,641			—			(2,103		)	8,538
Corporate and other debt securities	73,241			1,712			(451		)	74,502
Equity securities	21,071			784			(1,111		)	20,744
Total investment securities available for sale	$	843,044		$	9,521		$	(9,047	)	$	843,518
31-Dec-14
U.S. Treasury securities	$	51,063		$	2		$	(1,622	)	$	49,443
U.S. government agency securities	33,163			748			(86		)	33,825
Obligations of states and political subdivisions:
Obligations of states and state agencies	11,160			—			(24		)	11,136
Municipal bonds	33,340			127			(552		)	32,915
Total obligations of states and political subdivisions	44,500			127			(576		)	44,051
Residential mortgage-backed securities	643,382			5,854			(4,960		)	644,276
Trust preferred securities*	23,194			296			(2,953		)	20,537
Corporate and other debt securities	73,585			1,645			(1,218		)	74,012
Equity securities	21,071			671			(916		)	20,826
Total investment securities available for sale	$	889,958		$	9,343		$	(12,331	)	$	886,970
*	Includes two and three pooled trust preferred securities, principally collateralized by securities issued by banks and insurance companies, at March 31, 2015 and December 31, 2014, respectively.
The age of unrealized losses and fair value of related securities available for sale at March 31, 2015 and December 31, 2014 were as follows:
	Less than						More than						Total
	Twelve Months						Twelve Months
	Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
	Value			Losses			Value			Losses			Value		Losses
	(in thousands)
31-Mar-15
U.S. Treasury securities	$	49,520		$	(602	)	$	—		$	—		$	49,520	$	(602	)
U.S. government agency securities	—			—			5,293			(94		)	5,293		(94		)
Obligations of states and political subdivisions:
Municipal bonds	19,072			(204		)	11,044			(236		)	30,116		(440		)
Total obligations of states and political subdivisions	19,072			(204		)	11,044			(236		)	30,116		(440		)
Residential mortgage-backed securities	32,256			(518		)	216,266			(3,728		)	248,522		(4,246		)
Trust preferred securities	—			—			8,538			(2,103		)	8,538		(2,103		)
Corporate and other debt securities	18,987			(43		)	27,622			(408		)	46,609		(451		)
Equity securities	46			(3		)	14,533			(1,108		)	14,579		(1,111		)
Total	$	119,881		$	(1,370	)	$	283,296		$	(7,677	)	$	403,177	$	(9,047	)
31-Dec-14
U.S. Treasury securities	$	—		$	—		$	48,504		$	(1,622	)	$	48,504	$	(1,622	)
U.S. government agency securities	—			—			5,442			(86		)	5,442		(86		)
Obligations of states and political subdivisions:
Obligations of states and state agencies	—			—			11,136			(24		)	11,136		(24		)
Municipal bonds	13,337			(426		)	14,637			(126		)	27,974		(552		)
Total obligations of states and political subdivisions	13,337			(426		)	25,773			(150		)	39,110		(576		)
Residential mortgage-backed securities	57,543			(121		)	244,910			(4,839		)	302,453		(4,960		)
Trust preferred securities	2,210			(117		)	12,085			(2,836		)	14,295		(2,953		)
Corporate and other debt securities	27,500			(294		)	28,269			(924		)	55,769		(1,218		)
Equity securities	158			(41		)	14,769			(875		)	14,927		(916		)
Total	$	100,748		$	(999	)	$	379,752		$	(11,332	)	$	480,500	$	(12,331	)
The unrealized losses on investment securities available for sale are primarily due to changes in interest rates (including, in certain cases, changes in credit spreads) and, in some cases, lack of liquidity in the marketplace. The total number of security positions in the securities available for sale portfolio in an unrealized loss position at March 31, 2015 was 83 as compared to 96 at December 31, 2014.
The unrealized losses within the residential mortgage-backed securities category of the available for sale portfolio at March 31, 2015 largely related to several investment grade residential mortgage-backed securities mainly issued by Ginnie Mae.
The unrealized losses for trust preferred securities at March 31, 2015 for more than twelve months in the table above largely relate to 2 pooled trust preferred securities with an amortized cost of $10.6 million and a fair value of $8.5 million. One of the one pooled trust preferred securities had a unrealized loss of $1.4 million and an investment grade rating at March 31, 2015. The second pooled trust preferred security had a non-investment grade rating and was initially other-than-temporarily impaired in 2008 with additional estimated credit losses recognized in 2009 and 2011, and is not accruing interest. All of the single-issuer trust preferred securities are paying in accordance with their terms and have no deferrals of interest or defaults and, if applicable, meet the regulatory capital requirements to be considered “well-capitalized institutions” at March 31, 2015.
Management does not believe that any individual unrealized loss as of March 31, 2015 represents an other-than-temporary impairment, as management mainly attributes the declines in value to changes in interest rates and market volatility, not credit quality or other factors. Based on a comparison of the present value of expected cash flows to the amortized cost, management believes there are no credit losses on these securities. Valley has no intent to sell, nor is it more likely than not that Valley will be required to sell, the securities contained in the table above before the recovery of their amortized cost basis or, if necessary, maturity.
As of March 31, 2015, the fair value of securities available for sale that were pledged to secure public deposits, repurchase agreements, lines of credit, and for other purposes required by law, was $396.7 million.
The contractual maturities of investment securities available for sale at March 31, 2015 are set forth in the following table. Maturities may differ from contractual maturities in residential mortgage-backed securities because the mortgages underlying the securities may be prepaid without any penalties. Therefore, residential mortgage-backed securities are not included in the maturity categories in the following summary.
	31-Mar-15
	Amortized			Fair
	Cost			Value
	(in thousands)
Due after one year through five years	$	65,316		$	66,915
Due after five years through ten years	79,110			78,201
Due after ten years	61,667			59,943
Residential mortgage-backed securities	615,880			617,715
Equity securities	21,071			20,744
Total investment securities available for sale	$	843,044		$	843,518
Actual maturities of debt securities may differ from those presented above since certain obligations provide the issuer the right to call or prepay the obligation prior to scheduled maturity without penalty.
The weighted average remaining expected life for residential mortgage-backed securities available for sale at March 31, 2015 was 5.2 years.
Other-Than-Temporary Impairment Analysis
Valley records impairment charges on its investment securities when the decline in fair value is considered other-than-temporary. Numerous factors, including lack of liquidity for re-sales of certain investment securities; decline in the creditworthiness of the issuer; absence of reliable pricing information for investment securities; adverse changes in business climate; adverse actions by regulators; prolonged decline in value of equity investments; or unanticipated changes in the competitive environment could have a negative effect on Valley’s investment portfolio and may result in other-than-temporary impairment on certain investment securities in future periods. Valley’s investment portfolios include private label mortgage-backed securities, trust preferred securities principally issued by bank holding companies (including two pooled trust preferred securities), corporate bonds primarily issued by banks, and perpetual preferred and common equity securities issued by banks. These investments may pose a higher risk of future impairment charges by Valley as a result of the unpredictable nature of the U.S. economy and its potential negative effect on the future performance of the security issuers and, if applicable, the underlying mortgage loan collateral of the security.
There were no other-than-temporary impairment losses on securities recognized in earnings for the three months ended March 31, 2015 and 2014. At March 31, 2015, four previously impaired private label mortgage-backed securities (prior to December 31, 2012) had a combined amortized cost and fair value of $13.3 million and $13.4 million, respectively, while one previously impaired pooled trust preferred security had a combined amortized cost and fair value of $2.8 million and $2.0 million, respectively. The previously impaired pooled trust preferred security was not accruing interest during the three months ended March 31, 2015 and 2014. Additionally, one previously impaired pooled trust preferred security was sold during the first quarter of 2015 for an immaterial gain. See the table and discussion below for additional information.
The following table presents the changes in the credit loss component of cumulative other-than-temporary impairment losses on debt securities classified as either held to maturity or available for sale that Valley has previously recognized in earnings, for which a portion of the impairment loss (non-credit factors) was recognized in other comprehensive income for the three months ended March 31, 2015 and 2014:
	Three Months Ended
	March 31,
	2015			2014
	(in thousands)
Balance, beginning of period	$	8,947		$	9,990
Accretion of credit loss impairment due to an increase in expected cash flows	(144		)	(198		)
Sales	(2,382		)	—
Balance, end of period	$	6,421		$	9,792
The credit loss component of the impairment loss represents the difference between the present value of expected future cash flows and the amortized cost basis of the security prior to considering credit losses. The beginning balance represents the credit loss component for debt securities for which other-than-temporary impairment occurred prior to each period presented. Other-than-temporary impairments recognized in earnings for credit impaired debt securities are presented as additions in two components based upon whether the current period is the first time the debt security was credit impaired (initial credit impairment) or is not the first time the debt security was credit impaired (subsequent credit impairment). The credit loss component is reduced if Valley sells, intends to sell or believes it will be required to sell previously credit impaired debt securities. Additionally, the credit loss component is reduced if (i) Valley receives cash flows in excess of what it expected to receive over the remaining life of the credit impaired debt security, (ii) the security matures or (iii) the security is fully written down.
Realized Gains and Losses
Gross gains (losses) realized on sales, maturities and other securities transactions related to investment securities included in earnings for the three months ended March 31, 2015 and 2014 were as follows:
	Three Months Ended
	March 31,
	2015			2014
	(in thousands)
Sales transactions:
Gross gains	$	3,274		$	—
Gross losses	(947		)	—
	$	2,327		$	—
Maturities and other securities transactions:
Gross gains	$	89		$	1
Gross losses	—			(9		)
	$	89		$	(8	)
Total gains on securities transactions, net	$	2,416		$	(8	)
Valley recognized gross gains from sales transactions of investment securities totaling $3.3 million for the three months ended March 31, 2015 due to the sale of corporate debt securities and trust preferred securities with amortized cost totaling $25.9 million. These transactions included a corporate debt security classified as held to maturity and a previously impaired pooled trust preferred security with amortized costs of $9.8 million and $2.6 million, respectively. Additionally, Valley recognized $947 thousand of gross losses during the first quarter of 2015 due to the sale of mostly trust preferred securities with a total amortized cost of $8.3 million. The vast majority of the sales of investment securities were due to a one-time investment portfolio re-balancing during the first quarter due to changes in our regulatory capital calculation under the new Basel III regulatory capital reform (effective for Valley on January 1, 2015). Under ASC Topic 320, “Investments - Debt and Equity Securities,” the one-time sale of held to maturity securities based upon the change in capital requirements is permitted without tainting the remaining held to maturity investment portfolio.
Trading Securities
The fair value of trading securities (consisting of 2 single-issuer bank trust preferred securities) was $14.2 million at December 31, 2014. During the first quarter of 2015, one of the two securities was redeemed by the issuer and the other security was sold prior to its issuer's call date in April 2015. Both of the securities transactions resulted in an immaterial aggregate net trading loss for the first quarter of 2015 which was included in the other non-interest income category of our consolidated statements of income. Net trading losses were also immaterial for the three months ended March 31, 2014. Interest income on trading securities totaled $213 thousand and $290 thousand for the three months ended March 31, 2015 and 2014, respectively.

Loans

Loans	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Loans	Loans
	The detail of the loan portfolio as of March 31, 2015 and December 31, 2014 was as follows:
		March 31, 2015											December 31, 2014
		Non-PCI				PCI Loans				Total			Non-PCI				PCI Loans				Total
		Loans											Loans
		(in thousands)
	Non-covered loans:
	Commercial and industrial	$	2,094,274			$	267,713			$	2,361,987		$	1,959,927			$	277,371			$	2,237,298
	Commercial real estate:
	Commercial real estate	5,142,588				954,429				6,097,017			5,053,742				978,448				6,032,190
	Construction	483,683				55,254				538,937			476,094				53,869				529,963
	Total commercial real estate loans	5,626,271				1,009,683				6,635,954			5,529,836				1,032,317				6,562,153
	Residential mortgage	2,495,827				89,955				2,585,782			2,419,044				96,631				2,515,675
	Consumer:
	Home equity	394,886				87,379				482,265			400,136				91,609				491,745
	Automobile	1,162,919				44				1,162,963			1,144,780				51				1,144,831
	Other consumer	311,102				10,682				321,784			298,389				11,931				310,320
	Total consumer loans	1,868,907				98,105				1,967,012			1,843,305				103,591				1,946,896
	Total non-covered loans	12,085,279				1,465,456				13,550,735			11,752,112				1,509,910				13,262,022
	Covered loans:
	Commercial and industrial	—				5,940				5,940			—				13,813				13,813
	Commercial real estate	—				108,856				108,856			—				128,691				128,691
	Construction	—				3,077				3,077			—				3,171				3,171
	Residential mortgage	—				62,229				62,229			—				60,697				60,697
	Consumer	—				3,624				3,624			—				5,519				5,519
	Total covered loans	—				183,726				183,726			—				211,891				211,891
	Total loans	$	12,085,279			$	1,649,182			$	13,734,461		$	11,752,112			$	1,721,801			$	13,473,913
	Total non-covered loans are net of unearned discount and deferred loan fees totaling $9.2 million and $9.0 million at March 31, 2015 and December 31, 2014, respectively. The outstanding balances (representing contractual balances owed to Valley) for non-covered PCI loans and covered loans totaled $1.6 billion and $214.9 million at March 31, 2015, respectively, and $1.6 billion and $253.7 million at December 31, 2014, respectively.
	There were no sales of loans from the held for investment portfolio during the three months ended March 31, 2015 and 2014.
	Purchased Credit-Impaired Loans (Including Covered Loans)
	PCI loans, which include loans acquired in FDIC-assisted transactions ("covered loans"), are accounted for in accordance with ASC Subtopic 310-30 and are initially recorded at fair value (as determined by the present value of expected future cash flows) with no valuation allowance (i.e., the allowance for loan losses), and aggregated and accounted for as pools of loans based on common risk characteristics. The difference between the undiscounted cash flows expected at acquisition and the initial carrying amount (fair value) of the PCI loans, or the “accretable yield,” is recognized as interest income utilizing the level-yield method over the life of each pool. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “non-accretable difference,” are not recognized as a yield adjustment, as a loss accrual or a valuation allowance. Reclassifications of the non-accretable difference to the accretable yield may occur subsequent to the loan acquisition dates due to increases in expected cash flows of the loan pools.
	The following table presents changes in the accretable yield for PCI loans during the three months ended March 31, 2015 and 2014:
		Three Months Ended
		March 31,
		2015				2014
		(in thousands)
	Balance, beginning of period	$	336,208			$	223,799
	Accretion	(26,350		)		(13,934		)
	Balance, end of period	$	309,858			$	209,865
	FDIC Loss-Share Receivable
	The receivable arising from the loss-sharing agreements (referred to as the “FDIC loss-share receivable” on our consolidated statements of financial condition) is measured separately from the covered loan portfolio because the agreements are not contractually part of the covered loans and are not transferable should the Bank choose to dispose of the covered loans.
	Changes in the FDIC loss-share receivable for the three months ended March 31, 2015 and 2014 were as follows:
		Three Months Ended
		March 31,
		2015				2014
		(in thousands)
	Balance, beginning of the period	$	13,848			$	32,757
	Discount accretion of the present value at the acquisition dates	43				11
	Effect of additional cash flows on covered loans (prospective recognition)	(4,072		)		(1,856		)
	Other reimbursable expenses	98				513
	Reimbursements from the FDIC	(1,954		)		(1,424		)
	Other	(355		)		1,256
	Balance, end of the period	$	7,608			$	31,257
	The aggregate effect of changes in the FDIC loss-share receivable was a reduction in non-interest income of $3.9 million and $76 thousand for the three months ended March 31, 2015 and 2014, respectively. The larger reduction (in both the receivable and non-interest income) during the first quarter of 2015 was mainly caused by the increase in our prospective recognition of the effect of additional cash flows from certain pooled loans. Valley does not expect a reduction in non-interest income related to additional cash flows on pooled loans during the second quarter of 2015, as the receivable was prospectively reduced for such additional cash flows over the shorter term of the commercial loan loss-sharing agreements (related to Valley's 2010 FDIC-assisted transactions) that expired in March 2015.
	Loan Portfolio Risk Elements and Credit Risk Management
	Credit risk management. For all of its loan types discussed below, Valley adheres to a credit policy designed to minimize credit risk while generating the maximum income given the level of risk. Management reviews and approves these policies and procedures on a regular basis with subsequent approval by the Board of Directors annually. Credit authority relating to a significant dollar percentage of the overall portfolio is centralized and controlled by the Credit Risk Management Division and by the Credit Committee. A reporting system supplements the management review process by providing management with frequent reports concerning loan production, loan quality, concentrations of credit, loan delinquencies, non-performing, and potential problem loans. Loan portfolio diversification is an important factor utilized by Valley to manage its risk across business sectors and through cyclical economic circumstances.
	Commercial and industrial loans. A significant proportion of Valley’s commercial and industrial loan portfolio is granted to long-standing customers of proven ability and strong repayment performance. Underwriting standards are designed to assess the borrower’s ability to generate recurring cash flow sufficient to meet the debt service requirements of loans granted. While such recurring cash flow serves as the primary source of repayment, a significant number of the loans are collateralized by borrower assets intended to serve as a secondary source of repayment should the need arise. Anticipated cash flows of borrowers, however, may not be as expected and the collateral securing these loans may fluctuate in value, or in the case of loans secured by accounts receivable, the ability of the borrower to collect all amounts due from its customers. Short-term loans may be made on an unsecured basis based on a borrower’s financial strength and past performance. Valley, in most cases, will obtain the personal guarantee of the borrower’s principals to mitigate the risk. Unsecured loans, when made, are generally granted to the Bank’s most credit worthy borrowers. Unsecured commercial and industrial loans totaled $358.9 million and $345.1 million at March 31, 2015 and December 31, 2014, respectively.
	Commercial real estate loans. Commercial real estate loans are subject to underwriting standards and processes similar to commercial and industrial loans. Commercial real estate loans are viewed primarily as cash flow loans and secondarily as loans secured by real property. Loans generally involve larger principal balances and longer repayment periods as compared to commercial and industrial loans. Repayment of most loans is dependent upon the cash flow generated from the property securing the loan or the business that occupies the property. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy and accordingly conservative loan to value ratios are required at origination, as well as stress tested to evaluate the impact of market changes relating to key underwriting elements. The properties securing the commercial real estate portfolio represent diverse types, with most properties located within Valley’s primary markets.
	Construction loans. With respect to loans to developers and builders, Valley originates and manages construction loans structured on either a revolving or non-revolving basis, depending on the nature of the underlying development project. These loans are generally secured by the real estate to be developed and may also be secured by additional real estate to mitigate the risk. Non-revolving construction loans often involve the disbursement of substantially all committed funds with repayment substantially dependent on the successful completion and sale, or lease, of the project. Sources of repayment for these types of loans may be from pre-committed permanent loans from other lenders, sales of developed property, or an interim loan commitment from Valley until permanent financing is obtained elsewhere. Revolving construction loans (generally relating to single-family residential construction) are controlled with loan advances dependent upon the pre-sale of housing units financed. These loans are closely monitored by on-site inspections and are considered to have higher risks than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, governmental regulation of real property, general economic conditions and the availability of long-term financing.
	Residential mortgages. Valley originates residential, first mortgage loans based on underwriting standards that generally comply with Fannie Mae and/or Freddie Mac requirements. Appraisals and valuations of real estate collateral are contracted directly with independent appraisers or from valuation services and not through appraisal management companies. The Bank’s appraisal management policy and procedure is in accordance with regulatory requirements and guidance issued by the Bank’s primary regulator. Credit scoring, using FICO® and other proprietary credit scoring models, is employed in the ultimate, judgmental credit decision by Valley’s underwriting staff. Valley does not use third party contract underwriting services. Residential mortgage loans include fixed and variable interest rate loans secured by one to four family homes generally located in northern and central New Jersey, the New York City metropolitan area, and eastern Pennsylvania, and to a much lesser extent central and southeast Florida. Valley’s ability to be repaid on such loans is closely linked to the economic and real estate market conditions in this region. In deciding whether to originate each residential mortgage, Valley considers the qualifications of the borrower as well as the value of the underlying property.
	Home equity loans. Home equity lending consists of both fixed and variable interest rate products. Valley mainly provides home equity loans to its residential mortgage customers within the footprint of its primary lending territory. Valley generally will not exceed a combined (i.e., first and second mortgage) loan-to-value ratio of 75 percent when originating a home equity loan.
	Automobile loans. Valley uses both judgmental and scoring systems in the credit decision process for automobile loans. Automobile originations (including light truck and sport utility vehicles) are largely produced via indirect channels, originated through approved automobile dealers. Automotive collateral is generally a depreciating asset and there are times in the life of an automobile loan where the amount owed on a vehicle may exceed its collateral value. Additionally, automobile charge-offs will vary based on strength or weakness in the used vehicle market, original advance rate, when in the life cycle of a loan a default occurs and the condition of the collateral being liquidated. Where permitted by law, and subject to the limitations of the bankruptcy code, deficiency judgments are sought and acted upon to ultimately collect all money owed, even when a default resulted in a loss at collateral liquidation. Valley uses a third party to actively track collision and comprehensive risk insurance required of the borrower on the automobile and this third party provides coverage to Valley in the event of an uninsured collateral loss.
	Other consumer loans. Valley’s other consumer loan portfolio includes direct consumer term loans, both secured and unsecured. The other consumer loan portfolio includes exposures in credit card loans, personal lines of credit, personal loans and loans secured by cash surrender value of life insurance. Valley believes the aggregate risk exposure of these loans and lines of credit was not significant at March 31, 2015. Unsecured consumer loans totaled approximately $30.3 million and $31.4 million, including $7.0 million and $7.6 million of credit card loans, at March 31, 2015 and December 31, 2014, respectively.
	Credit Quality
The following table presents past due, non-accrual and current loans (excluding PCI loans, which are accounted for on a pool basis, and non-performing loans held for sale) by loan portfolio class at March 31, 2015 and December 31, 2014:
	Past Due and Non-Accrual Loans
	30-59				60-89				Accruing Loans			Non-Accrual				Total				Current		Total
	Days				Days				90 Days or More			Loans				Past Due				Non-PCI		Non-PCI
	Past Due				Past Due				Past Due							Loans				Loans		Loans
	Loans				Loans
	(in thousands)
31-Mar-15
Commercial and industrial	$	4,472			$	90			$	208		$	8,285			$	13,055			$	2,081,219	$	2,094,274
Commercial real estate:
Commercial real estate	4,775				1,883				2,792			24,850				34,300				5,108,288		5,142,588
Construction	6,577				—				—			5,144				11,721				471,962		483,683
Total commercial real estate loans	11,352				1,883				2,792			29,994				46,021				5,580,250		5,626,271
Residential mortgage	12,498				1,782				564			17,127				31,971				2,463,856		2,495,827
Consumer loans:
Home equity	1,170				380				—			2,042				3,592				391,294		394,886
Automobile	1,594				415				251			—				2,260				1,160,659		1,162,919
Other consumer	111				42				11			96				260				310,842		311,102
Total consumer loans	2,875				837				262			2,138				6,112				1,862,795		1,868,907
Total	$	31,197			$	4,592			$	3,826		$	57,544			$	97,159			$	11,988,120	$	12,085,279
31-Dec-14
Commercial and industrial	$	1,630			$	1,102			$	226		$	8,467			$	11,425			$	1,948,502	$	1,959,927
Commercial real estate:
Commercial real estate	8,938				113				49			22,098				31,198				5,022,544		5,053,742
Construction	448				—				3,988			5,223				9,659				466,435		476,094
Total commercial real estate loans	9,386				113				4,037			27,321				40,857				5,488,979		5,529,836
Residential mortgage	6,200				3,575				1,063			17,760				28,598				2,390,446		2,419,044
Consumer loans:
Home equity	761				282				—			2,022				3,065				397,071		400,136
Automobile	1,902				391				126			90				2,509				1,142,271		1,144,780
Other consumer	319				91				26			97				533				297,856		298,389
Total consumer loans	2,982				764				152			2,209				6,107				1,837,198		1,843,305
Total	$	20,198			$	5,554			$	5,478		$	55,757			$	86,987			$	11,665,125	$	11,752,112
Impaired loans. Impaired loans, consisting of non-accrual commercial and industrial loans and commercial real estate loans over $250 thousand and all loans which were modified in troubled debt restructuring, are individually evaluated for impairment. PCI loans are not classified as impaired loans because they are accounted for on a pool basis.
The following table presents the information about impaired loans by loan portfolio class at March 31, 2015 and December 31, 2014:
	Recorded				Recorded				Total			Unpaid				Related
	Investment				Investment				Recorded			Contractual				Allowance
	With No Related				With Related				Investment			Principal
	Allowance				Allowance							Balance
	(in thousands)
31-Mar-15
Commercial and industrial	$	6,214			$	21,665			$	27,879		$	33,471			$	4,824
Commercial real estate:
Commercial real estate	32,856				47,703				80,559			83,068				4,918
Construction	13,197				2,962				16,159			20,825				1,008
Total commercial real estate loans	46,053				50,665				96,718			103,893				5,926
Residential mortgage	6,840				15,254				22,094			23,898				1,432
Consumer loans:
Home equity	324				4,197				4,521			4,622				764
Total consumer loans	324				4,197				4,521			4,622				764
Total	$	59,431			$	91,781			$	151,212		$	165,884			$	12,946
31-Dec-14
Commercial and industrial	$	6,579			$	21,645			$	28,224		$	33,677			$	4,929
Commercial real estate:
Commercial real estate	29,784				44,713				74,497			77,007				5,342
Construction	14,502				2,299				16,801			20,694				160
Total commercial real estate loans	44,286				47,012				91,298			97,701				5,502
Residential mortgage	6,509				15,831				22,340			24,311				1,629
Consumer loans:
Home equity	235				2,911				3,146			3,247				465
Total consumer loans	235				2,911				3,146			3,247				465
Total	$	57,609			$	87,399			$	145,008		$	158,936			$	12,525
The following table presents by loan portfolio class, the average recorded investment and interest income recognized on impaired loans for the three months ended March 31, 2015 and 2014:
	Three Months Ended March 31,
	2015								2014
	Average				Interest				Average			Interest
	Recorded				Income				Recorded			Income
	Investment				Recognized				Investment			Recognized
	(in thousands)
Commercial and industrial	$	28,282			$	246			$	46,784		$	369
Commercial real estate:
Commercial real estate	78,523				486				97,542			645
Construction	16,670				150				19,638			144
Total commercial real estate loans	95,193				636				117,180			789
Residential mortgage	21,843				250				27,509			260
Consumer loans:
Home equity	3,485				30				1,076			13
Total consumer loans	3,485				30				1,076			13
Total	$	148,803			$	1,162			$	192,549		$	1,431
Interest income recognized on a cash basis (included in the table above) was immaterial for the three months ended March 31, 2015 and 2014.
Troubled debt restructured loans. From time to time, Valley may extend, restructure, or otherwise modify the terms of existing loans, on a case-by-case basis, to remain competitive and retain certain customers, as well as assist other customers who may be experiencing financial difficulties. If the borrower is experiencing financial difficulties and a concession has been made at the time of such modification, the loan is classified as a troubled debt restructured loan (TDR). Valley’s PCI loans are excluded from the TDR disclosures below because they are evaluated for impairment on a pool by pool basis. When an individual PCI loan within a pool is modified as a TDR, it is not removed from its pool. All TDRs are classified as impaired loans and are included in the impaired loan disclosures above.
The majority of the concessions made for TDRs involve lowering the monthly payments on 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. The concessions rarely result in the forgiveness of principal or accrued interest. In addition, Valley frequently obtains additional collateral or guarantor support when modifying such loans. If the borrower has demonstrated performance under the previous terms and Valley’s 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.
Performing TDRs (not reported as non-accrual loans) totaled $100.5 million and $97.7 million as of March 31, 2015 and December 31, 2014, respectively. Non-performing TDRs totaled $18.8 million and $19.4 million as of March 31, 2015 and December 31, 2014, respectively.
The following table presents loans by loan portfolio class modified as TDRs during the three months ended March 31, 2015 and 2014. The pre-modification and post-modification outstanding recorded investments disclosed in the table below represent the loan carrying amounts immediately prior to the modification and the carrying amounts at March 31, 2015 and 2014, respectively.
	Three Months Ended March 31, 2015										Three Months Ended March 31, 2014
Troubled Debt Restructurings	Number			Pre-Modification				Post-Modification			Number			Pre-Modification				Post-Modification
	of			Outstanding				Outstanding			of			Outstanding				Outstanding
	Contracts			Recorded				Recorded			Contracts			Recorded				Recorded
				Investment				Investment						Investment				Investment
	($ in thousands)
Commercial and industrial	6			$	1,584			$	1,534		11			$	9,762			$	9,093
Commercial real estate:
Commercial real estate	1			5,000				5,000			5			15,946				15,060
Construction	—			—				—			1			4,827				4,827
Total commercial real estate	1			5,000				5,000			6			20,773				19,887
Residential mortgage	1			280				278			—			—				—
Total	8			$	6,864			$	6,812		17			$	30,535			$	28,980
The majority of the TDR concessions made during the three months ended March 31, 2015 and 2014 involved an extension of the loan term. The total TDRs presented in the above table had allocated specific reserves for loan losses totaling $759 thousand and $2.1 million at March 31, 2015 and 2014, respectively. These specific reserves are included in the allowance for loan losses for loans individually evaluated for impairment disclosed in Note 9. Partial loan charge-offs related to loans modified as TDRs in the table above totaled $861 thousand during the three months ended March 31, 2014. There were no charge-offs related to TDR modifications during the three months ended March 31, 2015.
There were no non-PCI loans modified as TDRs within the previous 12 months for which there was a payment default (90 days or more past due) during the three months ended March 31, 2015.
Credit quality indicators. Valley utilizes an internal loan classification system as a means of reporting problem loans within commercial and industrial, commercial real estate, and construction loan portfolio classes. Under Valley’s internal risk rating system, loan relationships could be classified as “Pass,” “Special Mention,” “Substandard,” “Doubtful,” and “Loss.” Substandard loans include loans that exhibit well-defined weakness and are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. Loans classified as Doubtful have all the weaknesses inherent in those classified as Substandard with the added characteristic that the weaknesses present make collection or liquidation in full, based on currently existing facts, conditions and values, highly questionable and improbable. Loans classified as Loss are those considered uncollectible with insignificant value and are charged-off immediately to the allowance for loan losses. Loans that do not currently pose a sufficient risk to warrant classification in one of the aforementioned categories, but pose weaknesses that deserve management’s close attention are deemed Special Mention. Loans rated as Pass do not currently pose any identified risk and can range from the highest to average quality, depending on the degree of potential risk. Risk ratings are updated any time the situation warrants.
The following table presents the risk category of loans (excluding PCI loans) by class of loans based on the most recent analysis performed at March 31, 2015 and December 31, 2014.
Credit exposure - by internally assigned risk rating	Pass				Special				Substandard			Doubtful				Total Non-PCI Loans
					Mention
	(in thousands)
31-Mar-15
Commercial and industrial	$	1,970,835			$	67,846			$	52,448		$	3,145			$	2,094,274
Commercial real estate	4,986,138				42,198				114,252			—				5,142,588
Construction	464,080				1,633				15,499			2,471				483,683
Total	$	7,421,053			$	111,677			$	182,199		$	5,616			$	7,720,545
31-Dec-14
Commercial and industrial	$	1,865,472			$	50,453			$	44,002		$	—			$	1,959,927
Commercial real estate	4,903,185				40,232				110,325			—				5,053,742
Construction	455,145				1,923				16,482			2,544				476,094
Total	$	7,223,802			$	92,608			$	170,809		$	2,544			$	7,489,763
For residential mortgages, automobile, home equity and other consumer loan portfolio classes (excluding PCI loans), Valley also evaluates credit quality based on the aging status of the loan, which was previously presented, and by payment activity. The following table presents the recorded investment in those loan classes based on payment activity as of March 31, 2015 and December 31, 2014:
Credit exposure - by payment activity	Performing				Non-Performing				Total Non-PCI
	Loans				Loans				Loans
	(in thousands)
31-Mar-15
Residential mortgage	$	2,478,700			$	17,127			$	2,495,827
Home equity	392,844				2,042				394,886
Automobile	1,162,919				—				1,162,919
Other consumer	311,006				96				311,102
Total	$	4,345,469			$	19,265			$	4,364,734
31-Dec-14
Residential mortgage	$	2,401,284			$	17,760			$	2,419,044
Home equity	398,114				2,022				400,136
Automobile	1,144,690				90				1,144,780
Other consumer	298,292				97				298,389
Total	$	4,242,380			$	19,969			$	4,262,349
Valley evaluates the credit quality of its PCI loan pools based on the expectation of the underlying cash flows of each pool, derived from the aging status and by payment activity of individual loans within the pool. The following table presents the recorded investment in PCI loans by class based on individual loan payment activity as of March 31, 2015 and December 31, 2014.
Credit exposure - by payment activity	Performing				Non-Performing				Total
	Loans				Loans				PCI Loans
	(in thousands)
31-Mar-15
Commercial and industrial	$	253,446			$	20,207			$	273,653
Commercial real estate	1,054,600				8,685				1,063,285
Construction	57,204				1,127				58,331
Residential mortgage	148,972				3,212				152,184
Consumer	90,040				11,689				101,729
Total	$	1,604,262			$	44,920			$	1,649,182
31-Dec-14
Commercial and industrial	$	272,027			$	19,157			$	291,184
Commercial real estate	1,091,784				15,355				1,107,139
Construction	52,802				4,238				57,040
Residential mortgage	153,789				3,539				157,328
Consumer	103,686				5,424				109,110
Total	$	1,674,088			$	47,713			$	1,721,801
Other real estate owned totaled $21.8 million at March 31, 2015 and included foreclosed residential real estate properties totaling $6.7 million. Residential mortgage and consumer loans secured by residential real estate properties for which formal foreclosure proceedings are in process totaled $14.4 million at March 31, 2015.

Allowance_for_Credit_Losses

Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses
	The allowance for credit losses consists of the allowance for losses on non-covered loans and allowance for losses on covered loans related to credit impairment of certain covered loan pools subsequent to acquisition, as well as the allowance for unfunded letters of credit. Management maintains the allowance for credit losses at a level estimated to absorb probable loan losses of the loan portfolio and unfunded letter of credit commitments at the balance sheet date. The allowance for losses on non-covered loans is based on ongoing evaluations of the probable estimated losses inherent in the non-covered loan portfolio, including unexpected credit impairment or reduction in the provision of non-covered PCI loan pools subsequent to the acquisition date.
	The following table summarizes the allowance for credit losses at March 31, 2015 and December 31, 2014:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Components of allowance for credit losses:
	Allowance for non-covered loans	$	102,431		$	102,153
	Allowance for covered loans	200			200
	Total allowance for loan losses	102,631			102,353
	Allowance for unfunded letters of credit	1,934			1,934
	Total allowance for credit losses	$	104,565		$	104,287
	The following table summarizes the provision for credit losses for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Components of provision for credit losses:
	Provision for non-covered loans	$	—		$	4,949
	Provision for covered loans	—			—
	Total provision for loan losses	—			4,949
	Provision for unfunded letters of credit	—			(951		)
	Total provision for credit losses	$	—		$	3,998
	The following table details activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2015 and 2014:
		Commercial			Commercial			Residential			Consumer			Unallocated			Total
		and Industrial			Real Estate			Mortgage
		(in thousands)
	Three Months Ended
	March 31, 2015:
	Allowance for loan losses:
	Beginning balance	$	43,676		$	42,840		$	5,093		$	5,179		$	5,565		$	102,353
	Loans charged-off (1)	(753		)	(150		)	(49		)	(714		)	—			(1,666		)
	Charged-off loans recovered	1,051			460			114			319			—			1,944
	Net recoveries (charge-offs)	298			310			65			(395		)	—			278
	Provision for loan losses	919			(1,494		)	(1,066		)	188			1,453			—
	Ending balance	$	44,893		$	41,656		$	4,092		$	4,972		$	7,018		$	102,631
	Three Months Ended
	March 31, 2014:
	Allowance for loan losses:
	Beginning balance	$	51,551		$	42,343		$	7,786		$	4,359		$	7,578		$	113,617
	Loans charged-off (1)	(8,614		)	(4,490		)	(63		)	(1,072		)	—			(14,239		)
	Charged-off loans recovered	544			1,337			79			422			—			2,382
	Net charge-offs	(8,070		)	(3,153		)	16			(650		)	—			(11,857		)
	Provision for loan losses	6,451			(808		)	(823		)	398			(269		)	4,949
	Ending balance	$	49,932		$	38,382		$	6,979		$	4,107		$	7,309		$	106,709
	The following table represents the allocation of the allowance for loan losses and the related loans by loan portfolio segment disaggregated based on the impairment methodology at March 31, 2015 and December 31, 2014.
		Commercial			Commercial			Residential			Consumer			Unallocated			Total
		and Industrial			Real Estate			Mortgage
		(in thousands)
	31-Mar-15
	Allowance for loan losses:
	Individually evaluated for impairment	$	4,824		$	5,926		$	1,432		$	764		$	—		$	12,946
	Collectively evaluated for impairment	39,899			35,730			2,630			4,208			7,018			89,485
	Loans acquired with discounts related to credit quality	170			—			30			—			—			200
	Total	$	44,893		$	41,656		$	4,092		$	4,972		$	7,018		$	102,631
	Loans:
	Individually evaluated for impairment	$	27,879		$	96,718		$	22,094		$	4,521		$	—		$	151,212
	Collectively evaluated for impairment	2,066,395			5,529,553			2,473,733			1,864,386			—			11,934,067
	Loans acquired with discounts related to credit quality	273,653			1,121,616			152,184			101,729			—			1,649,182
	Total	$	2,367,927		$	6,747,887		$	2,648,011		$	1,970,636		$	—		$	13,734,461
	31-Dec-14
	Allowance for loan losses:
	Individually evaluated for impairment	$	4,929		$	5,502		$	1,629		$	465		$	—		$	12,525
	Collectively evaluated for impairment	38,577			37,338			3,434			4,714			5,565			89,628
Loans acquired with discounts related to credit quality	170			—			30			—			—			200
Total	$	43,676		$	42,840		$	5,093		$	5,179		$	5,565		$	102,353
Loans:
Individually evaluated for impairment	$	28,224		$	91,298		$	22,340		$	3,146		$	—		$	145,008
Collectively evaluated for impairment	1,931,703			5,438,538			2,396,704			1,840,159			—			11,607,104
Loans acquired with discounts related to credit quality	291,184			1,164,179			157,328			109,110			—			1,721,801
Total	$	2,251,111		$	6,694,015		$	2,576,372		$	1,952,415		$	—		$	13,473,913

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
	The changes in the carrying amount of goodwill as allocated to Valley's business segments, or reporting units thereof, for goodwill impairment analysis were:
		Business Segment / Reporting Unit*
		Wealth		Consumer			Commercial			Investment		Total
		Management		Lending			Lending			Management
		(in thousands)
	Balance at December 31, 2014	$	20,517	$	168,922		$	252,900		$	133,553	$	575,892
	Goodwill from business combinations	—		450			869			323		1,642
	Balance at March 31, 2015	$	20,517	$	169,372		$	253,769		$	133,876	$	577,534
	*	Valley’s Wealth Management Division is comprised of trust, asset management, and insurance services. This reporting unit is included in the Consumer Lending segment for financial reporting purposes.
	Goodwill from business combinations, in the table above, represents the effect of the combined adjustments to the estimated fair values of the acquired assets (including core deposits presented in the table below) and liabilities as of the acquisition date related to the acquisition of the 1st United (see Note 2 for further details). There was no impairment of goodwill during the three months ended March 31, 2015 and 2014.
	The following table summarizes other intangible assets as of March 31, 2015 and December 31, 2014:
		Gross		Accumulated			Valuation			Net
		Intangible		Amortization			Allowance			Intangible
		Assets								Assets
		(in thousands)
	31-Mar-15
	Loan servicing rights	$	73,096	$	(53,597	)	$	(676	)	$	18,823
	Core deposits	43,384		(29,219		)	—			14,165
	Other	4,374		(2,338		)	—			2,036
	Total other intangible assets	$	120,854	$	(85,154	)	$	(676	)	$	35,024
	31-Dec-14
	Loan servicing rights	$	72,154	$	(51,708	)	$	(592	)	$	19,854
	Core deposits	46,694		(29,916		)	—			16,778
	Other	4,591		(2,448		)	—			2,143
	Total other intangible assets	$	123,439	$	(84,072	)	$	(592	)	$	38,775
	Loan servicing rights are accounted for using the amortization method. Under this method, Valley amortizes the loan servicing assets in proportion to, and over the period of estimated net servicing revenues. On a quarterly basis, Valley stratifies its loan servicing assets into groupings based on risk characteristics and assesses each group for impairment based on fair value. Impairment charges on loan servicing rights are recognized in earnings when the book value of a stratified group of loan servicing rights exceeds its estimated fair value. Valley recorded net impairment charges on its loan servicing rights totaling $84 thousand for the three months ended March 31, 2015
	as compared to net recoveries of impairment charges totaling $100 thousand for the three months ended March 31, 2014.
	Core deposits are amortized using an accelerated method and have a weighted average amortization period of 11 years. The line item labeled “Other” included in the table above primarily consists of customer lists and covenants not to compete, which are amortized over their expected lives generally using a straight-line method and have a weighted average amortization period of approximately 18 years. Valley evaluates core deposits and other intangibles for impairment when an indication of impairment exists. No impairment was recognized during the three months ended March 31, 2015 and 2014.
	The following presents the estimated future amortization expense of other intangible assets for the remainder of 2015 through 2019:
		Loan		Core			Other
		Servicing		Deposits
		Rights
		(in thousands)
	2015	$	4,070	$	2,446		$	325
	2016	4,220		2,648			233
	2017	3,298		2,120			220
	2018	2,511		1,767			193
	2019	1,838		1,497			181
	Valley recognized amortization expense on other intangible assets, including net impairment charges and net recoveries of impairment charges on loan servicing rights, totaling approximately $2.4 million and $2.4 million for the three months ended March 31, 2015 and 2014, respectively.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock–Based Compensation
	Valley has one active employee equity plan, the 2009 Long-Term Stock Incentive Plan (as amended from time to time, the “Employee Stock Incentive Plan”), administered by the Compensation and Human Resources Committee (the “Committee”) appointed by Valley’s Board of Directors. The Committee can grant incentive awards to officers and key employees of Valley, whose substantial contributions are essential to the continued growth and success of Valley. As of March 31, 2015, 2.6 million shares of common stock were available for issuance under the Employee Stock Incentive Plan.
	Under the Employee Stock Incentive Plan, Valley may award shares to its employees in the form of stock appreciation rights, incentive stock options, non-qualified stock options, restricted stock and restricted stock units (RSUs). The essential features of each award are described in the award agreement relating to that award. The grant, exercise, vesting, settlement or payment of an award may be based upon the fair value of Valley’s common stock on the last sale price reported for Valley’s common stock on such date or the last sale price reported preceding such date, except for performance-based restricted stock and RSUs with a market condition. The grant date fair values of performance-based awards that vest based on a market condition are determined by a third party specialist using a Monte Carlo valuation model.
	Valley awarded time-based restricted stock totaling 459 thousand shares and 423 thousand shares during the three months ended March 31, 2015 and 2014, respectively, to both executive officers and key employees of Valley. Valley also awarded 313 thousand shares of performance-based RSUs and 240 thousand of performance-based restricted stock during the three months ended March 31, 2015 and 2014, respectively, to certain executive officers. The RSUs earn dividend equivalents (equal to cash dividends paid on Valley's common share) over the applicable performance period. Dividend equivalents and accrued interest, per the terms of the agreements, are accumulated and paid to the grantee at the vesting date, or forfeited if the performance conditions are not met.
	The performance-based awards vest based on (i) growth in tangible book value per share plus dividends (75 percent of performance shares) and (ii) total shareholder return as compared to our peer group (25 percent of performance shares). The majority of the performance-based awards "cliff" vest after three years based on the cumulative performance of Valley during that time period. The non-performance based awards have vesting periods ranging from three to six years. Generally, the restrictions on such awards lapse at an annual or bi-annual rate of one-third of the total award commencing with the first or second anniversary of the date of grant, respectively. The average grant date fair value of non-performance and performance-based restricted stock awarded during the three months ended March 31, 2015 was $9.15 and $8.98 per share, respectively.
	Valley recorded stock-based compensation expense of $2.5 million and $2.2 million for the three months ended March 31, 2015 and 2014, respectively. The fair values of stock awards are expensed over the shorter of the vesting or required service period. As of March 31, 2015, the unrecognized amortization expense for all stock-based employee compensation totaled approximately $19.6 million and will be recognized over an average remaining vesting period of approximately 4 years.

Guarantees

Guarantees	3 Months Ended
	Mar. 31, 2015
Guarantees [Abstract]
Guarantees	Guarantees
	Guarantees that have been entered into by Valley include standby letters of credit of $190.4 million as of March 31, 2015. Standby letters of credit represent the guarantee by Valley of the obligations or performance of a customer in the event the customer is unable to meet or perform its obligations to a third party. Of the total standby letters of credit, $130.6 million, or 68.6 percent, are secured and, in the event of non-performance by the customer, Valley has rights to the underlying collateral, which includes commercial real estate, business assets (physical plant or property, inventory or receivables), marketable securities and cash in the form of bank savings accounts and certificates of deposit. As of March 31, 2015, Valley had a $623 thousand liability related to the standby letters of credit.

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities
	Valley enters into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future known and uncertain cash amounts, the value of which are determined by interest rates.
	Cash Flow Hedges of Interest Rate Risk. Valley’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, Valley uses interest rate swaps and caps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the payment of either fixed or variable-rate amounts in exchange for the receipt of variable or fixed-rate amounts from a counterparty. Interest rate caps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty if interest rates rise above the strike rate on the contract in exchange for an up-front premium.
	Fair Value Hedges of Fixed Rate Assets and Liabilities. Valley is exposed to changes in the fair value of certain of its fixed rate assets or liabilities due to changes in benchmark interest rates based on one-month LIBOR. From time to time, Valley uses interest rate swaps to manage its exposure to changes in fair value. Interest rate swaps designated as fair value hedges involve the receipt of variable rate payments from a counterparty in exchange for Valley making fixed rate payments over the life of the agreements without the exchange of the underlying notional amount. For derivatives that are designated and qualify as fair value hedges, the gain or loss on the derivative as well as the loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. Valley includes the gain or loss on the hedged items in the same income statement line item as the loss or gain on the related derivatives.
	Non-designated Hedges. Derivatives not designated as hedges may be used to manage Valley’s exposure to interest rate movements or to provide service to customers but do not meet the requirements for hedge accounting under U.S. GAAP. Derivatives not designated as hedges are not entered into for speculative purposes.
	Under a program, Valley executes interest rate swaps with commercial lending customers to facilitate their respective risk management strategies. These interest rate swaps with customers are simultaneously offset by interest rate swaps that Valley executes with a third party, such that Valley 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.
	Valley regularly enters into mortgage banking derivatives which are non-designated hedges. These derivatives include interest rate lock commitments provided to customers to fund certain residential mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. Valley enters into forward commitments for the future delivery of residential mortgage loans when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on Valley’s commitments to fund the loans as well as on its portfolio of mortgage loans held for sale.
	During the second quarter of 2014, Valley issued $25 million of market linked certificates of deposit through a broker dealer. The rate paid on these hybrid instruments is based on a formula derived from the spread between the long and short ends of the constant maturity swap (CMS) rate curve. This type of instrument is referred to as a "steepener" since it derives its value from the slope of the CMS curve. Valley has determined that these hybrid instruments contain an embedded swap contract which has been bifurcated from the host contract. Valley entered into a swap (with a total notional amount of $25 million) almost simultaneously with the deposit issuance where the receive rate on the swap mirrors the pay rate on the brokered deposits. The bifurcated derivative and the stand alone swap are both marked to market through other non-interest expense. Although these instruments do not meet the hedge accounting requirements, the change in fair value of both the bifurcated derivative and the stand alone swap tend to move in opposite directions with changes in 90 day LIBOR rate and therefore provide an effective economic hedge.
	Amounts included in the consolidated statements of financial condition related to the fair value of Valley’s derivative financial instruments were as follows:
		March 31, 2015								31-Dec-14
		Fair Value								Fair Value
		Other Assets			Other Liabilities			Notional Amount		Other Assets		Other Liabilities		Notional Amount
		(in thousands)
	Derivatives designated as hedging instruments:
	Cash flow hedge interest rate caps and swaps	$	1,897		$	26,704		$	1,007,000	$	2,229	$	19,302	$	1,007,000
	Fair value hedge interest rate swaps	8,999			1,536			133,358		6,257		1,482		133,406
	Total derivatives designated as hedging instruments	$	10,896		$	28,240		$	1,140,358	$	8,486	$	20,784	$	1,140,406
	Derivatives not designated as hedging instruments:
	Interest rate swaps and embedded derivatives	$	18,832		$	18,828		$	393,283	$	12,464	$	12,455	$	378,849
	Mortgage banking derivatives	42			52			21,069		37		91		40,857
	Total derivatives not designated as hedging instruments	$	18,874		$	18,880		$	414,352	$	12,501	$	12,546	$	419,706
	Losses included in the consolidated statements of income and in other comprehensive income, on a pre-tax basis, related to interest rate derivatives designated as hedges of cash flows were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Amount of loss reclassified from accumulated other comprehensive loss to interest expense	$	(1,629	)	$	(1,648	)
	Amount of loss recognized in other comprehensive income	(8,911		)	(6,298		)
	The net gains or losses related to cash flow hedge ineffectiveness were immaterial during the three months ended March 31, 2015 and 2014. The accumulated net after-tax losses related to effective cash flow hedges included in accumulated other comprehensive loss were $18.8 million and $14.5 million at March 31, 2015 and December 31, 2014, respectively.
	Amounts reported in accumulated other comprehensive loss related to cash flow interest rate derivatives are reclassified to interest expense as interest payments are made on the hedged variable interest rate liabilities. Valley estimates that $8.4 million will be reclassified as an increase to interest expense over the next twelve months.
	Gains (losses) included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Derivative - interest rate swaps:
	Interest income	$	(54	)	$	(23	)
	Interest expense	2,741			(3,175		)
	Hedged item - loans, deposits and long-term borrowings:
	Interest income	$	54		$	23
	Interest expense	(2,781		)	3,144
	During the three months ended March 31, 2015 and 2014, the amounts recognized in non-interest expense related to ineffectiveness of fair value hedges were immaterial. Valley recognized a net reduction to interest expense of $100 thousand for the three months ended March 31, 2014 related to Valley’s fair value hedges on brokered time deposits, which include net settlements on the derivatives. The fair value hedges on brokered time deposits expired in March 2014.
	The net gains (losses) included in the consolidated statements of income related to derivative instruments not designated as hedging instruments were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Non-designated hedge interest rate derivatives
	Other non-interest expense	$	38		$	(173	)
	Credit Risk Related Contingent Features. By using derivatives, Valley is exposed to credit risk if counterparties to the derivative contracts do not perform as expected. Management attempts to minimize counterparty credit risk through credit approvals, limits, monitoring procedures and obtaining collateral where appropriate. Credit risk exposure associated with derivative contracts is managed at Valley in conjunction with Valley’s consolidated counterparty risk management process. Valley’s counterparties and the risk limits monitored by management are periodically reviewed and approved by the Board of Directors.
	Valley has agreements with its derivative counterparties providing that if Valley defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then Valley could also be declared in default on its derivative counterparty agreements. Additionally, Valley has an agreement with several of its derivative counterparties that contains provisions that require Valley’s debt to maintain an investment grade credit rating from each of the major credit rating agencies, from which it receives a credit rating. If Valley’s credit rating is reduced below investment grade or such rating is withdrawn or suspended, then the counterparty could terminate the derivative positions, and Valley would be required to settle its obligations under the agreements. As of March 31, 2015, Valley was in compliance with all of the provisions of its derivative counterparty agreements. As of March 31, 2015, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk related to these agreements was $13.3 million. Valley has derivative counterparty agreements that require minimum collateral posting thresholds for certain counterparties. At March 31, 2015, Valley had $40.7 million in collateral posted with its counterparties.

Balance_Sheet_Offsetting

Balance Sheet Offsetting	3 Months Ended
	Mar. 31, 2015
Offsetting [Abstract]
Balance Sheet Offsetting	Balance Sheet Offsetting
	Certain financial instruments, including derivatives (consisting of interest rate caps and swaps) and repurchase agreements (accounted for as secured long-term borrowings), may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. Valley is party to master netting arrangements with its financial institution counterparties; however, Valley does not offset assets and liabilities under these arrangements for financial statement presentation purposes. The master netting arrangements provide for a single net settlement of all swap agreements, as well as collateral, in the event of default on, or termination of, any one contract. Collateral, usually in the form of cash or marketable investment securities, is posted by the counterparty with net liability positions in accordance with contract thresholds. Master repurchase agreements which include “right of set-off” provisions generally have a legally enforceable right to offset recognized amounts. In such cases, the collateral would be used to settle the fair value of the repurchase agreement should Valley be in default. The table below presents information about Valley’s financial instruments that are eligible for offset in the consolidated statements of financial condition as of March 31, 2015 and December 31, 2014.
								Gross Amounts Not Offset
		Gross Amounts		Gross Amounts		Net Amounts		Financial			Cash				Net
		Recognized		Offset		Presented		Instruments			Collateral				Amount
		(in thousands)
	31-Mar-15
	Assets:
	Interest rate caps and swaps	$	29,728	$	—	$	29,728	$	(10,859	)	$	—			$	18,869
	Liabilities:
	Interest rate caps and swaps	$	47,068	$	—	$	47,068	$	(10,859	)	$	(36,209	)		$	—
	Repurchase agreements	395,000		—		395,000		—			(395,000		)	*	—
	Total	$	442,068	$	—	$	442,068	$	(10,859	)	$	(431,209	)		$	—
	31-Dec-14
	Assets:
	Interest rate caps and swaps	$	20,950	$	—	$	20,950	$	(8,504	)	$	—			$	12,446
	Liabilities:
	Interest rate caps and swaps	$	33,239	$	—	$	33,239	$	(8,504	)	$	(24,735	)		$	—
	Repurchase agreements	395,000		—		395,000		—			(395,000		)	*	—
	Total	$	428,239	$	—	$	428,239	$	(8,504	)	$	(419,735	)		$	—
	*	Represents fair value of non-cash pledged investment securities.

Tax_Credit_Investments

Tax Credit Investments	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Tax Credit Investments	Tax Credit Investments
	Valley’s tax credit investments are primarily related to investments promoting qualified affordable housing projects, and other investments related to community development and renewable energy sources. Some of these tax-advantaged investments support Valley’s regulatory compliance with the Community Reinvestment Act. Valley’s investments in these entities generate a return primarily through the realization of federal income tax credits, and other tax benefits, such as tax deductions from operating losses of the investments, over specified time periods. These tax credits and deductions are recognized as a reduction of income tax expense.
	Valley’s tax credit investments are carried in other assets on the consolidated statements of financial condition. Valley’s unfunded capital and other commitments related to the tax credit investments are carried in accrued expenses and other liabilities on the consolidated statements of financial condition. Valley recognizes amortization of tax credit investments, including impairment losses, within non-interest expense of the consolidated statements of income using the equity method of accounting. An impairment loss is recognized when the fair value of the tax credit investment is less than its carrying value.
	The following table presents the balances of Valley’s affordable housing tax credit investments, other tax credit investments, and related unfunded commitments at March 31, 2015 and December 31, 2014:
		March 31,		December 31,
		2015		2014
		(in thousands)
	Other Assets:
	Affordable housing tax credit investments, net	$	34,843	$	36,009
	Other tax credit investments, net	62,693		66,023
	Total tax credit investments, net	$	97,536	$	102,032
	Other Liabilities:
	Unfunded affordable housing tax credit commitments	$	8,080	$	8,800
	Unfunded other tax credit commitments	418		418
	Total unfunded tax credit commitments	$	8,498	$	9,218
	The following table presents other information relating to Valley’s affordable housing tax credit investments and other tax credit investments for the three months ended March 31, 2015 and 2014:
		Three Months Ended
		March 31,
		2015		2014
		(in thousands)
	Components of Income Tax Expense:
	Affordable housing tax credits and other tax benefits	$	1,731	$	1,393
	Other tax credit investment credits and tax benefits	3,618		3,188
	Total reduction in income tax expense	$	5,349	$	4,581
	Amortization of Tax Credit Investments:
	Affordable housing tax credit investment losses	$	677	$	440
	Affordable housing tax credit investment impairment losses	488		—
	Other tax credit investment losses	297		398
	Other tax credit investment impairment losses	3,034		2,878
	Total amortization of tax credit investments recorded in non-interest expense	$	4,496	$	3,716

Business_Segments

Business Segments	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Business Segments	Business Segments
	The information under the caption “Business Segments” in Management’s Discussion and Analysis of the Financial Condition and Results of Operations is incorporated herein by reference.

New_Authoritative_Accounting_G1

New Authoritative Accounting Guidance (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
New Authoritative Accounting Guidance	New Authoritative Accounting Guidance
	Accounting Standards Update (ASU) No. 2015-03, "Interest—Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs" requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in the ASU No. 2015-03. ASU No. 2015-03 will be effective for reporting periods (including interim periods) beginning after December 15, 2015. ASU No. 2015-03 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements.
	ASU No. 2014-14, "Classification of Certain Government-Guaranteed Mortgage Loans Upon Foreclosure" requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: (1) the loan has a government guarantee that is not separable from the loan before foreclosure, (2) 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 (3) 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. ASU No. 2014-14 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements.
	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" requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU No. 2014-12 became effective for Valley on January 1, 2015 and did not have a significant impact on its consolidated financial statements.
	ASU No. 2014-11, "Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures" requires entities to account for repurchase-to-maturity transactions as secured borrowings rather than as sales with forward repurchase agreements and expands disclosure requirements related to certain transfers of financial assets that are accounted for as sales and certain transfers (specifically, repos, securities lending transactions, and repurchase-to-maturity transactions) accounted for as secured borrowings. The accounting-related changes became effective for the first interim or annual period beginning after December 15, 2014. The disclosures for certain transactions accounted for as sales are required for interim and annual periods beginning after December 15, 2014. The disclosures for repos, securities lending transactions, and repos-to-maturity accounted for as secured borrowings are required for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. As of March 31, 2015, all of Valley's repurchase agreements were typical in nature (i.e., not repurchase-to-maturity transactions or repurchase agreements executed as a repurchase financing) and are accounted for as secured borrowings. As such, Valley's adoption of ASU No. 2014-11 did not have a significant impact on its consolidated financial statements.
	ASU No. 2014-04, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure,” 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 became effective for Valley on January 1, 2015 and did not to have a significant impact on its consolidated financial statements. See Note 8 for related disclosures.
	ASU No. 2014-01, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects,” amends existing guidance to permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense or benefit. For those investments in qualified affordable housing projects not accounted for using the proportional amortization method, the investment should be accounted for as an equity method investment or a cost method investment in accordance with Subtopic 970-323. ASU No. 2014-01 became effective for

Earnings_Per_Common_Share_Tabl

Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table shows the calculation of both basic and diluted earnings per common share for the three months ended March 31, 2015 and 2014.
		Three Months Ended
		March 31,
		2015		2014
		(in thousands, except for share data)
	Net income	$	30,341	$	33,835
	Basic weighted average number of common shares outstanding	232,338,775		200,128,384
	Plus: Common stock equivalents	3,146		—
	Diluted weighted average number of common shares outstanding	232,341,921		200,128,384
	Earnings per common share:
	Basic	$	0.13	$	0.17
	Diluted	0.13		0.17

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Loss After Tax	The following table presents the after-tax changes in the balances of each component of accumulated other comprehensive loss for the three months ended March 31, 2015.
		Components of Accumulated Other Comprehensive Loss												Total
														Accumulated
														Other
														Comprehensive
		Unrealized Gains			Non-credit			Unrealized Gains			Defined			Loss
		and (Losses) on			Impairment			and (Losses) on			Benefit
		Available for Sale			Losses on			Derivatives			Pension Plan
		(AFS) Securities			AFS Securities
		(in thousands)
	Balance at December 31, 2014	$	(1,890	)	$	145		$	(14,532	)	$	(26,218	)	$	(42,495	)
	Other comprehensive income (loss) before reclassifications	3,936			(421		)	(5,259		)	—			(1,744		)
	Amounts reclassified from other comprehensive income (loss)	(1,409		)	(84		)	951			119			(423		)
	Other comprehensive income (loss), net	2,527			(505		)	(4,308		)	119			(2,167		)
	Balance at March 31, 2015	$	637		$	(360	)	$	(18,840	)	$	(26,099	)	$	(44,662	)
Schedule of Accumulated Other Comprehensive Loss	The following table presents amounts reclassified from each component of accumulated other comprehensive loss on a gross and net of tax basis for the three months ended March 31, 2015 and 2014.
		Amounts Reclassified from
		Accumulated Other Comprehensive Loss
		Three Months Ended
		March 31,
	Components of Accumulated Other Comprehensive Loss	2015			2014			Income Statement
								Line Item
		(in thousands)
	Unrealized gains (losses) on AFS securities before tax	$	2,416		$	(8	)	Gains (losses) on securities transactions, net
	Tax effect	(1,007		)	3
	Total net of tax	1,409			(5		)
	Non-credit impairment losses on AFS securities before tax:
	Accretion of credit loss impairment due to an increase in expected cash flows	144			198			Interest and dividends on  investment securities (taxable)
	Tax effect	(60		)	(83		)
	Total net of tax	84			115
	Unrealized losses on derivatives (cash flow hedges) before tax	(1,629		)	(1,648		)	Interest expense
	Tax effect	678			683
	Total net of tax	(951		)	(965		)
	Defined benefit pension plan:
	Amortization of net loss	(205		)	(62		)	*
	Tax effect	86			25
	Total net of tax	(119		)	(37		)
	Total reclassifications, net of tax	$	423		$	(892	)
	*	Amortization of net loss is included in the computation of net periodic pension cost.

Fair_Value_Measurement_of_Asse1

Fair Value Measurement of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring and Non-Recurring Basis	The following tables present the assets and liabilities that are measured at fair value on a recurring and nonrecurring basis by level within the fair value hierarchy as reported on the consolidated statements of financial condition at March 31, 2015 and December 31, 2014. The assets presented under “nonrecurring fair value measurements” in the table below are not measured at fair value on an ongoing basis but are subject to fair value adjustments under certain circumstances (e.g., when an impairment loss is recognized).
		March 31,				Fair Value Measurements at Reporting Date Using:
		2015				Quoted Prices				Significant				Significant
						in Active Markets				Other				Unobservable
						for Identical				Observable Inputs				Inputs
						Assets (Level 1)				(Level 2)				(Level 3)
		(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available for sale:
	U.S. Treasury securities	$	50,473			$	50,473			$	—			$	—
	U.S. government agency securities	27,339				—				27,339				—
	Obligations of states and political subdivisions	44,207				—				44,207				—
	Residential mortgage-backed securities	617,715				—				604,277				13,438
	Trust preferred securities	8,538				—				6,508				2,030
	Corporate and other debt securities	74,502				18,272				56,230				—
	Equity securities	20,744				1,473				19,271				—
	Total available for sale	843,518				70,218				757,832				15,468
	Loans held for sale (1)(2)	3,648				—				3,648				—
	Other assets (3)	29,770				—				29,770				—
	Total assets	$	876,936			$	70,218			$	791,250			$	15,468
	Liabilities
	Other liabilities (3)	$	47,120			$	—			$	47,120			$	—
	Total liabilities	$	47,120			$	—			$	47,120			$	—
	Non-recurring fair value measurements:
	Collateral dependent impaired loans (4)	$	9,963			$	—			$	—			$	9,963
	Loan servicing rights	5,657				—				—				5,657
	Foreclosed assets (5)	2,379				—				—				2,379
	Total	$	17,999			$	—			$	—			$	17,999
						Fair Value Measurements at Reporting Date Using:
		December 31,				Quoted Prices				Significant				Significant
		2014				in Active Markets				Other				Unobservable
						for Identical				Observable Inputs				Inputs
						Assets (Level 1)				(Level 2)				(Level 3)
		(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available for sale:
	U.S. Treasury securities	$	49,443			$	49,443			$	—			$	—
	U.S. government agency securities	33,825				—				33,825				—
	Obligations of states and political subdivisions	44,051				—				44,051				—
	Residential mortgage-backed securities	644,276				—				629,696				14,580
	Trust preferred securities	20,537				—				15,808				4,729
	Corporate and other debt securities	74,012				18,241				55,771				—
	Equity securities	20,826				1,337				19,489				—
	Total available for sale	886,970				69,021				798,640				19,309
	Trading securities	14,233				—				14,233				—
	Loans held for sale (1)	17,165				—				17,165				—
	Other assets (3)	20,987				—				20,987				—
	Total assets	$	939,355			$	69,021			$	851,025			$	19,309
	Liabilities
	Other liabilities (3)	$	33,330			$	—			$	33,330			$	—
	Total liabilities	$	33,330			$	—			$	33,330			$	—
	Non-recurring fair value measurements:
	Non-performing loans held for sale	$	7,130			$	—			$	—			$	7,130
	Collateral dependent impaired loans (4)	13,985				—				—				13,985
	Loan servicing rights	3,987				—				—				3,987
	Foreclosed assets (5)	18,098				—				—				18,098
	Total	$	43,200			$	—			$	—			$	43,200
	-1	Loans held for sale carried at fair value (which consist of residential mortgages) had contractual unpaid principal balances totaling approximately $3.5 million and $16.9 million at March 31, 2015 and December 31, 2014, respectively.
	-2	Gains and losses related to the change in the fair value of loans held for sale is included in net gains on sales of loans within the non-interest income category of our consolidated statements of income and totaled a net gain of $100 thousand and $121 thousand for the three months ended March 31, 2015 and 2014, respectively.
	-3	Derivative financial instruments are included in this category.
-4	Excludes PCI loans.
-5	Includes covered real estate owned totaling $3.2 million at December 31, 2014. There were no covered loan transfers into the real estate owned during the three months ended March 31, 2015.
Changes in Level 3 Assets Measured at Fair Value on Recurring Basis	The changes in Level 3 assets measured at fair value on a recurring basis for the three months ended March 31, 2015 and 2014 are summarized below:
		Available for Sale Securities
		Three Months Ended
		March 31,
		2015				2014
		(in thousands)
	Balance, beginning of the period	$	19,309			$	28,523
	Total net (losses) gains included in other comprehensive income for the period	(792		)		48
	Sales	(2,675		)		—
	Settlements	(374		)		(1,660		)
	Balance, end of the period	$	15,468			$	26,911
Schedule of Quantitative Information about Level 3 Inputs Used to Measure Fair Value of Available for Sale Securities	The following table presents quantitative information about Level 3 inputs used to measure the fair value of these securities at March 31, 2015:
	Security Type	Valuation		Unobservable		Range		Weighted
		Technique		Input				Average
	Private label mortgage-backed securities	Discounted cash flow		Prepayment rate		0.0 - 18.2%		11.1	%
				Default rate		3.0 - 24.9		10.1
				Loss severity		40.0 - 62.9		57.1
Schedule of Gains and Losses from Fair Value Changes
Carrying Amounts and Estimated Fair Values of Financial Instruments	The carrying amounts and estimated fair values of financial instruments not measured and not reported at fair value on the consolidated statements of financial condition at March 31, 2015 and December 31, 2014 were as follows:
		Fair Value		31-Mar-15								31-Dec-14
		Hierarchy		Carrying				Fair Value				Carrying				Fair Value
				Amount								Amount
				(in thousands)
	Financial assets
	Cash and due from banks	Level 1		$	394,002			$	394,002			$	462,569			$	462,569
	Interest bearing deposits with banks	Level 1		370,712				370,712				367,838				367,838
	Investment securities held to maturity:
	U.S. Treasury securities	Level 1		139,087				153,676				139,121				151,300
	U.S. government agency securities	Level 2		13,630				14,040				14,081				14,385
	Obligations of states and political subdivisions	Level 2		490,757				512,916				500,018				519,693
	Residential mortgage-backed securities	Level 2		1,059,278				1,074,679				986,992				998,981
	Trust preferred securities	Level 2		98,458				86,080				98,456				86,243
	Corporate and other debt securities	Level 2		24,609				27,234				39,648				45,374
	Total investment securities held to maturity			1,825,819				1,868,625				1,778,316				1,815,976
	Net loans	Level 3		13,631,830				13,419,880				13,371,560				13,085,830
	Accrued interest receivable	Level 1		56,590				56,590				57,333				57,333
	Federal Reserve Bank and Federal Home Loan Bank stock (1)	Level 1		135,032				135,032				133,117				133,117
	Financial liabilities
	Deposits without stated maturities	Level 1		11,444,508				11,444,508				11,291,648				11,291,648
	Deposits with stated maturities	Level 2		2,772,235				2,837,408				2,742,468				2,807,522
	Short-term borrowings	Level 1		133,866				133,866				146,781				146,781
	Long-term borrowings	Level 2		2,529,073				2,751,489				2,526,408				2,738,122
	Junior subordinated debentures issued to capital trusts	Level 2		41,292				43,824				41,252				44,584
	Accrued interest payable (2)	Level 1		12,448				12,448				15,526				15,526
	-1	Included in other assets.
	-2	Included in accrued expenses and other liabilities.

Investment_Securities_Tables

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Securities Held to Maturity	The amortized cost, gross unrealized gains and losses and fair value of securities held to maturity at March 31, 2015 and December 31, 2014 were as follows:
		Amortized			Gross			Gross			Fair Value
		Cost			Unrealized			Unrealized
					Gains			Losses
		(in thousands)
	31-Mar-15
	U.S. Treasury securities	$	139,087		$	14,589		$	—		$	153,676
	U.S. government agency securities	13,630			410			—			14,040
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	196,849			10,245			(152		)	206,942
	Municipal bonds	293,908			12,152			(86		)	305,974
	Total obligations of states and political subdivisions	490,757			22,397			(238		)	512,916
	Residential mortgage-backed securities	1,059,278			19,205			(3,804		)	1,074,679
	Trust preferred securities	98,458			104			(12,482		)	86,080
	Corporate and other debt securities	24,609			2,625			—			27,234
	Total investment securities held to maturity	$	1,825,819		$	59,330		$	(16,524	)	$	1,868,625
	31-Dec-14
	U.S. Treasury securities	$	139,121		$	12,179		$	—		$	151,300
	U.S. government agency securities	14,081			304			—			14,385
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	197,440			9,410			(412		)	206,438
	Municipal bonds	302,578			10,955			(278		)	313,255
	Total obligations of states and political subdivisions	500,018			20,365			(690		)	519,693
	Residential mortgage-backed securities	986,992			18,233			(6,244		)	998,981
	Trust preferred securities	98,456			167			(12,380		)	86,243
	Corporate and other debt securities	39,648			5,726			—			45,374
	Total investment securities held to maturity	$	1,778,316		$	56,974		$	(19,314	)	$	1,815,976
Age of Unrealized Losses and Fair Value of Related Securities Held to Maturity	The age of unrealized losses and fair value of related securities held to maturity at March 31, 2015 and December 31, 2014 were as follows:
		Less than						More than						Total
		Twelve Months						Twelve Months
		Fair Value			Unrealized			Fair Value			Unrealized			Fair Value		Unrealized
					Losses						Losses					Losses
		(in thousands)
	31-Mar-15
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	$	22,194		$	(145	)	$	1,961		$	(7	)	$	24,155	$	(152	)
	Municipal bonds	11,876			(79		)	10,253			(7		)	22,129		(86		)
	Total obligations of states and political subdivisions	34,070			(224		)	12,214			(14		)	46,284		(238		)
	Residential mortgage-backed securities	211,113			(1,178		)	177,774			(2,626		)	388,887		(3,804		)
	Trust preferred securities	4,825			(16		)	66,111			(12,466		)	70,936		(12,482		)
	Total	$	250,008		$	(1,418	)	$	256,099		$	(15,106	)	$	506,107	$	(16,524	)
	31-Dec-14
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	$	4,927		$	(50	)	$	19,050		$	(362	)	$	23,977	$	(412	)
	Municipal bonds	—			—			28,815			(278		)	28,815		(278		)
	Total obligations of states and political subdivisions	4,927			(50		)	47,865			(640		)	52,792		(690		)
	Residential mortgage-backed securities	107,357			(563		)	276,580			(5,681		)	383,937		(6,244		)
	Trust preferred securities	—			—			66,194			(12,380		)	66,194		(12,380		)
	Total	$	112,284		$	(613	)	$	390,639		$	(18,701	)	$	502,923	$	(19,314	)
Contractual Maturities of Debt Securities Held to Maturity	The contractual maturities of investments in debt securities held to maturity at March 31, 2015 are set forth in the table below. Maturities may differ from contractual maturities in residential mortgage-backed securities because the mortgages underlying the securities may be prepaid without any penalties. Therefore, residential mortgage-backed securities are not included in the maturity categories in the following summary.
		31-Mar-15
		Amortized			Fair
		Cost			Value
		(in thousands)
	Due in one year	$	55,838		$	55,861
	Due after one year through five years	63,369			67,976
	Due after five years through ten years	330,116			352,827
	Due after ten years	317,218			317,282
	Residential mortgage-backed securities	1,059,278			1,074,679
	Total investment securities held to maturity	$	1,825,819		$	1,868,625
	Actual maturities of debt securities may differ from those presented above since certain obligations provide the issuer the right to call or prepay the obligation prior to scheduled maturity without penalty.
Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Securities Available for Sale	The amortized cost, gross unrealized gains and losses and fair value of securities available for sale at March 31, 2015 and December 31, 2014 were as follows:
		Amortized			Gross			Gross			Fair Value
		Cost			Unrealized			Unrealized
					Gains			Losses
		(in thousands)
	31-Mar-15
	U.S. Treasury securities	$	51,058		$	17		$	(602	)	$	50,473
	U.S. government agency securities	26,721			712			(94		)	27,339
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	11,101			118			—			11,219
	Municipal bonds	33,331			97			(440		)	32,988
	Total obligations of states and political subdivisions	44,432			215			(440		)	44,207
	Residential mortgage-backed securities	615,880			6,081			(4,246		)	617,715
	Trust preferred securities*	10,641			—			(2,103		)	8,538
	Corporate and other debt securities	73,241			1,712			(451		)	74,502
	Equity securities	21,071			784			(1,111		)	20,744
	Total investment securities available for sale	$	843,044		$	9,521		$	(9,047	)	$	843,518
	31-Dec-14
	U.S. Treasury securities	$	51,063		$	2		$	(1,622	)	$	49,443
	U.S. government agency securities	33,163			748			(86		)	33,825
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	11,160			—			(24		)	11,136
	Municipal bonds	33,340			127			(552		)	32,915
	Total obligations of states and political subdivisions	44,500			127			(576		)	44,051
	Residential mortgage-backed securities	643,382			5,854			(4,960		)	644,276
	Trust preferred securities*	23,194			296			(2,953		)	20,537
	Corporate and other debt securities	73,585			1,645			(1,218		)	74,012
	Equity securities	21,071			671			(916		)	20,826
	Total investment securities available for sale	$	889,958		$	9,343		$	(12,331	)	$	886,970
	*	Includes two and three pooled trust preferred securities, principally collateralized by securities issued by banks and insurance companies, at March 31, 2015 and December 31, 2014, respectively.
Age of Unrealized Losses and Fair Value of Related Securities	The age of unrealized losses and fair value of related securities available for sale at March 31, 2015 and December 31, 2014 were as follows:
		Less than						More than						Total
		Twelve Months						Twelve Months
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
		(in thousands)
	31-Mar-15
	U.S. Treasury securities	$	49,520		$	(602	)	$	—		$	—		$	49,520	$	(602	)
	U.S. government agency securities	—			—			5,293			(94		)	5,293		(94		)
	Obligations of states and political subdivisions:
	Municipal bonds	19,072			(204		)	11,044			(236		)	30,116		(440		)
	Total obligations of states and political subdivisions	19,072			(204		)	11,044			(236		)	30,116		(440		)
	Residential mortgage-backed securities	32,256			(518		)	216,266			(3,728		)	248,522		(4,246		)
	Trust preferred securities	—			—			8,538			(2,103		)	8,538		(2,103		)
	Corporate and other debt securities	18,987			(43		)	27,622			(408		)	46,609		(451		)
	Equity securities	46			(3		)	14,533			(1,108		)	14,579		(1,111		)
	Total	$	119,881		$	(1,370	)	$	283,296		$	(7,677	)	$	403,177	$	(9,047	)
	31-Dec-14
	U.S. Treasury securities	$	—		$	—		$	48,504		$	(1,622	)	$	48,504	$	(1,622	)
	U.S. government agency securities	—			—			5,442			(86		)	5,442		(86		)
	Obligations of states and political subdivisions:
	Obligations of states and state agencies	—			—			11,136			(24		)	11,136		(24		)
	Municipal bonds	13,337			(426		)	14,637			(126		)	27,974		(552		)
	Total obligations of states and political subdivisions	13,337			(426		)	25,773			(150		)	39,110		(576		)
	Residential mortgage-backed securities	57,543			(121		)	244,910			(4,839		)	302,453		(4,960		)
	Trust preferred securities	2,210			(117		)	12,085			(2,836		)	14,295		(2,953		)
	Corporate and other debt securities	27,500			(294		)	28,269			(924		)	55,769		(1,218		)
	Equity securities	158			(41		)	14,769			(875		)	14,927		(916		)
	Total	$	100,748		$	(999	)	$	379,752		$	(11,332	)	$	480,500	$	(12,331	)
Contractual Maturities of Investment Securities Available for Sale	The contractual maturities of investment securities available for sale at March 31, 2015 are set forth in the following table. Maturities may differ from contractual maturities in residential mortgage-backed securities because the mortgages underlying the securities may be prepaid without any penalties. Therefore, residential mortgage-backed securities are not included in the maturity categories in the following summary.
		31-Mar-15
		Amortized			Fair
		Cost			Value
		(in thousands)
	Due after one year through five years	$	65,316		$	66,915
	Due after five years through ten years	79,110			78,201
	Due after ten years	61,667			59,943
	Residential mortgage-backed securities	615,880			617,715
	Equity securities	21,071			20,744
	Total investment securities available for sale	$	843,044		$	843,518
	Actual maturities of debt securities may differ from those presented above since certain obligations provide the issuer the right to call or prepay the obligation prior to scheduled maturity without penalty.
Changes in Credit Loss Component of Cumulative Other-than-Temporary Impairment Losses on Debt Securities	The following table presents the changes in the credit loss component of cumulative other-than-temporary impairment losses on debt securities classified as either held to maturity or available for sale that Valley has previously recognized in earnings, for which a portion of the impairment loss (non-credit factors) was recognized in other comprehensive income for the three months ended March 31, 2015 and 2014:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Balance, beginning of period	$	8,947		$	9,990
	Accretion of credit loss impairment due to an increase in expected cash flows	(144		)	(198		)
	Sales	(2,382		)	—
	Balance, end of period	$	6,421		$	9,792
Realized Gains and Losses on Sales of Investment Securities	Gross gains (losses) realized on sales, maturities and other securities transactions related to investment securities included in earnings for the three months ended March 31, 2015 and 2014 were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Sales transactions:
	Gross gains	$	3,274		$	—
	Gross losses	(947		)	—
		$	2,327		$	—
	Maturities and other securities transactions:
	Gross gains	$	89		$	1
	Gross losses	—			(9		)
		$	89		$	(8	)
	Total gains on securities transactions, net	$	2,416		$	(8	)

Loans_Tables

Loans (Tables)	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Schedule of Loan Portfolio Non-Covered and Covered PCI Loans and Non-PCI Loans	The detail of the loan portfolio as of March 31, 2015 and December 31, 2014 was as follows:
		March 31, 2015											December 31, 2014
		Non-PCI				PCI Loans				Total			Non-PCI				PCI Loans				Total
		Loans											Loans
		(in thousands)
	Non-covered loans:
	Commercial and industrial	$	2,094,274			$	267,713			$	2,361,987		$	1,959,927			$	277,371			$	2,237,298
	Commercial real estate:
	Commercial real estate	5,142,588				954,429				6,097,017			5,053,742				978,448				6,032,190
	Construction	483,683				55,254				538,937			476,094				53,869				529,963
	Total commercial real estate loans	5,626,271				1,009,683				6,635,954			5,529,836				1,032,317				6,562,153
	Residential mortgage	2,495,827				89,955				2,585,782			2,419,044				96,631				2,515,675
	Consumer:
	Home equity	394,886				87,379				482,265			400,136				91,609				491,745
	Automobile	1,162,919				44				1,162,963			1,144,780				51				1,144,831
	Other consumer	311,102				10,682				321,784			298,389				11,931				310,320
	Total consumer loans	1,868,907				98,105				1,967,012			1,843,305				103,591				1,946,896
	Total non-covered loans	12,085,279				1,465,456				13,550,735			11,752,112				1,509,910				13,262,022
	Covered loans:
	Commercial and industrial	—				5,940				5,940			—				13,813				13,813
	Commercial real estate	—				108,856				108,856			—				128,691				128,691
	Construction	—				3,077				3,077			—				3,171				3,171
	Residential mortgage	—				62,229				62,229			—				60,697				60,697
	Consumer	—				3,624				3,624			—				5,519				5,519
	Total covered loans	—				183,726				183,726			—				211,891				211,891
	Total loans	$	12,085,279			$	1,649,182			$	13,734,461		$	11,752,112			$	1,721,801			$	13,473,913
Changes in Accretable Yield for Covered Loans	The following table presents changes in the accretable yield for PCI loans during the three months ended March 31, 2015 and 2014:
		Three Months Ended
		March 31,
		2015				2014
		(in thousands)
	Balance, beginning of period	$	336,208			$	223,799
	Accretion	(26,350		)		(13,934		)
	Balance, end of period	$	309,858			$	209,865
Changes in FDIC Loss-Share Receivable	Changes in the FDIC loss-share receivable for the three months ended March 31, 2015 and 2014 were as follows:
		Three Months Ended
		March 31,
		2015				2014
		(in thousands)
	Balance, beginning of the period	$	13,848			$	32,757
	Discount accretion of the present value at the acquisition dates	43				11
	Effect of additional cash flows on covered loans (prospective recognition)	(4,072		)		(1,856		)
	Other reimbursable expenses	98				513
	Reimbursements from the FDIC	(1,954		)		(1,424		)
	Other	(355		)		1,256
	Balance, end of the period	$	7,608			$	31,257
Past Due, Non-Accrual and Current Non-Covered Loans by Loan Portfolio Class	The following table presents past due, non-accrual and current loans (excluding PCI loans, which are accounted for on a pool basis, and non-performing loans held for sale) by loan portfolio class at March 31, 2015 and December 31, 2014:
		Past Due and Non-Accrual Loans
		30-59				60-89				Accruing Loans			Non-Accrual				Total				Current		Total
		Days				Days				90 Days or More			Loans				Past Due				Non-PCI		Non-PCI
		Past Due				Past Due				Past Due							Loans				Loans		Loans
		Loans				Loans
		(in thousands)
	31-Mar-15
	Commercial and industrial	$	4,472			$	90			$	208		$	8,285			$	13,055			$	2,081,219	$	2,094,274
	Commercial real estate:
	Commercial real estate	4,775				1,883				2,792			24,850				34,300				5,108,288		5,142,588
	Construction	6,577				—				—			5,144				11,721				471,962		483,683
	Total commercial real estate loans	11,352				1,883				2,792			29,994				46,021				5,580,250		5,626,271
	Residential mortgage	12,498				1,782				564			17,127				31,971				2,463,856		2,495,827
	Consumer loans:
	Home equity	1,170				380				—			2,042				3,592				391,294		394,886
	Automobile	1,594				415				251			—				2,260				1,160,659		1,162,919
	Other consumer	111				42				11			96				260				310,842		311,102
	Total consumer loans	2,875				837				262			2,138				6,112				1,862,795		1,868,907
	Total	$	31,197			$	4,592			$	3,826		$	57,544			$	97,159			$	11,988,120	$	12,085,279
	31-Dec-14
	Commercial and industrial	$	1,630			$	1,102			$	226		$	8,467			$	11,425			$	1,948,502	$	1,959,927
	Commercial real estate:
	Commercial real estate	8,938				113				49			22,098				31,198				5,022,544		5,053,742
	Construction	448				—				3,988			5,223				9,659				466,435		476,094
	Total commercial real estate loans	9,386				113				4,037			27,321				40,857				5,488,979		5,529,836
	Residential mortgage	6,200				3,575				1,063			17,760				28,598				2,390,446		2,419,044
	Consumer loans:
	Home equity	761				282				—			2,022				3,065				397,071		400,136
	Automobile	1,902				391				126			90				2,509				1,142,271		1,144,780
	Other consumer	319				91				26			97				533				297,856		298,389
	Total consumer loans	2,982				764				152			2,209				6,107				1,837,198		1,843,305
	Total	$	20,198			$	5,554			$	5,478		$	55,757			$	86,987			$	11,665,125	$	11,752,112
Impaired Loans	The following table presents the information about impaired loans by loan portfolio class at March 31, 2015 and December 31, 2014:
		Recorded				Recorded				Total			Unpaid				Related
		Investment				Investment				Recorded			Contractual				Allowance
		With No Related				With Related				Investment			Principal
		Allowance				Allowance							Balance
		(in thousands)
	31-Mar-15
	Commercial and industrial	$	6,214			$	21,665			$	27,879		$	33,471			$	4,824
	Commercial real estate:
	Commercial real estate	32,856				47,703				80,559			83,068				4,918
	Construction	13,197				2,962				16,159			20,825				1,008
	Total commercial real estate loans	46,053				50,665				96,718			103,893				5,926
	Residential mortgage	6,840				15,254				22,094			23,898				1,432
	Consumer loans:
	Home equity	324				4,197				4,521			4,622				764
	Total consumer loans	324				4,197				4,521			4,622				764
	Total	$	59,431			$	91,781			$	151,212		$	165,884			$	12,946
	31-Dec-14
	Commercial and industrial	$	6,579			$	21,645			$	28,224		$	33,677			$	4,929
	Commercial real estate:
	Commercial real estate	29,784				44,713				74,497			77,007				5,342
	Construction	14,502				2,299				16,801			20,694				160
	Total commercial real estate loans	44,286				47,012				91,298			97,701				5,502
	Residential mortgage	6,509				15,831				22,340			24,311				1,629
	Consumer loans:
	Home equity	235				2,911				3,146			3,247				465
	Total consumer loans	235				2,911				3,146			3,247				465
	Total	$	57,609			$	87,399			$	145,008		$	158,936			$	12,525
Average Recorded Investment and Interest Income Recognized on Impaired Loans	The following table presents by loan portfolio class, the average recorded investment and interest income recognized on impaired loans for the three months ended March 31, 2015 and 2014:
		Three Months Ended March 31,
		2015								2014
		Average				Interest				Average			Interest
		Recorded				Income				Recorded			Income
		Investment				Recognized				Investment			Recognized
		(in thousands)
	Commercial and industrial	$	28,282			$	246			$	46,784		$	369
	Commercial real estate:
	Commercial real estate	78,523				486				97,542			645
	Construction	16,670				150				19,638			144
	Total commercial real estate loans	95,193				636				117,180			789
	Residential mortgage	21,843				250				27,509			260
	Consumer loans:
	Home equity	3,485				30				1,076			13
	Total consumer loans	3,485				30				1,076			13
	Total	$	148,803			$	1,162			$	192,549		$	1,431
Pre-Modification and Post-Modification Outstanding Recorded Investments	The following table presents loans by loan portfolio class modified as TDRs during the three months ended March 31, 2015 and 2014. The pre-modification and post-modification outstanding recorded investments disclosed in the table below represent the loan carrying amounts immediately prior to the modification and the carrying amounts at March 31, 2015 and 2014, respectively.
		Three Months Ended March 31, 2015										Three Months Ended March 31, 2014
	Troubled Debt Restructurings	Number			Pre-Modification				Post-Modification			Number			Pre-Modification				Post-Modification
		of			Outstanding				Outstanding			of			Outstanding				Outstanding
		Contracts			Recorded				Recorded			Contracts			Recorded				Recorded
					Investment				Investment						Investment				Investment
		($ in thousands)
	Commercial and industrial	6			$	1,584			$	1,534		11			$	9,762			$	9,093
	Commercial real estate:
	Commercial real estate	1			5,000				5,000			5			15,946				15,060
	Construction	—			—				—			1			4,827				4,827
	Total commercial real estate	1			5,000				5,000			6			20,773				19,887
	Residential mortgage	1			280				278			—			—				—
	Total	8			$	6,864			$	6,812		17			$	30,535			$	28,980
Non-Covered Loans Modified as TDR	There were no non-PCI loans modified as TDRs within the previous 12 months for which there was a payment default (90 days or more past due) during the three months ended March 31, 2015
Risk Category of Loans	The following table presents the risk category of loans (excluding PCI loans) by class of loans based on the most recent analysis performed at March 31, 2015 and December 31, 2014.
	Credit exposure - by internally assigned risk rating	Pass				Special				Substandard			Doubtful				Total Non-PCI Loans
						Mention
		(in thousands)
	31-Mar-15
	Commercial and industrial	$	1,970,835			$	67,846			$	52,448		$	3,145			$	2,094,274
	Commercial real estate	4,986,138				42,198				114,252			—				5,142,588
	Construction	464,080				1,633				15,499			2,471				483,683
	Total	$	7,421,053			$	111,677			$	182,199		$	5,616			$	7,720,545
	31-Dec-14
	Commercial and industrial	$	1,865,472			$	50,453			$	44,002		$	—			$	1,959,927
	Commercial real estate	4,903,185				40,232				110,325			—				5,053,742
	Construction	455,145				1,923				16,482			2,544				476,094
	Total	$	7,223,802			$	92,608			$	170,809		$	2,544			$	7,489,763
Recorded Investment in Loan Classes Based on Payment Activity	The following table presents the recorded investment in PCI loans by class based on individual loan payment activity as of March 31, 2015 and December 31, 2014.
	Credit exposure - by payment activity	Performing				Non-Performing				Total
		Loans				Loans				PCI Loans
		(in thousands)
	31-Mar-15
	Commercial and industrial	$	253,446			$	20,207			$	273,653
	Commercial real estate	1,054,600				8,685				1,063,285
	Construction	57,204				1,127				58,331
	Residential mortgage	148,972				3,212				152,184
	Consumer	90,040				11,689				101,729
	Total	$	1,604,262			$	44,920			$	1,649,182
	31-Dec-14
	Commercial and industrial	$	272,027			$	19,157			$	291,184
	Commercial real estate	1,091,784				15,355				1,107,139
	Construction	52,802				4,238				57,040
	Residential mortgage	153,789				3,539				157,328
	Consumer	103,686				5,424				109,110
	Total	$	1,674,088			$	47,713			$	1,721,801
	Other real estate owned totaled $21.8 million at March 31, 2015 and included foreclosed residential real estate properties totaling $6.7 million. Residential mortgage and consumer loans secured by residential real estate properties for which formal foreclosure proceedings are in process totaled $14.4 million at March 31, 2015.
	The following table presents the recorded investment in those loan classes based on payment activity as of March 31, 2015 and December 31, 2014:
	Credit exposure - by payment activity	Performing				Non-Performing				Total Non-PCI
		Loans				Loans				Loans
		(in thousands)
	31-Mar-15
	Residential mortgage	$	2,478,700			$	17,127			$	2,495,827
	Home equity	392,844				2,042				394,886
	Automobile	1,162,919				—				1,162,919
	Other consumer	311,006				96				311,102
	Total	$	4,345,469			$	19,265			$	4,364,734
	31-Dec-14
	Residential mortgage	$	2,401,284			$	17,760			$	2,419,044
	Home equity	398,114				2,022				400,136
	Automobile	1,144,690				90				1,144,780
	Other consumer	298,292				97				298,389
	Total	$	4,242,380			$	19,969			$	4,262,349

Allowance_for_Credit_Losses_Ta

Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Summary of Allowance for Credit Losses	The following table summarizes the allowance for credit losses at March 31, 2015 and December 31, 2014:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Components of allowance for credit losses:
	Allowance for non-covered loans	$	102,431		$	102,153
	Allowance for covered loans	200			200
	Total allowance for loan losses	102,631			102,353
	Allowance for unfunded letters of credit	1,934			1,934
	Total allowance for credit losses	$	104,565		$	104,287
Summary of Provision for Credit Losses	The following table summarizes the provision for credit losses for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Components of provision for credit losses:
	Provision for non-covered loans	$	—		$	4,949
	Provision for covered loans	—			—
	Total provision for loan losses	—			4,949
	Provision for unfunded letters of credit	—			(951		)
	Total provision for credit losses	$	—		$	3,998
Summary of Activity in Allowance for Loan Losses	The following table details activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2015 and 2014:
		Commercial			Commercial			Residential			Consumer			Unallocated			Total
		and Industrial			Real Estate			Mortgage
		(in thousands)
	Three Months Ended
	March 31, 2015:
	Allowance for loan losses:
	Beginning balance	$	43,676		$	42,840		$	5,093		$	5,179		$	5,565		$	102,353
	Loans charged-off (1)	(753		)	(150		)	(49		)	(714		)	—			(1,666		)
	Charged-off loans recovered	1,051			460			114			319			—			1,944
	Net recoveries (charge-offs)	298			310			65			(395		)	—			278
	Provision for loan losses	919			(1,494		)	(1,066		)	188			1,453			—
	Ending balance	$	44,893		$	41,656		$	4,092		$	4,972		$	7,018		$	102,631
	Three Months Ended
	March 31, 2014:
	Allowance for loan losses:
	Beginning balance	$	51,551		$	42,343		$	7,786		$	4,359		$	7,578		$	113,617
	Loans charged-off (1)	(8,614		)	(4,490		)	(63		)	(1,072		)	—			(14,239		)
	Charged-off loans recovered	544			1,337			79			422			—			2,382
	Net charge-offs	(8,070		)	(3,153		)	16			(650		)	—			(11,857		)
	Provision for loan losses	6,451			(808		)	(823		)	398			(269		)	4,949
	Ending balance	$	49,932		$	38,382		$	6,979		$	4,107		$	7,309		$	106,709
Summary of Allocation of Allowance for Loan Losses and Related Loans by Loan Portfolio Segment Disaggregated Based on Impairment Methodology	The following table represents the allocation of the allowance for loan losses and the related loans by loan portfolio segment disaggregated based on the impairment methodology at March 31, 2015 and December 31, 2014.
		Commercial			Commercial			Residential			Consumer			Unallocated			Total
		and Industrial			Real Estate			Mortgage
		(in thousands)
	31-Mar-15
	Allowance for loan losses:
	Individually evaluated for impairment	$	4,824		$	5,926		$	1,432		$	764		$	—		$	12,946
	Collectively evaluated for impairment	39,899			35,730			2,630			4,208			7,018			89,485
	Loans acquired with discounts related to credit quality	170			—			30			—			—			200
	Total	$	44,893		$	41,656		$	4,092		$	4,972		$	7,018		$	102,631
	Loans:
	Individually evaluated for impairment	$	27,879		$	96,718		$	22,094		$	4,521		$	—		$	151,212
	Collectively evaluated for impairment	2,066,395			5,529,553			2,473,733			1,864,386			—			11,934,067
	Loans acquired with discounts related to credit quality	273,653			1,121,616			152,184			101,729			—			1,649,182
	Total	$	2,367,927		$	6,747,887		$	2,648,011		$	1,970,636		$	—		$	13,734,461
	31-Dec-14
	Allowance for loan losses:
	Individually evaluated for impairment	$	4,929		$	5,502		$	1,629		$	465		$	—		$	12,525
	Collectively evaluated for impairment	38,577			37,338			3,434			4,714			5,565			89,628
	Loans acquired with discounts related to credit quality	170			—			30			—			—			200
	Total	$	43,676		$	42,840		$	5,093		$	5,179		$	5,565		$	102,353
	Loans:
	Individually evaluated for impairment	$	28,224		$	91,298		$	22,340		$	3,146		$	—		$	145,008
	Collectively evaluated for impairment	1,931,703			5,438,538			2,396,704			1,840,159			—			11,607,104
	Loans acquired with discounts related to credit quality	291,184			1,164,179			157,328			109,110			—			1,721,801
	Total	$	2,251,111		$	6,694,015		$	2,576,372		$	1,952,415		$	—		$	13,473,913

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	The changes in the carrying amount of goodwill as allocated to Valley's business segments, or reporting units thereof, for goodwill impairment analysis were:
		Business Segment / Reporting Unit*
		Wealth		Consumer			Commercial			Investment		Total
		Management		Lending			Lending			Management
		(in thousands)
	Balance at December 31, 2014	$	20,517	$	168,922		$	252,900		$	133,553	$	575,892
	Goodwill from business combinations	—		450			869			323		1,642
	Balance at March 31, 2015	$	20,517	$	169,372		$	253,769		$	133,876	$	577,534
Other Intangible Assets	The following table summarizes other intangible assets as of March 31, 2015 and December 31, 2014:
		Gross		Accumulated			Valuation			Net
		Intangible		Amortization			Allowance			Intangible
		Assets								Assets
		(in thousands)
	31-Mar-15
	Loan servicing rights	$	73,096	$	(53,597	)	$	(676	)	$	18,823
	Core deposits	43,384		(29,219		)	—			14,165
	Other	4,374		(2,338		)	—			2,036
	Total other intangible assets	$	120,854	$	(85,154	)	$	(676	)	$	35,024
	31-Dec-14
	Loan servicing rights	$	72,154	$	(51,708	)	$	(592	)	$	19,854
	Core deposits	46,694		(29,916		)	—			16,778
	Other	4,591		(2,448		)	—			2,143
	Total other intangible assets	$	123,439	$	(84,072	)	$	(592	)	$	38,775
Estimated Future Amortization Expense	The following presents the estimated future amortization expense of other intangible assets for the remainder of 2015 through 2019:
		Loan		Core			Other
		Servicing		Deposits
		Rights
		(in thousands)
	2015	$	4,070	$	2,446		$	325
	2016	4,220		2,648			233
	2017	3,298		2,120			220
	2018	2,511		1,767			193
	2019	1,838		1,497			181

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Consolidated Statements of Financial Condition Related to Fair Value of Derivative Financial Instruments	Amounts included in the consolidated statements of financial condition related to the fair value of Valley’s derivative financial instruments were as follows:
		March 31, 2015								31-Dec-14
		Fair Value								Fair Value
		Other Assets			Other Liabilities			Notional Amount		Other Assets		Other Liabilities		Notional Amount
		(in thousands)
	Derivatives designated as hedging instruments:
	Cash flow hedge interest rate caps and swaps	$	1,897		$	26,704		$	1,007,000	$	2,229	$	19,302	$	1,007,000
	Fair value hedge interest rate swaps	8,999			1,536			133,358		6,257		1,482		133,406
	Total derivatives designated as hedging instruments	$	10,896		$	28,240		$	1,140,358	$	8,486	$	20,784	$	1,140,406
	Derivatives not designated as hedging instruments:
	Interest rate swaps and embedded derivatives	$	18,832		$	18,828		$	393,283	$	12,464	$	12,455	$	378,849
	Mortgage banking derivatives	42			52			21,069		37		91		40,857
	Total derivatives not designated as hedging instruments	$	18,874		$	18,880		$	414,352	$	12,501	$	12,546	$	419,706
Losses Related to Interest Rate Derivatives Designated as Hedges of Cash Flows	Losses included in the consolidated statements of income and in other comprehensive income, on a pre-tax basis, related to interest rate derivatives designated as hedges of cash flows were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Amount of loss reclassified from accumulated other comprehensive loss to interest expense	$	(1,629	)	$	(1,648	)
	Amount of loss recognized in other comprehensive income	(8,911		)	(6,298		)
Gains (Losses) Related to Interest Rate Derivatives Designated as Hedges of Fair Value	Gains (losses) included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Derivative - interest rate swaps:
	Interest income	$	(54	)	$	(23	)
	Interest expense	2,741			(3,175		)
	Hedged item - loans, deposits and long-term borrowings:
	Interest income	$	54		$	23
	Interest expense	(2,781		)	3,144
(Losses) Gains Related to Derivative Instruments Not Designated as Hedging Instruments	The net gains (losses) included in the consolidated statements of income related to derivative instruments not designated as hedging instruments were as follows:
		Three Months Ended
		March 31,
		2015			2014
		(in thousands)
	Non-designated hedge interest rate derivatives
	Other non-interest expense	$	38		$	(173	)

Balance_Sheet_Offsetting_Table

Balance Sheet Offsetting (Tables)	3 Months Ended
	Mar. 31, 2015
Offsetting [Abstract]
Gross Presentation Effects of Offsetting and Net Presentation of Valley's Financial Instruments	The table below presents information about Valley’s financial instruments that are eligible for offset in the consolidated statements of financial condition as of March 31, 2015 and December 31, 2014.
								Gross Amounts Not Offset
		Gross Amounts		Gross Amounts		Net Amounts		Financial			Cash				Net
		Recognized		Offset		Presented		Instruments			Collateral				Amount
		(in thousands)
	31-Mar-15
	Assets:
	Interest rate caps and swaps	$	29,728	$	—	$	29,728	$	(10,859	)	$	—			$	18,869
	Liabilities:
	Interest rate caps and swaps	$	47,068	$	—	$	47,068	$	(10,859	)	$	(36,209	)		$	—
	Repurchase agreements	395,000		—		395,000		—			(395,000		)	*	—
	Total	$	442,068	$	—	$	442,068	$	(10,859	)	$	(431,209	)		$	—
	31-Dec-14
	Assets:
	Interest rate caps and swaps	$	20,950	$	—	$	20,950	$	(8,504	)	$	—			$	12,446
	Liabilities:
	Interest rate caps and swaps	$	33,239	$	—	$	33,239	$	(8,504	)	$	(24,735	)		$	—
	Repurchase agreements	395,000		—		395,000		—			(395,000		)	*	—
	Total	$	428,239	$	—	$	428,239	$	(8,504	)	$	(419,735	)		$	—
	*	Represents fair value of non-cash pledged investment securities.

Tax_Credit_Investments_Tables

Tax Credit Investments (Tables)	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments	The following table presents the balances of Valley’s affordable housing tax credit investments, other tax credit investments, and related unfunded commitments at March 31, 2015 and December 31, 2014:
		March 31,		December 31,
		2015		2014
		(in thousands)
	Other Assets:
	Affordable housing tax credit investments, net	$	34,843	$	36,009
	Other tax credit investments, net	62,693		66,023
	Total tax credit investments, net	$	97,536	$	102,032
	Other Liabilities:
	Unfunded affordable housing tax credit commitments	$	8,080	$	8,800
	Unfunded other tax credit commitments	418		418
	Total unfunded tax credit commitments	$	8,498	$	9,218
Affordable Housing Tax Credit Investments and Other Tax Credit Investments	The following table presents other information relating to Valley’s affordable housing tax credit investments and other tax credit investments for the three months ended March 31, 2015 and 2014:
		Three Months Ended
		March 31,
		2015		2014
		(in thousands)
	Components of Income Tax Expense:
	Affordable housing tax credits and other tax benefits	$	1,731	$	1,393
	Other tax credit investment credits and tax benefits	3,618		3,188
	Total reduction in income tax expense	$	5,349	$	4,581
	Amortization of Tax Credit Investments:
	Affordable housing tax credit investment losses	$	677	$	440
	Affordable housing tax credit investment impairment losses	488		—
	Other tax credit investment losses	297		398
	Other tax credit investment impairment losses	3,034		2,878
	Total amortization of tax credit investments recorded in non-interest expense	$	4,496	$	3,716

Business_Combinations_Details

Business Combinations (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended
	Nov. 01, 2014	Dec. 01, 2014	Mar. 31, 2015	Dec. 31, 2014
		Branch
Business Acquisition [Line Items]
Common stock, shares authorized (in shares)			332,023,233	332,023,233
First United Bancorp, Inc. [Member]
Business Acquisition [Line Items]
Assets acquired	$1,700,000,000
Loans acquired	1,200,000,000
Deposits acquired	1,400,000,000
Number of branches acquired (in branch)		20
Common stock issued per share held	$0.89
Value of transaction based on closing stock price	300,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	30,700,000
Payments to Acquire Businesses, Gross	8,900,000
Increase in goodwill			$1,600,000

Earnings_Per_Common_Share_Addi

Earnings Per Common Share - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Anti-dilutive common stock options and warrants (in shares)	6,200,000	6,600,000
Earnings Per Share Reconciliation [Abstract]
Net income	$30,341	$33,835
Basic weighted average number of common shares outstanding (in shares)	232,338,775	200,128,384
Plus: Common stock equivalents (in shares)	3,146	0
Diluted weighted average number of common shares outstanding (in shares)	232,341,921	200,128,384
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in usd per share)	$0.13	$0.17
Diluted (in usd per share)	$0.13	$0.17

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Loss - Schedule of Changes in Accumulated Other Comprehensive Loss After Tax (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Accumulated Other Comprehensive Income (Loss), Beginning Balance	($42,495)
Total other comprehensive (loss) income	-2,167	4,588
Total Accumulated Other Comprehensive Income (Loss), Ending Balance	-44,662
Unrealized Gains and Losses on Available for Sale (AFS) Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income before reclassifications	3,936
Amounts reclassified from other comprehensive income	-1,409
Total other comprehensive (loss) income	2,527
Total Accumulated Other Comprehensive Income (Loss), Ending Balance	637	-1,890
Non-Credit Impairment Losses on AFS Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income before reclassifications	-421
Amounts reclassified from other comprehensive income	-84
Total other comprehensive (loss) income	-505
Total Accumulated Other Comprehensive Income (Loss), Ending Balance	-360	145
Unrealized Gains and Losses on Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income before reclassifications	-5,259
Amounts reclassified from other comprehensive income	951
Total other comprehensive (loss) income	-4,308
Total Accumulated Other Comprehensive Income (Loss), Ending Balance	-18,840	-14,532
Total Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income before reclassifications	-1,744
Amounts reclassified from other comprehensive income	-423
Total other comprehensive (loss) income	-2,167
Total Accumulated Other Comprehensive Income (Loss), Ending Balance	-44,662	-42,495
Defined Benefit Pension Plan [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income before reclassifications	0
Amounts reclassified from other comprehensive income	119
Total other comprehensive (loss) income	119
Total Accumulated Other Comprehensive Income (Loss), Ending Balance	($26,099)	($26,218)

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Reclassification Out Of Accumulated Other Comprehensive Loss [LineItems]
Interest and dividends on investment	$144	$198
Interest expense	-38,899	-39,014
Amounts Reclassified from Accumulated Other Comprehensive Loss, tax effect	-12,272	-830
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Out Of Accumulated Other Comprehensive Loss [LineItems]
Interest expense	-1,629	-1,648
Amounts Reclassified from Accumulated Other Comprehensive Loss, net of tax	423	-892
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized Gains and Losses on Available for Sale (AFS) Securities [Member]
Reclassification Out Of Accumulated Other Comprehensive Loss [LineItems]
Gains on securities transactions, net	2,416	-8
Amounts Reclassified from Accumulated Other Comprehensive Loss, tax effect	-1,007	3
Amounts Reclassified from Accumulated Other Comprehensive Loss, net of tax	1,409	-5
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Non-Credit Impairment Losses on AFS Securities [Member]
Reclassification Out Of Accumulated Other Comprehensive Loss [LineItems]
Interest and dividends on investment	144	198
Amounts Reclassified from Accumulated Other Comprehensive Loss, tax effect	-60	-83
Amounts Reclassified from Accumulated Other Comprehensive Loss, net of tax	84	115
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized Losses on Derivatives (Cash Flow Hedges) Before Tax [Member]
Reclassification Out Of Accumulated Other Comprehensive Loss [LineItems]
Interest expense	-1,629	-1,648
Amounts Reclassified from Accumulated Other Comprehensive Loss, tax effect	678	683
Amounts Reclassified from Accumulated Other Comprehensive Loss, net of tax	-951	-965
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Defined Benefit Pension Plans [Member]
Reclassification Out Of Accumulated Other Comprehensive Loss [LineItems]
Amortization of net actuarial loss	-205	-62
Amounts Reclassified from Accumulated Other Comprehensive Loss, tax effect	86	25
Amounts Reclassified from Accumulated Other Comprehensive Loss, net of tax	($119)	($37)

Fair_Value_Measurement_of_Asse2

Fair Value Measurement of Assets and Liabilities - Assets and Liabilities Measured at Fair Value on Recurring and Non-Recurring Basis (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	$843,518	$886,970
Trading securities	0	14,233
U.S. Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	50,473	49,443
U.S. Government Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	27,339	33,825
Obligations of States and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	44,207	44,051
Residential Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	617,715	644,276
Trust Preferred Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	8,538	20,537
Corporate and Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	74,502	74,012
Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	20,744	20,826
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	70,218	69,021
Trading securities		0
Loans held for sale	0	0
Other assets	0	0
Total assets	70,218
Other liabilities	0	0
Total Liabilities Fair Value Disclosure		0
Total liabilities	0
Total Assets Fair Value Disclosure		69,021
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | U.S. Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	50,473	49,443
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | U.S. Government Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | Trust Preferred Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | Corporate and Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	18,272	18,241
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	1,473	1,337
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Non-Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateral dependent impaired loans	0	0
Loan servicing rights	0	0
Foreclosed assets	0	0
Total	0
Non Recurring Fair Value Measurements Asset Liability Total		0
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	757,832	798,640
Trading securities		14,233
Loans held for sale	3,648	17,165
Other assets	29,770	20,987
Total assets	791,250
Other liabilities	47,120	33,330
Total Liabilities Fair Value Disclosure		33,330
Total liabilities	47,120
Total Assets Fair Value Disclosure		851,025
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | U.S. Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | U.S. Government Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	27,339	33,825
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	44,207	44,051
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	604,277	629,696
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | Trust Preferred Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	6,508	15,808
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | Corporate and Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	56,230	55,771
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	19,271	19,489
Significant Other Observable Inputs (Level 2) [Member] | Non-Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateral dependent impaired loans	0	0
Loan servicing rights	0	0
Foreclosed assets	0	0
Non Recurring Fair Value Measurements Asset Liability Total		0
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	15,468	19,309
Trading securities		0
Loans held for sale	0	0
Other assets	0	0
Total assets	15,468
Other liabilities	0	0
Total Liabilities Fair Value Disclosure		0
Total liabilities	0
Total Assets Fair Value Disclosure		19,309
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | U.S. Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | U.S. Government Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	13,438	14,580
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | Trust Preferred Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	2,030	4,729
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | Corporate and Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Non-Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateral dependent impaired loans	9,963	13,985
Loan servicing rights	5,657	3,987
Foreclosed assets	2,379	18,098
Total	17,999
Non Recurring Fair Value Measurements Asset Liability Total		43,200
Fair Value [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	843,518	886,970
Trading securities		14,233
Loans held for sale	3,648	17,165
Other assets	29,770	20,987
Total assets	876,936
Other liabilities	47,120	33,330
Total Liabilities Fair Value Disclosure		33,330
Total liabilities	47,120
Total Assets Fair Value Disclosure		939,355
Fair Value [Member] | Recurring Fair Value Measurements [Member] | U.S. Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	50,473	49,443
Fair Value [Member] | Recurring Fair Value Measurements [Member] | U.S. Government Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	27,339	33,825
Fair Value [Member] | Recurring Fair Value Measurements [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	44,207	44,051
Fair Value [Member] | Recurring Fair Value Measurements [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	617,715	644,276
Fair Value [Member] | Recurring Fair Value Measurements [Member] | Trust Preferred Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	8,538	20,537
Fair Value [Member] | Recurring Fair Value Measurements [Member] | Corporate and Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	74,502	74,012
Fair Value [Member] | Recurring Fair Value Measurements [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	20,744	20,826
Fair Value [Member] | Non-Recurring Fair Value Measurements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateral dependent impaired loans	9,963	13,985
Loan servicing rights	5,657	3,987
Foreclosed assets	2,379	18,098
Total	17,999
Non Recurring Fair Value Measurements Asset Liability Total		43,200
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Subordinated Debt Obligations, Fair Value Disclosure	$43,824	$44,584

Fair_Value_Measurement_of_Asse3

Fair Value Measurement of Assets and Liabilities - Assets and Liabilities Measured at Fair Value on Recurring and Non-Recurring Basis Non-Printing (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Fair Value Disclosures [Abstract]
Unpaid principal balances of loans held for sale	$3.50	$16.90

Fair_Value_Measurement_of_Asse4

Fair Value Measurement of Assets and Liabilities - Changes in Level 3 Assets Measured at Fair Value on Recurring Basis (Detail) (Available-for-sale Securities [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of the period	$19,309	$28,523
Total net (losses) gains included in other comprehensive income for the period	-792	48
Sales	-2,675	0
Settlements	-374	-1,660
Balance, end of the period	$15,468	$26,911

Fair_Value_Measurement_of_Asse5

Fair Value Measurement of Assets and Liabilities - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Transfer of loans to loans held for sale	$0	$27,329,000
Impaired collateral dependent loans, charge-offs	850,000	1,000,000
Collateral dependent impaired loans, recorded investment	11,900,000
Specific valuation allowance allocations	1,900,000
Reported net carrying amount of impaired loans	10,000,000
Valuation of loan servicing rights, discount rate	8.00%
Net recoveries of impairment charges	84,000	100,000
Fair Value, Unobservable Inputs Quantitative Information For Assets Measured On Nonrecurring Basis, Foreclosed Assets, Discount Rate	4.80%
Foreclosed assets measured at fair value upon initial recognition	2,400,000
Allowance for loan losses, charge-offs	500,000	1,500,000
Loss due to re-measurement of repossessed assets	1,800,000
Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation of loan servicing rights, prepayment rate	0.00%
Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation of loan servicing rights, prepayment rate	25.00%
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate on impaired loans	38.20%
Non-Performing Loans [Member] | Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Transfer of loans to loans held for sale	7,100,000
Available-for-sale Securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Changes in unrealized losses on Level 3 securities	0	0
Impaired trust preferred securities ,fair value	$15,468,000	$26,911,000	$19,309,000	$28,523,000

Fair_Value_Measurement_of_Asse6

Fair Value Measurement of Assets and Liabilities - Schedule of Quantitative Information about Level 3 Inputs Used to Measure Fair Value of Available for Sale Securities (Detail) (Significant Unobservable Inputs (Level 3) [Member], Residential Mortgage-Backed Securities [Member])	3 Months Ended
	Mar. 31, 2015
Fair Value Assets Measured On Recurring Basis [Line Items]
Valuation technique to measure fair value	Discounted cash flow
Prepayment rate, Weighted Average of unobservable inputs	11.10%
Default rate, Weighted Average of unobservable inputs	10.10%
Loss severity, Weighted Average of unobservable inputs	57.10%
Minimum [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Prepayment rate, Range of unobservable inputs	0.00%
Default rate, Range of unobservable inputs	3.00%
Loss severity, Range of unobservable inputs	40.00%
Maximum [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Prepayment rate, Range of unobservable inputs	18.20%
Default rate, Range of unobservable inputs	24.90%
Loss severity, Range of unobservable inputs	62.90%

Fair_Value_Measurement_of_Asse7

Fair Value Measurement of Assets and Liabilities - Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Interest bearing deposits with banks	$370,712	$367,838
Total investment securities held to maturity	1,868,625	1,815,976
Accrued interest receivable	56,590	57,333
Time	2,772,235	2,742,468
Carrying Amount [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	1,825,819	1,778,316
Carrying Amount [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Cash and due from banks	394,002	462,569
Interest bearing deposits with banks	370,712	367,838
Accrued interest receivable	56,590	57,333
Federal Reserve Bank and Federal Home Loan Bank stock	135,032	133,117
Deposits without stated maturities	11,444,508	11,291,648
Short-term borrowings	133,866	146,781
Accrued interest payable	12,448	15,526
Carrying Amount [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	139,087	139,121
Carrying Amount [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Time	2,772,235	2,742,468
Long-term borrowings	2,529,073	2,526,408
Junior subordinated debentures issued to capital trusts	41,292	41,252
Carrying Amount [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Agency Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	13,630	14,081
Carrying Amount [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of States and Political Subdivisions [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	490,757	500,018
Carrying Amount [Member] | Significant Other Observable Inputs (Level 2) [Member] | Residential Mortgage-Backed Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	1,059,278	986,992
Carrying Amount [Member] | Significant Other Observable Inputs (Level 2) [Member] | Trust Preferred Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	98,458	98,456
Carrying Amount [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate and Other Debt Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	24,609	39,648
Carrying Amount [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Net loans	13,631,830	13,371,560
Fair Value [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	1,868,625	1,815,976
Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Cash and due from banks	394,002	462,569
Interest bearing deposits with banks	370,712	367,838
Accrued interest receivable	56,590	57,333
Federal Reserve Bank and Federal Home Loan Bank stock	135,032	133,117
Deposits without stated maturities	11,444,508	11,291,648
Short-term borrowings	133,866	146,781
Accrued interest payable	12,448	15,526
Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	153,676	151,300
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Time	2,837,408	2,807,522
Long-term borrowings	2,751,489	2,738,122
Junior subordinated debentures issued to capital trusts	43,824	44,584
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Agency Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	14,040	14,385
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of States and Political Subdivisions [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	512,916	519,693
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Residential Mortgage-Backed Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	1,074,679	998,981
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Trust Preferred Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	86,080	86,243
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate and Other Debt Securities [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Total investment securities held to maturity	27,234	45,374
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value and carrying amounts of assets and liabilities not measured and not reported at fair value on the consolidated statement of financial condition
Net loans	$13,419,880	$13,085,830

Investment_Securities_Addition

Investment Securities - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
	Security		Security
Investment Securities [Line Items]
Held to Maturity, Amortized Cost	$1,825,819,000		$1,778,316,000
Loss on Sale of Investments	947,000	0
Available for sale	843,518,000		886,970,000
Fair value of trading securities	0		14,233,000
Number of security positions in the securities held to maturity portfolio in an unrealized loss position	72		57
Fair value of investments held to maturity pledged as collateral	902,000,000
Weighted-average remaining expected life of residential mortgage-backed securities held to maturity, years	6 years 8 months
Amortized cost	843,044,000		889,958,000
Gross unrealized losses	9,047,000		12,331,000
Gross unrealized losses	9,047,000		12,331,000
Fair value of securities available for sale pledged as collateral	396,700,000
Weighted-average remaining expected life of residential mortgage-backed securities available for sale, years	5 years 2 months 5 days
Gains (losses) on securities transactions, net	2,416,000	-8,000
Interest income on trading securities	213,000	290,000
Amortized Cost		25,852,000
Gross gains, Sales transactions	3,274,000	0
The credit loss component of cumulative other-than-temporary impairment losses recognized in earnings	6,421,000	9,792,000	8,947,000	9,990,000
Number of security positions in the securities available for sale portfolio in an unrealized loss position	83		96
Corporate and Other Debt Securities [Member]
Investment Securities [Line Items]
Held to Maturity, Amortized Cost	9,800,000
Trust Preferred Securities Subject to Mandatory Redemption [Member] | Previously Other-Than-Temporarily Impaired Securities [Member]
Investment Securities [Line Items]
Available for sale	2,000,000
Amortized cost	2,800,000
Trust Preferred Securities [Member] | Non-Rated [Member]
Investment Securities [Line Items]
Number of security positions in the securities held to maturity portfolio in an unrealized loss position	4
Pooled Trust Preferred Securities [Member]
Investment Securities [Line Items]
Available for sale	8,500,000
Amortized cost	10,600,000
Number of security positions in the securities available for sale portfolio in an unrealized loss position	2		2
Pooled Trust Preferred Securities [Member] | Investment Grade [Member]
Investment Securities [Line Items]
Gross unrealized losses	1,400,000
Number of security positions in the securities available for sale portfolio in an unrealized loss position	1
Three Private Label Mortgage-Backed Securities [Member]
Investment Securities [Line Items]
Available for sale	13,400,000
Amortized cost	13,300,000
Obligations of States and Political Subdivisions [Member]
Investment Securities [Line Items]
Held to Maturity, Amortized Cost	490,757,000		500,018,000
Available for sale	44,207,000		44,051,000
Amortized cost	44,432,000		44,500,000
Gross unrealized losses	440,000		576,000
Gross unrealized losses	440,000		576,000
Residential Mortgage-Backed Securities [Member]
Investment Securities [Line Items]
Held to Maturity, Amortized Cost	1,059,278,000		986,992,000
Available for sale	617,715,000		644,276,000
Amortized cost	615,880,000		643,382,000
Gross unrealized losses	4,246,000		4,960,000
Gross unrealized losses	4,246,000		4,960,000
Pooled Trust Preferred Securities Sold [Member]
Investment Securities [Line Items]
Available for sale	2,600,000
Trust Preferred Securities Subject to Mandatory Redemption [Member]
Investment Securities [Line Items]
Available for sale	$8,300,000

Investment_Securities_Amortize

Investment Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Securities Held to Maturity (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	$1,825,819	$1,778,316
Gross Unrealized Gains	59,330	56,974
Gross Unrealized Losses	-16,524	-19,314
Fair Value	1,868,625	1,815,976
U.S. Treasury Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	139,087	139,121
Gross Unrealized Gains	14,589	12,179
Gross Unrealized Losses	0	0
Fair Value	153,676	151,300
U.S. Government Agency Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	13,630	14,081
Gross Unrealized Gains	410	304
Gross Unrealized Losses	0	0
Fair Value	14,040	14,385
Obligations of States and State Agencies [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	196,849	197,440
Gross Unrealized Gains	10,245	9,410
Gross Unrealized Losses	-152	-412
Fair Value	206,942	206,438
Municipal Bonds [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	293,908	302,578
Gross Unrealized Gains	12,152	10,955
Gross Unrealized Losses	-86	-278
Fair Value	305,974	313,255
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	490,757	500,018
Gross Unrealized Gains	22,397	20,365
Gross Unrealized Losses	-238	-690
Fair Value	512,916	519,693
Residential Mortgage-Backed Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	1,059,278	986,992
Gross Unrealized Gains	19,205	18,233
Gross Unrealized Losses	-3,804	-6,244
Fair Value	1,074,679	998,981
Trust Preferred Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	98,458	98,456
Gross Unrealized Gains	104	167
Gross Unrealized Losses	-12,482	-12,380
Fair Value	86,080	86,243
Corporate and Other Debt Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Held to Maturity, Amortized Cost	24,609	39,648
Gross Unrealized Gains	2,625	5,726
Gross Unrealized Losses	0	0
Fair Value	$27,234	$45,374

Investment_Securities_Age_of_U

Investment Securities - Age of Unrealized Losses and Fair Value of Related Securities Held to Maturity (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	$250,008	$112,284
Less than Twelve Months, Unrealized Losses	-1,418	-613
More than Twelve Months, Fair Value	256,099	390,639
More than Twelve Months, Unrealized Losses	-15,106	-18,701
Total, Fair Value	506,107	502,923
Total, Unrealized Losses	-16,524	-19,314
Obligations of States and State Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	22,194	4,927
Less than Twelve Months, Unrealized Losses	-145	-50
More than Twelve Months, Fair Value	1,961	19,050
More than Twelve Months, Unrealized Losses	-7	-362
Total, Fair Value	24,155	23,977
Total, Unrealized Losses	-152	-412
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	11,876	0
Less than Twelve Months, Unrealized Losses	-79	0
More than Twelve Months, Fair Value	10,253	28,815
More than Twelve Months, Unrealized Losses	-7	-278
Total, Fair Value	22,129	28,815
Total, Unrealized Losses	-86	-278
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	34,070	4,927
Less than Twelve Months, Unrealized Losses	-224	-50
More than Twelve Months, Fair Value	12,214	47,865
More than Twelve Months, Unrealized Losses	-14	-640
Total, Fair Value	46,284	52,792
Total, Unrealized Losses	-238	-690
Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	211,113	107,357
Less than Twelve Months, Unrealized Losses	-1,178	-563
More than Twelve Months, Fair Value	177,774	276,580
More than Twelve Months, Unrealized Losses	-2,626	-5,681
Total, Fair Value	388,887	383,937
Total, Unrealized Losses	-3,804	-6,244
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	4,825	0
Less than Twelve Months, Unrealized Losses	-16	0
More than Twelve Months, Fair Value	66,111	66,194
More than Twelve Months, Unrealized Losses	-12,466	-12,380
Total, Fair Value	70,936	66,194
Total, Unrealized Losses	($12,482)	($12,380)

Investment_Securities_Contract

Investment Securities - Contractual Maturities of Debt Securities Held to Maturity (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]
Due in one year, Amortized Cost	$55,838
Due after one year through five years, Amortized Cost	63,369
Due after five years through ten years, Amortized Cost	330,116
Due after ten years, Amortized Cost	317,218
Residential mortgage-backed securities, Amortized Cost	1,059,278
Held to Maturity, Amortized Cost	1,825,819	1,778,316
Due in one year, Fair Value	55,861
Due after one year through five years, Fair Value	67,976
Due after five years through ten years, Fair Value	352,827
Due after ten years, Fair Value	317,282
Residential mortgage-backed securities, Fair Value	1,074,679
Fair Value	$1,868,625	$1,815,976

Investment_Securities_Amortize1

Investment Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Securities Available for Sale (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$843,044	$889,958
Gross Unrealized Gains	9,521	9,343
Gross Unrealized Losses	-9,047	-12,331
Fair Value	843,518	886,970
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	51,058	51,063
Gross Unrealized Gains	17	2
Gross Unrealized Losses	-602	-1,622
Fair Value	50,473	49,443
U.S. Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	26,721	33,163
Gross Unrealized Gains	712	748
Gross Unrealized Losses	-94	-86
Fair Value	27,339	33,825
Obligations of States and State Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	11,101	11,160
Gross Unrealized Gains	118	0
Gross Unrealized Losses	0	-24
Fair Value	11,219	11,136
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	33,331	33,340
Gross Unrealized Gains	97	127
Gross Unrealized Losses	-440	-552
Fair Value	32,988	32,915
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	44,432	44,500
Gross Unrealized Gains	215	127
Gross Unrealized Losses	-440	-576
Fair Value	44,207	44,051
Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	615,880	643,382
Gross Unrealized Gains	6,081	5,854
Gross Unrealized Losses	-4,246	-4,960
Fair Value	617,715	644,276
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	10,641	23,194
Gross Unrealized Gains	0	296
Gross Unrealized Losses	-2,103	-2,953
Fair Value	8,538	20,537
Corporate and Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	73,241	73,585
Gross Unrealized Gains	1,712	1,645
Gross Unrealized Losses	-451	-1,218
Fair Value	74,502	74,012
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	21,071	21,071
Gross Unrealized Gains	784	671
Gross Unrealized Losses	-1,111	-916
Fair Value	$20,744	$20,826

Investment_Securities_Amortize2

Investment Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Securities Available for Sale Non-Printing (Detail)	Mar. 31, 2015	Dec. 31, 2014
	Security	Security
Schedule of Available-for-sale Securities [Line Items]
Number of pooled trust preferred securities	83	96
Pooled Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of pooled trust preferred securities	2	2

Investment_Securities_Age_of_U1

Investment Securities - Age of Unrealized Losses and Fair Value of Related Securities (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	$119,881	$100,748
Less than Twelve Months, Unrealized Losses	-1,370	-999
More than Twelve Months, Fair Value	283,296	379,752
More than Twelve Months, Unrealized Losses	-7,677	-11,332
Total, Fair Value	403,177	480,500
Total, Unrealized Losses	-9,047	-12,331
U.S. Treasury Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	49,520	0
Less than Twelve Months, Unrealized Losses	-602	0
More than Twelve Months, Fair Value	0	48,504
More than Twelve Months, Unrealized Losses	0	-1,622
Total, Fair Value	49,520	48,504
Total, Unrealized Losses	-602	-1,622
U.S. Government Agency Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Losses	0	0
More than Twelve Months, Fair Value	5,293	5,442
More than Twelve Months, Unrealized Losses	-94	-86
Total, Fair Value	5,293	5,442
Total, Unrealized Losses	-94	-86
Obligations of States and State Agencies [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value		0
Less than Twelve Months, Unrealized Losses		0
More than Twelve Months, Fair Value		11,136
More than Twelve Months, Unrealized Losses		-24
Total, Fair Value		11,136
Total, Unrealized Losses		-24
Municipal Bonds [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	19,072	13,337
Less than Twelve Months, Unrealized Losses	-204	-426
More than Twelve Months, Fair Value	11,044	14,637
More than Twelve Months, Unrealized Losses	-236	-126
Total, Fair Value	30,116	27,974
Total, Unrealized Losses	-440	-552
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	19,072	13,337
Less than Twelve Months, Unrealized Losses	-204	-426
More than Twelve Months, Fair Value	11,044	25,773
More than Twelve Months, Unrealized Losses	-236	-150
Total, Fair Value	30,116	39,110
Total, Unrealized Losses	-440	-576
Residential Mortgage-Backed Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	32,256	57,543
Less than Twelve Months, Unrealized Losses	-518	-121
More than Twelve Months, Fair Value	216,266	244,910
More than Twelve Months, Unrealized Losses	-3,728	-4,839
Total, Fair Value	248,522	302,453
Total, Unrealized Losses	-4,246	-4,960
Trust Preferred Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	0	2,210
Less than Twelve Months, Unrealized Losses	0	-117
More than Twelve Months, Fair Value	8,538	12,085
More than Twelve Months, Unrealized Losses	-2,103	-2,836
Total, Fair Value	8,538	14,295
Total, Unrealized Losses	-2,103	-2,953
Corporate and Other Debt Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	18,987	27,500
Less than Twelve Months, Unrealized Losses	-43	-294
More than Twelve Months, Fair Value	27,622	28,269
More than Twelve Months, Unrealized Losses	-408	-924
Total, Fair Value	46,609	55,769
Total, Unrealized Losses	-451	-1,218
Equity Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Less than Twelve Months, Fair Value	46	158
Less than Twelve Months, Unrealized Losses	-3	-41
More than Twelve Months, Fair Value	14,533	14,769
More than Twelve Months, Unrealized Losses	-1,108	-875
Total, Fair Value	14,579	14,927
Total, Unrealized Losses	($1,111)	($916)

Investment_Securities_Contract1

Investment Securities - Contractual Maturities of Investment Securities Available for Sale (Detail) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Due after one year through five years, Amortized Cost	$65,316
Due after five years through ten years, Amortized Cost	79,110
Due after ten years, Amortized Cost	61,667
Total investment securities available for sale, Amortized Cost	843,044
Due after one year through five years, Fair Value	66,915
Due after five years through ten years, Fair Value	78,201
Due after ten years, Fair Value	59,943
Total investment securities available for sale, Fair Value	843,518
Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities without a single maturity date, Amortized Cost	615,880
Securities without a single maturity date, Fair Value	617,715
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities without a single maturity date, Amortized Cost	21,071
Securities without a single maturity date, Fair Value	$20,744

Investment_Securities_Realized

Investment Securities - Realized Gains and Losses on Sales of Investment Securities (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Gross gains, Sales transactions	$3,274	$0
Gross gains, Maturities and other securities transactions	89	1
Gross losses, Maturities and other securities transactions	0	-9
Gains (losses) on Maturities and other securities transactions, net	89	-8
Total gains on securities transactions, net	2,416	-8
Loss on Sale of Investments	-947	0
Gain (Loss) on Sale of Investments	$2,327	$0

Investment_Securities_Changes_

Investment Securities - Changes in Credit Loss Component of Cumulative Other-than-Temporary Impairment Losses on Debt Securities (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Balance, beginning of period	$8,947	$9,990
Reductions: Accretion of credit loss impairment due to an increase in expected cash flows	-144	-198
Balance, end of period	$6,421	$9,792

Loans_Schedule_of_Loan_Portfol

Loans - Schedule of Loan Portfolio Non-Covered and Covered PCI Loans and Non-PCI Loans (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	$13,550,735	$13,262,022
Covered loans	183,726	211,891
Total loans	13,734,461	13,473,913
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	6,635,954	6,562,153
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,967,012	1,946,896
Covered loans	3,624	5,519
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	2,361,987	2,237,298
Covered loans	5,940	13,813
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	6,097,017	6,032,190
Covered loans	108,856	128,691
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	538,937	529,963
Covered loans	3,077	3,171
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	2,585,782	2,515,675
Covered loans	62,229	60,697
Home Equity [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	482,265	491,745
Automobile [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,162,963	1,144,831
Other Consumer [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	321,784	310,320
Non-PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	12,085,279	11,752,112
Covered loans	0
Total loans	12,085,279	11,752,112
Non-PCI Loans [Member] | Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	5,626,271	5,529,836
Non-PCI Loans [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,868,907	1,843,305
Non-PCI Loans [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	2,094,274	1,959,927
Non-PCI Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	5,142,588	5,053,742
Non-PCI Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	483,683	476,094
Non-PCI Loans [Member] | Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	2,495,827	2,419,044
Non-PCI Loans [Member] | Home Equity [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	394,886	400,136
Non-PCI Loans [Member] | Automobile [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,162,919	1,144,780
Non-PCI Loans [Member] | Other Consumer [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	311,102	298,389
PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,465,456	1,509,910
Covered loans	183,726	211,891
Total loans	1,649,182	1,721,801
PCI Loans [Member] | Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,009,683	1,032,317
PCI Loans [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	98,105	103,591
Covered loans	3,624	5,519
PCI Loans [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	267,713	277,371
Covered loans	5,940	13,813
PCI Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	954,429	978,448
Covered loans	108,856	128,691
PCI Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	55,254	53,869
Covered loans	3,077	3,171
PCI Loans [Member] | Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	89,955	96,631
Covered loans	62,229	60,697
PCI Loans [Member] | Home Equity [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	87,379	91,609
PCI Loans [Member] | Automobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	44	51
PCI Loans [Member] | Other Consumer [Member] | Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	$10,682	$11,931

Loans_Additional_Information_D

Loans - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Repossessed Assets	$21,800,000
Non-covered loans net of unearned discount and deferred loan fees	9,200,000		9,000,000
Non-covered loans	13,550,735,000		13,262,022,000
Sales of loans	0	0
Non-interest income, increase (decrease)	3,900,000	76,000
Reimbursable portion of valuation write-downs on certain covered OREO properties	-355,000	1,256,000
Combined loan-to-value ratio home equity loan	75.00%
TDRs not reported as non-accrual loans	100,500,000		97,700,000
Non-performing TDRs	18,800,000		19,400,000
Specific reserves for loan losses	800,000	2,100,000
Partial loan charge-offs related to loans modified as TDRs		900,000
Number of days loans placed on non-accrual status	90 days
Contributions to qualified plan	0
Foreclosed Assets Measured At Fair Value	2,400,000
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unsecured loans	358,900,000		345,100,000
Commercial Portfolio Segment [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans	250,000
PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding contractual principal balances	214,900,000		253,700,000
Non-covered loans	1,600,000,000		1,600,000,000
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans	1,967,012,000		1,946,896,000
Unsecured loans	30,300,000		31,400,000
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unsecured loans	7,000,000		7,600,000
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Repossessed Assets	6,700,000
In Formal Foreclosure Proceedings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential mortgage and consumer loans secured by residential real estate properties	$14,400,000

Loans_Changes_in_Accretable_Yi

Loans - Changes in Accretable Yield for Covered Loans (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Receivables [Abstract]
Balance, beginning of period	$336,208	$223,799
Accretion	-26,350	-13,934
Balance, end of period	$309,858	$209,865

Loans_Changes_in_FDIC_LossShar

Loans - Changes in FDIC Loss-Share Receivable (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Receivables [Abstract]
Balance, beginning of the period	$13,848	$32,757
Discount accretion of the present value at the acquisition dates	43	11
Effect of additional cash flows on covered loans (prospective recognition)	-4,072	-1,856
Other reimbursable expenses	98	513
Reimbursements from the FDIC	-1,954	-1,424
Other	-355	1,256
Balance, end of the period	$7,608	$31,257

Loans_Past_Due_NonAccrual_and_

Loans - Past Due, Non-Accrual and Current Non-Covered Loans by Loan Portfolio Class (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$97,159	$86,987
Accruing Loans 90 Days Or More Past Due	3,826	5,478
Non-Accrual Loans	57,544	55,757
Current Non-PCI Loans	11,988,120	11,665,125
Past Due Non Accrual And Current Non Pci Loans	12,085,279	11,752,112
Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	46,021	40,857
Accruing Loans 90 Days Or More Past Due	2,792	4,037
Non-Accrual Loans	29,994	27,321
Current Non-PCI Loans	5,580,250	5,488,979
Past Due Non Accrual And Current Non Pci Loans	5,626,271	5,529,836
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	6,112	6,107
Accruing Loans 90 Days Or More Past Due	262	152
Non-Accrual Loans	2,138	2,209
Current Non-PCI Loans	1,862,795	1,837,198
Past Due Non Accrual And Current Non Pci Loans	1,868,907	1,843,305
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	13,055	11,425
Accruing Loans 90 Days Or More Past Due	208	226
Non-Accrual Loans	8,285	8,467
Current Non-PCI Loans	2,081,219	1,948,502
Past Due Non Accrual And Current Non Pci Loans	2,094,274	1,959,927
Commercial Portfolio Segment [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	34,300	31,198
Accruing Loans 90 Days Or More Past Due	2,792	49
Non-Accrual Loans	24,850	22,098
Current Non-PCI Loans	5,108,288	5,022,544
Past Due Non Accrual And Current Non Pci Loans	5,142,588	5,053,742
Construction [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	11,721	9,659
Accruing Loans 90 Days Or More Past Due	0	3,988
Non-Accrual Loans	5,144	5,223
Current Non-PCI Loans	471,962	466,435
Past Due Non Accrual And Current Non Pci Loans	483,683	476,094
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	31,971	28,598
Accruing Loans 90 Days Or More Past Due	564	1,063
Non-Accrual Loans	17,127	17,760
Current Non-PCI Loans	2,463,856	2,390,446
Past Due Non Accrual And Current Non Pci Loans	2,495,827	2,419,044
Home Equity [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3,592	3,065
Accruing Loans 90 Days Or More Past Due	0	0
Non-Accrual Loans	2,042	2,022
Current Non-PCI Loans	391,294	397,071
Past Due Non Accrual And Current Non Pci Loans	394,886	400,136
Automobile [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,260	2,509
Accruing Loans 90 Days Or More Past Due	251	126
Non-Accrual Loans	0	90
Current Non-PCI Loans	1,160,659	1,142,271
Past Due Non Accrual And Current Non Pci Loans	1,162,919	1,144,780
Other Consumer [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	260	533
Accruing Loans 90 Days Or More Past Due	11	26
Non-Accrual Loans	96	97
Current Non-PCI Loans	310,842	297,856
Past Due Non Accrual And Current Non Pci Loans	311,102	298,389
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	31,197	20,198
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	11,352	9,386
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,875	2,982
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	4,472	1,630
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	4,775	8,938
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	6,577	448
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	12,498	6,200
Financing Receivables, 30 to 59 Days Past Due [Member] | Home Equity [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,170	761
Financing Receivables, 30 to 59 Days Past Due [Member] | Automobile [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,594	1,902
Financing Receivables, 30 to 59 Days Past Due [Member] | Other Consumer [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	111	319
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	4,592	5,554
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,883	113
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	837	764
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	90	1,102
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,883	113
Financing Receivables, 60 to 89 Days Past Due [Member] | Construction [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,782	3,575
Financing Receivables, 60 to 89 Days Past Due [Member] | Home Equity [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	380	282
Financing Receivables, 60 to 89 Days Past Due [Member] | Automobile [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	415	391
Financing Receivables, 60 to 89 Days Past Due [Member] | Other Consumer [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$42	$91

Loans_Impaired_Loans_Detail

Loans - Impaired Loans (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	$59,431	$57,609
Recorded Investment With Related Allowance	91,781	87,399
Total Recorded Investment	151,212	145,008
Unpaid Contractual Principal Balance	165,884	158,936
Related Allowance	12,946	12,525
Commercial Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	46,053	44,286
Recorded Investment With Related Allowance	50,665	47,012
Total Recorded Investment	96,718	91,298
Unpaid Contractual Principal Balance	103,893	97,701
Related Allowance	5,926	5,502
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	324	235
Recorded Investment With Related Allowance	4,197	2,911
Total Recorded Investment	4,521	3,146
Unpaid Contractual Principal Balance	4,622	3,247
Related Allowance		465
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	6,214	6,579
Recorded Investment With Related Allowance	21,665	21,645
Total Recorded Investment		28,224
Unpaid Contractual Principal Balance	33,471	33,677
Related Allowance		4,929
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	32,856	29,784
Recorded Investment With Related Allowance	47,703	44,713
Total Recorded Investment	80,559	74,497
Unpaid Contractual Principal Balance	83,068	77,007
Related Allowance	4,918	5,342
Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	13,197	14,502
Recorded Investment With Related Allowance	2,962	2,299
Total Recorded Investment	16,159	16,801
Unpaid Contractual Principal Balance	20,825	20,694
Related Allowance	1,008	160
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	6,840	6,509
Recorded Investment With Related Allowance	15,254	15,831
Total Recorded Investment		22,340
Unpaid Contractual Principal Balance	23,898	24,311
Related Allowance	1,432	1,629
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	324	235
Recorded Investment With Related Allowance	4,197	2,911
Total Recorded Investment		3,146
Unpaid Contractual Principal Balance	4,622	3,247
Related Allowance	764	465
Loans [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	151,212	145,008
Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment		22,340
Loans [Member] | Commercial and Industrial [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	27,879	28,224
Loans [Member] | Residential Mortgage [Member] | Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	22,094
Loans [Member] | Home Equity [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	4,521	3,146
Allowance for Loan and Lease Losses [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	12,946	12,525
Allowance for Loan and Lease Losses [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Related Allowance	764
Allowance for Loan and Lease Losses [Member] | Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	1,432	1,629
Allowance for Loan and Lease Losses [Member] | Commercial and Industrial [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	4,824	4,929
Related Allowance	4,824
Allowance for Loan and Lease Losses [Member] | Home Equity [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Individually evaluated for impairment	$764	$465

Loans_Average_Recorded_Investm

Loans - Average Recorded Investment and Interest Income Recognized on Impaired Loans (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed Assets Measured At Fair Value	$2,400,000
Average Recorded Investment	148,803,000	192,549,000
Interest Income Recognized	1,162,000	1,431,000
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	95,193,000	117,180,000
Interest Income Recognized	636,000	789,000
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	3,485,000	1,076,000
Interest Income Recognized	30,000	13,000
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	28,282,000	46,784,000
Interest Income Recognized	246,000	369,000
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	78,523,000	97,542,000
Interest Income Recognized	486,000	645,000
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	16,670,000	19,638,000
Interest Income Recognized	150,000	144,000
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	21,843,000	27,509,000
Interest Income Recognized	250,000	260,000
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	3,485,000	1,076,000
Interest Income Recognized	$30,000	$13,000

Loans_PreModification_and_Post

Loans - Pre-Modification and Post-Modification Outstanding Recorded Investments (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	Contract	Contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	8	17
Pre-Modification Outstanding Recorded Investment	$6,864	$30,535
Post-Modification Outstanding Recorded Investment	6,812	28,980
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	6	11
Pre-Modification Outstanding Recorded Investment	1,584	9,762
Post-Modification Outstanding Recorded Investment	1,534	9,093
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	1	5
Pre-Modification Outstanding Recorded Investment	5,000	15,946
Post-Modification Outstanding Recorded Investment	5,000	15,060
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	0	1
Pre-Modification Outstanding Recorded Investment	0	4,827
Post-Modification Outstanding Recorded Investment	0	4,827
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	1	6
Pre-Modification Outstanding Recorded Investment	5,000	20,773
Post-Modification Outstanding Recorded Investment	5,000	19,887
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	1	0
Pre-Modification Outstanding Recorded Investment	280	0
Post-Modification Outstanding Recorded Investment	$278	$0

Loans_Risk_Category_of_Loans_D

Loans - Risk Category of Loans (Detail) (Non-PCI Loans [Member], USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	$7,720,545	$7,489,763
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	2,094,274	1,959,927
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	5,142,588	5,053,742
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	483,683	476,094
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	7,421,053	7,223,802
Pass [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	1,970,835	1,865,472
Pass [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	4,986,138	4,903,185
Pass [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	464,080	455,145
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	111,677	92,608
Special Mention [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	67,846	50,453
Special Mention [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	42,198	40,232
Special Mention [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	1,633	1,923
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	182,199	170,809
Substandard [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	52,448	44,002
Substandard [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	114,252	110,325
Substandard [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	15,499	16,482
Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	5,616	2,544
Doubtful [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	3,145	0
Doubtful [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-PCI Loans	$2,471	$2,544

Loans_Recorded_Investment_in_L

Loans - Recorded Investment in Loan Classes Based on Payment Activity (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Non-PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	$4,364,734	$4,262,349
Non-PCI Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	2,495,827	2,419,044
Non-PCI Loans [Member] | Home Equity [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	394,886	400,136
Non-PCI Loans [Member] | Automobile [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,162,919	1,144,780
Non-PCI Loans [Member] | Other Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	311,102	298,389
PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,649,182	1,721,801
PCI Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	273,653	291,184
PCI Loans [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,063,285	1,107,139
PCI Loans [Member] | Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	58,331	57,040
PCI Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	152,184	157,328
PCI Loans [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	101,729	109,110
Performing Loans [Member] | Non-PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	4,345,469	4,242,380
Performing Loans [Member] | Non-PCI Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	2,478,700	2,401,284
Performing Loans [Member] | Non-PCI Loans [Member] | Home Equity [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	392,844	398,114
Performing Loans [Member] | Non-PCI Loans [Member] | Automobile [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,162,919	1,144,690
Performing Loans [Member] | Non-PCI Loans [Member] | Other Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	311,006	298,292
Performing Loans [Member] | PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,604,262	1,674,088
Performing Loans [Member] | PCI Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	253,446	272,027
Performing Loans [Member] | PCI Loans [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,054,600	1,091,784
Performing Loans [Member] | PCI Loans [Member] | Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	57,204	52,802
Performing Loans [Member] | PCI Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	148,972	153,789
Performing Loans [Member] | PCI Loans [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	90,040	103,686
Non-Performing Loans [Member] | Non-PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	19,265	19,969
Non-Performing Loans [Member] | Non-PCI Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	17,127	17,760
Non-Performing Loans [Member] | Non-PCI Loans [Member] | Home Equity [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	2,042	2,022
Non-Performing Loans [Member] | Non-PCI Loans [Member] | Automobile [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	0	90
Non-Performing Loans [Member] | Non-PCI Loans [Member] | Other Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	96	97
Non-Performing Loans [Member] | PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	44,920	47,713
Non-Performing Loans [Member] | PCI Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	20,207	19,157
Non-Performing Loans [Member] | PCI Loans [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	8,685	15,355
Non-Performing Loans [Member] | PCI Loans [Member] | Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	1,127	4,238
Non-Performing Loans [Member] | PCI Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	3,212	3,539
Non-Performing Loans [Member] | PCI Loans [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	$11,689	$5,424

Allowance_for_Credit_Losses_Su

Allowance for Credit Losses - Summary of Allowance for Credit Losses (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]
Allowance for non-covered loans	$102,431	$102,153
Allowance for covered loans	200	200
Total allowance for loan losses	102,631	102,353	106,709	113,617
Allowance for unfunded letters of credit	1,934	1,934
Total allowance for credit losses	$104,565	$104,287

Allowance_for_Credit_Losses_Su1

Allowance for Credit Losses - Summary of Provision for Credit Losses (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Banking and Thrift, Interest [Abstract]
Provision for non-covered loans	$0	$4,949
Provision for covered loans	0
Total provision for loan losses	0	4,949
Provision for unfunded letters of credit	0	-951
Total provision for credit losses	$0	$3,998

Allowance_for_Credit_Losses_Su2

Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$102,353	$113,617
Loans charged-off	-1,666	-14,239
Charged-off loans recovered	1,944	2,382
Net (charge-offs) recoveries	278	-11,857
Provision for loan losses	0	4,949
Ending balance	102,631	106,709
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	43,676	51,551
Loans charged-off	-753	-8,614
Charged-off loans recovered	1,051	544
Net (charge-offs) recoveries	298	-8,070
Provision for loan losses	919	6,451
Ending balance	44,893	49,932
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	42,840	42,343
Loans charged-off	-150	-4,490
Charged-off loans recovered	460	1,337
Net (charge-offs) recoveries	310	-3,153
Provision for loan losses	-1,494	-808
Ending balance	41,656	38,382
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,093	7,786
Loans charged-off	-49	-63
Charged-off loans recovered	114	79
Net (charge-offs) recoveries	65	16
Provision for loan losses	-1,066	-823
Ending balance	4,092	6,979
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,179	4,359
Loans charged-off	-714	-1,072
Charged-off loans recovered	319	422
Net (charge-offs) recoveries	-395	-650
Provision for loan losses	188	398
Ending balance	4,972	4,107
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,565	7,578
Loans charged-off	0	0
Charged-off loans recovered	0	0
Net (charge-offs) recoveries	0	0
Provision for loan losses	1,453	-269
Ending balance	$7,018	$7,309

Allowance_for_Credit_Losses_Su3

Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses Non-Printing (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans charged-off	$1,666	$14,239
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans charged-off	753	8,614
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans charged-off	$150	$4,490

Allowance_for_Credit_Losses_Su4

Allowance for Credit Losses - Summary of Allocation of Allowance for Loan Losses and Related Loans by Loan Portfolio Segment Disaggregated Based on Impairment Methodology (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$12,946	$12,525
Collectively evaluated for impairment	89,485	89,628
Total	102,631	102,353
Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	151,212	145,008
Collectively evaluated for impairment	11,934,067	11,607,104
Total	13,734,461	13,473,913
Residential Mortgage [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	1,432	1,629
Collectively evaluated for impairment	2,630	3,434
Total	4,092	5,093
Residential Mortgage [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment		22,340
Collectively evaluated for impairment	2,473,733	2,396,704
Total	2,648,011	2,576,372
Unallocated [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	7,018	5,565
Total	7,018	5,565
Unallocated [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Total	0	0
Commercial and Industrial [Member] | Commercial Portfolio Segment [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	4,824	4,929
Collectively evaluated for impairment	39,899	38,577
Total	44,893	43,676
Commercial and Industrial [Member] | Commercial Portfolio Segment [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	27,879	28,224
Collectively evaluated for impairment	2,066,395	1,931,703
Total	2,367,927	2,251,111
Commercial Real Estate [Member] | Commercial Real Estate [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	5,926	5,502
Collectively evaluated for impairment	35,730	37,338
Total	41,656	42,840
Commercial Real Estate [Member] | Commercial Real Estate [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	96,718	91,298
Collectively evaluated for impairment	5,529,553	5,438,538
Total	6,747,887	6,694,015
Residential Mortgage [Member] | Residential Mortgage [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	22,094
Home Equity [Member] | Consumer [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	764	465
Collectively evaluated for impairment	4,208	4,714
Total	4,972	5,179
Home Equity [Member] | Consumer [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	4,521	3,146
Collectively evaluated for impairment	1,864,386	1,840,159
Total	1,970,636	1,952,415
Receivables Acquired with Deteriorated Credit Quality [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	200	200
Receivables Acquired with Deteriorated Credit Quality [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	1,649,182	1,721,801
Receivables Acquired with Deteriorated Credit Quality [Member] | Residential Mortgage [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	30	30
Receivables Acquired with Deteriorated Credit Quality [Member] | Residential Mortgage [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	152,184	157,328
Receivables Acquired with Deteriorated Credit Quality [Member] | Unallocated [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	0	0
Receivables Acquired with Deteriorated Credit Quality [Member] | Unallocated [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	0	0
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial and Industrial [Member] | Commercial Portfolio Segment [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	170	170
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial and Industrial [Member] | Commercial Portfolio Segment [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	273,653	291,184
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Real Estate [Member] | Commercial Real Estate [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	0	0
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Real Estate [Member] | Commercial Real Estate [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	1,121,616	1,164,179
Receivables Acquired with Deteriorated Credit Quality [Member] | Home Equity [Member] | Consumer [Member] | Allowance for Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	0	0
Receivables Acquired with Deteriorated Credit Quality [Member] | Home Equity [Member] | Consumer [Member] | Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with discounts related to credit quality	$101,729	$109,110

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Goodwill	$577,534,000		$575,892,000
Goodwill impairment	0	0
Net recoveries of impairment charges on its loan servicing rights	84,000	100,000
Total amortization expense - other intangible assets	2,400,000	2,400,000
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period, years	11 years
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period, years	18 years
Core Deposits and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of core deposits and intangibles	$0	$0

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets - Carrying Amount of Goodwill (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Goodwill [Roll Forward]
Goodwill, beginning balance	$575,892
Goodwill from business combinations	1,642
Goodwill, ending balance	577,534
Wealth Management [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	20,517
Goodwill from business combinations	0
Goodwill, ending balance	20,517
Consumer Lending [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	168,922
Goodwill from business combinations	450
Goodwill, ending balance	169,372
Commercial Lending [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	252,900
Goodwill from business combinations	869
Goodwill, ending balance	253,769
Investment Management [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	133,553
Goodwill from business combinations	323
Goodwill, ending balance	$133,876

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets - Other Intangible Assets (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2013	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$120,854		$123,439
Accumulated Amortization	-85,154		-84,072
Valuation Allowance	-676	-592
Net Intangible Assets	35,024		38,775
Loan Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	73,096		72,154
Accumulated Amortization	-53,597		-51,708
Valuation Allowance	-676	-592
Net Intangible Assets	18,823		19,854
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	43,384		46,694
Accumulated Amortization	-29,219		-29,916
Valuation Allowance	0	0
Net Intangible Assets	14,165		16,778
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	4,374		4,591
Accumulated Amortization	-2,338		-2,448
Valuation Allowance	0	0
Net Intangible Assets	$2,036		$2,143

Goodwill_and_Other_Intangible_5

Goodwill and Other Intangible Assets - Estimated Future Amortization Expense (Detail) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Loan Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
2014	$4,070
2015	4,220
2016	3,298
2017	2,511
2018	1,838
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
2014	2,446
2015	2,648
2016	2,120
2017	1,767
2018	1,497
Other [Member]
Finite-Lived Intangible Assets [Line Items]
2014	325
2015	233
2016	220
2017	193
2018	$181

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$2,479,000	$2,178,000
Stock-based compensation amortization expense unrecognized	19,600,000
Average remaining vesting, years	4 years
Stock Options and Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights as a percentage	33.33%
Employee Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, awarded during the period	459,000	423,000
Number of shares, available for grant	2,600,000
Employee Stock Incentive Plan [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive stock option's maximum term, years	3 years
Number of shares, awarded during the period	313,000
Average grant date fair value	$9.15
Employee Stock Incentive Plan [Member] | Performance Shares [Member] | Growth in Tangible Book Value per Share Plus Dividends [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights as a percentage	75.00%
Employee Stock Incentive Plan [Member] | Performance Shares [Member] | Total Shareholder Return as Compared to Our Peer Group [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights as a percentage	25.00%
Employee Stock Incentive Plan [Member] | Stock Options and Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$2,500,000	$2,200,000

Guarantees_Additional_Informat

Guarantees - Additional Information (Detail) (USD $)	Mar. 31, 2015
Guarantor Obligations [Line Items]
Guarantor obligations, standby letters of credit	$190,400,000
Liability related to standby letters of credit	623,000
Secured [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, standby letters of credit	$130,600,000
Percent of secured letters of credit	68.60%

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Derivative [Line Items]
Derivative instruments not designated as hedging instruments, liability	$25,000,000
Aggregate fair value of net liability position	13,300,000
Collateral posted with counterparties	40,700,000
Interest Rate Swaps [Member]
Derivative [Line Items]
Accumulated net after-tax losses related to effective cash flow hedges	18,800,000		14,500,000
Estimated amount of interest rate derivatives to be reclassified to interest expense	8,400,000
Recognized a net reduction to interest expense		$100,000

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities - Consolidated Statements of Financial Condition Related to Fair Value of Derivative Financial Instruments (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivatives Designated as Hedging Instruments [Member]
Derivative [Line Items]
Notional Amount, Fair Value	$1,140,358	$1,140,406
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedge Interest Rate Caps and Swaps [Member]
Derivative [Line Items]
Notional Amount, Fair Value	1,007,000	1,007,000
Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedge Interest Rate Swaps [Member]
Derivative [Line Items]
Notional Amount, Fair Value	133,358	133,406
Derivatives Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional Amount, Fair Value	414,352	419,706
Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Notional Amount, Fair Value	393,283	378,849
Derivatives Not Designated as Hedging Instrument [Member] | Mortgage Banking Derivatives [Member]
Derivative [Line Items]
Notional Amount, Fair Value	21,069	40,857
Other Assets [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	10,896	8,486
Other Assets [Member] | Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedge Interest Rate Caps and Swaps [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	1,897	2,229
Other Assets [Member] | Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedge Interest Rate Swaps [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	8,999	6,257
Other Assets [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	18,874	12,501
Other Assets [Member] | Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	18,832	12,464
Other Assets [Member] | Derivatives Not Designated as Hedging Instrument [Member] | Mortgage Banking Derivatives [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	42	37
Other Liabilities [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	28,240	20,784
Other Liabilities [Member] | Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedge Interest Rate Caps and Swaps [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	26,704	19,302
Other Liabilities [Member] | Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedge Interest Rate Swaps [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	1,536	1,482
Other Liabilities [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	18,880	12,546
Other Liabilities [Member] | Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	18,828	12,455
Other Liabilities [Member] | Derivatives Not Designated as Hedging Instrument [Member] | Mortgage Banking Derivatives [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	$52	$91

Derivative_Instruments_and_Hed4

Derivative Instruments and Hedging Activities - Losses Related to Interest Rate Derivatives Designated as Hedges of Cash Flows (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items]
Amount of loss reclassified from accumulated other comprehensive loss to interest expense	($38,899)	($39,014)
Amount of loss recognized in other comprehensive income	-8,911	-6,298
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items]
Amount of loss reclassified from accumulated other comprehensive loss to interest expense	($1,629)	($1,648)

Derivative_Instruments_and_Hed5

Derivative Instruments and Hedging Activities - Gains (Losses) Related to Interest Rate Derivatives Designated as Hedges of Fair Value (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Interest income	$150,482	$131,079
Interest expense	38,899	39,014
Designated as Fair Value Hedge [Member] | Derivatives Designated as Hedging Instruments [Member]
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Interest income	54	23
Interest expense	-2,781	3,144
Interest Rate Swaps [Member] | Designated as Fair Value Hedge [Member]
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Interest income	-54	-23
Interest expense	$2,741	($3,175)

Derivative_Instruments_and_Hed6

Derivative Instruments and Hedging Activities - (Losses) Gains Related to Derivative Instruments Not Designated as Hedging Instruments (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Non-designated hedge interest rate derivatives
Other non-interest expense	$38	($173)

Balance_Sheet_Offsetting_Gross

Balance Sheet Offsetting - Gross Presentation Effects of Offsetting and Net Presentation of Valley's Financial Instruments (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivatives And Hedging Activities [Line Items]
Gross Amounts Recognized, Total	$442,068	$428,239
Gross Amounts Offset, Total	0	0
Net Amounts Presented, Total	442,068	428,239
Net Amount, Total	0	0
Interest Rate Caps and Swaps, Assets [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Recognized, Assets	29,728	20,950
Gross Amounts Offset, Assets	0	0
Net Amounts Presented, Assets	29,728	20,950
Gross Amounts Not Offset, Assets	18,869	12,446
Interest Rate Caps and Swaps, Liabilities [Member]
Derivatives And Hedging Activities [Line Items]
Net Amount, Total	0	0
Gross Amounts Recognized, Liabilities	47,068	33,239
Gross Amounts Offset, Liabilities	0	0
Net Amounts Presented, Liabilities	47,068	33,239
Repurchase Agreements [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Recognized, Liabilities	395,000	395,000
Gross Amounts Offset, Liabilities	0	0
Net Amounts Presented, Liabilities	395,000	395,000
Net Amount, Liabilities	0	0
Financial Instruments [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Total	-10,859	-8,504
Financial Instruments [Member] | Interest Rate Caps and Swaps, Assets [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Assets	-10,859	-8,504
Financial Instruments [Member] | Interest Rate Caps and Swaps, Liabilities [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Liabilities	-10,859	-8,504
Cash Collateral [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Total	431,209	419,735
Cash Collateral [Member] | Interest Rate Caps and Swaps, Assets [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Assets	0
Cash Collateral [Member] | Interest Rate Caps and Swaps, Liabilities [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Liabilities	-36,209	-24,735
Cash Collateral [Member] | Repurchase Agreements [Member]
Derivatives And Hedging Activities [Line Items]
Gross Amounts Not Offset, Liabilities	($395,000)	($395,000)

Tax_Credit_Investments_Tax_Cre

Tax Credit Investments Tax Credit Investments - Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Affordable housing tax credits and other tax benefits	$1,731	$1,393
Other tax credit investment credits and tax benefits	3,618	3,188
Total reduction in income tax expense	5,349	4,581
Other Assets [Member]
Other Assets [Abstract]
Affordable housing tax credit investments, net	34,843		36,009
Other tax credit investments, net	62,693		66,023
Total tax credit investments, net	97,536		102,032
Accrued Expenses And Other Liabilities [Member]
Other Liabilities [Abstract]
Unfunded affordable housing tax credit commitments	8,080		8,800
Unfunded other tax credit commitments	418		418
Total unfunded tax credit commitments	$8,498		$9,218

Tax_Credit_Investments_Tax_Cre1

Tax Credit Investments Tax Credit Investments - Affordable Housing Tax Credit Investments and Other Tax Credit Investments (Details 2) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of Equity Method Investments [Line Items]
Affordable housing tax credits and other tax benefits	$1,731	$1,393
Other tax credit investment credits and tax benefits	3,618	3,188
Total reduction in income tax expense	5,349	4,581
Non-Interest Expenses [Member]
Schedule of Equity Method Investments [Line Items]
Affordable housing tax credit investment losses	677	440
Affordable housing tax credit investment impairment losses	488	0
Other tax credit investment losses	-297	-398
Other tax credit investment impairment losses	-3,034	-2,878
Total amortization of tax credit investments recorded in non-interest expense	$4,496	$3,716