Northwest Bancshares (NWBI) 10-K28 Feb 142013 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013	Feb. 14, 2013
Document and Entity Information	'	'	'
Entity Registrant Name	'Northwest Bancshares, Inc.	'	'
Entity Central Index Key	'0001471265	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Amendment Flag	'false	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Public Float	'	$1,268	'
Entity Common Stock, Shares Outstanding	'	'	94,395,060
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'

CONSOLIDATED_STATEMENTS_OF_FIN

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets	'	'
Cash and due from banks	$98,122	$88,277
Interest-earning deposits in other financial institutions	293,149	362,794
Federal funds sold and other short-term investments	634	633
Marketable securities available-for-sale (amortized cost of $1,022,078 and $1,053,122)	1,016,767	1,079,074
Marketable securities held-to-maturity (fair value of $124,061 and $161,969)	121,366	155,081
Loans receivable, net of allowance for loan losses of $71,348 and $73,219	5,734,943	5,629,261
Accrued interest receivable	21,821	23,313
Real estate owned, net	18,203	26,165
Federal Home Loan Bank stock, at cost	43,715	46,834
Premises and equipment, net	146,139	138,824
Bank owned life insurance	140,172	137,044
Goodwill	174,463	174,461
Other intangible assets	2,319	3,529
Other assets	69,663	77,310
Total assets	7,881,476	7,942,600
Liabilities:	'	'
Deposits	5,668,879	5,764,600
Borrowed funds	881,645	860,047
Advances by borrowers for taxes and insurance	26,669	23,325
Accrued interest payable	888	888
Other liabilities	43,499	62,177
Junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities	103,094	103,094
Total liabilities	6,724,674	6,814,131
Shareholders' equity:	'	'
Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued	'	'
Common stock, $0.01 par value: 500,000,000 shares authorized, 94,243,713 and 93,652,960 shares issued, respectively	943	937
Paid-in capital	619,678	613,249
Retained earnings	571,164	550,296
Unallocated common stock of employee stock ownership plan	-23,083	-24,525
Accumulated other comprehensive loss	-11,900	-11,488
Total shareholders' equity	1,156,802	1,128,469
Total liabilities and shareholders' equity	$7,881,476	$7,942,600

CONSOLIDATED_STATEMENTS_OF_FIN1

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION	'	'
Marketable securities available-for-sale, amortized cost (in dollars)	$1,022,078	$1,053,122
Marketable securities held-to-maturity, fair value (in dollars)	124,061	161,969
Allowance for loan losses (in dollars)	$71,348	$73,219
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	94,243,713	93,652,960

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest income:	'	'	'
Loans receivable	$287,289	$308,254	$320,100
Mortgage-backed securities	12,818	16,738	23,450
Taxable investment securities	4,021	2,328	2,452
Tax-free investment securities	7,817	9,119	11,514
Interest-earning deposits	1,093	1,599	1,712
Total interest income	313,038	338,038	359,228
Interest expense:	'	'	'
Deposits	29,279	43,377	60,721
Borrowed funds	31,883	31,822	32,080
Total interest expense	61,162	75,199	92,801
Net interest income	251,876	262,839	266,427
Provision for loan losses	18,519	26,338	34,170
Net interest income after provision for loan losses	233,357	236,501	232,257
Noninterest income:	'	'	'
Impairment losses on securities	-713	-996	-2,081
Noncredit related losses on securities not expected to be sold (recognized in other comprehensive income)	'	665	1,144
Net impairment losses	-713	-331	-937
Gain on sale of investments, net	6,118	654	358
Service charges and fees	35,884	35,623	36,220
Trust and other financial services income	9,330	8,544	8,125
Insurance commission income	8,635	6,264	6,548
Loss on real estate owned, net	-3,186	-5,643	-2,426
Income from bank owned life insurance	5,197	4,961	6,019
Mortgage banking income	1,623	4,678	858
Other operating income	3,959	4,154	4,213
Total noninterest income	66,847	58,904	58,978
Noninterest expense:	'	'	'
Compensation and employee benefits	112,190	111,727	106,595
Premises and occupancy costs	23,182	22,409	23,055
Office operations	14,454	13,224	12,850
Processing expenses	25,548	25,000	23,332
Professional services	6,267	7,005	5,224
Amortization of other intangible assets	1,210	1,012	1,819
Marketing expenses	6,284	7,829	9,953
Real estate owned expense	2,437	2,620	1,625
Federal deposit insurance premiums	5,600	5,554	7,101
Other expenses	9,962	9,097	8,673
Total noninterest expense	207,134	205,477	200,227
Income before income taxes	93,070	89,928	91,008
Provision for income taxes:	'	'	'
Federal	23,276	22,484	22,623
State	3,055	3,884	4,234
Total provision for income taxes	26,331	26,368	26,857
Net income	$66,739	$63,560	$64,151
Basic earnings per share (in dollars per share)	$0.74	$0.68	$0.64
Diluted earnings per share (in dollars per share)	$0.73	$0.68	$0.64

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'
Net Income	$66,739	$63,560	$64,151
Net unrealized holding gains on marketable securities:	'	'	'
Unrealized holding (losses)/ gains, net of tax of $10,551, $(1,346) and $(5,996), respectively	-16,544	2,029	9,312
Other-than-temporary impairment on securities included in net income, net of tax of $(278), $(129) and $(328), respectively	435	202	609
Reclassification adjustment for (gains)/ losses included in net income, net of tax of $1,904, $271 and $(705), respectively	-2,977	-424	1,104
Net unrealized holding (losses)/ gains on marketable securities	-19,086	1,807	11,025
Change in fair value of interest rate swaps, net of tax of $(1,714), $(246) and $1,506, respectively	3,181	459	-2,787
Defined benefit plans:	'	'	'
Net gain/ (loss), net of tax of $(10,716), $(6,112) and $11,431, respectively	17,002	9,576	-17,863
Amortization of prior service costs, net of tax of $812, $56 and $56, respectively	-1,509	-104	-104
Net gains/ (loss) on defined benefit plans	15,493	9,472	-17,967
Other comprehensive (loss)/ income	-412	11,738	-9,729
Total comprehensive income	$66,327	$75,298	$54,422

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'
Unrealized holding gains/ (loss), tax	$10,551	($1,346)	($5,996)
Other-than-temporary impairment on securities included in net income, tax	-278	-129	-328
Reclassification adjustment for (gains)/ losses included in net income, tax	1,904	271	-705
Change in fair value of interest rate swaps, tax	-1,714	-246	1,506
Net gain/ (loss), tax	-10,716	-6,112	11,431
Amortization of prior service costs, tax	$812	$56	$56

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/ (Loss)	Unallocated Common Stock of ESOP
In Thousands, unless otherwise specified	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/ (Loss)	Unallocated Common Stock of ESOP
Balance at Dec. 31, 2010	$1,307,450	$1,103	$824,164	$523,089	($13,497)	($27,409)
Comprehensive income:	'	'	'	'	'	'
Net income	64,151	'	'	64,151	'	'
Other comprehensive loss, net of tax of $559, $(7,506) and $5,964 for the year ended December, 31 2013, 2012 and 2011, respectively	-9,729	'	'	'	-9,729	'
Total comprehensive income	54,422	'	'	64,151	-9,729	'
Exercise of stock options	2,030	3	2,027	'	'	'
Share repurchases	-172,690	-144	-172,546	'	'	'
Stock-based compensation expense including tax benefits of $635, $403 and $610 for the year ended December, 31 2013, 2012 and 2011, respectively	7,334	13	5,878	'	'	1,443
Dividends paid ($0.50, $0.60, $0.43 per share for the year ended December, 31 2013, 2012 and 2011, respectively)	-43,642	'	'	-43,642	'	'
Balance at Dec. 31, 2011	1,154,904	975	659,523	543,598	-23,226	-25,966
Comprehensive income:	'	'	'	'	'	'
Net income	63,560	'	'	63,560	'	'
Other comprehensive loss, net of tax of $559, $(7,506) and $5,964 for the year ended December, 31 2013, 2012 and 2011, respectively	11,738	'	'	'	11,738	'
Total comprehensive income	75,298	'	'	63,560	11,738	'
Exercise of stock options	2,131	3	2,128	'	'	'
Share repurchases	-52,028	-44	-51,984	'	'	'
Stock-based compensation expense including tax benefits of $635, $403 and $610 for the year ended December, 31 2013, 2012 and 2011, respectively	5,026	3	3,582	'	'	1,441
Dividends paid ($0.50, $0.60, $0.43 per share for the year ended December, 31 2013, 2012 and 2011, respectively)	-56,862	'	'	-56,862	'	'
Balance at Dec. 31, 2012	1,128,469	937	613,249	550,296	-11,488	-24,525
Comprehensive income:	'	'	'	'	'	'
Net income	66,739	'	'	66,739	'	'
Other comprehensive loss, net of tax of $559, $(7,506) and $5,964 for the year ended December, 31 2013, 2012 and 2011, respectively	-412	'	'	'	-412	'
Total comprehensive income	66,327	'	'	66,739	-412	'
Exercise of stock options	6,618	7	6,611	'	'	'
Share repurchases	-4,459	-4	-4,455	'	'	'
Stock-based compensation expense including tax benefits of $635, $403 and $610 for the year ended December, 31 2013, 2012 and 2011, respectively	5,718	3	4,273	'	'	1,442
Dividends paid ($0.50, $0.60, $0.43 per share for the year ended December, 31 2013, 2012 and 2011, respectively)	-45,871	'	'	-45,871	'	'
Balance at Dec. 31, 2013	$1,156,802	$943	$619,678	$571,164	($11,900)	($23,083)

CONSOLIDATED_STATEMENTS_OF_CHA1

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY	'	'	'
Other comprehensive income (loss), tax (in dollars)	($1,417)	($7,506)	$5,964
Stock-based compensation expense, tax benefits (in dollars)	$635	$403	$610
Dividends paid, per share (in dollars per share)	$0.50	$0.60	$0.43

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:	'	'	'
Net Income	$66,739	$63,560	$64,151
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Provision for loan losses	18,519	26,338	34,170
Net (gain)/ loss on sale of assets	-6,061	-2,894	2,999
Net depreciation, amortization and accretion	8,952	9,466	7,790
Decrease in other assets	12,351	18,695	7,534
Increase/(decrease) in other liabilities	2,890	11,351	-24,967
Net amortization/ (accretion) of premium on marketable securities	298	-76	-186
Noncash compensation expense related to stock benefit plans	5,083	4,623	6,725
Noncash impairment losses on investment securities	713	331	937
Noncash impairment of real estate owned	4,158	4,942	1,449
Deferred income tax expense	1,423	3,295	7,749
Origination of loans held for sale	-36,773	-248,658	-77,887
Proceeds from sale of loans held for sale	52,550	236,482	88,238
Net cash provided by operating activities	130,842	127,455	118,702
Investing activities:	'	'	'
Purchase of marketable securities available-for-sale	-234,965	-508,553	-237,058
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	33,764	76,257	126,012
Proceeds from maturities and principal reductions of marketable securities available-for-sale	255,064	341,287	297,348
Proceeds from sale of marketable securities available-for-sale	16,003	'	'
Loan originations	-2,072,797	-2,088,565	-1,850,368
Proceeds from loan maturities and principal reductions	1,924,179	1,911,871	1,766,191
Redemptions of Federal Home Loan Bank stock	3,119	2,101	11,145
Proceeds from sale of real estate owned	18,036	14,049	10,648
Sale/ (purchase) of real estate owned for investment, net	814	457	-22
Purchase of premises and equipment	-19,367	-18,255	-12,434
Acquisitions, net of cash received	'	-4,089	'
Net cash (used in)/ provided by investing activities	-76,150	-273,440	111,462
Financing activities:	'	'	'
(Decrease)/ increase in deposits, net	-95,721	-15,725	15,989
Proceeds from long-term borrowings	30,000	'	'
Repayments of long-term borrowings	-68	-69	-50,066
Net increase/ (decrease) in short-term borrowings	-8,334	32,191	-13,302
Increase/ (decrease) in advances by borrowers for taxes and insurance	3,344	-246	703
Share repurchases	-4,459	-52,028	-172,690
Cash dividends paid on common stock	-45,871	-56,862	-43,642
Proceeds from stock options exercised	6,618	2,131	2,030
Net cash used in by financing activities	-114,491	-90,608	-260,978
Net decrease in cash and cash equivalents	-59,799	-236,593	-30,814
Cash and cash equivalents at beginning of period	451,704	688,297	719,111
Net decrease in cash and cash equivalents	-59,799	-236,593	-30,814
Cash and cash equivalents at end of period	391,905	451,704	688,297
Cash and cash equivalents:	'	'	'
Cash and due from banks	98,122	88,277	94,276
Interest-earning deposits in other financial institutions	293,149	362,794	593,388
Federal funds sold and other short-term investments	634	633	633
Total cash and cash equivalents	391,905	451,704	688,297
Cash paid during the period for:	'	'	'
Interest on deposits and borrowings (including interest credited to deposit accounts of $26,329, $37,633 and $51,591, respectively)	61,162	75,415	93,413
Income taxes	22,881	14,278	23,916
Business acquisitions:	'	'	'
Fair value of assets acquired	'	4,152	'
Net cash paid	'	-4,089	'
Liabilities assumed	'	63	'
Loan foreclosures and repossessions	14,529	20,080	20,410
Sale of real estate owned financed by the Company	$943	$461	$379

CONSOLIDATED_STATEMENTS_OF_CAS1

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'	'
Interest on deposits and borrowings, interest credited to deposit accounts	$26,329	$37,633	$51,591

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2013
Summary of Significant Accounting Policies	'
Summary of Significant Accounting Policies	'
	(1) Summary of Significant Accounting Policies

	(a) *Nature of Operations*

	Northwest Bancshares, Inc. (Company) is a Maryland corporation that was incorporated in September 2009 to be the successor to Northwest Bancorp, Inc. upon completion of the mutual-to-stock conversion of Northwest Bancorp, MHC, Northwest Bancorp, Inc’s mutual holding company parent. Northwest Bancshares, Inc., headquartered in Warren, Pennsylvania, is a federal savings and loan holding company for its wholly owned subsidiary, Northwest Savings Bank. Northwest Savings Bank, a Pennsylvania chartered savings bank, offers personal and business deposit and loan products as well as investment management and insurance services through its 165 banking locations in Pennsylvania, New York, Ohio and Maryland. Northwest Savings Bank, through its subsidiary Northwest Consumer Discount Company, also offers personal loan products through 50 consumer finance offices in Pennsylvania.

	(b) *Principles of Consolidation*

	The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries after elimination of all intercompany accounts and transactions.

	(c) *Cash and Cash Equivalents*

	For purposes of the statement of cash flows, cash and cash equivalents include cash and amounts due from depository institutions, interest-bearing deposits in other financial institutions, federal funds sold, and other short-term investments with original maturities of three months or less.

	(d) *Investment Securities*

	We classify marketable securities at the time of purchase as held-to-maturity, available-for-sale, or trading securities. Securities for which management has the intent and we have the ability to hold until their maturity are classified as held-to-maturity and are carried at cost, adjusted for amortization of premiums and accretion of discounts on a level yield basis (amortized cost). If it is management’s intent at the time of purchase to hold securities for an indefinite period of time and/or to use such securities as part of its asset/liability management strategy, the securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported as accumulated other comprehensive income/ (loss), a separate component of shareholders’ equity, net of tax. Securities classified as available-for-sale include securities that may be sold in response to changes in interest rates, resultant prepayment risk, or other market factors. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading and are reported at fair value, with changes in fair value included in earnings. The cost of securities sold is determined on a specific identification basis. We held no securities classified as trading at or for the years ended December 31, 2013 and 2012.

	On at least a quarterly basis, we review our investments that are in an unrealized loss position for other-than-temporary impairment (“OTTI”). An investment security is deemed impaired if the fair value of the investment is less than its amortized cost. If an investment security is determined to be impaired, we evaluate whether the decline in value is other-than-temporary. We also consider whether or not we expect to receive all of the contractual cash flows from the investment security based on factors that include, but are not limited to: the credit worthiness of the issuer and the historical and projected performance of the underlying collateral. Also, we may evaluate the business and financial outlook of the issuer, as well as broader economic performance indicators. We consider our intent to sell the investment securities and the likelihood that we will not have to sell the investment securities before recovery of their cost basis during our evaluation. Declines in fair value of investment securities that are deemed credit related are recognized in earnings while declines in fair value of investment securities deemed noncredit related are recorded in accumulated other comprehensive income, if we do not intend to sell and it is not likely we will be required to sell. If we intend to sell the security or if it’s more likely than not that we will be required to sell the security the entire unrealized loss is recorded in earnings.

	Federal law requires a member institution of the Federal Home Loan Bank (FHLB) system to hold stock of its district FHLB according to a predetermined formula. This stock is recorded at cost. Quarterly, we evaluate our investment in the FHLB of Pittsburgh for impairment. We evaluate recent and long-term operating performance, liquidity, funding and capital positions, stock repurchase history, dividend history and impact of legislative and regulatory changes. Based on our most recent evaluation, we have determined that no impairment write-downs are currently required.

	(e) *Loans Receivable*

	Our loan portfolio segments consist of Personal Banking loans and Business Banking loans. Personal Banking loans include the following classes: residential mortgage loans, home equity loans and other consumer loans. Business Banking loans include the following classes: commercial real estate loans and commercial loans. All classes of loans are carried at their unpaid principal balance net of any deferred origination fees or costs and the allowance for estimated loan losses. Interest income on loans is credited to income as earned. Interest earned on loans for which no payments were received during the month is accrued at month end. Accrued interest on loans more than 90 days delinquent is reversed, and such loans are placed on nonaccrual.

	All classes of loans are placed on nonaccrual when principal or interest is 90 days or more delinquent, or when there is reasonable doubt that interest or principal will not be collected in accordance with the contractual terms. Interest receipts on all classes of nonaccrual and impaired loans are recognized as interest revenue when it has been determined that all principal and interest will be collected or are applied to principal when collectability of principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and a period of performance has been established in accordance with the contractual terms, typically six months.

	A loan (from any class) is considered to be a troubled debt restructured loan (TDR) when the restructuring constitutes a concession and the borrower is experiencing financial difficulties. TDRs may include certain modifications of terms of loans, receipts of assets from borrowers in partial or full satisfaction of loans, or a combination thereof. TDRs are included in impaired loans until returned to performing status through the fulfillment of contractual terms for a reasonable period of time (generally six months). A modified loan is determined to be a TDR based on the contractual terms as specified by the original loan agreement or the most recent modification. Once classified a TDR, a loan is removed from such classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off, or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk.

	For all classes of loans, delinquency is measured based on the number of days since the payment due date. For all classes of loans, past due status is measured using the loan’s contractual maturity date.

	Loan fees and certain direct loan origination costs are deferred, and the net deferred fee or cost is then recognized using the level-yield method over the contractual life of the loan as an adjustment to interest income.

	We have identified certain residential mortgage loans, which will be sold prior to maturity, as loans held for sale. These loans are recorded at the lower of amortized cost or fair value less estimated cost to sell and at December 31, 2013 and 2012 were $221,000 and $15.4 million, respectively.

	(f) *Allowance for Loan Losses and Provision for Loan Losses*

	Provisions for estimated loan losses and the amount of the allowance for loan losses are based on losses inherent in the loan portfolio that are both probable and can be reasonably estimated at the date of the financial statements.

	For all classes of loans, we consider a loan to be impaired when it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. In evaluating whether a loan is impaired, we consider not only the amount that we expect to collect but also the timing of collection. Generally, if a delay in payment is insignificant (e.g., less than 30 days), a loan is not deemed to be impaired.

	Business Banking loans greater than or equal to $1.0 million are reviewed to determine if they should be individually evaluated for impairment. Smaller balance, homogeneous loans (e.g., primarily residential mortgage, home equity and consumer loans) are evaluated collectively for impairment. When a loan is considered to be impaired, the amount of impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s market price, or fair value of the collateral, less estimated cost to sell, if the loan is collateral dependent. Impairment losses are included in the allowance for loan losses. Impaired loans are charged-off or charged down when we believe that the ultimate collectability of a loan is not likely or the collateral value no longer supports the carrying value of the loan.

	Interest income on non-performing loans is recognized using the cash basis method. For non-performing loans interest collected is credited to income in the period of recovery or applied to reduce principal if there is sufficient doubt about the collectability of principal.

	The allowance for loan losses is shown as a valuation allowance to loans. The accounting policy for the determination of the adequacy of the allowance by portfolio segment requires us to make numerous complex and subjective estimates and assumptions relating to amounts which are inherently uncertain. The allowance for loan losses is maintained to absorb losses inherent in the loan portfolio as of the balance sheet date. The methodology used to determine the allowance for loan losses is designed to provide procedural discipline in assessing the appropriateness of the allowance for loan losses. Losses are charged against and recoveries are added to the allowance for loan losses.

	For Business Banking loans the allowance for loan losses consists of:

	· An allowance for impaired loans;
	· An allowance for homogenous loans based on historical losses; and
	· An allowance for homogenous loans based on environmental factors.

	The allowance for impaired loans is based on individual analysis of all nonperforming loans greater than or equal to $1.0 million. The allowance is measured by the difference between the recorded value of impaired loans and their impaired value. The impaired value is either the present value of the expected future cash flows from the borrower, the market value of the loan, or the fair value of the collateral, less estimated cost to sell.

	The allowance for homogeneous loans based on historical factors is a rolling three-year average of actual losses incurred, adjusted for a loss realization period (the period of time from the event of loss to loss realization), applied to homogenous pools of loans categorized by similar risk characteristics, not including loans evaluated individually for impairment.

	The allowance for homogeneous loans based on environmental factors augments the historical loss factors for changes in: economic conditions, lending policies and procedures, the nature and volume of the loan portfolio, management, delinquency trends, loan administration, underlying collateral values and concentrations of credit.

	For Personal Banking loans the allowance for loan losses consists of:

	· An allowance for loans 90 days or more delinquent;
· An allowance for homogenous loans based on historical losses; and
· An allowance for homogenous loans based on environmental factors.

The allowance for loans 90 days or more delinquent is based on the loss history of loans that have become 90 days or more delinquent. We apply a historical loss factor to homogeneous pools of loans that are 90 days or more delinquent.

The allowance for homogeneous loans based on historical losses is a rolling three-year average of actual losses incurred, adjusted for a loss realization period (the period of time from the event of loss to loss realization), applied to homogenous pools of loans categorized by similar risk characteristics, not including loans that are 90 days or more delinquent.

The allowance for homogeneous loans based on environmental factors augments the historical loss factors for changes in: economic conditions, lending policies and procedures, the nature and volume of the loan portfolio, management, delinquency trends, loan administration, underlying collateral values and concentrations of credit.

We also have an unallocated allowance which is based on our judgment regarding economic conditions, collateral values, specific loans and industry conditions.

The allocation of the allowance for loan losses is inherently judgmental, and the entire allowance for loan losses is available to absorb loan losses regardless of the nature of the loss.

Personal Banking loans are charged-off or charged down when they become 180 days delinquent, unless the borrower has filed for bankruptcy. Business Banking loans are charged-off or charged down when, in our opinion, they are no longer collectible, or when it has been determined that the collateral value no longer supports the carrying value of the loan, for loans that are collateral dependent.

We have not made any material changes to our methodology for the calculation of the allowance for loan losses during the current year.

(g) *Real Estate Owned*

Real estate owned is comprised of property either acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the loan balance or fair value of the collateral, less estimated disposition costs, with the fair value being determined by an appraisal. Any initial write-down is charged to the allowance for loan losses. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or the current fair value, less estimated disposition costs. Any subsequent write-down or gains or losses realized from the disposition of such property are credited or charged to noninterest income.

(h) *Premises and Equipment*

Premises and equipment are carried at cost less accumulated depreciation and amortization. Depreciation is accumulated on a straight-line basis over the estimated useful lives of the related assets. Estimated lives range from three to 39 years. Amortization of leasehold improvements is accumulated on a straight-line basis over the terms of the related leases or the useful lives of the related assets, whichever is shorter.

(i) *Goodwill*

Goodwill is generated from the premium paid for an acquisition and is allocated to reporting units, which are either the Company’s reportable segments or one level below. Goodwill is not subject to amortization but is tested for impairment at least annually and possibly more frequently if certain events occur or changes in circumstances arise. Impairment testing requires that the fair value of each reporting unit be compared to its carrying amount, including goodwill. Reporting units are identified based upon analyzing each individual operating segment. A reporting unit is defined as a distinct, separately identifiable component of an operating segment for which complete, discrete financial information is available that management regularly reviews. Determining the fair value of a reporting unit requires a high degree of subjective management judgment, including developing cash flow projections, selecting appropriate discount rates, identifying relevant market comparables, incorporating general economic and market conditions and selecting an appropriate control premium. The selection and weighting of the various fair value techniques may result in a higher or lower fair value. Judgment is applied in determining the weightings that are most representative of fair value. We conduct our annual goodwill impairment assessment as of June 30th. Through the assistance of an external third party, we performed an impairment test on goodwill. We valued each reporting unit by using a weighted average of four valuation methodologies; comparable transaction approach, control premium approach, public market peers approach and discounted cash flow approach. Declines in fair value could result in impairment being identified. At June 30, 2013, we did not identify any individual reporting unit where the fair value was less than the carrying value and no other events or changes have occurred since that date that would warrant an updated valuation. Future changes in the economic environment or the operations of the operating units could cause changes to the variables used, which could give rise to declines in the estimated fair value of the reporting units. There were no changes in our operations that would cause us to update the goodwill impairment test performed as of June 30, 2013. Accordingly, we have determined that goodwill is not impaired as of December 31, 2013 and 2012.

(j) *Core Deposit Intangibles and Other Identifiable Intangibles*

Through the assistance of an independent third party, we analyze and prepare a core deposit study for all bank acquisitions or other identifiable intangible asset study, such as customer lists, for all non-bank acquisitions. The core deposit study reflects the cumulative present value benefit of acquiring deposits versus an alternative source of funding. The other identifiable intangible asset study reflects the cumulative present value benefit of acquiring the income stream from an existing customer base versus developing new business relationships. Based upon analysis, the amount of the premium related to the core deposits or other identifiable intangibles of the business purchased is calculated along with the estimated life of the intangible. The intangible, which is recorded in other intangible assets, is then amortized to expense on an accelerated basis over an approximate life of seven years.

(k) *Bank-Owned Life Insurance*

We own insurance on the lives of a certain group of key employees and directors. The policies were purchased to help offset the increase in the costs of various fringe benefit plans, including healthcare, as well as the directors deferred compensation plan. The cash surrender value of these policies is included as an asset on the consolidated statements of financial condition, and any increases in the cash surrender value are recorded as tax-free noninterest income on the consolidated statements of income. In the event of the death of an insured individual under these policies, after distribution to the insured’s beneficiaries, if any, we receive a tax-free death benefit, which is recorded as noninterest income.

(l) *Deposits*

Interest on deposits is accrued and charged to expense monthly and is paid or credited in accordance with the terms of the accounts.

(m) *Pension Plans*

We maintain multiple noncontributory defined benefit pension plans for substantially all of our employees. The net periodic pension cost has been calculated using service cost, interest cost, expected returns on plan assets and net amortization.

(n) *Income Taxes*

We join with our wholly owned subsidiaries in filing a consolidated federal income tax return. In accordance with an intercompany tax allocation agreement, the applicable federal income tax expense or benefit is allocated to each subsidiary based upon taxable income or loss calculated on a separate company basis. Each subsidiary is responsible for payment of its own federal income tax liability or receives reimbursement of federal income tax benefit. In addition, deferred taxes are calculated and maintained on a separate company basis.

We account for income taxes under the asset and liability method. The objective of the asset and liability method is to establish deferred tax assets and liabilities for temporary differences between the financial reporting and tax basis of our assets and liabilities based on the tax rates expected to be in effect when such amounts are realized or settled.

(o) *Stock Related Compensation*

We determine the fair value of each option award, estimated on the grant date, using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model uses variables including; expected volatilities, expected term, risk-free discount rate and annual rate of quarterly dividends. Expected volatilities are based on historical volatility of the Company’s stock. The expected terms are based upon actual exercise and forfeiture experience of previous option grants. The risk-free rate is based on yields on U.S. Treasury securities of a similar maturity to the expected term of the options. During the year ended December 31, 2013 we awarded 511,100 stock options to employees and 79,200 stock options to directors. Option awards are generally granted with an exercise price equal to the closing market price of the Company’s stock on the day before the grant date. The options granted in 2013 vest over a ten-year period, with the first vesting occurring on the grant date. New shares are issued when options are exercised.

During the year ended December 31, 2013 we awarded 240,700 common shares to employees and 29,700 common shares to directors. The common share awards granted in 2013 vest over a ten-year period, with the first vesting occurring on the grant date. During the year ended December 31, 2013 we awarded 126,280 common shares to eligible employees from our employee stock ownership plan (“ESOP”). For additional information regarding grants of stock options and common shares and ESOP distributions see Note 14.

Stock-based employee compensation expense related to common share awards of $2.4 million, $2.1 million and $2.7 million was included in income before income taxes during the years ended December 31, 2013, 2012 and 2011, respectively. The effect on net income for the years ended December 31, 2013, 2012 and 2011 was a reduction of $1.6 million, $1.4 million and $1.8 million, respectively. Total compensation expense for unvested stock options of $5.2 million has yet to be recognized as of December 31, 2013. The weighted average period over which this remaining stock option expense will be recognized is approximately 4.39 years.

The fair value of each option grant is estimated on the date of grant using the Black-Scholes-Merton option-pricing model with the following weighted average assumptions: (1) dividend yields ranging from 1.6% to 5.1% based on historical dividends and market prices; (2) expected volatility of 17% to 33% based on historical volatility; (3) risk-free interest rates ranging from 1.7% to 6.5%; and (4) expected lives of seven to nine years based on previous grants.

(p) *Segment Reporting*

We have two reportable segments, Community Banking and Consumer Finance. See note 20 for related disclosures.

(q) *Derivative financial instruments — interest rate swaps*

We recognize all derivative financial instruments as either assets or liabilities in the balance sheet and measure those instruments at fair value. The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. An entity that elects to use hedge accounting is required, at inception, to establish the method it will use for assessing the effectiveness of the hedging derivative and the measurement approach for determining the ineffective aspect of the hedge. Those methods must be consistent with our approach to managing risk.

We utilize interest rate swap agreements as part of the management of interest rate risk to hedge the interest rate risk on our trust preferred debentures. Amounts receivable or payable are recognized as accrued under the terms of the agreements and the differential is recorded as an adjustment to interest expense. The interest rate swaps are designated as cash flow hedges, with the effective portion of the derivative’s unrealized gain or loss recorded as a component of other comprehensive income. The ineffective portion of the unrealized gain or loss, if any, would be recorded in other expense. See note 22 for related disclosures.

(r) *Off-Balance-Sheet Instruments*

In the normal course of business, we extend credit in the form of loan commitments, undisbursed lines of credit, and standby letters of credit. These off-balance-sheet instruments involve, to various degrees, elements of credit and interest rate risk not reported in the consolidated statement of financial condition. We utilize the same underwriting standards for these instruments as other extensions of credit.

(s) *Use of Estimates*

The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. The estimates and assumptions that we deem important to our financial statements relate to the allowance for loan losses, the accounting treatment and valuation of our investment securities portfolio, the analysis of the carrying value of goodwill and income taxes. These estimates and assumptions are based on management’s best estimates and judgment and we evaluate them using historical experience and other factors, including the current economic environment. We adjust our estimates and assumptions when facts and circumstances dictate. As future events cannot be determined, actual results could differ significantly from our estimates.

(t) *Reclassification of Prior Years’ Statements*

Certain items previously reported have been reclassified to conform with the current year’s reporting format.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2013
Recent Accounting Pronouncements	'
Recent Accounting Pronouncements	'
	(2) Recent Accounting Pronouncements

	In February 2013, FASB issued Accounting Standards Update No. 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” This guidance requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by Component. Additionally, entities are required to present significant amounts reclassified out of other comprehensive income by the respective line items of net income, but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required to be reclassified in their entirety to net income, entities are required to provide additional detail about these amounts. This guidance is effective for reporting periods beginning after December 15, 2012. The adoption of this standard did not have a material impact on our Consolidated Financial Statements. See note 19 on page 120.

	In January 2014, the FASB issued ASU No. 2014-04, “Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure”. This guidance clarifies that an in substance repossession or foreclosure has occurred, 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. Interim and annual disclosure is required 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. This guidance is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this standard will have a material impact on our results of operations or financial position.

	In January 2014, the FASB issued ASU No. 2014-01, “Accounting for Investments in Qualified Affordable Housing Projects.” This guidance permits reporting entities to make an accounting policy election to account for investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The proportional amortization method permits the amortization of 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. This guidance is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this standard will have a material impact on our results of operations or financial position.

Marketable_Securities

Marketable Securities	12 Months Ended
Marketable Securities	Dec. 31, 2013
Marketable Securities	'
Marketable Securities	'
	(3) Marketable Securities

	Marketable securities available-for-sale at December 31, 2013 are as follows:

						Gross		Gross
						unrealized		unrealized
			Amortized			holding		holding		Fair
			cost			gains		losses		value
	Debt issued by the U.S. government and agencies:
	Due in one year or less		$	32		—		—		32

	Debt issued by government sponsored enterprises:
	Due in one year - five years		227,945			166		(4,041	)	224,070
	Due in five years - ten years		94,777			72		(2,862	)	91,987

	Equity securities		5,298			4,622		(70	)	9,850

	Municipal securities:
	Due in one year or less		710			10		—		720
	Due in one year - five years		8,443			119		—		8,562
	Due in five years - ten years		11,228			275		—		11,503
	Due after ten years		71,068			1,111		(386	)	71,793

	Corporate debt issues:
	Due after ten years		21,150			475		(449	)	21,176

	Residential mortgage-backed securities:
	Fixed rate pass-through		85,306			3,041		(1,075	)	87,272
	Variable rate pass-through		78,890			3,525		(16	)	82,399
	Fixed rate non-agency CMOs		3,894			107		(3	)	3,998
	Fixed rate agency CMOs		265,769			1,060		(11,436	)	255,393
	Variable rate non-agency CMOs		660			—		(9	)	651
	Variable rate agency CMOs		146,908			674		(221	)	147,361
	Total residential mortgage-backed securities		581,427			8,407		(12,760	)	577,074
	Total marketable securities available-for-sale		$	1,022,078		15,257		(20,568	)	1,016,767

	Marketable securities held to maturity at December 31, 2013 are as follows:

						Gross		Gross
						unrealized		unrealized
			Amortized			holding		holding		Fair
			cost			gains		losses		value
	Municipal securities:
	Due in five - ten years		$	8,002		172		—		8,174
	Due after ten years		61,314			1,178		(27	)	62,465

	Residential mortgage-backed securities:
	Fixed rate pass-through		11,101			544		—		11,645
	Variable rate pass-through		5,172			71		—		5,243
	Fixed rate agency CMOs		34,425			780		(33	)	35,172
	Variable rate agency CMOs		1,352			10		—		1,362
	Total residential mortgage-backed securities		52,050			1,405		(33	)	53,422
	Total marketable securities held-to-maturity		$	121,366		2,755		(60	)	124,061

	Marketable securities available-for-sale at December 31, 2012 are as follows:

						Gross		Gross
						unrealized		unrealized
			Amortized			holding		holding		Fair
			cost			gains		losses		value
	Debt issued by the U.S. government and agencies:
	Due in one year or less		$	40		—		—		40

Debt issued by government sponsored enterprises:
Due in one year or less		1,999			5		—		2,004
Due in one year - five years		140,352			183		(22	)	140,513
Due in five years - ten years		95,602			460		(265	)	95,797

Equity securities		13,301			6,025		(22	)	19,304

Municipal securities:
Due in one year - five years		9,629			233		—		9,862
Due in five years - ten years		17,355			668		—		18,023
Due after ten years		100,644			5,679		—		106,323

Corporate debt issues:
Due after ten years		24,911			483		(2,691	)	22,703

Residential mortgage-backed securities:
Fixed rate pass-through		85,134			6,266		—		91,400
Variable rate pass-through		104,591			5,314		(6	)	109,899
Fixed rate non-agency CMOs		5,700			156		(236	)	5,620
Fixed rate agency CMOs		227,608			3,462		(744	)	230,326
Variable rate non-agency CMOs		873			—		(20	)	853
Variable rate agency CMOs		225,383			1,345		(321	)	226,407
Total residential mortgage-backed securities		649,289			16,543		(1,327	)	664,505
Total marketable securities available-for-sale		$	1,053,122		30,279		(4,327	)	1,079,074

Marketable securities held to maturity at December 31, 2012 are as follows:

					Gross		Gross
					unrealized		unrealized
		Amortized			holding		holding		Fair
		cost			gains		losses		value
Municipal securities:
Due in five - ten years		$	3,679		160		—		3,839
Due after ten years		65,596			3,743		—		69,339

Residential mortgage-backed securities:
Fixed rate pass-through		16,369			912		—		17,281
Variable rate pass-through		6,548			—		(14	)	6,534
Fixed rate agency CMOs		56,713			2,006		—		58,719
Variable rate agency CMOs		6,176			81		—		6,257
Total residential mortgage-backed securities		85,806			2,999		(14	)	88,791
Total marketable securities held-to-maturity		$	155,081		6,902		(14	)	161,969

The following table presents information regarding the issuers and the carrying values of our mortgage-backed securities at December 31, 2013 and 2012:

		December 31,
		2013			2012
Residential mortgage backed securities:
FNMA		$	279,684		341,778
GNMA		66,802			97,648
FHLMC		264,752			287,942
SBA		12,569			15,775
Other (including non-agency)		5,317			7,168
Total residential mortgage-backed securities		$	629,124		750,311

Marketable securities having a carrying value of $695.0 million at December 31, 2013, were pledged under collateral agreements. During the year ended December 31, 2013 we sold marketable securities classified as available-for-sale for $16.0 million, with gross realized gains of $5.8 million and gross realized losses of $0. We did not sell any marketable securities during the years ended December 31, 2012 or 2011. During the years ended December 31, 2013, 2012 and 2011 we recognized non-cash credit related other-than-temporary-impairment in our investment portfolio resulting in write-downs of $713,000, $331,000 and $937,000, respectively.

The following table shows the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2013:

		Less than 12 months					12 months or more				Total
					Unrealized				Unrealized			Unrealized
		Fair value			loss		Fair value		loss		Fair value	loss

U.S. government and agencies		$	213,915		(4,797	)	64,635		(2,106	)	278,550	(6,903	)
Municipal securities		12,666			(413	)	—		—		12,666	(413	)
Corporate debt issues		—			—		1,970		(449	)	1,970	(449	)
Equity securities		552			(70	)	—		—		552	(70	)
Residential mortgage-backed securities - non-agency		1,210			(12	)	—		—		1,210	(12	)
Residential mortgage-backed securities - agency		224,125			(10,398	)	109,301		(2,383	)	333,426	(12,781	)

Total temporarily impaired securities		$	452,468		(15,690	)	175,906		(4,938	)	628,374	(20,628	)

The following table shows the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2012:

		Less than 12 months					12 months or more				Total
					Unrealized				Unrealized			Unrealized
		Fair value			loss		Fair value		loss		Fair value	loss

U.S. government and agencies		$	70,128		(286	)	6,537		(1	)	76,665	(287	)
Corporate debt issues		850			(39	)	12,095		(2,652	)	12,945	(2,691	)
Equity securities		601			(21	)	17		(1	)	618	(22	)
Residential mortgage-backed securities - non-agency		—			—		4,357		(256	)	4,357	(256	)
Residential mortgage-backed securities - agency		167,294			(1,055	)	14,231		(30	)	181,525	(1,085	)

Total temporarily impaired securities		$	238,873		(1,401	)	37,237		(2,940	)	276,110	(4,341	)

We review our portfolio of municipal securities quarterly for impairment. We initially evaluate investments in municipal securities for other-than-temporary impairment by comparing the fair value, provided to us by two third party pricing sources using quoted prices for similar assets that are actively traded, to the carrying value. When an investment’s fair value is below 80% of the carrying value we then compare the stated interest rate to current market interest rates to determine if the decline in fair value is attributable to interest rates. If the stated interest rate approximates current interest rates for similar securities, we determine if the investment is rated and if so, if the rating has changed in the current period. If the rating has not changed during the current period, we review publicly available information to determine if there has been any negative change in the underlying municipality. As of December 31, 2013, none of the investments in our municipal securities portfolio had a book value that exceeded carrying value for more than 12 months.

Regularly, we perform an assessment to determine whether there have been any events or economic circumstances that indicate a security which has an unrealized loss is impaired other-than-temporarily. The assessment considers many factors including the severity and duration of the impairment; recent events specific to the issuer or industry; and for debt securities, external credit ratings, underlying collateral position and recent downgrades. For asset backed securities, we evaluate current characteristics of each security such as delinquency and foreclosure levels, credit enhancement and projected losses and coverage. It is possible that the underlying collateral of these securities will perform worse than current expectations, which may lead to adverse changes in cash flows on these securities and potential future losses. Events that may trigger material declines in fair values for these securities in the future would be, but are not limited to; deterioration of credit metrics, significantly higher levels of default and severity of loss on the underlying collateral, deteriorating credit enhancement and loss coverage ratios, or further illiquidity. For debt securities, credit related other-than-temporary impairment is recognized in earnings, while noncredit related other-than-temporary impairment on securities not expected to be sold, or otherwise disposed of, is recognized in other comprehensive income. We assert that we do not have the intent to sell these securities and it is more likely than not that we will not have to sell these securities before a recovery of our cost basis. For these reasons, we consider the unrealized losses to be temporary impairment losses. There are approximately 119 positions that are temporarily impaired at December 31, 2013. The aggregate carrying amount of cost-method investments, including both held-to-maturity and available-for-sale, at December 31, 2013 was $1.138 billion of which all were evaluated for impairment.

The following table sets forth the categories of investment securities as of December 31, 2013 on which other-than-temporary impairment charges have been recorded in earnings:

		Total							Accumulated
Category		Amortized			Fair		Unrealized		impairment
Category		cost			value		gain		charges
Freddie Mac preferred shares		$	49		1,376		1,327		(4,951	)
Trust preferred investments		17,259			17,704		445		(9,549	)
Non-agency CMOs		3,105			3,212		107		(1,007	)
		$	20,413		22,292		1,879		(15,507	)

The table below shows a cumulative roll forward of credit related impairment losses recognized in earnings for debt securities held and not intended to be sold:

		December 31,
		2013			2012
Beginning balance as of January 1 (1)		$	9,811		11,633
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized		713			—
Reduction for losses realized during the year		(182		)	(2,153	)
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized		—			331
Ending balance as of December 31		$	10,342		9,811


(1) The beginning balance represents credit losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

Loans_Receivable_and_Allowance

Loans Receivable and Allowance for Loan Losses	12 Months Ended
Loans Receivable and Allowance for Loan Losses	Dec. 31, 2013
Loans Receivable and Allowance for Loan Losses	'
Loans Receivable and Allowance for Loan Losses	'
	(4) Loans Receivable and Allowance for Loan Losses

	Loans receivable at December 31, 2013 and 2012 are summarized in the table below:

			December 31,
			2013			2012
	Personal Banking:
	Loans held for sale		$	221		15,441
	Residential mortgage loans		2,491,917			2,416,419
	Home equity loans		1,083,939			1,083,654
	Other consumer loans		228,348			228,350
	Total Personal Banking		3,804,425			3,743,864

	Business Banking:
	Commercial real estate		1,665,274			1,615,701
	Commercial loans		437,559			432,944
	Total Business Banking		2,102,833			2,048,645
	Total loans receivable, gross		5,907,258			5,792,509

	Deferred loan costs/ (fees)		2,461			(1,624	)
	Allowance for loan losses		(71,348		)	(73,219	)
	Undisbursed loan proceeds:
	Residential mortgage loans		(11,595		)	(14,587	)
	Commercial real estate		(56,875		)	(29,868	)
	Commercial loans		(34,958		)	(43,950	)
	Total loans receivable, net		$	5,734,943		5,629,261

	As of December 31, 2013, 2012 and 2011, we serviced loans for others approximating $851.4 million, $1.036 billion and $1.150 billion, respectively. These loans serviced for others are not our assets and are not included in our financial statements.

	As of December 31, 2013 and 2012, approximately 76% and 75%, respectively, of our loan portfolio was secured by properties located in Pennsylvania. We do not believe we have significant concentrations of credit risk to any one group of borrowers given our underwriting and collateral requirements.

	Loans receivable as of December 31, 2013 and 2012 include $1.771 billion and $1.772 billion, respectively, of adjustable rate loans and $4.136 billion and $4.021 billion, respectively, of fixed rate loans.

	The following table provides information related to changes in the allowance for losses on loans receivable for the year ended December 31, 2013:

			Balance			Provision		Charge-offs		Recoveries		Balance
			December 31,									December 31,
			2013									2012
	Personal Banking:
	Residental mortgage loans		$	7,875		1,954		(2,501	)	420		8,002
	Home equity loans		7,245			932		(2,239	)	258		8,294
	Other consumer loans		5,487			5,304		(6,055	)	1,082		5,156
	Total Personal Banking		20,607			8,190		(10,795	)	1,760		21,452

	Business Banking:
	Commercial real estate loans		34,969			8,207		(10,042	)	2,305		34,499
	Commercial loans		11,110			1,486		(5,007	)	1,389		13,242
	Total Business Banking		46,079			9,693		(15,049	)	3,694		47,741

	Unallocated		4,662			636		—		—		4,026

	Total		$	71,348		18,519		(25,844	)	5,454		73,219

	The following table provides information related to changes in the allowance for losses on loans receivable for the year ended December 31, 2012:

			Balance			Provision		Charge-offs		Recoveries		Balance
			December 31,									December 31,
			2012									2011
	Personal Banking:
	Residental mortgage loans		$	8,002		3,287		(4,295	)	528		8,482
	Home equity loans		8,294			3,376		(4,066	)	297		8,687
	Other consumer loans		5,156			4,340		(5,919	)	1,410		5,325
	Total Personal Banking		21,452			11,003		(14,280	)	2,235		22,494

Business Banking:
Commercial real estate loans		34,499			10,447		(9,919	)	1,823		32,148
Commercial loans		13,242			5,278		(6,254	)	2,138		12,080
Total Business Banking		47,741			15,725		(16,173	)	3,961		44,228

Unallocated		4,026			(390	)	—		—		4,416

Total		$	73,219		26,338		(30,453	)	6,196		71,138

The following table provides information related to changes in the allowance for losses on loans receivable for the year ended December 31, 2011:

		Balance			Provision		Charge-offs		Recoveries		Balance
		December 31,									December 31,
		2011									2010
Personal Banking:
Residental mortgage loans		$	8,482		5,518		(4,198	)	308		6,854
Home equity loans		8,687			5,619		(4,734	)	127		7,675
Other consumer loans		5,325			3,544		(5,283	)	1,254		5,810
Total Personal Banking		22,494			14,681		(14,215	)	1,689		20,339

Business Banking:
Commercial real estate loans		32,148			7,952		(12,508	)	872		35,832
Commercial loans		12,080			11,592		(15,641	)	359		15,770
Total Business Banking		44,228			19,544		(28,149	)	1,231		51,602

Unallocated		4,416			(55	)	—		—		4,471

Total		$	71,138		34,170		(42,364	)	2,920		76,412

While management uses available information to provide for losses, future additions to the allowance may be necessary based on changes in economic conditions. Current economic conditions have increased the uncertainty inherent in our estimates and assumptions. In addition, various regulatory agencies, as an integral part of their examination process, periodically review our allowance for loan losses. Such agencies may require us to recognize additions to the allowance based on their judgments about information available to them at the time of their examination. Management believes, to the best of their knowledge, that all known losses as of the balance sheet dates have been recorded.

The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable as of December 31, 2013:

		Recorded			Allowance for		Recorded		Recorded		TDRs		Allowance	Additional
		investment in			loan losses		investment in		investment in				related to	commitments
		loans					loans on		loans past due				TDRs	to customers
		receivable					nonaccrual		90 days or					with loans
							-1		more and still					classified as
									accruing					TDRs
Personal Banking:
Residental mortgage loans		$	2,483,004		7,875		27,277		—		4,004		863	—
Home equity loans		1,083,939			7,245		9,863		1		2,240		371	—
Other consumer loans		228,348			5,487		2,257		666		—		—	—
Total Personal Banking		3,795,291			20,607		39,397		667		6,244		1,234	—

Business Banking:
Commercial real estate loans		1,608,399			34,969		41,803		—		48,829		4,503	301
Commercial loans		402,601			11,110		26,021		23		24,093		2,778	454
Total Business Banking		2,011,000			46,079		67,824		23		72,922		7,281	755

Total		$	5,806,291		66,686		107,221		690		79,166		8,515	755


(1) Includes $28.9 million of nonaccrual TDRs.

The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable as of December 31, 2012:

		Recorded			Allowance for		Recorded		Recorded		TDRs		Allowance	Additional
		investment in			loan losses		investment in		investment in				related to	commitments
		loans					loans on		loans past due				TDRs	to customers
		receivable					nonaccrual		90 days or					with loans
							-1		more and still					classified as
									accruing					TDRs
Personal Banking:
Residental mortgage loans		$	2,415,649		8,002		25,083		9		5,045		1,074	—
Home equity loans		1,083,654			8,294		9,114		2		1,891		266	—
Other consumer loans		228,350			5,156		1,980		776		—		—	—
Total Personal Banking		3,727,653			21,452		36,177		787		6,936		1,340	—

Business Banking:
Commercial real estate loans		1,585,833			34,499		57,861		388		49,826		7,322	391
Commercial loans		388,994			13,242		26,174		523		32,682		4,112	2,596
Total Business Banking		1,974,827			47,741		84,035		911		82,508		11,434	2,987

Total		$	5,702,480		69,193		120,212		1,698		89,444		12,774	2,987


(1) Includes $41.2 million of nonaccrual TDRs.

A loan is considered to be impaired, when, based on current information and events it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement including both contractual principal and interest payments. This includes non-accrual loans, loans more than 90 days delinquent and still accruing interest, loans for which we perform an impairment review and TDRs. Impairment is measured using one of three methods: (1) the present value of expected future cash flows discounted at the loan’s effective interest rate; (2) the loan’s observable market price; or (3) the fair value of collateral if the loan is collateral dependent. If the measure of the impaired loan is less than the recorded investment in the loan, a specific allowance is allocated for the impairment.

The following table provides information related to the composition of impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2013:

		Nonaccrual			Nonaccrual		Loans less		TDRs less		Total		Average	Interest
		loans 90 or			loans less		than 90 days		than 90 days		impaired		recorded	income
		more days			than 90 days		delinquent		delinquent		loans		investment	recognized
		delinquent			delinquent		reviewed for		not included				in impaired	on impaired
							impairment		elsewhere				loans	loans
Personal Banking:
Residential mortgage loans		$	24,625		2,652		—		3,372		30,649		29,994	723
Home equity loans		8,344			1,519		—		1,810		11,673		10,828	383
Other consumer loans		2,057			200		—		—		2,257		1,976	44
Total Personal Banking		35,026			4,371		—		5,182		44,579		42,798	1,150

Business Banking:
Commercial real estate loans		18,433			23,370		39,199		13,060		94,062		90,912	3,678
Commercial loans		4,298			21,723		5,219		3,963		35,203		41,303	1,127
Total Business Banking		22,731			45,093		44,418		17,023		129,265		132,215	4,805

Total		$	57,757		49,464		44,418		22,205		173,844		175,013	5,955

The following table provides information related to the composition of impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2012:

		Nonaccrual			Nonaccrual		Loans less		TDRs less		Total		Average	Interest
		loans 90 or			loans less		than 90 days		than 90 days		impaired		recorded	income
		more days			than 90 days		delinquent		delinquent		loans		investment	recognized
		delinquent			delinquent		reviewed for		not included				in impaired	on impaired
							impairment		elsewhere				loans	loans
Personal Banking:
Residential mortgage loans		$	24,286		797		—		3,011		28,094		28,078	683
Home equity loans		8,479			635		—		1,352		10,466		10,535	342
Other consumer loans		1,936			44		—		—		1,980		1,841	35
Total Personal Banking		34,701			1,476		—		4,363		40,540		40,454	1,060

Business Banking:
Commercial real estate loans		24,550			33,311		33,282		16,274		107,417		98,891	3,636
Commercial loans		9,096			17,078		—		10,180		36,354		51,131	1,828
Total Business Banking		33,646			50,389		33,282		26,454		143,771		150,022	5,464

Total		$	68,347		51,865		33,282		30,817		184,311		190,476	6,524

The following table provides information related to the composition of impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2011:

		Nonaccrual			Nonaccrual		Loans less		TDRs less		Total		Average	Interest
		loans 90 or			loans less		than 90 days		than 90 days		impaired		recorded	income
		more days			than 90 days		delinquent		delinquent		loans		investment	recognized
		delinquent			delinquent		reviewed for		not included				in impaired	on impaired
							impairment		elsewhere				loans	loans
Personal Banking:
Residential mortgage loans		$	28,221		—		—		361		28,582		30,731	538
Home equity loans		9,560			—		—		—		9,560		9,574	182
Other consumer loans		2,667			—		—		—		2,667		2,340	34
Total Personal Banking		40,448			—		—		361		40,809		42,645	754

Business Banking:
Commercial real estate loans		44,603			17,891		15,467		16,097		94,058		101,731	3,640
Commercial loans		10,785			17,378		7,337		8,991		44,491		59,897	1,642
Total Business Banking		55,388			35,269		22,804		25,088		138,549		161,628	5,282

Total		$	95,836		35,269		22,804		25,449		179,358		204,273	6,036

The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable as of and for the year ended December 31, 2013:

		Loans			Loans		Loans		Related		Loans
		collectively			individually		individually		impairment		individually
		evaluated for			evaluated for		evaluated for		reserve		evaluated for
		impairment			impairment		impairment				impairment
							for which				for which
							there is a				there is no
							related				related
							impairment				reserve
							reserve
Personal Banking:
Residental mortgage loans		$	2,477,888		5,116		5,116		1,136		—
Home equity loans		1,081,699			2,240		2,240		333		—
Other consumer loans		228,227			121		121		1		—
Total Personal Banking		3,787,814			7,477		7,477		1,470		—

Business Banking:
Commercial real estate loans		1,532,117			76,282		45,761		6,300		30,521
Commercial loans		371,287			31,314		21,395		4,133		9,919
Total Business Banking		1,903,404			107,596		67,156		10,433		40,440

Total		$	5,691,218		115,073		74,633		11,903		40,440

The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable as of and for the year ended December 31, 2012:

		Loans			Loans		Loans		Related		Loans
		collectively			individually		individually		impairment		individually
		evaluated for			evaluated for		evaluated for		reserve		evaluated for
		impairment			impairment		impairment				impairment
							for which				for which
							there is a				there is no
							related				related
							impairment				reserve
							reserve
Personal Banking:
Residental mortgage loans		$	2,410,604		5,045		5,045		992		—
Home equity loans		1,081,763			1,891		1,891		189		—
Other consumer loans		228,350			—		—		—		—
Total Personal Banking		3,720,717			6,936		6,936		1,181		—

Business Banking:
Commercial real estate loans		1,501,032			84,801		61,136		9,789		23,665
Commercial loans		352,752			36,242		35,622		5,637		620
Total Business Banking		1,853,784			121,043		96,758		15,426		24,285

Total		$	5,574,501		127,979		103,694		16,607		24,285

Our loan portfolios include certain loans that have been modified in a troubled debt restructuring (TDR), where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include: extending the note’s maturity date, permitting interest only payments, reducing the interest rate to a rate lower than current market rates for new debt with similar risk, reducing the principal payment, principal forbearance or other actions. These concessions are applicable to all loan segments and classes. Certain TDRs are classified as nonperforming at the time of restructuring and typically are returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period of at least six months.

When we modify loans in a TDR, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, the loan’s observable market price or use the current fair value of the collateral, less selling costs, for collateral dependent loans. If we determine that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, we evaluate all TDRs, including those that have payment defaults, for possible impairment, using ASC 310-10. As a result, loans modified in a TDR may have the financial effect of increasing the specific allowance associated with the loan.

Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a TDR subsequently default, we evaluate the loan for possible further impairment. The allowance may be increased, adjustments may be made in the allocation of the allowance, partial charge-offs may be taken to further write-down the carrying value of the loan, or the loan may be charged-off completely.

The following table provides a roll forward of troubled debt restructurings for the periods indicated:

		For the years ended December 31,
		2013					2012
		Number					Number
		of					of
		contracts					contracts
Beginning TDR balance:		225		$	89,444		47		$	69,429
New TDRs		121		31,111			201		56,845
Net paydowns				(25,715		)			(25,205		)
Charge-offs:
Residential mortgage loans		4		(357		)	3		(38		)
Home equity loans		5		(120		)	6		(126		)
Commercial real estate loans		4		(1,063		)	2		(554		)
Commercial loans		9		(389		)	1		(1,986		)
Paid-off loans:
Residential mortgage loans		2		(502		)	—		—
Home equity loans		5		(24		)	—		—
Commercial real estate loans		10		(6,927		)	9		(8,537		)
Commercial loans		30		(4,222		)	2		(384		)
Transferred to real estate owned
Commercial loans		1		(2,070		)	—		—
Ending TDR balance:		276		$	79,166		225		$	89,444

Accruing TDRs				$	50,277				$	48,278
Non-accrual TDRs				28,889					41,166

The following table provides information related to troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2013:

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification
Troubled debt restructurings:
Personal Banking:
Residential mortgage loans		4		$	374		319		50
Home equity loans		12		656			692		118
Other consumer loans		—		—			—		—
Total Personal Banking		16		1,030			1,011		168

Business Banking:
Commercial real estate loans		58		16,760			11,196		781
Commercial loans		47		13,321			12,754		162
Total Business Banking		105		30,081			23,950		943

Total		121		$	31,111		24,961		1,111

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification

Troubled debt restructurings that subsequently defaulted:
Personal Banking:
Residential mortgage loans		5		$	950		607		160
Home equity loans		2		183			188		170
Other consumer loans		—		—			—		—
Total Personal Banking		7		1,133			795		330

Business Banking:
Commercial real estate loans		15		5,281			3,488		533
Commercial loans		11		9,952			1,165		45
Total Business Banking		26		15,233			4,653		578

Total		33		$	16,366		5,448		908

The following table provides information related to troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2012:

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification
Troubled debt restructurings:
Personal Banking:
Residential mortgage loans		35		$	6,136		5,045		1,016
Home equity loans		42		2,071			1,891		266
Other consumer loans		—		—			—		—
Total Personal Banking		77		8,207			6,936		1,282

Business Banking:
Commercial real estate loans		58		19,582			17,724		2,509
Commercial loans		66		29,056			22,584		3,219
Total Business Banking		124		48,638			40,308		5,728

Total		201		$	56,845		47,244		7,010

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification

Troubled debt restructurings that subsequently defaulted:
Personal Banking:
Residential mortgage loans		2		$	529		429		153
Home equity loans		—		—			—		—
Other consumer loans		—		—			—		—
Total Personal Banking		2		529			429		153

Business Banking:
Commercial real estate loans		8		2,870			2,346		786
Commercial loans		10		1,456			665		75
Total Business Banking		18		4,326			3,011		861

Total		20		$	4,855		3,440		1,014

The following table provides information related to troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2011:

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification
Troubled debt restructurings:
Personal Banking:
Residential mortgage loans		2		$	894		806		128
Home equity loans		—		—			—		—
Other consumer loans		—		—			—		—
Total Personal Banking		2		894			806		128

Business Banking:
Commercial real estate loans		21		21,617			21,387		1,358
Commercial loans		21		17,673			16,011		646
Total Business Banking		42		39,290			37,398		2,004

Total		44		$	40,184		38,204		2,132

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification

Troubled debt restructurings that subsequently defaulted:
Personal Banking:
Residential mortgage loans		—		$	—		—		—
Home equity loans		—		—			—		—
Other consumer loans		—		—			—		—
Total Personal Banking		—		—			—		—

Business Banking:
Commercial real estate loans		8		3,616			2,218		516
Commercial loans		4		10,864			1,385		277
Total Business Banking		12		14,480			3,603		793

Total		12		$	14,480		3,603		793

The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2013:

		Number of re-		Type of modification
		modified		Type of modification
		TDRs		Rate			Payment		Maturity date		Other		Total
Personal Banking:
Residental mortgage loans		—		$	—		—		—		—		—
Home equity loans		1		—			89		—		—		89
Other consumer loans		—		—			—		—		—		—
Total Personal Banking		1		—			89		—		—		89

Business Banking:
Commercial real estate loans		8		152			227		471		—		850
Commercial loans		5		—			—		10,610		—		10,610
Total Business Banking		13		152			227		11,081		—		11,460

Total		14		$	152		316		11,081		—		11,549

The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2012:

		Number of re-		Type of modification
		modified		Type of modification
		TDRs		Rate			Payment		Maturity date		Other		Total
Personal Banking:
Residental mortgage loans		—		$	—		—		—		—		—
Home equity loans		—		—			—		—		—		—
Other consumer loans		—		—			—		—		—		—
Total Personal Banking		—		—			—		—		—		—

Business Banking:
Commercial real estate loans		5		800			—		1,662		231		2,693
Commercial loans		7		1,747			—		4,077		304		6,128
Total Business Banking		12		2,547			—		5,739		535		8,821

Total		12		$	2,547		—		5,739		535		8,821

The following table provides information related to loan delinquencies as of December 31, 2013:

		30-59 days			60-89 days		90 days or		Total		Current		Total
		delinquent			delinquent		greater		delinquency				loans
							delinquent
Personal Banking:
Residential mortgage loans		$	27,486		7,568		24,625		59,679		2,423,325		2,483,004
Home equity loans		6,946			2,243		8,344		17,533		1,066,406		1,083,939
Other consumer loans		4,515			1,866		2,057		8,438		219,910		228,348
Total Personal Banking		38,947			11,677		35,026		85,650		3,709,641		3,795,291

Business Banking:
Commercial real estate loans		8,449			3,968		18,433		30,850		1,577,549		1,608,399
Commercial loans		9,243			1,555		4,298		15,096		387,505		402,601
Total Business Banking		17,692			5,523		22,731		45,946		1,965,054		2,011,000

Total		$	56,639		17,200		57,757		131,596		5,674,695		5,806,291

The following table provides information related to loan delinquencies as of December 31, 2012:

		30-59 days			60-89 days		90 days or		Total		Current		Total
		delinquent			delinquent		greater		delinquency				loans
							delinquent
Personal Banking:
Residential mortgage loans		$	32,921		9,387		24,286		66,594		2,349,055		2,415,649
Home equity loans		6,534			1,977		8,479		16,990		1,066,664		1,083,654
Other consumer loans		5,456			1,830		1,936		9,222		219,128		228,350
Total Personal Banking		44,911			13,194		34,701		92,806		3,634,847		3,727,653

Business Banking:
Commercial real estate loans		13,001			4,596		24,550		42,147		1,543,686		1,585,833
Commercial loans		3,233			10,158		9,096		22,487		366,507		388,994
Total Business Banking		16,234			14,754		33,646		64,634		1,910,193		1,974,827

Total		$	61,145		27,948		68,347		157,440		5,545,040		5,702,480

Credit quality indicators: We categorize loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. We analyze business loans individually by classifying the loans by credit risk. Credit relationships greater than or equal to $1.0 million classified as special mention or substandard are reviewed quarterly for further deterioration or improvement to determine if the loan is appropriately classified. We use the following definitions for risk ratings other than pass:

Special mention — Loans designated as special mention have specific, well-defined risk issues, which create a high level of uncertainty regarding the long-term viability of the business. Loans in this class are considered to have high-risk characteristics. A special mention loan exhibits material negative financial trends due to company-specific or systemic conditions. If these potential weaknesses are not mitigated, they threaten the borrower’s capacity to meet its debt obligations. Special mention loans still demonstrate sufficient financial flexibility to react to and positively address the root cause of the adverse financial trends without significant deviations from their current business strategy. Their potential weaknesses deserve our close attention and warrant enhanced monitoring.

Substandard — Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected.

Doubtful — Loans classified as doubtful have all the weaknesses inherent in those classified as substandard. In addition, those weaknesses make collection or liquidation in full highly questionable and improbable. A loan classified as doubtful exhibits discernible loss potential, but a complete loss seems very unlikely. The possibility of a loss on a doubtful loan is high, but because of certain important and reasonably specific pending factors that may strengthen the loan, its classification as an estimated loss is deferred until a more exact status can be determined.

Loss — Loans classified as loss are considered uncollectible and of such value that the continuance as a loan is not warranted. A loss classification does not mean that the loan has no recovery or salvage value; instead, it means that it is not practical or desirable to defer writing off all or a portion of a basically worthless loan even though partial recovery may be affected in the future.

The following table sets forth information about credit quality indicators as of December 31, 2013:

		Pass			Special		Substandard		Doubtful		Loss		Total
		Pass			mention		Substandard		Doubtful		Loss		Total
Personal Banking:
Residential mortgage loans		$	2,464,057		—		17,626		—		1,321		2,483,004
Home equity loans		1,075,595			—		8,344		—		—		1,083,939
Other consumer loans		226,922			—		1,426		—		—		228,348
Total Personal Banking		3,766,574			—		27,396		—		1,321		3,795,291

Business Banking:
Commercial real estate loans		1,398,652			46,557		161,906		1,284		—		1,608,399
Commercial loans		345,612			12,045		43,040		1,904		—		402,601
Total Business Banking		1,744,264			58,602		204,946		3,188		—		2,011,000

Total		$	5,510,838		58,602		232,342		3,188		1,321		5,806,291

The following table sets forth information about credit quality indicators as of December 31, 2012:

		Pass			Special		Substandard		Doubtful		Loss		Total
		Pass			mention		Substandard		Doubtful		Loss		Total
Personal Banking:
Residential mortgage loans		$	2,395,809		—		18,743		48		1,049		2,415,649
Home equity loans		1,075,200			—		8,454		—		—		1,083,654
Other consumer loans		227,089			—		1,261		—		—		228,350
Total Personal Banking		3,698,098			—		28,458		48		1,049		3,727,653

Business Banking:
Commercial real estate loans		1,352,118			68,130		163,751		1,834		—		1,585,833
Commercial loans		320,228			13,077		52,742		2,947		—		388,994
Total Business Banking		1,672,346			81,207		216,493		4,781		—		1,974,827

Total		$	5,370,444		81,207		244,951		4,829		1,049		5,702,480

Our exposure to credit loss in the event of nonperformance by the other party to off-balance-sheet financial instruments is represented by the contract amount of the financial instrument. We use the same credit policies in making commitments for off-balance-sheet financial instruments as we do for on-balance-sheet instruments. Financial instruments with off-balance-sheet risk as of December 31, 2013 and 2012 are presented in the following table:

		December 31,
		2013			2012
Loan commitments		$	174,998		66,973
Undisbursed lines of credit		432,334			401,685
Standby letters of credit		27,347			57,122
		$	634,679		525,780

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. We evaluate each customer’s creditworthiness on a case-by-case basis. The amount of collateral we obtain upon extension of credit is based on management’s credit evaluation of the counterparty. Collateral held varies but generally may include cash, marketable securities, real estate and other property.

Outstanding loan commitments at December 31, 2013, for fixed rate loans, were $55.1 million. The interest rates on these commitments approximate market rates at December 31, 2013. Outstanding loan commitments at December 31, 2013 for adjustable rate loans were $119.9 million. The fair values of these commitments are affected by fluctuations in market rates of interest.

We issue standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party. We are required to perform under a standby letter of credit when drawn upon by the guaranteed third party in the case of nonperformance by our customer. The credit risk associated with standby letters of credit is essentially the same as that involved in extending loans to customers and is subject to normal credit policies. Collateral may be obtained based on management’s credit assessment of the customer. As of December 31, 2013, the maximum potential amount of future payments we could be required to make under these standby letters of credit is $27.3 million, of which $26.7 million is fully collateralized. A liability (which represents deferred income) of $897,000 and $843,000 has been recognized for the obligations as of December 31, 2013 and 2012, respectively, and there are no recourse provisions that would enable us to recover any amounts from third parties.

Mortgage servicing assets are recognized as separate assets when servicing rights are created through loan originations and the underlying loan is sold. Upon sale, the mortgage servicing right (“MSR”) is established, which represents the then-fair value of future net cash flows expected to be realized for performing the servicing activities. The fair value of the MSRs are estimated by calculating the present value of estimated future net servicing cash flows, taking into consideration actual and expected mortgage loan prepayment rates, discount rates, servicing costs and other economic factors, which are determined based on current market conditions. In determining the fair value of the MSRs, stochastic modeling is performed using variables such as the forward yield curve, prepayment rates, annual service cost, average life expectancy and option adjusted spreads. MSRs are amortized against mortgage banking income in proportion to, and over the period of, the estimated future net servicing income of the underlying mortgage loans. MSRs are recorded in other assets on the consolidated statements of financial condition.

Capitalized MSRs are evaluated quarterly for impairment based on the estimated fair value of those rights. The MSRs are stratified by certain risk characteristics, primarily loan term and note rate. If impairment exists within a risk stratification tranche, a valuation allowance is established through a charge to income equal to the amount by which the carrying value exceeds the fair value. If it is later determined all or a portion of the temporary impairment no longer exists for a particular tranche, the valuation allowance is reduced or eliminated. We do not directly hedge against realized or potential future impairment losses on our MSRs.

The following table shows changes in MSRs as of and for the year ended December 31, 2013:

							Net
							carrying
		Servicing			Valuation		value and
		rights			allowance		fair value

Balance at December 31, 2011		$	3,655		—		3,655
Additions		2,285			—		2,285
Amortization		(2,649		)	—		(2,649	)
Balance at December 31, 2012		3,291			—		3,291
Additions		461			—		461
Amortization		(1,818		)	—		(1,818	)
Balance at December 31, 2013		$	1,934		—		1,934

The following table presents additional information about the inputs used to determine the fair value of our MSRs at the periods indicated (dollar amounts not in thousands):

		December 31,
		2013			2012
		(Weighted average)

Forward yield curve (5 year LIBOR swap)		1.47		%	0.75		%
Prepayment rates		10.9		%	22.7		%
Annual service cost per loan		$	68		$	77
Average life expectancy (months)		82			45
Option adjusted spread (basis points)		750			800

Accrued_Interest_Receivable

Accrued Interest Receivable	12 Months Ended
Accrued Interest Receivable	Dec. 31, 2013
Accrued Interest Receivable	'
Accrued Interest Receivable	'
	(5) Accrued Interest Receivable

	Accrued interest receivable as of December 31, 2013 and 2012 is presented in the following table:

		December 31,
		2013		2012
	Investment securities	$	2,205	2,354
	Mortgage-backed securities	1,079		1,359
	Loans receivable	18,537		19,600
		$	21,821	23,313

Federal_Home_Loan_Bank_Stock

Federal Home Loan Bank Stock	12 Months Ended
Federal Home Loan Bank Stock	Dec. 31, 2013
Federal Home Loan Bank Stock	'
Federal Home Loan Bank Stock	'
	(6) Federal Home Loan Bank Stock

	Our banking subsidiary is a member of the Federal Home Loan Bank system. As a member, we are required to maintain an investment in the capital stock of the FHLB of Pittsburgh, at cost, in an amount not less than 4.00% of borrowings outstanding plus 0.35% of member asset value, as defined by the FHLB of Pittsburgh, and 1.60% of certain letters of credit. The FHLB of Pittsburgh repurchased excess stock of $3.1 million and $2.1 million during the years ended December 31, 2013 and 2012, respectively. We received dividends on capital stock during the years ended December 31, 2013 and 2012 of $371,000 and $87,000, respectively.

Premises_and_Equipment

Premises and Equipment	12 Months Ended
Premises and Equipment	Dec. 31, 2013
Premises and Equipment	'
Premises and Equipment	'
	(7) Premises and Equipment

	Premises and equipment at December 31, 2013 and 2012 are summarized by major classification in the following table:

		December 31,
		2013			2012
	Land and land improvements	$	20,041		17,308
	Office buildings and improvements	152,428			139,167
	Furniture, fixtures and equipment	106,139			106,433
	Leasehold improvements	12,211			12,298
	Total, at cost	290,819			275,206
	Less accumulated depreciation and amortization	(144,680		)	(136,382	)
	Premises and equipment, net	$	146,139		138,824

	Depreciation and amortization expense for the years ended December 31, 2013, 2012 and 2011 was $11.9 million, $11.5 million and $11.7 million, respectively.

	Premises used by certain of our offices are occupied under formal operating lease arrangements. The leases expire on various dates through 2027. Minimum annual rentals by fiscal year are summarized in the following table:

	2014	$	3,808
	2015	3,068
	2016	2,636
	2017	2,099
	2018	1,547
	Thereafter	5,144
		$	18,302

	Rental expense for the years ended December 31, 2013, 2012 and 2011 was $4.2 million, $4.9 million and $4.3 million, respectively.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
Goodwill and Other Intangible Assets	Dec. 31, 2013
Goodwill and Other Intangible Assets	'
Goodwill and Other Intangible Assets	'
	(8) Goodwill and Other Intangible Assets

	The following table provides information for intangible assets subject to amortization for the years ended December 31, 2013 and 2012:

		December 31,
		2013			2012
	Amortizable intangible assets:
	Core deposit intangibles — gross	$	30,578		30,578
	Acquisitions	—			—
	Less: accumulated amortization	(30,491		)	(30,181	)
	Core deposit intangibles — net	$	87		397

	Customer and Contract intangible assets — gross	6,197			3,779
	Acquisitions	—			2,418
	Less: accumulated amortization	(3,965		)	(3,065	)
	Customer and Contract intangible assets — net	$	2,232		3,132

	The following information shows the actual aggregate amortization expense for the years ended December 31, 2013, 2012 and 2011 as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for each of the five succeeding fiscal years:

	For the year ended December 31, 2011	$	1,819
	For the year ended December 31, 2012	1,012
	For the year ended December 31, 2013	1,210
	For the year ending December 31, 2014	814
	For the year ending December 31, 2015	571
	For the year ending December 31, 2016	415
	For the year ending December 31, 2017	259
	For the year ending December 31, 2018	173

	The following table provides information for the changes in the carrying amount of goodwill:

		Community			Consumer
		Banks			Finance		Total
	Balance at December 31, 2011	$	170,269		1,613		171,882
	Goodwill acquired	2,579			—		2,579
	Impairment losses	—			—		—
	Balance at December 31, 2012	172,848			1,613		174,461
	Goodwill acquired	2			—		2
	Impairment losses	—			—		—
	Balance at December 31, 2013	$	172,850		1,613		174,463

	We have determined that goodwill is not impaired as of December 31, 2013 and 2012. There were no changes in our operations that would cause us to update the goodwill impairment test performed as of June 30, 2013.

Deposits

Deposits	12 Months Ended
Deposits	Dec. 31, 2013
Deposits	'
Deposits	'
	(9) Deposits

	Deposit balances at December 31, 2013 and 2012 are shown in the table below:

		December 31,
		2013		2012
	Savings accounts	$	1,191,584	1,158,795
	Interest-bearing checking accounts	852,809		851,771
	Noninterest-bearing checking accounts	789,135		755,429
	Money market deposit accounts	1,167,954		1,112,516
	Certificates of deposit	1,667,397		1,886,089
		$	5,668,879	5,764,600

	The aggregate amount of certificates of deposit with a minimum denomination of $100,000 at December 31, 2013 and 2012 was $413.1 million and $475.5 million, respectively. While it is not our practice to solicit brokered deposits, we are a registered participant in the CDARS program and have twelve customers currently participating with a total balance of $985,000 at December 31, 2013.

	Generally, deposits in excess of $250,000 are not federally insured. At December 31, 2013, we had $1.032 billion of deposits in accounts exceeding $250,000.

	The following table summarizes the contractual maturity of the certificate accounts at December 31, 2013 and 2012:

		December 31,
		2013		2012
	Due within 12 months	$	665,779	871,580
	Due between 12 and 24 months	297,653		232,392
	Due between 24 and 36 months	325,281		206,578
	Due between 36 and 48 months	276,858		275,723
	Due between 48 and 60 months	93,278		281,683
	After 60 months	8,548		18,133
		$	1,667,397	1,886,089

	The following table summarizes the interest expense incurred on the respective deposits for the years ended December 31, 2013, 2012 and 2011:

		Years ended December 31,
		2013		2012	2011
	Savings accounts	$	3,595	4,219	5,000
	Interest-bearing checking accounts	576		792	960
	Money market deposit accounts	3,042		3,605	4,243
	Certificate accounts	22,066		34,761	50,518
		$	29,279	43,377	60,721

Borrowed_Funds

Borrowed Funds	12 Months Ended
Borrowed Funds	Dec. 31, 2013
Borrowed Funds	'
Borrowed Funds	'
	(10) Borrowed Funds

	Borrowed funds at December 31, 2013 and 2012 are presented in the following table:

		December 31,
		2013				2012
		Amount		Average		Amount	Average
		Amount		rate		Amount	rate
	Term notes payable to the FHLB of Pittsburgh:
	Due within one year	$	2	1.78	%	—	—
	Due between one and two years	110,000		2.53	%	23	1.75	%
	Due between two and three years	145,445		3.24	%	110,000	2.53	%
	Due between three and four years	125,000		3.68	%	145,493	3.24	%
	Due between four and five years	125,000		4.03	%	125,000	3.68	%
	Due between five and ten years	220,000		4.07	%	315,000	4.25	%
		725,447				695,516
	Revolving line of credit, FHLB of Pittsburgh	—		—		—	—
	Securities sold under agreement to repurchase, due within one year	156,198		0.31	%	164,531	0.32	%
	Total borrowed funds	$	881,645			860,047

	During the first and second quarters of 2013 we took advances totaling $30.0 million with a weighted effective interest rate of 2.03% and maturities between seven and ten years from the FHLB of Pittsburgh. Borrowings from the FHLB of Pittsburgh are secured by our residential first mortgage loans and other qualifying loans. Certain of these borrowings are subject to restrictions or penalties in the event of prepayment. During 2010, we restructured $695.0 million of FHLB of Pittsburgh borrowings reducing the annual cost by 0.22%, while extending the average maturities of these borrowings by 3.5 years. We incurred a penalty of $52.2 million in conjunction with this restructuring, which will be amortized over the life of the borrowings into interest expense. As of December 31, 2013, $28.7 million remains to be amortized.

	The revolving line of credit with the FHLB of Pittsburgh carries a commitment of $150.0 million. The rate is adjusted daily by the FHLB of Pittsburgh, and any borrowings on this line may be repaid at any time without penalty.

	The securities sold under agreements to repurchase are collateralized by various securities held in safekeeping by the FHLB of Pittsburgh. The market value of such securities exceeds the value of the securities sold under agreements to repurchase. The average amount of such security repurchase agreements outstanding in the years ended December 31, 2013, 2012 and 2011 was $150.1 million, $154.6 million and $140.8 million, respectively. The maximum amount of security repurchase agreements outstanding during the years ended December 31, 2013, 2012 and 2011 was $171.8 million, $176.5 million and $151.8 million, respectively.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2013
Income Taxes	'
Income Taxes	'
	(11) Income Taxes

	Total income tax was allocated for the years ended December 31, 2013, 2012 and 2011 as follows:

			Years ended December 31,
			2013			2012		2011
	Income before income taxes		$	26,331		26,368		26,857
	Shareholders’ equity for unrealized (loss)/ gain on securities available-for-sale		(12,177		)	1,204		7,029
	Shareholders’ equity for tax benefit for excess of fair value above cost of stock benefit plans		(635		)	(403	)	(610	)
	Shareholders’ equity for pension adjustment		9,904			6,056		(11,487	)
	Shareholders’ equity for swap fair value adjustment		1,714			246		(1,506	)
	Goodwill attributable to acquisition		—			863		—
			$	25,137		34,334		20,283

	Income tax expense (benefit) applicable to income before taxes consists of:

			Years ended December 31,
			2013			2012		2011
	Current		$	24,908		23,073		19,108
	Deferred		1,423			3,295		7,749
			$	26,331		26,368		26,857

	A reconciliation of the expected federal statutory income tax rate to the effective rate, expressed as a percentage of pretax income for the years ended December 31, 2013, 2012 and 2011, is as follows:

			Years ended December 31,
			2013		2012		2011
	Expected tax rate		35	%	35	%	35	%
	Tax-exempt interest income		(4.3	)%	(5.0	)%	(5.4	)%
	State income tax, net of federal benefit		2.1	%	2.8	%	2.9	%
	Bank-owned life insurance		(1.9	)%	(1.9	)%	(2.3	)%
	Dividends on stock plans		(1.1	)%	(1.3	)%	(0.9	)%
	Low income housing and historic tax credits		(1.6	)%	(0.6	)%	-0.6	%
	Other		0.1	%	0.3	%	0.8	%
	Effective tax rate		28.3	%	29.3	%	29.5	%

	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2013 and 2012 are presented below:

			December 31,
			2013			2012
	Deferred tax assets:
	Deferred fee income		$	197		280
	Deferred compensation expense		3,727			3,463
	Net operating loss carryforwards		208			482
	Bad debts		20,700			20,639
	Accrued postretirement benefit cost		716			734
	Stock benefit plans		1,379			1,128
	Writedown of investment securities		5,301			6,032
	Reserve for uncollected interest		2,477			4,194
	Accrued expenses		928			890
	Pension and postretirement benefits		2,202			12,106
	Unrealized loss on the fair value of derivatives		2,813			4,527
	Marketable securities available for sale		2,079			—
	Other		758			582
			43,485			55,057
	Deferred tax liabilities:
	Pension expense		4,827			5,606
	Marketable securities available for sale		—			10,098
	Purchase accounting		1,723			1,808
	Intangible asset		19,438			17,958
	Mortgage servicing rights		677			1,151
	Fixed assets		7,409			7,814
	Other		474			821
			34,548			45,256
Net deferred tax asset/ (liability)		$	8,937		9,801

We have determined that no valuation allowance is necessary for the deferred tax assets because it is more likely than not that these assets will be realized through carry-back to taxable income in prior years, future reversals of existing temporary differences, and through future taxable income. We will continue to review the criteria related to the recognition of deferred tax assets on a regular basis.

Under provisions of the Internal Revenue Code (“IRC”), Northwest has approximately $594,000 of federal net operating losses, which expire in 2026 and 2027. These net operating losses, which were acquired as part of previous acquisitions, are subject to annual carry-forward limitations imposed by IRC section 382. We believe the limitations will not prevent the carry-forward benefits from being utilized.

We utilize a comprehensive model to recognize, measure, present and disclose in our financial statements uncertain tax positions that the company has taken or expects to take on a tax return. At December 31, 2013 there were no unrecognized tax benefits that, if recognized, would favorably affect the effective income tax rate. We recognize interest accrued and penalties (if any) related to unrecognized tax benefits in income tax expense. During the year ended December 31, 2013, we did not accrue any interest. At December 31, 2013, we had no amount accrued for interest or the payment of penalties.

We are subject to routine audits of our tax returns by the Internal Revenue Service as well as all states in which we conduct business. We are subject to audit by the Internal Revenue Service for the tax periods ended December 31, 2013, 2012, 2011 and 2010 and subject to audit by any state in which we conduct business for the tax periods ended December 31, 2013, 2012, 2011 and 2010.

Shareholders_Equity

Shareholders' Equity	12 Months Ended
Shareholders' Equity	Dec. 31, 2013
Shareholders' Equity	'
Shareholders' Equity	'
	(12) Shareholders’ Equity

	Retained earnings are partially restricted in connection with regulations related to the insurance of deposit accounts, which requires Northwest to maintain certain statutory reserves. Northwest may not pay dividends on or repurchase any of its common stock if the effect thereof would reduce retained earnings below the level of adequate capitalization as defined by federal and state regulators.

	In tax years prior to fiscal 1997, Northwest was permitted, under the IRC, to deduct an annual addition to a reserve for bad debts in determining taxable income, subject to certain limitations. Bad debt deductions for income tax purposes are included in taxable income of later years only if the bad debt reserve is used subsequently for purposes other than to absorb bad debt losses. Because Northwest does not intend to use the reserve for purposes other than to absorb losses, no deferred income taxes have been provided prior to fiscal 1987. Retained earnings at December 31, 2013 and 2012 include approximately $39.1 million representing such bad debt deductions for which no deferred income taxes have been provided.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2013
Earnings Per Share	'
Earnings Per Share	'
	(13) Earnings Per Share

	Basic earnings per common share (EPS) is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, without considering any dilutive items. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in our earnings. All stock options outstanding during the year ended December 31, 2013 were included in the computation of diluted earnings per share because the stock options’ exercise price was less than the average market price of the common shares of $13.25. For the years ended December 31, 2012 and 2011, there were 3,101,881 and 2,606,398 options outstanding, respectively, with a weighted average strike price of $12.28 and $12.32 per share, respectively, that were excluded from the calculation of earnings per share because the stock options exercise price was greater than the average market price of the common shares of $12.11 and $12.16, respectively. The computation of basic and diluted earnings per share for the years ended December 31, 2013, 2012 and 2011 follows:

		Years ended December 31,
		2013		2012	2011
	Net income available to common shareholders	$	66,739	63,560	64,151

	Weighted average common shares outstanding	90,626		93,913	99,802
	Dilutive potential shares due to effect of stock options	845		288	376
	Total weighted average common shares and dilutive potential shares	$	91,471	94,201	100,178
	Basic earnings per share:	$	0.74	0.68	0.64
	Diluted earnings per share:	$	0.73	0.68	0.64

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2013
Employee Benefit Plans	'
Employee Benefit Plans	'
	(14) Employee Benefit Plans

	(a) *Pension Plans*

	We maintain noncontributory defined benefit pension plans covering substantially all employees and members of our board of directors. Retirement benefits are based on certain compensation levels, age, and length of service. Contributions are based on an actuarially determined amount to fund not only benefits attributed to service to date but also for those expected to be earned in the future. In addition, we have an unfunded Supplemental Executive Retirement Plan (“SERP”) to compensate those executive participants eligible for the defined benefit pension plan whose benefits are limited by Section 415 of the IRC.

	We also sponsor a retirement savings plan in which substantially all employees participate. We provide a matching contribution of 50% of each employee’s contribution to a maximum of 6% of the employee’s compensation.

	Total expense for all retirement plans, including defined benefit pension plans, was approximately $4.1 million, $9.3 million and $7.0 million, for the years ended December 31, 2013, 2012 and 2011, respectively.

	Components of net periodic pension cost and other amounts recognized in other comprehensive income:

	The following table set forth the net periodic pension cost for the defined benefit pension plans for the years ended December 31, 2013, 2012 and 2011:

			Years ended December 31,
			2013			2012		2011
	Service cost		$	4,551		7,431		5,713
	Interest cost		5,203			5,729		5,452
	Expected return on plan assets		(8,551		)	(7,793	)	(6,009	)
	Net amortization and deferral		1,356			2,600		516
	Net periodic pension cost		$	2,559		7,967		5,672

	The following table sets forth other changes in the defined benefit pension plans’ plan assets and benefit obligations recognized in other comprehensive income:

			Years ended December 31,
			2013			2012		2011
	Net loss/ (gain)		$	(27,568	)	11,167		29,319
	Prior service cost (credit)		(14		)	(26,919	)	—
	Amortization of prior service cost		2,321			160		160
	Total recognized in other comprehensive income		$	(25,261	)	(15,592	)	29,479
	Total recognized in net periodic pension cost and other comprehensive income/ (loss)		$	(22,702	)	(7,625	)	35,151

	The estimated net loss and prior service credit for the defined benefit pension plan that will be amortized from accumulated other comprehensive income into net periodic cost over the next year is $1.4 million and $(2.3) million, respectively.

	The following table sets forth information for the defined benefit pension plans’ funded status at December 31, 2013 and 2012:

			December 31,
			2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year		$	129,802		$	131,927
	Service cost		4,551			7,431
	Interest cost		5,203			5,729
	Amendments (1)		(14		)	(26,919		)
	Actuarial (gain)/ loss		(14,422		)	14,527
	Benefits paid		(3,353		)	(2,893		)
	Benefit obligation at end of year		$	121,767		129,802

	Change in plan assets:
	Fair value of plan assets at beginning of year		115,489			105,159
	Actual return on plan assets		18,020			8,393
	Employer contributions		335			4,830
	Benefits paid		(3,353		)	(2,893		)
	Fair value of plan assets at end of period		$	130,491		115,489
	Funded status at end of year		$	8,724		(14,313		)



	(1) The Retirement Plan was amended to freeze all benefits earned through March 31, 2013 based on the plan formula using years of service and average monthly compensation as of March 31, 2013. The amendments also provide that, for service commencing January 1, 2013, benefits will be earned equal to 1% of career average pay for each year that a participant completes at least 1,000 hours of service. Also, effective April 1, 2013, participants who are eligible to receive required minimum distributions due to attaining age 70 ½ will be required to begin receiving benefits even though they remain employed by us.

	The following table sets forth the assumptions used to develop the net periodic pension cost:

			Years ended December 31,
			2013		2012		2011
Discount rate		4.06	%	4.39	%	5.57	%
Expected long-term rate of return on assets		7.5	%	7.5	%	7.5	%
Rate of increase in compensation levels		3	%	3	%	3	%

The following table sets forth the assumptions used to determine benefit obligations at the end of each period:

		Years ended December 31,
		2013		2012		2011
Discount rate		4.86	%	4.06	%	4.39	%
Expected long-term rate of return on assets		7.5	%	7.5	%	7.5	%
Rate of increase in compensation levels		3	%	3	%	3	%

The expected long-term rate of return on assets is based on the expected return of each of the asset categories, weighted based on the median of the target allocation for each category. We use the Citigroup Pension Liability Index rates matching the duration of our benefit payments as of the measurement date to determine the discount rate.

The accumulated benefit obligation for the funded defined benefit pension plan was $116.8 million, $124.5 million and $102.4 million at December 31, 2013, 2012 and 2011, respectively. The accumulated benefit obligation for all unfunded defined benefit plans was $5.0 million, $5.1 million and $4.9 million at December 31, 2013, 2012 and 2011, respectively.

The following table sets forth certain information related to our pension plans:

		December 31,
		2013			2012
Projected benefit obligation		$	121,767		129,802
Accumulated benefit obligation		121,767			129,599
Fair value of plan assets		130,491			115,489


We do not anticipate making a contribution to our defined benefit pension plan during the year ending December 31, 2014.

The investment policy as established by the Plan Administrative Committee, to be followed by the Trustee, is to invest assets based on the target allocations shown in the table below. To meet target allocation ranges set forth by the Plan Administrative Committee, periodically, the assets are reallocated by the Trustee. The investment policy is reviewed periodically to determine if the policy should be changed. Pension assets are conservatively invested with the goal of providing market or better returns with below market risks. Assets are invested in a balanced portfolio composed primarily of equities, fixed income, and cash or cash equivalent investments. The Trustee tries to maintain an approximate asset mix position of 30% to 60% equities and 20% to 50% bonds.

A maximum of 10% may be invested in any one stock, including the stock of Northwest Bancshares, Inc. The objective of holding equity securities is to provide capital appreciation consistent with the ownership of the common stocks of medium to large companies. Acceptable bond investments are direct or agency obligations of the U.S. Government or investment grade corporate bonds. The average maturity of the bond portfolio shall not exceed 10 years.

The following table sets forth the weighted average asset allocation of defined benefit plans:

		Target		December 31,
		Allocation		2013		2012
Debt securities		20 – 50%		20	%	25	%
Equity securities		30 – 60%		66	%	57	%
Other		5 – 50%		14	%	18	%
Total				100	%	100	%

All of the assets held by the defined benefit pension plan are measured and recorded at estimated fair value on our balance sheet on a recurring basis as Level 1 assets, as defined by the fair value hierarchy defined in note 15.

The following table sets forth the pension plan assets as of December 31, 2013 and 2012:

		December 31,
		2013			2012
Mutual funds — debt		$	25,708		29,057
Mutual funds — equity		86,300			65,346
Cash		18,483			21,086


The benefits expected to be paid in each year from 2014 to 2018 are $3.7 million, $3.9 million, $4.4 million, $4.7 million and $5.1 million, respectively. The aggregate benefits expected to be paid in the five years from 2019 to 2023 are $30.8 million. The expected benefits to be paid are based on the same assumptions used to measure our benefit obligations at December 31, 2013 and include estimated future employee service.

(b) *Postretirement Healthcare Plan*

In addition to pension benefits, we provide postretirement healthcare benefits for certain employees who were employed as of October 1, 1993 and were at least 55 years of age on that date. We use the accrual method of accounting for postretirement benefits other than pensions.

Components of net periodic benefit cost and other amounts recognized in other comprehensive income:

The following table sets forth the net periodic benefit cost for the postretirement healthcare benefits plan for the years ended December 31, 2013, 2012 and 2011:

		Years ended December 31,
		2013			2012		2011
Service cost		$	—		—		—
Interest cost		63			66		86
Amortization of net loss		53			50		52
Net period benefit cost		$	116		116		138

The following table sets forth other changes in the postretirement healthcare plan’s plan assets and benefit obligations recognized in other comprehensive income:

		Years ended December 31,
		2013			2012		2011
Net loss/ (gain)		$	(136	)	64		(26	)
Total recognized in other comprehensive income		$	(136	)	64		(26	)
Total recognized in net periodic benefit cost and other comprehensive income		$	(20	)	180		112

The estimated net loss for the postretirement healthcare benefit plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next year is $48,000.

The following table sets forth the funded status of the postretirement healthcare benefit plan at December 31, 2013 and 2012:

		December 31,
		2013			2012
Change in benefit obligation:
Benefit obligation at beginning of year		$	1,620		1,588
Service cost		—			—
Interest cost		63			66
Actuarial (gain)/ loss		(83		)	114
Benefits paid		(175		)	(148	)
Benefit obligation at end of year		$	1,425		1,620

Change in plan assets:
Fair value of plan assets at beginning of year		—			—
Employer contributions		176			148
Benefits paid		(176		)	(148	)
Fair value of plan assets at end of year		$	—		—
Funded status at year end		$	(1,425	)	(1,620	)

The assumptions used to develop the preceding information for postretirement healthcare benefits are as follows:

		Years ended December 31,
		2013			2012		2011
Discount rate		4.06		%	4.39	%	5.57	%
Monthly cost of healthcare insurance per beneficiary (1)		$	351		327		320
Annual rate of increase in healthcare costs		4		%	4	%	4	%



(1) Not in thousands

If the assumed rate of increase in healthcare costs was increased by one percentage point to 5% from the level of 4% presented above, the interest cost component of net periodic postretirement healthcare benefit cost would increase by $8,000 and the accumulated postretirement benefit obligation for healthcare benefits would increase by $57,000.

The following table sets forth information for plans with an accumulated benefit obligation in excess of plan assets:

		December 31,
		2013			2012
Projected benefit obligation		$	1,425		1,620
Accumulated benefit obligation		1,425			1,620
Fair value of plan assets		—			—


(c) *Employee Stock Ownership Plan*

We have a leveraged employee stock ownership plan (ESOP) for employees who have attained age 21 and who have completed a 12-month period of employment during which they worked at least 1,000 hours. Northwest is expected to make annual cash contributions to the ESOP until 2029 when the loan matures. At December 31, 2013, the loan balance was $24.4 million.

ESOP compensation expense was $1.7 million for the year ended December 31, 2013, and $1.5 million for the years ended December 31, 2012 and 2011.

Shares of common stock are held by the ESOP and will be allocated to eligible participants annually based upon a percentage of each participant’s eligible compensation. Shares are scheduled for release as the loan is repaid based on the interest method. The amortization schedule calls for 126,280 shares to be released each December 31. At December 31, 2013, 2,020,490 shares of common stock remained unallocated. The fair value of unallocated common stock held by the ESOP at December 31, 2013 was $29.9 million.

Compensation expense related to the ESOP will be recognized at an amount equal to the number of common shares committed to be released by the ESOP to participants’ accounts multiplied by the average fair value of the common stock during the reporting period. The difference between the fair value of the shares of the common stock committed to be allocated by the ESOP to participants’ accounts for the period and the average cost of those common shares is recorded as an adjustment to either additional paid-in capital or retained earnings.

(d) *Common Stock Awards*

On April 20, 2011, we established the Northwest Bancshares, Inc. 2011 Equity Incentive Plan with 2,806,233 common shares authorized. On May 18, 2011, we awarded employees 1,165,949 common shares and outside directors 108,000 common shares with a grant date fair value of $12.34 per share (total market value of $15.7 million at issuance). On May 23, 2012, we awarded employees 239,077 common shares and outside directors 24,300 common shares with a grant date fair value of $11.64 per share (total market value of $3.1 million at issuance). On May 15, 2013, we awarded employees 240,700 common shares and outside directors 29,700 common shares with a grant date fair value of $12.55 per share (total market value of $3.4 million at issuance). Total common shares forfeited from the 2011 plan were 68,079, of which, 20,945 shares were forfeited during the year ended December 31, 2013. Forfeited shares may be awarded to other eligible recipients in future grants until the plan termination date in 2021. Common shares vest over a ten-year period with the first vesting occurring on the grant date. As of December 31, 2013, 30% of the 2011 issuances have vested, 20% of the 2012 issuances have vested and 10% of the 2013 issuances have vested. Once shares have vested, they are no longer restricted. Compensation expense, in the amount of the fair market value of the common stock at the date of the grant, will be recognized pro rata over the periods in which the shares vest. While restricted, the recipients are entitled to all shareholder rights, except that the shares may not be sold, pledged, or otherwise disposed of and are required to be held in a trust.

(e) *Stock Option Plans*

On May 21, 2008, we established the 2008 Stock Option Plan. This Plan authorized the grant of stock options and limited stock rights for 3,937,500 shares of our common stock. On January 19, 2011, we granted employees 515,293 stock options and outside directors 60,000 stock options with an exercise price of $12.12 per share. On April 20, 2011, we granted an outside director 30,000 stock options with an exercise price of $12.17 per share. These options are exercisable for a period of ten years from the grant date with each recipient vesting over a seven year period, with the first vesting date being one year from the grant date. On April 20, 2011, we established the Northwest Bancshares, Inc. 2011 Equity Incentive Plan, which authorizes the granting of 7,015,583 stock options. On May 18, 2011, we granted employees 2,331,898 stock options and outside directors 270,000 stock options with an exercise price of $12.32 per share. On May 23, 2012, we granted employees 508,573 stock options and outside directors 64,800 stock options with an exercise price of $11.70 per share. On May 15, 2013, we granted employees 511,100 stock options and outside directors 79,200 stock options with an exercise price of $12.44 per share. Awarded stock options vest over a ten-year period with the first vesting occurring on the grant date with a ten year exercise period from the grant date.

The following table summarizes the activity in our option plans during the years ended December 31, 2013, 2012 and 2011 (Amounts in this table are not in thousands):

		Years ended December 31,
		2013					2012				2011
		Number		Weighted			Number		Weighted		Number		Weighted
				average					average				average
				exercise					exercise				exercise
				price					price				price

Balance at beginning of year		7,044,753		$	11.21		6,902,247		$	11	4,184,873		$	9.56
Granted (1)		590,300		12.44			573,373		11.7		3,207,191		12.28
Exercised (2)		(727,415	)	10.13			(323,790	)	7.48		(380,778	)	6.06
Forfeited		(91,344	)	11.82			(107,077	)	11.31		(109,039	)	11.21
Balance at end of year		6,816,294		$	11.46		7,044,753		$	11.21	6,902,247		$	11
Exercisable at end of year		2,916,621		$	10.97		2,959,834		$	10.61	2,631,198		$	10.11


(1) Weighted average fair value of options at grant date: $1.03, $1.23 and $2.16, respectively.
(2) The total intrinsic value of options exercised was $2.7 million, $1.5 million and $2.3 million, respectively.

The aggregate intrinsic value of all options expected to vest and fully vested options at December 31, 2013 is $11.5 million and $11.1 million, respectively. The following table summarizes the number of options outstanding, number of options exercisable, and weighted average remaining life of all option grants as of December 31, 2013:

		Exercise		Exercise		Exercise		Exercise		Exercise	Exercise		Exercise
		price		price		price		price		price	price		price
		$7.48		$9.79		$9.86		$10.19		$11.12	$11.33		$11.49
Options outstanding:
Number of options		391,343		413,379		213,106		338,060		345,618	252,220		482,244
Weighted average remaining contract life (years)		5.25		5		2.25		1.25		4.25	1		6.25
Options exercisable:
Number of options		183,316		272,905		213,106		338,060		345,618	252,220		174,501
Weighted average remaining term - vested (years)		5.25		5		2.25		1.25		4.25	1		6.25

		Exercise		Exercise		Exercise		Exercise		Exercise	Exercise		Exercise		Total
		price		price		price		price		price	price		price		$11.46
		$11.51		$11.70		$12.12		$12.17		$12.32	$12.44		$12.48
Options outstanding:
Number of options		301,077		549,955		524,879		21,500		2,392,863	585,550		4,500		6,816,294
Weighted average remaining contract life (years)		3.25		8.5		7.25		7.5		7.5	9.5		3.5		6.29
Options exercisable:
Number of options		301,077		91,257		114,176		71		571,534	54,280		4,500		2,916,621
Weighted average remaining term - vested (years)		3.25		8.5		7.25		7.5		7.5	9.5		3.5		4.39

Disclosures_About_Fair_Value_o

Disclosures About Fair Value of Financial Instruments	12 Months Ended
Disclosures About Fair Value of Financial Instruments	Dec. 31, 2013
Disclosures About Fair Value of Financial Instruments	'
Disclosures About Fair Value of Financial Instruments	'
	(15) Disclosures About Fair Value of Financial Instruments

	We are required to disclose fair value information about financial instruments whether or not recognized in the consolidated statement of financial condition. Fair value information of certain financial instruments and all nonfinancial instruments is not required to be disclosed. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

	Financial assets and liabilities recognized or disclosed at fair value on a recurring basis and certain financial assets and liabilities on a non-recurring basis are accounted for using a three-level hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. This hierarchy gives the highest priority to quoted prices with readily available independent data in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable market inputs (Level 3). When various inputs for measurement fall within different levels of the fair value hierarchy, the lowest level input that has a significant impact on fair value measurement is used.

	Financial assets and liabilities are categorized based upon the following characteristics or inputs to the valuation techniques:

	· Level 1 — Financial assets and liabilities for which inputs are observable and are obtained from reliable quoted prices for identical assets or liabilities in actively traded markets. This is the most reliable fair value measurement and includes, for example, active exchange-traded equity securities.

	· Level 2 — Financial assets and liabilities for which values are based on quoted prices in markets that are not active or for which values are based on similar assets or liabilities that are actively traded. Level 2 also includes pricing models in which the inputs are corroborated by market data, for example, matrix pricing.

	· Level 3 — Financial assets and liabilities for which values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. Level 3 inputs include the following:

	· Quotes from brokers or other external sources that are not considered binding;

	· Quotes from brokers or other external sources where it cannot be determined that market participants would in fact transact for the asset or liability at the quoted price;

	· Quotes and other information from brokers or other external sources where the inputs are not deemed observable.

	We are responsible for the valuation process and as part of this process may use data from outside sources in establishing fair value. We perform due diligence to understand the inputs used or how the data was calculated or derived. We also corroborate the reasonableness of external inputs in the valuation process.

	The carrying amounts reported in the consolidated statement of financial condition approximate fair value for the following financial instruments: cash on hand, interest-earning deposits in other institutions, federal funds sold and other short-term investments, accrued interest receivable, accrued interest payable, and marketable securities available-for-sale.

	Marketable Securities

	Where available, market values are based on quoted market prices, dealer quotes, and prices obtained from independent pricing services.

	Debt securities — available for sale - Generally, debt securities are valued using pricing for similar securities, recently executed transactions and other pricing models utilizing observable inputs. The valuation for most debt securities is classified as Level 2. Securities within Level 2 include corporate bonds, municipal bonds, mortgage-backed securities and US government obligations. Certain debt securities which were AAA rated at purchase do not have an active market and as such we have used an alternative method to determine the fair value of these securities. The fair value has been determined using a discounted cash flow model using market assumptions, which generally include cash flow, collateral and other market assumptions. As such, securities which otherwise would have been classified as level 2 securities if an active market for those assets or similar assets existed are included herein as level 3 assets. Other debt securities, pooled trust preferred securities rated below AA at purchase, have a fair value based on a discounted cash flow model using similar assumptions to those noted above and accordingly are classified as level 3 assets.

	Equity securities — available for sale - Level 1 securities include publicly traded securities valued using quoted market prices. We consider the financial condition of the issuer to determine if the securities have indicators of impairment.

	Debt securities — held to maturity — The fair value of debt securities held to maturity is determined in the same manner as debt securities available for sale.

	Loans Receivable

	Loans with comparable characteristics including collateral and re-pricing structures are segregated for valuation purposes. Each loan pool is separately valued utilizing a discounted cash flow analysis. Projected monthly cash flows are discounted to present value using a market rate for comparable loans, which is not considered an exit price. Characteristics of comparable loans include remaining term, coupon interest, and estimated prepayment speeds. Delinquent loans are separately evaluated given the impact delinquency has on the projected future cash flow of the loan including the approximate discount or market rate, which is not considered an exit price.

	FHLB Stock

	Due to the restrictions placed on the transferability of FHLB stock it is not practical to determine the fair value.

	Deposit Liabilities

	The estimated fair value of deposits with no stated maturity, which includes demand deposits, money market, and other savings accounts, is the amount payable on demand. Although market premiums paid for depository institutions reflect an additional value for these low-cost deposits, adjusting fair value for any value expected to be derived from retaining those deposits for a future period of time or from the benefit that results from the ability to fund interest-earning assets with these deposit liabilities is prohibited. The fair value estimates of deposit liabilities do not include the benefit that results from the low-cost funding provided by these deposits compared to the cost of borrowing funds in the market. Fair values for time deposits are estimated using a discounted cash flow calculation that applies contractual cost currently being offered in the existing portfolio to current market rates being offered locally for deposits of similar remaining maturities. The valuation adjustment for the portfolio consists of the present value of the difference of these two cash flows, discounted at the assumed market rate of the corresponding maturity.

	Borrowed Funds

	Fixed rate advances are valued by comparing their contractual cost to the prevailing market cost. The carrying amount of repurchase agreements approximates fair value.

	Junior Subordinated Debentures

	The fair value of junior subordinated debentures is calculated using the discounted cash flows at the prevailing rate of interest.

	Cash flow hedges — Interest rate swap agreements (“swaps”)

	The fair value of the swaps is the amount we would have expected to pay to terminate the agreements and is based upon the present value of the expected future cash flows using the LIBOR swap curve, the basis for the underlying interest rate.

	Off-Balance Sheet Financial Instruments

	These financial instruments generally are not sold or traded, and estimated fair values are not readily available. However, the fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements. Commitments to extend credit are generally short-term in nature and, if drawn upon, are issued under current market terms. At December 31, 2013 and 2012, there was no significant unrealized appreciation or depreciation on these financial instruments.

	The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the consolidated statement of financial condition at December 31, 2013 and 2012:

		December 31, 2013
		Carrying		Estimated
		amount		fair value		Level 1	Level 2		Level 3
Financial assets:
Cash and cash equivalents		$	391,905	391,905		391,905	—		—
Securities available-for-sale		1,016,767		1,016,767		9,850	994,666		12,251
Securities held-to-maturity		121,366		124,061		—	124,061		—
Loans receivable, net		5,734,943		6,026,711		221	—		6,026,490
Accrued interest receivable		21,821		21,821		21,821	—		—
FHLB Stock		43,715		43,715		—	—		—
Total financial assets		$	7,330,517	7,624,980		423,797	1,118,727		6,038,741

Financial liabilities:
Savings and checking accounts		$	4,001,482	4,001,482		4,001,482	—		—
Time deposits		1,667,397		1,699,937		—	—		1,699,937
Borrowed funds		881,645		896,408		156,198	—		740,210
Junior subordinated debentures		103,094		111,220		—	—		111,220
Cash flow hedges - swaps		8,037		8,037		—	8,037		—
Accrued interest payable		888		888		888	—		—
Total financial liabilities		$	6,662,543	6,717,972		4,158,568	8,037		2,551,367

		December 31, 2012
		Carrying		Estimated
		amount		fair value		Level 1	Level 2		Level 3
Financial assets:
Cash and cash equivalents		$	451,704	451,704		451,704	—		—
Securities available-for-sale		1,079,074		1,079,074		19,304	1,048,651		11,119
Securities held-to-maturity		155,081		161,969		—	161,969		—
Loans receivable, net		5,629,261		5,952,688		15,441	—		5,937,247
Accrued interest receivable		23,313		23,313		23,313	—		—
FHLB Stock		46,834		46,834		—	—		—
Total financial assets		$	7,385,267	7,715,582		509,762	1,210,620		5,948,366

Financial liabilities:
Savings and checking accounts		$	3,878,511	3,878,511		3,878,511	—		—
Time deposits		1,886,089		1,927,844		—	—		1,927,844
Borrowed funds		860,047		935,384		164,531	—		770,853
Junior subordinated debentures		103,094		116,066		—	—		116,066
Cash flow hedges - swaps		12,932		12,932		—	12,932		—
Accrued interest payable		888		888		888	—		—
Total financial liabilities		$	6,741,561	6,871,625		4,043,930	12,932		2,814,763

Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The preceding methods and assumptions were used in estimating the fair value of financial instruments at December 31, 2013 and 2012. There were no transfers of financial instruments between Level 1 and Level 2 during the years ended December 31, 2013 and 2012.

The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2013:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

Equity securities		$	9,850	—		—	9,850

Debt securities:
U.S. government and agencies		—		32		—	32
Government sponsored enterprises		—		316,057		—	316,057
States and political subdivisions		—		92,578		—	92,578
Corporate		—		8,925		12,251	21,176
Total debt securities		—		417,592		12,251	429,843

Residential mortgage-backed securities:
GNMA		—		32,263		—	32,263
FNMA		—		85,665		—	85,665
FHLMC		—		51,076		—	51,076
Non-agency		—		667		—	667
Collateralized mortgage obligations:
GNMA		—		11,494		—	11,494
FNMA		—		168,661		—	168,661
FHLMC		—		210,029		—	210,029
SBA		—		12,569		—	12,569
Non-agency		—		4,650		—	4,650
Total mortgage-backed securities		—		577,074		—	577,074

Interest rate swaps		—		(8,037	)	—	(8,037	)

Total assets and liabilities		$	9,850	986,629		12,251	1,008,730

The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2012:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

Equity securities		$	19,304	—		—	19,304

Debt securities:
U.S. government and agencies		—		40		—	40
Government sponsored enterprises		—		238,314		—	238,314
States and political subdivisions		—		134,208		—	134,208
Corporate		—		11,584		11,119	22,703
Total debt securities		—		384,146		11,119	395,265

Residential mortgage-backed securities:
GNMA		—		41,182		—	41,182
FNMA		—		106,863		—	106,863
FHLMC		—		52,559		—	52,559
Non-agency		—		695		—	695
Collateralized mortgage obligations:
GNMA		—		22,963		—	22,963
FNMA		—		189,364		—	189,364
FHLMC		—		228,631		—	228,631
SBA		—		15,775		—	15,775
Non-agency		—		6,473		—	6,473
Total mortgage-backed securities		—		664,505		—	664,505

Interest rate swaps		—		(12,932	)	—	(12,932	)

Total assets and liabilities		$	19,304	1,035,719		11,119	1,066,142

The table below presents a reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the year ended December 31, 2013 and 2012:

		December 31,
		2013				2012
		Equity		Debt		Equity	Debt
		securities		securities		securities	securities

Beginning balance January 1,		$	—	11,119		—	9,657

Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation):
Included in net income as OTTI		—		(713	)	—	—
Included in other comprehensive income		—		1,845		—	1,462

Purchases		—		—		—	—
Sales		—		—		—	—
Transfers into Level 3		—		—		—	—
Transfers out of Level 3		—		—		—	—

Ending balance December 31,		$	—	12,251		—	11,119

Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans held for sale, loans measured for impairment, real estate owned, and mortgage servicing rights.

The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2013:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

Loans evaluated for impairment		$	—	—		62,730	62,730
Real estate owned		—		—		18,203	18,203

Total assets		$	—	—		80,933	80,933

The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2012:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

Loans evaluated for impairment		$	—	—		87,087	87,087
Real estate owned		—		—		26,165	26,165

Total assets		$	—	—		113,252	113,252

Loans measured for impairment — A loan is considered to be impaired as described in Footnote 1 (f). We classify impaired loans as nonrecurring Level 3.

Real estate owned — Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the related loan balance or fair value, less estimated disposition costs, with the fair value being determined by appraisal. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or fair value, less estimated disposition costs. We classify real estate owned as nonrecurring Level 3.

The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at December 31, 2013:

		Fair value		Valuation		Significant unobservable	Range (weighted average)
		Fair value		techniques		inputs	Range (weighted average)
Debt securities		$	12,251	Discounted cash		Discount margin	0.35% to 2.10% (0.69)%
				flow		Default rates	1.00%
						Prepayment speeds	1.00% annually

Loans measured for impairment		62,730		Appraisal		Estimated costs to sell	10%
				value (1)

Real estate owned		18,203		Appraisal		Estimated costs to sell	10%
				value (1)



(1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

The significant unobservable inputs used in the fair value measurement of our debt securities are discount margins, default rates and prepayment speeds. Significant increases in any of those rates would result in a significantly lower fair value measurement.

Regulatory_Capital_Requirement

Regulatory Capital Requirements	12 Months Ended
Regulatory Capital Requirements	Dec. 31, 2013
Regulatory Capital Requirements	'
Regulatory Capital Requirements	'
	(16) Regulatory Capital Requirements

	Our banking subsidiary is subject to various regulatory capital requirements administered by the federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory — and possibly additional discretionary — actions by the regulators that, if undertaken, could have a direct material effect on our financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, specific capital guidelines that involve quantitative measures of assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices must be met. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors.

	Quantitative measures established by regulation to ensure capital adequacy require our banking subsidiary to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined in the regulations) to risk-weighted assets (as defined) and of Tier I capital to average assets (as defined). As of December 31, 2013 and 2012, our banking subsidiary exceeded all capital adequacy requirements to which they were subject.

	As of December 13, 2013, the most recent notification from the FDIC categorized Northwest Savings Bank as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized,” the bank must maintain total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios as set forth in the table. There are no conditions or events since that notification that management believes have changed the bank’s categories. At December 31, 2013, the maximum amount available for dividend payments by Northwest Savings Bank to us, while maintaining its “well capitalized” status, was approximately $47.5 million.

	The actual, required, and well capitalized levels as of December 31, 2013 and 2012 were as follows:

		At December 31, 2013
						Minimum capital			Well capitalized
		Actual				requirements (1)			requirements (1)
		Amount		Ratio		Amount	Ratio		Amount	Ratio
	Total capital (to risk weighted assts)
	Northwest Bancshares, Inc.	$	1,147,027	22.46	%	—	—		—	—
	Northwest Savings Bank	946,531		18.6	%	407,062	8	%	508,828	10	%

	Tier I capital (to risk weighted assets)
	Northwest Bancshares, Inc.	1,081,060		21.17	%	—	—		—	—
	Northwest Savings Bank	882,234		17.34	%	203,531	4	%	305,297	6	%

	Tier I capital (leverage) (to total assets)
	Northwest Bancshares, Inc.	1,081,060		13.87	%	—	—		—	—
	Northwest Savings Bank	882,234		11.42	%	309,127	4	%	386,408	5	%


		At December 31, 2012
						Minimum capital			Well capitalized
		Actual				requirements (1)			requirements (1)
		Amount		Ratio		Amount	Ratio		Amount	Ratio
	Total capital (to risk weighted assts)
	Northwest Bancshares, Inc.	$	1,117,979	21.53	%	—	—		—	—
	Northwest Savings Bank	875,676		16.94	%	413,424	8	%	516,780	10	%

	Tier I capital (to risk weighted assets)
	Northwest Bancshares, Inc.	1,050,261		20.22	%	—	—		—	—
	Northwest Savings Bank	810,727		15.69	%	206,712	4	%	310,068	6	%

	Tier I capital (leverage) (to total assets)
	Northwest Bancshares, Inc.	1,050,261		13.43	%	—	—		—	—
	Northwest Savings Bank	810,727		10.41	%	311,473	4	%	389,340	5	%



	(1) The Federal Reserve does not yet have formal capital requirements established for Savings and Loan holding companies.

Contingent_Liabilities

Contingent Liabilities	12 Months Ended
Contingent Liabilities	Dec. 31, 2013
Contingent Liabilities	'
Contingent Liabilities	'
	(17) Contingent Liabilities

	We and our subsidiaries are subject to a number of asserted and unasserted claims encountered in the normal course of business. Management believes that the aggregate liability, if any, that may result from such potential litigation will not have a material adverse effect on our financial statements. However, we cannot presently determine whether or not any claims against us will have a material adverse effect on our results of operations in any future reporting period.

Legal_Proceedings

Legal Proceedings	12 Months Ended
Legal Proceedings	Dec. 31, 2013
Legal Proceedings	'
Legal Proceedings	'
	(18) Legal Proceedings

	We establish accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated. As of December 31, 2013 we have accrued $2.3 million, this amount is based on our analysis of currently available information and is subject to significant judgment and a variety of assumptions and uncertainties. Any such accruals are adjusted thereafter as appropriate to reflect changes in circumstances. Due to the inherent subjectivity of assessments and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate loss to us from legal proceedings.

	Toth v. Northwest Savings Bank

	On May 7, 2012, Ashley Toth (“Plaintiff”) filed a putative class action complaint in the Court of Common Pleas of Allegheny County, Pennsylvania against Northwest Savings Bank (“Northwest”). Plaintiff’s complaint alleged state law claims related to Northwest’s order of posting ATM and debit card transactions and the assessment of overdraft fees on deposit customer accounts. Northwest filed preliminary objections to the putative class action complaint on June 29, 2012. On September 6, 2012, Plaintiff filed an amended putative class action complaint containing substantially the same allegations as the initial putative class action complaint. On November 5, 2012, Northwest filed preliminary objections to the amended putative class action complaint. Plaintiff filed her opposition to Northwest’s preliminary objections on December 6, 2012, and Northwest filed its reply in support of the preliminary objections on January 3, 2013. On June 25, 2013, the court entered an order, granting in part and overruling in part, Northwest’s preliminary objections.

	On November 18, 2013, the parties participated in a mediation and reached an agreement in principle, subject to the preparation and execution of a mutually acceptable settlement agreement and release, to fully, finally and completely settle, resolve, discharge and release all claims that have been or could have been asserted in the action on a class-wide basis. The proposed settlement contemplates that, in return for a full and complete release of claims by Plaintiff and the settlement class members, Northwest will create a settlement fund for distribution to the settlement class members after certain court-approved reductions, including for attorney’s fees and expenses. The proposed settlement is subject to preliminary and final court approval.

	USDA v. Kathleen M. Schwab and Brian G. Schwab v. Northwest Savings Bank

	On December 19, 2012, the Schwabs filed a Complaint against us in the Court of Common Pleas of Clarion County, Pennsylvania, No. 409-2012 to join us as an additional defendant alleging that if it is determined that the United States Department of Agriculture (“USDA”) is entitled to relief (the mortgages are reformed and corrected by the Court so as to add Brian G. Schwab’s name to the mortgages), then we are solely liable to the USDA or we are jointly liable with the Schwabs, or liable over the Schwabs, with regard to the mortgages held by the USDA. On February 1, 2013, we filed Preliminary Objections to the Complaint joining us on the grounds that the USDA’s lawsuit does not involve any claim for money. We await a decision on our Preliminary Objections. At this stage of the lawsuit, it is not yet possible to estimate potential losses, if any. Although it is not possible to predict the ultimate resolution or financial liability with respect to this litigation, management, after consultation with legal counsel, currently does not anticipate that the aggregate liability, if any, arising out of this proceeding will have a material adverse effect on our financial position, or cash flows; although, at the present time, we are not in a position to determine whether such proceeding will have a material adverse effect on our results of operations in any future quarterly reporting period.

Components_of_Accumulated_Othe

Components of Accumulated Other Comprehensive Income	12 Months Ended
Components of Accumulated Other Comprehensive Income	Dec. 31, 2013
Components of Accumulated Other Comprehensive Income	'
Components of Accumulated Other Comprehensive Income	'
	(19) Components of Accumulated Other Comprehensive Income

	The following table sets forth the components of accumulated other comprehensive income as of December 31, 2013 and 2012:

		December 31,
		2013			2012
	Unrealized gain on marketable securities available-for-sale	$	(3,233	)	15,853
	Fair value of interest rate swaps	(5,224		)	(8,405	)
	Defined benefit pension plans	(3,443		)	(18,936	)
	Accumulated other comprehensive income	$	(11,900	)	(11,488	)

	The following table shows the changes in accumulated other comprehensive income by component for the year ended December 31, 2013:

		Unrealized			Change in		Change in		Total
		gains and			fair value of		defined
		losses on			interest rate		benefit
		securities			swaps		pension plans
		available-for-
		sale
	Balance as of January 1,	$	15,853		(8,405	)	(18,936	)	(11,488	)
	Other comprehensive income before reclassification adjustments	(16,544		)	3,181		14,577		1,214
	Amounts reclassified from accumulated other comprehensive income (1), (2)	(2,542		)	—		916		(1,626	)
	Net other comprehensive income	(19,086		)	3,181		15,493		(412	)
	Balance as of December 31,	$	(3,233	)	(5,224	)	(3,443	)	(11,900	)


	(1) Consists of realized gains on securities (gain on sales of investments, net) of $4,881 and other-than-temporary-impairment losses (net impairment losses) of $(713), net of tax (income tax expense) of $1,626.
	(2) Consists of amortization of prior service cost (compensation and employee benefits) of $2,321 and amortization of net loss (compensation and employee benefits) of $(3,730), net of tax (income tax expense) of $493. See note 14.

	The following table shows the changes in accumulated other comprehensive income by component for the year ended December 31, 2012:

		Unrealized			Change in		Change in		Total
		gains and			fair value of		defined
		losses on			interest rate		benefit
		securities			swaps		pension plans
		available-for-
		sale
	Balance as of January 1,	$	14,046		(8,864	)	(28,408	)	(23,226	)
	Other comprehensive income before reclassification adjustments	2,029			459		7,750		10,238
	Amounts reclassified from accumulated other comprehensive income (1), (2)	(222		)	—		1,722		1,500
	Net other comprehensive income	1,807			459		9,472		11,738
	Balance as of December 31,	$	15,853		(8,405	)	(18,936	)	(11,488	)


	(1) Consists of realized gains on securities (gain on sales of investments, net) of $695 and other-than-temporary-impairment losses (net impairment losses) of $(331), net of tax (income tax expense) of $142.
	(2) Consists of amortization of prior service cost (compensation and employee benefits) of $160 and amortization of net loss (compensation and employee benefits) of $(2,810), net of tax (income tax expense) of $928. See note 14.

	The following table shows the changes in accumulated other comprehensive income by component for the year ended December 31, 2011:

		Unrealized			Change in		Change in		Total
		gains and			fair value of		defined
		losses on			interest rate		benefit
		securities			swaps		pension plans
		available-for-
		sale
	Balance as of January 1,	$	3,021		(6,077	)	(10,441	)	(13,497	)
	Other comprehensive income before reclassification adjustments	9,312			(2,787	)	(18,336	)	(11,811	)
	Amounts reclassified from accumulated other comprehensive income (1), (2)	1,713			—		369		2,082
	Net other comprehensive income	11,025			(2,787	)	(17,967	)	(9,729	)
	Balance as of December 31,	$	14,046		(8,864	)	(28,408	)	(23,226	)


	(1) Consists of realized losses on securities (gain on sales of investments, net) of $(1,809) and other-than-temporary-impairment losses (net impairment losses) of $(937), net of tax (income tax expense) of $1,033.
(2) Consists of amortization of prior service cost (compensation and employee benefits) of $160 and amortization of net loss (compensation and employee benefits) of $(728), net of tax (income tax expense) of $199. See note 14.

Parent_Company_Only_Financial_

Parent Company Only Financial Statements - Condensed	12 Months Ended
Parent Company Only Financial Statements - Condensed	Dec. 31, 2013
Parent Company Only Financial Statements - Condensed	'
Parent Company Only Financial Statements - Condensed	'
	(20) Parent Company Only Financial Statements - Condensed

	Statements of Financial Condition

			December 31,
			2013			2012
	Assets
	Cash and cash equivalents		$	188,775		227,327
	Marketable securities available-for-sale		8,473			17,907
	Investment in bank subsidiary		1,065,603			997,084
	Other assets		5,205			4,474
	Total assets		$	1,268,056		1,246,792

	Liabilities and Shareholders’ Equity
	Liabilities:
	Debentures payable		$	103,094		103,094
	Other liabilities		8,160			15,229
	Total liabilities		111,254			118,323
	Shareholders’ equity		1,156,802			1,128,469
	Total liabilities and shareholders’ equity		$	1,268,056		1,246,792

	Statements of Income

			Years ended December 31,
			2013			2012		2011
	Income:
	Interest income		$	1,467		1,442		1,717
	Other income		5,961			773		515
	Dividends from bank subsidiary		—			175,000		122,585
	Undistributed earnings from equity investment in bank subsidiary		66,183			(108,400	)	(55,552	)
	Total income		73,611			68,815		69,265
	Expense:
	Compensation and benefits		1,024			955		649
	Other expense		234			305		368
	Interest expense		5,444			5,717		5,699
	Total expense		6,702			6,977		6,716
	Income before income taxes		66,909			61,838		62,549
	Federal and state income taxes		170			(1,722	)	(1,602	)
	Net income		$	66,739		63,560		64,151

	Statements of Cash Flows

			Years ended December 31,
			2013			2012		2011
	Operating activities:
	Net income		$	66,739		63,560		64,151
	Adjustments to reconcile net income to net cash provided by operating activities:
	Undistributed earnings of subsidiary		(66,183		)	108,400		55,552
	Noncash stock benefit plan compensation expense		5,083			4,623		6,725
	Gain on sale of marketable securities		(5,139		)	—		—
	Net change in other assets and liabilities		(3,692		)	467		(5,692	)
	Net cash (used in)/ provided by operating activities		(3,192		)	177,050		120,736
	Investing activities:
	Net sale/ (purchase) of marketable securities		7,200			(940	)	(11,439	)
	Net cash provided by/ (used in) investing activities		7,200			(940	)	(11,439	)
	Financing activities:
	Cash dividends paid		(45,871		)	(56,862	)	(43,642	)
	Share repurchases		(4,459		)	(52,028	)	(172,690	)
	Repayment of loan to ESOP		1,152			1,116		1,081
	Proceeds from options exercised		6,618			2,131		2,030
	Net cash used in financing activities		(42,560		)	(105,643	)	(213,221	)
	Net (decrease)/ increase in cash and cash equivalents		$	(38,552	)	70,467		(103,924	)
	Cash and cash equivalents at beginning of year		227,327			156,860		260,784
Net (decrease)/ increase in cash and cash equivalents		(38,552		)	70,467		(103,924	)
Cash and cash equivalents at end of year		$	188,775		227,327		156,860

Business_Segments

Business Segments	12 Months Ended
Business Segments	Dec. 31, 2013
Business Segments	'
Business Segments	'
	(21) Business Segments

	We have identified two reportable business segments based upon the operating approach currently used by management. The Community Banking segment includes our savings bank subsidiary, Northwest Savings Bank, as well as the subsidiaries of the savings bank that provide similar products and services. The savings bank is a community-oriented institution that offers a full array of personal and business deposit and loan products, including mortgage, consumer, and commercial loans as well as trust, investment management, actuarial and benefit plan administration, and brokerage services typically offered by a full service financial institution. The Consumer Finance segment is comprised of Northwest Consumer Discount Company, a subsidiary of Northwest Savings Bank. This subsidiary compliments the services of the bank by offering personal installment loans for a variety of consumer and real estate products. This activity is funded primarily through its intercompany borrowing relationship with Allegheny Services, Inc. Net income is primarily used by management to measure segment performance. The following tables provide financial information for these segments. The All Other column represents the parent company, other nonbank subsidiaries, and elimination entries necessary to reconcile to the consolidated amounts presented in the financial statements.

	At or for the year ended	Community		Consumer	All Other (1)		Consolidated
	December 31, 2013	Banking		Finance	All Other (1)		Consolidated
	External interest income	$	291,194	20,648	1,196		313,038
	Intersegment interest income	2,691		—	(2,691	)	—
	Interest expense	56,282		2,691	2,189		61,162
	Provision for loan losses	15,206		3,313	—		18,519
	Noninterest income	59,987		1,647	5,213		66,847
	Noninterest expense	194,028		12,303	803		207,134
	Income tax expense (benefit)	24,462		1,699	170		26,331
	Net income	$	63,894	2,289	556		66,739
	Total assets	$	7,747,050	109,249	25,177		7,881,476

	At or for the year ended	Community		Consumer	All Other (1)		Consolidated
	December 31, 2012	Banking		Finance	All Other (1)		Consolidated
	External interest income	$	314,514	22,348	1,176		338,038
	Intersegment interest income	2,965		—	(2,965	)	—
	Interest expense	69,976		2,965	2,258		75,199
	Provision for loan losses	22,944		3,394	—		26,338
	Noninterest income	56,684		2,132	88		58,904
	Noninterest expense	191,994		12,678	805		205,477
	Income tax expense (benefit)	25,847		2,243	(1,722	)	26,368
	Net income	$	63,402	3,200	(3,042	)	63,560
	Total assets	$	7,786,529	117,094	38,977		7,942,600

	At or for the year ended	Community		Consumer	All Other (1)		Consolidated
	December 31, 2011	Banking		Finance	All Other (1)		Consolidated
	External interest income	$	336,379	21,799	1,050		359,228
	Intersegment interest income	3,058		—	(3,058	)	—
	Interest expense	87,850		3,058	1,893		92,801
	Provision for loan losses	31,050		3,120	—		34,170
	Noninterest income	56,412		2,513	53		58,978
	Noninterest expense	187,262		12,331	634		200,227
	Income tax expense (benefit)	26,052		2,407	(1,602	)	26,857
	Net income	$	63,635	3,396	(2,880	)	64,151
	Total assets	$	7,802,327	117,068	38,310		7,957,705


	(1) Eliminations consist of intercompany interest income and interest expense.

Guaranteed_Preferred_Beneficia

Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements	12 Months Ended
	Dec. 31, 2013
Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements	'
Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements	'
	(22) Guaranteed Preferred Beneficial Interests in Company’s Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements

	We have two statutory business trusts: Northwest Bancorp Capital Trust III, a Delaware statutory business trust, and Northwest Bancorp Statutory Trust IV, a Connecticut statutory business trust (the Trusts). These trusts exist solely to issue preferred securities to third parties for cash, issue common securities to the Company in exchange for capitalization of the Trusts, invest the proceeds from the sale of trust securities in an equivalent amount of debentures of the Company, and engage in other activities that are incidental to those previously listed. The aforementioned trusts are not consolidated. Northwest Bancorp Capital Trust III issued 50,000 cumulative trust preferred securities in a private transaction to a pooled investment vehicle on December 5, 2005 (liquidation value of $1,000 per preferred security or $50,000,000) with a stated maturity of December 30, 2035 and a floating rate of interest, which is reset quarterly, equal to three-month LIBOR plus 1.38%. Northwest Bancorp Statutory Trust IV issued 50,000 cumulative trust preferred securities in a private transaction to a pooled investment vehicle on December 15, 2005 (liquidation value of $1,000 per preferred security or $50,000,000) with a stated maturity of December 15, 2035 and a floating rate of interest, which is reset quarterly, equal to three-month LIBOR plus 1.38%. As the shareholders of the trust preferred securities are the primary beneficiaries of these trusts, the Trusts are not consolidated in our financial statements.

	The Trusts have invested the proceeds of the offerings in junior subordinated deferrable interest debentures issued by the Company. The structure of these debentures mirrors the structure of the trust-preferred securities. Northwest Bancorp Capital Trust III holds $51,547,000 of the Company’s junior subordinated debentures due December 30, 2035 with a floating rate of interest, reset quarterly, of three-month LIBOR plus 1.38%. The rate in effect at December 31, 2013 was 1.63%. Northwest Bancorp Statutory Trust IV holds $51,547,000 of the Company’s junior subordinated debentures due December 15, 2035 with a floating rate of interest, reset quarterly, of three-month LIBOR plus 1.38%. The rate in effect at December 31, 2013 was 1.62%.

	Cash distributions on the trust securities are made on a quarterly basis to the extent interest on the debentures is received by the Trusts. We have the right to defer payment of interest on the subordinated debentures at any time, or from time-to-time, for periods not exceeding five years. If interest payments on the subordinated debentures are deferred, the distributions on the trust securities also are deferred. To date there have been no interest deferrals. Interest on the subordinated debentures and distributions on the trust securities is cumulative. Our obligation constitutes a full, irrevocable, and unconditional guarantee on a subordinated basis of the obligations of the trust under the preferred securities.

	The Trusts must redeem the preferred securities when the debentures are paid at maturity or upon an earlier redemption of the debentures to the extent the debentures are redeemed. All or part of the debentures may be redeemed at any time on or after December 31, 2010. Also, the debentures may be redeemed at any time if existing laws or regulations, or the interpretation or application of these laws or regulations, change causing:

	· the interest on the debentures to no longer be deductible by the Company for federal income tax purposes;

	· the trust to become subject to federal income tax or to certain other taxes or governmental charges;

	· the trust to register as an investment company; and

	· the preferred securities do not qualify as Tier I capital.

	We may, at any time, dissolve any of the Trusts and distribute the debentures to the trust security holders, subject to receipt of any required regulatory approval(s).

	During the quarter ended September 30, 2008, we entered into four interest rate swap agreements (swaps). We designated each swap as a cash flow hedge and they are intended to protect against the variability of cash flows associated with Trust III and Trust IV. The first two swaps hedge the interest rate risk of Trust III, the first of these two swaps expired September 30, 2013. On the second of these two swaps we receive interest of LIBOR from a counterparty and pay a fixed rate of 4.61% to the same counterparty calculated on a notional amount of $25.0 million. This swap expires in September 2018. The second two swaps hedge the interest rate risk of Trust IV, wherein we receive interest of LIBOR from a counterparty and pay a fixed rate of 3.85% to the same counterparty calculated on a notional amount of $25.0 million and we receive interest of LIBOR from a counterparty and pay a fixed rate of 4.09% to the same counterparty calculated on a notional amount of $25.0 million. The terms of these two swaps are seven years and ten years, respectively, which expire September 2015 and September 2018, respectively. The swap agreements were entered into with a counterparty that met our credit standards and the agreements contain collateral provisions protecting the at-risk party. We believe that the credit risk inherent in the contracts is not significant.

	At December 31, 2013, the fair value of the swap agreements was $(8.0) million and was the amount we would have expected to pay if the contracts were terminated. At December 31, 2013, there was no material hedge ineffectiveness for any of the swaps discussed above.

		December 31,
	Liability Derivatives (Included in Other Liabilities)	2013		2012
	Cash flow hedges — swaps:
	Fair value	$	8,037	12,932
	Notional amount	75,000		100,000
	Collateral posted	8,405		13,505


	The following table sets forth a summary of guaranteed capital debt securities and junior subordinated deferrable interest debentures held by the trusts as of December 31, 2013 and 2012:

		Capital Debt		December 31,
		Securities		2013	2012
	Northwest Bancorp Capital Trust III	$	50,000	51,547	51,547
	Northwest Bancorp Statutory Trust IV	50,000		51,547	51,547
	Total	$	100,000	103,094	103,094

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data - Unaudited	12 Months Ended
Selected Quarterly Financial Data - Unaudited	Dec. 31, 2013
Selected Quarterly Financial Data - Unaudited	'
Selected Quarterly Financial Data - Unaudited	'
	(23) Selected Quarterly Financial Data — Unaudited

		Three months ended
		March 31		June 30	September 30	December 31
		(In thousands, except per share data)
	2013:00:00
	Interest income	$	79,633	78,763	77,788	76,854
	Interest expense	15,645		15,436	15,276	14,805
	Net interest income	63,988		63,327	62,512	62,049
	Provision for loan losses	7,158		5,405	4,992	964
	Noninterest income	16,378		13,413	16,109	20,947
	Noninterest expenses	51,471		52,806	50,277	52,580
	Income before income taxes	21,737		18,529	23,352	29,452
	Income tax expense	6,439		5,051	5,752	9,089
	Net income	$	15,298	13,478	17,600	20,363
	Basic earnings per share	$	0.17	0.15	0.19	0.22
	Diluted earnings per share	$	0.17	0.15	0.19	0.22

		Three months ended
		March 31		June 30	September 30	December 31
		(In thousands, except per share data)
	2012:00:00
	Interest income	$	86,034	84,808	83,876	83,320
	Interest expense	20,843		19,096	18,220	17,040
	Net interest income	65,191		65,712	65,656	66,280
	Provision for loan losses	6,287		4,963	6,915	8,173
	Noninterest income	13,855		15,086	15,273	14,690
	Noninterest expenses	51,276		51,966	51,803	50,432
	Income before income taxes	21,483		23,869	22,211	22,365
	Income tax expense	6,302		7,508	6,518	6,040
	Net income	$	15,181	16,361	15,693	16,325
	Basic earnings per share	$	0.16	0.17	0.17	0.18
	Diluted earnings per share	$	0.16	0.17	0.17	0.18

		Three months ended
		March 31		June 30	September 30	December 31
		(In thousands, except per share data)
	2011:00:00
	Interest income	$	90,907	89,997	89,789	88,535
	Interest expense	24,052		23,462	23,019	22,268
	Net interest income	66,855		66,535	66,770	66,267
	Provision for loan losses	7,244		8,367	8,057	10,502
	Noninterest income	14,511		15,406	14,752	14,309
	Noninterest expenses	49,378		52,490	49,923	48,436
	Income before income taxes	24,744		21,084	23,542	21,638
	Income tax expense	7,491		6,081	6,822	6,463
	Net income	$	17,253	15,003	16,720	15,175
	Basic earnings per share	$	0.16	0.15	0.17	0.16
	Diluted earnings per share	$	0.16	0.15	0.17	0.16

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2013
Summary of Significant Accounting Policies	'
Nature of Operations	'
	(a) *Nature of Operations*

	Northwest Bancshares, Inc. (Company) is a Maryland corporation that was incorporated in September 2009 to be the successor to Northwest Bancorp, Inc. upon completion of the mutual-to-stock conversion of Northwest Bancorp, MHC, Northwest Bancorp, Inc’s mutual holding company parent. Northwest Bancshares, Inc., headquartered in Warren, Pennsylvania, is a federal savings and loan holding company for its wholly owned subsidiary, Northwest Savings Bank. Northwest Savings Bank, a Pennsylvania chartered savings bank, offers personal and business deposit and loan products as well as investment management and insurance services through its 165 banking locations in Pennsylvania, New York, Ohio and Maryland. Northwest Savings Bank, through its subsidiary Northwest Consumer Discount Company, also offers personal loan products through 50 consumer finance offices in Pennsylvania.
Principles of Consolidation	'
	(b) *Principles of Consolidation*

	The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries after elimination of all intercompany accounts and transactions.
Cash and Cash Equivalents	'
	(c) *Cash and Cash Equivalents*

	For purposes of the statement of cash flows, cash and cash equivalents include cash and amounts due from depository institutions, interest-bearing deposits in other financial institutions, federal funds sold, and other short-term investments with original maturities of three months or less.
Investment Securities	'
	(d) *Investment Securities*

	We classify marketable securities at the time of purchase as held-to-maturity, available-for-sale, or trading securities. Securities for which management has the intent and we have the ability to hold until their maturity are classified as held-to-maturity and are carried at cost, adjusted for amortization of premiums and accretion of discounts on a level yield basis (amortized cost). If it is management’s intent at the time of purchase to hold securities for an indefinite period of time and/or to use such securities as part of its asset/liability management strategy, the securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported as accumulated other comprehensive income/ (loss), a separate component of shareholders’ equity, net of tax. Securities classified as available-for-sale include securities that may be sold in response to changes in interest rates, resultant prepayment risk, or other market factors. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading and are reported at fair value, with changes in fair value included in earnings. The cost of securities sold is determined on a specific identification basis. We held no securities classified as trading at or for the years ended December 31, 2013 and 2012.

	On at least a quarterly basis, we review our investments that are in an unrealized loss position for other-than-temporary impairment (“OTTI”). An investment security is deemed impaired if the fair value of the investment is less than its amortized cost. If an investment security is determined to be impaired, we evaluate whether the decline in value is other-than-temporary. We also consider whether or not we expect to receive all of the contractual cash flows from the investment security based on factors that include, but are not limited to: the credit worthiness of the issuer and the historical and projected performance of the underlying collateral. Also, we may evaluate the business and financial outlook of the issuer, as well as broader economic performance indicators. We consider our intent to sell the investment securities and the likelihood that we will not have to sell the investment securities before recovery of their cost basis during our evaluation. Declines in fair value of investment securities that are deemed credit related are recognized in earnings while declines in fair value of investment securities deemed noncredit related are recorded in accumulated other comprehensive income, if we do not intend to sell and it is not likely we will be required to sell. If we intend to sell the security or if it’s more likely than not that we will be required to sell the security the entire unrealized loss is recorded in earnings.

	Federal law requires a member institution of the Federal Home Loan Bank (FHLB) system to hold stock of its district FHLB according to a predetermined formula. This stock is recorded at cost. Quarterly, we evaluate our investment in the FHLB of Pittsburgh for impairment. We evaluate recent and long-term operating performance, liquidity, funding and capital positions, stock repurchase history, dividend history and impact of legislative and regulatory changes. Based on our most recent evaluation, we have determined that no impairment write-downs are currently required.
Loans Receivable	'
	(e) *Loans Receivable*

	Our loan portfolio segments consist of Personal Banking loans and Business Banking loans. Personal Banking loans include the following classes: residential mortgage loans, home equity loans and other consumer loans. Business Banking loans include the following classes: commercial real estate loans and commercial loans. All classes of loans are carried at their unpaid principal balance net of any deferred origination fees or costs and the allowance for estimated loan losses. Interest income on loans is credited to income as earned. Interest earned on loans for which no payments were received during the month is accrued at month end. Accrued interest on loans more than 90 days delinquent is reversed, and such loans are placed on nonaccrual.

	All classes of loans are placed on nonaccrual when principal or interest is 90 days or more delinquent, or when there is reasonable doubt that interest or principal will not be collected in accordance with the contractual terms. Interest receipts on all classes of nonaccrual and impaired loans are recognized as interest revenue when it has been determined that all principal and interest will be collected or are applied to principal when collectability of principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and a period of performance has been established in accordance with the contractual terms, typically six months.

	A loan (from any class) is considered to be a troubled debt restructured loan (TDR) when the restructuring constitutes a concession and the borrower is experiencing financial difficulties. TDRs may include certain modifications of terms of loans, receipts of assets from borrowers in partial or full satisfaction of loans, or a combination thereof. TDRs are included in impaired loans until returned to performing status through the fulfillment of contractual terms for a reasonable period of time (generally six months). A modified loan is determined to be a TDR based on the contractual terms as specified by the original loan agreement or the most recent modification. Once classified a TDR, a loan is removed from such classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off, or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk.

	For all classes of loans, delinquency is measured based on the number of days since the payment due date. For all classes of loans, past due status is measured using the loan’s contractual maturity date.

	Loan fees and certain direct loan origination costs are deferred, and the net deferred fee or cost is then recognized using the level-yield method over the contractual life of the loan as an adjustment to interest income.

	We have identified certain residential mortgage loans, which will be sold prior to maturity, as loans held for sale. These loans are recorded at the lower of amortized cost or fair value less estimated cost to sell and at December 31, 2013 and 2012 were $221,000 and $15.4 million, respectively.
Allowance for Loan Losses and Provision for Loan Losses	'
	(f) *Allowance for Loan Losses and Provision for Loan Losses*

	Provisions for estimated loan losses and the amount of the allowance for loan losses are based on losses inherent in the loan portfolio that are both probable and can be reasonably estimated at the date of the financial statements.

	For all classes of loans, we consider a loan to be impaired when it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. In evaluating whether a loan is impaired, we consider not only the amount that we expect to collect but also the timing of collection. Generally, if a delay in payment is insignificant (e.g., less than 30 days), a loan is not deemed to be impaired.

	Business Banking loans greater than or equal to $1.0 million are reviewed to determine if they should be individually evaluated for impairment. Smaller balance, homogeneous loans (e.g., primarily residential mortgage, home equity and consumer loans) are evaluated collectively for impairment. When a loan is considered to be impaired, the amount of impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s market price, or fair value of the collateral, less estimated cost to sell, if the loan is collateral dependent. Impairment losses are included in the allowance for loan losses. Impaired loans are charged-off or charged down when we believe that the ultimate collectability of a loan is not likely or the collateral value no longer supports the carrying value of the loan.

	Interest income on non-performing loans is recognized using the cash basis method. For non-performing loans interest collected is credited to income in the period of recovery or applied to reduce principal if there is sufficient doubt about the collectability of principal.

	The allowance for loan losses is shown as a valuation allowance to loans. The accounting policy for the determination of the adequacy of the allowance by portfolio segment requires us to make numerous complex and subjective estimates and assumptions relating to amounts which are inherently uncertain. The allowance for loan losses is maintained to absorb losses inherent in the loan portfolio as of the balance sheet date. The methodology used to determine the allowance for loan losses is designed to provide procedural discipline in assessing the appropriateness of the allowance for loan losses. Losses are charged against and recoveries are added to the allowance for loan losses.

	For Business Banking loans the allowance for loan losses consists of:

	· An allowance for impaired loans;
	· An allowance for homogenous loans based on historical losses; and
	· An allowance for homogenous loans based on environmental factors.

	The allowance for impaired loans is based on individual analysis of all nonperforming loans greater than or equal to $1.0 million. The allowance is measured by the difference between the recorded value of impaired loans and their impaired value. The impaired value is either the present value of the expected future cash flows from the borrower, the market value of the loan, or the fair value of the collateral, less estimated cost to sell.

	The allowance for homogeneous loans based on historical factors is a rolling three-year average of actual losses incurred, adjusted for a loss realization period (the period of time from the event of loss to loss realization), applied to homogenous pools of loans categorized by similar risk characteristics, not including loans evaluated individually for impairment.

	The allowance for homogeneous loans based on environmental factors augments the historical loss factors for changes in: economic conditions, lending policies and procedures, the nature and volume of the loan portfolio, management, delinquency trends, loan administration, underlying collateral values and concentrations of credit.

	For Personal Banking loans the allowance for loan losses consists of:

	· An allowance for loans 90 days or more delinquent;
	· An allowance for homogenous loans based on historical losses; and
	· An allowance for homogenous loans based on environmental factors.

	The allowance for loans 90 days or more delinquent is based on the loss history of loans that have become 90 days or more delinquent. We apply a historical loss factor to homogeneous pools of loans that are 90 days or more delinquent.

	The allowance for homogeneous loans based on historical losses is a rolling three-year average of actual losses incurred, adjusted for a loss realization period (the period of time from the event of loss to loss realization), applied to homogenous pools of loans categorized by similar risk characteristics, not including loans that are 90 days or more delinquent.

	The allowance for homogeneous loans based on environmental factors augments the historical loss factors for changes in: economic conditions, lending policies and procedures, the nature and volume of the loan portfolio, management, delinquency trends, loan administration, underlying collateral values and concentrations of credit.

	We also have an unallocated allowance which is based on our judgment regarding economic conditions, collateral values, specific loans and industry conditions.

	The allocation of the allowance for loan losses is inherently judgmental, and the entire allowance for loan losses is available to absorb loan losses regardless of the nature of the loss.

	Personal Banking loans are charged-off or charged down when they become 180 days delinquent, unless the borrower has filed for bankruptcy. Business Banking loans are charged-off or charged down when, in our opinion, they are no longer collectible, or when it has been determined that the collateral value no longer supports the carrying value of the loan, for loans that are collateral dependent.

	We have not made any material changes to our methodology for the calculation of the allowance for loan losses during the current year.
Real Estate Owned	'
	(g) *Real Estate Owned*

	Real estate owned is comprised of property either acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the loan balance or fair value of the collateral, less estimated disposition costs, with the fair value being determined by an appraisal. Any initial write-down is charged to the allowance for loan losses. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or the current fair value, less estimated disposition costs. Any subsequent write-down or gains or losses realized from the disposition of such property are credited or charged to noninterest income.
Premises and Equipment	'
	(h) *Premises and Equipment*

	Premises and equipment are carried at cost less accumulated depreciation and amortization. Depreciation is accumulated on a straight-line basis over the estimated useful lives of the related assets. Estimated lives range from three to 39 years. Amortization of leasehold improvements is accumulated on a straight-line basis over the terms of the related leases or the useful lives of the related assets, whichever is shorter.
Goodwill	'
	(i) *Goodwill*

	Goodwill is generated from the premium paid for an acquisition and is allocated to reporting units, which are either the Company’s reportable segments or one level below. Goodwill is not subject to amortization but is tested for impairment at least annually and possibly more frequently if certain events occur or changes in circumstances arise. Impairment testing requires that the fair value of each reporting unit be compared to its carrying amount, including goodwill. Reporting units are identified based upon analyzing each individual operating segment. A reporting unit is defined as a distinct, separately identifiable component of an operating segment for which complete, discrete financial information is available that management regularly reviews. Determining the fair value of a reporting unit requires a high degree of subjective management judgment, including developing cash flow projections, selecting appropriate discount rates, identifying relevant market comparables, incorporating general economic and market conditions and selecting an appropriate control premium. The selection and weighting of the various fair value techniques may result in a higher or lower fair value. Judgment is applied in determining the weightings that are most representative of fair value. We conduct our annual goodwill impairment assessment as of June 30th. Through the assistance of an external third party, we performed an impairment test on goodwill. We valued each reporting unit by using a weighted average of four valuation methodologies; comparable transaction approach, control premium approach, public market peers approach and discounted cash flow approach. Declines in fair value could result in impairment being identified. At June 30, 2013, we did not identify any individual reporting unit where the fair value was less than the carrying value and no other events or changes have occurred since that date that would warrant an updated valuation. Future changes in the economic environment or the operations of the operating units could cause changes to the variables used, which could give rise to declines in the estimated fair value of the reporting units. There were no changes in our operations that would cause us to update the goodwill impairment test performed as of June 30, 2013. Accordingly, we have determined that goodwill is not impaired as of December 31, 2013 and 2012.
Core Deposit Intangibles and Other Identifiable Intangibles	'
	(j) *Core Deposit Intangibles and Other Identifiable Intangibles*

	Through the assistance of an independent third party, we analyze and prepare a core deposit study for all bank acquisitions or other identifiable intangible asset study, such as customer lists, for all non-bank acquisitions. The core deposit study reflects the cumulative present value benefit of acquiring deposits versus an alternative source of funding. The other identifiable intangible asset study reflects the cumulative present value benefit of acquiring the income stream from an existing customer base versus developing new business relationships. Based upon analysis, the amount of the premium related to the core deposits or other identifiable intangibles of the business purchased is calculated along with the estimated life of the intangible. The intangible, which is recorded in other intangible assets, is then amortized to expense on an accelerated basis over an approximate life of seven years.
Bank-Owned Life Insurance	'
	(k) *Bank-Owned Life Insurance*

	We own insurance on the lives of a certain group of key employees and directors. The policies were purchased to help offset the increase in the costs of various fringe benefit plans, including healthcare, as well as the directors deferred compensation plan. The cash surrender value of these policies is included as an asset on the consolidated statements of financial condition, and any increases in the cash surrender value are recorded as tax-free noninterest income on the consolidated statements of income. In the event of the death of an insured individual under these policies, after distribution to the insured’s beneficiaries, if any, we receive a tax-free death benefit, which is recorded as noninterest income.

Deposits	'
	(l) *Deposits*

	Interest on deposits is accrued and charged to expense monthly and is paid or credited in accordance with the terms of the accounts.
Pension Plans	'
	(m) *Pension Plans*

	We maintain multiple noncontributory defined benefit pension plans for substantially all of our employees. The net periodic pension cost has been calculated using service cost, interest cost, expected returns on plan assets and net amortization.
Income Taxes	'
	(n) *Income Taxes*

	We join with our wholly owned subsidiaries in filing a consolidated federal income tax return. In accordance with an intercompany tax allocation agreement, the applicable federal income tax expense or benefit is allocated to each subsidiary based upon taxable income or loss calculated on a separate company basis. Each subsidiary is responsible for payment of its own federal income tax liability or receives reimbursement of federal income tax benefit. In addition, deferred taxes are calculated and maintained on a separate company basis.

	We account for income taxes under the asset and liability method. The objective of the asset and liability method is to establish deferred tax assets and liabilities for temporary differences between the financial reporting and tax basis of our assets and liabilities based on the tax rates expected to be in effect when such amounts are realized or settled.
Stock Related Compensation	'
	(o) *Stock Related Compensation*

	We determine the fair value of each option award, estimated on the grant date, using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model uses variables including; expected volatilities, expected term, risk-free discount rate and annual rate of quarterly dividends. Expected volatilities are based on historical volatility of the Company’s stock. The expected terms are based upon actual exercise and forfeiture experience of previous option grants. The risk-free rate is based on yields on U.S. Treasury securities of a similar maturity to the expected term of the options. During the year ended December 31, 2013 we awarded 511,100 stock options to employees and 79,200 stock options to directors. Option awards are generally granted with an exercise price equal to the closing market price of the Company’s stock on the day before the grant date. The options granted in 2013 vest over a ten-year period, with the first vesting occurring on the grant date. New shares are issued when options are exercised.

	During the year ended December 31, 2013 we awarded 240,700 common shares to employees and 29,700 common shares to directors. The common share awards granted in 2013 vest over a ten-year period, with the first vesting occurring on the grant date. During the year ended December 31, 2013 we awarded 126,280 common shares to eligible employees from our employee stock ownership plan (“ESOP”). For additional information regarding grants of stock options and common shares and ESOP distributions see Note 14.

	Stock-based employee compensation expense related to common share awards of $2.4 million, $2.1 million and $2.7 million was included in income before income taxes during the years ended December 31, 2013, 2012 and 2011, respectively. The effect on net income for the years ended December 31, 2013, 2012 and 2011 was a reduction of $1.6 million, $1.4 million and $1.8 million, respectively. Total compensation expense for unvested stock options of $5.2 million has yet to be recognized as of December 31, 2013. The weighted average period over which this remaining stock option expense will be recognized is approximately 4.39 years.

	The fair value of each option grant is estimated on the date of grant using the Black-Scholes-Merton option-pricing model with the following weighted average assumptions: (1) dividend yields ranging from 1.6% to 5.1% based on historical dividends and market prices; (2) expected volatility of 17% to 33% based on historical volatility; (3) risk-free interest rates ranging from 1.7% to 6.5%; and (4) expected lives of seven to nine years based on previous grants.
Segment Reporting	'
	(p) *Segment Reporting*

	We have two reportable segments, Community Banking and Consumer Finance. See note 20 for related disclosures.
Derivative financial instruments - interest rate swaps	'
	(q) *Derivative financial instruments — interest rate swaps*

	We recognize all derivative financial instruments as either assets or liabilities in the balance sheet and measure those instruments at fair value. The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. An entity that elects to use hedge accounting is required, at inception, to establish the method it will use for assessing the effectiveness of the hedging derivative and the measurement approach for determining the ineffective aspect of the hedge. Those methods must be consistent with our approach to managing risk.

	We utilize interest rate swap agreements as part of the management of interest rate risk to hedge the interest rate risk on our trust preferred debentures. Amounts receivable or payable are recognized as accrued under the terms of the agreements and the differential is recorded as an adjustment to interest expense. The interest rate swaps are designated as cash flow hedges, with the effective portion of the derivative’s unrealized gain or loss recorded as a component of other comprehensive income. The ineffective portion of the unrealized gain or loss, if any, would be recorded in other expense. See note 22 for related disclosures.
Off-Balance-Sheet Instruments	'
	(r) *Off-Balance-Sheet Instruments*

	In the normal course of business, we extend credit in the form of loan commitments, undisbursed lines of credit, and standby letters of credit. These off-balance-sheet instruments involve, to various degrees, elements of credit and interest rate risk not reported in the consolidated statement of financial condition. We utilize the same underwriting standards for these instruments as other extensions of credit.
Use of Estimates	'
	(s) *Use of Estimates*

	The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. The estimates and assumptions that we deem important to our financial statements relate to the allowance for loan losses, the accounting treatment and valuation of our investment securities portfolio, the analysis of the carrying value of goodwill and income taxes. These estimates and assumptions are based on management’s best estimates and judgment and we evaluate them using historical experience and other factors, including the current economic environment. We adjust our estimates and assumptions when facts and circumstances dictate. As future events cannot be determined, actual results could differ significantly from our estimates.
Reclassification of Prior Years' Statements	'
	(t) *Reclassification of Prior Years’ Statements*

	Certain items previously reported have been reclassified to conform with the current year’s reporting format.

Marketable_Securities_Tables

Marketable Securities (Tables)	12 Months Ended
Marketable Securities (Tables)	Dec. 31, 2013
Marketable Securities	'
Schedule of the portfolio of investment securities available-for-sale	'
	Marketable securities available-for-sale at December 31, 2013 are as follows:

						Gross		Gross
						unrealized		unrealized
			Amortized			holding		holding		Fair
			cost			gains		losses		value
	Debt issued by the U.S. government and agencies:
	Due in one year or less		$	32		—		—		32

	Debt issued by government sponsored enterprises:
	Due in one year - five years		227,945			166		(4,041	)	224,070
	Due in five years - ten years		94,777			72		(2,862	)	91,987

	Equity securities		5,298			4,622		(70	)	9,850

	Municipal securities:
	Due in one year or less		710			10		—		720
	Due in one year - five years		8,443			119		—		8,562
	Due in five years - ten years		11,228			275		—		11,503
	Due after ten years		71,068			1,111		(386	)	71,793

	Corporate debt issues:
	Due after ten years		21,150			475		(449	)	21,176

	Residential mortgage-backed securities:
	Fixed rate pass-through		85,306			3,041		(1,075	)	87,272
	Variable rate pass-through		78,890			3,525		(16	)	82,399
	Fixed rate non-agency CMOs		3,894			107		(3	)	3,998
	Fixed rate agency CMOs		265,769			1,060		(11,436	)	255,393
	Variable rate non-agency CMOs		660			—		(9	)	651
	Variable rate agency CMOs		146,908			674		(221	)	147,361
	Total residential mortgage-backed securities		581,427			8,407		(12,760	)	577,074
	Total marketable securities available-for-sale		$	1,022,078		15,257		(20,568	)	1,016,767


	Marketable securities available-for-sale at December 31, 2012 are as follows:

						Gross		Gross
						unrealized		unrealized
			Amortized			holding		holding		Fair
			cost			gains		losses		value
	Debt issued by the U.S. government and agencies:
	Due in one year or less		$	40		—		—		40

	Debt issued by government sponsored enterprises:
	Due in one year or less		1,999			5		—		2,004
	Due in one year - five years		140,352			183		(22	)	140,513
	Due in five years - ten years		95,602			460		(265	)	95,797

	Equity securities		13,301			6,025		(22	)	19,304

	Municipal securities:
	Due in one year - five years		9,629			233		—		9,862
	Due in five years - ten years		17,355			668		—		18,023
	Due after ten years		100,644			5,679		—		106,323

	Corporate debt issues:
	Due after ten years		24,911			483		(2,691	)	22,703

	Residential mortgage-backed securities:
	Fixed rate pass-through		85,134			6,266		—		91,400
	Variable rate pass-through		104,591			5,314		(6	)	109,899
	Fixed rate non-agency CMOs		5,700			156		(236	)	5,620
Fixed rate agency CMOs		227,608			3,462		(744	)	230,326
Variable rate non-agency CMOs		873			—		(20	)	853
Variable rate agency CMOs		225,383			1,345		(321	)	226,407
Total residential mortgage-backed securities		649,289			16,543		(1,327	)	664,505
Total marketable securities available-for-sale		$	1,053,122		30,279		(4,327	)	1,079,074
Schedule of the portfolio of investment securities held-to-maturity	'
	Marketable securities held to maturity at December 31, 2012 are as follows:

						Gross		Gross
						unrealized		unrealized
			Amortized			holding		holding		Fair
			cost			gains		losses		value
	Municipal securities:
	Due in five - ten years		$	3,679		160		—		3,839
	Due after ten years		65,596			3,743		—		69,339

	Residential mortgage-backed securities:
	Fixed rate pass-through		16,369			912		—		17,281
	Variable rate pass-through		6,548			—		(14	)	6,534
	Fixed rate agency CMOs		56,713			2,006		—		58,719
	Variable rate agency CMOs		6,176			81		—		6,257
	Total residential mortgage-backed securities		85,806			2,999		(14	)	88,791
	Total marketable securities held-to-maturity		$	155,081		6,902		(14	)	161,969
Information regarding the issuers and the carrying values of the entity's mortgage-backed securities	'


			December 31,
			2013			2012
	Residential mortgage backed securities:
	FNMA		$	279,684		341,778
	GNMA		66,802			97,648
	FHLMC		264,752			287,942
	SBA		12,569			15,775
	Other (including non-agency)		5,317			7,168
	Total residential mortgage-backed securities		$	629,124		750,311
Schedule of the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position	'
	The following table shows the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2013:

			Less than 12 months					12 months or more				Total
						Unrealized				Unrealized			Unrealized
			Fair value			loss		Fair value		loss		Fair value	loss

	U.S. government and agencies		$	213,915		(4,797	)	64,635		(2,106	)	278,550	(6,903	)
	Municipal securities		12,666			(413	)	—		—		12,666	(413	)
	Corporate debt issues		—			—		1,970		(449	)	1,970	(449	)
	Equity securities		552			(70	)	—		—		552	(70	)
	Residential mortgage-backed securities - non-agency		1,210			(12	)	—		—		1,210	(12	)
	Residential mortgage-backed securities - agency		224,125			(10,398	)	109,301		(2,383	)	333,426	(12,781	)

	Total temporarily impaired securities		$	452,468		(15,690	)	175,906		(4,938	)	628,374	(20,628	)

	The following table shows the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2012:

			Less than 12 months					12 months or more				Total
						Unrealized				Unrealized			Unrealized
			Fair value			loss		Fair value		loss		Fair value	loss

	U.S. government and agencies		$	70,128		(286	)	6,537		(1	)	76,665	(287	)
	Corporate debt issues		850			(39	)	12,095		(2,652	)	12,945	(2,691	)
	Equity securities		601			(21	)	17		(1	)	618	(22	)
	Residential mortgage-backed securities - non-agency		—			—		4,357		(256	)	4,357	(256	)
	Residential mortgage-backed securities - agency		167,294			(1,055	)	14,231		(30	)	181,525	(1,085	)

	Total temporarily impaired securities		$	238,873		(1,401	)	37,237		(2,940	)	276,110	(4,341	)
Schedule of categories of investment securities on which other-than-temporary impairment charges have been recorded in earnings	'


			Total							Accumulated
	Category		Amortized			Fair		Unrealized		impairment
	Category		cost			value		gain		charges
	Freddie Mac preferred shares		$	49		1,376		1,327		(4,951	)
	Trust preferred investments		17,259			17,704		445		(9,549	)
	Non-agency CMOs		3,105			3,212		107		(1,007	)
			$	20,413		22,292		1,879		(15,507	)
Schedule of the cumulative roll forward of credit related impairment losses recognized in earnings for debt securities held and not intended to be sold	'


			December 31,
			2013			2012
	Beginning balance as of January 1 (1)		$	9,811		11,633
	Credit losses on debt securities for which other-than-temporary impairment was not previously recognized		713			—
	Reduction for losses realized during the year		(182		)	(2,153	)
	Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized		—			331
	Ending balance as of December 31		$	10,342		9,811


	(1) The beginning balance represents credit losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

Loans_Receivable_and_Allowance1

Loans Receivable and Allowance for Loan Losses (Tables)	12 Months Ended
Loans Receivable and Allowance for Loan Losses (Tables)	Dec. 31, 2013
Loans Receivable and Allowance for Loan Losses	'
Summary of loans receivable	'


			December 31,
			2013			2012
	Personal Banking:
	Loans held for sale		$	221		15,441
	Residential mortgage loans		2,491,917			2,416,419
	Home equity loans		1,083,939			1,083,654
	Other consumer loans		228,348			228,350
	Total Personal Banking		3,804,425			3,743,864

	Business Banking:
	Commercial real estate		1,665,274			1,615,701
	Commercial loans		437,559			432,944
	Total Business Banking		2,102,833			2,048,645
	Total loans receivable, gross		5,907,258			5,792,509

	Deferred loan costs/ (fees)		2,461			(1,624	)
	Allowance for loan losses		(71,348		)	(73,219	)
	Undisbursed loan proceeds:
	Residential mortgage loans		(11,595		)	(14,587	)
	Commercial real estate		(56,875		)	(29,868	)
	Commercial loans		(34,958		)	(43,950	)
	Total loans receivable, net		$	5,734,943		5,629,261
Schedule of the changes in the allowance for losses on loans receivable	'


			Balance			Provision		Charge-offs		Recoveries		Balance
			December 31,									December 31,
			2013									2012
	Personal Banking:
	Residental mortgage loans		$	7,875		1,954		(2,501	)	420		8,002
	Home equity loans		7,245			932		(2,239	)	258		8,294
	Other consumer loans		5,487			5,304		(6,055	)	1,082		5,156
	Total Personal Banking		20,607			8,190		(10,795	)	1,760		21,452

	Business Banking:
	Commercial real estate loans		34,969			8,207		(10,042	)	2,305		34,499
	Commercial loans		11,110			1,486		(5,007	)	1,389		13,242
	Total Business Banking		46,079			9,693		(15,049	)	3,694		47,741

	Unallocated		4,662			636		—		—		4,026

	Total		$	71,348		18,519		(25,844	)	5,454		73,219


			Balance			Provision		Charge-offs		Recoveries		Balance
			December 31,									December 31,
			2012									2011
	Personal Banking:
	Residental mortgage loans		$	8,002		3,287		(4,295	)	528		8,482
	Home equity loans		8,294			3,376		(4,066	)	297		8,687
	Other consumer loans		5,156			4,340		(5,919	)	1,410		5,325
	Total Personal Banking		21,452			11,003		(14,280	)	2,235		22,494

	Business Banking:
	Commercial real estate loans		34,499			10,447		(9,919	)	1,823		32,148
	Commercial loans		13,242			5,278		(6,254	)	2,138		12,080
	Total Business Banking		47,741			15,725		(16,173	)	3,961		44,228

	Unallocated		4,026			(390	)	—		—		4,416

	Total		$	73,219		26,338		(30,453	)	6,196		71,138


			Balance			Provision		Charge-offs		Recoveries		Balance
			December 31,									December 31,
			2011									2010
	Personal Banking:
	Residental mortgage loans		$	8,482		5,518		(4,198	)	308		6,854
	Home equity loans		8,687			5,619		(4,734	)	127		7,675
	Other consumer loans		5,325			3,544		(5,283	)	1,254		5,810
	Total Personal Banking		22,494			14,681		(14,215	)	1,689		20,339

	Business Banking:
	Commercial real estate loans		32,148			7,952		(12,508	)	872		35,832
	Commercial loans		12,080			11,592		(15,641	)	359		15,770
	Total Business Banking		44,228			19,544		(28,149	)	1,231		51,602

	Unallocated		4,416			(55	)	—		—		4,471

	Total		$	71,138		34,170		(42,364	)	2,920		76,412
Schedule of loan portfolio by portfolio segment and by class of financing receivable	'
	The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable as of December 31, 2013:

			Recorded			Allowance for		Recorded		Recorded		TDRs	Allowance	Additional
			investment in			loan losses		investment in		investment in			related to	commitments
			loans					loans on		loans past due			TDRs	to customers
			receivable					nonaccrual		90 days or				with loans
								-1		more and still				classified as
										accruing				TDRs
	Personal Banking:
	Residental mortgage loans		$	2,483,004		7,875		27,277		—		4,004	863	—
	Home equity loans		1,083,939			7,245		9,863		1		2,240	371	—
	Other consumer loans		228,348			5,487		2,257		666		—	—	—
	Total Personal Banking		3,795,291			20,607		39,397		667		6,244	1,234	—

	Business Banking:
	Commercial real estate loans		1,608,399			34,969		41,803		—		48,829	4,503	301
	Commercial loans		402,601			11,110		26,021		23		24,093	2,778	454
	Total Business Banking		2,011,000			46,079		67,824		23		72,922	7,281	755

	Total		$	5,806,291		66,686		107,221		690		79,166	8,515	755


	(1) Includes $28.9 million of nonaccrual TDRs.

	The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable as of December 31, 2012:

			Recorded			Allowance for		Recorded		Recorded		TDRs	Allowance	Additional
			investment in			loan losses		investment in		investment in			related to	commitments
			loans					loans on		loans past due			TDRs	to customers
			receivable					nonaccrual		90 days or				with loans
								-1		more and still				classified as
										accruing				TDRs
	Personal Banking:
	Residental mortgage loans		$	2,415,649		8,002		25,083		9		5,045	1,074	—
	Home equity loans		1,083,654			8,294		9,114		2		1,891	266	—
	Other consumer loans		228,350			5,156		1,980		776		—	—	—
	Total Personal Banking		3,727,653			21,452		36,177		787		6,936	1,340	—

	Business Banking:
	Commercial real estate loans		1,585,833			34,499		57,861		388		49,826	7,322	391
	Commercial loans		388,994			13,242		26,174		523		32,682	4,112	2,596
	Total Business Banking		1,974,827			47,741		84,035		911		82,508	11,434	2,987

	Total		$	5,702,480		69,193		120,212		1,698		89,444	12,774	2,987


	(1) Includes $41.2 million of nonaccrual TDRs.

Schedule of the composition of impaired loans by portfolio segment and by class of financing receivable	'
	The following table provides information related to the composition of impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2013:

			Nonaccrual			Nonaccrual		Loans less		TDRs less		Total	Average	Interest
			loans 90 or			loans less		than 90 days		than 90 days		impaired	recorded	income
			more days			than 90 days		delinquent		delinquent		loans	investment	recognized
			delinquent			delinquent		reviewed for		not included			in impaired	on impaired
								impairment		elsewhere			loans	loans
	Personal Banking:
	Residential mortgage loans		$	24,625		2,652		—		3,372		30,649	29,994	723
	Home equity loans		8,344			1,519		—		1,810		11,673	10,828	383
	Other consumer loans		2,057			200		—		—		2,257	1,976	44
	Total Personal Banking		35,026			4,371		—		5,182		44,579	42,798	1,150

	Business Banking:
	Commercial real estate loans		18,433			23,370		39,199		13,060		94,062	90,912	3,678
	Commercial loans		4,298			21,723		5,219		3,963		35,203	41,303	1,127
	Total Business Banking		22,731			45,093		44,418		17,023		129,265	132,215	4,805

	Total		$	57,757		49,464		44,418		22,205		173,844	175,013	5,955

	The following table provides information related to the composition of impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2012:

			Nonaccrual			Nonaccrual		Loans less		TDRs less		Total	Average	Interest
			loans 90 or			loans less		than 90 days		than 90 days		impaired	recorded	income
			more days			than 90 days		delinquent		delinquent		loans	investment	recognized
			delinquent			delinquent		reviewed for		not included			in impaired	on impaired
								impairment		elsewhere			loans	loans
	Personal Banking:
	Residential mortgage loans		$	24,286		797		—		3,011		28,094	28,078	683
	Home equity loans		8,479			635		—		1,352		10,466	10,535	342
	Other consumer loans		1,936			44		—		—		1,980	1,841	35
	Total Personal Banking		34,701			1,476		—		4,363		40,540	40,454	1,060

	Business Banking:
	Commercial real estate loans		24,550			33,311		33,282		16,274		107,417	98,891	3,636
	Commercial loans		9,096			17,078		—		10,180		36,354	51,131	1,828
	Total Business Banking		33,646			50,389		33,282		26,454		143,771	150,022	5,464

	Total		$	68,347		51,865		33,282		30,817		184,311	190,476	6,524

	The following table provides information related to the composition of impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2011:

			Nonaccrual			Nonaccrual		Loans less		TDRs less		Total	Average	Interest
			loans 90 or			loans less		than 90 days		than 90 days		impaired	recorded	income
			more days			than 90 days		delinquent		delinquent		loans	investment	recognized
			delinquent			delinquent		reviewed for		not included			in impaired	on impaired
								impairment		elsewhere			loans	loans
	Personal Banking:
	Residential mortgage loans		$	28,221		—		—		361		28,582	30,731	538
	Home equity loans		9,560			—		—		—		9,560	9,574	182
	Other consumer loans		2,667			—		—		—		2,667	2,340	34
	Total Personal Banking		40,448			—		—		361		40,809	42,645	754

	Business Banking:
	Commercial real estate loans		44,603			17,891		15,467		16,097		94,058	101,731	3,640
	Commercial loans		10,785			17,378		7,337		8,991		44,491	59,897	1,642
	Total Business Banking		55,388			35,269		22,804		25,088		138,549	161,628	5,282

	Total		$	95,836		35,269		22,804		25,449		179,358	204,273	6,036
Schedule of the evaluation of impaired loans by portfolio segment and by class of financing receivable	'
	The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable as of and for the year ended December 31, 2013:

			Loans			Loans		Loans		Related		Loans
			collectively			individually		individually		impairment		individually
			evaluated for			evaluated for		evaluated for		reserve		evaluated for
			impairment			impairment		impairment				impairment
								for which				for which
								there is a				there is no
								related				related
								impairment				reserve
								reserve
	Personal Banking:
	Residental mortgage loans		$	2,477,888		5,116		5,116		1,136		—
	Home equity loans		1,081,699			2,240		2,240		333		—
	Other consumer loans		228,227			121		121		1		—
	Total Personal Banking		3,787,814			7,477		7,477		1,470		—

	Business Banking:
	Commercial real estate loans		1,532,117			76,282		45,761		6,300		30,521
	Commercial loans		371,287			31,314		21,395		4,133		9,919
	Total Business Banking		1,903,404			107,596		67,156		10,433		40,440

	Total		$	5,691,218		115,073		74,633		11,903		40,440

	The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable as of and for the year ended December 31, 2012:

			Loans			Loans		Loans		Related		Loans
			collectively			individually		individually		impairment		individually
			evaluated for			evaluated for		evaluated for		reserve		evaluated for
			impairment			impairment		impairment				impairment
								for which				for which
								there is a				there is no
								related				related
								impairment				reserve
								reserve
	Personal Banking:
	Residental mortgage loans		$	2,410,604		5,045		5,045		992		—
	Home equity loans		1,081,763			1,891		1,891		189		—
	Other consumer loans		228,350			—		—		—		—
	Total Personal Banking		3,720,717			6,936		6,936		1,181		—

	Business Banking:
	Commercial real estate loans		1,501,032			84,801		61,136		9,789		23,665
	Commercial loans		352,752			36,242		35,622		5,637		620
	Total Business Banking		1,853,784			121,043		96,758		15,426		24,285

	Total		$	5,574,501		127,979		103,694		16,607		24,285
Schedule of roll forward of troubled debt restructurings	'


			For the years ended December 31,
			2013					2012
			Number					Number
			of					of
			contracts					contracts
	Beginning TDR balance:		225		$	89,444		47		$	69,429
	New TDRs		121		31,111			201		56,845
	Net paydowns				(25,715		)			(25,205		)
	Charge-offs:
	Residential mortgage loans		4		(357		)	3		(38		)
	Home equity loans		5		(120		)	6		(126		)
	Commercial real estate loans		4		(1,063		)	2		(554		)
	Commercial loans		9		(389		)	1		(1,986		)
	Paid-off loans:
	Residential mortgage loans		2		(502		)	—		—
	Home equity loans		5		(24		)	—		—
	Commercial real estate loans		10		(6,927		)	9		(8,537		)
	Commercial loans		30		(4,222		)	2		(384		)
	Transferred to real estate owned
	Commercial loans		1		(2,070		)	—		—
	Ending TDR balance:		276		$	79,166		225		$	89,444

	Accruing TDRs				$	50,277				$	48,278
	Non-accrual TDRs				28,889					41,166
Schedule of troubled debt restructurings by portfolio segment and by class of financing receivable	'
	The following table provides information related to troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2013:

			Number of		Recorded			Current		Current
			contracts		investment at			recorded		allowance
					the time of			investment
					modification
	Troubled debt restructurings:
	Personal Banking:
	Residential mortgage loans		4		$	374		319		50
	Home equity loans		12		656			692		118
	Other consumer loans		—		—			—		—
	Total Personal Banking		16		1,030			1,011		168

	Business Banking:
	Commercial real estate loans		58		16,760			11,196		781
	Commercial loans		47		13,321			12,754		162
	Total Business Banking		105		30,081			23,950		943

	Total		121		$	31,111		24,961		1,111

			Number of		Recorded			Current		Current
			contracts		investment at			recorded		allowance
					the time of			investment
					modification

	Troubled debt restructurings that subsequently defaulted:
	Personal Banking:
	Residential mortgage loans		5		$	950		607		160
	Home equity loans		2		183			188		170
	Other consumer loans		—		—			—		—
	Total Personal Banking		7		1,133			795		330

	Business Banking:
	Commercial real estate loans		15		5,281			3,488		533
	Commercial loans		11		9,952			1,165		45
	Total Business Banking		26		15,233			4,653		578

	Total		33		$	16,366		5,448		908

	The following table provides information related to troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2012:

			Number of		Recorded			Current		Current
			contracts		investment at			recorded		allowance
					the time of			investment
					modification
	Troubled debt restructurings:
	Personal Banking:
	Residential mortgage loans		35		$	6,136		5,045		1,016
	Home equity loans		42		2,071			1,891		266
	Other consumer loans		—		—			—		—
	Total Personal Banking		77		8,207			6,936		1,282

	Business Banking:
	Commercial real estate loans		58		19,582			17,724		2,509
	Commercial loans		66		29,056			22,584		3,219
	Total Business Banking		124		48,638			40,308		5,728

	Total		201		$	56,845		47,244		7,010

			Number of		Recorded			Current		Current
			contracts		investment at			recorded		allowance
					the time of			investment
					modification

Troubled debt restructurings that subsequently defaulted:
Personal Banking:
Residential mortgage loans		2		$	529		429		153
Home equity loans		—		—			—		—
Other consumer loans		—		—			—		—
Total Personal Banking		2		529			429		153

Business Banking:
Commercial real estate loans		8		2,870			2,346		786
Commercial loans		10		1,456			665		75
Total Business Banking		18		4,326			3,011		861

Total		20		$	4,855		3,440		1,014

The following table provides information related to troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2011:

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification
Troubled debt restructurings:
Personal Banking:
Residential mortgage loans		2		$	894		806		128
Home equity loans		—		—			—		—
Other consumer loans		—		—			—		—
Total Personal Banking		2		894			806		128

Business Banking:
Commercial real estate loans		21		21,617			21,387		1,358
Commercial loans		21		17,673			16,011		646
Total Business Banking		42		39,290			37,398		2,004

Total		44		$	40,184		38,204		2,132

		Number of		Recorded			Current		Current
		contracts		investment at			recorded		allowance
				the time of			investment
				modification

Troubled debt restructurings that subsequently defaulted:
Personal Banking:
Residential mortgage loans		—		$	—		—		—
Home equity loans		—		—			—		—
Other consumer loans		—		—			—		—
Total Personal Banking		—		—			—		—

Business Banking:
Commercial real estate loans		8		3,616			2,218		516
Commercial loans		4		10,864			1,385		277
Total Business Banking		12		14,480			3,603		793

Total		12		$	14,480		3,603		793
Schedule of re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'
	The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2013:

			Number of re-		Type of modification
			modified		Type of modification
			TDRs		Rate			Payment		Maturity date		Other	Total
	Personal Banking:
	Residental mortgage loans		—		$	—		—		—		—	—
	Home equity loans		1		—			89		—		—	89
	Other consumer loans		—		—			—		—		—	—
	Total Personal Banking		1		—			89		—		—	89

	Business Banking:
	Commercial real estate loans		8		152			227		471		—	850
	Commercial loans		5		—			—		10,610		—	10,610
	Total Business Banking		13		152			227		11,081		—	11,460

	Total		14		$	152		316		11,081		—	11,549

	The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the year ended December 31, 2012:

			Number of re-		Type of modification
			modified		Type of modification
			TDRs		Rate			Payment		Maturity date		Other	Total
	Personal Banking:
	Residental mortgage loans		—		$	—		—		—		—	—
	Home equity loans		—		—			—		—		—	—
	Other consumer loans		—		—			—		—		—	—
	Total Personal Banking		—		—			—		—		—	—

	Business Banking:
	Commercial real estate loans		5		800			—		1,662		231	2,693
	Commercial loans		7		1,747			—		4,077		304	6,128
	Total Business Banking		12		2,547			—		5,739		535	8,821

	Total		12		$	2,547		—		5,739		535	8,821
Schedule of loan delinquencies	'
	The following table provides information related to loan delinquencies as of December 31, 2013:

			30-59 days			60-89 days		90 days or		Total		Current	Total
			delinquent			delinquent		greater		delinquency			loans
								delinquent
	Personal Banking:
	Residential mortgage loans		$	27,486		7,568		24,625		59,679		2,423,325	2,483,004
	Home equity loans		6,946			2,243		8,344		17,533		1,066,406	1,083,939
	Other consumer loans		4,515			1,866		2,057		8,438		219,910	228,348
	Total Personal Banking		38,947			11,677		35,026		85,650		3,709,641	3,795,291

	Business Banking:
	Commercial real estate loans		8,449			3,968		18,433		30,850		1,577,549	1,608,399
	Commercial loans		9,243			1,555		4,298		15,096		387,505	402,601
	Total Business Banking		17,692			5,523		22,731		45,946		1,965,054	2,011,000

	Total		$	56,639		17,200		57,757		131,596		5,674,695	5,806,291

	The following table provides information related to loan delinquencies as of December 31, 2012:

			30-59 days			60-89 days		90 days or		Total		Current	Total
			delinquent			delinquent		greater		delinquency			loans
								delinquent
	Personal Banking:
	Residential mortgage loans		$	32,921		9,387		24,286		66,594		2,349,055	2,415,649
	Home equity loans		6,534			1,977		8,479		16,990		1,066,664	1,083,654
	Other consumer loans		5,456			1,830		1,936		9,222		219,128	228,350
	Total Personal Banking		44,911			13,194		34,701		92,806		3,634,847	3,727,653

	Business Banking:
	Commercial real estate loans		13,001			4,596		24,550		42,147		1,543,686	1,585,833
	Commercial loans		3,233			10,158		9,096		22,487		366,507	388,994
	Total Business Banking		16,234			14,754		33,646		64,634		1,910,193	1,974,827

	Total		$	61,145		27,948		68,347		157,440		5,545,040	5,702,480
Schedule of credit quality indicators	'
	The following table sets forth information about credit quality indicators as of December 31, 2013:

			Pass			Special		Substandard		Doubtful		Loss	Total
			Pass			mention		Substandard		Doubtful		Loss	Total
	Personal Banking:
	Residential mortgage loans		$	2,464,057		—		17,626		—		1,321	2,483,004
	Home equity loans		1,075,595			—		8,344		—		—	1,083,939
	Other consumer loans		226,922			—		1,426		—		—	228,348
	Total Personal Banking		3,766,574			—		27,396		—		1,321	3,795,291

	Business Banking:
	Commercial real estate loans		1,398,652			46,557		161,906		1,284		—	1,608,399
	Commercial loans		345,612			12,045		43,040		1,904		—	402,601
	Total Business Banking		1,744,264			58,602		204,946		3,188		—	2,011,000

	Total		$	5,510,838		58,602		232,342		3,188		1,321	5,806,291

	The following table sets forth information about credit quality indicators as of December 31, 2012:

			Pass			Special		Substandard		Doubtful		Loss	Total
			Pass			mention		Substandard		Doubtful		Loss	Total
	Personal Banking:
	Residential mortgage loans		$	2,395,809		—		18,743		48		1,049	2,415,649
	Home equity loans		1,075,200			—		8,454		—		—	1,083,654
	Other consumer loans		227,089			—		1,261		—		—	228,350
	Total Personal Banking		3,698,098			—		28,458		48		1,049	3,727,653

	Business Banking:
	Commercial real estate loans		1,352,118			68,130		163,751		1,834		—	1,585,833
	Commercial loans		320,228			13,077		52,742		2,947		—	388,994
	Total Business Banking		1,672,346			81,207		216,493		4,781		—	1,974,827

	Total		$	5,370,444		81,207		244,951		4,829		1,049	5,702,480
Schedule of financial instruments with off-balance-sheet risk	'


			December 31,
			2013			2012
	Loan commitments		$	174,998		66,973
	Undisbursed lines of credit		432,334			401,685
	Standby letters of credit		27,347			57,122
			$	634,679		525,780
Schedule of changes in MSRs	'

								Net
								carrying
			Servicing			Valuation		value and
			rights			allowance		fair value

	Balance at December 31, 2011		$	3,655		—		3,655
	Additions		2,285			—		2,285
	Amortization		(2,649		)	—		(2,649	)
	Balance at December 31, 2012		3,291			—		3,291
	Additions		461			—		461
	Amortization		(1,818		)	—		(1,818	)
	Balance at December 31, 2013		$	1,934		—		1,934
Schedule of inputs used to determine the fair value of MSRs	'
	The following table presents additional information about the inputs used to determine the fair value of our MSRs at the periods indicated (dollar amounts not in thousands):

			December 31,
			2013			2012
			(Weighted average)

	Forward yield curve (5 year LIBOR swap)		1.47		%	0.75		%
	Prepayment rates		10.9		%	22.7		%
	Annual service cost per loan		$	68		$	77
	Average life expectancy (months)		82			45
	Option adjusted spread (basis points)		750			800

Accrued_Interest_Receivable_Ta

Accrued Interest Receivable (Tables)	12 Months Ended
Accrued Interest Receivable (Tables)	Dec. 31, 2013
Accrued Interest Receivable	'
Schedule of accrued interest receivable	'

		December 31,
		2013		2012
	Investment securities	$	2,205	2,354
	Mortgage-backed securities	1,079		1,359
	Loans receivable	18,537		19,600
		$	21,821	23,313

Premises_and_Equipment_Tables

Premises and Equipment (Tables)	12 Months Ended
Premises and Equipment (Tables)	Dec. 31, 2013
Premises and Equipment	'
Schedule of premises and equipment	'

		December 31,
		2013			2012
	Land and land improvements	$	20,041		17,308
	Office buildings and improvements	152,428			139,167
	Furniture, fixtures and equipment	106,139			106,433
	Leasehold improvements	12,211			12,298
	Total, at cost	290,819			275,206
	Less accumulated depreciation and amortization	(144,680		)	(136,382	)
	Premises and equipment, net	$	146,139		138,824
Schedule of minimum annual rentals	'

	2014	$	3,808
	2015	3,068
	2016	2,636
	2017	2,099
	2018	1,547
	Thereafter	5,144
		$	18,302

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
Goodwill and Other Intangible Assets (Tables)	Dec. 31, 2013
Goodwill and Other Intangible Assets	'
Schedule of intangible assets subject to amortization	'

		December 31,
		2013			2012
	Amortizable intangible assets:
	Core deposit intangibles — gross	$	30,578		30,578
	Acquisitions	—			—
	Less: accumulated amortization	(30,491		)	(30,181	)
	Core deposit intangibles — net	$	87		397

	Customer and Contract intangible assets — gross	6,197			3,779
	Acquisitions	—			2,418
	Less: accumulated amortization	(3,965		)	(3,065	)
	Customer and Contract intangible assets — net	$	2,232		3,132
Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets	'

	For the year ended December 31, 2011	$	1,819
	For the year ended December 31, 2012	1,012
	For the year ended December 31, 2013	1,210
	For the year ending December 31, 2014	814
	For the year ending December 31, 2015	571
	For the year ending December 31, 2016	415
	For the year ending December 31, 2017	259
	For the year ending December 31, 2018	173
Schedule of the changes in carrying amount of goodwill	'

		Community			Consumer
		Banks			Finance		Total
	Balance at December 31, 2011	$	170,269		1,613		171,882
	Goodwill acquired	2,579			—		2,579
	Impairment losses	—			—		—
	Balance at December 31, 2012	172,848			1,613		174,461
	Goodwill acquired	2			—		2
	Impairment losses	—			—		—
	Balance at December 31, 2013	$	172,850		1,613		174,463

Deposits_Tables

Deposits (Tables)	12 Months Ended
Deposits (Tables)	Dec. 31, 2013
Deposits	'
Schedule of deposit balances	'

		December 31,
		2013		2012
	Savings accounts	$	1,191,584	1,158,795
	Interest-bearing checking accounts	852,809		851,771
	Noninterest-bearing checking accounts	789,135		755,429
	Money market deposit accounts	1,167,954		1,112,516
	Certificates of deposit	1,667,397		1,886,089
		$	5,668,879	5,764,600
Summarizes the contractual maturity of the certificate accounts	'

		December 31,
		2013		2012
	Due within 12 months	$	665,779	871,580
	Due between 12 and 24 months	297,653		232,392
	Due between 24 and 36 months	325,281		206,578
	Due between 36 and 48 months	276,858		275,723
	Due between 48 and 60 months	93,278		281,683
	After 60 months	8,548		18,133
		$	1,667,397	1,886,089
Summarizes the interest expense incurred on the deposits	'

		Years ended December 31,
		2013		2012	2011
	Savings accounts	$	3,595	4,219	5,000
	Interest-bearing checking accounts	576		792	960
	Money market deposit accounts	3,042		3,605	4,243
	Certificate accounts	22,066		34,761	50,518
		$	29,279	43,377	60,721

Borrowed_Funds_Tables

Borrowed Funds (Tables)	12 Months Ended
Borrowed Funds (Tables)	Dec. 31, 2013
Borrowed Funds	'
Schedule of borrowed funds	'


		December 31,
		2013				2012
		Amount		Average		Amount	Average
		Amount		rate		Amount	rate
	Term notes payable to the FHLB of Pittsburgh:
	Due within one year	$	2	1.78	%	—	—
	Due between one and two years	110,000		2.53	%	23	1.75	%
	Due between two and three years	145,445		3.24	%	110,000	2.53	%
	Due between three and four years	125,000		3.68	%	145,493	3.24	%
	Due between four and five years	125,000		4.03	%	125,000	3.68	%
	Due between five and ten years	220,000		4.07	%	315,000	4.25	%
		725,447				695,516
	Revolving line of credit, FHLB of Pittsburgh	—		—		—	—
	Securities sold under agreement to repurchase, due within one year	156,198		0.31	%	164,531	0.32	%
	Total borrowed funds	$	881,645			860,047

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2013
Income Taxes	'
Schedule of allocation of income tax	'

		Years ended December 31,
		2013			2012		2011
	Income before income taxes	$	26,331		26,368		26,857
	Shareholders’ equity for unrealized (loss)/ gain on securities available-for-sale	(12,177		)	1,204		7,029
	Shareholders’ equity for tax benefit for excess of fair value above cost of stock benefit plans	(635		)	(403	)	(610	)
	Shareholders’ equity for pension adjustment	9,904			6,056		(11,487	)
	Shareholders’ equity for swap fair value adjustment	1,714			246		(1,506	)
	Goodwill attributable to acquisition	—			863		—
		$	25,137		34,334		20,283
Schedule of income tax expense (benefit) applicable to income before taxes	'


		Years ended December 31,
		2013			2012		2011
	Current	$	24,908		23,073		19,108
	Deferred	1,423			3,295		7,749
		$	26,331		26,368		26,857

Schedule of reconciliation of the expected federal statutory rate to the effective rate	'


		Years ended December 31,
		2013		2012		2011
	Expected tax rate	35	%	35	%	35	%
	Tax-exempt interest income	(4.3	)%	(5.0	)%	(5.4	)%
	State income tax, net of federal benefit	2.1	%	2.8	%	2.9	%
	Bank-owned life insurance	(1.9	)%	(1.9	)%	(2.3	)%
	Dividends on stock plans	(1.1	)%	(1.3	)%	(0.9	)%
	Low income housing and historic tax credits	(1.6	)%	(0.6	)%	-0.6	%
	Other	0.1	%	0.3	%	0.8	%
	Effective tax rate	28.3	%	29.3	%	29.5	%

Tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities	'


		December 31,
		2013			2012
	Deferred tax assets:
	Deferred fee income	$	197		280
	Deferred compensation expense	3,727			3,463
	Net operating loss carryforwards	208			482
	Bad debts	20,700			20,639
	Accrued postretirement benefit cost	716			734
	Stock benefit plans	1,379			1,128
	Writedown of investment securities	5,301			6,032
	Reserve for uncollected interest	2,477			4,194
	Accrued expenses	928			890
	Pension and postretirement benefits	2,202			12,106
	Unrealized loss on the fair value of derivatives	2,813			4,527
	Marketable securities available for sale	2,079			—
	Other	758			582
		43,485			55,057
	Deferred tax liabilities:
	Pension expense	4,827			5,606
	Marketable securities available for sale	—			10,098
	Purchase accounting	1,723			1,808
	Intangible asset	19,438			17,958
	Mortgage servicing rights	677			1,151
	Fixed assets	7,409			7,814
	Other	474			821
		34,548			45,256
	Net deferred tax asset/ (liability)	$	8,937		9,801

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2013
Earnings Per Share	'
Schedule of computation of basic and diluted earnings per share	'

		Years ended December 31,
		2013		2012	2011
	Net income available to common shareholders	$	66,739	63,560	64,151

	Weighted average common shares outstanding	90,626		93,913	99,802
	Dilutive potential shares due to effect of stock options	845		288	376
	Total weighted average common shares and dilutive potential shares	$	91,471	94,201	100,178
	Basic earnings per share:	$	0.74	0.68	0.64
	Diluted earnings per share:	$	0.73	0.68	0.64

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	12 Months Ended
Employee Benefit Plans (Tables)	Dec. 31, 2013
Pension Plans	'
Employee benefit plans	'
Schedule of components of net periodic benefit cost	'

		Years ended December 31,
		2013			2012		2011
	Service cost	$	4,551		7,431		5,713
	Interest cost	5,203			5,729		5,452
	Expected return on plan assets	(8,551		)	(7,793	)	(6,009	)
	Net amortization and deferral	1,356			2,600		516
	Net periodic pension cost	$	2,559		7,967		5,672
Schedule of other changes in the defined benefit pension plans' plan assets and benefit obligations recognized in other comprehensive income	'

		Years ended December 31,
		2013			2012		2011
	Net loss/ (gain)	$	(27,568	)	11,167		29,319
	Prior service cost (credit)	(14		)	(26,919	)	—
	Amortization of prior service cost	2,321			160		160
	Total recognized in other comprehensive income	$	(25,261	)	(15,592	)	29,479
	Total recognized in net periodic pension cost and other comprehensive income/ (loss)	$	(22,702	)	(7,625	)	35,151
Schedule of defined benefit pension plans' funded status	'

		December 31,
		2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	129,802		$	131,927
	Service cost	4,551			7,431
	Interest cost	5,203			5,729
	Amendments (1)	(14		)	(26,919		)
	Actuarial (gain)/ loss	(14,422		)	14,527
	Benefits paid	(3,353		)	(2,893		)
	Benefit obligation at end of year	$	121,767		129,802

	Change in plan assets:
	Fair value of plan assets at beginning of year	115,489			105,159
	Actual return on plan assets	18,020			8,393
	Employer contributions	335			4,830
	Benefits paid	(3,353		)	(2,893		)
	Fair value of plan assets at end of period	$	130,491		115,489
	Funded status at end of year	$	8,724		(14,313		)



	(1) The Retirement Plan was amended to freeze all benefits earned through March 31, 2013 based on the plan formula using years of service and average monthly compensation as of March 31, 2013. The amendments also provide that, for service commencing January 1, 2013, benefits will be earned equal to 1% of career average pay for each year that a participant completes at least 1,000 hours of service. Also, effective April 1, 2013, participants who are eligible to receive required minimum distributions due to attaining age 70 ½ will be required to begin receiving benefits even though they remain employed by us.
Schedule of assumptions used to develop the net periodic pension cost	'

		Years ended December 31,
		2013		2012		2011
	Discount rate	4.06	%	4.39	%	5.57	%
	Expected long-term rate of return on assets	7.5	%	7.5	%	7.5	%
	Rate of increase in compensation levels	3	%	3	%	3	%
Schedule of assumptions used to determine benefit obligations	'

		Years ended December 31,
		2013		2012		2011
	Discount rate	4.86	%	4.06	%	4.39	%
	Expected long-term rate of return on assets	7.5	%	7.5	%	7.5	%
	Rate of increase in compensation levels	3	%	3	%	3	%
Schedule of certain information related to pension plans	'

		December 31,
		2013			2012
	Projected benefit obligation	$	121,767		129,802
	Accumulated benefit obligation	121,767			129,599
	Fair value of plan assets	130,491			115,489

Schedule of weighted average asset allocation of defined benefit plans	'

		Target		December 31,
		Allocation		2013		2012
	Debt securities	20 – 50%		20	%	25	%
	Equity securities	30 – 60%		66	%	57	%
	Other	5 – 50%		14	%	18	%
	Total			100	%	100	%
Schedule of allocation of plan assets	'

		December 31,
		2013			2012
	Mutual funds — debt	$	25,708		29,057
	Mutual funds — equity	86,300			65,346
	Cash	18,483			21,086

Postretirement Healthcare Plan	'
Employee benefit plans	'
Schedule of components of net periodic benefit cost	'

		Years ended December 31,
		2013			2012		2011
	Service cost	$	—		—		—
	Interest cost	63			66		86
	Amortization of net loss	53			50		52
	Net period benefit cost	$	116		116		138
Schedule of other changes in the defined benefit pension plans' plan assets and benefit obligations recognized in other comprehensive income	'

		Years ended December 31,
		2013			2012		2011
	Net loss/ (gain)	$	(136	)	64		(26	)
	Total recognized in other comprehensive income	$	(136	)	64		(26	)
	Total recognized in net periodic benefit cost and other comprehensive income	$	(20	)	180		112
Schedule of defined benefit pension plans' funded status	'

		December 31,
		2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	1,620		1,588
	Service cost	—			—
	Interest cost	63			66
	Actuarial (gain)/ loss	(83		)	114
	Benefits paid	(175		)	(148	)
	Benefit obligation at end of year	$	1,425		1,620

	Change in plan assets:
	Fair value of plan assets at beginning of year	—			—
	Employer contributions	176			148
	Benefits paid	(176		)	(148	)
	Fair value of plan assets at end of year	$	—		—
	Funded status at year end	$	(1,425	)	(1,620	)
Schedule of assumptions used to develop the net periodic pension cost	'

		Years ended December 31,
		2013			2012		2011
	Discount rate	4.06		%	4.39	%	5.57	%
	Monthly cost of healthcare insurance per beneficiary (1)	$	351		327		320
	Annual rate of increase in healthcare costs	4		%	4	%	4	%



	(1) Not in thousands
Schedule of accumulated benefit obligation in excess of plan assets	'

		December 31,
		2013			2012
	Projected benefit obligation	$	1,425		1,620
	Accumulated benefit obligation	1,425			1,620
	Fair value of plan assets	—			—

Schedule of activity under option plans	'
	The following table summarizes the activity in our option plans during the years ended December 31, 2013, 2012 and 2011 (Amounts in this table are not in thousands):

		Years ended December 31,
		2013					2012				2011
		Number		Weighted			Number		Weighted		Number		Weighted
				average					average				average
				exercise					exercise				exercise
				price					price				price

	Balance at beginning of year	7,044,753		$	11.21		6,902,247		$	11	4,184,873		$	9.56
	Granted (1)	590,300		12.44			573,373		11.7		3,207,191		12.28
	Exercised (2)	(727,415	)	10.13			(323,790	)	7.48		(380,778	)	6.06
	Forfeited	(91,344	)	11.82			(107,077	)	11.31		(109,039	)	11.21
	Balance at end of year	6,816,294		$	11.46		7,044,753		$	11.21	6,902,247		$	11
	Exercisable at end of year	2,916,621		$	10.97		2,959,834		$	10.61	2,631,198		$	10.11


	(1) Weighted average fair value of options at grant date: $1.03, $1.23 and $2.16, respectively.
	(2) The total intrinsic value of options exercised was $2.7 million, $1.5 million and $2.3 million, respectively.
Schedule of number of options outstanding, number of options exercisable, and weighted average remaining life of all option grants	'

		Exercise		Exercise		Exercise		Exercise		Exercise	Exercise		Exercise
		price		price		price		price		price	price		price
		$7.48		$9.79		$9.86		$10.19		$11.12	$11.33		$11.49
	Options outstanding:
	Number of options	391,343		413,379		213,106		338,060		345,618	252,220		482,244
	Weighted average remaining contract life (years)	5.25		5		2.25		1.25		4.25	1		6.25
	Options exercisable:
	Number of options	183,316		272,905		213,106		338,060		345,618	252,220		174,501
	Weighted average remaining term - vested (years)	5.25		5		2.25		1.25		4.25	1		6.25

		Exercise		Exercise		Exercise		Exercise		Exercise	Exercise		Exercise		Total
		price		price		price		price		price	price		price		$11.46
		$11.51		$11.70		$12.12		$12.17		$12.32	$12.44		$12.48
	Options outstanding:
	Number of options	301,077		549,955		524,879		21,500		2,392,863	585,550		4,500		6,816,294
	Weighted average remaining contract life (years)	3.25		8.5		7.25		7.5		7.5	9.5		3.5		6.29
	Options exercisable:
	Number of options	301,077		91,257		114,176		71		571,534	54,280		4,500		2,916,621
	Weighted average remaining term - vested (years)	3.25		8.5		7.25		7.5		7.5	9.5		3.5		4.39

Disclosures_About_Fair_Value_o1

Disclosures About Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosures About Fair Value of Financial Instruments	'
Schedule of the carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition	'

		December 31, 2013
		Carrying		Estimated
		amount		fair value		Level 1	Level 2		Level 3
	Financial assets:
	Cash and cash equivalents	$	391,905	391,905		391,905	—		—
	Securities available-for-sale	1,016,767		1,016,767		9,850	994,666		12,251
	Securities held-to-maturity	121,366		124,061		—	124,061		—
	Loans receivable, net	5,734,943		6,026,711		221	—		6,026,490
	Accrued interest receivable	21,821		21,821		21,821	—		—
	FHLB Stock	43,715		43,715		—	—		—
	Total financial assets	$	7,330,517	7,624,980		423,797	1,118,727		6,038,741

	Financial liabilities:
	Savings and checking accounts	$	4,001,482	4,001,482		4,001,482	—		—
	Time deposits	1,667,397		1,699,937		—	—		1,699,937
	Borrowed funds	881,645		896,408		156,198	—		740,210
	Junior subordinated debentures	103,094		111,220		—	—		111,220
	Cash flow hedges - swaps	8,037		8,037		—	8,037		—
	Accrued interest payable	888		888		888	—		—
	Total financial liabilities	$	6,662,543	6,717,972		4,158,568	8,037		2,551,367

		December 31, 2012
		Carrying		Estimated
		amount		fair value		Level 1	Level 2		Level 3
	Financial assets:
	Cash and cash equivalents	$	451,704	451,704		451,704	—		—
	Securities available-for-sale	1,079,074		1,079,074		19,304	1,048,651		11,119
	Securities held-to-maturity	155,081		161,969		—	161,969		—
	Loans receivable, net	5,629,261		5,952,688		15,441	—		5,937,247
	Accrued interest receivable	23,313		23,313		23,313	—		—
	FHLB Stock	46,834		46,834		—	—		—
	Total financial assets	$	7,385,267	7,715,582		509,762	1,210,620		5,948,366

	Financial liabilities:
	Savings and checking accounts	$	3,878,511	3,878,511		3,878,511	—		—
	Time deposits	1,886,089		1,927,844		—	—		1,927,844
	Borrowed funds	860,047		935,384		164,531	—		770,853
	Junior subordinated debentures	103,094		116,066		—	—		116,066
	Cash flow hedges - swaps	12,932		12,932		—	12,932		—
	Accrued interest payable	888		888		888	—		—
	Total financial liabilities	$	6,741,561	6,871,625		4,043,930	12,932		2,814,763
Schedule of assets and liabilities measured at fair value on a recurring basis	'
	The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2013:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

	Equity securities	$	9,850	—		—	9,850

	Debt securities:
	U.S. government and agencies	—		32		—	32
	Government sponsored enterprises	—		316,057		—	316,057
	States and political subdivisions	—		92,578		—	92,578
	Corporate	—		8,925		12,251	21,176
	Total debt securities	—		417,592		12,251	429,843

	Residential mortgage-backed securities:
	GNMA	—		32,263		—	32,263
	FNMA	—		85,665		—	85,665
	FHLMC	—		51,076		—	51,076
	Non-agency	—		667		—	667
	Collateralized mortgage obligations:
	GNMA	—		11,494		—	11,494
	FNMA	—		168,661		—	168,661
	FHLMC	—		210,029		—	210,029
	SBA	—		12,569		—	12,569
	Non-agency	—		4,650		—	4,650
	Total mortgage-backed securities	—		577,074		—	577,074

	Interest rate swaps	—		(8,037	)	—	(8,037	)

	Total assets and liabilities	$	9,850	986,629		12,251	1,008,730

	The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2012:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

	Equity securities	$	19,304	—		—	19,304

	Debt securities:
	U.S. government and agencies	—		40		—	40
	Government sponsored enterprises	—		238,314		—	238,314
	States and political subdivisions	—		134,208		—	134,208
	Corporate	—		11,584		11,119	22,703
	Total debt securities	—		384,146		11,119	395,265

	Residential mortgage-backed securities:
	GNMA	—		41,182		—	41,182
	FNMA	—		106,863		—	106,863
	FHLMC	—		52,559		—	52,559
	Non-agency	—		695		—	695
	Collateralized mortgage obligations:
	GNMA	—		22,963		—	22,963
	FNMA	—		189,364		—	189,364
	FHLMC	—		228,631		—	228,631
	SBA	—		15,775		—	15,775
	Non-agency	—		6,473		—	6,473
	Total mortgage-backed securities	—		664,505		—	664,505

	Interest rate swaps	—		(12,932	)	—	(12,932	)

	Total assets and liabilities	$	19,304	1,035,719		11,119	1,066,142
Schedule of reconciliation of debt securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	'

		December 31,
		2013				2012
		Equity		Debt		Equity	Debt
		securities		securities		securities	securities

	Beginning balance January 1,	$	—	11,119		—	9,657

	Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation):
	Included in net income as OTTI	—		(713	)	—	—
	Included in other comprehensive income	—		1,845		—	1,462

	Purchases	—		—		—	—
	Sales	—		—		—	—
	Transfers into Level 3	—		—		—	—
	Transfers out of Level 3	—		—		—	—

	Ending balance December 31,	$	—	12,251		—	11,119
Schedule of fair value measurement for nonrecurring assets	'
	The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2013:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

	Loans evaluated for impairment	$	—	—		62,730	62,730
	Real estate owned	—		—		18,203	18,203

	Total assets	$	—	—		80,933	80,933

	The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2012:

							Total
							assets at
		Level 1		Level 2		Level 3	fair value

	Loans evaluated for impairment	$	—	—		87,087	87,087
	Real estate owned	—		—		26,165	26,165

	Total assets	$	—	—		113,252	113,252
Schedule of quantitative information about assets measured at fair value on a recurring and nonrecurring basis for Level 3 Fair Value Measurements	'


		Fair value		Valuation		Significant unobservable	Range (weighted average)
		Fair value		techniques		inputs	Range (weighted average)
	Debt securities	$	12,251	Discounted cash		Discount margin	0.35% to 2.10% (0.69)%
				flow		Default rates	1.00%
						Prepayment speeds	1.00% annually

	Loans measured for impairment	62,730		Appraisal		Estimated costs to sell	10%
				value (1)

	Real estate owned	18,203		Appraisal		Estimated costs to sell	10%
				value (1)



	(1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

Regulatory_Capital_Requirement1

Regulatory Capital Requirements (Tables)	12 Months Ended
Regulatory Capital Requirements (Tables)	Dec. 31, 2013
Regulatory Capital Requirements	'
Schedule of actual, required and well capitalized levels	'

		At December 31, 2013
						Minimum capital			Well capitalized
		Actual				requirements (1)			requirements (1)
		Amount		Ratio		Amount	Ratio		Amount	Ratio
	Total capital (to risk weighted assts)
	Northwest Bancshares, Inc.	$	1,147,027	22.46	%	—	—		—	—
	Northwest Savings Bank	946,531		18.6	%	407,062	8	%	508,828	10	%

	Tier I capital (to risk weighted assets)
	Northwest Bancshares, Inc.	1,081,060		21.17	%	—	—		—	—
	Northwest Savings Bank	882,234		17.34	%	203,531	4	%	305,297	6	%

	Tier I capital (leverage) (to total assets)
	Northwest Bancshares, Inc.	1,081,060		13.87	%	—	—		—	—
	Northwest Savings Bank	882,234		11.42	%	309,127	4	%	386,408	5	%


		At December 31, 2012
						Minimum capital			Well capitalized
		Actual				requirements (1)			requirements (1)
		Amount		Ratio		Amount	Ratio		Amount	Ratio
	Total capital (to risk weighted assts)
	Northwest Bancshares, Inc.	$	1,117,979	21.53	%	—	—		—	—
	Northwest Savings Bank	875,676		16.94	%	413,424	8	%	516,780	10	%

	Tier I capital (to risk weighted assets)
	Northwest Bancshares, Inc.	1,050,261		20.22	%	—	—		—	—
	Northwest Savings Bank	810,727		15.69	%	206,712	4	%	310,068	6	%

	Tier I capital (leverage) (to total assets)
	Northwest Bancshares, Inc.	1,050,261		13.43	%	—	—		—	—
	Northwest Savings Bank	810,727		10.41	%	311,473	4	%	389,340	5	%



	(1) The Federal Reserve does not yet have formal capital requirements established for Savings and Loan holding companies.

Components_of_Accumulated_Othe1

Components of Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2013
Components of Accumulated Other Comprehensive Income	'
Schedule of the components of accumulated other comprehensive income	'

		December 31,
		2013			2012
	Unrealized gain on marketable securities available-for-sale	$	(3,233	)	15,853
	Fair value of interest rate swaps	(5,224		)	(8,405	)
	Defined benefit pension plans	(3,443		)	(18,936	)
	Accumulated other comprehensive income	$	(11,900	)	(11,488	)
Schedule of the changes in accumulated other comprehensive income by component	'
	The following table shows the changes in accumulated other comprehensive income by component for the year ended December 31, 2013:

		Unrealized			Change in		Change in		Total
		gains and			fair value of		defined
		losses on			interest rate		benefit
		securities			swaps		pension plans
		available-for-
		sale
	Balance as of January 1,	$	15,853		(8,405	)	(18,936	)	(11,488	)
	Other comprehensive income before reclassification adjustments	(16,544		)	3,181		14,577		1,214
	Amounts reclassified from accumulated other comprehensive income (1), (2)	(2,542		)	—		916		(1,626	)
	Net other comprehensive income	(19,086		)	3,181		15,493		(412	)
	Balance as of December 31,	$	(3,233	)	(5,224	)	(3,443	)	(11,900	)


	(1) Consists of realized gains on securities (gain on sales of investments, net) of $4,881 and other-than-temporary-impairment losses (net impairment losses) of $(713), net of tax (income tax expense) of $1,626.
	(2) Consists of amortization of prior service cost (compensation and employee benefits) of $2,321 and amortization of net loss (compensation and employee benefits) of $(3,730), net of tax (income tax expense) of $493. See note 14.

	The following table shows the changes in accumulated other comprehensive income by component for the year ended December 31, 2012:

		Unrealized			Change in		Change in		Total
		gains and			fair value of		defined
		losses on			interest rate		benefit
		securities			swaps		pension plans
		available-for-
		sale
	Balance as of January 1,	$	14,046		(8,864	)	(28,408	)	(23,226	)
	Other comprehensive income before reclassification adjustments	2,029			459		7,750		10,238
	Amounts reclassified from accumulated other comprehensive income (1), (2)	(222		)	—		1,722		1,500
	Net other comprehensive income	1,807			459		9,472		11,738
	Balance as of December 31,	$	15,853		(8,405	)	(18,936	)	(11,488	)


	(1) Consists of realized gains on securities (gain on sales of investments, net) of $695 and other-than-temporary-impairment losses (net impairment losses) of $(331), net of tax (income tax expense) of $142.
	(2) Consists of amortization of prior service cost (compensation and employee benefits) of $160 and amortization of net loss (compensation and employee benefits) of $(2,810), net of tax (income tax expense) of $928. See note 14.

	The following table shows the changes in accumulated other comprehensive income by component for the year ended December 31, 2011:

		Unrealized			Change in		Change in		Total
		gains and			fair value of		defined
		losses on			interest rate		benefit
		securities			swaps		pension plans
		available-for-
		sale
	Balance as of January 1,	$	3,021		(6,077	)	(10,441	)	(13,497	)
	Other comprehensive income before reclassification adjustments	9,312			(2,787	)	(18,336	)	(11,811	)
	Amounts reclassified from accumulated other comprehensive income (1), (2)	1,713			—		369		2,082
	Net other comprehensive income	11,025			(2,787	)	(17,967	)	(9,729	)
	Balance as of December 31,	$	14,046		(8,864	)	(28,408	)	(23,226	)


	(1) Consists of realized losses on securities (gain on sales of investments, net) of $(1,809) and other-than-temporary-impairment losses (net impairment losses) of $(937), net of tax (income tax expense) of $1,033.
	(2) Consists of amortization of prior service cost (compensation and employee benefits) of $160 and amortization of net loss (compensation and employee benefits) of $(728), net of tax (income tax expense) of $199. See note 14.

Parent_Company_Only_Financial_1

Parent Company Only Financial Statements - Condensed (Tables)	12 Months Ended
	Dec. 31, 2013
Parent Company Only Financial Statements - Condensed	'
Schedule of statements of financial condition	'

		December 31,
		2013			2012
	Assets
	Cash and cash equivalents	$	188,775		227,327
	Marketable securities available-for-sale	8,473			17,907
	Investment in bank subsidiary	1,065,603			997,084
	Other assets	5,205			4,474
	Total assets	$	1,268,056		1,246,792

	Liabilities and Shareholders’ Equity
	Liabilities:
	Debentures payable	$	103,094		103,094
	Other liabilities	8,160			15,229
	Total liabilities	111,254			118,323
	Shareholders’ equity	1,156,802			1,128,469
	Total liabilities and shareholders’ equity	$	1,268,056		1,246,792
Schedule of statements of income	'

		Years ended December 31,
		2013			2012		2011
	Income:
	Interest income	$	1,467		1,442		1,717
	Other income	5,961			773		515
	Dividends from bank subsidiary	—			175,000		122,585
	Undistributed earnings from equity investment in bank subsidiary	66,183			(108,400	)	(55,552	)
	Total income	73,611			68,815		69,265
	Expense:
	Compensation and benefits	1,024			955		649
	Other expense	234			305		368
	Interest expense	5,444			5,717		5,699
	Total expense	6,702			6,977		6,716
	Income before income taxes	66,909			61,838		62,549
	Federal and state income taxes	170			(1,722	)	(1,602	)
	Net income	$	66,739		63,560		64,151
Schedule of statements of cash flows	'

		Years ended December 31,
		2013			2012		2011
	Operating activities:
	Net income	$	66,739		63,560		64,151
	Adjustments to reconcile net income to net cash provided by operating activities:
	Undistributed earnings of subsidiary	(66,183		)	108,400		55,552
	Noncash stock benefit plan compensation expense	5,083			4,623		6,725
	Gain on sale of marketable securities	(5,139		)	—		—
	Net change in other assets and liabilities	(3,692		)	467		(5,692	)
	Net cash (used in)/ provided by operating activities	(3,192		)	177,050		120,736
	Investing activities:
	Net sale/ (purchase) of marketable securities	7,200			(940	)	(11,439	)
	Net cash provided by/ (used in) investing activities	7,200			(940	)	(11,439	)
	Financing activities:
	Cash dividends paid	(45,871		)	(56,862	)	(43,642	)
	Share repurchases	(4,459		)	(52,028	)	(172,690	)
	Repayment of loan to ESOP	1,152			1,116		1,081
	Proceeds from options exercised	6,618			2,131		2,030
	Net cash used in financing activities	(42,560		)	(105,643	)	(213,221	)
	Net (decrease)/ increase in cash and cash equivalents	$	(38,552	)	70,467		(103,924	)
	Cash and cash equivalents at beginning of year	227,327			156,860		260,784
	Net (decrease)/ increase in cash and cash equivalents	(38,552		)	70,467		(103,924	)
	Cash and cash equivalents at end of year	$	188,775		227,327		156,860

Business_Segments_Tables

Business Segments (Tables)	12 Months Ended
Business Segments (Tables)	Dec. 31, 2013
Business Segments	'
Schedule of financial information for reportable segments	'

	At or for the year ended	Community		Consumer	All Other (1)		Consolidated
	December 31, 2013	Banking		Finance	All Other (1)		Consolidated
	External interest income	$	291,194	20,648	1,196		313,038
	Intersegment interest income	2,691		—	(2,691	)	—
	Interest expense	56,282		2,691	2,189		61,162
	Provision for loan losses	15,206		3,313	—		18,519
	Noninterest income	59,987		1,647	5,213		66,847
	Noninterest expense	194,028		12,303	803		207,134
	Income tax expense (benefit)	24,462		1,699	170		26,331
	Net income	$	63,894	2,289	556		66,739
	Total assets	$	7,747,050	109,249	25,177		7,881,476

	At or for the year ended	Community		Consumer	All Other (1)		Consolidated
	December 31, 2012	Banking		Finance	All Other (1)		Consolidated
	External interest income	$	314,514	22,348	1,176		338,038
	Intersegment interest income	2,965		—	(2,965	)	—
	Interest expense	69,976		2,965	2,258		75,199
	Provision for loan losses	22,944		3,394	—		26,338
	Noninterest income	56,684		2,132	88		58,904
	Noninterest expense	191,994		12,678	805		205,477
	Income tax expense (benefit)	25,847		2,243	(1,722	)	26,368
	Net income	$	63,402	3,200	(3,042	)	63,560
	Total assets	$	7,786,529	117,094	38,977		7,942,600

	At or for the year ended	Community		Consumer	All Other (1)		Consolidated
	December 31, 2011	Banking		Finance	All Other (1)		Consolidated
	External interest income	$	336,379	21,799	1,050		359,228
	Intersegment interest income	3,058		—	(3,058	)	—
	Interest expense	87,850		3,058	1,893		92,801
	Provision for loan losses	31,050		3,120	—		34,170
	Noninterest income	56,412		2,513	53		58,978
	Noninterest expense	187,262		12,331	634		200,227
	Income tax expense (benefit)	26,052		2,407	(1,602	)	26,857
	Net income	$	63,635	3,396	(2,880	)	64,151
	Total assets	$	7,802,327	117,068	38,310		7,957,705


	(1) Eliminations consist of intercompany interest income and interest expense.

Guaranteed_Preferred_Beneficia1

Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements (Tables)	12 Months Ended
	Dec. 31, 2013
Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements	'
Schedule of liability derivatives included in other liabilities	'

		December 31,
	Liability Derivatives (Included in Other Liabilities)	2013		2012
	Cash flow hedges — swaps:
	Fair value	$	8,037	12,932
	Notional amount	75,000		100,000
	Collateral posted	8,405		13,505

Summary of guaranteed capital debt securities and junior subordinated deferrable interest debentures held by the trusts	'

		Capital Debt		December 31,
		Securities		2013	2012
	Northwest Bancorp Capital Trust III	$	50,000	51,547	51,547
	Northwest Bancorp Statutory Trust IV	50,000		51,547	51,547
	Total	$	100,000	103,094	103,094

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data - Unaudited (Tables)	12 Months Ended
Selected Quarterly Financial Data - Unaudited (Tables)	Dec. 31, 2013
Selected Quarterly Financial Data - Unaudited	'
Schedule of selected quarterly financial data	'

		Three months ended
		March 31		June 30	September 30	December 31
		(In thousands, except per share data)
	2013:00:00
	Interest income	$	79,633	78,763	77,788	76,854
	Interest expense	15,645		15,436	15,276	14,805
	Net interest income	63,988		63,327	62,512	62,049
	Provision for loan losses	7,158		5,405	4,992	964
	Noninterest income	16,378		13,413	16,109	20,947
	Noninterest expenses	51,471		52,806	50,277	52,580
	Income before income taxes	21,737		18,529	23,352	29,452
	Income tax expense	6,439		5,051	5,752	9,089
	Net income	$	15,298	13,478	17,600	20,363
	Basic earnings per share	$	0.17	0.15	0.19	0.22
	Diluted earnings per share	$	0.17	0.15	0.19	0.22

		Three months ended
		March 31		June 30	September 30	December 31
		(In thousands, except per share data)
	2012:00:00
	Interest income	$	86,034	84,808	83,876	83,320
	Interest expense	20,843		19,096	18,220	17,040
	Net interest income	65,191		65,712	65,656	66,280
	Provision for loan losses	6,287		4,963	6,915	8,173
	Noninterest income	13,855		15,086	15,273	14,690
	Noninterest expenses	51,276		51,966	51,803	50,432
	Income before income taxes	21,483		23,869	22,211	22,365
	Income tax expense	6,302		7,508	6,518	6,040
	Net income	$	15,181	16,361	15,693	16,325
	Basic earnings per share	$	0.16	0.17	0.17	0.18
	Diluted earnings per share	$	0.16	0.17	0.17	0.18

		Three months ended
		March 31		June 30	September 30	December 31
		(In thousands, except per share data)
	2011:00:00
	Interest income	$	90,907	89,997	89,789	88,535
	Interest expense	24,052		23,462	23,019	22,268
	Net interest income	66,855		66,535	66,770	66,267
	Provision for loan losses	7,244		8,367	8,057	10,502
	Noninterest income	14,511		15,406	14,752	14,309
	Noninterest expenses	49,378		52,490	49,923	48,436
	Income before income taxes	24,744		21,084	23,542	21,638
	Income tax expense	7,491		6,081	6,822	6,463
	Net income	$	17,253	15,003	16,720	15,175
	Basic earnings per share	$	0.16	0.15	0.17	0.16
	Diluted earnings per share	$	0.16	0.15	0.17	0.16

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	item	Dec. 31, 2012
Nature of Operations	'	'
Number of banking locations	165	'
Number of consumer finance offices	50	'
Cash and Cash Equivalents	'	'
Maximum term of original maturity to classify instruments as cash and cash equivalents	'3 months	'
Investment Securities	'	'
Securities classified as trading	$0	$0
Loans Receivable	'	'
Period of time to return TDRs included in impaired loans to performing status through the fulfilling of contractual terms	'6 months	'
Residential mortgage loans identified as loans held for sale	221,000	15,400,000
Allowance for Loan Losses and Provision for Loan Losses	'	'
Amount of loans evaluated individually for impairment	115,073,000	127,979,000
Personal Banking	'	'
Allowance for Loan Losses and Provision for Loan Losses	'	'
Amount of loans evaluated individually for impairment	7,477,000	6,936,000
Actual losses incurred through average number of rolling years	'3 years	'
Number of days delinquent for loans to be charged off or charged down unless that borrower has filed for bankruptcy	'180 days	'
Business Banking	'	'
Allowance for Loan Losses and Provision for Loan Losses	'	'
Amount of loans evaluated individually for impairment	107,596,000	121,043,000
Actual losses incurred through average number of rolling years	'3 years	'
Minimum	'	'
Loans Receivable	'	'
Number of days in delinquency for accrued interest on loans to be considered for reversal	'90 days	'
Period of time to return TDRs included in impaired loans to performing status through the fulfilling of contractual terms	'6 months	'
Minimum \| Personal Banking	'	'
Allowance for Loan Losses and Provision for Loan Losses	'	'
Number of days delinquent for allowance for loans	'90 days	'
Minimum \| Business Banking	'	'
Allowance for Loan Losses and Provision for Loan Losses	'	'
Amount of loans evaluated individually for impairment	$1,000,000	'
Maximum	'	'
Loans Receivable	'	'
Number of days delinquent for loans to be placed on non-accrual status	'90 days	'
Allowance for Loan Losses and Provision for Loan Losses	'	'
Number of days for loans not deemed to be impaired	'30 days	'

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details 2)	12 Months Ended
	Dec. 31, 2013
	item
Goodwill	'
Number of valuation methodologies for impairment of goodwill	4
Core Deposit Intangibles	'
Useful life of core deposit intangibles	'7 years
Minimum	'
Premises and Equipment	'
Estimated lives	'3 years
Maximum	'
Premises and Equipment	'
Estimated lives	'39 years

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details 3) (USD $)

12 Months Ended

0 Months Ended

1 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

Dec. 31, 2013

23-May-13

31-May-11

Apr. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

15-May-13

23-May-12

18-May-11

Jan. 19, 2011

Dec. 31, 2013

15-May-13

23-May-12

18-May-11

Apr. 20, 2011

Jan. 19, 2011

Dec. 31, 2013

31-May-11

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

15-May-13

23-May-12

18-May-11

Dec. 31, 2013

15-May-13

23-May-12

18-May-11

Dec. 31, 2013

item

Employees

Stock options

Restricted common shares

ESOP

Minimum

Maximum

Employees

Director

Employees

Director

Stock Related Compensation

Shares awarded

590,300

573,373

3,207,191

511,100

508,573

2,331,898

515,293

511,100

79,200

64,800

270,000

30,000

60,000

79,200

Vesting period

'10 years

'7 years

'10 years

Shares awarded

126,280

240,700

239,077

1,165,949

240,700

29,700

24,300

108,000

29,700

Stock-based aggregate disclosure

Stock-based employee compensation expense

$2.40

$2.10

$2.70

Effect of compensation expense on net income included in income before income taxes

1.6

1.4

1.8

Compensation expense for unvested common share awards which is yet to be recognized

$5.20

Weighted average period over which stock option expense will be recognized

'4 years 4 months 20 days

Weighted average assumptions

Dividend yields (as a percent)

1.60%

5.10%

Expected volatility, minimum (as a percent)

17.00%

Expected volatility, maximum (as a percent)

33.00%

Risk-free interest rates, minimum (as a percent)

1.70%

Risk-free interest rates, maximum (as a percent)

6.50%

Expected lives

'7 years

'9 years

Segment Reporting

Number of reportable segments

Marketable_Securities_Details

Marketable Securities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Amortized cost	'	'
Total	$1,022,078	$1,053,122
Gross unrealized holding gains	'	'
Total	15,257	30,279
Gross unrealized holding losses	'	'
Total	-20,568	-4,327
Fair value	'	'
Total Fair value	1,016,767	1,079,074
Debt issued by the U.S. government and agencies	'	'
Amortized cost	'	'
Due in one year or less	32	40
Fair value	'	'
Due in one year or less	32	40
Debt issued by government sponsored enterprises	'	'
Amortized cost	'	'
Due in one year or less	'	1,999
Due in one year - five years	227,945	140,352
Due in five years - ten years	94,777	95,602
Gross unrealized holding gains	'	'
Due in one year or less	'	5
Due in one year - five years	166	183
Due in five years - ten years	72	460
Gross unrealized holding losses	'	'
Due in one year - five years	-4,041	-22
Due in five years - ten years	-2,862	-265
Fair value	'	'
Due in one year or less	'	2,004
Due in one year - five years	224,070	140,513
Due in five years - ten years	91,987	95,797
Equity securities	'	'
Amortized cost	'	'
Total	5,298	13,301
Gross unrealized holding gains	'	'
Total	4,622	6,025
Gross unrealized holding losses	'	'
Total	-70	-22
Fair value	'	'
Total Fair value	9,850	19,304
Municipal securities	'	'
Amortized cost	'	'
Due in one year or less	710	'
Due in one year - five years	8,443	9,629
Due in five years - ten years	11,228	17,355
Due after ten years	71,068	100,644
Gross unrealized holding gains	'	'
Due in one year or less	10	'
Due in one year - five years	119	233
Due in five years - ten years	275	668
Due after ten years	1,111	5,679
Gross unrealized holding losses	'	'
Due after ten years	-386	'
Fair value	'	'
Due in one year or less	720	'
Due in one year - five years	8,562	9,862
Due in five years - ten years	11,503	18,023
Due after ten years	71,793	106,323
Corporate debt issues	'	'
Amortized cost	'	'
Due after ten years	21,150	24,911
Gross unrealized holding gains	'	'
Due after ten years	475	483
Gross unrealized holding losses	'	'
Due after ten years	-449	-2,691
Fair value	'	'
Due after ten years	21,176	22,703
Residential mortgage-backed securities	'	'
Amortized cost	'	'
Total	581,427	649,289
Gross unrealized holding gains	'	'
Total	8,407	16,543
Gross unrealized holding losses	'	'
Total	-12,760	-1,327
Fair value	'	'
Total Fair value	577,074	664,505
Fixed rate \| Pass-through	'	'
Amortized cost	'	'
Total	85,306	85,134
Gross unrealized holding gains	'	'
Total	3,041	6,266
Gross unrealized holding losses	'	'
Total	-1,075	'
Fair value	'	'
Total Fair value	87,272	91,400
Fixed rate \| Non-agency CMOs	'	'
Amortized cost	'	'
Total	3,894	5,700
Gross unrealized holding gains	'	'
Total	107	156
Gross unrealized holding losses	'	'
Total	-3	-236
Fair value	'	'
Total Fair value	3,998	5,620
Fixed rate \| Agency CMOs	'	'
Amortized cost	'	'
Total	265,769	227,608
Gross unrealized holding gains	'	'
Total	1,060	3,462
Gross unrealized holding losses	'	'
Total	-11,436	-744
Fair value	'	'
Total Fair value	255,393	230,326
Variable rate \| Pass-through	'	'
Amortized cost	'	'
Total	78,890	104,591
Gross unrealized holding gains	'	'
Total	3,525	5,314
Gross unrealized holding losses	'	'
Total	-16	-6
Fair value	'	'
Total Fair value	82,399	109,899
Variable rate \| Non-agency CMOs	'	'
Amortized cost	'	'
Total	660	873
Gross unrealized holding losses	'	'
Total	-9	-20
Fair value	'	'
Total Fair value	651	853
Variable rate \| Agency CMOs	'	'
Amortized cost	'	'
Total	146,908	225,383
Gross unrealized holding gains	'	'
Total	674	1,345
Gross unrealized holding losses	'	'
Total	-221	-321
Fair value	'	'
Total Fair value	$147,361	$226,407

Marketable_Securities_Details_

Marketable Securities (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Amortized cost	'	'
Total	$121,366	$155,081
Gross unrealized holding gains	'	'
Total	2,755	6,902
Gross unrealized holding losses	'	'
Total	-60	-14
Fair value	'	'
Total	124,061	161,969
Municipal securities	'	'
Amortized cost	'	'
Due in five - ten years	8,002	3,679
Due after ten years	61,314	65,596
Gross unrealized holding gains	'	'
Due in five - ten years	172	160
Due after ten years	1,178	3,743
Gross unrealized holding losses	'	'
Due after ten years	27	'
Fair value	'	'
Due in five - ten years	8,174	3,839
Due after ten years	62,465	69,339
Residential mortgage-backed securities	'	'
Amortized cost	'	'
Total	52,050	85,806
Gross unrealized holding gains	'	'
Total	1,405	2,999
Gross unrealized holding losses	'	'
Total	-33	-14
Fair value	'	'
Total	53,422	88,791
Fixed rate \| Pass-through	'	'
Amortized cost	'	'
Total	11,101	16,369
Gross unrealized holding gains	'	'
Total	544	912
Fair value	'	'
Total	11,645	17,281
Fixed rate \| Agency CMOs	'	'
Amortized cost	'	'
Total	34,425	56,713
Gross unrealized holding gains	'	'
Total	780	2,006
Gross unrealized holding losses	'	'
Total	-33	'
Fair value	'	'
Total	35,172	58,719
Variable rate \| Pass-through	'	'
Amortized cost	'	'
Total	5,172	6,548
Gross unrealized holding gains	'	'
Total	71	'
Gross unrealized holding losses	'	'
Total	'	-14
Fair value	'	'
Total	5,243	6,534
Variable rate \| Agency CMOs	'	'
Amortized cost	'	'
Total	1,352	6,176
Gross unrealized holding gains	'	'
Total	10	81
Fair value	'	'
Total	$1,362	$6,257

Marketable_Securities_Details_1

Marketable Securities (Details 3) (USD $)	12 Months Ended
Marketable Securities (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Marketable securities	'	'	'
Carrying value of marketable securities pledged	$695,000,000	'	'
Marketable securities classified as available-for-sale sold	16,003,000	'	'
Gross realized gains	5,800,000	'	'
Gross realized losses	0	'	'
Non-cash credit related other-than-temporary impairment	713,000	331,000	937,000
Residential mortgage-backed securities	'	'	'
Marketable securities	'	'	'
Total residential mortgage-backed securities	629,124,000	750,311,000	'
Residential mortgage-backed securities \| FNMA	'	'	'
Marketable securities	'	'	'
Total residential mortgage-backed securities	279,684,000	341,778,000	'
Residential mortgage-backed securities \| GNMA	'	'	'
Marketable securities	'	'	'
Total residential mortgage-backed securities	66,802,000	97,648,000	'
Residential mortgage-backed securities \| FHLMC	'	'	'
Marketable securities	'	'	'
Total residential mortgage-backed securities	264,752,000	287,942,000	'
Residential mortgage-backed securities \| SBA	'	'	'
Marketable securities	'	'	'
Total residential mortgage-backed securities	12,569,000	15,775,000	'
Residential mortgage-backed securities \| Other (including non-agency)	'	'	'
Marketable securities	'	'	'
Total residential mortgage-backed securities	$5,317,000	$7,168,000	'

Marketable_Securities_Details_2

Marketable Securities (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	item	Dec. 31, 2012
Marketable securities	'	'
Less than 12 months - Fair value	$452,468,000	$238,873,000
Less than 12 months - Unrealized loss	-15,690,000	-1,401,000
12 months or more - Fair value	175,906,000	37,237,000
12 months or more - Unrealized loss	-4,938,000	-2,940,000
Total - Fair value	628,374,000	276,110,000
Total - Unrealized loss	-20,628,000	-4,341,000
Number of investments that are temporarily impaired	119	'
Aggregate carrying amount of cost-method investment	1,138,000,000	'
U.S. government and agencies	'	'
Marketable securities	'	'
Less than 12 months - Fair value	213,915,000	70,128,000
Less than 12 months - Unrealized loss	-4,797,000	-286,000
12 months or more - Fair value	64,635,000	6,537,000
12 months or more - Unrealized loss	-2,106,000	-1,000
Total - Fair value	278,550,000	76,665,000
Total - Unrealized loss	-6,903,000	-287,000
Municipal securities	'	'
Marketable securities	'	'
Less than 12 months - Fair value	12,666,000	'
Less than 12 months - Unrealized loss	-413,000	'
Total - Fair value	12,666,000	'
Total - Unrealized loss	-413,000	'
Number of third party pricing sources	2	'
Maximum fair value as percentage of carrying value to compare the stated interest rate to current market rate	80.00%	'
Municipal securities for which book value exceeds carrying value	0	'
Corporate debt issues	'	'
Marketable securities	'	'
Less than 12 months - Fair value	'	850,000
Less than 12 months - Unrealized loss	'	-39,000
12 months or more - Fair value	1,970,000	12,095,000
12 months or more - Unrealized loss	-449,000	-2,652,000
Total - Fair value	1,970,000	12,945,000
Total - Unrealized loss	-449,000	-2,691,000
Equity securities	'	'
Marketable securities	'	'
Less than 12 months - Fair value	552,000	601,000
Less than 12 months - Unrealized loss	-70,000	-21,000
12 months or more - Fair value	'	17,000
12 months or more - Unrealized loss	'	-1,000
Total - Fair value	552,000	618,000
Total - Unrealized loss	-70,000	-22,000
Residential mortgage-backed securities \| Non-agency CMOs	'	'
Marketable securities	'	'
Less than 12 months - Fair value	1,210,000	'
Less than 12 months - Unrealized loss	-12,000	'
12 months or more - Fair value	'	4,357,000
12 months or more - Unrealized loss	'	-256,000
Total - Fair value	1,210,000	4,357,000
Total - Unrealized loss	-12,000	-256,000
Residential mortgage-backed securities \| Agency CMOs	'	'
Marketable securities	'	'
Less than 12 months - Fair value	224,125,000	167,294,000
Less than 12 months - Unrealized loss	-10,398,000	-1,055,000
12 months or more - Fair value	109,301,000	14,231,000
12 months or more - Unrealized loss	-2,383,000	-30,000
Total - Fair value	333,426,000	181,525,000
Total - Unrealized loss	($12,781,000)	($1,085,000)

Marketable_Securities_Details_3

Marketable Securities (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Marketable securities	'
Total - Amortized cost	$20,413
Total - Fair value	22,292
Total - Unrealized gain	1,879
Accumulated impairment charges	-15,507
Freddie Mac preferred shares	'
Marketable securities	'
Total - Amortized cost	49
Total - Fair value	1,376
Total - Unrealized gain	1,327
Accumulated impairment charges	-4,951
Trust preferred investments	'
Marketable securities	'
Total - Amortized cost	17,259
Total - Fair value	17,704
Total - Unrealized gain	445
Accumulated impairment charges	-9,549
Non-agency CMOs	'
Marketable securities	'
Total - Amortized cost	3,105
Total - Fair value	3,212
Total - Unrealized gain	107
Accumulated impairment charges	($1,007)

Marketable_Securities_Details_4

Marketable Securities (Details 6) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Cumulative roll forward of credit related impairment losses recognized in earnings for debt securities held and not intended to be sold:	'	'
Beginning balance	$9,811	$11,633
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized	713	'
Reduction for losses realized during the year	-182	-2,153
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized	'	331
Ending balance	$10,342	$9,811

Loans_Receivable_and_Allowance2

Loans Receivable and Allowance for Loan Losses (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Loans receivable	'	'	'	'
Total loans receivable, gross	$5,907,258,000	$5,792,509,000	'	'
Deferred loan costs/ (fees)	2,461,000	-1,624,000	'	'
Allowance for loan losses	-71,348,000	-73,219,000	-71,138,000	-76,412,000
Loans receivable, net	5,734,943,000	5,629,261,000	'	'
Serviced loans for others	851,400,000	1,036,000,000	1,150,000,000	'
Percentage of loan portfolio secured by properties located in Pennsylvania	76.00%	75.00%	'	'
Adjustable rate loans	1,771,000,000	1,772,000,000	'	'
Fixed rate loans	4,136,000,000	4,021,000,000	'	'
Residential mortgage loans	'	'	'	'
Loans receivable	'	'	'	'
Undisbursed loan proceeds	-11,595,000	-14,587,000	'	'
Commercial real estate	'	'	'	'
Loans receivable	'	'	'	'
Undisbursed loan proceeds	-56,875,000	-29,868,000	'	'
Commercial loans	'	'	'	'
Loans receivable	'	'	'	'
Undisbursed loan proceeds	-34,958,000	-43,950,000	'	'
Personal Banking	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	3,804,425,000	3,743,864,000	'	'
Allowance for loan losses	-20,607,000	-21,452,000	-22,494,000	-20,339,000
Personal Banking \| Loans held for sale	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	221,000	15,441,000	'	'
Personal Banking \| Residential mortgage loans	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	2,491,917,000	2,416,419,000	'	'
Allowance for loan losses	-7,875,000	-8,002,000	-8,482,000	-6,854,000
Personal Banking \| Home equity loans	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	1,083,939,000	1,083,654,000	'	'
Allowance for loan losses	-7,245,000	-8,294,000	-8,687,000	-7,675,000
Personal Banking \| Other consumer loans	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	228,348,000	228,350,000	'	'
Allowance for loan losses	-5,487,000	-5,156,000	-5,325,000	-5,810,000
Business Banking	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	2,102,833,000	2,048,645,000	'	'
Allowance for loan losses	-46,079,000	-47,741,000	-44,228,000	-51,602,000
Business Banking \| Commercial real estate	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	1,665,274,000	1,615,701,000	'	'
Allowance for loan losses	-34,969,000	-34,499,000	-32,148,000	-35,832,000
Business Banking \| Commercial loans	'	'	'	'
Loans receivable	'	'	'	'
Total loans receivable, gross	437,559,000	432,944,000	'	'
Allowance for loan losses	($11,110,000)	($13,242,000)	($12,080,000)	($15,770,000)

Loans_Receivable_and_Allowance3

Loans Receivable and Allowance for Loan Losses (Details 2) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

$73,219

$71,138

$76,412

$73,219

$71,138

$76,412

Provision

964

4,992

5,405

7,158

8,173

6,915

4,963

6,287

10,502

8,057

8,367

7,244

18,519

26,338

34,170

Charge-offs

-25,844

-30,453

-42,364

Recoveries

5,454

6,196

2,920

Balance at the end of the period

71,348

73,219

71,138

71,348

73,219

71,138

Personal Banking

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

21,452

22,494

20,339

21,452

22,494

20,339

Provision

8,190

11,003

14,681

Charge-offs

-10,795

-14,280

-14,215

Recoveries

1,760

2,235

1,689

Balance at the end of the period

20,607

21,452

22,494

20,607

21,452

22,494

Personal Banking | Residential mortgage loans

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

8,002

8,482

6,854

8,002

8,482

6,854

Provision

1,954

3,287

5,518

Charge-offs

-2,501

-4,295

-4,198

Recoveries

420

528

308

Balance at the end of the period

7,875

8,002

8,482

7,875

8,002

8,482

Personal Banking | Home equity loans

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

8,294

8,687

7,675

8,294

8,687

7,675

Provision

932

3,376

5,619

Charge-offs

-2,239

-4,066

-4,734

Recoveries

258

297

127

Balance at the end of the period

7,245

8,294

8,687

7,245

8,294

8,687

Personal Banking | Other consumer loans

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

5,156

5,325

5,810

5,156

5,325

5,810

Provision

5,304

4,340

3,544

Charge-offs

-6,055

-5,919

-5,283

Recoveries

1,082

1,410

1,254

Balance at the end of the period

5,487

5,156

5,325

5,487

5,156

5,325

Business Banking

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

47,741

44,228

51,602

47,741

44,228

51,602

Provision

9,693

15,725

19,544

Charge-offs

-15,049

-16,173

-28,149

Recoveries

3,694

3,961

1,231

Balance at the end of the period

46,079

47,741

44,228

46,079

47,741

44,228

Business Banking | Commercial real estate loans

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

34,499

32,148

35,832

34,499

32,148

35,832

Provision

8,207

10,447

7,952

Charge-offs

-10,042

-9,919

-12,508

Recoveries

2,305

1,823

872

Balance at the end of the period

34,969

34,499

32,148

34,969

34,499

32,148

Business Banking | Commercial loans

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

13,242

12,080

15,770

13,242

12,080

15,770

Provision

1,486

5,278

11,592

Charge-offs

-5,007

-6,254

-15,641

Recoveries

1,389

2,138

359

Balance at the end of the period

11,110

13,242

12,080

11,110

13,242

12,080

Unallocated

Changes in allowance for losses on allocated loans receivable

Balance at the beginning of the period

4,026

4,416

4,471

4,026

4,416

4,471

Provision

636

-390

-55

Balance at the end of the period

$4,662

$4,026

$4,416

$4,662

$4,026

$4,416

Loans_Receivable_and_Allowance4

Loans Receivable and Allowance for Loan Losses (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	$5,806,291	$5,702,480	'
Allowance for loan losses	66,686	69,193	'
Recorded investment in loans on nonaccrual	107,221	120,212	'
Recorded investment in loans past due 90 days or more and still accruing	690	1,698	'
TDRs	79,166	89,444	69,429
Allowance related to TDRs	8,515	12,774	'
Additional commitments to customers with loans classified as TDRs	755	2,987	'
Nonaccrual TDRs	28,889	41,166	'
Personal Banking	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	3,795,291	3,727,653	'
Allowance for loan losses	20,607	21,452	'
Recorded investment in loans on nonaccrual	39,397	36,177	'
Recorded investment in loans past due 90 days or more and still accruing	667	787	'
TDRs	6,244	6,936	'
Allowance related to TDRs	1,234	1,340	'
Personal Banking \| Residential mortgage loans	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	2,483,004	2,415,649	'
Allowance for loan losses	7,875	8,002	'
Recorded investment in loans on nonaccrual	27,277	25,083	'
Recorded investment in loans past due 90 days or more and still accruing	'	9	'
TDRs	4,004	5,045	'
Allowance related to TDRs	863	1,074	'
Personal Banking \| Home equity loans	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	1,083,939	1,083,654	'
Allowance for loan losses	7,245	8,294	'
Recorded investment in loans on nonaccrual	9,863	9,114	'
Recorded investment in loans past due 90 days or more and still accruing	1	2	'
TDRs	2,240	1,891	'
Allowance related to TDRs	371	266	'
Personal Banking \| Other consumer loans	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	228,348	228,350	'
Allowance for loan losses	5,487	5,156	'
Recorded investment in loans on nonaccrual	2,257	1,980	'
Recorded investment in loans past due 90 days or more and still accruing	666	776	'
Business Banking	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	2,011,000	1,974,827	'
Allowance for loan losses	46,079	47,741	'
Recorded investment in loans on nonaccrual	67,824	84,035	'
Recorded investment in loans past due 90 days or more and still accruing	23	911	'
TDRs	72,922	82,508	'
Allowance related to TDRs	7,281	11,434	'
Additional commitments to customers with loans classified as TDRs	755	2,987	'
Business Banking \| Commercial real estate loans	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	1,608,399	1,585,833	'
Allowance for loan losses	34,969	34,499	'
Recorded investment in loans on nonaccrual	41,803	57,861	'
Recorded investment in loans past due 90 days or more and still accruing	'	388	'
TDRs	48,829	49,826	'
Allowance related to TDRs	4,503	7,322	'
Additional commitments to customers with loans classified as TDRs	301	391	'
Business Banking \| Commercial loans	'	'	'
Loan portfolio by portfolio segment and by class of financing receivable	'	'	'
Recorded investment in loans receivable	402,601	388,994	'
Allowance for loan losses	11,110	13,242	'
Recorded investment in loans on nonaccrual	26,021	26,174	'
Recorded investment in loans past due 90 days or more and still accruing	23	523	'
TDRs	24,093	32,682	'
Allowance related to TDRs	2,778	4,112	'
Additional commitments to customers with loans classified as TDRs	$454	$2,596	'

Loans_Receivable_and_Allowance5

Loans Receivable and Allowance for Loan Losses (Details 4) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	$57,757	$68,347	$95,836
Nonaccrual loans less than 90 days delinquent	49,464	51,865	35,269
Loans less than 90 days delinquent reviewed for impairment	44,418	33,282	22,804
TDRs less than 90 days delinquent not included elsewhere	22,205	30,817	25,449
Total impaired loans	173,844	184,311	179,358
Average recorded investment in impaired loans	175,013	190,476	204,273
Interest income recognized on impaired loans	5,955	6,524	6,036
Personal Banking	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	35,026	34,701	40,448
Nonaccrual loans less than 90 days delinquent	4,371	1,476	'
TDRs less than 90 days delinquent not included elsewhere	5,182	4,363	361
Total impaired loans	44,579	40,540	40,809
Average recorded investment in impaired loans	42,798	40,454	42,645
Interest income recognized on impaired loans	1,150	1,060	754
Personal Banking \| Residential mortgage loans	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	24,625	24,286	28,221
Nonaccrual loans less than 90 days delinquent	2,652	797	'
TDRs less than 90 days delinquent not included elsewhere	3,372	3,011	361
Total impaired loans	30,649	28,094	28,582
Average recorded investment in impaired loans	29,994	28,078	30,731
Interest income recognized on impaired loans	723	683	538
Personal Banking \| Home equity loans	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	8,344	8,479	9,560
Nonaccrual loans less than 90 days delinquent	1,519	635	'
TDRs less than 90 days delinquent not included elsewhere	1,810	1,352	'
Total impaired loans	11,673	10,466	9,560
Average recorded investment in impaired loans	10,828	10,535	9,574
Interest income recognized on impaired loans	383	342	182
Personal Banking \| Other consumer loans	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	2,057	1,936	2,667
Nonaccrual loans less than 90 days delinquent	200	44	'
Total impaired loans	2,257	1,980	2,667
Average recorded investment in impaired loans	1,976	1,841	2,340
Interest income recognized on impaired loans	44	35	34
Business Banking	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	22,731	33,646	55,388
Nonaccrual loans less than 90 days delinquent	45,093	50,389	35,269
Loans less than 90 days delinquent reviewed for impairment	44,418	33,282	22,804
TDRs less than 90 days delinquent not included elsewhere	17,023	26,454	25,088
Total impaired loans	129,265	143,771	138,549
Average recorded investment in impaired loans	132,215	150,022	161,628
Interest income recognized on impaired loans	4,805	5,464	5,282
Business Banking \| Commercial real estate loans	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	18,433	24,550	44,603
Nonaccrual loans less than 90 days delinquent	23,370	33,311	17,891
Loans less than 90 days delinquent reviewed for impairment	39,199	33,282	15,467
TDRs less than 90 days delinquent not included elsewhere	13,060	16,274	16,097
Total impaired loans	94,062	107,417	94,058
Average recorded investment in impaired loans	90,912	98,891	101,731
Interest income recognized on impaired loans	3,678	3,636	3,640
Business Banking \| Commercial loans	'	'	'
Composition of impaired loans by portfolio segment and by class of financing receivable	'	'	'
Nonaccrual loans 90 or more days delinquent	4,298	9,096	10,785
Nonaccrual loans less than 90 days delinquent	21,723	17,078	17,378
Loans less than 90 days delinquent reviewed for impairment	5,219	'	7,337
TDRs less than 90 days delinquent not included elsewhere	3,963	10,180	8,991
Total impaired loans	35,203	36,354	44,491
Average recorded investment in impaired loans	41,303	51,131	59,897
Interest income recognized on impaired loans	$1,127	$1,828	$1,642

Loans_Receivable_and_Allowance6

Loans Receivable and Allowance for Loan Losses (Details 5) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	$5,691,218	$5,574,501
Loans individually evaluated for impairment	115,073	127,979
Loans individually evaluated for impairment for which there is a related impairment reserve	74,633	103,694
Related impairment reserve	11,903	16,607
Loans individually evaluated for impairment for which there is no related impairment reserve	40,440	24,285
Personal Banking	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	3,787,814	3,720,717
Loans individually evaluated for impairment	7,477	6,936
Loans individually evaluated for impairment for which there is a related impairment reserve	7,477	6,936
Related impairment reserve	1,470	1,181
Personal Banking \| Residential mortgage loans	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	2,477,888	2,410,604
Loans individually evaluated for impairment	5,116	5,045
Loans individually evaluated for impairment for which there is a related impairment reserve	5,116	5,045
Related impairment reserve	1,136	992
Personal Banking \| Home equity loans	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	1,081,699	1,081,763
Loans individually evaluated for impairment	2,240	1,891
Loans individually evaluated for impairment for which there is a related impairment reserve	2,240	1,891
Related impairment reserve	333	189
Personal Banking \| Other consumer loans	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	228,227	228,350
Loans individually evaluated for impairment	121	'
Loans individually evaluated for impairment for which there is a related impairment reserve	121	'
Related impairment reserve	1	'
Business Banking	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	1,903,404	1,853,784
Loans individually evaluated for impairment	107,596	121,043
Loans individually evaluated for impairment for which there is a related impairment reserve	67,156	96,758
Related impairment reserve	10,433	15,426
Loans individually evaluated for impairment for which there is no related impairment reserve	40,440	24,285
Business Banking \| Commercial real estate loans	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	1,532,117	1,501,032
Loans individually evaluated for impairment	76,282	84,801
Loans individually evaluated for impairment for which there is a related impairment reserve	45,761	61,136
Related impairment reserve	6,300	9,789
Loans individually evaluated for impairment for which there is no related impairment reserve	30,521	23,665
Business Banking \| Commercial loans	'	'
Evaluation of impaired loans by portfolio segment and by class of financing receivable	'	'
Loans collectively evaluated for impairment	371,287	352,752
Loans individually evaluated for impairment	31,314	36,242
Loans individually evaluated for impairment for which there is a related impairment reserve	21,395	35,622
Related impairment reserve	4,133	5,637
Loans individually evaluated for impairment for which there is no related impairment reserve	$9,919	$620

Loans_Receivable_and_Allowance7

Loans Receivable and Allowance for Loan Losses (Details 6) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	item	item	item
Troubled debt restructurings by portfolio segment and by class of financing receivable	'	'	'
Period of time to return TDRs included in impaired loans to performing status through the fulfilling of contractual terms	'6 months	'	'
Number of contract	'	'	'
Number of contracts beginning balance	276	225	47
Number of contracts new TDRs	121	201	44
Number of contracts ending balance	276	225	47
Roll forward of troubled debt restructurings	'	'	'
Beginning TDR balance:	$89,444	$69,429	'
New TDRs	31,111	56,845	'
Net paydowns	-25,715	-25,205	'
Ending TDR balance:	79,166	89,444	69,429
Accruing TDRs	50,277	48,278	'
Non-accrual TDRs	28,889	41,166	'
Troubled debt restructurings:	'	'	'
Number of contracts	121	201	44
Recorded investment at the time of modification	31,111	56,845	40,184
Current recorded investment	24,961	47,244	38,204
Current allowance	1,111	7,010	2,132
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	33	20	12
Recorded investment at the time of modification	16,366	4,855	14,480
Current recorded investment	5,448	3,440	3,603
Current allowance	908	1,014	793
Residential mortgage loans	'	'	'
Number of contract	'	'	'
Number of contracts charged off	4	3	'
Number of contracts paid off	2	'	'
Roll forward of troubled debt restructurings	'	'	'
Amount of contracts charged off	-357	-38	'
Amount of contracts paid off	-502	'	'
Home equity loans	'	'	'
Number of contract	'	'	'
Number of contracts charged off	5	6	'
Number of contracts paid off	5	'	'
Roll forward of troubled debt restructurings	'	'	'
Amount of contracts charged off	-120	-126	'
Amount of contracts paid off	-24	'	'
Commercial real estate loans	'	'	'
Number of contract	'	'	'
Number of contracts charged off	4	2	'
Number of contracts paid off	10	9	'
Roll forward of troubled debt restructurings	'	'	'
Amount of contracts charged off	-1,063	-554	'
Amount of contracts paid off	-6,927	-8,537	'
Commercial loans	'	'	'
Number of contract	'	'	'
Number of contracts charged off	9	1	'
Number of contracts paid off	30	2	'
Number of contracts transferred to real estate owned	1	'	'
Roll forward of troubled debt restructurings	'	'	'
Amount of contracts charged off	-389	-1,986	'
Amount of contracts paid off	-4,222	-384	'
Transferred to real estate owned	-2,070	'	'
Personal Banking	'	'	'
Number of contract	'	'	'
Number of contracts new TDRs	16	77	2
Troubled debt restructurings:	'	'	'
Number of contracts	16	77	2
Recorded investment at the time of modification	1,030	8,207	894
Current recorded investment	1,011	6,936	806
Current allowance	168	1,282	128
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	7	2	'
Recorded investment at the time of modification	1,133	529	'
Current recorded investment	795	429	'
Current allowance	330	153	'
Personal Banking \| Residential mortgage loans	'	'	'
Number of contract	'	'	'
Number of contracts new TDRs	4	35	2
Troubled debt restructurings:	'	'	'
Number of contracts	4	35	2
Recorded investment at the time of modification	374	6,136	894
Current recorded investment	319	5,045	806
Current allowance	50	1,016	128
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	5	2	'
Recorded investment at the time of modification	950	529	'
Current recorded investment	607	429	'
Current allowance	160	153	'
Personal Banking \| Home equity loans	'	'	'
Number of contract	'	'	'
Number of contracts new TDRs	12	42	'
Troubled debt restructurings:	'	'	'
Number of contracts	12	42	'
Recorded investment at the time of modification	656	2,071	'
Current recorded investment	692	1,891	'
Current allowance	118	266	'
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	2	'	'
Recorded investment at the time of modification	183	'	'
Current recorded investment	188	'	'
Current allowance	170	'	'
Business Banking	'	'	'
Number of contract	'	'	'
Number of contracts new TDRs	105	124	42
Troubled debt restructurings:	'	'	'
Number of contracts	105	124	42
Recorded investment at the time of modification	30,081	48,638	39,290
Current recorded investment	23,950	40,308	37,398
Current allowance	943	5,728	2,004
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	26	18	12
Recorded investment at the time of modification	15,233	4,326	14,480
Current recorded investment	4,653	3,011	3,603
Current allowance	578	861	793
Business Banking \| Commercial real estate loans	'	'	'
Number of contract	'	'	'
Number of contracts new TDRs	58	58	21
Troubled debt restructurings:	'	'	'
Number of contracts	58	58	21
Recorded investment at the time of modification	16,760	19,582	21,617
Current recorded investment	11,196	17,724	21,387
Current allowance	781	2,509	1,358
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	15	8	8
Recorded investment at the time of modification	5,281	2,870	3,616
Current recorded investment	3,488	2,346	2,218
Current allowance	533	786	516
Business Banking \| Commercial loans	'	'	'
Number of contract	'	'	'
Number of contracts new TDRs	47	66	21
Troubled debt restructurings:	'	'	'
Number of contracts	47	66	21
Recorded investment at the time of modification	13,321	29,056	17,673
Current recorded investment	12,754	22,584	16,011
Current allowance	162	3,219	646
Troubled debt restructurings that subsequently defaulted:	'	'	'
Number of contracts	11	10	4
Recorded investment at the time of modification	9,952	1,456	10,864
Current recorded investment	1,165	665	1,385
Current allowance	$45	$75	$277

Loans_Receivable_and_Allowance8

Loans Receivable and Allowance for Loan Losses (Details 7) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	item	item
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Number of re-modified TDRs	14	12
Total	$11,549	$8,821
Rate	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	152	2,547
Payment	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	316	'
Maturity date	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	11,081	5,739
Other	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	'	535
Personal Banking	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Number of re-modified TDRs	1	'
Total	89	'
Personal Banking \| Payment	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	89	'
Personal Banking \| Home equity loans	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Number of re-modified TDRs	1	'
Total	89	'
Personal Banking \| Home equity loans \| Payment	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	89	'
Business Banking	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Number of re-modified TDRs	13	12
Total	11,460	8,821
Business Banking \| Rate	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	152	2,547
Business Banking \| Payment	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	227	'
Business Banking \| Maturity date	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	11,081	5,739
Business Banking \| Other	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	'	535
Business Banking \| Commercial real estate loans	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Number of re-modified TDRs	8	5
Total	850	2,693
Business Banking \| Commercial real estate loans \| Rate	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	152	800
Business Banking \| Commercial real estate loans \| Payment	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	227	'
Business Banking \| Commercial real estate loans \| Maturity date	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	471	1,662
Business Banking \| Commercial real estate loans \| Other	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	'	231
Business Banking \| Commercial loans	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Number of re-modified TDRs	5	7
Total	10,610	6,128
Business Banking \| Commercial loans \| Rate	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	'	1,747
Business Banking \| Commercial loans \| Maturity date	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	10,610	4,077
Business Banking \| Commercial loans \| Other	'	'
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable	'	'
Total	'	$304

Loans_Receivable_and_Allowance9

Loans Receivable and Allowance for Loan Losses (Details 8) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loan payment delinquencies	'	'	'
30-59 days delinquent	$56,639	$61,145	'
60-89 days delinquent	17,200	27,948	'
90 days or greater delinquent	57,757	68,347	95,836
Total delinquency	131,596	157,440	'
Current	5,674,695	5,545,040	'
Total loans	5,806,291	5,702,480	'
Personal Banking	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	38,947	44,911	'
60-89 days delinquent	11,677	13,194	'
90 days or greater delinquent	35,026	34,701	40,448
Total delinquency	85,650	92,806	'
Current	3,709,641	3,634,847	'
Total loans	3,795,291	3,727,653	'
Personal Banking \| Residential mortgage loans	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	27,486	32,921	'
60-89 days delinquent	7,568	9,387	'
90 days or greater delinquent	24,625	24,286	28,221
Total delinquency	59,679	66,594	'
Current	2,423,325	2,349,055	'
Total loans	2,483,004	2,415,649	'
Personal Banking \| Home equity loans	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	6,946	6,534	'
60-89 days delinquent	2,243	1,977	'
90 days or greater delinquent	8,344	8,479	9,560
Total delinquency	17,533	16,990	'
Current	1,066,406	1,066,664	'
Total loans	1,083,939	1,083,654	'
Personal Banking \| Other consumer loans	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	4,515	5,456	'
60-89 days delinquent	1,866	1,830	'
90 days or greater delinquent	2,057	1,936	2,667
Total delinquency	8,438	9,222	'
Current	219,910	219,128	'
Total loans	228,348	228,350	'
Business Banking	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	17,692	16,234	'
60-89 days delinquent	5,523	14,754	'
90 days or greater delinquent	22,731	33,646	55,388
Total delinquency	45,946	64,634	'
Current	1,965,054	1,910,193	'
Total loans	2,011,000	1,974,827	'
Business Banking \| Commercial real estate loans	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	8,449	13,001	'
60-89 days delinquent	3,968	4,596	'
90 days or greater delinquent	18,433	24,550	44,603
Total delinquency	30,850	42,147	'
Current	1,577,549	1,543,686	'
Total loans	1,608,399	1,585,833	'
Business Banking \| Commercial loans	'	'	'
Loan payment delinquencies	'	'	'
30-59 days delinquent	9,243	3,233	'
60-89 days delinquent	1,555	10,158	'
90 days or greater delinquent	4,298	9,096	10,785
Total delinquency	15,096	22,487	'
Current	387,505	366,507	'
Total loans	$402,601	$388,994	'

Recovered_Sheet1

Loans Receivable and Allowance for Loan Losses (Details 9) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Credit quality indicators	'	'
Total loans	$5,806,291	$5,702,480
Pass	'	'
Credit quality indicators	'	'
Total loans	5,510,838	5,370,444
Special mention	'	'
Credit quality indicators	'	'
Total loans	58,602	81,207
Substandard	'	'
Credit quality indicators	'	'
Total loans	232,342	244,951
Doubtful	'	'
Credit quality indicators	'	'
Total loans	3,188	4,829
Loss	'	'
Credit quality indicators	'	'
Total loans	1,321	1,049
Special mention or substandard \| Minimum	'	'
Credit quality indicators	'	'
Total loans	1,000	'
Personal Banking	'	'
Credit quality indicators	'	'
Total loans	3,795,291	3,727,653
Personal Banking \| Pass	'	'
Credit quality indicators	'	'
Total loans	3,766,574	3,698,098
Personal Banking \| Substandard	'	'
Credit quality indicators	'	'
Total loans	27,396	28,458
Personal Banking \| Doubtful	'	'
Credit quality indicators	'	'
Total loans	'	48
Personal Banking \| Loss	'	'
Credit quality indicators	'	'
Total loans	1,321	1,049
Personal Banking \| Residential mortgage loans	'	'
Credit quality indicators	'	'
Total loans	2,483,004	2,415,649
Personal Banking \| Residential mortgage loans \| Pass	'	'
Credit quality indicators	'	'
Total loans	2,464,057	2,395,809
Personal Banking \| Residential mortgage loans \| Substandard	'	'
Credit quality indicators	'	'
Total loans	17,626	18,743
Personal Banking \| Residential mortgage loans \| Doubtful	'	'
Credit quality indicators	'	'
Total loans	'	48
Personal Banking \| Residential mortgage loans \| Loss	'	'
Credit quality indicators	'	'
Total loans	1,321	1,049
Personal Banking \| Home equity loans	'	'
Credit quality indicators	'	'
Total loans	1,083,939	1,083,654
Personal Banking \| Home equity loans \| Pass	'	'
Credit quality indicators	'	'
Total loans	1,075,595	1,075,200
Personal Banking \| Home equity loans \| Substandard	'	'
Credit quality indicators	'	'
Total loans	8,344	8,454
Personal Banking \| Other consumer loans	'	'
Credit quality indicators	'	'
Total loans	228,348	228,350
Personal Banking \| Other consumer loans \| Pass	'	'
Credit quality indicators	'	'
Total loans	226,922	227,089
Personal Banking \| Other consumer loans \| Substandard	'	'
Credit quality indicators	'	'
Total loans	1,426	1,261
Business Banking	'	'
Credit quality indicators	'	'
Total loans	2,011,000	1,974,827
Business Banking \| Pass	'	'
Credit quality indicators	'	'
Total loans	1,744,264	1,672,346
Business Banking \| Special mention	'	'
Credit quality indicators	'	'
Total loans	58,602	81,207
Business Banking \| Substandard	'	'
Credit quality indicators	'	'
Total loans	204,946	216,493
Business Banking \| Doubtful	'	'
Credit quality indicators	'	'
Total loans	3,188	4,781
Business Banking \| Commercial real estate loans	'	'
Credit quality indicators	'	'
Total loans	1,608,399	1,585,833
Business Banking \| Commercial real estate loans \| Pass	'	'
Credit quality indicators	'	'
Total loans	1,398,652	1,352,118
Business Banking \| Commercial real estate loans \| Special mention	'	'
Credit quality indicators	'	'
Total loans	46,557	68,130
Business Banking \| Commercial real estate loans \| Substandard	'	'
Credit quality indicators	'	'
Total loans	161,906	163,751
Business Banking \| Commercial real estate loans \| Doubtful	'	'
Credit quality indicators	'	'
Total loans	1,284	1,834
Business Banking \| Commercial loans	'	'
Credit quality indicators	'	'
Total loans	402,601	388,994
Business Banking \| Commercial loans \| Pass	'	'
Credit quality indicators	'	'
Total loans	345,612	320,228
Business Banking \| Commercial loans \| Special mention	'	'
Credit quality indicators	'	'
Total loans	12,045	13,077
Business Banking \| Commercial loans \| Substandard	'	'
Credit quality indicators	'	'
Total loans	43,040	52,742
Business Banking \| Commercial loans \| Doubtful	'	'
Credit quality indicators	'	'
Total loans	$1,904	$2,947

Recovered_Sheet2

Loans Receivable and Allowance for Loan Losses (Details 10) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Financial instruments with off-balance-sheet risk	'	'
Financial instruments with off-balance-sheet risk	$634,679,000	$525,780,000
Recourse provisions for recovery of amounts from third parties	0	0
Loan commitments	'	'
Financial instruments with off-balance-sheet risk	'	'
Financial instruments with off-balance-sheet risk	174,998,000	66,973,000
Outstanding loan commitments for fixed rate loans	55,100,000	'
Outstanding loan commitments for adjustable rate loans	119,900,000	'
Undisbursed lines of credit	'	'
Financial instruments with off-balance-sheet risk	'	'
Financial instruments with off-balance-sheet risk	432,334,000	401,685,000
Standby letters of credit	'	'
Financial instruments with off-balance-sheet risk	'	'
Financial instruments with off-balance-sheet risk	27,347,000	57,122,000
Maximum potential amount of future payments	27,300,000	'
Maximum potential amount of future payments fully collateralized	26,700,000	'
Liability recognized for the obligations	$897,000	$843,000

Recovered_Sheet3

Loans Receivable and Allowance for Loan Losses (Details 11) (MSRs, USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Servicing rights	'	'
Balance at the beginning of the period	$3,291,000	$3,655,000
Additions	461,000	2,285,000
Amortization	-1,818,000	-2,649,000
Balance at the end of the period	1,934,000	3,291,000
Net carrying value and fair value	'	'
Balance at the beginning of the period	3,291,000	3,655,000
Additions	461,000	2,285,000
Amortization	-1,818,000	-2,649,000
Balance at the end of the period	1,934,000	3,291,000
Weighted Average	'	'
Additional information about the inputs used to determine the fair value of mortgage servicing right	'	'
Variable rate basis of loan receivable	'5 year LIBOR swap	'5 year LIBOR swap
Forward yield curve (as a percent)	1.47%	0.75%
Prepayment rates (as a percent)	10.90%	22.70%
Annual service cost per loan	$68	$77
Average life expectancy	'82 months	'45 months
Option adjusted spread	7.50%	8.00%

Accrued_Interest_Receivable_De

Accrued Interest Receivable (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accrued Interest Receivable	'	'
Investment securities	$2,205	$2,354
Mortgage-backed securities	1,079	1,359
Loans receivable	18,537	19,600
Accrued interest receivable	$21,821	$23,313

Federal_Home_Loan_Bank_Stock_D

Federal Home Loan Bank Stock (Details) (USD $)	12 Months Ended
Federal Home Loan Bank Stock (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Federal Home Loan Bank Stock	'	'
Minimum investment in capital stock of FHLB, at cost, as a percentage of borrowings outstanding	4.00%	'
Minimum investment in capital stock of FHLB, at cost, as a percentage of member asset value, as defined by FHLB	0.35%	'
Minimum investment in capital stock of FHLB, at cost, as a percentage of certain letters of credit	1.60%	'
Amount of excess stock repurchased by FHLB	$3,100,000	$2,100,000
Dividend received on capital stock	$371,000	$87,000

Premises_and_Equipment_Details

Premises and Equipment (Details) (USD $)	12 Months Ended
Premises and Equipment (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Premises and Equipment	'	'	'
Total, at cost	$290,819,000	$275,206,000	'
Less accumulated depreciation and amortization	-144,680,000	-136,382,000	'
Premises and equipment, net	146,139,000	138,824,000	'
Depreciation and amortization expense	11,900,000	11,500,000	11,700,000
Land and land improvements	'	'	'
Premises and Equipment	'	'	'
Total, at cost	20,041,000	17,308,000	'
Office buildings and improvements	'	'	'
Premises and Equipment	'	'	'
Total, at cost	152,428,000	139,167,000	'
Furniture, fixtures and equipment	'	'	'
Premises and Equipment	'	'	'
Total, at cost	106,139,000	106,433,000	'
Leasehold improvements	'	'	'
Premises and Equipment	'	'	'
Total, at cost	$12,211,000	$12,298,000	'

Premises_and_Equipment_Details1

Premises and Equipment (Details 2) (USD $)	12 Months Ended
Premises and Equipment (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Minimum annual rentals	'	'	'
2014	$3,808,000	'	'
2015	3,068,000	'	'
2016	2,636,000	'	'
2017	2,099,000	'	'
2018	1,547,000	'	'
Thereafter	5,144,000	'	'
Total	18,302,000	'	'
Rental expense	$4,200,000	$4,900,000	$4,300,000

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Amortizable intangible assets:	'	'	'
Amortization expense	$1,210	$1,012	$1,819
Estimated amortization expense	'	'	'
For the year ending December 31, 2014	814	'	'
For the year ending December 31, 2015	571	'	'
For the year ending December 31, 2016	415	'	'
For the year ending December 31, 2017	259	'	'
For the year ending December 31, 2018	173	'	'
Core Deposits	'	'	'
Amortizable intangible assets:	'	'	'
Intangible asset - gross	30,578	30,578	'
Less: accumulated amortization	-30,491	-30,181	'
Intangible asset - net	87	397	'
Customer and Contract	'	'	'
Amortizable intangible assets:	'	'	'
Intangible asset - gross	6,197	3,779	'
Acquisitions	'	2,418	'
Less: accumulated amortization	-3,965	-3,065	'
Intangible asset - net	$2,232	$3,132	'

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Dec. 31, 2013	Dec. 31, 2012	Community Banks	Community Banks	Consumer Finance	Consumer Finance	Consumer Finance
Changes in the carrying amount of goodwill	'	'	'	'	'	'	'
Balance at the beginning of the period	$174,461	$171,882	$172,848	$170,269	$1,613	$1,613	$1,613
Goodwill acquired	2	2,579	2	2,579	'	'	'
Balance at the end of the period	$174,463	$174,461	$172,850	$172,848	$1,613	$1,613	$1,613

Deposits_Details

Deposits (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	item	Dec. 31, 2012	Dec. 31, 2011
Deposits	'	'	'
Savings accounts	$1,191,584,000	$1,158,795,000	'
Interest-bearing checking accounts	852,809,000	851,771,000	'
Noninterest-bearing checking accounts	789,135,000	755,429,000	'
Money market deposit accounts	1,167,954,000	1,112,516,000	'
Certificates of deposit	1,667,397,000	1,886,089,000	'
Deposits	5,668,879,000	5,764,600,000	'
Aggregate amount of certificates of deposit with a minimum denomination of $100,000	413,100,000	475,500,000	'
Number of customers participating in CDARS Program	12	'	'
CDARS program balance	985,000	'	'
Maximum amount of customer deposits that are federally insured	250,000	'	'
Deposits in accounts exceeding $250,000	1,032,000,000	'	'
Contractual maturity of the certificate accounts	'	'	'
Due within 12 months	665,779,000	871,580,000	'
Due between 12 and 24 months	297,653,000	232,392,000	'
Due between 24 and 36 months	325,281,000	206,578,000	'
Due between 36 and 48 months	276,858,000	275,723,000	'
Due between 48 and 60 months	93,278,000	281,683,000	'
After 60 months	8,548,000	18,133,000	'
Total	1,667,397,000	1,886,089,000	'
Interest expense incurred on deposits	'	'	'
Savings accounts	3,595,000	4,219,000	5,000,000
Interest-bearing checking accounts	576,000	792,000	960,000
Money market deposit accounts	3,042,000	3,605,000	4,243,000
Certificate accounts	22,066,000	34,761,000	50,518,000
Total interest expense	$29,279,000	$43,377,000	$60,721,000

Borrowed_Funds_Details

Borrowed Funds (Details) (USD $)	12 Months Ended		6 Months Ended	12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013	Dec. 31, 2010	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Dec. 31, 2013	Dec. 31, 2012	Term notes payable to the FHLB of Pittsburgh:	Term notes payable to the FHLB of Pittsburgh:	Term notes payable to the FHLB of Pittsburgh:	Term notes payable to the FHLB of Pittsburgh:	Revolving line of credit, FHLB of Pittsburgh	Securities sold under agreement to repurchase, due within one year	Securities sold under agreement to repurchase, due within one year	Securities sold under agreement to repurchase, due within one year
Borrowed Funds	'	'	'	'	'	'	'	'	'	'
Amount due within one year	'	'	'	'	$2,000	'	'	$156,198,000	$164,531,000	'
Due between one and two years, Amount	'	'	'	'	110,000,000	23,000	'	'	'	'
Due between two and three years, Amount	'	'	'	'	145,445,000	110,000,000	'	'	'	'
Due between three and four years, Amount	'	'	'	'	125,000,000	145,493,000	'	'	'	'
Due between four and five years, Amount	'	'	'	'	125,000,000	125,000,000	'	'	'	'
Due between five and ten years, Amount	'	'	'	'	220,000,000	315,000,000	'	'	'	'
Total borrowed funds	881,645,000	860,047,000	'	'	725,447,000	695,516,000	'	'	'	'
Due within one year, Average Rate (as a percent)	'	'	'	'	1.78%	'	'	0.31%	0.32%	'
Due between one and two years, Avg. Rate (as a percent)	'	'	'	'	2.53%	1.75%	'	'	'	'
Due between two and three years, Avg. Rate (as a percent)	'	'	'	'	3.24%	2.53%	'	'	'	'
Due between three and four years, Avg. Rate (as a percent)	'	'	'	'	3.68%	3.24%	'	'	'	'
Due between four and five years, Avg. Rate (as a percent)	'	'	'	'	4.03%	3.68%	'	'	'	'
Due between five and ten years, Avg. Rate (as a percent)	'	'	'	'	4.07%	4.25%	'	'	'	'
Proceeds from advances	30,000,000	'	30,000,000	'	'	'	'	'	'	'
Maturities between seven and ten years, weighted effective interest rate (as a percent)	'	'	2.03%	'	'	'	'	'	'	'
Restructured borrowings	'	'	'	695,000,000	'	'	'	'	'	'
Percentage reduction in annual cost due to restructuring	'	'	'	0.22%	'	'	'	'	'	'
Extension in maturity period due to restructuring	'	'	'	'3 years 6 months	'	'	'	'	'	'
Penalty in conjunction with restructuring	'	'	'	52,200,000	'	'	'	'	'	'
Amount of penalty in conjunction with restructuring which remains to be amortized	'	'	'	'	28,700,000	'	'	'	'	'
Maximum commitment	'	'	'	'	'	'	150,000,000	'	'	'
Average amount of agreements outstanding	'	'	'	'	'	'	'	150,100,000	154,600,000	140,800,000
Maximum amount of outstanding security repurchase agreements	'	'	'	'	'	'	'	$171,800,000	$176,500,000	$151,800,000

Income_Taxes_Details

Income Taxes (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Allocation of total income tax

Income before income taxes

$9,089

$5,752

$5,051

$6,439

$6,040

$6,518

$7,508

$6,302

$6,463

$6,822

$6,081

$7,491

$26,331

$26,368

$26,857

Shareholders' equity for unrealized (loss)/ gain on securities available-for-sale

-12,177

1,204

7,029

Shareholders' equity for tax benefit for excess of fair value above cost of stock benefit plans

-635

-403

-610

Shareholders' equity for pension adjustment

9,904

6,056

-11,487

Shareholders' equity for swap fair value adjustment

1,714

246

-1,506

Goodwill attributable to acquisition

863

Unallocated income tax

25,137

34,334

20,283

Income tax expense (benefit) applicable to income before taxes

Current

24,908

23,073

19,108

Deferred

1,423

3,295

7,749

Total provision for income taxes

9,089

5,752

5,051

6,439

6,040

6,518

7,508

6,302

6,463

6,822

6,081

7,491

26,331

26,368

26,857

Reconciliation of the expected federal statutory income tax rate to the effective rate

Expected tax rate (as a percent)

35.00%

Tax-exempt interest income (as a percent)

-4.30%

-5.00%

-5.40%

State income tax, net of federal benefit (as a percent)

2.10%

2.80%

2.90%

Bank-owned life insurance (as a percent)

-1.90%

-2.30%

Dividends on stock plans (as a percent)

-1.10%

-1.30%

-0.90%

Low income housing and historic tax credits (as a percent)

-1.60%

-0.60%

Other (as a percent)

0.10%

0.30%

0.80%

Effective tax rate (as a percent)

28.30%

29.30%

29.50%

Deferred tax assets:

Deferred fee income

197

280

197

280

Deferred compensation expense

3,727

3,463

3,727

3,463

Net operating loss carryforwards

208

482

208

482

Bad debts

20,700

20,639

20,700

20,639

Accrued postretirement benefit cost

716

734

716

734

Stock benefit plans

1,379

1,128

1,379

1,128

Writedown of investment securities

5,301

6,032

5,301

6,032

Reserve for uncollected interest

2,477

4,194

2,477

4,194

Accrued expenses

928

890

928

890

Pension and postretirement benefits

2,202

12,106

2,202

12,106

Unrealized loss on the fair value of derivatives

2,813

4,527

2,813

4,527

Marketable securities available for sale

2,079

Other

758

582

758

582

Total deferred tax assets

43,485

55,057

43,485

55,057

Deferred tax liabilities:

Pension expense

4,827

5,606

4,827

5,606

Marketable securities available for sale

10,098

Purchase accounting

1,723

1,808

1,723

1,808

Intangible asset

19,438

17,958

19,438

17,958

Mortgage servicing rights

677

1,151

677

1,151

Fixed assets

7,409

7,814

7,409

7,814

Other

474

821

474

821

Total deferred tax liabilities

34,548

45,256

34,548

45,256

Net deferred tax asset/ (liability)

8,937

9,801

8,937

9,801

Valuation allowance for deferred tax assets

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	Dec. 31, 2013
Operating loss carryforwards	'
Unrecognized tax benefits	$0
Accrued amount for interest or the payment of penalties	0
Federal	'
Operating loss carryforwards	'
Net operating losses	$594,000

Shareholders_Equity_Details

Shareholders' Equity (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Shareholders' Equity	'	'
Bad debt deductions for which no deferred income taxes have been provided	$39.10	$39.10

Earnings_Per_Share_Details

Earnings Per Share (Details) (Stock options, USD $)	12 Months Ended
Earnings Per Share (Details) (Stock options, USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock options	'	'	'
Antidilutive securities excluded from the calculation of earnings per share	'	'	'
Average share price during the reporting period (in dollars per share)	$13.25	$12.11	$12.16
Options excluded from the calculation of earnings per share (in shares)	'	3,101,881	2,606,398
Weighted average share price during the reporting period (in dollars per share)	'	$12.28	$12.32

Earnings_Per_Share_Details_2

Earnings Per Share (Details 2) (USD $)	3 Months Ended												12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Net income available to common shareholders	$20,363	$17,600	$13,478	$15,298	$16,325	$15,693	$16,361	$15,181	$15,175	$16,720	$15,003	$17,253	$66,739	$63,560	$64,151
Weighted average common shares outstanding	'	'	'	'	'	'	'	'	'	'	'	'	90,626	93,913	99,802
Dilutive potential shares due to effect of stock options	'	'	'	'	'	'	'	'	'	'	'	'	845	288	376
Total weighted average common shares and dilutive potential shares	'	'	'	'	'	'	'	'	'	'	'	'	91,471	94,201	100,178
Basic earnings per share (in dollars per share)	$0.22	$0.19	$0.15	$0.17	$0.18	$0.17	$0.17	$0.16	$0.16	$0.17	$0.15	$0.16	$0.74	$0.68	$0.64
Diluted earnings per share (in dollars per share)	$0.22	$0.19	$0.15	$0.17	$0.18	$0.17	$0.17	$0.16	$0.16	$0.17	$0.15	$0.16	$0.73	$0.68	$0.64

Employee_Benefit_Plans_Details

Employee Benefit Plans (Details) (USD $)	12 Months Ended
Employee Benefit Plans (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Plans	'	'	'
Employee benefit plans	'	'	'
Employer contribution match, percentage of employee's contribution	50.00%	'	'
Total expense for all retirement plans	$4,100,000	$9,300,000	$7,000,000
Employee age required to participate in the plan	'70 years 6 months	'	'
Components of net periodic pension cost	'	'	'
Service cost	4,551,000	7,431,000	5,713,000
Interest cost	5,203,000	5,729,000	5,452,000
Expected return on plan assets	-8,551,000	-7,793,000	-6,009,000
Net amortization and deferral	1,356,000	2,600,000	516,000
Amortization of net loss	1,400,000	'	'
Net periodic benefit cost	2,559,000	7,967,000	5,672,000
Other changes in the defined benefit pension plans' plan assets and benefit obligations recognized in other comprehensive income	'	'	'
Net loss (gain)	-27,568,000	11,167,000	29,319,000
Prior service cost (credit)	-14,000	-26,919,000	'
Amortization of prior service cost	2,321,000	160,000	160,000
Total recognized in other comprehensive income	-25,261,000	-15,592,000	29,479,000
Total recognized in net periodic pension cost and other comprehensive income/ (loss)	-22,702,000	-7,625,000	35,151,000
Pension Plans \| Maximum	'	'	'
Employee benefit plans	'	'	'
Maximum employer contribution match, percentage of employee compensation	6.00%	'	'
Postretirement Healthcare Plan	'	'	'
Components of net periodic pension cost	'	'	'
Interest cost	63,000	66,000	86,000
Amortization of net loss	53,000	50,000	52,000
Net periodic benefit cost	116,000	116,000	138,000
Other changes in the defined benefit pension plans' plan assets and benefit obligations recognized in other comprehensive income	'	'	'
Net loss (gain)	-136,000	64,000	-26,000
Total recognized in other comprehensive income	-136,000	64,000	-26,000
Total recognized in net periodic pension cost and other comprehensive income/ (loss)	-20,000	180,000	112,000
Estimated net loss for the postretirement healthcare benefit plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost	$48,000	'	'
Postretirement Healthcare Plan \| Minimum	'	'	'
Employee benefit plans	'	'	'
Employee age required to participate in the plan	'55 years	'	'

Employee_Benefit_Plans_Details1

Employee Benefit Plans (Details 2) (USD $)	12 Months Ended
Employee Benefit Plans (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Plans	'	'	'
Estimated net loss and prior service cost that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	'	'	'
Estimated net loss that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	$1,400,000	'	'
Prior service credit that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	-2,300,000	'	'
Change in benefit obligation:	'	'	'
Benefit obligation at beginning of year	129,802,000	131,927,000	'
Service cost	4,551,000	7,431,000	5,713,000
Interest cost	5,203,000	5,729,000	5,452,000
Amendments	-14,000	-26,919,000	'
Actuarial (gain)/ loss	-14,422,000	14,527,000	'
Benefits paid	-3,353,000	-2,893,000	'
Benefit obligation at end of year	121,767,000	129,802,000	131,927,000
Change in plan assets:	'	'	'
Fair value of plan assets at beginning of year	115,489,000	105,159,000	'
Actual return on plan assets	18,020,000	8,393,000	'
Employer contributions	335,000	4,830,000	'
Benefits paid	-3,353,000	-2,893,000	'
Fair value of plan assets at end of period	130,491,000	115,489,000	105,159,000
Funded status at end of year	8,724,000	-14,313,000	'
Additional information	'	'	'
Benefits as a percentage of career average pay for each year	1.00%	'	'
Number of hours of service need to be completed to avail additional benefit under amendment	'1000 hours	'	'
Employee age required to participate in the plan	'70 years 6 months	'	'
Assumptions used to develop the net periodic pension cost	'	'	'
Discount rate (as a percent)	4.06%	4.39%	5.57%
Expected long-term rate of return on assets (as a percent)	7.50%	7.50%	7.50%
Rate of increase in compensation levels (as a percent)	3.00%	3.00%	3.00%
Assumptions used to determine benefit obligations	'	'	'
Discount rate (as a percent)	4.86%	4.06%	4.39%
Expected long-term rate of return on assets (as a percent)	7.50%	7.50%	7.50%
Rate of increase in compensation levels (as a percent)	3.00%	3.00%	3.00%
Postretirement Healthcare Plan	'	'	'
Estimated net loss and prior service cost that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	'	'	'
Estimated net loss that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	53,000	50,000	52,000
Change in benefit obligation:	'	'	'
Benefit obligation at beginning of year	1,620,000	1,588,000	'
Interest cost	63,000	66,000	86,000
Actuarial (gain)/ loss	-83,000	114,000	'
Benefits paid	-175,000	-148,000	'
Benefit obligation at end of year	1,425,000	1,620,000	1,588,000
Change in plan assets:	'	'	'
Employer contributions	176,000	148,000	'
Benefits paid	-175,000	-148,000	'
Funded status at end of year	-1,425,000	-1,620,000	'
Assumptions used to develop the net periodic pension cost	'	'	'
Discount rate (as a percent)	4.06%	4.39%	5.57%
Monthly cost of healthcare insurance per beneficiary	$351	$327	$320
Annual rate of increase in healthcare costs (as a percent)	4.00%	4.00%	4.00%

Employee_Benefit_Plans_Details2

Employee Benefit Plans (Details 3) (Pension Plans, USD $)	12 Months Ended
Employee Benefit Plans (Details 3) (Pension Plans, USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee benefit plans	'	'	'
Accumulated benefit obligation for funded defined benefit pension plan	$116,800,000	$124,500,000	$102,400,000
Accumulated benefit obligation for unfunded defined benefit pension plan	5,000,000	5,100,000	4,900,000
Certain information related to pension plans	'	'	'
Projected benefit obligation	121,767,000	129,802,000	131,927,000
Accumulated benefit obligation	121,767,000	129,599,000	'
Fair value of plan assets	$130,491,000	$115,489,000	$105,159,000
Target allocation of any one stock, maximum (as a percent)	10.00%	'	'
Maximum average maturity of bond portfolio	'10 years	'	'
Target Allocation	'	'	'
Total (as a percent)	100.00%	100.00%	'
Debt securities	'	'	'
Target Allocation	'	'	'
Target Allocation of securities, minimum (as a percent)	20.00%	'	'
Target Allocation of securities, maximum (as a percent)	50.00%	'	'
Total (as a percent)	20.00%	25.00%	'
Equity securities	'	'	'
Target Allocation	'	'	'
Target Allocation of securities, minimum (as a percent)	30.00%	'	'
Target Allocation of securities, maximum (as a percent)	60.00%	'	'
Total (as a percent)	66.00%	57.00%	'
Other	'	'	'
Target Allocation	'	'	'
Target Allocation of securities, minimum (as a percent)	5.00%	'	'
Target Allocation of securities, maximum (as a percent)	50.00%	'	'
Total (as a percent)	14.00%	18.00%	'

Employee_Benefit_Plans_Details3

Employee Benefit Plans (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
	Pension Plans	Pension Plans	Pension Plans	Pension Plans	Pension Plans	Pension Plans	Pension Plans	Pension Plans	Pension Plans	Postretirement Healthcare Plan	Postretirement Healthcare Plan
				Level 1	Level 1	Level 1	Level 1	Level 1	Level 1
				Mutual funds-debt	Mutual funds-debt	Mutual funds-equity	Mutual funds-equity	Cash	Cash
Employee benefit plans	'	'	'	'	'	'	'	'	'	'	'
Pension plan assets	$130,491,000	$115,489,000	$105,159,000	$25,708,000	$29,057,000	$86,300,000	$65,346,000	$18,483,000	$21,086,000	'	'
Benefits expected to be paid in each year	'	'	'	'	'	'	'	'	'	'	'
2014	3,700,000	'	'	'	'	'	'	'	'	'	'
2015	3,900,000	'	'	'	'	'	'	'	'	'	'
2016	4,400,000	'	'	'	'	'	'	'	'	'	'
2017	4,700,000	'	'	'	'	'	'	'	'	'	'
2018	5,100,000	'	'	'	'	'	'	'	'	'	'
2019 to 2023	30,800,000	'	'	'	'	'	'	'	'	'	'
Effect of 1-percent increase in the assumed health care cost trend rates	'	'	'	'	'	'	'	'	'	'	'
Effect of 1-percent increase on health care cost percentage	'	'	'	'	'	'	'	'	'	5.00%	'
Effect of 1-percent increase in assumed health care cost trend rates on interest cost in current period	'	'	'	'	'	'	'	'	'	8,000	'
Effect of 1-percent increase in assumed health care cost trend rates on postretirement benefit obligation	'	'	'	'	'	'	'	'	'	57,000	'
Accumulated benefit obligation in excess of plan assets	'	'	'	'	'	'	'	'	'	'	'
Projected benefit obligation	'	'	'	'	'	'	'	'	'	1,425,000	1,620,000
Accumulated benefit obligation	'	'	'	'	'	'	'	'	'	$1,425,000	$1,620,000

Employee_Benefit_Plans_Details4

Employee Benefit Plans (Details 5) (Employee Stock Ownership Plan, USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Stock Ownership Plan	'	'	'
Employee stock ownership plan	'	'	'
Minimum employee age required to participate in the plan	'21 years	'	'
Period of service to be completed to participate in the plan	'12 months	'	'
Minimum number of working hours required for employees to participate in the plan	'1000 hours	'	'
Outstanding balance of loan	$24.40	'	'
Compensation expense	1.7	1.5	1.5
Number of shares to be released each December 31	126,280	'	'
Number of shares of common stock unallocated	2,020,490	'	'
Unallocated shares, fair value	$29.90	'	'

Employee_Benefit_Plans_Details5

Employee Benefit Plans (Details 6) (USD $)

0 Months Ended

1 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

23-May-13

15-May-13

23-May-12

18-May-11

Apr. 20, 2011

Jan. 19, 2011

31-May-11

Apr. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

21-May-08

Recognition and Retention Plan

Recognition and Retention Plan and Stock Option Plans

Weighted average grant date fair value of shares issued (in dollars per share)

$12.55

$11.64

$12.34

Market value of shares issued

$3.40

$3.10

$15.70

Number of shares forfeited

68,079

20,945

Vesting period

'10 years

Percentage of granted awards which will vest

20.00%

Vesting period from award date

'1 year

Recognition and Retention Plan | 2011 Equity Incentive Plan

Recognition and Retention Plan and Stock Option Plans

Number of shares authorized

2,806,233

Recognition and Retention Plan | 2011 issuance

Recognition and Retention Plan and Stock Option Plans

Percentage of granted awards which will vest

30.00%

Recognition and Retention Plan | 2012 issuance

Recognition and Retention Plan and Stock Option Plans

Percentage of granted awards which will vest

20.00%

Recognition and Retention Plan | 2013 issuance

Recognition and Retention Plan and Stock Option Plans

Percentage of granted awards which will vest

10.00%

Stock options

Recognition and Retention Plan and Stock Option Plans

Number of shares authorized

3,937,500

Vesting period

'10 years

'7 years

'10 years

Vesting period from award date

'1 year

Exercisable period

'10 years

Number

Balance at beginning of year (in shares)

7,044,753

6,902,247

4,184,873

Granted (in shares)

590,300

573,373

3,207,191

Exercised (in shares)

-727,415

-323,790

-380,778

Forfeited (in shares)

-91,344

-107,077

-109,039

Balance at end of year (in shares)

6,816,294

7,044,753

6,902,247

Exercisable at end of year (in shares)

2,916,621

2,959,834

2,631,198

Weighted average exercise price

Balance at beginning of year (in dollars per share)

$11.21

$11

$9.56

Granted (in dollars per share)

$12.44

$11.70

$12.32

$12.17

$12.12

$12.44

$11.70

$12.28

Exercised (in dollars per share)

$10.13

$7.48

$6.06

Forfeited (in dollars per share)

$11.82

$11.31

$11.21

Balance at end of year (in dollars per share)

$11.46

$11.21

$11

Exercisable at end of year (in dollars per share)

$10.97

$10.61

$10.11

Additional disclosure

Weighted average fair value of options at grant date (in dollars per share)

$1.03

$1.23

$2.16

Total intrinsic value of options exercised

2.7

1.5

2.3

Aggregate intrinsic value of all options expected to vest

11.5

Aggregate intrinsic value of all options fully vested

$11.10

Stock options | 2011 Equity Incentive Plan

Recognition and Retention Plan and Stock Option Plans

Number of shares authorized

7,015,583

Outside Director | Recognition and Retention Plan

Recognition and Retention Plan and Stock Option Plans

Number of shares issued

29,700

24,300

108,000

29,700

Outside Director | Stock options

Number

Granted (in shares)

79,200

64,800

270,000

30,000

60,000

79,200

Employees | Recognition and Retention Plan

Recognition and Retention Plan and Stock Option Plans

Number of shares issued

240,700

239,077

1,165,949

240,700

Employees | Stock options

Number

Granted (in shares)

511,100

508,573

2,331,898

515,293

511,100

Employee_Benefit_Plans_Details6

Employee Benefit Plans (Details 7) (USD $)	12 Months Ended
Employee Benefit Plans (Details 7) (USD $)	Dec. 31, 2013
Exercise price $7.48	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$7.48
Options outstanding:	'
Number of options (in shares)	391,343
Weighted average remaining contract life	'5 years 3 months
Options exercisable:	'
Number of options (in shares)	183,316
Weighted average remaining term - vested	'5 years 3 months
Exercise price $9.79	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$9.79
Options outstanding:	'
Number of options (in shares)	413,379
Weighted average remaining contract life	'5 years
Options exercisable:	'
Number of options (in shares)	272,905
Weighted average remaining term - vested	'5 years
Exercise price $9.86	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$9.86
Options outstanding:	'
Number of options (in shares)	213,106
Weighted average remaining contract life	'2 years 3 months
Options exercisable:	'
Number of options (in shares)	213,106
Weighted average remaining term - vested	'2 years 3 months
Exercise price $10.19	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$10.19
Options outstanding:	'
Number of options (in shares)	338,060
Weighted average remaining contract life	'1 year 3 months
Options exercisable:	'
Number of options (in shares)	338,060
Weighted average remaining term - vested	'1 year 3 months
Exercise price $11.12	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$11.12
Options outstanding:	'
Number of options (in shares)	345,618
Weighted average remaining contract life	'4 years 3 months
Options exercisable:	'
Number of options (in shares)	345,618
Weighted average remaining term - vested	'4 years 3 months
Exercise price $11.33	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$11.33
Options outstanding:	'
Number of options (in shares)	252,220
Weighted average remaining contract life	'1 year
Options exercisable:	'
Number of options (in shares)	252,220
Weighted average remaining term - vested	'1 year
Exercise price $11.49	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$11.49
Options outstanding:	'
Number of options (in shares)	482,244
Weighted average remaining contract life	'6 years 3 months
Options exercisable:	'
Number of options (in shares)	174,501
Weighted average remaining term - vested	'6 years 3 months
Exercise price $11.51	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$11.51
Options outstanding:	'
Number of options (in shares)	301,077
Weighted average remaining contract life	'3 years 3 months
Options exercisable:	'
Number of options (in shares)	301,077
Weighted average remaining term - vested	'3 years 3 months
Exercise price $11.70	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$11.70
Options outstanding:	'
Number of options (in shares)	549,955
Weighted average remaining contract life	'8 years 6 months
Options exercisable:	'
Number of options (in shares)	91,257
Weighted average remaining term - vested	'8 years 6 months
Exercise price $12.12	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$12.12
Options outstanding:	'
Number of options (in shares)	524,879
Weighted average remaining contract life	'7 years 3 months
Options exercisable:	'
Number of options (in shares)	114,176
Weighted average remaining term - vested	'7 years 3 months
Exercise price $12.17	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$12.17
Options outstanding:	'
Number of options (in shares)	21,500
Weighted average remaining contract life	'7 years 6 months
Options exercisable:	'
Number of options (in shares)	71
Weighted average remaining term - vested	'7 years 6 months
Exercise price $12.32	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$12.32
Options outstanding:	'
Number of options (in shares)	2,392,863
Weighted average remaining contract life	'9 years 6 months
Options exercisable:	'
Number of options (in shares)	571,534
Weighted average remaining term - vested	'7 years 6 months
Exercise price $12.44	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$12.44
Options outstanding:	'
Number of options (in shares)	585,550
Weighted average remaining contract life	'9 years 6 months
Options exercisable:	'
Number of options (in shares)	54,280
Weighted average remaining term - vested	'9 years 6 months
Exercise price $12.48	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$12.48
Options outstanding:	'
Number of options (in shares)	4,500
Weighted average remaining contract life	'3 years 6 months
Options exercisable:	'
Number of options (in shares)	4,500
Weighted average remaining term - vested	'3 years 6 months
$11.46	'
Outstanding and exercisable options	'
Exercise price (in dollars per share)	$11.46
Options outstanding:	'
Number of options (in shares)	6,816,294
Weighted average remaining contract life	'6 years 3 months 14 days
Options exercisable:	'
Number of options (in shares)	2,916,621
Weighted average remaining term - vested	'4 years 4 months 20 days

Disclosures_About_Fair_Value_o2

Disclosures About Fair Value of Financial Instruments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Disclosures About Fair Value of Financial Instruments	'	'
Significant unrealized appreciation or depreciation in financial instruments	$0	$0
Financial assets:	'	'
Securities available-for-sale	1,016,767,000	1,079,074,000
Securities held-to-maturity	124,061,000	161,969,000
Accrued interest receivable	21,821,000	23,313,000
Financial liabilities:	'	'
Borrowed funds	881,645,000	860,047,000
Junior subordinated debentures	103,094,000	103,094,000
Assets transferred between Level 1 and Level 2	0	0
Liabilities transferred between Level 1 and Level 2	0	0
Level 1	'	'
Financial assets:	'	'
Cash and cash equivalents	391,905,000	451,704,000
Securities available-for-sale	9,850,000	19,304,000
Loans receivable, net	221,000	15,441,000
Accrued interest receivable	21,821,000	23,313,000
Total financial assets	423,797,000	509,762,000
Financial liabilities:	'	'
Savings and checking accounts	4,001,482,000	3,878,511,000
Borrowed funds	156,198,000	164,531,000
Accrued interest payable	888,000	888,000
Total financial liabilities	4,158,568,000	4,043,930,000
Level 2	'	'
Financial assets:	'	'
Securities available-for-sale	994,666,000	1,048,651,000
Securities held-to-maturity	124,061,000	161,969,000
Total financial assets	1,118,727,000	1,210,620,000
Financial liabilities:	'	'
Cash flow hedges - swaps	8,037,000	12,932,000
Total financial liabilities	8,037,000	12,932,000
Level 3	'	'
Financial assets:	'	'
Securities available-for-sale	12,251,000	11,119,000
Loans receivable, net	6,026,490,000	5,937,247,000
Total financial assets	6,038,741,000	5,948,366,000
Financial liabilities:	'	'
Time deposits	1,699,937,000	1,927,844,000
Borrowed funds	740,210,000	770,853,000
Junior subordinated debentures	111,220,000	116,066,000
Total financial liabilities	2,551,367,000	2,814,763,000
Carrying amount	'	'
Financial assets:	'	'
Cash and cash equivalents	391,905,000	451,704,000
Securities available-for-sale	1,016,767,000	1,079,074,000
Securities held-to-maturity	121,366,000	155,081,000
Loans receivable, net	5,734,943,000	5,629,261,000
Accrued interest receivable	21,821,000	23,313,000
FHLB Stock	43,715,000	46,834,000
Total financial assets	7,330,517,000	7,385,267,000
Financial liabilities:	'	'
Savings and checking accounts	4,001,482,000	3,878,511,000
Time deposits	1,667,397,000	1,886,089,000
Borrowed funds	881,645,000	860,047,000
Junior subordinated debentures	103,094,000	103,094,000
Cash flow hedges - swaps	8,037,000	12,932,000
Accrued interest payable	888,000	888,000
Total financial liabilities	6,662,543,000	6,741,561,000
Estimated fair value	'	'
Financial assets:	'	'
Cash and cash equivalents	391,905,000	451,704,000
Securities available-for-sale	1,016,767,000	1,079,074,000
Securities held-to-maturity	124,061,000	161,969,000
Loans receivable, net	6,026,711,000	5,952,688,000
Accrued interest receivable	21,821,000	23,313,000
FHLB Stock	43,715,000	46,834,000
Total financial assets	7,624,980,000	7,715,582,000
Financial liabilities:	'	'
Savings and checking accounts	4,001,482,000	3,878,511,000
Time deposits	1,699,937,000	1,927,844,000
Borrowed funds	896,408,000	935,384,000
Junior subordinated debentures	111,220,000	116,066,000
Cash flow hedges - swaps	8,037,000	12,932,000
Accrued interest payable	888,000	888,000
Total financial liabilities	$6,717,972,000	$6,871,625,000

Disclosures_About_Fair_Value_o3

Disclosures About Fair Value of Financial Instruments (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	$1,016,767	$1,079,074
Level 1	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	9,850	19,304
Total financial assets	423,797	509,762
Level 2	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	994,666	1,048,651
Interest rate swaps	-8,037	-12,932
Total financial assets	1,118,727	1,210,620
Level 3	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	12,251	11,119
Total financial assets	6,038,741	5,948,366
Measured on recurring basis	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Total financial assets	1,008,730	1,066,142
Measured on recurring basis \| Equity securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	9,850	19,304
Measured on recurring basis \| Debt securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	429,843	395,265
Measured on recurring basis \| Debt securities \| U.S. government and agencies	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	32	40
Measured on recurring basis \| Debt securities \| Government sponsored enterprises	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	316,057	238,314
Measured on recurring basis \| Debt securities \| States and political subdivisions	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	92,578	134,208
Measured on recurring basis \| Debt securities \| Corporate	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	21,176	22,703
Measured on recurring basis \| Mortgage-backed securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	577,074	664,505
Measured on recurring basis \| Residential mortgage-backed securities \| GNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	32,263	41,182
Measured on recurring basis \| Residential mortgage-backed securities \| FNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	85,665	106,863
Measured on recurring basis \| Residential mortgage-backed securities \| FHLMC	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	51,076	52,559
Measured on recurring basis \| Residential mortgage-backed securities \| Non-agency	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	667	695
Measured on recurring basis \| Collateralized mortgage obligations \| GNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	11,494	22,963
Measured on recurring basis \| Collateralized mortgage obligations \| FNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	168,661	189,364
Measured on recurring basis \| Collateralized mortgage obligations \| FHLMC	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	210,029	228,631
Measured on recurring basis \| Collateralized mortgage obligations \| SBA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	12,569	15,775
Measured on recurring basis \| Collateralized mortgage obligations \| Non-agency	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	4,650	6,473
Measured on recurring basis \| Interest rate swaps	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Interest rate swaps	-8,037	-12,932
Measured on recurring basis \| Level 1	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Total financial assets	9,850	19,304
Measured on recurring basis \| Level 1 \| Equity securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	9,850	19,304
Measured on recurring basis \| Level 2	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Total financial assets	986,629	1,035,719
Measured on recurring basis \| Level 2 \| Debt securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	417,592	384,146
Measured on recurring basis \| Level 2 \| Debt securities \| U.S. government and agencies	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	32	40
Measured on recurring basis \| Level 2 \| Debt securities \| Government sponsored enterprises	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	316,057	238,314
Measured on recurring basis \| Level 2 \| Debt securities \| States and political subdivisions	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	92,578	134,208
Measured on recurring basis \| Level 2 \| Debt securities \| Corporate	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	8,925	11,584
Measured on recurring basis \| Level 2 \| Mortgage-backed securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	577,074	664,505
Measured on recurring basis \| Level 2 \| Residential mortgage-backed securities \| GNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	32,263	41,182
Measured on recurring basis \| Level 2 \| Residential mortgage-backed securities \| FNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	85,665	106,863
Measured on recurring basis \| Level 2 \| Residential mortgage-backed securities \| FHLMC	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	51,076	52,559
Measured on recurring basis \| Level 2 \| Residential mortgage-backed securities \| Non-agency	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	667	695
Measured on recurring basis \| Level 2 \| Collateralized mortgage obligations \| GNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	11,494	22,963
Measured on recurring basis \| Level 2 \| Collateralized mortgage obligations \| FNMA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	168,661	189,364
Measured on recurring basis \| Level 2 \| Collateralized mortgage obligations \| FHLMC	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	210,029	228,631
Measured on recurring basis \| Level 2 \| Collateralized mortgage obligations \| SBA	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	12,569	15,775
Measured on recurring basis \| Level 2 \| Collateralized mortgage obligations \| Non-agency	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Mortgage-backed securities	4,650	6,473
Measured on recurring basis \| Level 2 \| Interest rate swaps	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Interest rate swaps	-8,037	-12,932
Measured on recurring basis \| Level 3	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Total financial assets	12,251	11,119
Measured on recurring basis \| Level 3 \| Debt securities	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	12,251	11,119
Measured on recurring basis \| Level 3 \| Debt securities \| Corporate	'	'
Assets and liabilities measured at fair value on a recurring basis	'	'
Available-for-sale securities	$12,251	$11,119

Disclosures_About_Fair_Value_o4

Disclosures About Fair Value of Financial Instruments (Details 3) (Debt securities, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt securities	'	'
Reconciliation of debt securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	'	'
Balance at the beginning of the period	$11,119	$9,657
Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation):	'	'
Included in net income as OTTI	-713	'
Included in other comprehensive income	1,845	1,462
Balance at the end of the period	$12,251	$11,119

Disclosures_About_Fair_Value_o5

Disclosures About Fair Value of Financial Instruments (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount	'	'
Total assets	$80,933	$113,252
Loans evaluated for impairment	'	'
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount	'	'
Total assets	62,730	87,087
Real estate owned	'	'
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount	'	'
Total assets	18,203	26,165
Level 3	'	'
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount	'	'
Total assets	80,933	113,252
Level 3 \| Loans evaluated for impairment	'	'
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount	'	'
Total assets	62,730	87,087
Level 3 \| Real estate owned	'	'
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount	'	'
Total assets	$18,203	$26,165

Disclosures_About_Fair_Value_o6

Disclosures About Fair Value of Financial Instruments (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Debt securities	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Fair value	12,251
Debt securities \| Discounted cash flow	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Default rates (as a percent)	1.00%
Prepayment speeds (as a percent)	1.00%
Debt securities \| Discounted cash flow \| Minimum	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Discount margin (as a percent)	0.35%
Debt securities \| Discounted cash flow \| Maximum	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Discount margin (as a percent)	2.10%
Debt securities \| Discounted cash flow \| Weighted Average	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Discount margin (as a percent)	0.69%
Loan measured for impairment	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Fair value	62,730
Estimated costs to sell (as a percent)	10.00%
Real estate owned	'
Quantitative information for Level 3 Fair Value Measurements Assets	'
Fair value	18,203
Estimated costs to sell (as a percent)	10.00%

Regulatory_Capital_Requirement2

Regulatory Capital Requirements (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Northwest Bancshares, Inc.	'	'
Total capital (to risk weighted assets)	'	'
Actual Amount	$1,147,027,000	$1,117,979,000
Actual Ratio (as a percent)	22.46%	21.53%
Tier I capital (to risk weighted assets)	'	'
Actual Amount	1,081,060,000	1,050,261,000
Actual Ratio (as a percent)	21.17%	20.22%
Tier I capital (leverage) (to total assets)	'	'
Actual Amount	1,081,060,000	1,050,261,000
Actual Ratio (as a percent)	13.87%	13.43%
Northwest Savings Bank	'	'
Regulatory Capital Requirements	'	'
Maximum amount available for dividend payments	47,500,000	'
Total capital (to risk weighted assets)	'	'
Actual Amount	946,531,000	875,676,000
Actual Ratio (as a percent)	18.60%	16.94%
Minimum Capital Requirements Amount	407,062,000	413,424,000
Minimum Capital Requirements Ratio (as a percent)	8.00%	8.00%
Well Capitalized Requirements Amount	508,828,000	516,780,000
Well Capitalized Requirements Ratio (as a percent)	10.00%	10.00%
Tier I capital (to risk weighted assets)	'	'
Actual Amount	882,234,000	810,727,000
Actual Ratio (as a percent)	17.34%	15.69%
Minimum Capital Requirements Amount	203,531,000	206,712,000
Minimum Capital Requirements Ratio (as a percent)	4.00%	4.00%
Well Capitalized Requirements Amount	305,297,000	310,068,000
Well Capitalized Requirements Ratio (as a percent)	6.00%	6.00%
Tier I capital (leverage) (to total assets)	'	'
Actual Amount	882,234,000	810,727,000
Actual Ratio (as a percent)	11.42%	10.41%
Minimum Capital Requirements Amount	309,127,000	311,473,000
Minimum Capital Requirements Ratio (as a percent)	4.00%	4.00%
Well Capitalized Requirements Amount	$386,408,000	$389,340,000
Well Capitalized Requirements Ratio (as a percent)	5.00%	5.00%

Legal_Proceedings_Details

Legal Proceedings (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified	Dec. 31, 2013
Legal Proceedings	'
Loss contingencies accrued	$2.30

Components_of_Accumulated_Othe2

Components of Accumulated Other Comprehensive Income (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Components of Accumulated Other Comprehensive Income	'	'	'	'
Unrealized gain on marketable securities available-for-sale	($3,233)	$15,853	'	'
Fair value of interest rate swaps	-5,224	-8,405	'	'
Defined benefit pension plans	-3,443	-18,936	'	'
Accumulated other comprehensive income	($11,900)	($11,488)	($23,226)	($13,497)

Components_of_Accumulated_Othe3

Components of Accumulated Other Comprehensive Income (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Changes in accumulated other comprehensive income by component	'	'	'
Balance at the beginning of the period	($11,488,000)	($23,226,000)	($13,497,000)
Other comprehensive income before reclassification adjustments	1,214,000	10,238,000	-11,811,000
Amounts reclassified from accumulated other comprehensive income	-1,626,000	1,500,000	2,082,000
Other comprehensive (loss)/ income	-412,000	11,738,000	-9,729,000
Balance at the end of the period	-11,900,000	-11,488,000	-23,226,000
Other than temporary impairment losses (net impairment losses)	-713,000	-331,000	-937,000
Income tax expense related to compensation and employee benefits	812,000	56,000	56,000
Unrealized gains and losses on securities available-for-sale	'	'	'
Changes in accumulated other comprehensive income by component	'	'	'
Balance at the beginning of the period	15,853,000	14,046,000	3,021,000
Other comprehensive income before reclassification adjustments	-16,544,000	2,029,000	9,312,000
Amounts reclassified from accumulated other comprehensive income	-2,542,000	-222,000	1,713,000
Other comprehensive (loss)/ income	-19,086,000	1,807,000	11,025,000
Balance at the end of the period	-3,233,000	15,853,000	14,046,000
Realized gains (losses) on securities, net of tax	4,881,000	695,000	-1,809,000
Other than temporary impairment losses (net impairment losses)	-713,000	-331,000	-937,000
Income tax expense on realized gains on securities	1,626,000	142,000	1,033,000
Change in fair value of interest rate swaps	'	'	'
Changes in accumulated other comprehensive income by component	'	'	'
Balance at the beginning of the period	-8,405,000	-8,864,000	-6,077,000
Other comprehensive income before reclassification adjustments	3,181,000	459,000	-2,787,000
Other comprehensive (loss)/ income	3,181,000	459,000	-2,787,000
Balance at the end of the period	-5,224,000	-8,405,000	-8,864,000
Change in defined benefit pension plans	'	'	'
Changes in accumulated other comprehensive income by component	'	'	'
Balance at the beginning of the period	-18,936,000	-28,408,000	-10,441,000
Other comprehensive income before reclassification adjustments	14,577,000	7,750,000	-18,336,000
Amounts reclassified from accumulated other comprehensive income	916,000	1,722,000	369,000
Other comprehensive (loss)/ income	15,493,000	9,472,000	-17,967,000
Balance at the end of the period	-3,443,000	-18,936,000	-28,408,000
Amortization of prior service cost (compensation and employee benefits)	2,321,000	160,000	160,000
Amortization of net loss (compensation and employee benefits)	-3,730,000	-2,810,000	-728,000
Income tax expense related to compensation and employee benefits	$493,000	$928,000	$199,000

Parent_Company_Only_Financial_2

Parent Company Only Financial Statements - Condensed (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets	'	'	'	'
Cash and cash equivalents	$391,905	$451,704	$688,297	$719,111
Marketable securities available-for-sale	1,016,767	1,079,074	'	'
Other assets	69,663	77,310	'	'
Total assets	7,881,476	7,942,600	7,957,705	'
Liabilities:	'	'	'	'
Debentures payable	103,094	103,094	'	'
Other liabilities	43,499	62,177	'	'
Total liabilities	6,724,674	6,814,131	'	'
Shareholders' equity	1,156,802	1,128,469	1,154,904	1,307,450
Total liabilities and shareholders' equity	7,881,476	7,942,600	'	'
Parent Company	'	'	'	'
Assets	'	'	'	'
Cash and cash equivalents	188,775	227,327	156,860	260,784
Marketable securities available-for-sale	8,473	17,907	'	'
Investment in bank subsidiary	1,065,603	997,084	'	'
Other assets	5,205	4,474	'	'
Total assets	1,268,056	1,246,792	'	'
Liabilities:	'	'	'	'
Debentures payable	103,094	103,094	'	'
Other liabilities	8,160	15,229	'	'
Total liabilities	111,254	118,323	'	'
Shareholders' equity	1,156,802	1,128,469	'	'
Total liabilities and shareholders' equity	$1,268,056	$1,246,792	'	'

Parent_Company_Only_Financial_3

Parent Company Only Financial Statements - Condensed (Details 2) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Income:

Interest income

$76,854

$77,788

$78,763

$79,633

$83,320

$83,876

$84,808

$86,034

$88,535

$89,789

$89,997

$90,907

$313,038

$338,038

$359,228

Expense:

Other expense

9,962

9,097

8,673

Interest expense

14,805

15,276

15,436

15,645

17,040

18,220

19,096

20,843

22,268

23,019

23,462

24,052

61,162

75,199

92,801

Income before income taxes

29,452

23,352

18,529

21,737

22,365

22,211

23,869

21,483

21,638

23,542

21,084

24,744

93,070

89,928

91,008

Federal and state income taxes

9,089

5,752

5,051

6,439

6,040

6,518

7,508

6,302

6,463

6,822

6,081

7,491

26,331

26,368

26,857

Net income

20,363

17,600

13,478

15,298

16,325

15,693

16,361

15,181

15,175

16,720

15,003

17,253

66,739

63,560

64,151

Parent Company

Income:

Interest income

1,467

1,442

1,717

Other income

5,961

773

515

Dividends from bank subsidiary

175,000

122,585

Undistributed earnings from equity investment in bank subsidiary

66,183

-108,400

-55,552

Total income

73,611

68,815

69,265

Expense:

Compensation and benefits

1,024

955

649

Other expense

234

305

368

Interest expense

5,444

5,717

5,699

Total expense

6,702

6,977

6,716

Income before income taxes

66,909

61,838

62,549

Federal and state income taxes

170

-1,722

-1,602

Net income

$66,739

$63,560

$64,151

Parent_Company_Only_Financial_4

Parent Company Only Financial Statements - Condensed (Details 3) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Operating activities:

Net Income

$20,363

$17,600

$13,478

$15,298

$16,325

$15,693

$16,361

$15,181

$15,175

$16,720

$15,003

$17,253

$66,739

$63,560

$64,151

Adjustments to reconcile net income to net cash provided by operating activities:

Noncash stock benefit plan compensation expense

5,083

4,623

6,725

Gain on sale of marketable securities

-6,118

-654

-358

Net cash provided by operating activities

130,842

127,455

118,702

Investing activities:

Net cash (used in)/ provided by investing activities

-76,150

-273,440

111,462

Financing activities:

Cash dividends paid

-45,871

-56,862

-43,642

Share repurchases

-4,459

-52,028

-172,690

Proceeds from options exercised

6,618

2,131

2,030

Net cash used in by financing activities

-114,491

-90,608

-260,978

Net decrease in cash and cash equivalents

-59,799

-236,593

-30,814

Cash and cash equivalents at beginning of period

451,704

688,297

719,111

451,704

688,297

719,111

Cash and cash equivalents at end of period

391,905

451,704

688,297

391,905

451,704

688,297

Parent Company

Operating activities:

Net Income

66,739

63,560

64,151

Adjustments to reconcile net income to net cash provided by operating activities:

Undistributed earnings in subsidiary

-66,183

108,400

55,552

Noncash stock benefit plan compensation expense

5,083

4,623

6,725

Gain on sale of marketable securities

-5,139

Net change in other assets and liabilities

-3,692

467

-5,692

Net cash provided by operating activities

-3,192

177,050

120,736

Investing activities:

Net sale/ (purchase) of marketable securities

7,200

-940

-11,439

Net cash (used in)/ provided by investing activities

7,200

-940

-11,439

Financing activities:

Cash dividends paid

-45,871

-56,862

-43,642

Share repurchases

-4,459

-52,028

-172,690

Repayment of loan to ESOP

1,152

1,116

1,081

Proceeds from options exercised

6,618

2,131

2,030

Net cash used in by financing activities

-42,560

-105,643

-213,221

Net decrease in cash and cash equivalents

-38,552

70,467

-103,924

Cash and cash equivalents at beginning of period

227,327

156,860

260,784

227,327

156,860

260,784

Cash and cash equivalents at end of period

$188,775

$227,327

$156,860

$188,775

$227,327

$156,860

Business_Segments_Details

Business Segments (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

item

Business Segments

Number of reportable business segments

Business Segments

Interest income

$76,854

$77,788

$78,763

$79,633

$83,320

$83,876

$84,808

$86,034

$88,535

$89,789

$89,997

$90,907

$313,038

$338,038

$359,228

Interest expense

14,805

15,276

15,436

15,645

17,040

18,220

19,096

20,843

22,268

23,019

23,462

24,052

61,162

75,199

92,801

Provision for loan losses

964

4,992

5,405

7,158

8,173

6,915

4,963

6,287

10,502

8,057

8,367

7,244

18,519

26,338

34,170

Noninterest income

20,947

16,109

13,413

16,378

14,690

15,273

15,086

13,855

14,309

14,752

15,406

14,511

66,847

58,904

58,978

Noninterest expense

52,580

50,277

52,806

51,471

50,432

51,803

51,966

51,276

48,436

49,923

52,490

49,378

207,134

205,477

200,227

Income tax expense (benefit)

9,089

5,752

5,051

6,439

6,040

6,518

7,508

6,302

6,463

6,822

6,081

7,491

26,331

26,368

26,857

Net income

20,363

17,600

13,478

15,298

16,325

15,693

16,361

15,181

15,175

16,720

15,003

17,253

66,739

63,560

64,151

Total assets

7,881,476

7,942,600

7,957,705

7,881,476

7,942,600

7,957,705

Community Banking

Business Segments

Interest income

291,194

314,514

336,379

Interest expense

56,282

69,976

87,850

Provision for loan losses

15,206

22,944

31,050

Noninterest income

59,987

56,684

56,412

Noninterest expense

194,028

191,994

187,262

Income tax expense (benefit)

24,462

25,847

26,052

Net income

63,894

63,402

63,635

Total assets

7,747,050

7,786,529

7,802,327

7,747,050

7,786,529

7,802,327

Community Banking | Intersegment

Business Segments

Interest income

2,691

2,965

3,058

Consumer Finance

Business Segments

Interest income

20,648

22,348

21,799

Interest expense

2,691

2,965

3,058

Provision for loan losses

3,313

3,394

3,120

Noninterest income

1,647

2,132

2,513

Noninterest expense

12,303

12,678

12,331

Income tax expense (benefit)

1,699

2,243

2,407

Net income

2,289

3,200

3,396

Total assets

109,249

117,094

117,068

109,249

117,094

117,068

All Other

Business Segments

Interest income

1,196

1,176

1,050

Interest expense

2,189

2,258

1,893

Noninterest income

5,213

Noninterest expense

803

805

634

Income tax expense (benefit)

170

-1,722

-1,602

Net income

556

-3,042

-2,880

Total assets

25,177

38,977

38,310

25,177

38,977

38,310

All Other | Intersegment

Business Segments

Interest income

($2,691)

($2,965)

($3,058)

Guaranteed_Preferred_Beneficia2

Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements (Details) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2008

Dec. 31, 2013

Dec. 31, 2012

Dec. 05, 2005

Dec. 31, 2005

Dec. 31, 2013

Dec. 31, 2012

Dec. 15, 2005

Dec. 31, 2005

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2008

item

Interest rate swap agreements

Northwest Bancorp Capital Trust III

Northwest Bancorp Statutory Trust IV

Trust-Preferred Securities

item

Interest rate swap agreements

Swap 2

Interest rate swap agreements

Swap 3

Swap 4

Northwest Bancorp Capital Trust III

Northwest Bancorp Statutory Trust IV

item

Interest rate swap agreements

item

Interest rate swap agreements

Swap 4

Cash flow hedges

Interest rate swap agreements

Cash flow hedges

Guaranteed Preferred Beneficial Interest in Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swap Agreements

Number of statutory business trusts owned

Cumulative trust preferred securities issued

50,000

Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security)

$1,000

Total value of cumulative trust preferred securities issued

$100,000,000

$50,000,000

Variable rate basis

'three-month LIBOR

Spread on variable rate basis (as a percent)

1.38%

Junior subordinated deferrable interest debentures held by the trusts

103,094,000

51,547,000

Effective interest rate (as a percent)

1.63%

1.62%

Maximum period for which interest payment on the subordinated debentures can be deferred

'5 years

Interest deferral

Number of agreements

Original term of swaps

'7 years

'10 years

Fixed rate (as a percent)

4.61%

3.85%

4.09%

Notional amount

$25,000,000

Guaranteed_Preferred_Beneficia3

Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
	Dec. 31, 2013	Interest rate swap agreements	Interest rate swap agreements
Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements	'	'	'
Hedge ineffectiveness for swaps	$0	'	'
Liability Derivatives, Included in Other Liabilities	'	'	'
Fair value	'	8,037	12,932
Notional amount	'	75,000	100,000
Collateral posted	'	$8,405	$13,505

Guaranteed_Preferred_Beneficia4

Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 05, 2005	Dec. 31, 2013	Dec. 31, 2012	Dec. 15, 2005
			Trust-Preferred Securities	Trust-Preferred Securities	Trust-Preferred Securities	Trust-Preferred Securities	Trust-Preferred Securities	Trust-Preferred Securities	Trust-Preferred Securities	Trust-Preferred Securities
					Northwest Bancorp Capital Trust III	Northwest Bancorp Capital Trust III	Northwest Bancorp Capital Trust III	Northwest Bancorp Statutory Trust IV	Northwest Bancorp Statutory Trust IV	Northwest Bancorp Statutory Trust IV
Guaranteed Preferred Beneficial Interest in Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swap Agreements	'	'	'	'	'	'	'	'	'	'
Total value of cumulative trust preferred securities issued	'	'	$100,000,000	'	$50,000,000	'	$50,000,000	$50,000,000	'	$50,000,000
Junior subordinated deferrable interest debentures	$103,094,000	$103,094,000	$103,094,000	$103,094,000	$51,547,000	$51,547,000	'	$51,547,000	$51,547,000	'

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data - Unaudited (Details) (USD $)	3 Months Ended												12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Selected Quarterly Financial Data - Unaudited	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Interest income	$76,854	$77,788	$78,763	$79,633	$83,320	$83,876	$84,808	$86,034	$88,535	$89,789	$89,997	$90,907	$313,038	$338,038	$359,228
Interest expense	14,805	15,276	15,436	15,645	17,040	18,220	19,096	20,843	22,268	23,019	23,462	24,052	61,162	75,199	92,801
Net interest income	62,049	62,512	63,327	63,988	66,280	65,656	65,712	65,191	66,267	66,770	66,535	66,855	251,876	262,839	266,427
Provision for loan losses	964	4,992	5,405	7,158	8,173	6,915	4,963	6,287	10,502	8,057	8,367	7,244	18,519	26,338	34,170
Noninterest income	20,947	16,109	13,413	16,378	14,690	15,273	15,086	13,855	14,309	14,752	15,406	14,511	66,847	58,904	58,978
Noninterest expenses	52,580	50,277	52,806	51,471	50,432	51,803	51,966	51,276	48,436	49,923	52,490	49,378	207,134	205,477	200,227
Income before income taxes	29,452	23,352	18,529	21,737	22,365	22,211	23,869	21,483	21,638	23,542	21,084	24,744	93,070	89,928	91,008
Income tax expense	9,089	5,752	5,051	6,439	6,040	6,518	7,508	6,302	6,463	6,822	6,081	7,491	26,331	26,368	26,857
Net income	$20,363	$17,600	$13,478	$15,298	$16,325	$15,693	$16,361	$15,181	$15,175	$16,720	$15,003	$17,253	$66,739	$63,560	$64,151
Basic earnings per share (in dollars per share)	$0.22	$0.19	$0.15	$0.17	$0.18	$0.17	$0.17	$0.16	$0.16	$0.17	$0.15	$0.16	$0.74	$0.68	$0.64
Diluted earnings per share (in dollars per share)	$0.22	$0.19	$0.15	$0.17	$0.18	$0.17	$0.17	$0.16	$0.16	$0.17	$0.15	$0.16	$0.73	$0.68	$0.64