Northwest Bancshares (NWBI) 10-Q 9 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 31, 2016
Document and Entity Information
Entity Registrant Name	Northwest Bancshares, Inc.
Entity Central Index Key	1,471,265
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)		101,302,855
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus (i.e. Q1,Q2,Q3,FY)	Q3

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 107,604	$ 92,263
Interest-earning deposits in other financial institutions	210,723	74,510
Federal funds sold and other short-term investments	2,239	635
Marketable securities available-for-sale (amortized cost of $879,141 and $868,956)	890,688	874,405
Marketable securities held-to-maturity (fair value of $23,249 and $32,552)	22,584	31,689
Total cash and investments	1,233,838	1,073,502
Personal Banking loans:
Residential mortgage loans held for sale	30,355	0
Residential mortgage loans	2,788,658	2,740,892
Home equity loans	1,349,105	1,187,106
Consumer loans	628,512	520,289
Total Personal Banking loans	4,796,630	4,448,287
Commercial Banking loans:
Commercial real estate loans	2,464,681	2,351,434
Commercial loans	537,255	422,400
Total Business Banking loans	3,001,936	2,773,834
Total loans	7,798,566	7,222,121
Allowance for loan losses	(63,246)	(62,672)
Total loans, net	7,735,320	7,159,449
Federal Home Loan Bank stock, at cost	7,660	40,903
Accrued interest receivable	21,591	21,072
Real estate owned, net	4,841	8,725
Premises and equipment, net	167,596	154,351
Bank owned life insurance	170,172	168,509
Goodwill	307,711	261,736
Other intangible assets	33,901	8,982
Other assets	31,977	54,670
Total assets	9,714,607	8,951,899
Liabilities:
Noninterest-bearing checking deposits	1,496,574	1,177,256
Interest-bearing checking deposits	1,446,971	1,080,086
Money market deposit accounts	1,896,272	1,274,504
Savings deposits	1,671,539	1,386,017
Time deposits	1,691,447	1,694,718
Total deposits	8,202,803	6,612,581
Borrowed funds	135,891	975,007
Junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities	111,213	111,213
Advances by borrowers for taxes and insurance	21,616	33,735
Accrued interest payable	682	1,993
Other liabilities	79,599	54,207
Total liabilities	8,551,804	7,788,736
Shareholders’ equity:
Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued	0	0
Common stock, $0.01 par value: 500,000,000 shares authorized, 101,268,648 and 101,871,737 shares issued, respectively	1,013	1,019
Paid-in capital	711,974	717,603
Retained earnings	469,459	489,292
Unallocated common stock of employee stock ownership plan	0	(20,216)
Accumulated other comprehensive loss	(19,643)	(24,535)
Total shareholders’ equity	1,162,803	1,163,163
Total liabilities and shareholders’ equity	$ 9,714,607	$ 8,951,899

CONSOLIDATED STATEMENTS OF FIN3

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Marketable securities available-for-sale, amortized cost	$ 879,141	$ 868,956
Marketable securities held-to-maturity, fair value	$ 23,249	$ 32,552
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	101,268,648	101,871,737

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income:
Loans receivable	$ 82,435	$ 76,087	$ 245,861	$ 217,783
Mortgage-backed securities	2,030	2,230	6,374	6,522
Taxable investment securities	627	1,238	2,421	3,412
Tax-free investment securities	676	986	2,107	3,477
FHLB dividends	218	451	1,086	2,329
Interest-earning deposits	114	99	243	418
Total interest income	86,100	81,091	258,092	233,941
Interest expense:
Deposits	5,653	6,163	17,606	17,620
Borrowed funds	1,801	7,987	13,602	24,221
Total interest expense	7,454	14,150	31,208	41,841
Net interest income	78,646	66,941	226,884	192,100
Provision for loan losses	5,538	3,167	11,397	5,117
Net interest income after provision for loan losses	73,108	63,774	215,487	186,983
Noninterest income:
Gain on sale/ call of investments	58	260	412	921
Service charges and fees	11,012	9,945	31,707	27,832
Trust and other financial services income	3,434	3,062	9,972	8,932
Insurance commission income	2,541	2,398	8,023	7,036
Loss on real estate owned, net	(563)	(246)	(203)	(1,833)
Income from bank owned life insurance	1,380	1,166	4,080	3,087
Mortgage banking income	1,886	267	2,550	725
Other operating income	1,070	1,288	4,000	2,590
Total noninterest income	20,818	18,140	60,541	49,290
Noninterest expense:
Compensation and employee benefits	39,474	31,000	106,856	87,815
Premises and occupancy costs	6,094	6,072	18,906	18,238
Office operations	3,700	3,268	10,503	9,085
Collections expense	589	624	1,994	1,995
Processing expenses	8,844	8,126	25,430	22,723
Marketing expenses	2,239	1,691	6,671	6,857
Federal deposit insurance premiums	984	1,177	3,929	3,810
Professional services	1,815	1,529	5,777	4,973
Amortization of intangible assets	1,068	422	2,453	959
Real estate owned expense	206	471	812	1,677
Restructuring/ acquisition expense	7,183	7,590	11,204	8,404
FHLB prepayment penalty	0	0	36,978	0
Other expenses	2,836	1,834	10,055	6,114
Total noninterest expense	75,032	63,804	241,568	172,650
Income before income taxes	18,894	18,110	34,460	63,623
Federal and state income taxes expense/ (benefit)	4,697	5,238	9,287	19,276
Net income	$ 14,197	$ 12,872	$ 25,173	$ 44,347
Basic earnings per share (in dollars per share)	$ 0.14	$ 0.14	$ 0.25	$ 0.48
Diluted earnings per share (in dollars per share)	$ 0.14	$ 0.13	$ 0.25	$ 0.48

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 14,197	$ 12,872	$ 25,173	$ 44,347
Net unrealized holding gains/ (losses) on marketable securities:
Unrealized holding gains/ (losses) net of tax of $503, $(1,520) $(2,377) and $(2,266), respectively	(785)	2,379	3,717	3,543
Reclassification adjustment for (gains)/ losses included in net income, net of tax of $23, $77, $(1) and $299 respectively	(36)	(120)	3	(467)
Net unrealized holding gains on marketable securities	(821)	2,259	3,720	3,076
Change in fair value of interest rate swaps, net of tax of $(253), $(24), $(267) and $(311), respectively	471	45	497	577
Defined benefit plan:
Reclassification adjustments for prior period service costs and net losses included in net income, net of tax of $(144), $(140), $(432) and $(420), respectively	224	219	675	657
Other comprehensive income/ (loss)	(126)	2,523	4,892	4,310
Total comprehensive income	$ 14,071	$ 15,395	$ 30,065	$ 48,657

CONSOLIDATED STATEMENTS OF COM6

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Unrealized holding gains/ (losses), tax	$ 503	$ (1,520)	$ (2,377)	$ (2,266)
Reclassification adjustment for (gains)/losses included in net income, tax	23	77	(1)	299
Change in fair value of interest rate swaps, tax	(253)	(24)	(267)	(311)
Reclassification adjustment for prior period service costs and net losses included in net income, tax	$ (144)	$ (140)	$ (432)	$ (420)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/ (loss)	Unallocated common stock of ESOP	Employee Stock Ownership Plan	Employee Stock Ownership PlanCommon Stock	Employee Stock Ownership PlanPaid-in Capital	Employee Stock Ownership PlanRetained Earnings	Employee Stock Ownership PlanAccumulated Other Comprehensive Income/ (loss)	Employee Stock Ownership PlanUnallocated common stock of ESOP
Balance beginning of the period (in shares) at Dec. 31, 2014		94,721,453
Balance beginning of the period at Dec. 31, 2014	$ 1,062,647	$ 947	$ 626,134	$ 481,577	$ (24,370)	$ (21,641)
Comprehensive income:
Net income	44,347			44,347
Other comprehensive income/ (loss), net of tax	4,310				4,310
Total comprehensive income	48,657			44,347	4,310
Acquisition of LNB Bancorp, Inc. (in shares)		7,056,704
Acquisition of LNB Bancorp, Inc.	90,608	$ 70	90,538
Share repurchases (in shares)		(645,300)
Share repurchases	(7,847)	$ (6)	(7,841)
Exercise of stock options (in shares)		285,905
Exercise of stock options	2,841	$ 3	2,838
Stock-based compensation expense (in shares)		306,350
Stock-based compensation expense, including tax benefit	3,307	$ 3	3,061			243
Dividends paid, per share amount	(38,876)			(38,876)
Balance end of period (in shares) at Sep. 30, 2015		101,725,112
Balance end of the period at Sep. 30, 2015	1,161,337	$ 1,017	714,730	487,048	(20,060)	(21,398)
Balance beginning of the period (in shares) at Jun. 30, 2015		94,740,749
Balance beginning of the period at Jun. 30, 2015	1,068,350	$ 947	624,321	487,150	(22,583)	(21,485)
Comprehensive income:
Net income	12,872			12,872
Other comprehensive income/ (loss), net of tax	2,523				2,523
Total comprehensive income	$ 15,395			12,872	2,523
Acquisition of LNB Bancorp, Inc. (in shares)	7,056,704
Acquisition of LNB Bancorp, Inc.	$ 90,608	$ 70	90,538
Share repurchases (in shares)		(147,500)
Share repurchases	(1,844)	$ (1)	(1,843)
Exercise of stock options (in shares)		75,159
Exercise of stock options	774	$ 1	773
Stock-based compensation expense (in shares)		0
Stock-based compensation expense, including tax benefit	1,028	$ 0	941			87
Dividends paid, per share amount	(12,974)			(12,974)
Balance end of period (in shares) at Sep. 30, 2015		101,725,112
Balance end of the period at Sep. 30, 2015	1,161,337	$ 1,017	714,730	487,048	(20,060)	(21,398)
Balance beginning of the period (in shares) at Dec. 31, 2015		101,871,737
Balance beginning of the period at Dec. 31, 2015	1,163,163	$ 1,019	717,603	489,292	(24,535)	(20,216)
Comprehensive income:
Net income	25,173			25,173
Other comprehensive income/ (loss), net of tax	4,892				4,892
Total comprehensive income	30,065			25,173	4,892
Share repurchases (in shares)		(145,900)						(1,366,574)
Share repurchases	(1,752)	$ (2)	(1,750)				$ 0	$ (14)	$ (13,896)	$ 0	$ 0	$ 13,910
Exercise of stock options (in shares)		585,668
Exercise of stock options	6,406	$ 7	6,399
Stock-based compensation expense (in shares)		323,717
Stock-based compensation expense, including tax benefit	9,927	$ 3	3,618			6,306
Dividends paid, per share amount	(45,006)			(45,006)
Balance end of period (in shares) at Sep. 30, 2016		101,268,648
Balance end of the period at Sep. 30, 2016	1,162,803	$ 1,013	711,974	469,459	(19,643)	0
Balance beginning of the period (in shares) at Jun. 30, 2016		102,472,947
Balance beginning of the period at Jun. 30, 2016	1,155,455	$ 1,025	722,980	470,337	(19,517)	(19,370)
Comprehensive income:
Net income	14,197			14,197
Other comprehensive income/ (loss), net of tax	(126)				(126)
Total comprehensive income	14,071			14,197	(126)
Share repurchases (in shares)								(1,366,574)
Share repurchases							$ 0	$ (14)	$ (13,896)	$ 0	$ 0	$ 13,910
Exercise of stock options (in shares)		162,275
Exercise of stock options	1,823	$ 2	1,821
Stock-based compensation expense (in shares)		0
Stock-based compensation expense, including tax benefit	6,529	$ 0	1,069			5,460
Dividends paid, per share amount	(15,075)			(15,075)
Balance end of period (in shares) at Sep. 30, 2016		101,268,648
Balance end of the period at Sep. 30, 2016	$ 1,162,803	$ 1,013	$ 711,974	$ 469,459	$ (19,643)	$ 0

CONSOLIDATED STATEMENTS OF CHA8

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Stockholders' Equity [Abstract]
Other comprehensive income, tax	$ 129	$ (1,607)	$ (3,077)	$ (2,698)
Stock-based compensation expense, tax benefits	$ 81	$ 25	$ 287	$ 31
Dividends paid, per share (in dollars per share)	$ 0.15	$ 0.14	$ 0.45	$ 0.42

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
OPERATING ACTIVITIES:
Net income	$ 25,173	$ 44,347
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	11,397	5,117
Net gain on sale of assets	(2,965)	(559)
Net depreciation, amortization and accretion	9,974	4,791
Decrease in other assets	23,588	37,502
Increase/ (decrease) in other liabilities	9,003	(8,993)
Net amortization on marketable securities	1,533	536
Noncash write-down of real estate owned	1,274	2,340
FHLB prepayment penalty	24,520	0
Deferred income tax benefit	(445)	0
Origination of loans held for sale	(188,474)	(371)
Proceeds from sale of loans held for sale	158,058	375
Noncash compensation expense related to stock benefit plans	9,640	3,276
Net cash provided by operating activities	82,276	88,361
INVESTING ACTIVITIES:
Purchase of marketable securities available-for-sale	(238,673)	(59,980)
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	9,097	56,616
Proceeds from maturities and principal reductions of marketable securities available-for-sale	227,283	183,822
Proceeds from sale of marketable securities available-for-sale	91	1,227
Loan originations	(1,950,953)	(1,677,913)
Proceeds from loan maturities and principal reductions	1,849,593	1,432,075
Net sale/ (purchase) of Federal Home Loan Bank stock	33,243	(2,982)
Proceeds from sale of real estate owned	6,557	10,531
Sale of real estate owned for investment, net	456	456
Purchase of premises and equipment	(12,485)	(7,657)
Acquisitions, net of cash received	1,118,400	(61,108)
Net cash provided by/ (used in) investing activities	1,042,609	(124,913)
FINANCING ACTIVITIES:
Decrease in deposits, net	(52,624)	(28,075)
Proceeds from long-term borrowings	0	85,000
Repayments of long-term borrowings, including prepayment penalty	(774,863)	(172,539)
Net increase/ (decrease) in short-term borrowings	(88,773)	63,480
Decrease in advances by borrowers for taxes and insurance	(15,402)	(12,544)
Cash dividends paid	(45,006)	(38,876)
Purchase of common stock for retirement	(1,752)	(7,847)
Proceeds from stock options exercised	6,406	2,841
Excess tax benefit from stock-based compensation	287	31
Net cash used in financing activities	(971,727)	(108,529)
Net increase/ (decrease) in cash and cash equivalents	153,158	(145,081)
Cash and cash equivalents at beginning of period	167,408	240,706
Net increase/ (decrease) in cash and cash equivalents	153,158	(145,081)
Cash and cash equivalents at end of period	320,566	95,625
Cash and cash equivalents:
Total cash and cash equivalents	167,408	240,706
Cash paid during the period for:
Interest on deposits and borrowings (including interest credited to deposit accounts of $16,556 and $16,092, respectively)	32,519	40,961
Income taxes	4,086	10,731
Business acquisitions:
Fair value of assets acquired, excluding cash received	545,796	1,160,190
Cash paid, net	1,118,400	(61,108)
Liabilities assumed	1,664,196	1,099,082
Non-cash activities:
Loans foreclosures and repossessions	2,877	6,742
Sale of real estate owned financed by the Company	$ 1,773	$ 768

CONSOLIDATED STATEMENTS OF CA10

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Cash Flows [Abstract]
Interest on deposits and borrowings, interest credited to deposit accounts	$ 16,556	$ 16,092

Basis of Presentation and Infor

Basis of Presentation and Informational Disclosures	9 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Informational Disclosures	Basis of Presentation and Informational Disclosures Northwest Bancshares, Inc. (the “Company”) or (“NWBI”), a Maryland corporation headquartered in Warren, Pennsylvania, is a savings and loan holding company regulated by the Board of Governors of the Federal Reserve System. The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”). Northwest is regulated by the FDIC and the Pennsylvania Department of Banking. Northwest operates 176 community-banking offices throughout Pennsylvania, western New York, eastern Ohio and Maryland. The accompanying unaudited consolidated financial statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Settlement Agency, LLC, Northwest Consumer Discount Company, Northwest Financial Services, Inc., Northwest Advisors, Inc., Northwest Capital Group, Inc., Allegheny Services, Inc., Great Northwest Corporation, Boetger & Associates, Inc. and The Bert Company. The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information or footnotes required for complete annual financial statements. In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included. The consolidated statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 updated, as required, for any new pronouncements or changes. Certain items previously reported have been reclassified to conform to the current year’s reporting format. The results of operations for the quarter and nine months ended September 30, 2016 are not necessarily indicative of the results that may be expected for the year ending December 31, 2016 , or any other period. Stock-Based Compensation On May 18, 2016, we awarded employees 660,600 stock options and directors 64,800 stock options with an exercise price of $14.15 and grant date fair value of $1.52 per stock option. On May 18, 2016, we also awarded employees 310,160 restricted common shares and directors 24,300 restricted common shares with a grant date fair value of $14.51 . Awarded stock options and common shares vest over a ten -year period with the first vesting occurring on the grant date. Stock-based compensation expense of $6.4 million and $1.0 million for the quarters ended September 30, 2016 and 2015 , and $9.6 million and $3.3 million for the nine months ended September 30, 2016 and 2015 , respectively, was recognized in compensation expense relating to our stock benefit plans. At September 30, 2016 there was compensation expense of $4.3 million to be recognized for awarded but unvested stock options and $16.2 million for unvested common shares. On September 30, 2016, the Northwest Savings Bank Employee Stock Ownership Plan ("ESOP") was terminated. As a result, 1,366,574 unallocated ESOP shares were retired to payoff the ESOP loan due to the Company. The remaining 401,356 unallocated ESOP shares were distributed into the employees' Northwest Savings Bank 401(k) Plan accounts. This distribution resulted in stock-based compensation expense of $5.5 million and $ 6.3 million for the quarter and nine months ended September 30, 2016, respectively. Income Taxes- Uncertain Tax Positions Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return. A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits. The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At September 30, 2016 we had no liability for unrecognized tax benefits. We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income. We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2015 , 2014 , and 2013 . Impact of New Accounting Standards In May 2014 the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-9, “Revenue from Contracts with Customers (Topic 606)”. This guidance supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The core principle of this guidance requires an entity to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and provides five steps to be analyzed to accomplish the core principle. This guidance is effective retrospectively for annual reporting periods beginning after December 15, 2017, including interim periods within those years and early adoption is not permitted. We are currently evaluating the impact this standard will have on our results of operations and financial position. In January 2016 the FASB issued ASU 2016-01, “Financial Instruments-Overall (Subtopic 825-10)” . This guidance requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. Additionally, this guidance requires entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes and eliminates the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. We are currently evaluating the impact this standard will have on our results of operations and financial position. In February 2016 the FASB issued ASU 2016-2, “Leases” . This guidance requires a lessee to recognize in the statement of financial condition a liability to make lease payments and a right-of-use asset representing the right to use the underlying asset for the term of the lease. Optional periods should only be recognized if the lessee is reasonably certain to exercise the option. For leases with a term of twelve months or less, the lessee is permitted not to recognize lease assets and lease liabilities and should recognize lease expense for such leases generally on a straight-line basis over the term of the lease. This guidance is effective for annual periods beginning after December 15, 2018, including interim periods within those years and early adoption is permitted. We are currently evaluating the impact this standard will have on our results of operations and financial position. In March 2016 the FASB issued ASU 2016-08, “Principal Versus Agent Considerations” . This guidance clarifies the implementation guidance on principal versus agent considerations of ASU 2014-09 "Revenue from Contracts with Customers (Topic 606)" . When another party is involved in providing goods or services to a customer, an entity is required to determine whether the nature of its promise is to provide the specified good or service itself (that is, the entity is a principal) or to arrange for that good or service to be provided by the other party (that is, the entity is an agent). When (or as) an entity that is a principal satisfies a performance obligation, the entity recognizes revenue in the gross amount of consideration to which it expects to be entitled in exchange for the specified good or service transferred to the customer. When (or as) an entity that is an agent satisfies a performance obligation, the entity recognizes revenue in the amount of any fee or commission to which it expects to be entitled in exchange for arranging for the specified good or service to be provided by the other party. This guidance is effective retrospectively for annual reporting periods beginning after December 15, 2017, including interim periods within those years and early adoption is not permitted. We are currently evaluating the impact this standard will have on our results of operations and financial position. In March 2016 the FASB issued ASU 2016-09, “Improvements to Employee Share-based Payment Accounting” . This guidance is part of the FASB's Simplification Initiative and simplifies the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016, including interim periods within those years 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 June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326)-Measurement of Credit Losses on Financial Instruments , which eliminates the probable initial recognition threshold for credit losses requiring, instead, that all financial assets (or group of financial assets) measured at amortized cost be presented at the net amount expected to be collected inclusive of the entity’s current estimate of all lifetime expected credit losses. This guidance also applies to certain off-balance-sheet credit exposures such as unfunded commitments and non-derivative financial guarantees. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) in order to present the net carrying value at the amount expected to be collected on the financial asset. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The income statement under this guidance will reflect the initial recognition of current expected credit losses for newly recognized assets, as well as any increases or decreases of expected credit losses that have occurred during the period. This guidance retains many currently-existing disclosures related to the credit quality of an entity’s assets and the related allowance for credit losses amended to reflect the change to an expected credit loss methodology, as well as enhanced disclosures to provide information to users at a more disaggregated level. Upon adoption, ASU 2016-13 provides for a modified retrospective transition by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is effective, except for debt securities for which an other-than-temporary impairment has previously been recognized. For these debt securities, a prospective transition is provided in order to maintain the same amortized cost prior to and subsequent to the effective date of the ASU. This guidance is effective for annual reporting periods beginning after December 15, 2019, and interim periods within those annual periods with early adoption permitted for fiscal years beginning after December 15, 2018, and interim periods within those annual periods. We are currently evaluating the impact this standard will have on our results of operations and financial position.

Acquisition

Acquisition	9 Months Ended
	Sep. 30, 2016
Business Combinations [Abstract]
Acquisition	Acquisition On September 9, 2016, Northwest, the wholly-owned subsidiary of the Company, completed the acquisition of 18 branches located in Erie and Niagara Counties, New York and certain related assets, and the assumption by Northwest of certain related liabilities, pursuant to the Purchase and Sale Agreement with KeyCorp, First Niagara Financial Group, Inc. (“FNFG”), and First Niagara Financial Group’s wholly-owned subsidiaries, First Niagara Bank, National Association (“First Niagara Bank”) and First Niagara Securities, Inc., dated April 28, 2016 (the “Purchase Agreement”). We also acquired certain wealth management relationships, which included approximately $450.0 million of assets under management. While the FNFG branch acquisition is considered a purchase of a business for accounting purposes, pro forma income statement information is not presented because the FNFG branch acquisition does not represent the acquisition of a business which has continuity both before and after the acquisition. The following table shows the assets acquired, and the liabilities assumed that were recorded at fair value on the date of acquisition (in thousands): Recognized amounts of identifiable assets acquired and (liabilities assumed), at fair value (1) Cash and cash equivalents (2) $ 1,119,084 Loans 455,857 Core deposit intangible 25,732 Wealth Management intangible 1,143 Other assets 16,684 Total assets acquired 1,618,500 Deposits (1,642,846 ) Other liabilities (21,224 ) Total liabilities assumed (1,664,070 ) Goodwill $ 45,570 (1) Preliminary estimates of fair value have been recorded. (2) Amount is net of $ 76.6 million deposit premium paid to FNFG. We estimated the fair value of loans acquired from FNFG by utilizing a methodology wherein similar loans were aggregated into pools. Cash flows for each pool were determined by estimating future credit losses and the rate of prepayments. Projected monthly cash flows were then discounted to present value based on a market rate for similar loans. There was no carryover of FNFG’s allowance for loan losses associated with the loans we acquired as the loans were initially recorded at fair value. We did not acquire any purchased credit impaired loans which would require accounting under ASC 310-30. The $ 25.7 million core deposit and the $ 1.1 million wealth management intangible assets recognized as part of the FNFG acquisition are being amortized over their estimated useful life of approximately 11 and 7 years, respectively, using an accelerated method. The goodwill, which is not amortized for book purposes, was assigned to our Community Banking segment and is deductible for tax purposes. The fair value of savings and transaction deposit accounts acquired from FNFG was assumed to approximate the carrying value as these accounts have no stated maturity and are payable on demand. Certificates of deposit were valued by projecting out the expected cash flows based on the remaining contractual terms of the certificate of deposit. These cash flows were discounted based on a market rate for a certificate of deposit with a corresponding remaining maturity. Direct costs related to the FNFG acquisition were expensed as incurred and amounted to $ 8.2 million for the nine months ended September 30, 2016 , which includes technology and communications costs, professional services, marketing and advertising, and other noninterest expenses.

Business Segments

Business Segments	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Business Segments	Business Segments We operate in two reportable business segments: Community Banking and Consumer Finance. The Community Banking segment provides services traditionally offered by full-service community banks, including business and personal deposit accounts and business and personal loans, as well as insurance, brokerage and investment management and trust services. The Consumer Finance segment, which is comprised of Northwest Consumer Discount Company, a subsidiary of Northwest, operates 51 offices in Pennsylvania and offers personal installment loans for a variety of consumer and real estate products. This activity is funded primarily through an intercompany borrowing relationship with Allegheny Services, Inc., a subsidiary of Northwest. Net income is the primary measure used by management to measure segment performance. The following tables provide financial information for these reportable segments. The “All Other” column represents the parent company and elimination entries necessary to reconcile to the consolidated amounts presented in the financial statements. At or for the quarter ended (in thousands): Community Consumer September 30, 2016 Banking Finance All other (1) Consolidated External interest income $ 81,597 4,264 239 86,100 Intersegment interest income/ expense 645 — (645 ) — Interest expense 6,338 645 471 7,454 Provision for loan losses 4,276 1,262 — 5,538 Noninterest income 20,424 372 22 20,818 Noninterest expense 71,932 2,908 192 75,032 Income tax expense (benefit) 5,147 (74 ) (376 ) 4,697 Net income $ 14,973 (105 ) (671 ) 14,197 Total assets $ 9,590,487 109,601 14,519 9,714,607 Community Consumer September 30, 2015 Banking Finance All other (1) Consolidated External interest income $ 76,357 4,517 217 81,091 Intersegment interest income/ expense 618 — (618 ) — Interest expense 12,991 618 541 14,150 Provision for loan losses 2,666 501 — 3,167 Noninterest income 17,756 362 22 18,140 Noninterest expense 59,793 3,151 860 63,804 Income tax expense (benefit) 5,617 250 (629 ) 5,238 Net income $ 13,664 359 (1,151 ) 12,872 Total assets $ 8,805,421 111,109 18,378 8,934,908 (1) Eliminations consist of intercompany loans, interest income and interest expense. At or for the nine months ended (in thousands): Community Consumer September 30, 2016 Banking Finance All other (1) Consolidated External interest income $ 244,572 12,831 689 258,092 Intersegment interest income 1,918 — (1,918 ) — Interest expense 27,943 1,918 1,347 31,208 Provision for loan losses 8,854 2,543 — 11,397 Noninterest income 59,278 1,152 111 60,541 Noninterest expense 231,983 8,715 870 241,568 Income tax expense (benefit) 10,144 335 (1,192 ) 9,287 Net income $ 26,844 472 (2,143 ) 25,173 Total assets $ 9,590,487 109,601 14,519 9,714,607 Community Consumer September 30, 2015 Banking Finance All other (1) Consolidated External interest income $ 219,961 13,339 641 233,941 Intersegment interest income 1,775 — (1,775 ) — Interest expense 38,660 1,775 1,406 41,841 Provision for loan losses 3,766 1,351 — 5,117 Noninterest income 48,162 1,043 85 49,290 Noninterest expense 161,915 9,185 1,550 172,650 Income tax expense (benefit) 19,835 859 (1,418 ) 19,276 Net income $ 45,722 1,212 (2,587 ) 44,347 Total assets $ 8,805,421 111,109 18,378 8,934,908 (1) Eliminations consist of intercompany loans, interest income and interest expense.

Investment securities and impai

Investment securities and impairment of investment securities	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Investment securities and impairment of investment securities	Investment securities and impairment of investment securities The following table shows the portfolio of investment securities available-for-sale at September 30, 2016 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by the U.S. government and agencies: Due in one year or less $ 7 — — 7 Debt issued by government sponsored enterprises: Due in one year or less 59,980 74 — 60,054 Due after one year through five years 252,073 579 (128 ) 252,524 Due after five years through ten years 625 — — 625 Equity securities 3,351 547 (6 ) 3,892 Municipal securities: Due in one year or less 2,201 9 — 2,210 Due after one year through five years 11,343 191 (2 ) 11,532 Due after five years through ten years 10,272 315 — 10,587 Due after ten years 45,137 1,595 — 46,732 Corporate debt issues: Due after ten years 14,445 3,294 (349 ) 17,390 Residential mortgage-backed securities: Fixed rate pass-through 184,225 3,312 (84 ) 187,453 Variable rate pass-through 46,067 2,114 (5 ) 48,176 Fixed rate non-agency CMOs 1,810 244 — 2,054 Fixed rate agency CMOs 177,317 681 (1,005 ) 176,993 Variable rate agency CMOs 70,288 318 (147 ) 70,459 Total residential mortgage-backed securities 479,707 6,669 (1,241 ) 485,135 Total marketable securities available-for-sale $ 879,141 13,273 (1,726 ) 890,688 The following table shows the portfolio of investment securities available-for-sale at December 31, 2015 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by the U.S. government and agencies: Due in one year or less $ 11 — — 11 Debt issued by government sponsored enterprises: Due in one year or less 15,500 3 (48 ) 15,455 Due after one year through five years 257,463 298 (1,395 ) 256,366 Due after five years through ten years 12,721 14 (23 ) 12,712 Due after ten years 9,815 135 (43 ) 9,907 Equity securities 1,400 500 (6 ) 1,894 Municipal securities: Due in one year or less 1,684 8 — 1,692 Due after one year through five years 14,327 117 (4 ) 14,440 Due after five years through ten years 12,400 323 — 12,723 Due after ten years 52,286 1,727 — 54,013 Corporate debt issues: Due after ten years 14,463 2,417 (405 ) 16,475 Residential mortgage-backed securities: Fixed rate pass-through 118,266 2,480 (420 ) 120,326 Variable rate pass-through 54,292 2,616 (7 ) 56,901 Fixed rate non-agency CMOs 2,519 230 — 2,749 Fixed rate agency CMOs 215,719 389 (3,881 ) 212,227 Variable rate agency CMOs 86,090 476 (52 ) 86,514 Total residential mortgage-backed securities 476,886 6,191 (4,360 ) 478,717 Total marketable securities available-for-sale $ 868,956 11,733 (6,284 ) 874,405 The following table shows the portfolio of investment securities held-to-maturity at September 30, 2016 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Municipal securities: Due after five years through ten years $ 274 1 — 275 Due after ten years 4,807 107 — 4,914 Residential mortgage-backed securities: Fixed rate pass-through 5,276 315 — 5,591 Variable rate pass-through 3,019 69 — 3,088 Fixed rate agency CMOs 8,353 163 — 8,516 Variable rate agency CMOs 855 10 — 865 Total residential mortgage-backed securities 17,503 557 — 18,060 Total marketable securities held-to-maturity $ 22,584 665 — 23,249 The following table shows the portfolio of investment securities held-to-maturity at December 31, 2015 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Municipal securities: Due after five years through ten years $ 274 1 — 275 Due after ten years 6,336 239 — 6,575 Residential mortgage-backed securities: Fixed rate pass-through 6,458 351 — 6,809 Variable rate pass-through 3,618 41 — 3,659 Fixed rate agency CMOs 14,033 219 — 14,252 Variable rate agency CMOs 970 12 — 982 Total residential mortgage-backed securities 25,079 623 — 25,702 Total marketable securities held-to-maturity $ 31,689 863 — 32,552 The following table shows the fair value of 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 September 30, 2016 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ 145,648 (106 ) 10,376 (22 ) 156,024 (128 ) Municipal securities 2,334 (2 ) 66 — 2,400 (2 ) Corporate issues — — 2,079 (349 ) 2,079 (349 ) Equity securities — — 545 (6 ) 545 (6 ) Residential mortgage-backed securities - agency 101,252 (198 ) 84,101 (1,043 ) 185,353 (1,241 ) Total temporarily impaired securities $ 249,234 (306 ) 97,167 (1,420 ) 346,401 (1,726 ) The following table shows the fair value of 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, 2015 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ 143,751 (723 ) 92,961 (786 ) 236,712 (1,509 ) Municipal securities 7,505 (4 ) — — 7,505 (4 ) Corporate debt issues — — 2,021 (405 ) 2,021 (405 ) Equity securities 544 (6 ) — — 544 (6 ) Residential mortgage-backed securities - agency 122,109 (598 ) 149,889 (3,762 ) 271,998 (4,360 ) Total temporarily impaired securities $ 273,909 (1,331 ) 244,871 (4,953 ) 518,780 (6,284 ) We review our investment portfolio for indications of impairment. This review includes analyzing the length of time and the extent to which amortized costs have exceeded fair values, the financial condition and near-term prospects of the issuer, including any specific events which may influence the operations of the issuer, and the intent to hold the investments for a period of time sufficient to allow for a recovery in value. Certain investments are evaluated using our best estimate of future cash flows. If the estimate of cash flows indicates that an adverse change has occurred, other-than-temporary impairment is recognized for the amount of the unrealized loss that was deemed credit related. Credit related impairment on all debt securities is recognized in earnings while noncredit related impairment on available-for-sale debt securities, not expected to be sold, is recognized in other comprehensive income. The table below shows a cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold for the quarter and nine months ended (in thousands): 2016 2015 Beginning balance at July 1, (1) $ 8,408 8,489 Credit losses on debt securities for which other-than-temporary impairment was not previously recognized — — Reduction for losses realized during the quarter (16 ) (30 ) Reduction for securities sold/ called realized during the quarter — — Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized — — Ending balance at September 30, $ 8,392 $ 8,459 (1) The beginning balance represents credit losses included in other-than-temporary impairment charges recognized on debt securities in prior periods. 2016 2015 Beginning balance at January 1, (1) $ 8,436 8,894 Credit losses on debt securities for which other-than-temporary impairment was not previously recognized — — Reduction for losses realized during the nine months (44 ) (75 ) Reduction for securities sold/ called realized during the nine months — (360 ) Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized — — Ending balance at September 30, $ 8,392 8,459 (1) The beginning balance represents credit losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

Loans receivable

Loans receivable	9 Months Ended
	Sep. 30, 2016
Receivables [Abstract]
Loans receivable	Loans receivable The following table shows a summary of our loans receivable at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 December 31, 2015 Originated Acquired Total Originated Acquired Total Personal Banking: Residential mortgage loans (1) $ 2,678,757 142,360 2,821,117 2,695,561 45,716 2,741,277 Home equity loans 1,028,982 320,123 1,349,105 1,055,907 131,199 1,187,106 Consumer loans 436,847 180,488 617,335 313,220 197,397 510,617 Total Personal Banking 4,144,586 642,971 4,787,557 4,064,688 374,312 4,439,000 Commercial Banking: Commercial real estate loans 2,213,678 422,669 2,636,347 2,094,710 429,564 2,524,274 Commercial loans 486,353 83,433 569,786 372,540 65,175 437,715 Total Commercial Banking 2,700,031 506,102 3,206,133 2,467,250 494,739 2,961,989 Total loans receivable, gross 6,844,617 1,149,073 7,993,690 6,531,938 869,051 7,400,989 Deferred loan costs 18,819 3,510 22,329 14,806 5,259 20,065 Allowance for loan losses (58,024 ) (5,222 ) (63,246 ) (60,970 ) (1,702 ) (62,672 ) Undisbursed loan proceeds: Residential mortgage loans (13,256 ) — (13,256 ) (10,778 ) — (10,778 ) Commercial real estate loans (167,915 ) (3,751 ) (171,666 ) (159,553 ) (13,287 ) (172,840 ) Commercial loans (30,240 ) (2,291 ) (32,531 ) (11,132 ) (4,183 ) (15,315 ) Total loans receivable, net $ 6,594,001 1,141,319 7,735,320 6,304,311 855,138 7,159,449 (1) Includes $30.4 million of loans held for sale at September 30, 2016 . Acquired loans were initially measured at fair value and subsequently accounted for under either Accounting Standards Codification (“ASC”) Topic 310-30 or ASC Topic 310-20. The following table provides information related to the outstanding principal balance and related carrying value of acquired loans for the dates indicated (in thousands): September 30, December 31, Acquired loans evaluated individually for future credit losses: Outstanding principal balance $ 17,212 $ 21,069 Carrying value 13,641 16,867 Acquired loans evaluated collectively for future credit losses: Outstanding principal balance 1,141,343 848,194 Carrying value 1,132,900 839,973 Total acquired loans: Outstanding principal balance 1,158,555 869,263 Carrying value 1,146,541 856,840 The following table provides information related to the changes in the accretable discount, which includes income recognized from contractual cash flows for the dates indicated (in thousands): Total Balance at December 31, 2014 $ — LNB Bancorp, Inc. acquisition 1,672 Accretion (377 ) Net reclassification from nonaccretable yield 724 Balance at December 31, 2015 2,019 Accretion (851 ) Net reclassification from nonaccretable yield 1,080 Balance at September 30, 2016 $ 2,248 The following table provides information related to acquired impaired loans by portfolio segment and by class of financing receivable at and for the nine months ended September 30, 2016 (in thousands): Carrying value Outstanding principal balance Related impairment reserve Average recorded investment in impaired loans Interest income recognized Personal Banking: Residential mortgage loans $ 1,381 2,153 184 1,681 154 Home equity loans 1,407 2,739 8 1,746 150 Consumer loans 169 353 3 218 32 Total Personal Banking 2,957 5,245 195 3,645 336 Commercial Banking: Commercial real estate loans 10,434 11,703 62 11,361 507 Commercial loans 250 264 — 248 8 Total Commercial Banking 10,684 11,967 62 11,609 515 Total $ 13,641 17,212 257 15,254 851 The following table provides information related to acquired impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2015 (in thousands): Carrying Outstanding Related Average Interest Personal Banking: Residential mortgage loans $ 1,981 2,910 14 2,083 41 Home equity loans 2,084 3,455 6 2,222 51 Consumer loans 267 492 2 305 18 Total Personal Banking 4,332 6,857 22 4,610 110 Commercial Banking: Commercial real estate loans 12,288 13,946 353 12,867 249 Commercial loans 247 266 — 335 18 Total Commercial Banking 12,535 14,212 353 13,202 267 Total $ 16,867 21,069 375 17,812 377 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the quarter ended September 30, 2016 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Originated loans: Personal Banking: Residential mortgage loans $ 4,002 1,109 (268 ) 139 3,022 Home equity loans 3,519 296 (161 ) 49 3,335 Consumer loans 9,096 3,345 (2,535 ) 362 7,924 Total Personal Banking 16,617 4,750 (2,964 ) 550 14,281 Commercial Banking: Commercial real estate loans 24,530 (1,041 ) (602 ) 487 25,686 Commercial loans 16,877 1,668 (708 ) 561 15,356 Total Commercial Banking 41,407 627 (1,310 ) 1,048 41,042 Total originated loans 58,024 5,377 (4,274 ) 1,598 55,323 Acquired loans: Personal Banking: Residential mortgage loans 78 45 (86 ) 58 61 Home equity loans 1,171 138 (127 ) 32 1,128 Consumer loans 644 212 (166 ) 46 552 Total Personal Banking 1,893 395 (379 ) 136 1,741 Commercial Banking: Commercial real estate loans 2,422 (588 ) (187 ) 32 3,165 Commercial loans 907 354 — 1 552 Total Commercial Banking 3,329 (234 ) (187 ) 33 3,717 Total acquired loans 5,222 161 (566 ) 169 5,458 Total $ 63,246 5,538 (4,840 ) 1,767 60,781 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the quarter ended September 30, 2015 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Personal Banking: Residential mortgage loans $ 4,587 (14 ) (342 ) 51 4,892 Home equity loans 3,371 274 (443 ) 95 3,445 Consumer loans 7,618 3,000 (2,014 ) 388 6,244 Total Personal Banking 15,576 3,260 (2,799 ) 534 14,581 Commercial Banking: Commercial real estate loans 30,829 111 (558 ) 1,113 30,163 Commercial loans 14,142 (204 ) (595 ) 628 14,313 Total Commercial Banking 44,971 (93 ) (1,153 ) 1,741 44,476 Total $ 60,547 3,167 (3,952 ) 2,275 59,057 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the nine months ended September 30, 2016 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Originated loans: Personal Banking: Residential mortgage loans $ 4,002 1,612 (2,559 ) 257 4,692 Home equity loans 3,519 253 (898 ) 223 3,941 Other consumer loans 9,096 7,368 (6,908 ) 1,148 7,488 Total Personal Banking 16,617 9,233 (10,365 ) 1,628 16,121 Commercial Banking: Commercial real estate loans 24,530 (8,756 ) (2,103 ) 3,041 32,348 Commercial loans 16,877 5,008 (1,704 ) 1,072 12,501 Total Commercial Banking 41,407 (3,748 ) (3,807 ) 4,113 44,849 Total originated loans 58,024 5,485 (14,172 ) 5,741 60,970 Acquired loans: Personal Banking: Residential mortgage loans 78 118 (211 ) 153 18 Home equity loans 1,171 2,093 (1,320 ) 297 101 Other consumer loans 644 925 (528 ) 137 110 Total Personal Banking 1,893 3,136 (2,059 ) 587 229 Commercial Banking: Commercial real estate loans 2,422 1,886 (1,314 ) 411 1,439 Commercial loans 907 890 (24 ) 7 34 Total Commercial Banking 3,329 2,776 (1,338 ) 418 1,473 Total acquired loans 5,222 5,912 (3,397 ) 1,005 1,702 Total $ 63,246 11,397 (17,569 ) 6,746 62,672 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the nine months ended September 30, 2015 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Personal Banking: Residential mortgage loans $ 4,587 (220 ) (955 ) 181 5,581 Home equity loans 3,371 (126 ) (1,327 ) 274 4,550 Other consumer loans 7,618 6,135 (5,713 ) 1,078 6,118 Total Personal Banking 15,576 5,789 (7,995 ) 1,533 16,249 Commercial Banking: Commercial real estate loans 30,829 (1,205 ) (5,110 ) 3,755 33,389 Commercial loans 14,142 4,898 (7,675 ) 3,404 13,515 Total Commercial Banking 44,971 3,693 (12,785 ) 7,159 46,904 Unallocated — (4,365 ) — — 4,365 Total $ 60,547 5,117 (20,780 ) 8,692 67,518 At September 30, 2016 , we expect to fully collect the carrying value of our purchased credit impaired loans and have determined that we can reasonably estimate their future cash flows including those loans that are 90 days or more delinquent. As a result, we do not consider our purchased credit impaired loans that are 90 days or more delinquent to be nonaccrual or impaired and continue to recognize interest income on these loans, including the loans’ accretable discount. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at September 30, 2016 (in thousands): Total loans receivable Allowance for loan losses Nonaccrual loans (1) Loans past due 90 days or more and still accruing (2) TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,819,013 4,080 17,919 — 7,174 735 — Home equity loans 1,349,105 4,690 8,100 — 1,962 471 3 Consumer loans 628,512 9,740 4,279 95 — — — Total Personal Banking 4,796,630 18,510 30,298 95 9,136 1,206 3 Commercial Banking: Commercial real estate loans 2,464,681 26,952 42,066 — 26,435 2,038 280 Commercial loans 537,255 17,784 13,908 8 11,024 1,453 17 Total Commercial Banking 3,001,936 44,736 55,974 8 37,459 3,491 297 Total $ 7,798,566 63,246 86,272 103 46,595 4,697 300 (1) Includes $17.4 million of nonaccrual TDRs. (2) Represents loans 90 days past maturity and still accruing. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2015 (in thousands): Total loans receivable Allowance for loan losses Nonaccrual loans (1) Loans past due 90 days or more and still accruing (2) TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,740,892 4,710 19,772 4 6,360 1,189 — Home equity loans 1,187,106 4,042 7,522 — 2,298 605 — Consumer loans 520,289 7,598 3,452 976 — — — Total Personal Banking 4,448,287 16,350 30,746 980 8,658 1,794 — Commercial Banking: Commercial real estate loans 2,351,434 33,787 33,421 206 31,970 2,257 241 Commercial loans 422,400 12,535 7,495 148 10,487 631 79 Total Commercial Banking 2,773,834 46,322 40,916 354 42,457 2,888 320 Total $ 7,222,121 62,672 71,662 1,334 51,115 4,682 320 (1) Includes $21.1 million of nonaccrual TDRs. (2) Represents loans 90 days past maturity and still accruing. The following table provides geographical information related to the loan portfolio by portfolio segment and class of financing receivable at September 30, 2016 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans receivable: Personal Banking: Residential mortgage loans $ 2,285,555 286,147 70,507 121,013 55,791 2,819,013 Home equity loans 858,767 284,095 146,040 22,713 37,490 1,349,105 Consumer loans 268,458 71,558 117,944 1,996 168,556 628,512 Total Personal Banking 3,412,780 641,800 334,491 145,722 261,837 4,796,630 Commercial Banking: Commercial real estate loans 967,962 875,066 464,068 113,605 43,980 2,464,681 Commercial loans 365,924 95,997 55,758 7,034 12,542 537,255 Total Commercial Banking 1,333,886 971,063 519,826 120,639 56,522 3,001,936 Total $ 4,746,666 1,612,863 854,317 266,361 318,359 7,798,566 Percentage of total loans receivable 60.9 % 20.6 % 11.0 % 3.4 % 4.1 % 100.0 % The following table provides delinquency information related to the loan portfolio by portfolio segment and class of financing receivable at September 30, 2016 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans 90 or more days delinquent: (1) Personal Banking: Residential mortgage loans $ 9,380 1,627 831 1,229 411 13,478 Home equity loans 3,064 1,039 1,405 469 45 6,022 Consumer loans 2,951 122 58 — 241 3,372 Total Personal Banking 15,395 2,788 2,294 1,698 697 22,872 Commercial Banking: Commercial real estate loans 7,209 2,697 8,261 110 6,256 24,533 Commercial loans 5,061 137 942 109 — 6,249 Total Commercial Banking 12,270 2,834 9,203 219 6,256 30,782 Total $ 27,665 5,622 11,497 1,917 6,953 53,654 Percentage of total loans 90 or more days delinquent 51.5 % 10.5 % 21.4 % 3.6 % 13.0 % 100.0 % (1) Includes $2.9 million of purchased credit impaired loans considered accruing. The following table provides geographical information related to the loan portfolio by portfolio segment and class of financing receivable at December 31, 2015 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans receivable: Personal Banking: Residential mortgage loans $ 2,310,860 171,790 70,209 129,129 58,904 2,740,892 Home equity loans 879,447 124,291 154,003 24,458 4,907 1,187,106 Consumer loans 260,170 12,244 102,034 1,870 143,971 520,289 Total Personal Banking 3,450,477 308,325 326,246 155,457 207,782 4,448,287 Commercial Banking: Commercial real estate loans 965,090 749,435 453,180 122,775 60,954 2,351,434 Commercial loans 284,611 53,420 68,327 5,662 10,380 422,400 Total Commercial Banking 1,249,701 802,855 521,507 128,437 71,334 2,773,834 Total $ 4,700,178 1,111,180 847,753 283,894 279,116 7,222,121 Percentage of total loans receivable 65.1 % 15.4 % 11.7 % 3.9 % 3.9 % 100.0 % The following table provides delinquency information related to the loan portfolio by portfolio segment and class of financing receivable at December 31, 2015 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans 90 or more days delinquent: (1) Personal Banking: Residential mortgage loans $ 10,998 1,801 1,308 1,341 902 16,350 Home equity loans 3,204 639 1,294 975 — 6,112 Consumer loans 2,780 90 24 — 32 2,926 Total Personal Banking 16,982 2,530 2,626 2,316 934 25,388 Commercial Banking: Commercial real estate loans 10,439 3,012 4,823 251 506 19,031 Commercial loans 1,582 859 158 — — 2,599 Total Commercial Banking 12,021 3,871 4,981 251 506 21,630 Total $ 29,003 6,401 7,607 2,567 1,440 47,018 Percentage of total loans 90 or more days delinquent 61.6 % 13.6 % 16.2 % 5.5 % 3.1 % 100.0 % (1) Includes $3.8 million of purchased credit impaired loans considered accruing. The following table provides information related to the composition of originated impaired loans by portfolio segment and by class of financing receivable at and for the nine months ended September 30, 2016 (in thousands): Nonaccrual loans 90 or more days delinquent Nonaccrual loans less than 90 days delinquent Loans less than 90 days delinquent reviewed for impairment TDRs less than 90 days delinquent not included elsewhere Total impaired loans Average recorded investment in impaired loans Interest income recognized on impaired loans Personal Banking: Residential mortgage loans $ 13,242 4,677 — 6,330 24,249 24,401 819 Home equity loans 5,874 2,226 — 1,476 9,576 9,155 368 Consumer loans 3,354 925 — — 4,279 3,322 116 Total Personal Banking 22,470 7,828 — 7,806 38,104 36,878 1,303 Commercial Banking: Commercial real estate loans 22,155 19,911 4,838 10,929 57,833 67,422 2,258 Commercial loans 6,105 7,803 2,893 3,634 20,435 17,158 733 Total Commercial Banking 28,260 27,714 7,731 14,563 78,268 84,580 2,991 Total $ 50,730 35,542 7,731 22,369 116,372 121,458 4,294 The following table provides information related to the composition of originated impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2015 (in thousands): Nonaccrual loans 90 or more days delinquent Nonaccrual loans less than 90 days delinquent Loans less than 90 days delinquent reviewed for impairment TDRs less than 90 days delinquent not included elsewhere Total impaired loans Average recorded investment in impaired loans Interest income recognized on impaired loans Personal Banking: Residential mortgage loans $ 15,810 3,962 — 5,086 24,858 24,554 944 Home equity loans 5,650 1,872 — 1,847 9,369 9,644 497 Consumer loans 2,900 552 — — 3,452 2,977 101 Total Personal Banking 24,360 6,386 — 6,933 37,679 37,175 1,542 Commercial Banking: Commercial real estate loans 16,449 16,972 16,121 16,467 66,009 77,166 3,226 Commercial loans 2,459 5,036 2,014 4,654 14,163 16,187 694 Total Commercial Banking 18,908 22,008 18,135 21,121 80,172 93,353 3,920 Total $ 43,268 28,394 18,135 28,054 117,851 130,528 5,462 The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable at September 30, 2016 (in thousands): Loans collectively evaluated for impairment Loans individually evaluated for impairment Loans individually evaluated for impairment for which there is a related impairment reserve Related impairment reserve Loans individually evaluated for impairment for which there is no related reserve Personal Banking: Residential mortgage loans $ 2,810,996 8,017 8,017 735 — Home equity loans 1,347,143 1,962 1,962 471 — Consumer loans 628,438 74 74 17 — Total Personal Banking 4,786,577 10,053 10,053 1,223 — Commercial Banking: Commercial real estate loans 2,424,492 40,189 32,587 3,636 7,602 Commercial loans 525,006 12,249 12,249 1,513 — Total Commercial Banking 2,949,498 52,438 44,836 5,149 7,602 Total $ 7,736,075 62,491 54,889 6,372 7,602 The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable at December 31, 2015 (in thousands): Loans collectively evaluated for impairment Loans individually evaluated for impairment Loans individually evaluated for impairment for which there is a related impairment reserve Related impairment reserve Loans individually evaluated for impairment for which there is no related reserve Personal Banking: Residential mortgage loans $ 2,733,741 7,151 7,151 1,189 — Home equity loans 1,184,808 2,298 2,298 605 — Consumer loans 520,159 130 130 50 — Total Personal Banking 4,438,708 9,579 9,579 1,844 — Commercial Banking: Commercial real estate loans 2,297,599 53,835 35,937 2,675 17,898 Commercial loans 411,342 11,058 7,673 489 3,385 Total Commercial Banking 2,708,941 64,893 43,610 3,164 21,283 Total $ 7,147,649 74,472 53,189 5,008 21,283 Our loan portfolios include loans that have been modified in a troubled debt restructuring ("TDR"), where 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 may be 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 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 (in thousands): For the quarters ended September 30, 2016 2015 Number of contracts Amount Number of contracts Amount Beginning TDR balance: 230 $ 49,113 231 $ 56,184 New TDRs 5 245 5 2,273 Re-modified TDRs 1 799 1 6,316 Net paydowns (1,781 ) (7,096 ) Charge-offs: Residential mortgage loans — — — — Home equity loans — — 1 (60 ) Commercial real estate loans — — 1 (5 ) Commercial loans 1 (99 ) — — Paid-off loans: Residential mortgage loans 3 (143 ) — — Home equity loans 2 (264 ) 2 (75 ) Commercial real estate loans 8 (1,022 ) 6 (8,122 ) Commercial loans 3 (253 ) 2 (77 ) Ending TDR balance: 218 $ 46,595 224 $ 49,338 Accruing TDRs $ 29,221 $ 26,154 Non-accrual TDRs 17,374 23,184 The following table provides a roll forward of troubled debt restructurings for the periods indicated (in thousands): For the nine months ended September 30, 2016 2015 Number of contracts Number of contracts Beginning TDR balance: 227 $ 51,115 248 $ 61,788 New TDRs 23 5,256 11 2,772 Re-modified TDRs 5 1,862 3 6,446 Net paydowns (4,685 ) (11,537 ) Charge-offs: Residential mortgage loans — — — — Home equity loans — — 4 (159 ) Commercial real estate loans — — 3 (28 ) Commercial loans 2 (142 ) 2 (387 ) Paid-off loans: Residential mortgage loans 3 (143 ) 1 (53 ) Home equity loans 5 (496 ) 3 (81 ) Commercial real estate loans 16 (5,584 ) 14 (9,127 ) Commercial loans 6 (588 ) 8 (296 ) Ending TDR balance: 218 $ 46,595 224 $ 49,338 Accruing TDRs $ 29,221 $ 26,154 Non-accrual TDRs 17,374 23,184 The following table provides information related to troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (dollars in thousands): For the quarter ended For the nine months ended September 30, 2016 Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Troubled debt restructurings: Personal Banking: Residential mortgage loans 1 $ 9 8 1 6 $ 1,041 1,031 105 Home equity loans 1 3 3 1 6 284 281 60 Consumer loans — — — — — — — — Total Personal Banking 2 12 11 2 12 1,325 1,312 165 Commercial Banking: Commercial real estate loans 1 154 153 11 5 2,250 2,218 295 Commercial loans 3 878 877 64 11 3,543 2,591 632 Total Commercial Banking 4 1,032 1,030 75 16 5,793 4,809 927 Total 6 $ 1,044 1,041 77 28 $ 7,118 6,121 1,092 Troubled debt restructurings modified within the previous twelve months that have subsequently defaulted: Personal Banking: Residential mortgage loans — $ — — — — $ — — — Home equity loans — — — — — — — — Consumer loans — — — — — — — — Total Personal Banking — — — — — — — — Commercial Banking Commercial real estate loans 1 6,256 6,113 893 — — — — Commercial loans — — — — — — — — Total Commercial Banking 1 6,256 6,113 893 — — — — Total 1 $ 6,256 6,113 893 — $ — — — The following table provides information related to troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (dollars in thousands): For the quarter ended For the nine months ended September 30, 2015 Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Troubled debt restructurings: Personal Banking: Residential mortgage loans — $ — — — 4 $ 232 228 — Home equity loans — — — — 2 87 85 17 Consumer loans — — — — — — — — Total Personal Banking — — — — 6 319 313 17 Commercial Banking: Commercial real estate loans 5 8,563 8,511 980 6 8,575 8,522 981 Commercial loans 1 26 25 3 2 324 313 31 Total Commercial Banking 6 8,589 8,536 983 8 8,899 8,835 1,012 Total 6 $ 8,589 8,536 983 14 $ 9,218 9,148 1,029 Troubled debt restructurings modified within the previous twelve months that have subsequently defaulted: Personal Banking: Residential mortgage loans — $ — — — 1 $ 251 249 — Home equity loans — — — — 1 23 20 — Consumer loans — — — — — — — — Total Personal Banking — — — — 2 274 269 — Commercial Banking: Commercial real estate loans — — — — — — — — Commercial loans — — — — — — — — Total Commercial Banking — — — — — — — — Total — $ — — — 2 $ 274 269 — The following table provides information as of September 30, 2016 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended September 30, 2016 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ — — 8 — 8 Home equity loans 1 — — 3 — 3 Consumer loans — — — — — — Total Personal Banking 2 — — 11 — 11 Commercial Banking: Commercial real estate loans 1 — — 153 — 153 Commercial loans 3 — 799 78 — 877 Total Commercial Banking 4 — 799 231 — 1,030 Total 6 $ — 799 242 — 1,041 The following table provides information as of September 30, 2015 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended September 30, 2015 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 5 180 — 8,331 — 8,511 Commercial loans 1 — — 25 — 25 Total Commercial Banking 6 180 — 8,356 — 8,536 Total 6 $ 180 — 8,356 — 8,536 The following table provides information as of September 30, 2016 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the nine months ended September 30, 2016 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 6 $ 361 — 622 48 1,031 Home equity loans 6 121 — 3 157 281 Other consumer loans — — — — — — Total Personal Banking 12 482 — 625 205 1,312 Commercial Banking: Commercial real estate loans 5 — 429 535 1,254 2,218 Commercial loans 11 — 799 1,042 750 2,591 Total Commercial Banking 16 — 1,228 1,577 2,004 4,809 Total 28 $ 482 1,228 2,202 2,209 6,121 The following table provides information as of September 30, 2015 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the nine months ended September 30, 2015 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 4 $ 73 — 110 45 228 Home equity loans 2 83 — 2 — 85 Other consumer loans — — — — — — Total Personal Banking 6 156 — 112 45 313 Commercial Banking: Commercial real estate loans 6 180 — 8,342 — 8,522 Commercial loans 2 — — 313 — 313 Total Commercial Banking 8 180 — 8,655 — 8,835 Total 14 $ 336 — 8,767 45 9,148 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the quarter ended September 30, 2016 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans — — — — — — Commercial loans 1 — 799 — — 799 Total Commercial Banking 1 — 799 — — 799 Total 1 $ — 799 — — 799 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the quarter ended September 30, 2015 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 1 — — 6,270 — 6,270 Commercial loans — — — — — — Total Commercial Banking 1 — — 6,270 — 6,270 Total 1 $ — — 6,270 — 6,270 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the nine months ended September 30, 2016 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Other consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 1 — — — 182 182 Commercial loans 4 — 1,662 — — 1,662 Total Commercial Banking 5 — 1,662 — 182 1,844 Total 5 $ — 1,662 — 182 1,844 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the nine months ended September 30, 2015 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ — — — 45 45 Home equity loans 1 83 — — — 83 Other consumer loans — — — — — — Total Personal Banking 2 83 — — 45 128 Commercial Banking: Commercial real estate loans 1 — — 6,270 — 6,270 Commercial loans — — — — — — Total Commercial Banking 1 — — 6,270 — 6,270 Total 3 $ 83 — 6,270 45 6,398 The following table provides information related to loan payment delinquencies at September 30, 2016 (in thousands): 30-59 Days delinquent 60-89 Days delinquent 90 Days or greater delinquent Total delinquency Current Total loans receivable 90 Days or greater delinquent and accruing (1) Originated loans: Personal Banking: Residential mortgage loans $ 3,322 5,568 12,855 21,745 2,654,908 2,676,653 — Home equity loans 4,130 910 4,817 9,857 1,019,125 1,028,982 — Consumer loans 6,565 2,368 3,163 12,096 432,418 444,514 — Total Personal Banking 14,017 8,846 20,835 43,698 4,106,451 4,150,149 — Commercial Banking: Commercial real estate loans 3,432 487 16,698 20,617 2,025,146 2,045,763 — Commercial loans 1,270 443 5,309 7,022 449,091 456,113 — Total Commercial Banking 4,702 930 22,007 27,639 2,474,237 2,501,876 — Total originated loans 18,719 9,776 42,842 71,337 6,580,688 6,652,025 — Acquired loans: Personal Banking: Residential mortgage loans 58 606 623 1,287 141,073 142,360 235 Home equity loans 854 235 1,205 2,294 317,829 320,123 148 Consumer loans 1,018 305 209 1,532 182,466 183,998 18 Total Personal Banking 1,930 1,146 2,037 5,113 641,368 646,481 401 Commercial Banking: Commercial real estate loans 423 615 7,835 8,873 410,045 418,918 2,378 Commercial loans 223 151 940 1,314 79,828 81,142 144 Total Commercial Banking 646 766 8,775 10,187 489,873 500,060 2,522 Total acquired loans 2,576 1,912 10,812 15,300 1,131,241 1,146,541 2,923 Total loans $ 21,295 11,688 53,654 86,637 7,711,929 7,798,566 2,923 (1) Represents acquired loans that were originally recorded at fair value upon acquisition. These loans are considered to be accruing because we can reasonably estimate future cash flows on and expect to fully collect the carrying value of these loans. Therefore, we are accreting the difference between the carrying value and their expected cash flows into interest income. The following table provides information related to loan payment delinquencies at December 31, 2015 (in thousands): 30-59 Days delinquent 60-89 Days delinquent 90 Days or greater delinquent Total delinquency Current Total loans receivable 90 Days or Originated loans: Personal Banking: Residential mortgage loans $ 25,503 7,541 15,564 48,608 2,646,568 2,695,176 — Home equity loans 4,870 1,836 5,251 11,957 1,043,950 1,055,907 — Consumer loans 6,092 2,340 2,857 11,289 306,344 317,633 — Total Personal Banking 36,465 11,717 23,672 71,854 3,996,862 4,068,716 — Commercial Banking: Commercial real estate loans 22,212 6,875

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands): September 30, December 31, Amortizable intangible assets: Core deposit intangibles — gross $ 37,953 30,578 Acquisitions 25,732 7,375 Less: accumulated amortization (32,910 ) (31,192 ) Core deposit intangibles — net 30,775 6,761 Customer and Contract intangible assets — gross 8,496 8,234 Acquisitions 1,640 262 Less: accumulated amortization (7,010 ) (6,275 ) Customer and Contract intangible assets — net $ 3,126 2,221 The following table shows the actual aggregate amortization expense for the quarters ended September 30, 2016 and 2015 , as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands): For the quarter ended September 30, 2016 $ 1,068 For the quarter ended September 30, 2015 422 For the nine months ended September 30, 2016 2,453 For the nine months ended September 30, 2015 959 For the year ending December 31, 2016 4,240 For the year ending December 31, 2017 6,655 For the year ending December 31, 2018 5,762 For the year ending December 31, 2019 4,869 For the year ending December 31, 2020 3,976 For the year ending December 31, 2021 3,170 The following table provides information for the changes in the carrying amount of goodwill (in thousands): Community Consumer Total Balance at December 31, 2014 $ 173,710 1,613 175,323 Goodwill acquired 86,413 — 86,413 Impairment losses — — — Balance at December 31, 2015 260,123 1,613 261,736 Goodwill acquired 45,975 — 45,975 Impairment losses — — — Balance at September 30, 2016 $ 306,098 1,613 307,711 We performed our annual goodwill impairment test as of June 30, 2016 and concluded that goodwill was not impaired. At September 30, 2016, there were no changes in our operations or other factors that would cause us to update that test. See Note 1 of the Notes to Consolidated Financial Statements in Item 8 of Part II of our 2015 Annual Report on Form 10-K for a description of our testing procedures.

Guarantees

Guarantees	9 Months Ended
	Sep. 30, 2016
Guarantees [Abstract]
Guarantees	Guarantees We issue standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued by the Company 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 loan underwriting procedures. Collateral may be obtained based on management’s credit assessment of the customer. At September 30, 2016 , the maximum potential amount of future payments we could be required to make under these standby letters of credit was $33.7 million , of which $24.8 million is fully collateralized. At September 30, 2016 , we had a liability, which represents deferred income, of $225,000 related to the standby letters of credit. There are no recourse provisions that would enable us to recover any amounts from third parties.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	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 the earnings of the Company. All stock options outstanding during the quarter ended September 30, 2016 were included in the computation of diluted earnings per share because the options’ exercise price was less than the average market price of the common shares of $15.19 . Stock options to purchase 534,482 shares of common stock with a weighted average exercise price of $13.15 per share were outstanding during the quarter ended September 30, 2015 but were not included in the computation of diluted earnings per share because the options’ exercise price was greater than the average market price of the common shares of $12.76 . Stock options to purchase 710,423 shares of common stock with a weighted average exercise price of $14.15 per share were outstanding during the nine months ended September 30, 2016 but were not included in the computation of diluted earnings per share because the options’ exercise price was greater than the average market price of the common shares of $14.02 . Stock options to purchase 1,712,746 shares of common stock with a weighted average exercise price of $12.63 per share were outstanding during the nine months ended September 30, 2015 but were not included in the computation of diluted earnings per share because the options’ exercise price was greater than the average market price of the common shares of $12.33 . The computation of basic and diluted earnings per share follows (in thousands, except share data and per share amounts): Quarter ended Nine months ended 2016 2015 2016 2015 Reported net income $ 14,197 12,872 25,173 44,347 Weighted average common shares outstanding 99,602,535 95,256,807 99,224,565 92,822,720 Dilutive potential shares due to effect of stock options 1,465,710 568,991 1,008,942 433,379 Total weighted average common shares and dilutive potential shares 101,068,245 95,825,798 100,233,507 93,256,099 Basic earnings per share: $ 0.14 0.14 0.25 0.48 Diluted earnings per share: $ 0.14 0.13 0.25 0.48

Pension and Other Post-retireme

Pension and Other Post-retirement Benefits	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Pension and Other Post-retirement Benefits	Pension and Other Post-retirement Benefits The following table sets forth the net periodic costs for the defined benefit pension plans and post retirement healthcare plans for the periods indicated (in thousands): Components of net periodic benefit cost Quarter ended September 30, Pension benefits Other post-retirement benefits 2016 2015 2016 2015 Service cost $ 1,374 1,430 — — Interest cost 1,695 1,531 18 14 Expected return on plan assets (2,474 ) (2,593 ) — — Amortization of prior service cost (581 ) (581 ) — — Amortization of the net loss 927 925 22 15 Net periodic (benefit)/ cost $ 941 712 40 29 Nine months ended September 30, Pension benefits Other post-retirement benefits 2016 2015 2016 2015 Service cost $ 4,122 4,290 — — Interest cost 5,087 4,593 53 44 Expected return on plan assets (7,423 ) (7,779 ) — — Amortization of prior service cost (1,742 ) (1,743 ) — — Amortization of the net loss 2,782 2,775 67 45 Net periodic (benefit)/ cost $ 2,826 2,136 120 89 We anticipate making a contribution to our defined benefit pension plan of $4.0 million to $8.0 million during the year ending December 31, 2016 .

Disclosures About Fair Value of

Disclosures About Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Disclosures About Fair Value of Financial Instruments	Disclosures About Fair Value of Financial Instruments Fair value information about financial instruments, whether or not recognized in the consolidated statement of financial condition, is required to be disclosed. These requirements exclude certain financial instruments and all nonfinancial instruments. 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 corporate debt securities do not have an active market and as such the broker pricing received uses alternative methods. The fair value of these corporate debt securities is determined by using a discounted cash flow model using market assumptions, which generally include cash flow, collateral and other market assumptions. As such, these securities are included herein 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 Held for Sale The estimated fair value of loans held for sale is based on market bids obtained from potential buyers. Loans Held for Investment Loans with comparable characteristics including collateral and re-pricing structures are segregated for valuation purposes. Characteristics 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 and the approximate discount or market rate. 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. Federal Home Loan Bank (“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 collateralized borrowings approximates the 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 expect 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 September 30, 2016 and December 31, 2015 , 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 September 30, 2016 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 320,566 320,566 320,566 — — Securities available-for-sale 890,688 890,688 3,892 877,567 9,229 Securities held-to-maturity 22,584 23,249 — 23,249 — Loans receivable, net 7,735,320 8,139,180 30,355 — 8,108,825 Accrued interest receivable 21,591 21,591 21,591 — — FHLB Stock 7,660 7,660 — — — Total financial assets $ 8,998,409 9,402,934 376,404 900,816 8,118,054 Financial liabilities: Savings and checking deposits $ 6,511,356 6,511,356 6,511,356 — — Time deposits 1,691,447 1,711,487 — — 1,711,487 Borrowed funds 135,891 135,891 135,891 — — Junior subordinated debentures 111,213 113,967 — — 113,967 Cash flow hedges - swaps 3,512 3,512 — 3,512 — Accrued interest payable 682 682 682 — — Total financial liabilities $ 8,454,101 8,476,895 6,647,929 3,512 1,825,454 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, 2015 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 167,408 167,408 167,408 — — Securities available-for-sale 874,405 874,405 1,894 863,556 8,955 Securities held-to-maturity 31,689 32,552 — 32,552 — Loans receivable, net 7,159,449 7,482,431 — — 7,482,431 Accrued interest receivable 21,072 21,072 21,072 — — FHLB Stock 40,903 40,903 — — — Total financial assets $ 8,294,926 8,618,771 190,374 896,108 7,491,386 Financial liabilities: Savings and checking accounts $ 4,917,863 4,917,863 4,917,863 — — Time deposits 1,694,718 1,710,388 — — 1,710,388 Borrowed funds 975,007 998,527 118,664 — 879,863 Junior subordinated debentures 111,213 115,268 — — 115,268 Cash flow hedges - swaps 4,276 4,276 — 4,276 — Accrued interest payable 1,993 1,993 1,993 — — Total financial liabilities $ 7,705,070 7,748,315 5,038,520 4,276 2,705,519 Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The methods and assumptions detailed above were used in estimating the fair value of financial instruments at both September 30, 2016 and December 31, 2015 . There were no transfers of financial instruments between Level 1 and Level 2 during the nine months ended September 30, 2016 . The following table represents assets and liabilities measured at fair value on a recurring basis at September 30, 2016 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Equity securities $ 3,892 — — 3,892 Debt securities: U.S. government and agencies — 7 — 7 Government sponsored enterprises — 313,203 — 313,203 States and political subdivisions — 71,061 — 71,061 Corporate — 8,161 9,229 17,390 Total debt securities — 392,432 9,229 401,661 Residential mortgage-backed securities: GNMA — 32,372 — 32,372 FNMA — 114,942 — 114,942 FHLMC — 87,729 — 87,729 Non-agency — 586 — 586 Collateralized mortgage obligations: GNMA — 7,275 — 7,275 FNMA — 102,781 — 102,781 FHLMC — 130,362 — 130,362 SBA — 7,034 — 7,034 Non-agency — 2,054 — 2,054 Total mortgage-backed securities — 485,135 — 485,135 Interest rate swaps — (3,512 ) — (3,512 ) Total assets and liabilities $ 3,892 874,055 9,229 887,176 The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2015 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Equity securities $ 1,894 — — 1,894 Debt securities: U.S. government and agencies — 11 — 11 Government sponsored enterprises — 294,440 — 294,440 States and political subdivisions — 82,868 — 82,868 Corporate — 7,520 8,955 16,475 Total debt securities — 384,839 8,955 393,794 Residential mortgage-backed securities: GNMA — 27,082 — 27,082 FNMA — 99,170 — 99,170 FHLMC — 50,369 — 50,369 Non-agency — 606 — 606 Collateralized mortgage obligations: GNMA — 10,669 — 10,669 FNMA — 122,528 — 122,528 FHLMC — 157,378 — 157,378 SBA — 8,166 — 8,166 Non-agency — 2,749 — 2,749 Total mortgage-backed securities — 478,717 — 478,717 Interest rate swaps — (4,276 ) — (4,276 ) Total assets and liabilities $ 1,894 859,280 8,955 870,129 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 periods indicated (in thousands): Quarter ended Nine months ended September 30, September 30, September 30, September 30, Beginning balance $ 8,719 9,223 8,955 10,597 Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation): Included in net income as OTTI — — — — Included in other comprehensive income 510 (226 ) 274 (1,600 ) Purchases — — — — Sales — — — — Transfers in to Level 3 — — — — Transfers out of Level 3 — — — — Ending balance $ 9,229 8,997 9,229 8,997 Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans measured for impairment, mortgage servicing rights, and real estate owned. The following table represents the fair value measurement for nonrecurring assets at September 30, 2016 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans measured for impairment $ — — 48,517 48,517 Mortgage servicing rights $ — — 1,493 1,493 Real estate owned — — 4,841 4,841 Total assets $ — — 54,851 54,851 Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans measured for impairment and real estate owned. The following table represents the fair value measurement for nonrecurring assets at December 31, 2015 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans measured for impairment $ — — 48,181 48,181 Real estate owned — — 8,725 8,725 Total assets $ — — 56,906 56,906 Impaired loans — A loan is considered to be impaired as described in Note 1 of the Notes to Consolidated Financial Statements in Item 8 of Part II of our 2015 Annual Report on Form 10-K. We classify loans individually evaluated for impairment that require a specific reserve as nonrecurring Level 3. Mortgage servicing rights - Mortgage servicing rights represent the value of servicing residential mortgage loans, when the mortgage loans have been sold into the secondary market and the associated servicing has been retained. The value is determined through a discounted cash flow analysis, which uses interest rates, prepayment speeds and delinquency rate assumptions as inputs. All of these assumptions require a significant degree of management judgment. Servicing rights and the related mortgage loans are segregated into categories or homogeneous pools based upon common characteristics. Adjustments are only made when the estimated discounted future cash flows are less than the carrying value, as determined by individual pool. As such, mortgage servicing rights are classified as nonrecurring Level 3. Real Estate Owned — Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by delinquent 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 all real estate owned as nonrecurring Level 3. The 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 September 30, 2016 (dollar amounts in thousands): Fair value Valuation techniques Significant unobservable inputs Range (weighted average) Debt securities $ 9,229 Discounted cash Discount margin 0.4% to 2.1% (0.7%) flow Default rates 1.0% Prepayment speeds 1.0 annually Loans measured for impairment 48,517 Appraisal value (1) Estimated cost to sell 10.0% Discounted cash flow Discount rate 3.8% to 20.0% (11.0%) Mortgage servicing rights 1,493 Discounted cash Annual service cost $80 flow Prepayment rates 7.1% to 11.5% (11.3%) Expected life (months) 63.5 to 78.3 (77.6) Option adjusted spread 800 basis points Forward yield curve 0.5% to 1.4% (1.1%) Real estate owned 4,841 Appraisal value (1) Estimated cost to sell 10.0% (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.

Guaranteed Preferred Beneficial

Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps	9 Months Ended
	Sep. 30, 2016
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 the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps	Guaranteed Preferred Beneficial Interests in the Company’s Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps We have two legacy statutory business trusts: Northwest Bancorp Capital Trust III, a Delaware statutory business trust and Northwest Bancorp Statutory Trust IV, a Connecticut statutory business trust (“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 the trust securities in an equivalent amount of debentures of the Company, and engage in other activities that are incidental to those previously listed. Northwest Bancorp Capital Trust III (Trust III) issued 50,000 cumulative trust preferred securities in a private transaction to a pooled investment vehicle on December 5, 2006 (liquidation value of $1,000 per preferred security or $50,000,000 ) with a stated maturity of December 30, 2035. These securities carry a floating interest rate, which is reset quarterly, equal to three-month LIBOR plus 1.38% . Northwest Bancorp Statutory Trust IV (Trust IV) issued 50,000 cumulative trust preferred securities in a private transaction to a pooled investment vehicle on December 15, 2006 (liquidation value of $1,000 per preferred security or $50,000,000 ) with a stated maturity of December 15, 2035. These securities carry a floating interest rate, which is reset quarterly, equal to three-month LIBOR plus 1.38% . 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. Trust III holds $51,547,000 of the Company’s junior subordinated debentures and Trust IV holds $51,547,000 of the Company’s junior subordinated debentures. These subordinated debentures are the sole assets of the Trusts. 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 preferred securities are also deferred. Interest on the subordinated debentures and distributions on the trust securities is cumulative. To date, there have been no interest deferrals. Our obligation constitutes a full, irrevocable, and unconditional guarantee on a subordinated basis of the obligations of the trust under the preferred securities. As a result of the LNB acquisition we acquired two statutory business trusts: LNB Trust I and LNB Trust II; both are Delaware statutory business trusts. The outstanding stock issued by LNB Trust I was redeemed on December 15, 2015. At September 30, 2016 , LNB Trust II had 7,875 cumulative trust preferred securities outstanding (liquidation value of $1,000 per preferred security or $7,875,000 ) with a stated maturity of June 15, 2037. These securities carry a fixed interest rate of 6.64% through June 15, 2017, then becomes a floating interest rate, which is reset quarterly, equal to three-month LIBOR plus 1.48% . LNB Trust II invested the proceeds of the offerings in junior subordinated deferrable interest debentures acquired by the Company. The structure of these debentures mirrors the structure of the trust-preferred securities. LNB Trust II holds $8,119,000 of junior subordinated debentures. The subordinated debentures are the sole assets of the Trusts. 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 are currently a counterparty to two interest rate swap agreements (swaps), designating the swaps as cash flow hedges. The swaps are intended to protect against the variability of cash flows associated with Trust III and Trust IV. The first swap modifies the re-pricing characteristics of Trust III, wherein for a ten year period expiring in September 2018, the Company receives interest of three-month LIBOR from a counterparty and pays a fixed rate of 4.61% to the same counterparty calculated on a notional amount of $ 25.0 million . The other swap modifies the re-pricing characteristics of Trust IV, wherein for a ten year period expiring in December 2018, the Company receives interest of three-month LIBOR from a counterparty and pays a fixed rate of 4.09% to the same counterparty calculated on a notional amount of $25.0 million . 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 September 30, 2016 , $ 4.2 million of cash was pledged as collateral to the counterparty. At September 30, 2016 , the fair value of the swap agreements was $(3.5) million and was the amount we would have expected to pay if the contracts were terminated. There was no material hedge ineffectiveness for these swaps. The following table shows liability derivatives, included in other liabilities, at September 30, 2016 and December 31, 2015 (in thousands): September 30, December 31, Fair value $ 3,512 4,276 Notional amount 50,000 50,000 Collateral posted 4,205 4,705

Legal Proceedings

Legal Proceedings	9 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings	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 September 30, 2016 we have not accrued for any legal proceedings based on our analysis of currently available information which 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.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income/ (Loss)	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income/ (Loss)	Changes in Accumulated Other Comprehensive Income/ (Loss) The following table shows the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): For the quarter ended September 30, 2016 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of June 30, 2016 $ 7,866 (2,753 ) (24,630 ) (19,517 ) Other comprehensive income before reclassification adjustments (785 ) 471 — (314 ) Amounts reclassified from accumulated other comprehensive income (1), (2) (36 ) — 224 188 Net other comprehensive income (821 ) 471 224 (126 ) Balance as of September 30, 2016 $ 7,045 (2,282 ) (24,406 ) (19,643 ) For the quarter ended September 30, 2015 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of June 30, 2015 $ 4,278 (3,546 ) (23,315 ) (22,583 ) Other comprehensive income before reclassification adjustments 2,379 45 — 2,424 Amounts reclassified from accumulated other comprehensive income (3), (4) (120 ) — 219 99 Net other comprehensive income/ (loss) 2,259 45 219 2,523 Balance as of September 30, 2015 $ 6,537 (3,501 ) (23,096 ) (20,060 ) (1) Consists of realized loss on securities (gain on sales of investments, net) of $59 , net of tax (income tax expense) of $(23) . (2) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net loss (compensation and employee benefits) of $(949) , net of tax (income tax expense) of $144 . See note 8. (3) Consists of realized gains on securities (gain on sales of investments, net) of $197 , net of tax (income tax expense) of $(77) . (4) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net loss (compensation and employee benefits) of $(940) , net of tax (income tax expense) of $140 . See note 8. The following table shows the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): For the nine months ended September 30, 2016 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2015 $ 3,325 (2,779 ) (25,081 ) (24,535 ) Other comprehensive income before reclassification adjustments 3,717 497 — 4,214 Amounts reclassified from accumulated other comprehensive income (1), (2) 3 — 675 678 Net other comprehensive income 3,720 497 675 4,892 Balance as of September 30, 2016 $ 7,045 (2,282 ) (24,406 ) (19,643 ) For the nine months ended September 30, 2015 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2014 $ 3,461 (4,078 ) (23,753 ) (24,370 ) Other comprehensive income before reclassification adjustments 3,543 577 — 4,120 Amounts reclassified from accumulated other comprehensive income (3), (4) (467 ) — 657 190 Net other comprehensive income 3,076 577 657 4,310 Balance as of September 30, 2015 $ 6,537 (3,501 ) (23,096 ) (20,060 ) (1) Consists of realized gains on securities (loss on sales of investments, net) of $(4) , net of tax (income tax expense) of $1 . (2) Consists of amortization of prior service cost (compensation and employee benefits) of $1,742 and amortization of net loss (compensation and employee benefits) of $(2,849) , net of tax (income tax expense) of $432 . See note 8. (3) Consists of realized gains on securities (gain on sales of investments, net) of $766 , net of tax (income tax expense) of $(299) . (4) Consists of amortization of prior service cost (compensation and employee benefits) of $1,743 and amortization of net loss (compensation and employee benefits) of $(2,820) , net of tax (income tax expense) of $420 . See note 8.

Basis of Presentation and Inf24

Basis of Presentation and Informational Disclosures (Policies)	9 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Income Taxes - Uncertain Tax Positions	Income Taxes- Uncertain Tax Positions Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return. A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits. The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At September 30, 2016 we had no liability for unrecognized tax benefits. We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income. We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2015 , 2014 , and 2013 .
Impact of New Accounting Standards	Impact of New Accounting Standards In May 2014 the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-9, “Revenue from Contracts with Customers (Topic 606)”. This guidance supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The core principle of this guidance requires an entity to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and provides five steps to be analyzed to accomplish the core principle. This guidance is effective retrospectively for annual reporting periods beginning after December 15, 2017, including interim periods within those years and early adoption is not permitted. We are currently evaluating the impact this standard will have on our results of operations and financial position. In January 2016 the FASB issued ASU 2016-01, “Financial Instruments-Overall (Subtopic 825-10)” . This guidance requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. Additionally, this guidance requires entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes and eliminates the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. We are currently evaluating the impact this standard will have on our results of operations and financial position. In February 2016 the FASB issued ASU 2016-2, “Leases” . This guidance requires a lessee to recognize in the statement of financial condition a liability to make lease payments and a right-of-use asset representing the right to use the underlying asset for the term of the lease. Optional periods should only be recognized if the lessee is reasonably certain to exercise the option. For leases with a term of twelve months or less, the lessee is permitted not to recognize lease assets and lease liabilities and should recognize lease expense for such leases generally on a straight-line basis over the term of the lease. This guidance is effective for annual periods beginning after December 15, 2018, including interim periods within those years and early adoption is permitted. We are currently evaluating the impact this standard will have on our results of operations and financial position. In March 2016 the FASB issued ASU 2016-08, “Principal Versus Agent Considerations” . This guidance clarifies the implementation guidance on principal versus agent considerations of ASU 2014-09 "Revenue from Contracts with Customers (Topic 606)" . When another party is involved in providing goods or services to a customer, an entity is required to determine whether the nature of its promise is to provide the specified good or service itself (that is, the entity is a principal) or to arrange for that good or service to be provided by the other party (that is, the entity is an agent). When (or as) an entity that is a principal satisfies a performance obligation, the entity recognizes revenue in the gross amount of consideration to which it expects to be entitled in exchange for the specified good or service transferred to the customer. When (or as) an entity that is an agent satisfies a performance obligation, the entity recognizes revenue in the amount of any fee or commission to which it expects to be entitled in exchange for arranging for the specified good or service to be provided by the other party. This guidance is effective retrospectively for annual reporting periods beginning after December 15, 2017, including interim periods within those years and early adoption is not permitted. We are currently evaluating the impact this standard will have on our results of operations and financial position. In March 2016 the FASB issued ASU 2016-09, “Improvements to Employee Share-based Payment Accounting” . This guidance is part of the FASB's Simplification Initiative and simplifies the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016, including interim periods within those years 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 June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326)-Measurement of Credit Losses on Financial Instruments , which eliminates the probable initial recognition threshold for credit losses requiring, instead, that all financial assets (or group of financial assets) measured at amortized cost be presented at the net amount expected to be collected inclusive of the entity’s current estimate of all lifetime expected credit losses. This guidance also applies to certain off-balance-sheet credit exposures such as unfunded commitments and non-derivative financial guarantees. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) in order to present the net carrying value at the amount expected to be collected on the financial asset. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The income statement under this guidance will reflect the initial recognition of current expected credit losses for newly recognized assets, as well as any increases or decreases of expected credit losses that have occurred during the period. This guidance retains many currently-existing disclosures related to the credit quality of an entity’s assets and the related allowance for credit losses amended to reflect the change to an expected credit loss methodology, as well as enhanced disclosures to provide information to users at a more disaggregated level. Upon adoption, ASU 2016-13 provides for a modified retrospective transition by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is effective, except for debt securities for which an other-than-temporary impairment has previously been recognized. For these debt securities, a prospective transition is provided in order to maintain the same amortized cost prior to and subsequent to the effective date of the ASU. This guidance is effective for annual reporting periods beginning after December 15, 2019, and interim periods within those annual periods with early adoption permitted for fiscal years beginning after December 15, 2018, and interim periods within those annual periods. We are currently evaluating the impact this standard will have on our results of operations and financial position.

Acquisition (Tables)

Acquisition (Tables)	9 Months Ended
	Sep. 30, 2016
Business Combinations [Abstract]
Schedule of assets acquired and the liabilities assumed recorded at fair value on acquisition date	The following table shows the assets acquired, and the liabilities assumed that were recorded at fair value on the date of acquisition (in thousands): Recognized amounts of identifiable assets acquired and (liabilities assumed), at fair value (1) Cash and cash equivalents (2) $ 1,119,084 Loans 455,857 Core deposit intangible 25,732 Wealth Management intangible 1,143 Other assets 16,684 Total assets acquired 1,618,500 Deposits (1,642,846 ) Other liabilities (21,224 ) Total liabilities assumed (1,664,070 ) Goodwill $ 45,570 (1) Preliminary estimates of fair value have been recorded. (2) Amount is net of $ 76.6 million deposit premium paid to FNFG.

Business Segments (Tables)

Business Segments (Tables)	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Schedule of financial information for reportable segments	The following tables provide financial information for these reportable segments. The “All Other” column represents the parent company and elimination entries necessary to reconcile to the consolidated amounts presented in the financial statements. At or for the quarter ended (in thousands): Community Consumer September 30, 2016 Banking Finance All other (1) Consolidated External interest income $ 81,597 4,264 239 86,100 Intersegment interest income/ expense 645 — (645 ) — Interest expense 6,338 645 471 7,454 Provision for loan losses 4,276 1,262 — 5,538 Noninterest income 20,424 372 22 20,818 Noninterest expense 71,932 2,908 192 75,032 Income tax expense (benefit) 5,147 (74 ) (376 ) 4,697 Net income $ 14,973 (105 ) (671 ) 14,197 Total assets $ 9,590,487 109,601 14,519 9,714,607 Community Consumer September 30, 2015 Banking Finance All other (1) Consolidated External interest income $ 76,357 4,517 217 81,091 Intersegment interest income/ expense 618 — (618 ) — Interest expense 12,991 618 541 14,150 Provision for loan losses 2,666 501 — 3,167 Noninterest income 17,756 362 22 18,140 Noninterest expense 59,793 3,151 860 63,804 Income tax expense (benefit) 5,617 250 (629 ) 5,238 Net income $ 13,664 359 (1,151 ) 12,872 Total assets $ 8,805,421 111,109 18,378 8,934,908 (1) Eliminations consist of intercompany loans, interest income and interest expense. At or for the nine months ended (in thousands): Community Consumer September 30, 2016 Banking Finance All other (1) Consolidated External interest income $ 244,572 12,831 689 258,092 Intersegment interest income 1,918 — (1,918 ) — Interest expense 27,943 1,918 1,347 31,208 Provision for loan losses 8,854 2,543 — 11,397 Noninterest income 59,278 1,152 111 60,541 Noninterest expense 231,983 8,715 870 241,568 Income tax expense (benefit) 10,144 335 (1,192 ) 9,287 Net income $ 26,844 472 (2,143 ) 25,173 Total assets $ 9,590,487 109,601 14,519 9,714,607 Community Consumer September 30, 2015 Banking Finance All other (1) Consolidated External interest income $ 219,961 13,339 641 233,941 Intersegment interest income 1,775 — (1,775 ) — Interest expense 38,660 1,775 1,406 41,841 Provision for loan losses 3,766 1,351 — 5,117 Noninterest income 48,162 1,043 85 49,290 Noninterest expense 161,915 9,185 1,550 172,650 Income tax expense (benefit) 19,835 859 (1,418 ) 19,276 Net income $ 45,722 1,212 (2,587 ) 44,347 Total assets $ 8,805,421 111,109 18,378 8,934,908 (1) Eliminations consist of intercompany loans, interest income and interest expense.

Investment securities and imp27

Investment securities and impairment of investment securities (Tables)	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of the portfolio of investment securities available-for-sale	The following table shows the portfolio of investment securities available-for-sale at September 30, 2016 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by the U.S. government and agencies: Due in one year or less $ 7 — — 7 Debt issued by government sponsored enterprises: Due in one year or less 59,980 74 — 60,054 Due after one year through five years 252,073 579 (128 ) 252,524 Due after five years through ten years 625 — — 625 Equity securities 3,351 547 (6 ) 3,892 Municipal securities: Due in one year or less 2,201 9 — 2,210 Due after one year through five years 11,343 191 (2 ) 11,532 Due after five years through ten years 10,272 315 — 10,587 Due after ten years 45,137 1,595 — 46,732 Corporate debt issues: Due after ten years 14,445 3,294 (349 ) 17,390 Residential mortgage-backed securities: Fixed rate pass-through 184,225 3,312 (84 ) 187,453 Variable rate pass-through 46,067 2,114 (5 ) 48,176 Fixed rate non-agency CMOs 1,810 244 — 2,054 Fixed rate agency CMOs 177,317 681 (1,005 ) 176,993 Variable rate agency CMOs 70,288 318 (147 ) 70,459 Total residential mortgage-backed securities 479,707 6,669 (1,241 ) 485,135 Total marketable securities available-for-sale $ 879,141 13,273 (1,726 ) 890,688 The following table shows the portfolio of investment securities available-for-sale at December 31, 2015 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by the U.S. government and agencies: Due in one year or less $ 11 — — 11 Debt issued by government sponsored enterprises: Due in one year or less 15,500 3 (48 ) 15,455 Due after one year through five years 257,463 298 (1,395 ) 256,366 Due after five years through ten years 12,721 14 (23 ) 12,712 Due after ten years 9,815 135 (43 ) 9,907 Equity securities 1,400 500 (6 ) 1,894 Municipal securities: Due in one year or less 1,684 8 — 1,692 Due after one year through five years 14,327 117 (4 ) 14,440 Due after five years through ten years 12,400 323 — 12,723 Due after ten years 52,286 1,727 — 54,013 Corporate debt issues: Due after ten years 14,463 2,417 (405 ) 16,475 Residential mortgage-backed securities: Fixed rate pass-through 118,266 2,480 (420 ) 120,326 Variable rate pass-through 54,292 2,616 (7 ) 56,901 Fixed rate non-agency CMOs 2,519 230 — 2,749 Fixed rate agency CMOs 215,719 389 (3,881 ) 212,227 Variable rate agency CMOs 86,090 476 (52 ) 86,514 Total residential mortgage-backed securities 476,886 6,191 (4,360 ) 478,717 Total marketable securities available-for-sale $ 868,956 11,733 (6,284 ) 874,405
Schedule of the portfolio of investment securities held-to-maturity	The following table shows the portfolio of investment securities held-to-maturity at September 30, 2016 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Municipal securities: Due after five years through ten years $ 274 1 — 275 Due after ten years 4,807 107 — 4,914 Residential mortgage-backed securities: Fixed rate pass-through 5,276 315 — 5,591 Variable rate pass-through 3,019 69 — 3,088 Fixed rate agency CMOs 8,353 163 — 8,516 Variable rate agency CMOs 855 10 — 865 Total residential mortgage-backed securities 17,503 557 — 18,060 Total marketable securities held-to-maturity $ 22,584 665 — 23,249 The following table shows the portfolio of investment securities held-to-maturity at December 31, 2015 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Municipal securities: Due after five years through ten years $ 274 1 — 275 Due after ten years 6,336 239 — 6,575 Residential mortgage-backed securities: Fixed rate pass-through 6,458 351 — 6,809 Variable rate pass-through 3,618 41 — 3,659 Fixed rate agency CMOs 14,033 219 — 14,252 Variable rate agency CMOs 970 12 — 982 Total residential mortgage-backed securities 25,079 623 — 25,702 Total marketable securities held-to-maturity $ 31,689 863 — 32,552
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 of 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 September 30, 2016 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ 145,648 (106 ) 10,376 (22 ) 156,024 (128 ) Municipal securities 2,334 (2 ) 66 — 2,400 (2 ) Corporate issues — — 2,079 (349 ) 2,079 (349 ) Equity securities — — 545 (6 ) 545 (6 ) Residential mortgage-backed securities - agency 101,252 (198 ) 84,101 (1,043 ) 185,353 (1,241 ) Total temporarily impaired securities $ 249,234 (306 ) 97,167 (1,420 ) 346,401 (1,726 ) The following table shows the fair value of 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, 2015 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ 143,751 (723 ) 92,961 (786 ) 236,712 (1,509 ) Municipal securities 7,505 (4 ) — — 7,505 (4 ) Corporate debt issues — — 2,021 (405 ) 2,021 (405 ) Equity securities 544 (6 ) — — 544 (6 ) Residential mortgage-backed securities - agency 122,109 (598 ) 149,889 (3,762 ) 271,998 (4,360 ) Total temporarily impaired securities $ 273,909 (1,331 ) 244,871 (4,953 ) 518,780 (6,284 )
Schedule of the cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold	The table below shows a cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold for the quarter and nine months ended (in thousands): 2016 2015 Beginning balance at July 1, (1) $ 8,408 8,489 Credit losses on debt securities for which other-than-temporary impairment was not previously recognized — — Reduction for losses realized during the quarter (16 ) (30 ) Reduction for securities sold/ called realized during the quarter — — Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized — — Ending balance at September 30, $ 8,392 $ 8,459 (1) The beginning balance represents credit losses included in other-than-temporary impairment charges recognized on debt securities in prior periods. 2016 2015 Beginning balance at January 1, (1) $ 8,436 8,894 Credit losses on debt securities for which other-than-temporary impairment was not previously recognized — — Reduction for losses realized during the nine months (44 ) (75 ) Reduction for securities sold/ called realized during the nine months — (360 ) Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized — — Ending balance at September 30, $ 8,392 8,459 (1) The beginning balance represents credit losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

Loans receivable (Tables)

Loans receivable (Tables)	9 Months Ended
	Sep. 30, 2016
Receivables [Abstract]
Summary of loans receivable	The following table shows a summary of our loans receivable at September 30, 2016 and December 31, 2015 (in thousands): September 30, 2016 December 31, 2015 Originated Acquired Total Originated Acquired Total Personal Banking: Residential mortgage loans (1) $ 2,678,757 142,360 2,821,117 2,695,561 45,716 2,741,277 Home equity loans 1,028,982 320,123 1,349,105 1,055,907 131,199 1,187,106 Consumer loans 436,847 180,488 617,335 313,220 197,397 510,617 Total Personal Banking 4,144,586 642,971 4,787,557 4,064,688 374,312 4,439,000 Commercial Banking: Commercial real estate loans 2,213,678 422,669 2,636,347 2,094,710 429,564 2,524,274 Commercial loans 486,353 83,433 569,786 372,540 65,175 437,715 Total Commercial Banking 2,700,031 506,102 3,206,133 2,467,250 494,739 2,961,989 Total loans receivable, gross 6,844,617 1,149,073 7,993,690 6,531,938 869,051 7,400,989 Deferred loan costs 18,819 3,510 22,329 14,806 5,259 20,065 Allowance for loan losses (58,024 ) (5,222 ) (63,246 ) (60,970 ) (1,702 ) (62,672 ) Undisbursed loan proceeds: Residential mortgage loans (13,256 ) — (13,256 ) (10,778 ) — (10,778 ) Commercial real estate loans (167,915 ) (3,751 ) (171,666 ) (159,553 ) (13,287 ) (172,840 ) Commercial loans (30,240 ) (2,291 ) (32,531 ) (11,132 ) (4,183 ) (15,315 ) Total loans receivable, net $ 6,594,001 1,141,319 7,735,320 6,304,311 855,138 7,159,449 (1) Includes $30.4 million of loans held for sale at September 30, 2016 .
Schedule of information related to the outstanding principal balance and related carrying value of acquired loans	Acquired loans were initially measured at fair value and subsequently accounted for under either Accounting Standards Codification (“ASC”) Topic 310-30 or ASC Topic 310-20. The following table provides information related to the outstanding principal balance and related carrying value of acquired loans for the dates indicated (in thousands): September 30, December 31, Acquired loans evaluated individually for future credit losses: Outstanding principal balance $ 17,212 $ 21,069 Carrying value 13,641 16,867 Acquired loans evaluated collectively for future credit losses: Outstanding principal balance 1,141,343 848,194 Carrying value 1,132,900 839,973 Total acquired loans: Outstanding principal balance 1,158,555 869,263 Carrying value 1,146,541 856,840
Schedule of the changes in the accretable discount	The following table provides information related to the changes in the accretable discount, which includes income recognized from contractual cash flows for the dates indicated (in thousands): Total Balance at December 31, 2014 $ — LNB Bancorp, Inc. acquisition 1,672 Accretion (377 ) Net reclassification from nonaccretable yield 724 Balance at December 31, 2015 2,019 Accretion (851 ) Net reclassification from nonaccretable yield 1,080 Balance at September 30, 2016 $ 2,248
Schedule of the composition of impaired loans by portfolio segment and by class of financing receivable	The following table provides information related to acquired impaired loans by portfolio segment and by class of financing receivable at and for the nine months ended September 30, 2016 (in thousands): Carrying value Outstanding principal balance Related impairment reserve Average recorded investment in impaired loans Interest income recognized Personal Banking: Residential mortgage loans $ 1,381 2,153 184 1,681 154 Home equity loans 1,407 2,739 8 1,746 150 Consumer loans 169 353 3 218 32 Total Personal Banking 2,957 5,245 195 3,645 336 Commercial Banking: Commercial real estate loans 10,434 11,703 62 11,361 507 Commercial loans 250 264 — 248 8 Total Commercial Banking 10,684 11,967 62 11,609 515 Total $ 13,641 17,212 257 15,254 851 The following table provides information related to acquired impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2015 (in thousands): Carrying Outstanding Related Average Interest Personal Banking: Residential mortgage loans $ 1,981 2,910 14 2,083 41 Home equity loans 2,084 3,455 6 2,222 51 Consumer loans 267 492 2 305 18 Total Personal Banking 4,332 6,857 22 4,610 110 Commercial Banking: Commercial real estate loans 12,288 13,946 353 12,867 249 Commercial loans 247 266 — 335 18 Total Commercial Banking 12,535 14,212 353 13,202 267 Total $ 16,867 21,069 375 17,812 377 The following table provides information related to the composition of originated impaired loans by portfolio segment and by class of financing receivable at and for the nine months ended September 30, 2016 (in thousands): Nonaccrual loans 90 or more days delinquent Nonaccrual loans less than 90 days delinquent Loans less than 90 days delinquent reviewed for impairment TDRs less than 90 days delinquent not included elsewhere Total impaired loans Average recorded investment in impaired loans Interest income recognized on impaired loans Personal Banking: Residential mortgage loans $ 13,242 4,677 — 6,330 24,249 24,401 819 Home equity loans 5,874 2,226 — 1,476 9,576 9,155 368 Consumer loans 3,354 925 — — 4,279 3,322 116 Total Personal Banking 22,470 7,828 — 7,806 38,104 36,878 1,303 Commercial Banking: Commercial real estate loans 22,155 19,911 4,838 10,929 57,833 67,422 2,258 Commercial loans 6,105 7,803 2,893 3,634 20,435 17,158 733 Total Commercial Banking 28,260 27,714 7,731 14,563 78,268 84,580 2,991 Total $ 50,730 35,542 7,731 22,369 116,372 121,458 4,294 The following table provides information related to the composition of originated impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2015 (in thousands): Nonaccrual loans 90 or more days delinquent Nonaccrual loans less than 90 days delinquent Loans less than 90 days delinquent reviewed for impairment TDRs less than 90 days delinquent not included elsewhere Total impaired loans Average recorded investment in impaired loans Interest income recognized on impaired loans Personal Banking: Residential mortgage loans $ 15,810 3,962 — 5,086 24,858 24,554 944 Home equity loans 5,650 1,872 — 1,847 9,369 9,644 497 Consumer loans 2,900 552 — — 3,452 2,977 101 Total Personal Banking 24,360 6,386 — 6,933 37,679 37,175 1,542 Commercial Banking: Commercial real estate loans 16,449 16,972 16,121 16,467 66,009 77,166 3,226 Commercial loans 2,459 5,036 2,014 4,654 14,163 16,187 694 Total Commercial Banking 18,908 22,008 18,135 21,121 80,172 93,353 3,920 Total $ 43,268 28,394 18,135 28,054 117,851 130,528 5,462
Schedule of the changes in the allowance for losses on loans receivable	The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the quarter ended September 30, 2016 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Originated loans: Personal Banking: Residential mortgage loans $ 4,002 1,109 (268 ) 139 3,022 Home equity loans 3,519 296 (161 ) 49 3,335 Consumer loans 9,096 3,345 (2,535 ) 362 7,924 Total Personal Banking 16,617 4,750 (2,964 ) 550 14,281 Commercial Banking: Commercial real estate loans 24,530 (1,041 ) (602 ) 487 25,686 Commercial loans 16,877 1,668 (708 ) 561 15,356 Total Commercial Banking 41,407 627 (1,310 ) 1,048 41,042 Total originated loans 58,024 5,377 (4,274 ) 1,598 55,323 Acquired loans: Personal Banking: Residential mortgage loans 78 45 (86 ) 58 61 Home equity loans 1,171 138 (127 ) 32 1,128 Consumer loans 644 212 (166 ) 46 552 Total Personal Banking 1,893 395 (379 ) 136 1,741 Commercial Banking: Commercial real estate loans 2,422 (588 ) (187 ) 32 3,165 Commercial loans 907 354 — 1 552 Total Commercial Banking 3,329 (234 ) (187 ) 33 3,717 Total acquired loans 5,222 161 (566 ) 169 5,458 Total $ 63,246 5,538 (4,840 ) 1,767 60,781 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the quarter ended September 30, 2015 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Personal Banking: Residential mortgage loans $ 4,587 (14 ) (342 ) 51 4,892 Home equity loans 3,371 274 (443 ) 95 3,445 Consumer loans 7,618 3,000 (2,014 ) 388 6,244 Total Personal Banking 15,576 3,260 (2,799 ) 534 14,581 Commercial Banking: Commercial real estate loans 30,829 111 (558 ) 1,113 30,163 Commercial loans 14,142 (204 ) (595 ) 628 14,313 Total Commercial Banking 44,971 (93 ) (1,153 ) 1,741 44,476 Total $ 60,547 3,167 (3,952 ) 2,275 59,057 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the nine months ended September 30, 2016 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Originated loans: Personal Banking: Residential mortgage loans $ 4,002 1,612 (2,559 ) 257 4,692 Home equity loans 3,519 253 (898 ) 223 3,941 Other consumer loans 9,096 7,368 (6,908 ) 1,148 7,488 Total Personal Banking 16,617 9,233 (10,365 ) 1,628 16,121 Commercial Banking: Commercial real estate loans 24,530 (8,756 ) (2,103 ) 3,041 32,348 Commercial loans 16,877 5,008 (1,704 ) 1,072 12,501 Total Commercial Banking 41,407 (3,748 ) (3,807 ) 4,113 44,849 Total originated loans 58,024 5,485 (14,172 ) 5,741 60,970 Acquired loans: Personal Banking: Residential mortgage loans 78 118 (211 ) 153 18 Home equity loans 1,171 2,093 (1,320 ) 297 101 Other consumer loans 644 925 (528 ) 137 110 Total Personal Banking 1,893 3,136 (2,059 ) 587 229 Commercial Banking: Commercial real estate loans 2,422 1,886 (1,314 ) 411 1,439 Commercial loans 907 890 (24 ) 7 34 Total Commercial Banking 3,329 2,776 (1,338 ) 418 1,473 Total acquired loans 5,222 5,912 (3,397 ) 1,005 1,702 Total $ 63,246 11,397 (17,569 ) 6,746 62,672 The following table provides information related to the allowance for loan losses by portfolio segment and by class of financing receivable for the nine months ended September 30, 2015 (in thousands): Balance Current period provision Charge-offs Recoveries Balance Personal Banking: Residential mortgage loans $ 4,587 (220 ) (955 ) 181 5,581 Home equity loans 3,371 (126 ) (1,327 ) 274 4,550 Other consumer loans 7,618 6,135 (5,713 ) 1,078 6,118 Total Personal Banking 15,576 5,789 (7,995 ) 1,533 16,249 Commercial Banking: Commercial real estate loans 30,829 (1,205 ) (5,110 ) 3,755 33,389 Commercial loans 14,142 4,898 (7,675 ) 3,404 13,515 Total Commercial Banking 44,971 3,693 (12,785 ) 7,159 46,904 Unallocated — (4,365 ) — — 4,365 Total $ 60,547 5,117 (20,780 ) 8,692 67,518
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 at September 30, 2016 (in thousands): Total loans receivable Allowance for loan losses Nonaccrual loans (1) Loans past due 90 days or more and still accruing (2) TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,819,013 4,080 17,919 — 7,174 735 — Home equity loans 1,349,105 4,690 8,100 — 1,962 471 3 Consumer loans 628,512 9,740 4,279 95 — — — Total Personal Banking 4,796,630 18,510 30,298 95 9,136 1,206 3 Commercial Banking: Commercial real estate loans 2,464,681 26,952 42,066 — 26,435 2,038 280 Commercial loans 537,255 17,784 13,908 8 11,024 1,453 17 Total Commercial Banking 3,001,936 44,736 55,974 8 37,459 3,491 297 Total $ 7,798,566 63,246 86,272 103 46,595 4,697 300 (1) Includes $17.4 million of nonaccrual TDRs. (2) Represents loans 90 days past maturity and still accruing. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2015 (in thousands): Total loans receivable Allowance for loan losses Nonaccrual loans (1) Loans past due 90 days or more and still accruing (2) TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,740,892 4,710 19,772 4 6,360 1,189 — Home equity loans 1,187,106 4,042 7,522 — 2,298 605 — Consumer loans 520,289 7,598 3,452 976 — — — Total Personal Banking 4,448,287 16,350 30,746 980 8,658 1,794 — Commercial Banking: Commercial real estate loans 2,351,434 33,787 33,421 206 31,970 2,257 241 Commercial loans 422,400 12,535 7,495 148 10,487 631 79 Total Commercial Banking 2,773,834 46,322 40,916 354 42,457 2,888 320 Total $ 7,222,121 62,672 71,662 1,334 51,115 4,682 320 (1) Includes $21.1 million of nonaccrual TDRs. (2) Represents loans 90 days past maturity and still accruing.
Schedule of geographical information related to the loan portfolio	The following table provides geographical information related to the loan portfolio by portfolio segment and class of financing receivable at September 30, 2016 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans receivable: Personal Banking: Residential mortgage loans $ 2,285,555 286,147 70,507 121,013 55,791 2,819,013 Home equity loans 858,767 284,095 146,040 22,713 37,490 1,349,105 Consumer loans 268,458 71,558 117,944 1,996 168,556 628,512 Total Personal Banking 3,412,780 641,800 334,491 145,722 261,837 4,796,630 Commercial Banking: Commercial real estate loans 967,962 875,066 464,068 113,605 43,980 2,464,681 Commercial loans 365,924 95,997 55,758 7,034 12,542 537,255 Total Commercial Banking 1,333,886 971,063 519,826 120,639 56,522 3,001,936 Total $ 4,746,666 1,612,863 854,317 266,361 318,359 7,798,566 Percentage of total loans receivable 60.9 % 20.6 % 11.0 % 3.4 % 4.1 % 100.0 % The following table provides delinquency information related to the loan portfolio by portfolio segment and class of financing receivable at September 30, 2016 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans 90 or more days delinquent: (1) Personal Banking: Residential mortgage loans $ 9,380 1,627 831 1,229 411 13,478 Home equity loans 3,064 1,039 1,405 469 45 6,022 Consumer loans 2,951 122 58 — 241 3,372 Total Personal Banking 15,395 2,788 2,294 1,698 697 22,872 Commercial Banking: Commercial real estate loans 7,209 2,697 8,261 110 6,256 24,533 Commercial loans 5,061 137 942 109 — 6,249 Total Commercial Banking 12,270 2,834 9,203 219 6,256 30,782 Total $ 27,665 5,622 11,497 1,917 6,953 53,654 Percentage of total loans 90 or more days delinquent 51.5 % 10.5 % 21.4 % 3.6 % 13.0 % 100.0 % (1) Includes $2.9 million of purchased credit impaired loans considered accruing. The following table provides geographical information related to the loan portfolio by portfolio segment and class of financing receivable at December 31, 2015 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans receivable: Personal Banking: Residential mortgage loans $ 2,310,860 171,790 70,209 129,129 58,904 2,740,892 Home equity loans 879,447 124,291 154,003 24,458 4,907 1,187,106 Consumer loans 260,170 12,244 102,034 1,870 143,971 520,289 Total Personal Banking 3,450,477 308,325 326,246 155,457 207,782 4,448,287 Commercial Banking: Commercial real estate loans 965,090 749,435 453,180 122,775 60,954 2,351,434 Commercial loans 284,611 53,420 68,327 5,662 10,380 422,400 Total Commercial Banking 1,249,701 802,855 521,507 128,437 71,334 2,773,834 Total $ 4,700,178 1,111,180 847,753 283,894 279,116 7,222,121 Percentage of total loans receivable 65.1 % 15.4 % 11.7 % 3.9 % 3.9 % 100.0 % The following table provides delinquency information related to the loan portfolio by portfolio segment and class of financing receivable at December 31, 2015 (in thousands): Pennsylvania New York Ohio Maryland Other Total Loans 90 or more days delinquent: (1) Personal Banking: Residential mortgage loans $ 10,998 1,801 1,308 1,341 902 16,350 Home equity loans 3,204 639 1,294 975 — 6,112 Consumer loans 2,780 90 24 — 32 2,926 Total Personal Banking 16,982 2,530 2,626 2,316 934 25,388 Commercial Banking: Commercial real estate loans 10,439 3,012 4,823 251 506 19,031 Commercial loans 1,582 859 158 — — 2,599 Total Commercial Banking 12,021 3,871 4,981 251 506 21,630 Total $ 29,003 6,401 7,607 2,567 1,440 47,018 Percentage of total loans 90 or more days delinquent 61.6 % 13.6 % 16.2 % 5.5 % 3.1 % 100.0 % (1) Includes $3.8 million of purchased credit impaired loans considered accruing.
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 at September 30, 2016 (in thousands): Loans collectively evaluated for impairment Loans individually evaluated for impairment Loans individually evaluated for impairment for which there is a related impairment reserve Related impairment reserve Loans individually evaluated for impairment for which there is no related reserve Personal Banking: Residential mortgage loans $ 2,810,996 8,017 8,017 735 — Home equity loans 1,347,143 1,962 1,962 471 — Consumer loans 628,438 74 74 17 — Total Personal Banking 4,786,577 10,053 10,053 1,223 — Commercial Banking: Commercial real estate loans 2,424,492 40,189 32,587 3,636 7,602 Commercial loans 525,006 12,249 12,249 1,513 — Total Commercial Banking 2,949,498 52,438 44,836 5,149 7,602 Total $ 7,736,075 62,491 54,889 6,372 7,602 The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable at December 31, 2015 (in thousands): Loans collectively evaluated for impairment Loans individually evaluated for impairment Loans individually evaluated for impairment for which there is a related impairment reserve Related impairment reserve Loans individually evaluated for impairment for which there is no related reserve Personal Banking: Residential mortgage loans $ 2,733,741 7,151 7,151 1,189 — Home equity loans 1,184,808 2,298 2,298 605 — Consumer loans 520,159 130 130 50 — Total Personal Banking 4,438,708 9,579 9,579 1,844 — Commercial Banking: Commercial real estate loans 2,297,599 53,835 35,937 2,675 17,898 Commercial loans 411,342 11,058 7,673 489 3,385 Total Commercial Banking 2,708,941 64,893 43,610 3,164 21,283 Total $ 7,147,649 74,472 53,189 5,008 21,283
Schedule of roll forward of troubled debt restructurings	The following table provides a roll forward of troubled debt restructurings for the periods indicated (in thousands): For the quarters ended September 30, 2016 2015 Number of contracts Amount Number of contracts Amount Beginning TDR balance: 230 $ 49,113 231 $ 56,184 New TDRs 5 245 5 2,273 Re-modified TDRs 1 799 1 6,316 Net paydowns (1,781 ) (7,096 ) Charge-offs: Residential mortgage loans — — — — Home equity loans — — 1 (60 ) Commercial real estate loans — — 1 (5 ) Commercial loans 1 (99 ) — — Paid-off loans: Residential mortgage loans 3 (143 ) — — Home equity loans 2 (264 ) 2 (75 ) Commercial real estate loans 8 (1,022 ) 6 (8,122 ) Commercial loans 3 (253 ) 2 (77 ) Ending TDR balance: 218 $ 46,595 224 $ 49,338 Accruing TDRs $ 29,221 $ 26,154 Non-accrual TDRs 17,374 23,184 The following table provides a roll forward of troubled debt restructurings for the periods indicated (in thousands): For the nine months ended September 30, 2016 2015 Number of contracts Number of contracts Beginning TDR balance: 227 $ 51,115 248 $ 61,788 New TDRs 23 5,256 11 2,772 Re-modified TDRs 5 1,862 3 6,446 Net paydowns (4,685 ) (11,537 ) Charge-offs: Residential mortgage loans — — — — Home equity loans — — 4 (159 ) Commercial real estate loans — — 3 (28 ) Commercial loans 2 (142 ) 2 (387 ) Paid-off loans: Residential mortgage loans 3 (143 ) 1 (53 ) Home equity loans 5 (496 ) 3 (81 ) Commercial real estate loans 16 (5,584 ) 14 (9,127 ) Commercial loans 6 (588 ) 8 (296 ) Ending TDR balance: 218 $ 46,595 224 $ 49,338 Accruing TDRs $ 29,221 $ 26,154 Non-accrual TDRs 17,374 23,184
Schedule of troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable	The following table provides information related to troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (dollars in thousands): For the quarter ended For the nine months ended September 30, 2016 Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Troubled debt restructurings: Personal Banking: Residential mortgage loans 1 $ 9 8 1 6 $ 1,041 1,031 105 Home equity loans 1 3 3 1 6 284 281 60 Consumer loans — — — — — — — — Total Personal Banking 2 12 11 2 12 1,325 1,312 165 Commercial Banking: Commercial real estate loans 1 154 153 11 5 2,250 2,218 295 Commercial loans 3 878 877 64 11 3,543 2,591 632 Total Commercial Banking 4 1,032 1,030 75 16 5,793 4,809 927 Total 6 $ 1,044 1,041 77 28 $ 7,118 6,121 1,092 Troubled debt restructurings modified within the previous twelve months that have subsequently defaulted: Personal Banking: Residential mortgage loans — $ — — — — $ — — — Home equity loans — — — — — — — — Consumer loans — — — — — — — — Total Personal Banking — — — — — — — — Commercial Banking Commercial real estate loans 1 6,256 6,113 893 — — — — Commercial loans — — — — — — — — Total Commercial Banking 1 6,256 6,113 893 — — — — Total 1 $ 6,256 6,113 893 — $ — — — The following table provides information related to troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (dollars in thousands): For the quarter ended For the nine months ended September 30, 2015 Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Troubled debt restructurings: Personal Banking: Residential mortgage loans — $ — — — 4 $ 232 228 — Home equity loans — — — — 2 87 85 17 Consumer loans — — — — — — — — Total Personal Banking — — — — 6 319 313 17 Commercial Banking: Commercial real estate loans 5 8,563 8,511 980 6 8,575 8,522 981 Commercial loans 1 26 25 3 2 324 313 31 Total Commercial Banking 6 8,589 8,536 983 8 8,899 8,835 1,012 Total 6 $ 8,589 8,536 983 14 $ 9,218 9,148 1,029 Troubled debt restructurings modified within the previous twelve months that have subsequently defaulted: Personal Banking: Residential mortgage loans — $ — — — 1 $ 251 249 — Home equity loans — — — — 1 23 20 — Consumer loans — — — — — — — — Total Personal Banking — — — — 2 274 269 — Commercial Banking: Commercial real estate loans — — — — — — — — Commercial loans — — — — — — — — Total Commercial Banking — — — — — — — — Total — $ — — — 2 $ 274 269 —
Schedule of troubled debt restructurings (including re-modified TDRs) by type of modification by portfolio segment and by class of financing receivable	The following table provides information as of September 30, 2016 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended September 30, 2016 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ — — 8 — 8 Home equity loans 1 — — 3 — 3 Consumer loans — — — — — — Total Personal Banking 2 — — 11 — 11 Commercial Banking: Commercial real estate loans 1 — — 153 — 153 Commercial loans 3 — 799 78 — 877 Total Commercial Banking 4 — 799 231 — 1,030 Total 6 $ — 799 242 — 1,041 The following table provides information as of September 30, 2015 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended September 30, 2015 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 5 180 — 8,331 — 8,511 Commercial loans 1 — — 25 — 25 Total Commercial Banking 6 180 — 8,356 — 8,536 Total 6 $ 180 — 8,356 — 8,536 The following table provides information as of September 30, 2016 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the nine months ended September 30, 2016 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 6 $ 361 — 622 48 1,031 Home equity loans 6 121 — 3 157 281 Other consumer loans — — — — — — Total Personal Banking 12 482 — 625 205 1,312 Commercial Banking: Commercial real estate loans 5 — 429 535 1,254 2,218 Commercial loans 11 — 799 1,042 750 2,591 Total Commercial Banking 16 — 1,228 1,577 2,004 4,809 Total 28 $ 482 1,228 2,202 2,209 6,121 The following table provides information as of September 30, 2015 for troubled debt restructurings (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the nine months ended September 30, 2015 (dollars in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 4 $ 73 — 110 45 228 Home equity loans 2 83 — 2 — 85 Other consumer loans — — — — — — Total Personal Banking 6 156 — 112 45 313 Commercial Banking: Commercial real estate loans 6 180 — 8,342 — 8,522 Commercial loans 2 — — 313 — 313 Total Commercial Banking 8 180 — 8,655 — 8,835 Total 14 $ 336 — 8,767 45 9,148
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 quarter ended September 30, 2016 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans — — — — — — Commercial loans 1 — 799 — — 799 Total Commercial Banking 1 — 799 — — 799 Total 1 $ — 799 — — 799 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the quarter ended September 30, 2015 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 1 — — 6,270 — 6,270 Commercial loans — — — — — — Total Commercial Banking 1 — — 6,270 — 6,270 Total 1 $ — — 6,270 — 6,270 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the nine months ended September 30, 2016 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Other consumer loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 1 — — — 182 182 Commercial loans 4 — 1,662 — — 1,662 Total Commercial Banking 5 — 1,662 — 182 1,844 Total 5 $ — 1,662 — 182 1,844 The following table provides information related to re-modified troubled debt restructurings by portfolio segment and by class of financing receivable for the nine months ended September 30, 2015 (dollars in thousands): Number of Type of re-modification re-modified TDRs Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ — — — 45 45 Home equity loans 1 83 — — — 83 Other consumer loans — — — — — — Total Personal Banking 2 83 — — 45 128 Commercial Banking: Commercial real estate loans 1 — — 6,270 — 6,270 Commercial loans — — — — — — Total Commercial Banking 1 — — 6,270 — 6,270 Total 3 $ 83 — 6,270 45 6,398
Schedule of loan delinquencies	The following table provides information related to loan payment delinquencies at September 30, 2016 (in thousands): 30-59 Days delinquent 60-89 Days delinquent 90 Days or greater delinquent Total delinquency Current Total loans receivable 90 Days or greater delinquent and accruing (1) Originated loans: Personal Banking: Residential mortgage loans $ 3,322 5,568 12,855 21,745 2,654,908 2,676,653 — Home equity loans 4,130 910 4,817 9,857 1,019,125 1,028,982 — Consumer loans 6,565 2,368 3,163 12,096 432,418 444,514 — Total Personal Banking 14,017 8,846 20,835 43,698 4,106,451 4,150,149 — Commercial Banking: Commercial real estate loans 3,432 487 16,698 20,617 2,025,146 2,045,763 — Commercial loans 1,270 443 5,309 7,022 449,091 456,113 — Total Commercial Banking 4,702 930 22,007 27,639 2,474,237 2,501,876 — Total originated loans 18,719 9,776 42,842 71,337 6,580,688 6,652,025 — Acquired loans: Personal Banking: Residential mortgage loans 58 606 623 1,287 141,073 142,360 235 Home equity loans 854 235 1,205 2,294 317,829 320,123 148 Consumer loans 1,018 305 209 1,532 182,466 183,998 18 Total Personal Banking 1,930 1,146 2,037 5,113 641,368 646,481 401 Commercial Banking: Commercial real estate loans 423 615 7,835 8,873 410,045 418,918 2,378 Commercial loans 223 151 940 1,314 79,828 81,142 144 Total Commercial Banking 646 766 8,775 10,187 489,873 500,060 2,522 Total acquired loans 2,576 1,912 10,812 15,300 1,131,241 1,146,541 2,923 Total loans $ 21,295 11,688 53,654 86,637 7,711,929 7,798,566 2,923 (1) Represents acquired loans that were originally recorded at fair value upon acquisition. These loans are considered to be accruing because we can reasonably estimate future cash flows on and expect to fully collect the carrying value of these loans. Therefore, we are accreting the difference between the carrying value and their expected cash flows into interest income. The following table provides information related to loan payment delinquencies at December 31, 2015 (in thousands): 30-59 Days delinquent 60-89 Days delinquent 90 Days or greater delinquent Total delinquency Current Total loans receivable 90 Days or Originated loans: Personal Banking: Residential mortgage loans $ 25,503 7,541 15,564 48,608 2,646,568 2,695,176 — Home equity loans 4,870 1,836 5,251 11,957 1,043,950 1,055,907 — Consumer loans 6,092 2,340 2,857 11,289 306,344 317,633 — Total Personal Banking 36,465 11,717 23,672 71,854 3,996,862 4,068,716 — Commercial Banking: Commercial real estate loans 22,212 6,875 14,942 44,029 1,891,128 1,935,157 — Commercial loans 1,703 598 2,449 4,750 356,658 361,408 — Total Commercial Banking 23,915 7,473 17,391 48,779 2,247,786 2,296,565 — Total originated loan 60,380 19,190 41,063 120,633 6,244,648 6,365,281 — Acquired loans: Personal Banking: Residential mortgage loans 440 249 786 1,475 44,241 45,716 540 Home equity loans 936 642 861 2,439 128,760 131,199 462 Consumer loans 1,009 181 69 1,259 201,397 202,656 26 Total Personal Banking 2,385 1,072 1,716 5,173 374,398 379,571 1,028 Commercial Banking: Commercial real estate loans 2,665 1,353 4,089 8,107 408,170 416,277 2,582 Commercial loans 1,165 — 150 1,315 59,677 60,992 140 Total Commercial Banking 3,830 1,353 4,239 9,422 467,847 477,269 2,722 Total acquired loan 6,215 2,425 5,955 14,595 842,245 856,840 3,750 Total $ 66,595 21,615 47,018 135,228 7,086,893 7,222,121 3,750 (1) Represents acquired loans that were originally recorded at fair value upon acquisition. These loans are considered to be accruing because we can reasonably estimate future cash flows on and expect to fully collect the carrying value of these loans. Therefore, we are accreting the difference between the carrying value and their expected cash flows into interest income.
Schedule of credit quality indicators	The following table sets forth information about credit quality indicators updated during the quarter ended September 30, 2016 (in thousands): Pass Special mention Substandard Doubtful Loss Total loans receivable Originated loans: Personal Banking: Residential mortgage loans $ 2,659,867 — 16,786 — — 2,676,653 Home equity loans 1,021,191 — 7,791 — — 1,028,982 Consumer loans 441,552 — 2,962 — — 444,514 Total Personal Banking 4,122,610 — 27,539 — — 4,150,149 Commercial Banking: Commercial real estate loans 1,884,719 45,458 115,572 14 — 2,045,763 Commercial loans 404,365 11,690 37,157 2,901 — 456,113 Total Commercial Banking 2,289,084 57,148 152,729 2,915 — 2,501,876 Total originated loans 6,411,694 57,148 180,268 2,915 — 6,652,025 Acquired loans: Personal Banking: Residential mortgage loans 140,553 — 1,807 — — 142,360 Home equity loans 317,452 — 2,671 — — 320,123 Consumer loans 183,333 — 665 — — 183,998 Total Personal Banking 641,338 — 5,143 — — 646,481 Commercial Banking: Commercial real estate loans 381,097 16,305 21,516 — — 418,918 Commercial loans 74,956 3,017 3,169 — — 81,142 Total Commercial Banking 456,053 19,322 24,685 — — 500,060 Total acquired loans 1,097,391 19,322 29,828 — — 1,146,541 Total loans $ 7,509,085 76,470 210,096 2,915 — 7,798,566 The following table sets forth information about credit quality indicators, which were updated during the year ended December 31, 2015 (in thousands): Pass Special mention Substandard Doubtful Loss Total loans receivable Originated loans: Personal Banking: Residential mortgage loans $ 2,680,562 — 13,274 — 1,340 2,695,176 Home equity loans 1,048,397 — 7,510 — — 1,055,907 Consumer loans 315,159 — 2,474 — — 317,633 Total Personal Banking 4,044,118 — 23,258 — 1,340 4,068,716 Commercial Banking: Commercial real estate loans 1,778,140 46,518 110,384 115 — 1,935,157 Commercial loans 299,455 23,023 37,820 1,110 — 361,408 Total Commercial Banking 2,077,595 69,541 148,204 1,225 — 2,296,565 Total originated loans 6,121,713 69,541 171,462 1,225 1,340 6,365,281 Acquired loans: Personal Banking: Residential mortgage loans 44,930 — 786 — — 45,716 Home equity loans 130,338 — 861 — — 131,199 Consumer loans 202,587 — 69 — — 202,656 Total Personal Banking 377,855 — 1,716 — — 379,571 Commercial Banking: Commercial real estate loans 392,811 6,872 16,594 — — 416,277 Commercial loans 59,948 707 337 — — 60,992 Total Commercial Banking 452,759 7,579 16,931 — — 477,269 Total acquired loans 830,614 7,579 18,647 — — 856,840 Total $ 6,952,327 77,120 190,109 1,225 1,340 7,222,121

Goodwill and Other Intangible29

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of intangible assets subject to amortization	The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands): September 30, December 31, Amortizable intangible assets: Core deposit intangibles — gross $ 37,953 30,578 Acquisitions 25,732 7,375 Less: accumulated amortization (32,910 ) (31,192 ) Core deposit intangibles — net 30,775 6,761 Customer and Contract intangible assets — gross 8,496 8,234 Acquisitions 1,640 262 Less: accumulated amortization (7,010 ) (6,275 ) Customer and Contract intangible assets — net $ 3,126 2,221
Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets	The following table shows the actual aggregate amortization expense for the quarters ended September 30, 2016 and 2015 , as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands): For the quarter ended September 30, 2016 $ 1,068 For the quarter ended September 30, 2015 422 For the nine months ended September 30, 2016 2,453 For the nine months ended September 30, 2015 959 For the year ending December 31, 2016 4,240 For the year ending December 31, 2017 6,655 For the year ending December 31, 2018 5,762 For the year ending December 31, 2019 4,869 For the year ending December 31, 2020 3,976 For the year ending December 31, 2021 3,170
Schedule of the changes in carrying amount of goodwill	The following table provides information for the changes in the carrying amount of goodwill (in thousands): Community Consumer Total Balance at December 31, 2014 $ 173,710 1,613 175,323 Goodwill acquired 86,413 — 86,413 Impairment losses — — — Balance at December 31, 2015 260,123 1,613 261,736 Goodwill acquired 45,975 — 45,975 Impairment losses — — — Balance at September 30, 2016 $ 306,098 1,613 307,711

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	The computation of basic and diluted earnings per share follows (in thousands, except share data and per share amounts): Quarter ended Nine months ended 2016 2015 2016 2015 Reported net income $ 14,197 12,872 25,173 44,347 Weighted average common shares outstanding 99,602,535 95,256,807 99,224,565 92,822,720 Dilutive potential shares due to effect of stock options 1,465,710 568,991 1,008,942 433,379 Total weighted average common shares and dilutive potential shares 101,068,245 95,825,798 100,233,507 93,256,099 Basic earnings per share: $ 0.14 0.14 0.25 0.48 Diluted earnings per share: $ 0.14 0.13 0.25 0.48

Pension and Other Post-retire31

Pension and Other Post-retirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Schedule of net periodic costs for the defined benefit pension plans and the post retirement healthcare plans	The following table sets forth the net periodic costs for the defined benefit pension plans and post retirement healthcare plans for the periods indicated (in thousands): Components of net periodic benefit cost Quarter ended September 30, Pension benefits Other post-retirement benefits 2016 2015 2016 2015 Service cost $ 1,374 1,430 — — Interest cost 1,695 1,531 18 14 Expected return on plan assets (2,474 ) (2,593 ) — — Amortization of prior service cost (581 ) (581 ) — — Amortization of the net loss 927 925 22 15 Net periodic (benefit)/ cost $ 941 712 40 29 Nine months ended September 30, Pension benefits Other post-retirement benefits 2016 2015 2016 2015 Service cost $ 4,122 4,290 — — Interest cost 5,087 4,593 53 44 Expected return on plan assets (7,423 ) (7,779 ) — — Amortization of prior service cost (1,742 ) (1,743 ) — — Amortization of the net loss 2,782 2,775 67 45 Net periodic (benefit)/ cost $ 2,826 2,136 120 89

Disclosures About Fair Value 32

Disclosures About Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Schedule of the carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition	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 September 30, 2016 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 320,566 320,566 320,566 — — Securities available-for-sale 890,688 890,688 3,892 877,567 9,229 Securities held-to-maturity 22,584 23,249 — 23,249 — Loans receivable, net 7,735,320 8,139,180 30,355 — 8,108,825 Accrued interest receivable 21,591 21,591 21,591 — — FHLB Stock 7,660 7,660 — — — Total financial assets $ 8,998,409 9,402,934 376,404 900,816 8,118,054 Financial liabilities: Savings and checking deposits $ 6,511,356 6,511,356 6,511,356 — — Time deposits 1,691,447 1,711,487 — — 1,711,487 Borrowed funds 135,891 135,891 135,891 — — Junior subordinated debentures 111,213 113,967 — — 113,967 Cash flow hedges - swaps 3,512 3,512 — 3,512 — Accrued interest payable 682 682 682 — — Total financial liabilities $ 8,454,101 8,476,895 6,647,929 3,512 1,825,454 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, 2015 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 167,408 167,408 167,408 — — Securities available-for-sale 874,405 874,405 1,894 863,556 8,955 Securities held-to-maturity 31,689 32,552 — 32,552 — Loans receivable, net 7,159,449 7,482,431 — — 7,482,431 Accrued interest receivable 21,072 21,072 21,072 — — FHLB Stock 40,903 40,903 — — — Total financial assets $ 8,294,926 8,618,771 190,374 896,108 7,491,386 Financial liabilities: Savings and checking accounts $ 4,917,863 4,917,863 4,917,863 — — Time deposits 1,694,718 1,710,388 — — 1,710,388 Borrowed funds 975,007 998,527 118,664 — 879,863 Junior subordinated debentures 111,213 115,268 — — 115,268 Cash flow hedges - swaps 4,276 4,276 — 4,276 — Accrued interest payable 1,993 1,993 1,993 — — Total financial liabilities $ 7,705,070 7,748,315 5,038,520 4,276 2,705,519
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 at September 30, 2016 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Equity securities $ 3,892 — — 3,892 Debt securities: U.S. government and agencies — 7 — 7 Government sponsored enterprises — 313,203 — 313,203 States and political subdivisions — 71,061 — 71,061 Corporate — 8,161 9,229 17,390 Total debt securities — 392,432 9,229 401,661 Residential mortgage-backed securities: GNMA — 32,372 — 32,372 FNMA — 114,942 — 114,942 FHLMC — 87,729 — 87,729 Non-agency — 586 — 586 Collateralized mortgage obligations: GNMA — 7,275 — 7,275 FNMA — 102,781 — 102,781 FHLMC — 130,362 — 130,362 SBA — 7,034 — 7,034 Non-agency — 2,054 — 2,054 Total mortgage-backed securities — 485,135 — 485,135 Interest rate swaps — (3,512 ) — (3,512 ) Total assets and liabilities $ 3,892 874,055 9,229 887,176 The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2015 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Equity securities $ 1,894 — — 1,894 Debt securities: U.S. government and agencies — 11 — 11 Government sponsored enterprises — 294,440 — 294,440 States and political subdivisions — 82,868 — 82,868 Corporate — 7,520 8,955 16,475 Total debt securities — 384,839 8,955 393,794 Residential mortgage-backed securities: GNMA — 27,082 — 27,082 FNMA — 99,170 — 99,170 FHLMC — 50,369 — 50,369 Non-agency — 606 — 606 Collateralized mortgage obligations: GNMA — 10,669 — 10,669 FNMA — 122,528 — 122,528 FHLMC — 157,378 — 157,378 SBA — 8,166 — 8,166 Non-agency — 2,749 — 2,749 Total mortgage-backed securities — 478,717 — 478,717 Interest rate swaps — (4,276 ) — (4,276 ) Total assets and liabilities $ 1,894 859,280 8,955 870,129
Schedule of reconciliation of debt securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	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 periods indicated (in thousands): Quarter ended Nine months ended September 30, September 30, September 30, September 30, Beginning balance $ 8,719 9,223 8,955 10,597 Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation): Included in net income as OTTI — — — — Included in other comprehensive income 510 (226 ) 274 (1,600 ) Purchases — — — — Sales — — — — Transfers in to Level 3 — — — — Transfers out of Level 3 — — — — Ending balance $ 9,229 8,997 9,229 8,997
Schedule of fair value measurement for nonrecurring assets	Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans measured for impairment, mortgage servicing rights, and real estate owned. The following table represents the fair value measurement for nonrecurring assets at September 30, 2016 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans measured for impairment $ — — 48,517 48,517 Mortgage servicing rights $ — — 1,493 1,493 Real estate owned — — 4,841 4,841 Total assets $ — — 54,851 54,851 Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans measured for impairment and real estate owned. The following table represents the fair value measurement for nonrecurring assets at December 31, 2015 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans measured for impairment $ — — 48,181 48,181 Real estate owned — — 8,725 8,725 Total assets $ — — 56,906 56,906
Schedule of quantitative information about assets measured at fair value on a recurring and nonrecurring basis for Level 3 Fair Value Measurements	The 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 September 30, 2016 (dollar amounts in thousands): Fair value Valuation techniques Significant unobservable inputs Range (weighted average) Debt securities $ 9,229 Discounted cash Discount margin 0.4% to 2.1% (0.7%) flow Default rates 1.0% Prepayment speeds 1.0 annually Loans measured for impairment 48,517 Appraisal value (1) Estimated cost to sell 10.0% Discounted cash flow Discount rate 3.8% to 20.0% (11.0%) Mortgage servicing rights 1,493 Discounted cash Annual service cost $80 flow Prepayment rates 7.1% to 11.5% (11.3%) Expected life (months) 63.5 to 78.3 (77.6) Option adjusted spread 800 basis points Forward yield curve 0.5% to 1.4% (1.1%) Real estate owned 4,841 Appraisal value (1) Estimated cost to sell 10.0% (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.

Guaranteed Preferred Benefici33

Guaranteed Preferred Beneficial Interests in Company's Junior Subordinated Deferrable Interest Debentures (Trust-Preferred Securities) and Interest Rate Swap Agreements (Tables)	9 Months Ended
	Sep. 30, 2016
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	The following table shows liability derivatives, included in other liabilities, at September 30, 2016 and December 31, 2015 (in thousands): September 30, December 31, Fair value $ 3,512 4,276 Notional amount 50,000 50,000 Collateral posted 4,205 4,705

Changes in Accumulated Other 34

Changes in Accumulated Other Comprehensive Income/ (Loss) (Tables)	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Schedule of changes in accumulated other comprehensive income by component	The following table shows the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): For the quarter ended September 30, 2016 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of June 30, 2016 $ 7,866 (2,753 ) (24,630 ) (19,517 ) Other comprehensive income before reclassification adjustments (785 ) 471 — (314 ) Amounts reclassified from accumulated other comprehensive income (1), (2) (36 ) — 224 188 Net other comprehensive income (821 ) 471 224 (126 ) Balance as of September 30, 2016 $ 7,045 (2,282 ) (24,406 ) (19,643 ) For the quarter ended September 30, 2015 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of June 30, 2015 $ 4,278 (3,546 ) (23,315 ) (22,583 ) Other comprehensive income before reclassification adjustments 2,379 45 — 2,424 Amounts reclassified from accumulated other comprehensive income (3), (4) (120 ) — 219 99 Net other comprehensive income/ (loss) 2,259 45 219 2,523 Balance as of September 30, 2015 $ 6,537 (3,501 ) (23,096 ) (20,060 ) (1) Consists of realized loss on securities (gain on sales of investments, net) of $59 , net of tax (income tax expense) of $(23) . (2) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net loss (compensation and employee benefits) of $(949) , net of tax (income tax expense) of $144 . See note 8. (3) Consists of realized gains on securities (gain on sales of investments, net) of $197 , net of tax (income tax expense) of $(77) . (4) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net loss (compensation and employee benefits) of $(940) , net of tax (income tax expense) of $140 . See note 8. The following table shows the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): For the nine months ended September 30, 2016 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2015 $ 3,325 (2,779 ) (25,081 ) (24,535 ) Other comprehensive income before reclassification adjustments 3,717 497 — 4,214 Amounts reclassified from accumulated other comprehensive income (1), (2) 3 — 675 678 Net other comprehensive income 3,720 497 675 4,892 Balance as of September 30, 2016 $ 7,045 (2,282 ) (24,406 ) (19,643 ) For the nine months ended September 30, 2015 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2014 $ 3,461 (4,078 ) (23,753 ) (24,370 ) Other comprehensive income before reclassification adjustments 3,543 577 — 4,120 Amounts reclassified from accumulated other comprehensive income (3), (4) (467 ) — 657 190 Net other comprehensive income 3,076 577 657 4,310 Balance as of September 30, 2015 $ 6,537 (3,501 ) (23,096 ) (20,060 ) (1) Consists of realized gains on securities (loss on sales of investments, net) of $(4) , net of tax (income tax expense) of $1 . (2) Consists of amortization of prior service cost (compensation and employee benefits) of $1,742 and amortization of net loss (compensation and employee benefits) of $(2,849) , net of tax (income tax expense) of $432 . See note 8. (3) Consists of realized gains on securities (gain on sales of investments, net) of $766 , net of tax (income tax expense) of $(299) . (4) Consists of amortization of prior service cost (compensation and employee benefits) of $1,743 and amortization of net loss (compensation and employee benefits) of $(2,820) , net of tax (income tax expense) of $420 . See note 8.

Basis of Presentation and Inf35

Basis of Presentation and Informational Disclosures (Details)	Sep. 30, 2016USD ($)bankshares	May 18, 2016$ / sharesshares	Sep. 30, 2016USD ($)bankshares	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)bankshares	Sep. 30, 2015USD ($)
Stock Related Compensation
Number of banking locations | bank	176		176		176
Loans receivable | $			$ 82,435,000	$ 76,087,000	$ 245,861,000	$ 217,783,000
Stock-Based Compensation
Stock-based compensation expense | $			$ 6,400,000	$ 1,000,000	$ 9,600,000	$ 3,300,000
Employee Stock Ownership Plan (ESOP), number of unallocated shares distributed to employees (in shares) | shares	401,356		401,356		401,356
Employee Stock Ownership Plan (ESOP), compensation expense | $			$ 5,500,000		$ 6,300,000
Income Taxes - Uncertain Tax Positions
Unrecognized tax benefits liability | $	$ 0		0		0
Equity Option
Stock-Based Compensation
Exercise price (in dollars per share) | $ / shares		$ 14.15
Grant date fair value (in dollars per share) | $ / shares		$ 1.52
Award vesting period (in years)		10 years
Employee Stock Ownership Plan
Stock-Based Compensation
Compensation expense yet to be recognized | $	$ 4,300,000		4,300,000		4,300,000
Employee Stock Ownership Plan (ESOP), number of shares retired (in shares) | shares	1,366,574
Restricted common shares
Stock-Based Compensation
Exercise price (in dollars per share) | $ / shares		$ 14.51
Compensation expense yet to be recognized | $	$ 16,200,000		$ 16,200,000		$ 16,200,000
Employees | Equity Option
Stock-Based Compensation
Options, grants in period (in shares) | shares		660,600
Employees | Restricted common shares
Stock-Based Compensation
Options, grants in period (in shares) | shares		310,160
Director | Equity Option
Stock-Based Compensation
Options, grants in period (in shares) | shares		64,800
Director | Restricted common shares
Stock-Based Compensation
Options, grants in period (in shares) | shares		24,300

Acquisition (Details)

Acquisition (Details) - Northwest - First Niagara Bank and First Niagara Securities, Inc. $ in Thousands	Sep. 09, 2016USD ($)branch	Sep. 30, 2016USD ($)
Acquisition
Number of branch locations acquired | branch	18
Acquired assets under management	$ 450,000
Costs related to acquisition		$ 8,200
Business Combination, Consideration Transferred [Abstract]
Deposit premium paid	76,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash and cash equivalents	1,119,084
Loans	455,857
Other assets	16,684
Total assets acquired	1,618,500
Deposits	(1,642,846)
Other liabilities	(21,224)
Total liabilities assumed	1,664,070
Goodwill	$ 45,570
Core Deposits
Acquisition
Finite-lived intangible asset, useful life	11 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Core deposit intangible	$ 25,732
Customer Relationships
Acquisition
Finite-lived intangible asset, useful life	7 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Core deposit intangible	$ 1,100

Business Segments (Details)

Business Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)office	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)officesegment	Sep. 30, 2015USD ($)	Dec. 31, 2015USD ($)
Segment Reporting [Abstract]
Number of reportable business segments | segment			2
Number of consumer finance offices | office	51		51
Business Segments
Interest income	$ 86,100	$ 81,091	$ 258,092	$ 233,941
Interest expense	7,454	14,150	31,208	41,841
Provision for loan losses	5,538	3,167	11,397	5,117
Noninterest income	20,818	18,140	60,541	49,290
Noninterest expense	75,032	63,804	241,568	172,650
Income tax expense (benefit)	4,697	5,238	9,287	19,276
Net income	14,197	12,872	25,173	44,347
Total assets	9,714,607	8,934,908	9,714,607	8,934,908	$ 8,951,899
Intersegment
Business Segments
Interest income	0	0	0	0
Community Banking
Business Segments
Interest income			244,572	219,961
Interest expense			27,943	38,660
Provision for loan losses			8,854	3,766
Noninterest income			59,278	48,162
Noninterest expense			231,983	161,915
Income tax expense (benefit)			10,144	19,835
Net income			26,844	45,722
Total assets	9,590,487	8,805,421	9,590,487	8,805,421
Community Banking | Operating Segments
Business Segments
Interest income	81,597	76,357
Interest expense	6,338	12,991
Provision for loan losses	4,276	2,666
Noninterest income	20,424	17,756
Noninterest expense	71,932	59,793
Income tax expense (benefit)	5,147	5,617
Net income	14,973	13,664
Total assets	9,590,487	8,805,421	9,590,487	8,805,421
Community Banking | Intersegment
Business Segments
Interest income	645	618	1,918	1,775
Consumer Finance
Business Segments
Interest income			12,831	13,339
Interest expense			1,918	1,775
Provision for loan losses			2,543	1,351
Noninterest income			1,152	1,043
Noninterest expense			8,715	9,185
Income tax expense (benefit)			335	859
Net income			472	1,212
Total assets	109,601	111,109	109,601	111,109
Consumer Finance | Operating Segments
Business Segments
Interest income	4,264	4,517
Interest expense	645	618
Provision for loan losses	1,262	501
Noninterest income	372	362
Noninterest expense	2,908	3,151
Income tax expense (benefit)	(74)	250
Net income	(105)	359
Total assets	109,601	111,109	109,601	111,109
Consumer Finance | Intersegment
Business Segments
Interest income	0	0	0	0
All other
Business Segments
Interest income	239	217	689	641
Interest expense	471	541	1,347	1,406
Provision for loan losses	0	0	0	0
Noninterest income	22	22	111	85
Noninterest expense	192	860	870	1,550
Income tax expense (benefit)	(376)	(629)	(1,192)	(1,418)
Net income	(671)	(1,151)	(2,143)	(2,587)
Total assets	14,519	18,378	14,519	18,378
All other | Intersegment
Business Segments
Interest income	$ (645)	$ (618)	$ (1,918)	$ (1,775)

Investment securities and imp38

Investment securities and impairment of investment securities - Available For Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Amortized cost
Total	$ 879,141	$ 868,956
Gross unrealized holding gains
Total	13,273	11,733
Gross unrealized holding losses
Total	(1,726)	(6,284)
Fair value
Fair value	890,688	874,405
U.S. government and agencies
Amortized cost
Due in one year or less	7	11
Gross unrealized holding gains
Due in one year or less	0	0
Gross unrealized holding losses
Due in one year or less	0	0
Fair value
Due in one year or less	7	11
Debt issued by government sponsored enterprises:
Amortized cost
Due in one year or less	59,980	15,500
Due after one year through five years	252,073	257,463
Due after five years through ten years	625	12,721
Due after ten years		9,815
Gross unrealized holding gains
Due in one year or less	74	3
Due after one year through five years	579	298
Due after five years through ten years	0	14
Due after ten years		135
Gross unrealized holding losses
Due in one year or less	0	(48)
Due after one year through five years	(128)	(1,395)
Due after five years through ten years	0	(23)
Due after ten years		(43)
Fair value
Due in one year or less	60,054	15,455
Due after one year through five years	252,524	256,366
Due after five years through ten years	625	12,712
Due after ten years		9,907
Equity securities
Amortized cost
Total	3,351	1,400
Gross unrealized holding gains
Total	547	500
Gross unrealized holding losses
Total	(6)	(6)
Fair value
Fair value	3,892	1,894
Municipal securities
Amortized cost
Due in one year or less	2,201	1,684
Due after one year through five years	11,343	14,327
Due after five years through ten years	10,272	12,400
Due after ten years	45,137	52,286
Gross unrealized holding gains
Due in one year or less	9	8
Due after one year through five years	191	117
Due after five years through ten years	315	323
Due after ten years	1,595	1,727
Gross unrealized holding losses
Due in one year or less	0	0
Due after one year through five years	(2)	(4)
Due after five years through ten years	0	0
Due after ten years	0	0
Fair value
Due in one year or less	2,210	1,692
Due after one year through five years	11,532	14,440
Due after five years through ten years	10,587	12,723
Due after ten years	46,732	54,013
Corporate debt securities
Amortized cost
Due after ten years	14,445	14,463
Gross unrealized holding gains
Due after ten years	3,294	2,417
Gross unrealized holding losses
Due after ten years	(349)	(405)
Fair value
Due after ten years	17,390	16,475
Residential mortgage-backed securities
Amortized cost
Total	479,707	476,886
Gross unrealized holding gains
Total	6,669	6,191
Gross unrealized holding losses
Total	(1,241)	(4,360)
Fair value
Fair value	485,135	478,717
Fixed rate | Pass-through
Amortized cost
Total	184,225	118,266
Gross unrealized holding gains
Total	3,312	2,480
Gross unrealized holding losses
Total	(84)	(420)
Fair value
Fair value	187,453	120,326
Fixed rate | Non-agency CMOs
Amortized cost
Total	1,810	2,519
Gross unrealized holding gains
Total	244	230
Gross unrealized holding losses
Total	0	0
Fair value
Fair value	2,054	2,749
Fixed rate | Agency CMOs
Amortized cost
Total	177,317	215,719
Gross unrealized holding gains
Total	681	389
Gross unrealized holding losses
Total	(1,005)	(3,881)
Fair value
Fair value	176,993	212,227
Variable rate | Pass-through
Amortized cost
Total	46,067	54,292
Gross unrealized holding gains
Total	2,114	2,616
Gross unrealized holding losses
Total	(5)	(7)
Fair value
Fair value	48,176	56,901
Variable rate | Agency CMOs
Amortized cost
Total	70,288	86,090
Gross unrealized holding gains
Total	318	476
Gross unrealized holding losses
Total	(147)	(52)
Fair value
Fair value	$ 70,459	$ 86,514

Investment securities and imp39

Investment securities and impairment of investment securities - Held To Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Amortized cost
Total	$ 22,584	$ 31,689
Gross unrealized holding gains
Total	665	863
Gross unrealized holding losses
Total	0	0
Fair value
Total	23,249	32,552
Municipal securities
Amortized cost
Due after five years through ten years	274	274
Due after ten years	4,807	6,336
Gross unrealized holding gains
Due after five years through ten years	1	1
Due after ten years	107	239
Gross unrealized holding losses
Due after five years through ten years	0	0
Due after ten years	0	0
Fair value
Due after five years through ten years	275	275
Due after ten years	4,914	6,575
Residential mortgage-backed securities
Amortized cost
Total	17,503	25,079
Gross unrealized holding gains
Total	557	623
Gross unrealized holding losses
Total	0	0
Fair value
Total	18,060	25,702
Fixed rate | Pass-through
Amortized cost
Total	5,276	6,458
Gross unrealized holding gains
Total	315	351
Gross unrealized holding losses
Total	0	0
Fair value
Total	5,591	6,809
Fixed rate | Agency CMOs
Amortized cost
Total	8,353	14,033
Gross unrealized holding gains
Total	163	219
Gross unrealized holding losses
Total	0	0
Fair value
Total	8,516	14,252
Variable rate | Pass-through
Amortized cost
Total	3,019	3,618
Gross unrealized holding gains
Total	69	41
Gross unrealized holding losses
Total	0	0
Fair value
Total	3,088	3,659
Variable rate | Agency CMOs
Amortized cost
Total	855	970
Gross unrealized holding gains
Total	10	12
Gross unrealized holding losses
Total	0	0
Fair value
Total	$ 865	$ 982

Investment securities and imp40

Investment securities and impairment of investment securities - Fair Value of and Gross Unrealized Losses on Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Marketable securities
Less than 12 months - Fair value	$ 249,234	$ 273,909
Less than 12 months - Unrealized loss	(306)	(1,331)
12 months or more - Fair value	97,167	244,871
12 months or more - Unrealized loss	(1,420)	(4,953)
Total - Fair value	346,401	518,780
Total - Unrealized loss	(1,726)	(6,284)
U.S. government and agencies
Marketable securities
Less than 12 months - Fair value	145,648	143,751
Less than 12 months - Unrealized loss	(106)	(723)
12 months or more - Fair value	10,376	92,961
12 months or more - Unrealized loss	(22)	(786)
Total - Fair value	156,024	236,712
Total - Unrealized loss	(128)	(1,509)
Municipal securities
Marketable securities
Less than 12 months - Fair value	2,334	7,505
Less than 12 months - Unrealized loss	(2)	(4)
12 months or more - Fair value	66	0
12 months or more - Unrealized loss	0	0
Total - Fair value	2,400	7,505
Total - Unrealized loss	(2)	(4)
Corporate debt securities
Marketable securities
Less than 12 months - Fair value	0	0
Less than 12 months - Unrealized loss	0	0
12 months or more - Fair value	2,079	2,021
12 months or more - Unrealized loss	(349)	(405)
Total - Fair value	2,079	2,021
Total - Unrealized loss	(349)	(405)
Equity securities
Marketable securities
Less than 12 months - Fair value	0	544
Less than 12 months - Unrealized loss	0	(6)
12 months or more - Fair value	545	0
12 months or more - Unrealized loss	(6)	0
Total - Fair value	545	544
Total - Unrealized loss	(6)	(6)
Residential mortgage-backed securities | Agency CMOs
Marketable securities
Less than 12 months - Fair value	101,252	122,109
Less than 12 months - Unrealized loss	(198)	(598)
12 months or more - Fair value	84,101	149,889
12 months or more - Unrealized loss	(1,043)	(3,762)
Total - Fair value	185,353	271,998
Total - Unrealized loss	$ (1,241)	$ (4,360)

Investment securities and imp41

Investment securities and impairment of investment securities - Cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Cumulative roll forward of credit related impairment losses recognized in earnings for debt securities held and not intended to be sold:
Beginning balance	$ 8,408	$ 8,489	$ 8,436	$ 8,894
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized	0	0	0	0
Reduction for losses realized during the quarter	(16)	(30)	(44)	(75)
Reduction for securities sold/ called realized during the quarter	0	0	0	(360)
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized	0	0	0	0
Ending balance	$ 8,392	$ 8,459	$ 8,392	$ 8,459

Loans receivable - Summary of O

Loans receivable - Summary of Originated and Acquired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 7,993,690		$ 7,400,989
Deferred loan costs	22,329		20,065
Allowance for loan losses	(63,246)	$ (60,781)	(62,672)	$ (60,547)	$ (59,057)	$ (67,518)
Total loans receivable, net	7,735,320		7,159,449
Residential mortgage loans held for sale	30,355		0
Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(13,256)		(10,778)
Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(171,666)		(172,840)
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(32,531)		(15,315)
Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	4,787,557		4,439,000
Allowance for loan losses				(15,576)	(14,581)	(16,249)
Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,821,117		2,741,277
Allowance for loan losses				(4,587)	(4,892)	(5,581)
Residential mortgage loans held for sale	30,400
Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,349,105		1,187,106
Allowance for loan losses				(3,371)	(3,445)	(4,550)
Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	617,335		510,617
Allowance for loan losses				(7,618)	(6,244)	(6,118)
Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	3,206,133		2,961,989
Allowance for loan losses				(44,971)	(44,476)	(46,904)
Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,636,347		2,524,274
Allowance for loan losses				(30,829)	(30,163)	(33,389)
Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	569,786		437,715
Allowance for loan losses				$ (14,142)	$ (14,313)	$ (13,515)
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	6,844,617		6,531,938
Deferred loan costs	18,819		14,806
Allowance for loan losses	(58,024)	(55,323)	(60,970)
Total loans receivable, net	6,594,001		6,304,311
Originated | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(13,256)		(10,778)
Originated | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(167,915)		(159,553)
Originated | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(30,240)		(11,132)
Originated | Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	4,144,586		4,064,688
Allowance for loan losses	(16,617)	(14,281)	(16,121)
Originated | Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,678,757		2,695,561
Allowance for loan losses	(4,002)	(3,022)	(4,692)
Originated | Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,028,982		1,055,907
Allowance for loan losses	(3,519)	(3,335)	(3,941)
Originated | Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	436,847		313,220
Allowance for loan losses	(9,096)	(7,924)	(7,488)
Originated | Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,700,031		2,467,250
Allowance for loan losses	(41,407)	(41,042)	(44,849)
Originated | Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,213,678		2,094,710
Allowance for loan losses	(24,530)	(25,686)	(32,348)
Originated | Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	486,353		372,540
Allowance for loan losses	(16,877)	(15,356)	(12,501)
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,149,073		869,051
Deferred loan costs	3,510		5,259
Allowance for loan losses	(5,222)	(5,458)	(1,702)
Total loans receivable, net	1,141,319		855,138
Acquired | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	0		0
Acquired | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(3,751)		(13,287)
Acquired | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Undisbursed loan proceeds	(2,291)		(4,183)
Acquired | Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	642,971		374,312
Allowance for loan losses	(1,893)	(1,741)	(229)
Acquired | Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	142,360		45,716
Allowance for loan losses	(78)	(61)	(18)
Acquired | Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	320,123		131,199
Allowance for loan losses	(1,171)	(1,128)	(101)
Acquired | Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	180,488		197,397
Allowance for loan losses	(644)	(552)	(110)
Acquired | Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	506,102		494,739
Allowance for loan losses	(3,329)	(3,717)	(1,473)
Acquired | Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	422,669		429,564
Allowance for loan losses	(2,422)	(3,165)	(1,439)
Acquired | Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	83,433		65,175
Allowance for loan losses	$ (907)	$ (552)	$ (34)

Loans receivable - Outstanding

Loans receivable - Outstanding Principal Balance and Related Carrying Value of Acquired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	$ 1,158,555	$ 869,263
Carrying value	1,146,541	856,840
Acquired loans evaluated individually for future credit losses
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	17,212	21,069
Carrying value	13,641	16,867
Acquired loans evaluated collectively for future credit losses
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	1,141,343	848,194
Carrying value	$ 1,132,900	$ 839,973

Loans receivable - Changes in t

Loans receivable - Changes in the Accretable Discount (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Changes in accretable yield
Beginning balance	$ 2,019	$ 0
Accretion	(851)	(377)
Net reclassification from nonaccretable yield	1,080	724
Ending balance	$ 2,248	2,019
LNB | Acquired
Changes in accretable yield
LNB Bancorp, Inc. acquisition		$ 1,672

Loans receivable - Composition

Loans receivable - Composition of Acquired Impaired Loans by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	$ 116,372	$ 117,851
Average recorded investment in impaired loans	121,458	130,528
Interest income recognized	4,294	5,462
Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	38,104	37,679
Average recorded investment in impaired loans	36,878	37,175
Interest income recognized	1,303	1,542
Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	24,249	24,858
Average recorded investment in impaired loans	24,401	24,554
Interest income recognized	819	944
Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	9,576	9,369
Average recorded investment in impaired loans	9,155	9,644
Interest income recognized	368	497
Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	4,279	3,452
Average recorded investment in impaired loans	3,322	2,977
Interest income recognized	116	101
Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	78,268	80,172
Average recorded investment in impaired loans	84,580	93,353
Interest income recognized	2,991	3,920
Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	57,833	66,009
Average recorded investment in impaired loans	67,422	77,166
Interest income recognized	2,258	3,226
Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	20,435	14,163
Average recorded investment in impaired loans	17,158	16,187
Interest income recognized	733	694
Acquired loans evaluated individually for future credit losses
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	13,641	16,867
Outstanding principal balance	17,212	21,069
Related impairment reserve	257	375
Average recorded investment in impaired loans	15,254	17,812
Interest income recognized	851	377
Acquired loans evaluated individually for future credit losses | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	2,957	4,332
Outstanding principal balance	5,245	6,857
Related impairment reserve	195	22
Average recorded investment in impaired loans	3,645	4,610
Interest income recognized	336	110
Acquired loans evaluated individually for future credit losses | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	1,381	1,981
Outstanding principal balance	2,153	2,910
Related impairment reserve	184	14
Average recorded investment in impaired loans	1,681	2,083
Interest income recognized	154	41
Acquired loans evaluated individually for future credit losses | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	1,407	2,084
Outstanding principal balance	2,739	3,455
Related impairment reserve	8	6
Average recorded investment in impaired loans	1,746	2,222
Interest income recognized	150	51
Acquired loans evaluated individually for future credit losses | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	169	267
Outstanding principal balance	353	492
Related impairment reserve	3	2
Average recorded investment in impaired loans	218	305
Interest income recognized	32	18
Acquired loans evaluated individually for future credit losses | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	10,684	12,535
Outstanding principal balance	11,967	14,212
Related impairment reserve	62	353
Average recorded investment in impaired loans	11,609	13,202
Interest income recognized	515	267
Acquired loans evaluated individually for future credit losses | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	10,434	12,288
Outstanding principal balance	11,703	13,946
Related impairment reserve	62	353
Average recorded investment in impaired loans	11,361	12,867
Interest income recognized	507	249
Acquired loans evaluated individually for future credit losses | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value	250	247
Outstanding principal balance	264	266
Related impairment reserve	0	0
Average recorded investment in impaired loans	248	335
Interest income recognized	$ 8	$ 18

Loans receivable - Changes in46

Loans receivable - Changes in the Allowance for Losses on Loans Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	$ 60,781	$ 59,057	$ 62,672	$ 67,518
Current period provision	5,538	3,167	11,397	5,117
Charge-offs	(4,840)	(3,952)	(17,569)	(20,780)
Recoveries	1,767	2,275	6,746	8,692
Balance at the end of the period	63,246	60,547	63,246	60,547
Personal Banking
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		14,581		16,249
Current period provision		3,260		5,789
Charge-offs		(2,799)		(7,995)
Recoveries		534		1,533
Balance at the end of the period		15,576		15,576
Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		4,892		5,581
Current period provision		(14)		(220)
Charge-offs		(342)		(955)
Recoveries		51		181
Balance at the end of the period		4,587		4,587
Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		3,445		4,550
Current period provision		274		(126)
Charge-offs		(443)		(1,327)
Recoveries		95		274
Balance at the end of the period		3,371		3,371
Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		6,244		6,118
Current period provision		3,000		6,135
Charge-offs		(2,014)		(5,713)
Recoveries		388		1,078
Balance at the end of the period		7,618		7,618
Commercial Banking
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		44,476		46,904
Current period provision		(93)		3,693
Charge-offs		(1,153)		(12,785)
Recoveries		1,741		7,159
Balance at the end of the period		44,971		44,971
Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		30,163		33,389
Current period provision		111		(1,205)
Charge-offs		(558)		(5,110)
Recoveries		1,113		3,755
Balance at the end of the period		30,829		30,829
Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period		14,313		13,515
Current period provision		(204)		4,898
Charge-offs		(595)		(7,675)
Recoveries		628		3,404
Balance at the end of the period		14,142		14,142
Unallocated
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period				4,365
Current period provision				(4,365)
Charge-offs				0
Recoveries				0
Balance at the end of the period		$ 0		$ 0
Originated
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	55,323		60,970
Current period provision	5,377		5,485
Charge-offs	(4,274)		(14,172)
Recoveries	1,598		5,741
Balance at the end of the period	58,024		58,024
Originated | Personal Banking
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	14,281		16,121
Current period provision	4,750		9,233
Charge-offs	(2,964)		(10,365)
Recoveries	550		1,628
Balance at the end of the period	16,617		16,617
Originated | Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	3,022		4,692
Current period provision	1,109		1,612
Charge-offs	(268)		(2,559)
Recoveries	139		257
Balance at the end of the period	4,002		4,002
Originated | Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	3,335		3,941
Current period provision	296		253
Charge-offs	(161)		(898)
Recoveries	49		223
Balance at the end of the period	3,519		3,519
Originated | Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	7,924		7,488
Current period provision	3,345		7,368
Charge-offs	(2,535)		(6,908)
Recoveries	362		1,148
Balance at the end of the period	9,096		9,096
Originated | Commercial Banking
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	41,042		44,849
Current period provision	627		(3,748)
Charge-offs	(1,310)		(3,807)
Recoveries	1,048		4,113
Balance at the end of the period	41,407		41,407
Originated | Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	25,686		32,348
Current period provision	(1,041)		(8,756)
Charge-offs	(602)		(2,103)
Recoveries	487		3,041
Balance at the end of the period	24,530		24,530
Originated | Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	15,356		12,501
Current period provision	1,668		5,008
Charge-offs	(708)		(1,704)
Recoveries	561		1,072
Balance at the end of the period	16,877		16,877
Acquired
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	5,458		1,702
Current period provision	161		5,912
Charge-offs	(566)		(3,397)
Recoveries	169		1,005
Balance at the end of the period	5,222		5,222
Acquired | Personal Banking
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	1,741		229
Current period provision	395		3,136
Charge-offs	(379)		(2,059)
Recoveries	136		587
Balance at the end of the period	1,893		1,893
Acquired | Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	61		18
Current period provision	45		118
Charge-offs	(86)		(211)
Recoveries	58		153
Balance at the end of the period	78		78
Acquired | Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	1,128		101
Current period provision	138		2,093
Charge-offs	(127)		(1,320)
Recoveries	32		297
Balance at the end of the period	1,171		1,171
Acquired | Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	552		110
Current period provision	212		925
Charge-offs	(166)		(528)
Recoveries	46		137
Balance at the end of the period	644		644
Acquired | Commercial Banking
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	3,717		1,473
Current period provision	(234)		2,776
Charge-offs	(187)		(1,338)
Recoveries	33		418
Balance at the end of the period	3,329		3,329
Acquired | Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	3,165		1,439
Current period provision	(588)		1,886
Charge-offs	(187)		(1,314)
Recoveries	32		411
Balance at the end of the period	2,422		2,422
Acquired | Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Balance at the beginning of the period	552		34
Current period provision	354		890
Charge-offs	0		(24)
Recoveries	1		7
Balance at the end of the period	$ 907		$ 907

Loans receivable - Loan Portfol

Loans receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 7,798,566		$ 7,222,121
Allowance for loan losses	63,246		62,672
Nonaccrual loans	86,272		71,662
Loans past due 90 days or more and still accruing	103		1,334
TDRs	46,595	$ 49,113	51,115	$ 49,338	$ 56,184	$ 61,788
Allowance related to TDRs	4,697		4,682
Additional commitments to customers with loans classified as TDRs	300		320
Nonaccrual TDRs	17,374		21,100	$ 23,184
Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	4,796,630		4,448,287
Allowance for loan losses	18,510		16,350
Nonaccrual loans	30,298		30,746
Loans past due 90 days or more and still accruing	95		980
TDRs	9,136		8,658
Allowance related to TDRs	1,206		1,794
Additional commitments to customers with loans classified as TDRs	3		0
Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	2,819,013		2,740,892
Allowance for loan losses	4,080		4,710
Nonaccrual loans	17,919		19,772
Loans past due 90 days or more and still accruing	0		4
TDRs	7,174		6,360
Allowance related to TDRs	735		1,189
Additional commitments to customers with loans classified as TDRs	0		0
Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,349,105		1,187,106
Allowance for loan losses	4,690		4,042
Nonaccrual loans	8,100		7,522
Loans past due 90 days or more and still accruing	0		0
TDRs	1,962		2,298
Allowance related to TDRs	471		605
Additional commitments to customers with loans classified as TDRs	3		0
Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	628,512		520,289
Allowance for loan losses	9,740		7,598
Nonaccrual loans	4,279		3,452
Loans past due 90 days or more and still accruing	95		976
TDRs	0		0
Allowance related to TDRs	0		0
Additional commitments to customers with loans classified as TDRs	0		0
Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	3,001,936		2,773,834
Allowance for loan losses	44,736		46,322
Nonaccrual loans	55,974		40,916
Loans past due 90 days or more and still accruing	8		354
TDRs	37,459		42,457
Allowance related to TDRs	3,491		2,888
Additional commitments to customers with loans classified as TDRs	297		320
Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	2,464,681		2,351,434
Allowance for loan losses	26,952		33,787
Nonaccrual loans	42,066		33,421
Loans past due 90 days or more and still accruing	0		206
TDRs	26,435		31,970
Allowance related to TDRs	2,038		2,257
Additional commitments to customers with loans classified as TDRs	280		241
Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	537,255		422,400
Allowance for loan losses	17,784		12,535
Nonaccrual loans	13,908		7,495
Loans past due 90 days or more and still accruing	8		148
TDRs	11,024		10,487
Allowance related to TDRs	1,453		631
Additional commitments to customers with loans classified as TDRs	$ 17		$ 79

Loans receivable - Geographical

Loans receivable - Geographical and Delinquency Information (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 7,798,566	$ 7,222,121
Percentage of total loans receivable	100.00%	100.00%
Delinquent loans	$ 86,637	$ 135,228
90 days or greater delinquent and accruing	2,923	3,750
90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 53,654	$ 47,018
Percentage of total loans 90 or more days delinquent	100.00%	100.00%
Personal Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 4,796,630	$ 4,448,287
Personal Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	22,872	25,388
Personal Banking | Residential mortgage loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	2,819,013	2,740,892
Personal Banking | Residential mortgage loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	13,478	16,350
Personal Banking | Home equity loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	1,349,105	1,187,106
Personal Banking | Home equity loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	6,022	6,112
Personal Banking | Consumer loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	628,512	520,289
Personal Banking | Consumer loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	3,372	2,926
Commercial Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	3,001,936	2,773,834
Commercial Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	30,782	21,630
Commercial Banking | Commercial real estate loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	2,464,681	2,351,434
Commercial Banking | Commercial real estate loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	24,533	19,031
Commercial Banking | Commercial loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	537,255	422,400
Commercial Banking | Commercial loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	6,249	2,599
Pennsylvania
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 4,746,666	$ 4,700,178
Percentage of total loans receivable	60.90%	65.10%
Pennsylvania | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 27,665	$ 29,003
Percentage of total loans 90 or more days delinquent	51.50%	61.60%
Pennsylvania | Personal Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 3,412,780	$ 3,450,477
Pennsylvania | Personal Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	15,395	16,982
Pennsylvania | Personal Banking | Residential mortgage loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	2,285,555	2,310,860
Pennsylvania | Personal Banking | Residential mortgage loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	9,380	10,998
Pennsylvania | Personal Banking | Home equity loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	858,767	879,447
Pennsylvania | Personal Banking | Home equity loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	3,064	3,204
Pennsylvania | Personal Banking | Consumer loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	268,458	260,170
Pennsylvania | Personal Banking | Consumer loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	2,951	2,780
Pennsylvania | Commercial Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	1,333,886	1,249,701
Pennsylvania | Commercial Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	12,270	12,021
Pennsylvania | Commercial Banking | Commercial real estate loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	967,962	965,090
Pennsylvania | Commercial Banking | Commercial real estate loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	7,209	10,439
Pennsylvania | Commercial Banking | Commercial loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	365,924	284,611
Pennsylvania | Commercial Banking | Commercial loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	5,061	1,582
New York
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 1,612,863	$ 1,111,180
Percentage of total loans receivable	20.60%	15.40%
New York | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 5,622	$ 6,401
Percentage of total loans 90 or more days delinquent	10.50%	13.60%
New York | Personal Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 641,800	$ 308,325
New York | Personal Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	2,788	2,530
New York | Personal Banking | Residential mortgage loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	286,147	171,790
New York | Personal Banking | Residential mortgage loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	1,627	1,801
New York | Personal Banking | Home equity loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	284,095	124,291
New York | Personal Banking | Home equity loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	1,039	639
New York | Personal Banking | Consumer loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	71,558	12,244
New York | Personal Banking | Consumer loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	122	90
New York | Commercial Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	971,063	802,855
New York | Commercial Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	2,834	3,871
New York | Commercial Banking | Commercial real estate loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	875,066	749,435
New York | Commercial Banking | Commercial real estate loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	2,697	3,012
New York | Commercial Banking | Commercial loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	95,997	53,420
New York | Commercial Banking | Commercial loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	137	859
Ohio
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 854,317	$ 847,753
Percentage of total loans receivable	11.00%	11.70%
Ohio | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 11,497	$ 7,607
Percentage of total loans 90 or more days delinquent	21.40%	16.20%
Ohio | Personal Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 334,491	$ 326,246
Ohio | Personal Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	2,294	2,626
Ohio | Personal Banking | Residential mortgage loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	70,507	70,209
Ohio | Personal Banking | Residential mortgage loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	831	1,308
Ohio | Personal Banking | Home equity loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	146,040	154,003
Ohio | Personal Banking | Home equity loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	1,405	1,294
Ohio | Personal Banking | Consumer loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	117,944	102,034
Ohio | Personal Banking | Consumer loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	58	24
Ohio | Commercial Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	519,826	521,507
Ohio | Commercial Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	9,203	4,981
Ohio | Commercial Banking | Commercial real estate loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	464,068	453,180
Ohio | Commercial Banking | Commercial real estate loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	8,261	4,823
Ohio | Commercial Banking | Commercial loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	55,758	68,327
Ohio | Commercial Banking | Commercial loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	942	158
Maryland
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 266,361	$ 283,894
Percentage of total loans receivable	3.40%	3.90%
Maryland | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 1,917	$ 2,567
Percentage of total loans 90 or more days delinquent	3.60%	5.50%
Maryland | Personal Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 145,722	$ 155,457
Maryland | Personal Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	1,698	2,316
Maryland | Personal Banking | Residential mortgage loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	121,013	129,129
Maryland | Personal Banking | Residential mortgage loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	1,229	1,341
Maryland | Personal Banking | Home equity loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	22,713	24,458
Maryland | Personal Banking | Home equity loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	469	975
Maryland | Personal Banking | Consumer loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	1,996	1,870
Maryland | Personal Banking | Consumer loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	0	0
Maryland | Commercial Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	120,639	128,437
Maryland | Commercial Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	219	251
Maryland | Commercial Banking | Commercial real estate loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	113,605	122,775
Maryland | Commercial Banking | Commercial real estate loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	110	251
Maryland | Commercial Banking | Commercial loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	7,034	5,662
Maryland | Commercial Banking | Commercial loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	109	0
Other
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 318,359	$ 279,116
Percentage of total loans receivable	4.10%	3.90%
Other | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 6,953	$ 1,440
Percentage of total loans 90 or more days delinquent	13.00%	3.10%
Other | Personal Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	$ 261,837	$ 207,782
Other | Personal Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	697	934
Other | Personal Banking | Residential mortgage loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	55,791	58,904
Other | Personal Banking | Residential mortgage loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	411	902
Other | Personal Banking | Home equity loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	37,490	4,907
Other | Personal Banking | Home equity loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	45	0
Other | Personal Banking | Consumer loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	168,556	143,971
Other | Personal Banking | Consumer loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	241	32
Other | Commercial Banking
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	56,522	71,334
Other | Commercial Banking | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	6,256	506
Other | Commercial Banking | Commercial real estate loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	43,980	60,954
Other | Commercial Banking | Commercial real estate loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	6,256	506
Other | Commercial Banking | Commercial loans
Loans receivable and Loans 90 days or more delinquent
Recorded investment in loans receivable	12,542	10,380
Other | Commercial Banking | Commercial loans | 90 Days or greater delinquent
Loans receivable and Loans 90 days or more delinquent
Delinquent loans	$ 0	$ 0

Loans receivable - Compositio49

Loans receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	$ 86,272	$ 71,662
Total impaired loans	116,372	117,851
Average recorded investment in impaired loans	121,458	130,528
Interest income recognized on impaired loans	4,294	5,462
Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	30,298	30,746
Total impaired loans	38,104	37,679
Average recorded investment in impaired loans	36,878	37,175
Interest income recognized on impaired loans	1,303	1,542
Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	17,919	19,772
Total impaired loans	24,249	24,858
Average recorded investment in impaired loans	24,401	24,554
Interest income recognized on impaired loans	819	944
Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	8,100	7,522
Total impaired loans	9,576	9,369
Average recorded investment in impaired loans	9,155	9,644
Interest income recognized on impaired loans	368	497
Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	4,279	3,452
Total impaired loans	4,279	3,452
Average recorded investment in impaired loans	3,322	2,977
Interest income recognized on impaired loans	116	101
Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	55,974	40,916
Total impaired loans	78,268	80,172
Average recorded investment in impaired loans	84,580	93,353
Interest income recognized on impaired loans	2,991	3,920
Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	42,066	33,421
Total impaired loans	57,833	66,009
Average recorded investment in impaired loans	67,422	77,166
Interest income recognized on impaired loans	2,258	3,226
Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	13,908	7,495
Total impaired loans	20,435	14,163
Average recorded investment in impaired loans	17,158	16,187
Interest income recognized on impaired loans	733	694
90 Days or greater delinquent
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	50,730	43,268
90 Days or greater delinquent | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	22,470	24,360
90 Days or greater delinquent | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	13,242	15,810
90 Days or greater delinquent | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	5,874	5,650
90 Days or greater delinquent | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	3,354	2,900
90 Days or greater delinquent | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	28,260	18,908
90 Days or greater delinquent | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	22,155	16,449
90 Days or greater delinquent | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	6,105	2,459
Less than 90 days delinquent
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	35,542	28,394
Loans less than 90 days delinquent reviewed for impairment	7,731	18,135
TDRs less than 90 days delinquent not included elsewhere	22,369	28,054
Less than 90 days delinquent | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	7,828	6,386
Loans less than 90 days delinquent reviewed for impairment	0	0
TDRs less than 90 days delinquent not included elsewhere	7,806	6,933
Less than 90 days delinquent | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	4,677	3,962
Loans less than 90 days delinquent reviewed for impairment	0	0
TDRs less than 90 days delinquent not included elsewhere	6,330	5,086
Less than 90 days delinquent | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	2,226	1,872
Loans less than 90 days delinquent reviewed for impairment	0	0
TDRs less than 90 days delinquent not included elsewhere	1,476	1,847
Less than 90 days delinquent | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	925	552
Loans less than 90 days delinquent reviewed for impairment	0	0
TDRs less than 90 days delinquent not included elsewhere	0	0
Less than 90 days delinquent | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	27,714	22,008
Loans less than 90 days delinquent reviewed for impairment	7,731	18,135
TDRs less than 90 days delinquent not included elsewhere	14,563	21,121
Less than 90 days delinquent | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	19,911	16,972
Loans less than 90 days delinquent reviewed for impairment	4,838	16,121
TDRs less than 90 days delinquent not included elsewhere	10,929	16,467
Less than 90 days delinquent | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	7,803	5,036
Loans less than 90 days delinquent reviewed for impairment	2,893	2,014
TDRs less than 90 days delinquent not included elsewhere	$ 3,634	$ 4,654

Loans receivable - Evaluation o

Loans receivable - Evaluation of Impaired Loans by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	$ 7,736,075	$ 7,147,649
Loans individually evaluated for impairment	62,491	74,472
Loans individually evaluated for impairment for which there is a related impairment reserve	54,889	53,189
Related impairment reserve	6,372	5,008
Loans individually evaluated for impairment for which there is no related reserve	7,602	21,283
Personal Banking
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	4,786,577	4,438,708
Loans individually evaluated for impairment	10,053	9,579
Loans individually evaluated for impairment for which there is a related impairment reserve	10,053	9,579
Related impairment reserve	1,223	1,844
Loans individually evaluated for impairment for which there is no related reserve	0	0
Personal Banking | Residential mortgage loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	2,810,996	2,733,741
Loans individually evaluated for impairment	8,017	7,151
Loans individually evaluated for impairment for which there is a related impairment reserve	8,017	7,151
Related impairment reserve	735	1,189
Loans individually evaluated for impairment for which there is no related reserve	0	0
Personal Banking | Home equity loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	1,347,143	1,184,808
Loans individually evaluated for impairment	1,962	2,298
Loans individually evaluated for impairment for which there is a related impairment reserve	1,962	2,298
Related impairment reserve	471	605
Loans individually evaluated for impairment for which there is no related reserve	0	0
Personal Banking | Consumer loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	628,438	520,159
Loans individually evaluated for impairment	74	130
Loans individually evaluated for impairment for which there is a related impairment reserve	74	130
Related impairment reserve	17	50
Loans individually evaluated for impairment for which there is no related reserve	0	0
Commercial Banking
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	2,949,498	2,708,941
Loans individually evaluated for impairment	52,438	64,893
Loans individually evaluated for impairment for which there is a related impairment reserve	44,836	43,610
Related impairment reserve	5,149	3,164
Loans individually evaluated for impairment for which there is no related reserve	7,602	21,283
Commercial Banking | Commercial real estate loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	2,424,492	2,297,599
Loans individually evaluated for impairment	40,189	53,835
Loans individually evaluated for impairment for which there is a related impairment reserve	32,587	35,937
Related impairment reserve	3,636	2,675
Loans individually evaluated for impairment for which there is no related reserve	7,602	17,898
Commercial Banking | Commercial loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	525,006	411,342
Loans individually evaluated for impairment	12,249	11,058
Loans individually evaluated for impairment for which there is a related impairment reserve	12,249	7,673
Related impairment reserve	1,513	489
Loans individually evaluated for impairment for which there is no related reserve	$ 0	$ 3,385

Loans receivable - Roll Forward

Loans receivable - Roll Forward of Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)contract	Sep. 30, 2015USD ($)contract	Sep. 30, 2016USD ($)contract	Sep. 30, 2015USD ($)contract	Dec. 31, 2015USD ($)
Number of contracts
Beginning balance | contract	230	231	227	248
Number of contracts new TDRs | contract	5	5	23	11
Number of re-modified TDRs | contract	1	1	5	3
Ending balance | contract	218	224	218	224
Amount
Beginning TDR balance	$ 49,113	$ 56,184	$ 51,115	$ 61,788
New TDRs	245	2,273	5,256	2,772
Re-modified TDRs	799	6,316	1,862	6,446
Net paydowns	(1,781)	(7,096)	(4,685)	(11,537)
Ending TDR balance	46,595	49,338	46,595	49,338
Accruing TDRs	29,221	26,154	29,221	26,154
Non-accrual TDRs	$ 17,374	$ 23,184	$ 17,374	$ 23,184	$ 21,100
Residential mortgage loans
Number of contracts
Number of contracts charged off | contract	0	0	0	0
Number of contracts paid off | contract	3	0	3	1
Amount
Amount of contracts charged off	$ 0	$ 0	$ 0	$ 0
Amount of contracts paid off	$ (143)	$ 0	$ (143)	$ (53)
Home equity loans
Number of contracts
Number of contracts charged off | contract	0	1	0	4
Number of contracts paid off | contract	2	2	5	3
Amount
Amount of contracts charged off	$ 0	$ (60)	$ 0	$ (159)
Amount of contracts paid off	$ (264)	$ (75)	$ (496)	$ (81)
Commercial real estate loans
Number of contracts
Number of contracts charged off | contract	0	1	0	3
Number of contracts paid off | contract	8	6	16	14
Amount
Amount of contracts charged off	$ 0	$ (5)	$ 0	$ (28)
Amount of contracts paid off	$ (1,022)	$ (8,122)	$ (5,584)	$ (9,127)
Commercial loans
Number of contracts
Number of contracts charged off | contract	1	0	2	2
Number of contracts paid off | contract	3	2	6	8
Amount
Amount of contracts charged off	$ (99)	$ 0	$ (142)	$ (387)
Amount of contracts paid off	$ (253)	$ (77)	$ (588)	$ (296)

Loans receivable - Troubled Deb

Loans receivable - Troubled Debt Restructuring (Including Re-Modified TDRs) by Portfolio Segment and by Class of Financing Receivable (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)contract	Sep. 30, 2015USD ($)contract	Sep. 30, 2016USD ($)contract	Sep. 30, 2015USD ($)contract
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	6	6	28	14
Recorded investment at the time of modification	$ 1,044	$ 8,589	$ 7,118	$ 9,218
Current recorded investment	1,041	8,536	6,121	9,148
Current allowance	$ 77	$ 983	$ 1,092	$ 1,029
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	1	0	0	2
Recorded investment at the time of modification	$ 6,256	$ 0	$ 0	$ 274
Current recorded investment	6,113	0	0	269
Current allowance	$ 893	$ 0	$ 0	$ 0
Personal Banking
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	2	0	12	6
Recorded investment at the time of modification	$ 12	$ 0	$ 1,325	$ 319
Current recorded investment	11	0	1,312	313
Current allowance	$ 2	$ 0	$ 165	$ 17
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	0	0	0	2
Recorded investment at the time of modification	$ 0	$ 0	$ 0	$ 274
Current recorded investment	0	0	0	269
Current allowance	$ 0	$ 0	$ 0	$ 0
Personal Banking | Residential mortgage loans
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	1	0	6	4
Recorded investment at the time of modification	$ 9	$ 0	$ 1,041	$ 232
Current recorded investment	8	0	1,031	228
Current allowance	$ 1	$ 0	$ 105	$ 0
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	0	0	0	1
Recorded investment at the time of modification	$ 0	$ 0	$ 0	$ 251
Current recorded investment	0	0	0	249
Current allowance	$ 0	$ 0	$ 0	$ 0
Personal Banking | Home equity loans
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	1	0	6	2
Recorded investment at the time of modification	$ 3	$ 0	$ 284	$ 87
Current recorded investment	3	0	281	85
Current allowance	$ 1	$ 0	$ 60	$ 17
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	0	0	0	1
Recorded investment at the time of modification	$ 0	$ 0	$ 0	$ 23
Current recorded investment	0	0	0	20
Current allowance	$ 0	$ 0	$ 0	$ 0
Personal Banking | Consumer loans
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	0	0	0	0
Recorded investment at the time of modification	$ 0	$ 0	$ 0	$ 0
Current recorded investment	0	0	0	0
Current allowance	$ 0	$ 0	$ 0	$ 0
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	0	0	0	0
Recorded investment at the time of modification	$ 0	$ 0	$ 0	$ 0
Current recorded investment	0	0	0	0
Current allowance	$ 0	$ 0	$ 0	$ 0
Commercial Banking
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	4	6	16	8
Recorded investment at the time of modification	$ 1,032	$ 8,589	$ 5,793	$ 8,899
Current recorded investment	1,030	8,536	4,809	8,835
Current allowance	$ 75	$ 983	$ 927	$ 1,012
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	1	0	0	0
Recorded investment at the time of modification	$ 6,256	$ 0	$ 0	$ 0
Current recorded investment	6,113	0	0	0
Current allowance	$ 893	$ 0	$ 0	$ 0
Commercial Banking | Commercial real estate loans
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	1	5	5	6
Recorded investment at the time of modification	$ 154	$ 8,563	$ 2,250	$ 8,575
Current recorded investment	153	8,511	2,218	8,522
Current allowance	$ 11	$ 980	$ 295	$ 981
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	1	0	0	0
Recorded investment at the time of modification	$ 6,256	$ 0	$ 0	$ 0
Current recorded investment	6,113	0	0	0
Current allowance	$ 893	$ 0	$ 0	$ 0
Commercial Banking | Commercial loans
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	3	1	11	2
Recorded investment at the time of modification	$ 878	$ 26	$ 3,543	$ 324
Current recorded investment	877	25	2,591	313
Current allowance	$ 64	$ 3	$ 632	$ 31
Troubled debt restructurings that subsequently defaulted:
Number of contracts | contract	0	0	0	0
Recorded investment at the time of modification	$ 0	$ 0	$ 0	$ 0
Current recorded investment	0	0	0	0
Current allowance	$ 0	$ 0	$ 0	$ 0

Loans receivable - Troubled D53

Loans receivable - Troubled Debt Restructurings by Type of Modification (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)contract	Sep. 30, 2015USD ($)contract	Sep. 30, 2016USD ($)contract	Sep. 30, 2015USD ($)contract
Troubled debt restructurings
Number of contracts | contract	6	6	28	14
Troubled debt restructurings	$ 1,041	$ 8,536	$ 6,121	$ 9,148
Number of re-modified TDRs | contract	1	1	5	3
Re-modified troubled debt restructurings	$ 799	$ 6,270	$ 1,844	$ 6,398
Rate
Troubled debt restructurings
Troubled debt restructurings	0	180	482	336
Re-modified troubled debt restructurings	0	0	0	83
Payment
Troubled debt restructurings
Troubled debt restructurings	799	0	1,228	0
Re-modified troubled debt restructurings	799	0	1,662	0
Maturity date
Troubled debt restructurings
Troubled debt restructurings	242	8,356	2,202	8,767
Re-modified troubled debt restructurings	0	6,270	0	6,270
Other
Troubled debt restructurings
Troubled debt restructurings	0	0	2,209	45
Re-modified troubled debt restructurings	$ 0	$ 0	$ 182	$ 45
Personal Banking
Troubled debt restructurings
Number of contracts | contract	2	0	12	6
Troubled debt restructurings	$ 11	$ 0	$ 1,312	$ 313
Number of re-modified TDRs | contract	0	0	0	2
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 128
Personal Banking | Rate
Troubled debt restructurings
Troubled debt restructurings	0	0	482	156
Re-modified troubled debt restructurings	0	0	0	83
Personal Banking | Payment
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Maturity date
Troubled debt restructurings
Troubled debt restructurings	11	0	625	112
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	205	45
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 45
Personal Banking | Residential mortgage loans
Troubled debt restructurings
Number of contracts | contract	1	0	6	4
Troubled debt restructurings	$ 8	$ 0	$ 1,031	$ 228
Number of re-modified TDRs | contract	0	0	0	1
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 45
Personal Banking | Residential mortgage loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0	0	361	73
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Residential mortgage loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Residential mortgage loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	8	0	622	110
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Residential mortgage loans | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	48	45
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 45
Personal Banking | Home equity loans
Troubled debt restructurings
Number of contracts | contract	1	0	6	2
Troubled debt restructurings	$ 3	$ 0	$ 281	$ 85
Number of re-modified TDRs | contract	0	0	0	1
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 83
Personal Banking | Home equity loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0	0	121	83
Re-modified troubled debt restructurings	0	0	0	83
Personal Banking | Home equity loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Home equity loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	3	0	3	2
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Home equity loans | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	157	0
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 0
Personal Banking | Consumer loans
Troubled debt restructurings
Number of contracts | contract	0	0	0	0
Troubled debt restructurings	$ 0	$ 0	$ 0	$ 0
Number of re-modified TDRs | contract	0	0	0	0
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 0
Personal Banking | Consumer loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Consumer loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Consumer loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Personal Banking | Consumer loans | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 0
Commercial Banking
Troubled debt restructurings
Number of contracts | contract	4	6	16	8
Troubled debt restructurings	$ 1,030	$ 8,536	$ 4,809	$ 8,835
Number of re-modified TDRs | contract	1	1	5	1
Re-modified troubled debt restructurings	$ 799	$ 6,270	$ 1,844	$ 6,270
Commercial Banking | Rate
Troubled debt restructurings
Troubled debt restructurings	0	180	0	180
Re-modified troubled debt restructurings	0	0	0	0
Commercial Banking | Payment
Troubled debt restructurings
Troubled debt restructurings	799	0	1,228	0
Re-modified troubled debt restructurings	799	0	1,662	0
Commercial Banking | Maturity date
Troubled debt restructurings
Troubled debt restructurings	231	8,356	1,577	8,655
Re-modified troubled debt restructurings	0	6,270	0	6,270
Commercial Banking | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	2,004	0
Re-modified troubled debt restructurings	$ 0	$ 0	$ 182	$ 0
Commercial Banking | Commercial real estate loans
Troubled debt restructurings
Number of contracts | contract	1	5	5	6
Troubled debt restructurings	$ 153	$ 8,511	$ 2,218	$ 8,522
Number of re-modified TDRs | contract	0	1	1	1
Re-modified troubled debt restructurings	$ 0	$ 6,270	$ 182	$ 6,270
Commercial Banking | Commercial real estate loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0	180	0	180
Re-modified troubled debt restructurings	0	0	0	0
Commercial Banking | Commercial real estate loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0	0	429	0
Re-modified troubled debt restructurings	0	0	0	0
Commercial Banking | Commercial real estate loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	153	8,331	535	8,342
Re-modified troubled debt restructurings	0	6,270	0	6,270
Commercial Banking | Commercial real estate loans | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	1,254	0
Re-modified troubled debt restructurings	$ 0	$ 0	$ 182	$ 0
Commercial Banking | Commercial loans
Troubled debt restructurings
Number of contracts | contract	3	1	11	2
Troubled debt restructurings	$ 877	$ 25	$ 2,591	$ 313
Number of re-modified TDRs | contract	1	0	4	0
Re-modified troubled debt restructurings	$ 799	$ 0	$ 1,662	$ 0
Commercial Banking | Commercial loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0	0	0	0
Re-modified troubled debt restructurings	0	0	0	0
Commercial Banking | Commercial loans | Payment
Troubled debt restructurings
Troubled debt restructurings	799	0	799	0
Re-modified troubled debt restructurings	799	0	1,662	0
Commercial Banking | Commercial loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	78	25	1,042	313
Re-modified troubled debt restructurings	0	0	0	0
Commercial Banking | Commercial loans | Other
Troubled debt restructurings
Troubled debt restructurings	0	0	750	0
Re-modified troubled debt restructurings	$ 0	$ 0	$ 0	$ 0

Loans receivable - Loan Delinqu

Loans receivable - Loan Delinquencies (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Loan payment delinquencies
Total delinquency	$ 86,637	$ 135,228
Current	7,711,929	7,086,893
Total loans	7,798,566	7,222,121
90 days or greater delinquent and accruing	2,923	3,750
30-59 Days delinquent
Loan payment delinquencies
Total delinquency	21,295	66,595
60-89 Days delinquent
Loan payment delinquencies
Total delinquency	11,688	21,615
90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	53,654	47,018
Personal Banking
Loan payment delinquencies
Total loans	4,796,630	4,448,287
Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total loans	2,819,013	2,740,892
Personal Banking | Home equity loans
Loan payment delinquencies
Total loans	1,349,105	1,187,106
Personal Banking | Consumer loans
Loan payment delinquencies
Total loans	628,512	520,289
Personal Banking | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	22,872	25,388
Personal Banking | 90 Days or greater delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	13,478	16,350
Personal Banking | 90 Days or greater delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	6,022	6,112
Personal Banking | 90 Days or greater delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	3,372	2,926
Commercial Banking
Loan payment delinquencies
Total loans	3,001,936	2,773,834
Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total loans	2,464,681	2,351,434
Commercial Banking | Commercial loans
Loan payment delinquencies
Total loans	537,255	422,400
Commercial Banking | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	30,782	21,630
Commercial Banking | 90 Days or greater delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	24,533	19,031
Commercial Banking | 90 Days or greater delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	6,249	2,599
Originated
Loan payment delinquencies
Total delinquency	71,337	120,633
Current	6,580,688	6,244,648
Total loans	6,652,025	6,365,281
90 days or greater delinquent and accruing	0	0
Originated | 30-59 Days delinquent
Loan payment delinquencies
Total delinquency	18,719	60,380
Originated | 60-89 Days delinquent
Loan payment delinquencies
Total delinquency	9,776	19,190
Originated | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	42,842	41,063
Originated | Personal Banking
Loan payment delinquencies
Total delinquency	43,698	71,854
Current	4,106,451	3,996,862
Total loans	4,150,149	4,068,716
90 days or greater delinquent and accruing	0	0
Originated | Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total delinquency	21,745	48,608
Current	2,654,908	2,646,568
Total loans	2,676,653	2,695,176
90 days or greater delinquent and accruing	0	0
Originated | Personal Banking | Home equity loans
Loan payment delinquencies
Total delinquency	9,857	11,957
Current	1,019,125	1,043,950
Total loans	1,028,982	1,055,907
90 days or greater delinquent and accruing	0	0
Originated | Personal Banking | Consumer loans
Loan payment delinquencies
Total delinquency	12,096	11,289
Current	432,418	306,344
Total loans	444,514	317,633
90 days or greater delinquent and accruing	0	0
Originated | Personal Banking | 30-59 Days delinquent
Loan payment delinquencies
Total delinquency	14,017	36,465
Originated | Personal Banking | 30-59 Days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	3,322	25,503
Originated | Personal Banking | 30-59 Days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	4,130	4,870
Originated | Personal Banking | 30-59 Days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	6,565	6,092
Originated | Personal Banking | 60-89 Days delinquent
Loan payment delinquencies
Total delinquency	8,846	11,717
Originated | Personal Banking | 60-89 Days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	5,568	7,541
Originated | Personal Banking | 60-89 Days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	910	1,836
Originated | Personal Banking | 60-89 Days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	2,368	2,340
Originated | Personal Banking | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	20,835	23,672
Originated | Personal Banking | 90 Days or greater delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	12,855	15,564
Originated | Personal Banking | 90 Days or greater delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	4,817	5,251
Originated | Personal Banking | 90 Days or greater delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	3,163	2,857
Originated | Commercial Banking
Loan payment delinquencies
Total delinquency	27,639	48,779
Current	2,474,237	2,247,786
Total loans	2,501,876	2,296,565
90 days or greater delinquent and accruing	0	0
Originated | Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total delinquency	20,617	44,029
Current	2,025,146	1,891,128
Total loans	2,045,763	1,935,157
90 days or greater delinquent and accruing	0	0
Originated | Commercial Banking | Commercial loans
Loan payment delinquencies
Total delinquency	7,022	4,750
Current	449,091	356,658
Total loans	456,113	361,408
90 days or greater delinquent and accruing	0	0
Originated | Commercial Banking | 30-59 Days delinquent
Loan payment delinquencies
Total delinquency	4,702	23,915
Originated | Commercial Banking | 30-59 Days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	3,432	22,212
Originated | Commercial Banking | 30-59 Days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	1,270	1,703
Originated | Commercial Banking | 60-89 Days delinquent
Loan payment delinquencies
Total delinquency	930	7,473
Originated | Commercial Banking | 60-89 Days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	487	6,875
Originated | Commercial Banking | 60-89 Days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	443	598
Originated | Commercial Banking | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	22,007	17,391
Originated | Commercial Banking | 90 Days or greater delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	16,698	14,942
Originated | Commercial Banking | 90 Days or greater delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	5,309	2,449
Acquired
Loan payment delinquencies
Total delinquency	15,300	14,595
Current	1,131,241	842,245
Total loans	1,146,541	856,840
90 days or greater delinquent and accruing	2,923	3,750
Acquired | 30-59 Days delinquent
Loan payment delinquencies
Total delinquency	2,576	6,215
Acquired | 60-89 Days delinquent
Loan payment delinquencies
Total delinquency	1,912	2,425
Acquired | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	10,812	5,955
Acquired | Personal Banking
Loan payment delinquencies
Total delinquency	5,113	5,173
Current	641,368	374,398
Total loans	646,481	379,571
90 days or greater delinquent and accruing	401	1,028
Acquired | Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total delinquency	1,287	1,475
Current	141,073	44,241
Total loans	142,360	45,716
90 days or greater delinquent and accruing	235	540
Acquired | Personal Banking | Home equity loans
Loan payment delinquencies
Total delinquency	2,294	2,439
Current	317,829	128,760
Total loans	320,123	131,199
90 days or greater delinquent and accruing	148	462
Acquired | Personal Banking | Consumer loans
Loan payment delinquencies
Total delinquency	1,532	1,259
Current	182,466	201,397
Total loans	183,998	202,656
90 days or greater delinquent and accruing	18	26
Acquired | Personal Banking | 30-59 Days delinquent
Loan payment delinquencies
Total delinquency	1,930	2,385
Acquired | Personal Banking | 30-59 Days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	58	440
Acquired | Personal Banking | 30-59 Days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	854	936
Acquired | Personal Banking | 30-59 Days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	1,018	1,009
Acquired | Personal Banking | 60-89 Days delinquent
Loan payment delinquencies
Total delinquency	1,146	1,072
Acquired | Personal Banking | 60-89 Days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	606	249
Acquired | Personal Banking | 60-89 Days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	235	642
Acquired | Personal Banking | 60-89 Days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	305	181
Acquired | Personal Banking | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	2,037	1,716
Acquired | Personal Banking | 90 Days or greater delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	623	786
Acquired | Personal Banking | 90 Days or greater delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	1,205	861
Acquired | Personal Banking | 90 Days or greater delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	209	69
Acquired | Commercial Banking
Loan payment delinquencies
Total delinquency	10,187	9,422
Current	489,873	467,847
Total loans	500,060	477,269
90 days or greater delinquent and accruing	2,522	2,722
Acquired | Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total delinquency	8,873	8,107
Current	410,045	408,170
Total loans	418,918	416,277
90 days or greater delinquent and accruing	2,378	2,582
Acquired | Commercial Banking | Commercial loans
Loan payment delinquencies
Total delinquency	1,314	1,315
Current	79,828	59,677
Total loans	81,142	60,992
90 days or greater delinquent and accruing	144	140
Acquired | Commercial Banking | 30-59 Days delinquent
Loan payment delinquencies
Total delinquency	646	3,830
Acquired | Commercial Banking | 30-59 Days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	423	2,665
Acquired | Commercial Banking | 30-59 Days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	223	1,165
Acquired | Commercial Banking | 60-89 Days delinquent
Loan payment delinquencies
Total delinquency	766	1,353
Acquired | Commercial Banking | 60-89 Days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	615	1,353
Acquired | Commercial Banking | 60-89 Days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	151	0
Acquired | Commercial Banking | 90 Days or greater delinquent
Loan payment delinquencies
Total delinquency	8,775	4,239
Acquired | Commercial Banking | 90 Days or greater delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	7,835	4,089
Acquired | Commercial Banking | 90 Days or greater delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	$ 940	$ 150

Loans receivable - Credit Quali

Loans receivable - Credit Quality Indicators (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Credit quality indicators
Total loans	$ 7,798,566,000	$ 7,222,121,000
Pass
Credit quality indicators
Total loans	7,509,085,000	6,952,327,000
Special mention
Credit quality indicators
Total loans	76,470,000	77,120,000
Substandard
Credit quality indicators
Total loans	210,096,000	190,109,000
Doubtful
Credit quality indicators
Total loans	2,915,000	1,225,000
Loss
Credit quality indicators
Total loans	0	1,340,000
Special mention or substandard | Minimum
Credit quality indicators
Total loans	1,000,000
Personal Banking
Credit quality indicators
Total loans	4,796,630,000	4,448,287,000
Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans	2,819,013,000	2,740,892,000
Personal Banking | Home equity loans
Credit quality indicators
Total loans	1,349,105,000	1,187,106,000
Personal Banking | Consumer loans
Credit quality indicators
Total loans	628,512,000	520,289,000
Commercial Banking
Credit quality indicators
Total loans	3,001,936,000	2,773,834,000
Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans	2,464,681,000	2,351,434,000
Commercial Banking | Commercial loans
Credit quality indicators
Total loans	537,255,000	422,400,000
Originated
Credit quality indicators
Total loans	6,652,025,000	6,365,281,000
Originated | Pass
Credit quality indicators
Total loans	6,411,694,000	6,121,713,000
Originated | Special mention
Credit quality indicators
Total loans	57,148,000	69,541,000
Originated | Substandard
Credit quality indicators
Total loans	180,268,000	171,462,000
Originated | Doubtful
Credit quality indicators
Total loans	2,915,000	1,225,000
Originated | Loss
Credit quality indicators
Total loans	0	1,340,000
Originated | Personal Banking
Credit quality indicators
Total loans	4,150,149,000	4,068,716,000
Originated | Personal Banking | Pass
Credit quality indicators
Total loans	4,122,610,000	4,044,118,000
Originated | Personal Banking | Special mention
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Substandard
Credit quality indicators
Total loans	27,539,000	23,258,000
Originated | Personal Banking | Doubtful
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Loss
Credit quality indicators
Total loans	0	1,340,000
Originated | Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans	2,676,653,000	2,695,176,000
Originated | Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
Total loans	2,659,867,000	2,680,562,000
Originated | Personal Banking | Residential mortgage loans | Special mention
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
Total loans	16,786,000	13,274,000
Originated | Personal Banking | Residential mortgage loans | Doubtful
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Residential mortgage loans | Loss
Credit quality indicators
Total loans	0	1,340,000
Originated | Personal Banking | Home equity loans
Credit quality indicators
Total loans	1,028,982,000	1,055,907,000
Originated | Personal Banking | Home equity loans | Pass
Credit quality indicators
Total loans	1,021,191,000	1,048,397,000
Originated | Personal Banking | Home equity loans | Special mention
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Home equity loans | Substandard
Credit quality indicators
Total loans	7,791,000	7,510,000
Originated | Personal Banking | Home equity loans | Doubtful
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Home equity loans | Loss
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Consumer loans
Credit quality indicators
Total loans	444,514,000	317,633,000
Originated | Personal Banking | Consumer loans | Pass
Credit quality indicators
Total loans	441,552,000	315,159,000
Originated | Personal Banking | Consumer loans | Special mention
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Consumer loans | Substandard
Credit quality indicators
Total loans	2,962,000	2,474,000
Originated | Personal Banking | Consumer loans | Doubtful
Credit quality indicators
Total loans	0	0
Originated | Personal Banking | Consumer loans | Loss
Credit quality indicators
Total loans	0	0
Originated | Commercial Banking
Credit quality indicators
Total loans	2,501,876,000	2,296,565,000
Originated | Commercial Banking | Pass
Credit quality indicators
Total loans	2,289,084,000	2,077,595,000
Originated | Commercial Banking | Special mention
Credit quality indicators
Total loans	57,148,000	69,541,000
Originated | Commercial Banking | Substandard
Credit quality indicators
Total loans	152,729,000	148,204,000
Originated | Commercial Banking | Doubtful
Credit quality indicators
Total loans	2,915,000	1,225,000
Originated | Commercial Banking | Loss
Credit quality indicators
Total loans	0	0
Originated | Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans	2,045,763,000	1,935,157,000
Originated | Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
Total loans	1,884,719,000	1,778,140,000
Originated | Commercial Banking | Commercial real estate loans | Special mention
Credit quality indicators
Total loans	45,458,000	46,518,000
Originated | Commercial Banking | Commercial real estate loans | Substandard
Credit quality indicators
Total loans	115,572,000	110,384,000
Originated | Commercial Banking | Commercial real estate loans | Doubtful
Credit quality indicators
Total loans	14,000	115,000
Originated | Commercial Banking | Commercial real estate loans | Loss
Credit quality indicators
Total loans	0	0
Originated | Commercial Banking | Commercial loans
Credit quality indicators
Total loans	456,113,000	361,408,000
Originated | Commercial Banking | Commercial loans | Pass
Credit quality indicators
Total loans	404,365,000	299,455,000
Originated | Commercial Banking | Commercial loans | Special mention
Credit quality indicators
Total loans	11,690,000	23,023,000
Originated | Commercial Banking | Commercial loans | Substandard
Credit quality indicators
Total loans	37,157,000	37,820,000
Originated | Commercial Banking | Commercial loans | Doubtful
Credit quality indicators
Total loans	2,901,000	1,110,000
Originated | Commercial Banking | Commercial loans | Loss
Credit quality indicators
Total loans	0	0
Acquired
Credit quality indicators
Total loans	1,146,541,000	856,840,000
Acquired | Pass
Credit quality indicators
Total loans	1,097,391,000	830,614,000
Acquired | Special mention
Credit quality indicators
Total loans	19,322,000	7,579,000
Acquired | Substandard
Credit quality indicators
Total loans	29,828,000	18,647,000
Acquired | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Loss
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking
Credit quality indicators
Total loans	646,481,000	379,571,000
Acquired | Personal Banking | Pass
Credit quality indicators
Total loans	641,338,000	377,855,000
Acquired | Personal Banking | Special mention
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Substandard
Credit quality indicators
Total loans	5,143,000	1,716,000
Acquired | Personal Banking | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Loss
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans	142,360,000	45,716,000
Acquired | Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
Total loans	140,553,000	44,930,000
Acquired | Personal Banking | Residential mortgage loans | Special mention
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
Total loans	1,807,000	786,000
Acquired | Personal Banking | Residential mortgage loans | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Residential mortgage loans | Loss
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Home equity loans
Credit quality indicators
Total loans	320,123,000	131,199,000
Acquired | Personal Banking | Home equity loans | Pass
Credit quality indicators
Total loans	317,452,000	130,338,000
Acquired | Personal Banking | Home equity loans | Special mention
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Home equity loans | Substandard
Credit quality indicators
Total loans	2,671,000	861,000
Acquired | Personal Banking | Home equity loans | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Home equity loans | Loss
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Consumer loans
Credit quality indicators
Total loans	183,998,000	202,656,000
Acquired | Personal Banking | Consumer loans | Pass
Credit quality indicators
Total loans	183,333,000	202,587,000
Acquired | Personal Banking | Consumer loans | Special mention
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Consumer loans | Substandard
Credit quality indicators
Total loans	665,000	69,000
Acquired | Personal Banking | Consumer loans | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Personal Banking | Consumer loans | Loss
Credit quality indicators
Total loans	0	0
Acquired | Commercial Banking
Credit quality indicators
Total loans	500,060,000	477,269,000
Acquired | Commercial Banking | Pass
Credit quality indicators
Total loans	456,053,000	452,759,000
Acquired | Commercial Banking | Special mention
Credit quality indicators
Total loans	19,322,000	7,579,000
Acquired | Commercial Banking | Substandard
Credit quality indicators
Total loans	24,685,000	16,931,000
Acquired | Commercial Banking | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Commercial Banking | Loss
Credit quality indicators
Total loans	0	0
Acquired | Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans	418,918,000	416,277,000
Acquired | Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
Total loans	381,097,000	392,811,000
Acquired | Commercial Banking | Commercial real estate loans | Special mention
Credit quality indicators
Total loans	16,305,000	6,872,000
Acquired | Commercial Banking | Commercial real estate loans | Substandard
Credit quality indicators
Total loans	21,516,000	16,594,000
Acquired | Commercial Banking | Commercial real estate loans | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Commercial Banking | Commercial real estate loans | Loss
Credit quality indicators
Total loans	0	0
Acquired | Commercial Banking | Commercial loans
Credit quality indicators
Total loans	81,142,000	60,992,000
Acquired | Commercial Banking | Commercial loans | Pass
Credit quality indicators
Total loans	74,956,000	59,948,000
Acquired | Commercial Banking | Commercial loans | Special mention
Credit quality indicators
Total loans	3,017,000	707,000
Acquired | Commercial Banking | Commercial loans | Substandard
Credit quality indicators
Total loans	3,169,000	337,000
Acquired | Commercial Banking | Commercial loans | Doubtful
Credit quality indicators
Total loans	0	0
Acquired | Commercial Banking | Commercial loans | Loss
Credit quality indicators
Total loans	$ 0	$ 0

Goodwill and Other Intangible56

Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Amortizable intangible assets:
Amortization expense	$ 1,068	$ 422	$ 2,453	$ 959
Estimated amortization expense
For the year ending December 31, 2016	4,240		4,240
For the year ending December 31, 2017	6,655		6,655
For the year ending December 31, 2018	5,762		5,762
For the year ending December 31, 2019	4,869		4,869
For the year ending December 31, 2020	3,976		3,976
For the year ending December 31, 2021	3,170		3,170
Core Deposits
Amortizable intangible assets:
Intangible asset - gross	37,953		37,953		$ 30,578
Acquisitions			25,732		7,375
Less: accumulated amortization	(32,910)		(32,910)		(31,192)
Intangible asset - net	30,775		30,775		6,761
Customer and Contract
Amortizable intangible assets:
Intangible asset - gross	8,496		8,496		8,234
Acquisitions			1,640		262
Less: accumulated amortization	(7,010)		(7,010)		(6,275)
Intangible asset - net	$ 3,126		$ 3,126		$ 2,221

Goodwill and Other Intangible57

Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 261,736	$ 175,323
Goodwill acquired	45,975	86,413
Impairment losses	0	0
Balance at the end of the period	307,711	261,736
Community Banking
Changes in the carrying amount of goodwill
Balance at the beginning of the period	260,123	173,710
Goodwill acquired	45,975	86,413
Impairment losses	0	0
Balance at the end of the period	306,098	260,123
Consumer Finance
Changes in the carrying amount of goodwill
Balance at the beginning of the period	1,613	1,613
Goodwill acquired	0	0
Impairment losses	0	0
Balance at the end of the period	$ 1,613	$ 1,613

Guarantees (Details)

Guarantees (Details)	9 Months Ended
	Sep. 30, 2016USD ($)
Guarantees [Abstract]
Maximum potential amount of future payments	$ 33,700,000
Maximum potential amount of future payments fully collateralized	24,800,000
Liability recognized for the obligations	225,000
Recourse provisions for recovery of amounts from third parties	$ 0

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - Stock options - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Antidilutive securities excluded from the calculation of earnings per share
Average share price during the reporting period (in dollars per share)	$ 15.19	$ 12.76	$ 14.02	$ 12.33
Options excluded from the calculation of earnings per share (in shares)		534,482	710,423	1,712,746
Weighted average share price during the reporting period (in dollars per share)		$ 13.15	$ 14.15	$ 12.63

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Reported net income	$ 14,197	$ 12,872	$ 25,173	$ 44,347
Weighted average common shares outstanding (in shares)	99,602,535	95,256,807	99,224,565	92,822,720
Dilutive potential shares due to effect of stock options (in shares)	1,465,710	568,991	1,008,942	433,379
Total weighted average common shares and dilutive potential shares (in shares)	101,068,245	95,825,798	100,233,507	93,256,099
Basic earnings per share (in dollars per share)	$ 0.14	$ 0.14	$ 0.25	$ 0.48
Diluted earnings per share (in dollars per share)	$ 0.14	$ 0.13	$ 0.25	$ 0.48

Pension and Other Post-retire61

Pension and Other Post-retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Pension benefits
Components of net periodic benefit cost
Service cost	$ 1,374	$ 1,430	$ 4,122	$ 4,290
Interest cost	1,695	1,531	5,087	4,593
Expected return on plan assets	(2,474)	(2,593)	(7,423)	(7,779)
Amortization of prior service cost	(581)	(581)	(1,742)	(1,743)
Amortization of the net loss	927	925	2,782	2,775
Net periodic (benefit)/ cost	941	712	2,826	2,136
Pension benefits | Minimum
Components of net periodic benefit cost
Estimated contribution for the current year			4,000
Pension benefits | Maximum
Components of net periodic benefit cost
Estimated contribution for the current year			8,000
Other post-retirement benefits
Components of net periodic benefit cost
Service cost	0	0	0	0
Interest cost	18	14	53	44
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	0	0
Amortization of the net loss	22	15	67	45
Net periodic (benefit)/ cost	$ 40	$ 29	$ 120	$ 89

Disclosures About Fair Value 62

Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Significant unrealized appreciation or depreciation in financial instruments	$ 0	$ 0
Financial assets:
Securities available-for-sale	890,688,000	874,405,000
Securities held-to-maturity	23,249,000	32,552,000
Accrued interest receivable	21,591,000	21,072,000
Financial liabilities:
Borrowed funds	135,891,000	975,007,000
Junior subordinated debentures	111,213,000	111,213,000
Assets transferred between Level 1 and Level 2	0
Liabilities transferred between Level 1 and Level 2	0
Level 1
Financial assets:
Cash and cash equivalents	320,566,000	167,408,000
Securities available-for-sale	3,892,000	1,894,000
Securities held-to-maturity	0	0
Loans receivable, net	30,355,000	0
Accrued interest receivable	21,591,000	21,072,000
FHLB Stock	0	0
Total financial assets	376,404,000	190,374,000
Financial liabilities:
Savings and checking deposits	6,511,356,000	4,917,863,000
Time deposits	0	0
Borrowed funds	135,891,000	118,664,000
Junior subordinated debentures	0	0
Cash flow hedges - swaps	0	0
Accrued interest payable	682,000	1,993,000
Total financial liabilities	6,647,929,000	5,038,520,000
Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	877,567,000	863,556,000
Securities held-to-maturity	23,249,000	32,552,000
Loans receivable, net	0	0
Accrued interest receivable	0	0
FHLB Stock	0	0
Total financial assets	900,816,000	896,108,000
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	0	0
Borrowed funds	0	0
Junior subordinated debentures	0	0
Cash flow hedges - swaps	3,512,000	4,276,000
Accrued interest payable	0	0
Total financial liabilities	3,512,000	4,276,000
Level 3
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	9,229,000	8,955,000
Securities held-to-maturity	0	0
Loans receivable, net	8,108,825,000	7,482,431,000
Accrued interest receivable	0	0
FHLB Stock	0	0
Total financial assets	8,118,054,000	7,491,386,000
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	1,711,487,000	1,710,388,000
Borrowed funds	0	879,863,000
Junior subordinated debentures	113,967,000	115,268,000
Cash flow hedges - swaps	0	0
Accrued interest payable	0	0
Total financial liabilities	1,825,454,000	2,705,519,000
Carrying amount
Financial assets:
Cash and cash equivalents	320,566,000	167,408,000
Securities available-for-sale	890,688,000	874,405,000
Securities held-to-maturity	22,584,000	31,689,000
Loans receivable, net	7,735,320,000	7,159,449,000
Accrued interest receivable	21,591,000	21,072,000
FHLB Stock	7,660,000	40,903,000
Total financial assets	8,998,409,000	8,294,926,000
Financial liabilities:
Savings and checking deposits	6,511,356,000	4,917,863,000
Time deposits	1,691,447,000	1,694,718,000
Borrowed funds	135,891,000	975,007,000
Junior subordinated debentures	111,213,000	111,213,000
Cash flow hedges - swaps	3,512,000	4,276,000
Accrued interest payable	682,000	1,993,000
Total financial liabilities	8,454,101,000	7,705,070,000
Estimated fair value
Financial assets:
Cash and cash equivalents	320,566,000	167,408,000
Securities available-for-sale	890,688,000	874,405,000
Securities held-to-maturity	23,249,000	32,552,000
Loans receivable, net	8,139,180,000	7,482,431,000
Accrued interest receivable	21,591,000	21,072,000
FHLB Stock	7,660,000	40,903,000
Total financial assets	9,402,934,000	8,618,771,000
Financial liabilities:
Savings and checking deposits	6,511,356,000	4,917,863,000
Time deposits	1,711,487,000	1,710,388,000
Borrowed funds	135,891,000	998,527,000
Junior subordinated debentures	113,967,000	115,268,000
Cash flow hedges - swaps	3,512,000	4,276,000
Accrued interest payable	682,000	1,993,000
Total financial liabilities	$ 8,476,895,000	$ 7,748,315,000

Disclosures About Fair Value 63

Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	$ 890,688	$ 874,405
Level 1
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	3,892	1,894
Interest rate swaps	0	0
Total financial assets	376,404	190,374
Level 2
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	877,567	863,556
Interest rate swaps	(3,512)	(4,276)
Total financial assets	900,816	896,108
Level 3
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	9,229	8,955
Interest rate swaps	0	0
Total financial assets	8,118,054	7,491,386
Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Total financial assets	887,176	870,129
Measured on recurring basis | Equity securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	3,892	1,894
Measured on recurring basis | Debt securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	401,661	393,794
Measured on recurring basis | Debt securities | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	7	11
Measured on recurring basis | Debt securities | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	313,203	294,440
Measured on recurring basis | Debt securities | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	71,061	82,868
Measured on recurring basis | Debt securities | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	17,390	16,475
Measured on recurring basis | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	485,135	478,717
Measured on recurring basis | Residential mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	32,372	27,082
Measured on recurring basis | Residential mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	114,942	99,170
Measured on recurring basis | Residential mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	87,729	50,369
Measured on recurring basis | Residential mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	586	606
Measured on recurring basis | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	7,275	10,669
Measured on recurring basis | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	102,781	122,528
Measured on recurring basis | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	130,362	157,378
Measured on recurring basis | Collateralized mortgage obligations | SBA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	7,034	8,166
Measured on recurring basis | Collateralized mortgage obligations | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	2,054	2,749
Measured on recurring basis | Interest rate swaps
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	(3,512)	(4,276)
Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Total financial assets	3,892	1,894
Measured on recurring basis | Level 1 | Equity securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	3,892	1,894
Measured on recurring basis | Level 1 | Debt securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | Debt securities | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | Debt securities | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | Debt securities | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | Debt securities | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Residential mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Residential mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Residential mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Residential mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Collateralized mortgage obligations | SBA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Collateralized mortgage obligations | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 1 | Interest rate swaps
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	0	0
Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Total financial assets	874,055	859,280
Measured on recurring basis | Level 2 | Equity securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 2 | Debt securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	392,432	384,839
Measured on recurring basis | Level 2 | Debt securities | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	7	11
Measured on recurring basis | Level 2 | Debt securities | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	313,203	294,440
Measured on recurring basis | Level 2 | Debt securities | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	71,061	82,868
Measured on recurring basis | Level 2 | Debt securities | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	8,161	7,520
Measured on recurring basis | Level 2 | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	485,135	478,717
Measured on recurring basis | Level 2 | Residential mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	32,372	27,082
Measured on recurring basis | Level 2 | Residential mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	114,942	99,170
Measured on recurring basis | Level 2 | Residential mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	87,729	50,369
Measured on recurring basis | Level 2 | Residential mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	586	606
Measured on recurring basis | Level 2 | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	7,275	10,669
Measured on recurring basis | Level 2 | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	102,781	122,528
Measured on recurring basis | Level 2 | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	130,362	157,378
Measured on recurring basis | Level 2 | Collateralized mortgage obligations | SBA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	7,034	8,166
Measured on recurring basis | Level 2 | Collateralized mortgage obligations | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	2,054	2,749
Measured on recurring basis | Level 2 | Interest rate swaps
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	(3,512)	(4,276)
Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Total financial assets	9,229	8,955
Measured on recurring basis | Level 3 | Equity securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | Debt securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	9,229	8,955
Measured on recurring basis | Level 3 | Debt securities | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | Debt securities | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | Debt securities | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | Debt securities | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	9,229	8,955
Measured on recurring basis | Level 3 | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Residential mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Residential mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Residential mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Residential mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Collateralized mortgage obligations | SBA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Collateralized mortgage obligations | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Measured on recurring basis | Level 3 | Interest rate swaps
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	$ 0	$ 0

Disclosures About Fair Value 64

Disclosures About Fair Value of Financial Instruments - Reconciliation of all Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details) - Level 3 - Debt securities - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance	$ 8,719	$ 9,223	$ 8,955	$ 10,597
Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation):
Included in net income as OTTI	0	0	0	0
Included in other comprehensive income	510	(226)	274	(1,600)
Purchases	0	0	0	0
Sales	0	0	0	0
Transfers in to Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Ending balance	$ 9,229	$ 8,997	$ 9,229	$ 8,997

Disclosures About Fair Value 65

Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	$ 54,851	$ 56,906
Loans measured for impairment
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	48,517	48,181
Mortgage servicing rights
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	1,493
Real estate owned
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	4,841	8,725
Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0	0
Level 1 | Loans measured for impairment
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0	0
Level 1 | Mortgage servicing rights
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0
Level 1 | Real estate owned
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0	0
Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0	0
Level 2 | Loans measured for impairment
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0	0
Level 2 | Mortgage servicing rights
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0
Level 2 | Real estate owned
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	0	0
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	54,851	56,906
Level 3 | Loans measured for impairment
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	48,517	48,181
Level 3 | Mortgage servicing rights
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	1,493
Level 3 | Real estate owned
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	$ 4,841	$ 8,725

Disclosures About Fair Value 66

Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details)	9 Months Ended
	Sep. 30, 2016USD ($)prepayment
Debt securities
Quantitative information for Level 3 Fair Value Measurements Assets
Fair value	$ 9,229,000
Debt securities | Discounted cash flow
Quantitative information for Level 3 Fair Value Measurements Assets
Default rates	1.00%
Prepayment speeds	0.01
Debt securities | Discounted cash flow | Minimum
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	0.40%
Debt securities | Discounted cash flow | Maximum
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	2.10%
Debt securities | Discounted cash flow | Weighted Average
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	0.70%
Prepayment speed | prepayment	1
Loans measured for impairment
Quantitative information for Level 3 Fair Value Measurements Assets
Fair value	$ 48,517,000
Estimated cost to sell	10.00%
Loans measured for impairment | Discounted cash flow | Minimum
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	3.80%
Loans measured for impairment | Discounted cash flow | Maximum
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	20.00%
Loans measured for impairment | Discounted cash flow | Weighted Average
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	11.00%
Mortgage servicing rights
Quantitative information for Level 3 Fair Value Measurements Assets
Fair value	$ 1,493,000
Annual service cost	$ 80
Mortgage servicing rights | Discounted cash flow
Quantitative information for Level 3 Fair Value Measurements Assets
Discount rate	8.00%
Mortgage servicing rights | Discounted cash flow | Minimum
Quantitative information for Level 3 Fair Value Measurements Assets
Prepayment rates	7.10%
Expected life (months)	63 years 6 months
Forward yield curve	0.50%
Mortgage servicing rights | Discounted cash flow | Maximum
Quantitative information for Level 3 Fair Value Measurements Assets
Prepayment rates	11.50%
Expected life (months)	78 years 3 months 18 days
Forward yield curve	1.40%
Mortgage servicing rights | Discounted cash flow | Weighted Average
Quantitative information for Level 3 Fair Value Measurements Assets
Prepayment rates	11.30%
Expected life (months)	77 years 7 months 6 days
Forward yield curve	1.10%
Real estate owned
Quantitative information for Level 3 Fair Value Measurements Assets
Fair value	$ 4,841,000
Estimated cost to sell	10.00%

Guaranteed Preferred Benefici67

Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps - Narrative (Details)	Dec. 15, 2006USD ($)$ / sharesshares	Dec. 05, 2006USD ($)$ / sharesshares	Sep. 30, 2016USD ($)derivativetrust$ / sharesshares	Dec. 31, 2015USD ($)
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Number of statutory business trusts owned | trust			2
Junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities			$ 111,213,000	$ 111,213,000
Hedge ineffectiveness for swaps			$ 0
Interest rate swaps
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Number of agreements | derivative			2
Cash pledged as collateral to the counterparty			$ 4,205,000	4,705,000
Fair value of the swap agreements			$ (3,512,000)	$ (4,276,000)
LNB
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Number of statutory business trusts owned | trust			2
Trust preferred investments
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Maximum period for which interest payment on the subordinated debentures can be deferred			5 years
Interest deferral			$ 0
Northwest Bancorp Capital Trust III | Trust preferred investments
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Cumulative trust preferred securities issued (in shares) | shares		50,000
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares		$ 1,000
Total value of cumulative trust preferred securities issued		$ 50,000,000
Variable rate basis		three-month LIBOR
Junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities			$ 51,547,000
Northwest Bancorp Capital Trust III | Trust preferred investments | Interest rate swaps
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Fixed rate (as a percent)			4.61%
Original term of swaps			10 years
Northwest Bancorp Capital Trust III | Trust preferred investments | LIBOR
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Spread on variable rate basis (as a percent)		1.38%
Northwest Bancorp Statutory Trust IV | Trust preferred investments
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Cumulative trust preferred securities issued (in shares) | shares	50,000
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares	$ 1,000
Total value of cumulative trust preferred securities issued	$ 50,000,000
Variable rate basis	three-month LIBOR
Junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities			$ 51,547,000
Northwest Bancorp Statutory Trust IV | Trust preferred investments | Interest rate swaps
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Fixed rate (as a percent)			4.09%
Original term of swaps			10 years
Notional amount			$ 25,000,000
Northwest Bancorp Statutory Trust IV | Trust preferred investments | LIBOR
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Spread on variable rate basis (as a percent)	1.38%
LNB Trust II | Interest rate swaps
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Cumulative trust preferred securities issued (in shares) | shares			7,875
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares			$ 1,000
Total value of cumulative trust preferred securities issued			$ 7,875,000
Junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities			$ 8,119,000
Fixed rate (as a percent)			6.64%
LNB Trust II | LIBOR | Interest rate swaps
Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps
Spread on variable rate basis (as a percent)			1.48%

Guaranteed Preferred Benefici68

Guaranteed Preferred Beneficial Interests in the Company's Junior Subordinated Deferrable Interest Debentures (Trust Preferred Securities) and Interest Rate Swaps - Liability Derivatives (Details) - Interest rate swap agreements - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Liability Derivatives, Included in Other Liabilities
Fair value	$ 3,512	$ 4,276
Notional amount	50,000	50,000
Collateral posted	$ 4,205	$ 4,705

Changes in Accumulated Other 69

Changes in Accumulated Other Comprehensive Income/ (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated other comprehensive income (net of tax)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	$ 36	$ 120	$ (3)	$ 467
Changes in accumulated other comprehensive income by component
Balance beginning of the period	1,155,455	1,068,350	1,163,163	1,062,647
Other comprehensive income/ (loss)	(126)	2,523	4,892	4,310
Balance end of the period	1,162,803	1,161,337	1,162,803	1,161,337
Income tax (expense) benefit related to (gain) loss on securities	(23)	(77)	1	(299)
Reclassification adjustments for prior period service costs and net losses included in net income, net of tax of $(144), $(140), $(432) and $(420), respectively	224	219	675	657
Income tax expense (benefit) related to compensation and employee benefits	144	140	432	420
Unrealized gains and (losses) on securities available-for-sale
Accumulated other comprehensive income (net of tax)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	59	197
Changes in accumulated other comprehensive income by component
Balance beginning of the period	7,866	4,278	3,325	3,461
Other comprehensive income before reclassification adjustments	(785)	2,379	3,717	3,543
Amounts reclassified from accumulated other comprehensive income	(36)	(120)	3	(467)
Other comprehensive income/ (loss)	(821)	2,259	3,720	3,076
Balance end of the period	7,045	6,537	7,045	6,537
Realized gains (losses) on securities, net of tax			(4)	766
Income tax (expense) benefit related to (gain) loss on securities	(23)	(77)	1	(299)
Change in fair value of interest rate swaps
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(2,753)	(3,546)	(2,779)	(4,078)
Other comprehensive income before reclassification adjustments	471	45	497	577
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Other comprehensive income/ (loss)	471	45	497	577
Balance end of the period	(2,282)	(3,501)	(2,282)	(3,501)
Change in defined benefit pension plans
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(24,630)	(23,315)	(25,081)	(23,753)
Other comprehensive income before reclassification adjustments	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	224	219	675	657
Other comprehensive income/ (loss)	224	219	675	657
Balance end of the period	(24,406)	(23,096)	(24,406)	(23,096)
Reclassification adjustments for prior period service costs and net losses included in net income, net of tax of $(144), $(140), $(432) and $(420), respectively	581	581
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax	(949)	(940)
Amortization of prior service cost (compensation and employee benefits)			1,742	1,743
Amortization of net loss (compensation and employee benefits)			(2,849)	(2,820)
Income tax expense (benefit) related to compensation and employee benefits	144	140	432	420
Accumulated other comprehensive income
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(19,517)	(22,583)	(24,535)	(24,370)
Other comprehensive income before reclassification adjustments	(314)	2,424	4,214	4,120
Amounts reclassified from accumulated other comprehensive income	188	99	678	190
Other comprehensive income/ (loss)	(126)	2,523	4,892	4,310
Balance end of the period	$ (19,643)	$ (20,060)	$ (19,643)	$ (20,060)