NBT Bancorp (NBTB) 10-Q10 Aug 152015 Q2 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2015	Jul. 31, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	NBT BANCORP INC
Entity Central Index Key	790,359
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		43,726,211
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 127,676	$ 139,635
Short-term interest bearing accounts	6,535	7,001
Securities available for sale, at fair value	1,129,249	1,013,171
Securities held to maturity (fair value $454,255 and $454,994, respectively)	454,312	454,361
Trading securities	8,468	7,793
Federal Reserve and Federal Home Loan Bank stock	38,659	32,626
Loans	5,770,888	5,595,271
Less allowance for loan losses	64,959	66,359
Net loans	5,705,929	5,528,912
Premises and equipment, net	87,652	89,258
Goodwill	263,634	263,634
Intangible assets, net	17,897	20,317
Bank owned life insurance	115,241	114,251
Other assets	117,233	126,967
Total assets	8,072,485	7,797,926
Liabilities
Demand (noninterest bearing)	1,840,012	1,838,622
Savings, NOW, and money market	3,583,313	3,417,160
Time	948,154	1,043,823
Total deposits	6,371,479	6,299,605
Short-term borrowings	511,992	316,802
Long-term debt	130,705	130,945
Junior subordinated debt	101,196	101,196
Other liabilities	81,142	85,197
Total liabilities	7,196,514	6,933,745
Stockholders' equity
Preferred stock, $0.01 par value. Authorized 2,500,000 shares at June 30, 2015 and December 31, 2014	0	0
Common stock, $0.01 par value. Authorized 100,000,000 shares at June 30, 2015 and December 31, 2014; issued 49,651,494 at June 30, 2015 and December 31, 2014	497	497
Additional paid-in-capital	575,612	576,504
Retained earnings	442,446	423,956
Accumulated other comprehensive loss	(16,223)	(17,027)
Common stock in treasury, at cost, 5,966,065 and 5,755,040 shares at June 30, 2015 and December 31, 2014, respectively	(126,361)	(119,749)
Total stockholders' equity	875,971	864,181
Total liabilities and stockholders' equity	$ 8,072,485	$ 7,797,926

Consolidated Balance Sheets (u3

Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets
Securities held to maturity fair value	$ 454,255	$ 454,994
Stockholders' equity
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,500,000	2,500,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	49,651,494	49,651,494
Common stock in treasury, at cost (in shares)	5,966,065	5,755,040

Consolidated Statements of Inco

Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest, fee, and dividend income
Interest and fees on loans	$ 59,873	$ 60,559	$ 119,391	$ 120,574
Securities available for sale	5,144	6,612	10,089	13,369
Securities held to maturity	2,315	783	4,598	1,551
Other	395	502	875	1,039
Total interest, fee, and dividend income	67,727	68,456	134,953	136,533
Interest expense
Deposits	3,517	3,000	7,090	6,284
Short-term borrowings	144	209	265	440
Long-term debt	836	2,135	1,662	4,642
Junior subordinated debt	545	538	1,085	1,076
Total interest expense	5,042	5,882	10,102	12,442
Net interest income	62,685	62,574	124,851	124,091
Provision for loan losses	3,898	4,166	7,540	7,762
Net interest income after provision for loan losses	58,787	58,408	117,311	116,329
Noninterest income
Insurance and other financial services revenue	5,836	5,594	12,210	12,331
Service charges on deposit accounts	4,285	4,397	8,357	8,766
ATM and debit card fees	4,679	4,357	8,927	8,429
Retirement plan administration fees	3,566	2,977	6,762	5,895
Trust	5,196	4,953	9,646	9,399
Bank owned life insurance	928	978	2,487	2,360
Net securities gains	26	14	40	21
Gain on the sale of equity investment	0	19,401	0	19,401
Other	3,699	3,356	6,320	5,702
Total noninterest income	28,215	46,027	54,749	72,304
Noninterest expense
Salaries and employee benefits	30,831	31,142	61,013	60,676
Occupancy	5,412	5,435	11,478	11,661
Data processing and communications	4,288	4,015	8,391	8,016
Professional fees and outside services	3,395	3,752	6,892	7,167
Equipment	3,316	3,132	6,565	6,248
Office supplies and postage	1,627	1,803	3,246	3,488
FDIC expenses	1,280	1,229	2,478	2,507
Advertising	734	726	1,453	1,465
Amortization of intangible assets	1,187	1,236	2,471	2,546
Loan collection and other real estate owned	22	801	894	1,841
Prepayment penalties on long-term debt	0	4,554	0	4,554
Other	5,872	4,911	10,785	10,084
Total noninterest expense	57,964	62,736	115,666	120,253
Income before income tax expense	29,038	41,699	56,394	68,380
Income tax expense	9,757	14,059	18,947	22,731
Net income	$ 19,281	$ 27,640	$ 37,447	$ 45,649
Earnings per share
Basic (in dollars per share)	$ 0.44	$ 0.63	$ 0.85	$ 1.04
Diluted (in dollars per share)	$ 0.43	$ 0.62	$ 0.84	$ 1.03

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Comprehensive Income (unaudited) [Abstract]
Net income	$ 19,281	$ 27,640	$ 37,447	$ 45,649
Other comprehensive (loss) income, net of tax:
Unrealized net holding (losses) gains arising during the period (pre-tax amounts of ($5,277), $8,267, ($434) and $16,892)	(3,223)	4,992	(266)	10,200
Reclassification adjustment for net gains related to securities available for sale included in net income (pre-tax amounts of $26, $14, $40 and $21)	(16)	(8)	(24)	(13)
Amortization of unrealized net gains and losses related to the reclassification of available for sale investment securities to held to maturity (pre-tax amounts of $307, $-, $614 and $-)	205	0	410	0
Pension and other benefits:
Amortization of prior service cost and actuarial gains (pre-tax amounts of $560, $19, $1,120 and $38)	342	11	684	23
Total other comprehensive (loss) income	(2,692)	4,995	804	10,210
Comprehensive income	$ 16,589	$ 32,635	$ 38,251	$ 55,859

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other comprehensive (loss) income, net of tax:
Unrealized net holding (losses) gains arising during the period, pre-tax amounts	$ (5,277)	$ 8,267	$ (434)	$ 16,892
Reclassification adjustment for net gains related to securities available for sale included in net income, pre-tax amounts	26	14	40	21
Amortization of unrealized net gains and losses related to the reclassification of available for sale investment securities to held to maturity, pre-tax amounts	307	0	614	0
Amortization of prior service cost and actuarial gains, pre-tax amounts	$ 561	$ 19	$ 1,122	$ 38

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in-Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Common Stock in Treasury [Member]	Total
Beginning Balance at Dec. 31, 2013	$ 497	$ 574,152	$ 385,787	$ (16,765)	$ (127,102)	$ 816,569
Net income	0	0	45,649	0	0	45,649
Cash dividends	0	0	(18,425)	0	0	(18,425)
Purchases of treasury shares	0	0	0	0	(72)	(72)
Net issuance of shares to employee benefit plans and other stock plans, including tax benefit	0	(2,232)	0	0	3,360	1,128
Stock-based compensation	0	2,082	0	0	0	2,082
Other comprehensive income	0	0	0	10,210	0	10,210
Ending Balance at Jun. 30, 2014	497	574,002	413,011	(6,555)	(123,814)	857,141
Beginning Balance at Dec. 31, 2014	497	576,504	423,956	(17,027)	(119,749)	864,181
Net income	0	0	37,447	0	0	37,447
Cash dividends	0	0	(18,957)	0	0	(18,957)
Purchases of treasury shares	0	0	0	0	(10,672)	(10,672)
Net issuance of shares to employee benefit plans and other stock plans, including tax benefit	0	(3,568)	0	0	4,060	492
Stock-based compensation	0	2,676	0	0	0	2,676
Other comprehensive income	0	0	0	804	0	804
Ending Balance at Jun. 30, 2015	$ 497	$ 575,612	$ 442,446	$ (16,223)	$ (126,361)	$ 875,971

Consolidated Statements of Sto8

Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Stockholders' Equity (unaudited) [Abstract]
Cash dividends - per share (in dollars per share)	$ 0.43	$ 0.42
Purchase of treasury shares (in shares)	433,351	3,288
Net issuance of shares to employee benefit plans and other stock plans, including tax benefit (in shares)	222,326	189,036

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities
Net income	$ 37,447	$ 45,649
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan losses	7,540	7,762
Depreciation and amortization of premises and equipment	4,277	4,105
Net accretion on securities	1,157	1,883
Amortization of intangible assets	2,471	2,546
Stock based compensation	2,676	2,082
Bank owned life insurance income	(2,487)	(2,360)
Purchases of trading securities	(649)	(1,485)
Gains on trading securities	(26)	(91)
Proceeds from sales of loans held for sale	24,743	1,922
Originations and purchases of loans held for sale	(26,051)	(3,701)
Net gains on sales of loans held for sale	(103)	(3)
Net security gains	(40)	(21)
Net gain on sales of other real estate owned	(1,079)	(212)
Gain on sale of equity investment	0	(19,401)
Prepayment penalties on long-term debt	0	4,554
Net decrease in other assets	11,647	7,607
Net decrease in other liabilities	(6,152)	(8,421)
Net cash provided by operating activities	55,371	42,415
Securities available for sale:
Proceeds from maturities, calls, and principal paydowns	125,278	119,680
Purchases	(242,304)	(116,594)
Securities held to maturity:
Proceeds from maturities, calls, and principal paydowns	42,950	14,835
Purchases	(41,448)	(17,363)
Other:
Net increase in loans	(185,349)	(174,358)
Proceeds from FHLB stock redemption	19,085	37,179
Purchases of Federal Reserve and FHLB stock	(25,118)	(39,408)
Proceeds from settlement of bank owned life insurance	1,497	1,319
Purchases of premises and equipment	(2,671)	(3,498)
Proceeds from sale of equity investment	0	19,639
Proceeds from the sales of other real estate owned	2,597	1,919
Net cash used in investing activities	(305,483)	(156,650)
Financing activities
Net increase in deposits	71,874	152,364
Net increase in short-term borrowings	195,190	78,436
Proceeds from issuance of long-term debt	0	120,000
Repayments of long-term debt	(240)	(194,785)
Proceeds from the issuance of shares to employee benefit plans and other stock plans	492	1,128
Purchase of treasury stock	(10,672)	(72)
Cash dividends	(18,957)	(18,425)
Net cash provided by financing activities	237,687	138,646
Net (decrease) increase in cash and cash equivalents	(12,425)	24,411
Cash and cash equivalents at beginning of period	146,636	158,926
Cash and cash equivalents at end of period	134,211	183,337
Cash paid during the period for:
Interest	10,628	13,405
Income taxes paid	9,027	19,496
Noncash investing activities:
Loans transferred to other real estate owned	$ 2,203	$ 785

Description of Business

Description of Business	6 Months Ended
Description of Business	Jun. 30, 2015
Description of Business [Abstract]
Description of Business	Note 1. Description of Business NBT Bancorp Inc. (the "Registrant" or the "Company") is a registered financial holding company incorporated in the state of Delaware in 1986, with its principal headquarters located in Norwich, New York. The principal assets of the Registrant consist of all of the outstanding shares of common stock of its subsidiaries, including: NBT Bank, National Association (the "Bank"), NBT Financial Services, Inc. ("NBT Financial"), NBT Holdings, Inc. ("NBT Holdings"), Hathaway Agency, Inc., and CNBF Capital Trust I, NBT Statutory Trust I, NBT Statutory Trust II, Alliance Financial Capital Trust I, and Alliance Financial Capital Trust II (collectively, the "Trusts"). The Company's principal sources of revenue are the management fees and dividends it receives from the Bank, NBT Financial and NBT Holdings. The Company's business, primarily conducted through the Bank but also through its other subsidiaries, consists of providing commercial banking and financial services to customers in its market area, which includes central and upstate New York, northeastern Pennsylvania, northwestern Vermont, western Massachusetts, southern New Hampshire, and southern Maine. The Company has been, and intends to continue to be, a community-oriented financial institution offering a variety of financial services. The Company's business philosophy is to operate as a community bank with local decision-making, principally in non-metropolitan markets, providing a broad array of banking and financial services to retail, commercial, and municipal customers.

Basis of Presentation

Basis of Presentation	6 Months Ended
Basis of Presentation	Jun. 30, 2015
Basis of Presentation [Abstract]
Basis of Presentation	Note 2. Basis of Presentation The accompanying unaudited interim consolidated financial statements include the accounts of the Registrant and its wholly owned subsidiaries, the Bank, NBT Financial, NBT Holdings, and Hathaway Agency, Inc. Collectively, the Registrant and its subsidiaries are referred to herein as "the Company." The interim data includes all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results for the interim periods in accordance with generally accepted accounting principles ("GAAP"). These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our 2014 Annual Report on Form 10-K. The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the full year or any other interim period. All intercompany transactions have been eliminated in consolidation. Amounts in the prior period financial statements are reclassified whenever necessary to conform to current period presentation. The Company has evaluated subsequent events for potential recognition and/or disclosure and there were none identified.

Securities

Securities	6 Months Ended
Securities	Jun. 30, 2015
Securities [Abstract]
Securities	Note 3. Securities The amortized cost, estimated fair value, and unrealized gains and losses of securities available for sale are as follows: (In thousands) Amortized cost Unrealized gains Unrealized losses Estimated fair value June 30, 2015 U.S. Treasury $ 10,005 $ 9 $ - $ 10,014 Federal Agency 397,197 759 (1,033 ) 396,923 State & municipal 29,881 505 (26 ) 30,360 Mortgage-backed: Government-sponsored enterprises 333,292 5,914 (439 ) 338,767 U.S. government agency securities 15,325 796 (59 ) 16,062 Collateralized mortgage obligations: Government-sponsored enterprises 285,733 1,966 (535 ) 287,164 U.S. government agency securities 33,965 428 (34 ) 34,359 Other securities 12,872 2,870 (142 ) 15,600 Total securities available for sale $ 1,118,270 $ 13,247 $ (2,268 ) $ 1,129,249 December 31, 2014 U.S. Treasury $ 23,041 $ 70 $ - $ 23,111 Federal Agency 332,193 327 (2,606 ) 329,914 State & municipal 37,035 587 (52 ) 37,570 Mortgage-backed: Government-sponsored enterprises 339,190 7,597 (224 ) 346,563 U.S. government agency securities 17,367 863 (66 ) 18,164 Collateralized mortgage obligations: Government-sponsored enterprises 199,837 1,828 (234 ) 201,431 U.S. government agency securities 40,237 497 (36 ) 40,698 Other securities 12,818 3,054 (152 ) 15,720 Total securities available for sale $ 1,001,718 $ 14,823 $ (3,370 ) $ 1,013,171 Other Securities with amortized costs totaling $1.4 billion at June 30, 2015 and $1.4 billion at December 31, 2014 were pledged to secure public deposits and for other purposes required or permitted by law. At June 30, 2015 and December 31, 2014, securities with an amortized cost of $172.2 million and $208.8 million, respectively, were pledged as collateral for securities sold under repurchase agreements. The amortized cost, estimated fair value, and unrealized gains and losses of securities held to maturity are as follows: (In thousands) Amortized cost Unrealized gains Unrealized losses Estimated fair value June 30, 2015 Mortgage-backed: Government-sponsored enterprises $ 10,049 $ - $ (142 ) $ 9,907 U.S. government agency securities 695 118 - 813 Collateralized mortgage obligations: Government-sponsored enterprises 295,510 1,769 (1,826 ) 295,453 State & municipal 148,058 466 (442 ) 148,082 Total securities held to maturity $ 454,312 $ 2,353 $ (2,410 ) $ 454,255 December 31, 2014 Mortgage-backed: Government-sponsored enterprises $ 755 $ 113 $ - $ 868 Collateralized mortgage obligations: Government-sponsored enterprises 317,628 1,934 (1,965 ) 317,597 State & municipal 135,978 674 (123 ) 136,529 Total securities held to maturity $ 454,361 $ 2,721 $ (2,088 ) $ 454,994 The following table sets forth information with regard to investment securities with unrealized losses for the periods presented: Less than 12 months 12 months or longer Total Security Type: Fair Value Unrealized losses Number of Positions Fair Value Unrealized losses Number of Positions Fair Value Unrealized losses Number of Positions June 30, 2015 Investment securities available for sale: Federal agency $ 146,403 $ (765 ) 13 $ 29,732 $ (268 ) 3 $ 176,135 $ (1,033 ) 16 State & municipal 6,184 (26 ) 14 - - - 6,184 (26 ) 14 Mortgage-backed 57,745 (439 ) 28 4,571 (59 ) 17 62,316 (498 ) 45 Collateralized mortgage obligations 87,849 (531 ) 9 5,452 (38 ) 4 93,301 (569 ) 13 Other securities - - - 3,211 (142 ) 2 3,211 (142 ) 2 Total securities with unrealized losses $ 298,181 $ (1,761 ) 64 $ 42,966 $ (507 ) 26 $ 341,147 $ (2,268 ) 90 June 30, 2015 Investment securities held to maturity: Mortgage-backed $ 9,907 $ (142 ) 1 $ - $ - - $ 9,907 $ (142 ) 1 Collateralized mortgage obligations 76,008 (306 ) 8 44,136 (1,520 ) 4 120,144 (1,826 ) 12 State & municipal 43,095 (442 ) 89 - - - 43,095 (442 ) 89 Total securities with unrealized losses $ 129,010 $ (890 ) 98 $ 44,136 $ (1,520 ) 4 $ 173,146 $ (2,410 ) 102 December 31, 2014 Investment securities available for sale: Federal agency $ 66,528 $ (226 ) 8 $ 198,151 $ (2,380 ) 16 $ 264,679 $ (2,606 ) 24 State & municipal 8,818 (42 ) 33 1,321 (10 ) 5 10,139 (52 ) 38 Mortgage-backed 10,400 (36 ) 10 35,565 (254 ) 31 45,965 (290 ) 41 Collateralized mortgage obligations 57,682 (196 ) 8 6,598 (74 ) 4 64,280 (270 ) 12 Other securities - - - 3,201 (152 ) 2 3,201 (152 ) 2 Total securities with unrealized losses $ 143,428 $ (500 ) 59 $ 244,836 $ (2,870 ) 58 $ 388,264 $ (3,370 ) 117 December 31, 2014 Investment securities held to maturity: Collateralized mortgage obligations $ 26,052 $ (49 ) 2 $ 46,415 $ (1,916 ) 4 $ 72,467 $ (1,965 ) 6 State & municipal 43,514 (116 ) 110 1,619 (7 ) 6 45,133 (123 ) 116 Total securities with unrealized losses $ 69,566 $ (165 ) 112 $ 48,034 $ (1,923 ) 10 $ 117,600 $ (2,088 ) 122 Management has the intent to hold the securities classified as held to maturity until they mature, at which time it is believed the Company will receive full value for the securities. Furthermore, as of June 30, 2015, management also had the intent to hold, and will not be required to sell, the securities classified as available for sale for a period of time sufficient for a recovery of cost, which may be until maturity. The unrealized losses are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. When necessary, the Company has performed a discounted cash flow analysis to determine whether or not it will receive the contractual principal and interest on certain securities. The fair value is expected to recover as the bonds approach their maturity date or repricing date or if market yields for such investments decline. As of June 30, 2015, management believes the impairments detailed in the table above are temporary and no other-than-temporary impairment losses have been realized in the Company's consolidated statements of income. The following tables set forth information with regard to contractual maturities of debt securities at June 30, 2015: (In thousands) Amortized cost Estimated fair value Debt securities classified as available for sale Within one year $ 13,981 $ 14,032 From one to five years 412,442 413,423 From five to ten years 150,200 152,606 After ten years 528,775 533,588 $ 1,105,398 $ 1,113,649 Debt securities classified as held to maturity Within one year $ 24,317 $ 24,328 From one to five years 15,730 15,811 From five to ten years 99,778 99,818 After ten years 314,487 314,298 $ 454,312 $ 454,255 Maturities of mortgage-backed and collateralized mortgage obligations are stated based on their estimated average lives. Actual maturities may differ from estimated average lives or contractual maturities because, in certain cases, borrowers have the right to call or prepay obligations with or without call or prepayment penalties. Except for U.S. Government securities, there were no holdings, when taken in the aggregate, of any single issuer that exceeded 10% of consolidated stockholders' equity at June 30, 2015.

Allowance for Loan Losses and C

Allowance for Loan Losses and Credit Quality of Loans	6 Months Ended
Allowance for Loan Losses and Credit Quality of Loans	Jun. 30, 2015
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Allowance for Loan Losses and Credit Quality of Loans	Note 4. Allowance for Loan Losses and Credit Quality of Loans Allowance for Loan Losses The allowance for loan losses is maintained at a level estimated by management to provide adequately for probable incurred losses inherent in the current loan portfolio. The adequacy of the allowance for loan losses is continuously monitored. It is assessed for adequacy using a methodology designed to ensure the level of the allowance reasonably reflects the loan portfolio's risk profile. It is evaluated to ensure that it is sufficient to absorb all reasonably estimable credit losses inherent in the current loan portfolio. To develop and document a systematic methodology for determining the allowance for loan losses, the Company has divided the loan portfolio into three segments, each with different risk characteristics and methodologies for assessing risk. Those segments are further segregated between our loans accounted for under the amortized cost method (referred to as "originated" loans) and loans acquired in a business combination (referred to as "acquired" loans). Each portfolio segment is broken down into class segments where appropriate. Class segments contain unique measurement attributes, risk characteristics and methods for monitoring and assessing risk that are necessary to develop the allowance for loan losses. Unique characteristics such as borrower type, loan type, collateral type, and risk characteristics define each class segment. The following table illustrates the portfolio and class segments for the Company's loan portfolio: Portfolio Class Commercial Loans Commercial Commercial Real Estate Agricultural Agricultural Real Estate Business Banking Consumer Loans Indirect Home Equity Direct Residential Real Estate Mortgages Commercial Loans The Company offers a variety of commercial loan products including commercial (non-real estate), commercial real estate, agricultural, agricultural real estate, and business banking loans. The Company's underwriting analysis for commercial loans typically includes credit verification, independent appraisals, a review of the borrower's financial condition, and a detailed analysis of the borrower's underlying cash flows. Commercial (non-Real Estate) – Commercial Real Estate – Agricultural Agricultural Real Estate Business Banking - Consumer Loans The Company offers a variety of consumer loan products including indirect, home equity, and direct loans. Indirect – Home Equity Direct – Residential Real Estate Mortgages Residential real estate loans consist primarily of loans secured by first or second deeds of trust on primary residences. We originate adjustable-rate and fixed-rate, one-to-four-family residential real estate loans for the construction, purchase or refinancing of a residential mortgage. These loans are collateralized by owner-occupied properties located in the Company's market area. Loans on one-to-four-family residential real estate are generally originated in amounts of no more than 85% of the purchase price or appraised value (whichever is lower), or have private mortgage insurance. The Company's underwriting analysis for residential mortgage loans typically includes credit verification, independent appraisals, and a review of the borrower's financial condition. Mortgage title insurance and hazard insurance are normally required. Construction loans have a unique risk, because they are secured by an incomplete dwelling. This risk is reduced through periodic site inspections, including one at each loan draw period. For purposes of evaluating the adequacy of the allowance, the Company considers a number of significant factors that affect the collectability of the portfolio. For individually analyzed loans, these include estimates of loss exposure, which reflect the facts and circumstances that affect the likelihood of repayment of such loans as of the evaluation date. For homogeneous pools of loans, estimates of the Company's exposure to credit loss reflect a current assessment of a number of factors, which could affect collectability. These factors include: past loss experience; size, trend, composition, and nature of loans; changes in lending policies and procedures, including underwriting standards and collection, charge-offs and recoveries; trends experienced in nonperforming and delinquent loans; current economic conditions in the Company's market; portfolio concentrations that may affect loss experienced across one or more components of the portfolio; the effect of external factors such as competition, legal and regulatory requirements; and the experience, ability, and depth of lending management and staff. In addition, various regulatory agencies, as an integral component of their examination process, periodically review the Company's allowance for loan losses. Such agencies may require the Company to make loan grade changes as well as recognize additions to the allowance based on their examinations. After a thorough consideration of the factors discussed above, any required additions or reductions to the allowance for loan losses are made periodically by charges or credits to the provision for loan losses. These charges or credits are necessary to maintain the allowance at a level which management believes is reasonably reflective of overall inherent risk of probable loss in the portfolio. While management uses available information to recognize losses on loans, additions and reductions of the allowance may fluctuate from one reporting period to another. These fluctuations are reflective of changes in risk associated with portfolio content and/or changes in management's assessment of any or all of the determining factors discussed above. The following tables illustrate the changes in the allowance for loan losses by our portfolio segments for the three and six months ended June 30, 2015 and 2014: Three months ended June 30, Commercial Loans Consumer Loans Residential Real Estate Mortgages Unallocated Total Balance as of March 31, 2015 $ 31,278 $ 26,156 $ 7,698 $ 227 $ 65,359 Charge-offs (584 ) (4,275 ) (509 ) - (5,368 ) Recoveries 280 697 93 - 1,070 Provision (2,648 ) 5,736 999 (189 ) 3,898 Ending Balance as of June 30, 2015 $ 28,326 $ 28,314 $ 8,281 $ 38 $ 64,959 Balance as of March 31, 2014 $ 34,437 $ 28,436 $ 6,225 $ 336 $ 69,434 Charge-offs (1,427 ) (3,648 ) (165 ) - (5,240 ) Recoveries 314 714 146 - 1,174 Provision 1,799 2,471 (1 ) (103 ) 4,166 Ending Balance as of June 30, 2014 $ 35,123 $ 27,973 $ 6,205 $ 233 $ 69,534 Six months ended June 30, Commercial Loans Consumer Loans Residential Real Estate Mortgages Unallocated Total Balance as of December 31, 2014 $ 32,433 $ 26,720 $ 7,130 $ 76 $ 66,359 Charge-offs (1,382 ) (8,653 ) (1,013 ) - (11,048 ) Recoveries 514 1,445 149 - 2,108 Provision (3,239 ) 8,802 2,015 (38 ) 7,540 Ending Balance as of June 30, 2015 $ 28,326 $ 28,314 $ 8,281 $ 38 $ 64,959 Balance as of December 31, 2013 $ 35,090 $ 27,694 $ 6,520 $ 130 $ 69,434 Charge-offs (1,906 ) (7,680 ) (484 ) - (10,070 ) Recoveries 713 1,455 240 - 2,408 Provision 1,226 6,504 (71 ) 103 7,762 Ending Balance as of June 30, 2014 $ 35,123 $ 27,973 $ 6,205 $ 233 $ 69,534 As of June 30, 2015, included in the above tables, there was $1.9 million in the allowance for loan losses related to acquired commercial loans. There was $1.5 in the allowance for loan loasses as of June 30, 2014 related to acquired loans. Net charge-offs related to acquired loans totaled approximately $0.1 million and $0.1 million during the three months ended June 30, 2015 and 2014, respectively, and approximately $0.7 million and $0.2 million during the six months ended June 30, 2015 and 2014, respectively, and are included in the table above. The following tables illustrate the allowance for loan losses and the recorded investment by portfolio segments as of June 30, 2015 and December 31, 2014: Allowance for Loan Losses and Recorded Investment in Loans (in thousands) Commercial Loans Consumer Loans Residential Real Estate Mortgages Unallocated Total As of June 30, 2015 Allowance for loan losses $ 28,326 $ 28,314 $ 8,281 $ 38 $ 64,959 Allowance for loans individually evaluated for impairment 2,885 - - 2,885 Allowance for loans collectively evaluated for impairment $ 25,441 $ 28,314 $ 8,281 $ 38 $ 62,074 Ending balance of loans $ 2,565,590 $ 2,051,540 $ 1,153,758 $ 5,770,888 Ending balance of originated loans individually evaluated for impairment 12,506 6,967 5,021 24,494 Ending balance of acquired loans individually evaluated for impairment 9,719 - - 9,719 Ending balance of acquired loans collectively evaluated for impairment 309,699 120,316 251,751 681,766 Ending balance of originated loans collectively evaluated for impairment $ 2,233,666 $ 1,924,257 $ 896,986 $ 5,054,909 As of December 31, 2014 Allowance for loan losses $ 32,433 $ 26,720 $ 7,130 $ 76 $ 66,359 Allowance for loans individually evaluated for impairment 1,100 - - 1,100 Allowance for loans collectively evaluated for impairment $ 31,333 $ 26,720 $ 7,130 $ 76 $ 65,259 Ending balance of loans $ 2,473,702 $ 2,005,980 $ 1,115,589 $ 5,595,271 Ending balance of originated loans individually evaluated for impairment 11,079 5,498 3,544 20,121 Ending balance of acquired loans individually evaluated for impairment 5,675 - - 5,675 Ending balance of acquired loans collectively evaluated for impairment 327,656 147,256 266,747 741,659 Ending balance of originated loans collectively evaluated for impairment $ 2,129,292 $ 1,853,226 $ 845,298 $ 4,827,816 Credit Quality of Loans Loans are placed on nonaccrual status when timely collection of principal and interest in accordance with contractual terms is doubtful. This generally occurs when principal or interest payments become ninety days delinquent, unless the loan is well secured and in the process of collection, or sooner when management concludes or circumstances indicate that borrowers may be unable to meet contractual principal or interest payments. When a loan is transferred to a nonaccrual status, all interest previously accrued in the current period but not collected is reversed against interest income in that period. Interest accrued in a prior period and not collected is charged-off against the allowance for loan losses. The Company's nonaccrual policies are the same for all classes of financing receivable. If ultimate repayment of a nonaccrual loan is expected, any payments received are applied in accordance with contractual terms. If ultimate repayment of principal is not expected, any payment received on a nonaccrual loan is applied to principal until ultimate repayment becomes expected. Nonaccrual loans are returned to accrual status when they become current as to principal and interest and demonstrate a period of performance under the contractual terms and, in the opinion of management, are fully collectible as to principal and interest. For loans in all portfolios, the principal amount is charged off in full or in part as soon as management determines, based on available facts, that the collection of principal in full is improbable. For commercial loans, management considers specific facts and circumstances relative to individual credits in making such a determination. For consumer and residential loan classes, management uses specific guidance and thresholds from the Federal Financial Institutions Examination Council's Uniform Retail Credit Classification and Account Management Policy. The following tables set forth information with regard to past due and nonperforming loans by loan class as of June 30, 2015 and December 31, 2014: Age Analysis of Past Due Financing Receivables As of June 30, 2015 (in thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Non-Accrual Current Recorded Total Loans ORIGINATED Commercial Loans Commercial $ 268 $ 7 $ - $ 275 $ 22 $ 629,818 $ 630,115 Commercial Real Estate 1,274 28 - 1,302 6,825 1,148,828 1,156,955 Agricultural 3 67 - 70 1,041 31,704 32,815 Agricultural Real Estate 18 - - 18 326 26,380 26,724 Business Banking 1,478 77 - 1,555 5,701 392,307 399,563 3,041 179 - 3,220 13,915 2,229,037 2,246,172 Consumer Loans Indirect 14,212 3,035 1,250 18,497 1,553 1,378,754 1,398,804 Home Equity 4,941 1,172 328 6,441 5,226 466,301 477,968 Direct 348 111 106 565 59 53,828 54,452 19,501 4,318 1,684 25,503 6,838 1,898,883 1,931,224 Residential Real Estate Mortgages 2,869 962 174 4,005 7,586 890,416 902,007 $ 25,411 $ 5,459 $ 1,858 $ 32,728 $ 28,339 $ 5,018,336 $ 5,079,403 ACQUIRED Commercial Loans Commercial $ - $ - $ - $ - $ 2,509 $ 75,153 $ 77,662 Commercial Real Estate - - - - 7,204 182,634 189,838 Business Banking 181 5 - 186 452 51,280 51,918 181 5 - 186 10,165 309,067 319,418 Consumer Loans Indirect 242 32 - 274 125 43,418 43,817 Home Equity 130 61 67 258 555 71,457 72,270 Direct 21 34 8 63 36 4,130 4,229 393 127 75 595 716 119,005 120,316 Residential Real Estate Mortgages 1,009 406 61 1,476 3,066 247,209 251,751 $ 1,583 $ 538 $ 136 $ 2,257 $ 13,947 $ 675,281 $ 691,485 Total Loans $ 26,994 $ 5,997 $ 1,994 $ 34,985 $ 42,286 $ 5,693,617 $ 5,770,888 Age Analysis of Past Due Financing Receivables As of December 31, 2014 (in thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Non-Accrual Current Recorded Total Loans ORIGINATED Commercial Loans Commercial $ - $ 735 $ - $ 735 $ 1,012 $ 613,400 $ 615,147 Commercial Real Estate 192 - - 192 4,127 1,064,549 1,068,868 Agricultural - - - - 817 32,130 32,947 Agricultural Real Estate 19 - - 19 565 24,390 24,974 Business Banking 799 235 84 1,118 6,910 390,407 398,435 1,010 970 84 2,064 13,431 2,124,876 2,140,371 Consumer Loans Indirect 16,434 3,154 1,991 21,579 1,964 1,286,507 1,310,050 Home Equity 4,591 1,428 821 6,840 6,596 479,444 492,880 Direct 560 157 52 769 84 54,941 55,794 21,585 4,739 2,864 29,188 8,644 1,820,892 1,858,724 Residential Real Estate Mortgages 2,901 96 1,256 4,253 8,770 835,819 848,842 $ 25,496 $ 5,805 $ 4,204 $ 35,505 $ 30,845 $ 4,781,587 $ 4,847,937 ACQUIRED Commercial Loans Commercial $ - $ - $ - $ - $ 3,009 $ 72,255 $ 75,264 Commercial Real Estate - - - - 2,666 197,222 199,888 Business Banking 5 15 - 20 665 57,494 58,179 5 15 - 20 6,340 326,971 333,331 Consumer Loans Indirect 518 5 54 577 106 64,540 65,223 Home Equity 190 60 5 255 557 75,904 76,716 Direct 31 - 7 38 33 5,246 5,317 739 65 66 870 696 145,690 147,256 Residential Real Estate Mortgages 1,162 265 671 2,098 3,193 261,456 266,747 $ 1,906 $ 345 $ 737 $ 2,988 $ 10,229 $ 734,117 $ 747,334 Total Loans $ 27,402 $ 6,150 $ 4,941 $ 38,493 $ 41,074 $ 5,515,704 $ 5,595,271 There were no material commitments to extend further credit to borrowers with nonperforming loans. Impaired Loans The methodology used to establish the allowance for loan losses on impaired loans incorporates specific allocations on loans analyzed individually. Classified and nonperforming loans with outstanding balances of $0.5 million or more and all troubled debt restructured loans ("TDRs") are evaluated for impairment through the Company's quarterly status review process. In determining that we will be unable to collect all principal and interest payments due in accordance with the contractual terms of the loan agreements, we consider factors such as payment history and changes in the financial condition of individual borrowers, local economic conditions, historical loss experience and the conditions of the various markets in which the collateral may be liquidated. For loans that are impaired as defined by accounting standards, impairment is measured by one of three methods: 1) the fair value of collateral less cost to sell, 2) present value of expected future cash flows discounted at the loan's original effective interest rate or 3) the loan's observable market price. All impaired loans are reviewed on a quarterly basis for changes in the level of impairment. Any change to the previously recognized impairment loss is recognized as a change to the allowance account and recorded in the consolidated statement of income as a component of the provision for loan losses. The following table provides information on loans specifically evaluated for impairment as of June 30, 2015 and December 31, 2014: June 30, 2015 December 31, 2014 (in thousands) Recorded Investment Balance ( Book) Unpaid Principal Balance (Legal) Related Allowance Recorded Investment Balance ( Book) Unpaid Principal Balance (Legal) Related Allowance ORIGINATED With no related allowance recorded: Commercial Loans Commercial $ 1,815 $ 1,967 $ 1,748 $ 1,901 Commercial Real Estate 4,205 4,216 4,505 4,520 Agricultural 19 25 20 26 Agricultural Real Estate 628 754 1,147 1,441 Business Banking 1,009 1,040 896 1,301 Total Commercial Loans 7,676 8,002 8,316 9,189 Consumer Loans Indirect 15 24 - - Home Equity 6,952 7,713 5,498 6,033 Direct - - - - Total Consumer Loans 6,967 7,737 5,498 6,033 Residential Real Estate Mortgages 5,021 5,533 3,544 3,959 Total 19,664 21,272 17,358 19,181 With an allowance recorded: Commercial Loans Commercial Real Estate $ 4,830 $ 6,687 $ 1,035 $ 2,763 $ 4,611 $ 600 ACQUIRED With no related allowance recorded: Commercial Loans Commercial Real Estate 5,890 7,098 2,666 3,830 With an allowance recorded: Commercial Loans Commercial 2,508 4,668 1,000 3,009 4,668 500 Commercial Real Estate 1,321 1,329 850 - - - Total Commercial Loans 3,829 5,997 1,850 3,009 4,668 500 Total: $ 34,213 $ 41,054 $ 2,885 $ 25,796 $ 32,290 $ 1,100 The following tables summarize the average recorded investments on impaired loans specifically evaluated for impairment and the interest income recognized for the three months ended June 30, 2015 and 2014: For the three months ended June 30, 2015 June 30, 2014 (in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized ORIGINATED Commercial Loans Commercial $ 1,768 $ 61 $ 2,013 $ - Commercial Real Estate 9,060 41 10,062 42 Agricultural 19 - 123 - Agricultural Real Estate 630 12 1,412 12 Business Banking 975 2 548 11 Consumer Loans Indirect 16 - - - Home Equity 6,692 92 5,289 60 Direct 1 - - - Residential Real Estate Mortgage 4,636 33 2,803 26 Total Originated $ 23,797 $ 241 $ 22,250 $ 151 ACQUIRED Commercial Loans Commercial 2,602 - 6,315 - Commercial Real Estate 7,205 - 3,462 - Total Acquired $ 9,807 $ - $ 9,777 $ - Total Loans $ 33,604 $ 241 $ 32,027 $ 151 For the six months ended June 30, 2015 June 30, 2014 (in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized ORIGINATED Commercial Loans Commercial $ 1,742 $ 86 $ 2,025 $ - Commercial Real Estate 9,091 82 10,739 84 Agricultural 19 1 124 1 Agricultural Real Estate 633 23 1,418 23 Business Banking 932 6 429 23 Consumer Loans Indirect 11 - - - Home Equity 6,560 164 4,959 103 Direct 1 - - - Residential Real Estate Mortgage 4,476 63 2,778 50 Total Originated $ 23,465 $ 425 $ 22,472 $ 284 ACQUIRED Commercial Loans Commercial 2,722 - 6,375 - Commercial Real Estate 7,176 - 3,493 - Total Acquired $ 9,898 $ - $ 9,868 $ - Total Loans $ 33,363 $ 425 $ 32,340 $ 284 Credit Quality Indicators The Company has developed an internal loan grading system to evaluate and quantify the Company's loan portfolio with respect to quality and risk. The system focuses on, among other things, financial strength of borrowers, experience and depth of borrower's management, primary and secondary sources of repayment, payment history, nature of the business, and outlook on particular industries. The internal grading system enables the Company to monitor the quality of the entire loan portfolio on a consistent basis and provide management with an early warning system, enabling recognition and response to problem loans and potential problem loans. Commercial Grading System For commercial and agricultural loans, the Company uses a grading system that relies on quantifiable and measurable characteristics when available. This would include comparison of financial strength to available industry averages, comparison of transaction factors (loan terms and conditions) to loan policy, and comparison of credit history to stated repayment terms and industry averages. Some grading factors are necessarily more subjective such as economic and industry factors, regulatory environment, and management. Classified commercial loans consist of loans graded substandard and below. The grading system for commercial and agricultural loans is as follows: ● Doubtful A doubtful loan has a high probability of total or substantial loss, but because of specific pending events that may strengthen the asset, its classification as a loss is deferred. Doubtful borrowers are usually in default, lack adequate liquidity or capital, and lack the resources necessary to remain an operating entity. Pending events can include mergers, acquisitions, liquidations, capital injections, the perfection of liens on additional collateral, the valuation of collateral, and refinancing. Generally, pending events should be resolved within a relatively short period and the ratings will be adjusted based on the new information. Nonaccrual treatment is required for doubtful assets because of the high probability of loss. ● Substandard Substandard loans have a high probability of payment default, or they have other well-defined weaknesses. They require more intensive supervision by bank management. Substandard loans are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity, or marginal capitalization. Repayment may depend on collateral or other credit risk mitigants. For some Substandard loans, the likelihood of full collection of interest and principal may be in doubt and those loans should be placed on nonaccrual. Although Substandard assets in the aggregate will have a distinct potential for loss, an individual asset's loss potential does not have to be distinct for the asset to be rated Substandard. ● Special Mention Special Mention loans have potential weaknesses that may, if not checked or corrected, weaken the asset or inadequately protect the Company's position at some future date. These loans pose elevated risk, but their weakness does not yet justify a Substandard classification. Borrowers may be experiencing adverse operating trends (declining revenues or margins) or may be struggling with an ill-proportioned balance sheet (e.g., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a Special Mention rating. Although a Special Mention loan has a higher probability of default than a pass asset, its default is not imminent. ● Pass Loans graded as Pass encompass all loans not graded as Doubtful, Substandard, or Special Mention. Pass loans are in compliance with loan covenants, and payments are generally made as agreed. Pass loans range from superior quality to fair quality. Business Banking Grading System Business banking loans are graded as either Classified or Non-classified: ● Classified Classified loans are inadequately protected by the current worth and paying capacity of the obligor or, if applicable, the collateral pledged. These loans have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt, or in some cases make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Classified loans have a high probability of payment default, or a high probability of total or substantial loss. These loans require more intensive supervision by management and are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity, or marginal capitalization. Repayment may depend on collateral or other credit risk mitigants. When the likelihood of full collection of interest and principal may be in doubt; classified loans are considered to have a nonaccrual status. In some cases, Classified loans are considered uncollectible and of such little value that their continuance as assets is not warranted. ● Non-classified Loans graded as Non-classified encompass all loans not graded as Classified. Non-classified loans are in compliance with loan covenants, and payments are generally made as agreed and it is expected that such timely payments of principal and interest will continue. Consumer and Residential Mortgage Grading System Consumer and Residential Mortgage loans are graded as either Performing or Nonperforming. Nonperforming loans are loans that are 1) over 90 days past due and interest is still accruing, 2) on nonaccrual status or 3) restructured. All loans not meeting any of these three criteria are considered Performing. The following tables illustrate the Company's credit quality by loan class as of June 30, 2015 and December 31, 2014: Credit Quality Indicators As of June 30, 2015 ORIGINATED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Agricultural Agricultural Real Estate Total Pass $ 579,259 $ 1,100,065 $ 31,935 $ 25,462 $ 1,736,721 Special Mention 11,834 26,706 49 37 38,626 Substandard 39,022 30,184 823 1,225 71,254 Doubtful - - 8 - 8 Total $ 630,115 $ 1,156,955 $ 32,815 $ 26,724 $ 1,846,609 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 383,016 $ 383,016 Classified 16,547 16,547 Total $ 399,563 $ 399,563 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 1,396,001 $ 472,414 $ 54,287 $ 1,922,702 Nonperforming 2,803 5,554 165 8,522 Total $ 1,398,804 $ 477,968 $ 54,452 $ 1,931,224 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 894,247 $ 894,247 Nonperforming 7,760 7,760 Total $ 902,007 $ 902,007 Credit Quality Indicators As of June 30, 2015 ACQUIRED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Total Pass $ 72,110 $ 170,931 $ 243,041 Special Mention 908 6,081 6,989 Substandard 4,644 12,826 17,470 Total $ 77,662 $ 189,838 $ 267,500 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 47,546 $ 47,546 Classified 4,372 4,372 Total $ 51,918 $ 51,918 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 43,692 $ 71,648 $ 4,185 $ 119,525 Nonperforming 125 622 44 791 Total $ 43,817 $ 72,270 $ 4,229 $ 120,316 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 248,624 $ 248,624 Nonperforming 3,127 3,127 Total $ 251,751 $ 251,751 Credit Quality Indicators As of December 31, 2014 ORIGINATED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Agricultural Agricultural Real Estate Total Pass $ 570,884 $ 1,023,856 $ 30,481 $ 23,443 $ 1,648,664 Special Mention 6,022 17,341 275 42 23,680 Substandard 38,241 27,671 2,183 1,489 69,584 Doubtful - - 8 - 8 Total $ 615,147 $ 1,068,868 $ 32,947 $ 24,974 $ 1,741,936 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 379,445 $ 379,445 Classified 18,990 18,990 Total $ 398,435 $ 398,435 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 1,306,095 $ 485,463 $ 55,658 $ 1,847,216 Nonperforming 3,955 7,417 136 11,508 Total $ 1,310,050 $ 492,880 $ 55,794 $ 1,858,724 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 838,816 $ 838,816 Nonperforming 10,026 10,026 Total $ 848,842 $ 848,842 Credit Quality Indicators As of December 31, 2014 ACQUIRED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Total Pass $ 63,630 $ 186,036 $ 249,666 Special Mention 2,840 2,646 5,486 Substandard 8,794 11,206 20,000 Total $ 75,264 $ 199,888 $ 275,152 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 53,264 $ 53,264 Classified 4,915 4,915 Total $ 58,179 $ 58,179 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 65,063 $ 76,154 $ 5,277 $ 146,494 Nonperforming 160 562 40 762 Total $ 65,223 $ 76,716 $ 5,317 $ 147,256 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 262,883 $ 262,883 Nonperforming 3,864 3,864 Total $ 266,747 $ 266,747 Troubled Debt Restructured Loans The Company's loan portfolio includes certain loans that have been modified where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company's loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower's sustained repayment performance for a reasonable period, generally six months. Substantially all of these modifications included one or a combination of the following: an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; temporary reduction in the interest rate; or change in principal. When the Company modifies a loan, management evaluates any possible impairment based on the present value of the expected future cash flows, discounted at the contractual interest rate of the original loan agreement, except when the sole (remaining) source of repayment for the loan is the operation or liquidation of the collateral. In these cases, management uses the current fair value of the collateral, less selling costs, instead of discounted cash flows. If management determines 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. The following tables illustrate the recorded investment and number of modifications for modified loans, including the recorded investment in the loans prior to a modification and the recorded investment in the loans after restructuring for the three and six months ended June 30, 2015 and 2014: Three months ended June 30, 2015 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Commercial 1 $ 1,165 $ 1,165 Small Business 1 190 176 Total Commercial 2 1,355 1,341 Consumer Home Equity 12 1,071 1,128 Total Consumer 12 1,071 1,128 Residential Real Estate 6 370 770 Total Troubled Debt Restructurings 20 $ 2,796 $ 3,239 Three months ended June 30, 2014 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Small Business 2 $ 570 $ 570 Total Commercial 2 570 570 Consumer Indirect 2 69 69 Home Equity 6 503 503 Direct 15 1,213 1,213 Total Consumer 23 1,785 1,785 Residential Real Estate 3 432 432 Total Troubled Debt Restructurings 28 $ 2,787 $ 2,787 Six months ended June 30, 2015 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Commercial 1 $ 1,165 $ 1,165 Small Business 1 190 176 Total Commercial 2 1,355 1,341 Consumer Home Equity 27 2,112 2,132 Direct 4 106 104 Total Consumer 31 2,218 2,236 Residential Real Estate 15 1,072 1,522 Total Troubled Debt Restructurings 48 $ 4,645 $ 5,099 Six months ended June 30, 2014 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Small Business 2 $ 570 $ 570 Total Commercial 2 570 570 Consumer Indirect 2 69 39 Home Equity 8 561 561 Direct 35 2,518 2,518 Total Consumer 45 3,148 3,118 Residential Real Estate 16 1,841 1,841 Total Troubled Debt Restructurings 63 $ 5,559 $ 5,529 The following table illustrates the recorded investment and number of modifications for TDRs within the three and six months ended June 30, 2015 and 2014 where a concession has been made and subsequently defaulted during the period: Three months ended June 30, 2015 Three months ended June

Defined Benefit Postretirement

Defined Benefit Postretirement Plans	6 Months Ended
Defined Benefit Postretirement Plans	Jun. 30, 2015
Defined Benefit Postretirement Plans [Abstract]
Defined Benefit Postretirement Plans	Note 5. Defined Benefit Postretirement Plans The Company has a qualified, noncontributory, defined benefit pension plan ("the Plan") covering substantially all of its employees at June 30, 2015. Benefits paid from the plan are based on age, years of service, compensation and social security benefits, and are determined in accordance with defined formulas. The Company's policy is to fund the pension plan in accordance with Employee Retirement Income Security Act of 1974 ("ERISA") standards. Assets of the plan are invested in publicly traded stocks and bonds. The Company is not required to make contributions to the Plan in 2015, and did not do so during the six months ended June 30, 2015. Market conditions can result in an unusually high degree of volatility and increase the risks and short term liquidity associated with certain investments held by the Plan which could impact the value of these investments. In addition to the Plan, the Company also provides supplemental employee retirement plans to certain current and former executives. These supplemental employee retirement plans and the Plan are collectively referred to herein as "Pension Benefits." Also, the Company provides certain health care benefits for retired employees. Benefits are accrued over the employees' active service period. Only employees that were employed by the Company on or before January 1, 2000 are eligible to receive postretirement health care benefits. These postretirement benefits are referred to herein as "Other Benefits." The components of expense for Pension Benefits and Other Benefits are set forth below (in thousands): Pension Benefits Other Benefits Three months ended June 30, Three months ended June 30, Components of net periodic (benefit) cost: 2015 2014 2015 2014 Service cost $ 655 $ 587 $ 4 $ 4 Interest cost 998 1,040 91 90 Expected return on plan assets (2,150 ) (2,175 ) - - Net amortization 546 25 15 (6 ) Total cost (benefit) $ 49 $ (523 ) $ 110 $ 88 Pension Benefits Other Benefits Six months ended June 30, Six months ended June 30, Components of net periodic (benefit) cost: 2015 2014 2015 2014 Service cost $ 1,310 $ 1,174 $ 8 $ 8 Interest cost 1,996 2,080 182 180 Expected return on plan assets (4,300 ) (4,350 ) - - Net amortization 1,092 50 30 (12 ) Total cost (benefit) $ 98 $ (1,046 ) $ 220 $ 176

Earnings Per Share

Earnings Per Share	6 Months Ended
Earnings Per Share	Jun. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Note 6. Earnings Per Share Basic earnings per share is computed by dividing income available to common shareholders by the weighted average number of common shares outstanding for the period, excluding shares issuable upon the exercise of certain contracts to issue common stock, such as in-the-money stock options. Diluted earnings per share 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 entity (such as the Company's dilutive stock options and restricted stock units). The following is a reconciliation of basic and diluted earnings per share for the periods presented in the consolidated statements of income. Three months ended June 30, 2015 2014 (in thousands, except per share data) Basic EPS: Weighted average common shares outstanding 44,007 43,865 Net income 19,281 27,640 Basic EPS $ 0.44 $ 0.63 Diluted EPS: Weighted average common shares outstanding 44,007 43,865 Dilutive effect of common stock options and restricted stock 523 498 Weighted average common shares and common share equivalents 44,530 44,363 Net income 19,281 27,640 Diluted EPS $ 0.43 $ 0.62 Six months ended June 30, 2015 2014 (in thousands, except per share data) Basic EPS: Weighted average common shares outstanding 44,079 43,829 Net income 37,447 45,649 Basic EPS $ 0.85 $ 1.04 Diluted EPS: Weighted average common shares outstanding 44,079 43,829 Dilutive effect of common stock options and restricted stock 510 500 Weighted average common shares and common share equivalents 44,589 44,329 Net income 37,447 45,649 Diluted EPS $ 0.84 $ 1.03 There were 339,109 stock options for the quarter ended June 30, 2015 and 503,058 stock options for the quarter ended June 30, 2014 that were not considered in the calculation of diluted earnings per share since the stock options' exercise price was greater than the average market price during these periods. There were 340,034 stock options for the six months ended June 30, 2015 and 500,541 stock options for the six months ended June 30, 2014 that were not considered in the calculation of diluted earnings per share since the stock options' exercise price was greater than the average market price during these periods.

Reclassification Adjustments Ou

Reclassification Adjustments Out of Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2015
Reclassification Adjustments Out of Other Comprehensive Income (Loss) [Abstract]
Reclassification Adjustments Out of Other Comprehensive Income (Loss)	Note 7. Reclassification Adjustments Out of Other Comprehensive Income (Loss) The following table summarizes the reclassification adjustments out of accumulated other comprehensive income (loss) (in thousands): Detail About Accumulated Other Comprehensive Income (Loss) Components Amount reclassified from accumulated other comprehensive income (loss) Affected line item in the consolidated statement of comprehensive income (loss) Three months ended June 30, 2015 June 30, 2014 Securities: Gains on available for sale securities $ (26 ) $ (14 ) Net securities (gains) losses Amortization of unrealized gains and losses related to securities transfer 307 - Interest income Tax (benefit) expense (92 ) 6 Income tax expense Net of tax $ 189 $ (8 ) Pension and other benefits: Amortization of net gains $ 567 $ 74 Salaries and employee benefits Amortization of prior service costs (6 ) (55 ) Salaries and employee benefits Tax benefit (219 ) (8 ) Income tax expense Net of tax $ 342 $ 11 Total reclassifications during the period, net of tax $ 531 $ 3 Detail About Accumulated Other Comprehensive Income (Loss) Components Amount reclassified from accumulated other comprehensive income (loss) Affected line item in the consolidated statement of comprehensive income (loss) Six months ended June 30, 2015 June 30, 2014 Securities: Gains on available for sale securities $ (40 ) (21 ) Net securities gains Amortization of unrealized gains and losses related to securities transfer 614 - Interest income Tax (benefit) expense (188 ) 8 Income tax expense Net of tax $ 386 $ (13 ) Pension and other benefits: Amortization of net gains $ 1,133 $ 148 Salaries and employee benefits Amortization of prior service costs (11 ) (110 ) Salaries and employee benefits Tax benefit (438 ) (15 ) Income tax expense Net of tax $ 684 $ 23 Total reclassifications during the period, net of tax $ 1,070 $ 10

Fair Values Measurements and Fa

Fair Values Measurements and Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2015
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value Measurements and Fair Value of Financial Instruments	Note 8. Fair Value Measurements and Fair Value of Financial Instruments U.S. GAAP states that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value measurements are not adjusted for transaction costs. A fair value hierarchy exists within U.S. GAAP that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). A financial instrument's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The types of instruments valued based on quoted market prices in active markets include most U.S. government and agency securities, many other sovereign government obligations, liquid mortgage products, active listed equities and most money market securities. Such instruments are generally classified within level 1 or level 2 of the fair value hierarchy. The Company does not adjust the quoted prices for such instruments. The types of instruments valued based on quoted prices in markets that are not active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency include most investment-grade and high-yield corporate bonds, less liquid mortgage products, less liquid agency securities, less liquid listed equities, state, municipal and provincial obligations, and certain physical commodities. Such instruments are generally classified within level 2 of the fair value hierarchy. Level 3 is for positions that are not traded in active markets or are subject to transfer restrictions. Valuations are adjusted to reflect illiquidity and/or non-transferability, and such adjustments are generally based on available market evidence. In the absence of such evidence, management's best estimate will be used. Management's best estimate relies on both internal and external support on certain Level 3 investments. Management only changes level 3 inputs and assumptions when corroborated by evidence such as transactions in similar instruments, completed or pending third-party transactions in the underlying investment or comparable entities, subsequent rounds of financing, recapitalizations and other transactions across the capital structure, offerings in the equity or debt markets, and changes in financial ratios or cash flows. For the six month period ending June 30, 2015, the Company has made no transfers of assets between Level 1 and Level 2, and has had no Level 3 activity. The following tables set forth the Company's financial assets and liabilities measured on a recurring basis that were accounted for at fair value. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands): June 30, 2015: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of June 30, 2015 Assets: Securities Available for Sale: U.S. Treasury $ 10,014 $ - $ - $ 10,014 Federal Agency - 396,923 - 396,923 State & municipal - 30,360 - 30,360 Mortgage-backed - 354,829 - 354,829 Collateralized mortgage obligations - 321,523 - 321,523 Other securities 7,740 7,860 - 15,600 Total Securities Available for Sale $ 17,754 $ 1,111,495 $ - $ 1,129,249 Trading Securities 8,468 - - 8,468 Interest Rate Swaps - 4,703 - 4,703 Total $ 26,222 $ 1,116,198 $ - $ 1,142,420 Liabilities: Interest Rate Swaps $ - $ 4,703 $ - $ 4,703 Total $ - $ 4,703 $ - $ 4,703 December 31, 2014: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of December 31, 2014 Assets: Securities Available for Sale: U.S. Treasury $ 23,111 $ - $ - $ 23,111 Federal Agency - 329,914 - 329,914 State & municipal - 37,570 - 37,570 Mortgage-backed - 364,727 - 364,727 Collateralized mortgage obligations - 242,129 - 242,129 Other securities 7,612 8,108 - 15,720 Total Securities Available for Sale $ 30,723 $ 982,448 $ - $ 1,013,171 Trading Securities 7,793 - - 7,793 Interest Rate Swaps - 4,707 - 4,707 Total $ 38,516 $ 987,155 $ - $ 1,025,671 Liabilities: Interest Rate Swaps $ - $ 4,707 $ - $ 4,707 Total $ - $ 4,707 $ - $ 4,707 Certain common equity securities are reported at fair value utilizing Level 1 inputs (exchange quoted prices). The majority of the other investment securities are reported at fair value utilizing Level 2 inputs. The prices for these instruments are obtained through an independent pricing service or dealer market participants with whom the Company has historically transacted both purchases and sales of investment securities. Prices obtained from these sources include prices derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond's terms and conditions, among other things. Management reviews the methodologies used in pricing the securities by its third party providers. U.S. GAAP requires disclosure of assets and liabilities measured and recorded at fair value on a nonrecurring basis such as goodwill, loans held for sale, other real estate owned, collateral-dependent impaired loans, mortgage servicing rights, and held-to-maturity securities. The only nonrecurring fair value measurements recorded during the six month period ended June 30, 2015 were related to impaired loans and other real estate owned, which were immaterial. For the six month periods ending June 30, 2015 and June 30, 2014, the Company had $8.7 million and $9.0 million, respectively, of loans recorded at fair value resulting in specific allowance reserves of $2.9 million and $2.1 million, respectively. The Company uses the fair value of underlying collateral, less costs to sell, to estimate the specific reserves for collateral dependent impaired loans. The appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses ranging from 10% to 35%. Based on the valuation techniques used, the fair value measurements for collateral dependent impaired loans are classified as Level 3. The following table sets forth information with regard to estimated fair values of financial instruments at June 30, 2015 and December 31, 2014. This table excludes financial instruments for which the carrying amount approximates fair value. Financial instruments for which the fair value approximates carrying value include cash and cash equivalents, securities available for sale, trading securities, accrued interest receivable, non-maturity deposits, short-term borrowings, accrued interest payable, and interest rate swaps. June 30, 2015 December 31, 2014 (In thousands) Fair Value Hierarchy Carrying amount Estimated fair value Carrying amount Estimated fair value Financial assets Securities held to maturity 2 $ 454,312 $ 454,255 $ 454,361 $ 454,994 Net loans 3 5,705,929 5,728,903 5,528,912 5,584,777 Financial liabilities Time deposits 2 $ 948,154 $ 942,611 $ 1,043,823 $ 1,038,877 Long-term debt 2 130,705 132,559 130,945 132,562 Junior subordinated debt 2 101,196 95,977 101,196 103,770 Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company's entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company's financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on and off balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, the Company has a substantial trust and investment management operation that contributes net fee income annually. The trust and investment management operation is not considered a financial instrument, and its value has not been incorporated into the fair value estimates. Other significant assets and liabilities include the benefits resulting from the low-cost funding of deposit liabilities as compared to the cost of borrowing funds in the market, and premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimate of fair value. Securities Held to Maturity The fair value of the Company's investment securities held to maturity is primarily measured using information from a third party pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond's terms and conditions, among other things. Net Loans The fair value of the Company's loans was estimated by discounting the expected future cash flows using the current interest rates at which similar loans would be made for the same remaining maturities. Loans were first segregated by type, and then further segmented into fixed and variable rate and loan quality categories. Expected future cash flows were projected based on contractual cash flows, adjusted for estimated prepayments. Time Deposits The fair value of time deposits was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. The fair values of the Company's time deposit liabilities do not take into consideration the value of the Company's long-term relationships with depositors, which may have significant value. Long-Term Debt The fair value of long-term debt was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. Junior Subordinated Debt The fair value of junior subordinated debt has been estimated using a discounted cash flow analysis that applies prevailing market interest rates for similar maturity instruments.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2015
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 9. Commitments and Contingencies The Company is a party to financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuating interest rates. These financial instruments include commitments to extend credit, unused lines of credit, and standby letters of credit. Exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to make loans and standby letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit origination guidelines, portfolio maintenance and management procedures as other credit and off-balance sheet products. Commitments to extend credit and unused lines of credit totaled $1.3 billion at June 30, 2015 and $1.2 billion at December 31, 2014. Since commitments to extend credit and unused lines of credit may expire without being fully drawn upon, this amount does not necessarily represent future cash commitments. Collateral obtained upon exercise of the commitment is determined using management's credit evaluation of the borrower and may include accounts receivable, inventory, property, land and other items. The Company guarantees the obligations or performance of customers by issuing standby letters of credit to third parties. These standby letters of credit are frequently issued in support of third party debt, such as corporate debt issuances, industrial revenue bonds and municipal securities. The credit risk involved in issuing standby letters of credit is essentially the same as the credit risk involved in extending loan facilities to customers, and they are subject to the same credit origination guidelines, portfolio maintenance and management procedures as other credit and off-balance sheet products. Typically, these instruments have terms of five years or less and expire unused; therefore, the total amounts do not necessarily represent future cash commitments. Standby letters of credit totaled $32.1 million at June 30, 2015 and $35.2 million at December 31, 2014. As of June 30, 2015, the fair value of standby letters of credit was not significant to the Company's consolidated financial statements. The Company has also entered into commercial letter of credit agreements on behalf of its customers. Under these agreements, the Company, on the request of its customer, opens the letter of credit and makes a commitment to honor draws made under the agreement, whereby the beneficiary is normally the provider of goods and/or services and the Company essentially replaces the customer as the payee. The credit risk involved in issuing commercial letters of credit is essentially the same as the credit risk involved in extending loan facilities to customers, and they are subject to the same credit origination guidelines, portfolio maintenance and management procedures as other credit and off-balance sheet products. Typically, these agreements vary in terms and the total amounts do not necessarily represent future cash commitments. Commercial letters of credit totaled $5.6 million at June 30, 2015 and $22.5 million at December 31, 2014. As of June 30, 2015, the fair value of commercial letters of credit was not significant to the Company's consolidated financial statements.

Description of Business (Polici

Description of Business (Policies)	6 Months Ended
Description of Business (Policies)	Jun. 30, 2015
Description of Business [Abstract]
Nature of Operations	NBT Bancorp Inc. (the "Registrant" or the "Company") is a registered financial holding company incorporated in the state of Delaware in 1986, with its principal headquarters located in Norwich, New York. The principal assets of the Registrant consist of all of the outstanding shares of common stock of its subsidiaries, including: NBT Bank, National Association (the "Bank"), NBT Financial Services, Inc. ("NBT Financial"), NBT Holdings, Inc. ("NBT Holdings"), Hathaway Agency, Inc., and CNBF Capital Trust I, NBT Statutory Trust I, NBT Statutory Trust II, Alliance Financial Capital Trust I, and Alliance Financial Capital Trust II (collectively, the "Trusts"). The Company's principal sources of revenue are the management fees and dividends it receives from the Bank, NBT Financial and NBT Holdings. The Company's business, primarily conducted through the Bank but also through its other subsidiaries, consists of providing commercial banking and financial services to customers in its market area, which includes central and upstate New York, northeastern Pennsylvania, northwestern Vermont, western Massachusetts, southern New Hampshire, and southern Maine. The Company has been, and intends to continue to be, a community-oriented financial institution offering a variety of financial services. The Company's business philosophy is to operate as a community bank with local decision-making, principally in non-metropolitan markets, providing a broad array of banking and financial services to retail, commercial, and municipal customers.

Securities (Policies)

Securities (Policies)	6 Months Ended
Securities (Policies)	Jun. 30, 2015
Securities [Abstract]
Investment, Policy	Management has the intent to hold the securities classified as held to maturity until they mature, at which time it is believed the Company will receive full value for the securities. Furthermore, as of June 30, 2015, management also had the intent to hold, and will not be required to sell, the securities classified as available for sale for a period of time sufficient for a recovery of cost, which may be until maturity. The unrealized losses are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. When necessary, the Company has performed a discounted cash flow analysis to determine whether or not it will receive the contractual principal and interest on certain securities. The fair value is expected to recover as the bonds approach their maturity date or repricing date or if market yields for such investments decline. As of June 30, 2015, management believes the impairments detailed in the table above are temporary and no other-than-temporary impairment losses have been realized in the Company's consolidated statements of income.

Allowance for Loan Losses and21

Allowance for Loan Losses and Credit Quality of Loans (Policies)	6 Months Ended
	Jun. 30, 2015
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Portfolio and class segments	The following table illustrates the portfolio and class segments for the Company's loan portfolio: Portfolio Class Commercial Loans Commercial Commercial Real Estate Agricultural Agricultural Real Estate Business Banking Consumer Loans Indirect Home Equity Direct Residential Real Estate Mortgages
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses is maintained at a level estimated by management to provide adequately for probable incurred losses inherent in the current loan portfolio. The adequacy of the allowance for loan losses is continuously monitored. It is assessed for adequacy using a methodology designed to ensure the level of the allowance reasonably reflects the loan portfolio's risk profile. It is evaluated to ensure that it is sufficient to absorb all reasonably estimable credit losses inherent in the current loan portfolio. To develop and document a systematic methodology for determining the allowance for loan losses, the Company has divided the loan portfolio into three segments, each with different risk characteristics and methodologies for assessing risk. Those segments are further segregated between our loans accounted for under the amortized cost method (referred to as "originated" loans) and loans acquired in a business combination (referred to as "acquired" loans). Each portfolio segment is broken down into class segments where appropriate. Class segments contain unique measurement attributes, risk characteristics and methods for monitoring and assessing risk that are necessary to develop the allowance for loan losses. Unique characteristics such as borrower type, loan type, collateral type, and risk characteristics define each class segment. The following table illustrates the portfolio and class segments for the Company's loan portfolio: Portfolio Class Commercial Loans Commercial Commercial Real Estate Agricultural Agricultural Real Estate Business Banking Consumer Loans Indirect Home Equity Direct Residential Real Estate Mortgages Commercial Loans The Company offers a variety of commercial loan products including commercial (non-real estate), commercial real estate, agricultural, agricultural real estate, and business banking loans. The Company's underwriting analysis for commercial loans typically includes credit verification, independent appraisals, a review of the borrower's financial condition, and a detailed analysis of the borrower's underlying cash flows. Commercial (non-Real Estate) – Commercial Real Estate – Agricultural Agricultural Real Estate Business Banking - Consumer Loans The Company offers a variety of consumer loan products including indirect, home equity, and direct loans. Indirect – Home Equity Direct – Residential Real Estate Mortgages Residential real estate loans consist primarily of loans secured by first or second deeds of trust on primary residences. We originate adjustable-rate and fixed-rate, one-to-four-family residential real estate loans for the construction, purchase or refinancing of a residential mortgage. These loans are collateralized by owner-occupied properties located in the Company's market area. Loans on one-to-four-family residential real estate are generally originated in amounts of no more than 85% of the purchase price or appraised value (whichever is lower), or have private mortgage insurance. The Company's underwriting analysis for residential mortgage loans typically includes credit verification, independent appraisals, and a review of the borrower's financial condition. Mortgage title insurance and hazard insurance are normally required. Construction loans have a unique risk, because they are secured by an incomplete dwelling. This risk is reduced through periodic site inspections, including one at each loan draw period. For purposes of evaluating the adequacy of the allowance, the Company considers a number of significant factors that affect the collectability of the portfolio. For individually analyzed loans, these include estimates of loss exposure, which reflect the facts and circumstances that affect the likelihood of repayment of such loans as of the evaluation date. For homogeneous pools of loans, estimates of the Company's exposure to credit loss reflect a current assessment of a number of factors, which could affect collectability. These factors include: past loss experience; size, trend, composition, and nature of loans; changes in lending policies and procedures, including underwriting standards and collection, charge-offs and recoveries; trends experienced in nonperforming and delinquent loans; current economic conditions in the Company's market; portfolio concentrations that may affect loss experienced across one or more components of the portfolio; the effect of external factors such as competition, legal and regulatory requirements; and the experience, ability, and depth of lending management and staff. In addition, various regulatory agencies, as an integral component of their examination process, periodically review the Company's allowance for loan losses. Such agencies may require the Company to make loan grade changes as well as recognize additions to the allowance based on their examinations. After a thorough consideration of the factors discussed above, any required additions or reductions to the allowance for loan losses are made periodically by charges or credits to the provision for loan losses. These charges or credits are necessary to maintain the allowance at a level which management believes is reasonably reflective of overall inherent risk of probable loss in the portfolio. While management uses available information to recognize losses on loans, additions and reductions of the allowance may fluctuate from one reporting period to another. These fluctuations are reflective of changes in risk associated with portfolio content and/or changes in management's assessment of any or all of the determining factors discussed above.
Troubled debt restructuring	Troubled Debt Restructured Loans The Company's loan portfolio includes certain loans that have been modified where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company's loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower's sustained repayment performance for a reasonable period, generally six months. Substantially all of these modifications included one or a combination of the following: an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; temporary reduction in the interest rate; or change in principal. When the Company modifies a loan, management evaluates any possible impairment based on the present value of the expected future cash flows, discounted at the contractual interest rate of the original loan agreement, except when the sole (remaining) source of repayment for the loan is the operation or liquidation of the collateral. In these cases, management uses the current fair value of the collateral, less selling costs, instead of discounted cash flows. If management determines 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.

Defined Benefit Postretiremen22

Defined Benefit Postretirement Plans (Policies)	6 Months Ended
Defined Benefit Postretirement Plans (Policies)	Jun. 30, 2015
Defined Benefit Postretirement Plans [Abstract]
Postemployment Benefit Plans, Policy	The Company has a qualified, noncontributory, defined benefit pension plan ("the Plan") covering substantially all of its employees at June 30, 2015. Benefits paid from the plan are based on age, years of service, compensation and social security benefits, and are determined in accordance with defined formulas. The Company's policy is to fund the pension plan in accordance with Employee Retirement Income Security Act of 1974 ("ERISA") standards. Assets of the plan are invested in publicly traded stocks and bonds. The Company is not required to make contributions to the Plan in 2015, and did not do so during the six months ended June 30, 2015. Market conditions can result in an unusually high degree of volatility and increase the risks and short term liquidity associated with certain investments held by the Plan which could impact the value of these investments. In addition to the Plan, the Company also provides supplemental employee retirement plans to certain current and former executives. These supplemental employee retirement plans and the Plan are collectively referred to herein as "Pension Benefits." Also, the Company provides certain health care benefits for retired employees. Benefits are accrued over the employees' active service period. Only employees that were employed by the Company on or before January 1, 2000 are eligible to receive postretirement health care benefits. These postretirement benefits are referred to herein as "Other Benefits."

Fair Values Measurements and 23

Fair Values Measurements and Fair Value of Financial Instruments (Policies)	6 Months Ended
	Jun. 30, 2015
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments, Policy	U.S. GAAP states that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value measurements are not adjusted for transaction costs. A fair value hierarchy exists within U.S. GAAP that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). A financial instrument's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The types of instruments valued based on quoted market prices in active markets include most U.S. government and agency securities, many other sovereign government obligations, liquid mortgage products, active listed equities and most money market securities. Such instruments are generally classified within level 1 or level 2 of the fair value hierarchy. The Company does not adjust the quoted prices for such instruments. The types of instruments valued based on quoted prices in markets that are not active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency include most investment-grade and high-yield corporate bonds, less liquid mortgage products, less liquid agency securities, less liquid listed equities, state, municipal and provincial obligations, and certain physical commodities. Such instruments are generally classified within level 2 of the fair value hierarchy. Level 3 is for positions that are not traded in active markets or are subject to transfer restrictions. Valuations are adjusted to reflect illiquidity and/or non-transferability, and such adjustments are generally based on available market evidence. In the absence of such evidence, management's best estimate will be used. Management's best estimate relies on both internal and external support on certain Level 3 investments. Management only changes level 3 inputs and assumptions when corroborated by evidence such as transactions in similar instruments, completed or pending third-party transactions in the underlying investment or comparable entities, subsequent rounds of financing, recapitalizations and other transactions across the capital structure, offerings in the equity or debt markets, and changes in financial ratios or cash flows. For the six month period ending June 30, 2015, the Company has made no transfers of assets between Level 1 and Level 2, and has had no Level 3 activity. Certain common equity securities are reported at fair value utilizing Level 1 inputs (exchange quoted prices). The majority of the other investment securities are reported at fair value utilizing Level 2 inputs. The prices for these instruments are obtained through an independent pricing service or dealer market participants with whom the Company has historically transacted both purchases and sales of investment securities. Prices obtained from these sources include prices derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond's terms and conditions, among other things. Management reviews the methodologies used in pricing the securities by its third party providers. U.S. GAAP requires disclosure of assets and liabilities measured and recorded at fair value on a nonrecurring basis such as goodwill, loans held for sale, other real estate owned, collateral-dependent impaired loans, mortgage servicing rights, and held-to-maturity securities. The only nonrecurring fair value measurements recorded during the six month period ended June 30, 2015 were related to impaired loans and other real estate owned, which were immaterial. For the six month periods ending June 30, 2015 and June 30, 2014, the Company had $8.7 million and $9.0 million, respectively, of loans recorded at fair value resulting in specific allowance reserves of $2.9 million and $2.1 million, respectively. The Company uses the fair value of underlying collateral, less costs to sell, to estimate the specific reserves for collateral dependent impaired loans. The appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses ranging from 10% to 35%. Based on the valuation techniques used, the fair value measurements for collateral dependent impaired loans are classified as Level 3. Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company's entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company's financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on and off balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, the Company has a substantial trust and investment management operation that contributes net fee income annually. The trust and investment management operation is not considered a financial instrument, and its value has not been incorporated into the fair value estimates. Other significant assets and liabilities include the benefits resulting from the low-cost funding of deposit liabilities as compared to the cost of borrowing funds in the market, and premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimate of fair value. Securities Held to Maturity The fair value of the Company's investment securities held to maturity is primarily measured using information from a third party pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond's terms and conditions, among other things. Net Loans The fair value of the Company's loans was estimated by discounting the expected future cash flows using the current interest rates at which similar loans would be made for the same remaining maturities. Loans were first segregated by type, and then further segmented into fixed and variable rate and loan quality categories. Expected future cash flows were projected based on contractual cash flows, adjusted for estimated prepayments. Time Deposits The fair value of time deposits was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. The fair values of the Company's time deposit liabilities do not take into consideration the value of the Company's long-term relationships with depositors, which may have significant value. Long-Term Debt The fair value of long-term debt was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. Junior Subordinated Debt The fair value of junior subordinated debt has been estimated using a discounted cash flow analysis that applies prevailing market interest rates for similar maturity instruments.

Securities (Tables)

Securities (Tables)	6 Months Ended
Securities (Tables)	Jun. 30, 2015
Securities [Abstract]
Amortized cost, estimated fair value, and unrealized gains and losses of securities available for sale	The amortized cost, estimated fair value, and unrealized gains and losses of securities available for sale are as follows: (In thousands) Amortized cost Unrealized gains Unrealized losses Estimated fair value June 30, 2015 U.S. Treasury $ 10,005 $ 9 $ - $ 10,014 Federal Agency 397,197 759 (1,033 ) 396,923 State & municipal 29,881 505 (26 ) 30,360 Mortgage-backed: Government-sponsored enterprises 333,292 5,914 (439 ) 338,767 U.S. government agency securities 15,325 796 (59 ) 16,062 Collateralized mortgage obligations: Government-sponsored enterprises 285,733 1,966 (535 ) 287,164 U.S. government agency securities 33,965 428 (34 ) 34,359 Other securities 12,872 2,870 (142 ) 15,600 Total securities available for sale $ 1,118,270 $ 13,247 $ (2,268 ) $ 1,129,249 December 31, 2014 U.S. Treasury $ 23,041 $ 70 $ - $ 23,111 Federal Agency 332,193 327 (2,606 ) 329,914 State & municipal 37,035 587 (52 ) 37,570 Mortgage-backed: Government-sponsored enterprises 339,190 7,597 (224 ) 346,563 U.S. government agency securities 17,367 863 (66 ) 18,164 Collateralized mortgage obligations: Government-sponsored enterprises 199,837 1,828 (234 ) 201,431 U.S. government agency securities 40,237 497 (36 ) 40,698 Other securities 12,818 3,054 (152 ) 15,720 Total securities available for sale $ 1,001,718 $ 14,823 $ (3,370 ) $ 1,013,171
Amortized cost, estimated fair value, and unrealized gains and losses of securities held to maturity	The amortized cost, estimated fair value, and unrealized gains and losses of securities held to maturity are as follows: (In thousands) Amortized cost Unrealized gains Unrealized losses Estimated fair value June 30, 2015 Mortgage-backed: Government-sponsored enterprises $ 10,049 $ - $ (142 ) $ 9,907 U.S. government agency securities 695 118 - 813 Collateralized mortgage obligations: Government-sponsored enterprises 295,510 1,769 (1,826 ) 295,453 State & municipal 148,058 466 (442 ) 148,082 Total securities held to maturity $ 454,312 $ 2,353 $ (2,410 ) $ 454,255 December 31, 2014 Mortgage-backed: Government-sponsored enterprises $ 755 $ 113 $ - $ 868 Collateralized mortgage obligations: Government-sponsored enterprises 317,628 1,934 (1,965 ) 317,597 State & municipal 135,978 674 (123 ) 136,529 Total securities held to maturity $ 454,361 $ 2,721 $ (2,088 ) $ 454,994
Investment securities with unrealized losses	The following table sets forth information with regard to investment securities with unrealized losses for the periods presented: Less than 12 months 12 months or longer Total Security Type: Fair Value Unrealized losses Number of Positions Fair Value Unrealized losses Number of Positions Fair Value Unrealized losses Number of Positions June 30, 2015 Investment securities available for sale: Federal agency $ 146,403 $ (765 ) 13 $ 29,732 $ (268 ) 3 $ 176,135 $ (1,033 ) 16 State & municipal 6,184 (26 ) 14 - - - 6,184 (26 ) 14 Mortgage-backed 57,745 (439 ) 28 4,571 (59 ) 17 62,316 (498 ) 45 Collateralized mortgage obligations 87,849 (531 ) 9 5,452 (38 ) 4 93,301 (569 ) 13 Other securities - - - 3,211 (142 ) 2 3,211 (142 ) 2 Total securities with unrealized losses $ 298,181 $ (1,761 ) 64 $ 42,966 $ (507 ) 26 $ 341,147 $ (2,268 ) 90 June 30, 2015 Investment securities held to maturity: Mortgage-backed $ 9,907 $ (142 ) 1 $ - $ - - $ 9,907 $ (142 ) 1 Collateralized mortgage obligations 76,008 (306 ) 8 44,136 (1,520 ) 4 120,144 (1,826 ) 12 State & municipal 43,095 (442 ) 89 - - - 43,095 (442 ) 89 Total securities with unrealized losses $ 129,010 $ (890 ) 98 $ 44,136 $ (1,520 ) 4 $ 173,146 $ (2,410 ) 102 December 31, 2014 Investment securities available for sale: Federal agency $ 66,528 $ (226 ) 8 $ 198,151 $ (2,380 ) 16 $ 264,679 $ (2,606 ) 24 State & municipal 8,818 (42 ) 33 1,321 (10 ) 5 10,139 (52 ) 38 Mortgage-backed 10,400 (36 ) 10 35,565 (254 ) 31 45,965 (290 ) 41 Collateralized mortgage obligations 57,682 (196 ) 8 6,598 (74 ) 4 64,280 (270 ) 12 Other securities - - - 3,201 (152 ) 2 3,201 (152 ) 2 Total securities with unrealized losses $ 143,428 $ (500 ) 59 $ 244,836 $ (2,870 ) 58 $ 388,264 $ (3,370 ) 117 December 31, 2014 Investment securities held to maturity: Collateralized mortgage obligations $ 26,052 $ (49 ) 2 $ 46,415 $ (1,916 ) 4 $ 72,467 $ (1,965 ) 6 State & municipal 43,514 (116 ) 110 1,619 (7 ) 6 45,133 (123 ) 116 Total securities with unrealized losses $ 69,566 $ (165 ) 112 $ 48,034 $ (1,923 ) 10 $ 117,600 $ (2,088 ) 122
Contractual maturities of debt securities	The following tables set forth information with regard to contractual maturities of debt securities at June 30, 2015: (In thousands) Amortized cost Estimated fair value Debt securities classified as available for sale Within one year $ 13,981 $ 14,032 From one to five years 412,442 413,423 From five to ten years 150,200 152,606 After ten years 528,775 533,588 $ 1,105,398 $ 1,113,649 Debt securities classified as held to maturity Within one year $ 24,317 $ 24,328 From one to five years 15,730 15,811 From five to ten years 99,778 99,818 After ten years 314,487 314,298 $ 454,312 $ 454,255

Allowance for Loan Losses and25

Allowance for Loan Losses and Credit Quality of Loans (Tables)	6 Months Ended
	Jun. 30, 2015
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Portfolio and class segments	The following table illustrates the portfolio and class segments for the Company's loan portfolio: Portfolio Class Commercial Loans Commercial Commercial Real Estate Agricultural Agricultural Real Estate Business Banking Consumer Loans Indirect Home Equity Direct Residential Real Estate Mortgages
Allowance for loan losses by portfolio	The following tables illustrate the changes in the allowance for loan losses by our portfolio segments for the three and six months ended June 30, 2015 and 2014: Three months ended June 30, Commercial Loans Consumer Loans Residential Real Estate Mortgages Unallocated Total Balance as of March 31, 2015 $ 31,278 $ 26,156 $ 7,698 $ 227 $ 65,359 Charge-offs (584 ) (4,275 ) (509 ) - (5,368 ) Recoveries 280 697 93 - 1,070 Provision (2,648 ) 5,736 999 (189 ) 3,898 Ending Balance as of June 30, 2015 $ 28,326 $ 28,314 $ 8,281 $ 38 $ 64,959 Balance as of March 31, 2014 $ 34,437 $ 28,436 $ 6,225 $ 336 $ 69,434 Charge-offs (1,427 ) (3,648 ) (165 ) - (5,240 ) Recoveries 314 714 146 - 1,174 Provision 1,799 2,471 (1 ) (103 ) 4,166 Ending Balance as of June 30, 2014 $ 35,123 $ 27,973 $ 6,205 $ 233 $ 69,534 Six months ended June 30, Commercial Loans Consumer Loans Residential Real Estate Mortgages Unallocated Total Balance as of December 31, 2014 $ 32,433 $ 26,720 $ 7,130 $ 76 $ 66,359 Charge-offs (1,382 ) (8,653 ) (1,013 ) - (11,048 ) Recoveries 514 1,445 149 - 2,108 Provision (3,239 ) 8,802 2,015 (38 ) 7,540 Ending Balance as of June 30, 2015 $ 28,326 $ 28,314 $ 8,281 $ 38 $ 64,959 Balance as of December 31, 2013 $ 35,090 $ 27,694 $ 6,520 $ 130 $ 69,434 Charge-offs (1,906 ) (7,680 ) (484 ) - (10,070 ) Recoveries 713 1,455 240 - 2,408 Provision 1,226 6,504 (71 ) 103 7,762 Ending Balance as of June 30, 2014 $ 35,123 $ 27,973 $ 6,205 $ 233 $ 69,534 The following tables illustrate the allowance for loan losses and the recorded investment by portfolio segments as of June 30, 2015 and December 31, 2014: Allowance for Loan Losses and Recorded Investment in Loans (in thousands) Commercial Loans Consumer Loans Residential Real Estate Mortgages Unallocated Total As of June 30, 2015 Allowance for loan losses $ 28,326 $ 28,314 $ 8,281 $ 38 $ 64,959 Allowance for loans individually evaluated for impairment 2,885 - - 2,885 Allowance for loans collectively evaluated for impairment $ 25,441 $ 28,314 $ 8,281 $ 38 $ 62,074 Ending balance of loans $ 2,565,590 $ 2,051,540 $ 1,153,758 $ 5,770,888 Ending balance of originated loans individually evaluated for impairment 12,506 6,967 5,021 24,494 Ending balance of acquired loans individually evaluated for impairment 9,719 - - 9,719 Ending balance of acquired loans collectively evaluated for impairment 309,699 120,316 251,751 681,766 Ending balance of originated loans collectively evaluated for impairment $ 2,233,666 $ 1,924,257 $ 896,986 $ 5,054,909 As of December 31, 2014 Allowance for loan losses $ 32,433 $ 26,720 $ 7,130 $ 76 $ 66,359 Allowance for loans individually evaluated for impairment 1,100 - - 1,100 Allowance for loans collectively evaluated for impairment $ 31,333 $ 26,720 $ 7,130 $ 76 $ 65,259 Ending balance of loans $ 2,473,702 $ 2,005,980 $ 1,115,589 $ 5,595,271 Ending balance of originated loans individually evaluated for impairment 11,079 5,498 3,544 20,121 Ending balance of acquired loans individually evaluated for impairment 5,675 - - 5,675 Ending balance of acquired loans collectively evaluated for impairment 327,656 147,256 266,747 741,659 Ending balance of originated loans collectively evaluated for impairment $ 2,129,292 $ 1,853,226 $ 845,298 $ 4,827,816
Past due and nonperforming loans by loan class	The following tables set forth information with regard to past due and nonperforming loans by loan class as of June 30, 2015 and December 31, 2014: Age Analysis of Past Due Financing Receivables As of June 30, 2015 (in thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Non-Accrual Current Recorded Total Loans ORIGINATED Commercial Loans Commercial $ 268 $ 7 $ - $ 275 $ 22 $ 629,818 $ 630,115 Commercial Real Estate 1,274 28 - 1,302 6,825 1,148,828 1,156,955 Agricultural 3 67 - 70 1,041 31,704 32,815 Agricultural Real Estate 18 - - 18 326 26,380 26,724 Business Banking 1,478 77 - 1,555 5,701 392,307 399,563 3,041 179 - 3,220 13,915 2,229,037 2,246,172 Consumer Loans Indirect 14,212 3,035 1,250 18,497 1,553 1,378,754 1,398,804 Home Equity 4,941 1,172 328 6,441 5,226 466,301 477,968 Direct 348 111 106 565 59 53,828 54,452 19,501 4,318 1,684 25,503 6,838 1,898,883 1,931,224 Residential Real Estate Mortgages 2,869 962 174 4,005 7,586 890,416 902,007 $ 25,411 $ 5,459 $ 1,858 $ 32,728 $ 28,339 $ 5,018,336 $ 5,079,403 ACQUIRED Commercial Loans Commercial $ - $ - $ - $ - $ 2,509 $ 75,153 $ 77,662 Commercial Real Estate - - - - 7,204 182,634 189,838 Business Banking 181 5 - 186 452 51,280 51,918 181 5 - 186 10,165 309,067 319,418 Consumer Loans Indirect 242 32 - 274 125 43,418 43,817 Home Equity 130 61 67 258 555 71,457 72,270 Direct 21 34 8 63 36 4,130 4,229 393 127 75 595 716 119,005 120,316 Residential Real Estate Mortgages 1,009 406 61 1,476 3,066 247,209 251,751 $ 1,583 $ 538 $ 136 $ 2,257 $ 13,947 $ 675,281 $ 691,485 Total Loans $ 26,994 $ 5,997 $ 1,994 $ 34,985 $ 42,286 $ 5,693,617 $ 5,770,888 Age Analysis of Past Due Financing Receivables As of December 31, 2014 (in thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Non-Accrual Current Recorded Total Loans ORIGINATED Commercial Loans Commercial $ - $ 735 $ - $ 735 $ 1,012 $ 613,400 $ 615,147 Commercial Real Estate 192 - - 192 4,127 1,064,549 1,068,868 Agricultural - - - - 817 32,130 32,947 Agricultural Real Estate 19 - - 19 565 24,390 24,974 Business Banking 799 235 84 1,118 6,910 390,407 398,435 1,010 970 84 2,064 13,431 2,124,876 2,140,371 Consumer Loans Indirect 16,434 3,154 1,991 21,579 1,964 1,286,507 1,310,050 Home Equity 4,591 1,428 821 6,840 6,596 479,444 492,880 Direct 560 157 52 769 84 54,941 55,794 21,585 4,739 2,864 29,188 8,644 1,820,892 1,858,724 Residential Real Estate Mortgages 2,901 96 1,256 4,253 8,770 835,819 848,842 $ 25,496 $ 5,805 $ 4,204 $ 35,505 $ 30,845 $ 4,781,587 $ 4,847,937 ACQUIRED Commercial Loans Commercial $ - $ - $ - $ - $ 3,009 $ 72,255 $ 75,264 Commercial Real Estate - - - - 2,666 197,222 199,888 Business Banking 5 15 - 20 665 57,494 58,179 5 15 - 20 6,340 326,971 333,331 Consumer Loans Indirect 518 5 54 577 106 64,540 65,223 Home Equity 190 60 5 255 557 75,904 76,716 Direct 31 - 7 38 33 5,246 5,317 739 65 66 870 696 145,690 147,256 Residential Real Estate Mortgages 1,162 265 671 2,098 3,193 261,456 266,747 $ 1,906 $ 345 $ 737 $ 2,988 $ 10,229 $ 734,117 $ 747,334 Total Loans $ 27,402 $ 6,150 $ 4,941 $ 38,493 $ 41,074 $ 5,515,704 $ 5,595,271
Impaired loans and specific reserve allocations	The following table provides information on loans specifically evaluated for impairment as of June 30, 2015 and December 31, 2014: June 30, 2015 December 31, 2014 (in thousands) Recorded Investment Balance ( Book) Unpaid Principal Balance (Legal) Related Allowance Recorded Investment Balance ( Book) Unpaid Principal Balance (Legal) Related Allowance ORIGINATED With no related allowance recorded: Commercial Loans Commercial $ 1,815 $ 1,967 $ 1,748 $ 1,901 Commercial Real Estate 4,205 4,216 4,505 4,520 Agricultural 19 25 20 26 Agricultural Real Estate 628 754 1,147 1,441 Business Banking 1,009 1,040 896 1,301 Total Commercial Loans 7,676 8,002 8,316 9,189 Consumer Loans Indirect 15 24 - - Home Equity 6,952 7,713 5,498 6,033 Direct - - - - Total Consumer Loans 6,967 7,737 5,498 6,033 Residential Real Estate Mortgages 5,021 5,533 3,544 3,959 Total 19,664 21,272 17,358 19,181 With an allowance recorded: Commercial Loans Commercial Real Estate $ 4,830 $ 6,687 $ 1,035 $ 2,763 $ 4,611 $ 600 ACQUIRED With no related allowance recorded: Commercial Loans Commercial Real Estate 5,890 7,098 2,666 3,830 With an allowance recorded: Commercial Loans Commercial 2,508 4,668 1,000 3,009 4,668 500 Commercial Real Estate 1,321 1,329 850 - - - Total Commercial Loans 3,829 5,997 1,850 3,009 4,668 500 Total: $ 34,213 $ 41,054 $ 2,885 $ 25,796 $ 32,290 $ 1,100 The following tables summarize the average recorded investments on impaired loans specifically evaluated for impairment and the interest income recognized for the three months ended June 30, 2015 and 2014: For the three months ended June 30, 2015 June 30, 2014 (in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized ORIGINATED Commercial Loans Commercial $ 1,768 $ 61 $ 2,013 $ - Commercial Real Estate 9,060 41 10,062 42 Agricultural 19 - 123 - Agricultural Real Estate 630 12 1,412 12 Business Banking 975 2 548 11 Consumer Loans Indirect 16 - - - Home Equity 6,692 92 5,289 60 Direct 1 - - - Residential Real Estate Mortgage 4,636 33 2,803 26 Total Originated $ 23,797 $ 241 $ 22,250 $ 151 ACQUIRED Commercial Loans Commercial 2,602 - 6,315 - Commercial Real Estate 7,205 - 3,462 - Total Acquired $ 9,807 $ - $ 9,777 $ - Total Loans $ 33,604 $ 241 $ 32,027 $ 151 For the six months ended June 30, 2015 June 30, 2014 (in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized ORIGINATED Commercial Loans Commercial $ 1,742 $ 86 $ 2,025 $ - Commercial Real Estate 9,091 82 10,739 84 Agricultural 19 1 124 1 Agricultural Real Estate 633 23 1,418 23 Business Banking 932 6 429 23 Consumer Loans Indirect 11 - - - Home Equity 6,560 164 4,959 103 Direct 1 - - - Residential Real Estate Mortgage 4,476 63 2,778 50 Total Originated $ 23,465 $ 425 $ 22,472 $ 284 ACQUIRED Commercial Loans Commercial 2,722 - 6,375 - Commercial Real Estate 7,176 - 3,493 - Total Acquired $ 9,898 $ - $ 9,868 $ - Total Loans $ 33,363 $ 425 $ 32,340 $ 284
Financing receivable credit quality by loan class	The following tables illustrate the Company's credit quality by loan class as of June 30, 2015 and December 31, 2014: Credit Quality Indicators As of June 30, 2015 ORIGINATED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Agricultural Agricultural Real Estate Total Pass $ 579,259 $ 1,100,065 $ 31,935 $ 25,462 $ 1,736,721 Special Mention 11,834 26,706 49 37 38,626 Substandard 39,022 30,184 823 1,225 71,254 Doubtful - - 8 - 8 Total $ 630,115 $ 1,156,955 $ 32,815 $ 26,724 $ 1,846,609 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 383,016 $ 383,016 Classified 16,547 16,547 Total $ 399,563 $ 399,563 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 1,396,001 $ 472,414 $ 54,287 $ 1,922,702 Nonperforming 2,803 5,554 165 8,522 Total $ 1,398,804 $ 477,968 $ 54,452 $ 1,931,224 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 894,247 $ 894,247 Nonperforming 7,760 7,760 Total $ 902,007 $ 902,007 Credit Quality Indicators As of June 30, 2015 ACQUIRED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Total Pass $ 72,110 $ 170,931 $ 243,041 Special Mention 908 6,081 6,989 Substandard 4,644 12,826 17,470 Total $ 77,662 $ 189,838 $ 267,500 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 47,546 $ 47,546 Classified 4,372 4,372 Total $ 51,918 $ 51,918 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 43,692 $ 71,648 $ 4,185 $ 119,525 Nonperforming 125 622 44 791 Total $ 43,817 $ 72,270 $ 4,229 $ 120,316 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 248,624 $ 248,624 Nonperforming 3,127 3,127 Total $ 251,751 $ 251,751 Credit Quality Indicators As of December 31, 2014 ORIGINATED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Agricultural Agricultural Real Estate Total Pass $ 570,884 $ 1,023,856 $ 30,481 $ 23,443 $ 1,648,664 Special Mention 6,022 17,341 275 42 23,680 Substandard 38,241 27,671 2,183 1,489 69,584 Doubtful - - 8 - 8 Total $ 615,147 $ 1,068,868 $ 32,947 $ 24,974 $ 1,741,936 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 379,445 $ 379,445 Classified 18,990 18,990 Total $ 398,435 $ 398,435 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 1,306,095 $ 485,463 $ 55,658 $ 1,847,216 Nonperforming 3,955 7,417 136 11,508 Total $ 1,310,050 $ 492,880 $ 55,794 $ 1,858,724 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 838,816 $ 838,816 Nonperforming 10,026 10,026 Total $ 848,842 $ 848,842 Credit Quality Indicators As of December 31, 2014 ACQUIRED Commercial Credit Exposure By Internally Assigned Grade: Commercial Commercial Real Estate Total Pass $ 63,630 $ 186,036 $ 249,666 Special Mention 2,840 2,646 5,486 Substandard 8,794 11,206 20,000 Total $ 75,264 $ 199,888 $ 275,152 Business Banking Credit Exposure By Internally Assigned Grade: Business Banking Total Non-classified $ 53,264 $ 53,264 Classified 4,915 4,915 Total $ 58,179 $ 58,179 Consumer Credit Exposure By Payment Activity: Indirect Home Equity Direct Total Performing $ 65,063 $ 76,154 $ 5,277 $ 146,494 Nonperforming 160 562 40 762 Total $ 65,223 $ 76,716 $ 5,317 $ 147,256 Residential Mortgage Credit Exposure By Payment Activity: Residential Mortgage Total Performing $ 262,883 $ 262,883 Nonperforming 3,864 3,864 Total $ 266,747 $ 266,747
Troubled debt restructurings on financing receivables	The following tables illustrate the recorded investment and number of modifications for modified loans, including the recorded investment in the loans prior to a modification and the recorded investment in the loans after restructuring for the three and six months ended June 30, 2015 and 2014: Three months ended June 30, 2015 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Commercial 1 $ 1,165 $ 1,165 Small Business 1 190 176 Total Commercial 2 1,355 1,341 Consumer Home Equity 12 1,071 1,128 Total Consumer 12 1,071 1,128 Residential Real Estate 6 370 770 Total Troubled Debt Restructurings 20 $ 2,796 $ 3,239 Three months ended June 30, 2014 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Small Business 2 $ 570 $ 570 Total Commercial 2 570 570 Consumer Indirect 2 69 69 Home Equity 6 503 503 Direct 15 1,213 1,213 Total Consumer 23 1,785 1,785 Residential Real Estate 3 432 432 Total Troubled Debt Restructurings 28 $ 2,787 $ 2,787 Six months ended June 30, 2015 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Commercial 1 $ 1,165 $ 1,165 Small Business 1 190 176 Total Commercial 2 1,355 1,341 Consumer Home Equity 27 2,112 2,132 Direct 4 106 104 Total Consumer 31 2,218 2,236 Residential Real Estate 15 1,072 1,522 Total Troubled Debt Restructurings 48 $ 4,645 $ 5,099 Six months ended June 30, 2014 Number of contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial Small Business 2 $ 570 $ 570 Total Commercial 2 570 570 Consumer Indirect 2 69 39 Home Equity 8 561 561 Direct 35 2,518 2,518 Total Consumer 45 3,148 3,118 Residential Real Estate 16 1,841 1,841 Total Troubled Debt Restructurings 63 $ 5,559 $ 5,529 The following table illustrates the recorded investment and number of modifications for TDRs within the three and six months ended June 30, 2015 and 2014 where a concession has been made and subsequently defaulted during the period: Three months ended June 30, 2015 Three months ended June 30, 2014 Number of contracts Recorded Investment Number of contracts Recorded Investment Consumer Home Equity - $ - 2 $ 300 Direct - - 1 43 Total Consumer - - 3 343 Total Troubled Debt Restructurings - $ - 3 $ 343 Six months ended June 30, 2015 Six months ended June 30, 2014 Number of contracts Recorded Investment Number of contracts Recorded Investment Consumer Home Equity 4 $ 233 2 $ 300 Direct - - 5 235 Total Consumer 4 233 7 535 Residential Real Estate - - 1 70 Total Troubled Debt Restructurings 4 $ 233 8 $ 605

Defined Benefit Postretiremen26

Defined Benefit Postretirement Plans (Tables)	6 Months Ended
Defined Benefit Postretirement Plans (Tables)	Jun. 30, 2015
Defined Benefit Postretirement Plans [Abstract]
Components of Net Periodic Pension Benefits and Other Benefit Costs	The components of expense for Pension Benefits and Other Benefits are set forth below (in thousands): Pension Benefits Other Benefits Three months ended June 30, Three months ended June 30, Components of net periodic (benefit) cost: 2015 2014 2015 2014 Service cost $ 655 $ 587 $ 4 $ 4 Interest cost 998 1,040 91 90 Expected return on plan assets (2,150 ) (2,175 ) - - Net amortization 546 25 15 (6 ) Total cost (benefit) $ 49 $ (523 ) $ 110 $ 88 Pension Benefits Other Benefits Six months ended June 30, Six months ended June 30, Components of net periodic (benefit) cost: 2015 2014 2015 2014 Service cost $ 1,310 $ 1,174 $ 8 $ 8 Interest cost 1,996 2,080 182 180 Expected return on plan assets (4,300 ) (4,350 ) - - Net amortization 1,092 50 30 (12 ) Total cost (benefit) $ 98 $ (1,046 ) $ 220 $ 176

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
Earnings Per Share (Tables)	Jun. 30, 2015
Earnings Per Share [Abstract]
Reconciliation of Basic and Diluted Earnings per Share	The following is a reconciliation of basic and diluted earnings per share for the periods presented in the consolidated statements of income. Three months ended June 30, 2015 2014 (in thousands, except per share data) Basic EPS: Weighted average common shares outstanding 44,007 43,865 Net income 19,281 27,640 Basic EPS $ 0.44 $ 0.63 Diluted EPS: Weighted average common shares outstanding 44,007 43,865 Dilutive effect of common stock options and restricted stock 523 498 Weighted average common shares and common share equivalents 44,530 44,363 Net income 19,281 27,640 Diluted EPS $ 0.43 $ 0.62 Six months ended June 30, 2015 2014 (in thousands, except per share data) Basic EPS: Weighted average common shares outstanding 44,079 43,829 Net income 37,447 45,649 Basic EPS $ 0.85 $ 1.04 Diluted EPS: Weighted average common shares outstanding 44,079 43,829 Dilutive effect of common stock options and restricted stock 510 500 Weighted average common shares and common share equivalents 44,589 44,329 Net income 37,447 45,649 Diluted EPS $ 0.84 $ 1.03

Reclassification Adjustments 28

Reclassification Adjustments Out of Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2015
Reclassification Adjustments Out of Other Comprehensive Income (Loss) [Abstract]
Reclassification out of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the reclassification adjustments out of accumulated other comprehensive income (loss) (in thousands): Detail About Accumulated Other Comprehensive Income (Loss) Components Amount reclassified from accumulated other comprehensive income (loss) Affected line item in the consolidated statement of comprehensive income (loss) Three months ended June 30, 2015 June 30, 2014 Securities: Gains on available for sale securities $ (26 ) $ (14 ) Net securities (gains) losses Amortization of unrealized gains and losses related to securities transfer 307 - Interest income Tax (benefit) expense (92 ) 6 Income tax expense Net of tax $ 189 $ (8 ) Pension and other benefits: Amortization of net gains $ 567 $ 74 Salaries and employee benefits Amortization of prior service costs (6 ) (55 ) Salaries and employee benefits Tax benefit (219 ) (8 ) Income tax expense Net of tax $ 342 $ 11 Total reclassifications during the period, net of tax $ 531 $ 3 Detail About Accumulated Other Comprehensive Income (Loss) Components Amount reclassified from accumulated other comprehensive income (loss) Affected line item in the consolidated statement of comprehensive income (loss) Six months ended June 30, 2015 June 30, 2014 Securities: Gains on available for sale securities $ (40 ) (21 ) Net securities gains Amortization of unrealized gains and losses related to securities transfer 614 - Interest income Tax (benefit) expense (188 ) 8 Income tax expense Net of tax $ 386 $ (13 ) Pension and other benefits: Amortization of net gains $ 1,133 $ 148 Salaries and employee benefits Amortization of prior service costs (11 ) (110 ) Salaries and employee benefits Tax benefit (438 ) (15 ) Income tax expense Net of tax $ 684 $ 23 Total reclassifications during the period, net of tax $ 1,070 $ 10

Fair Values Measurements and 29

Fair Values Measurements and Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis	The following tables set forth the Company's financial assets and liabilities measured on a recurring basis that were accounted for at fair value. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands): June 30, 2015: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of June 30, 2015 Assets: Securities Available for Sale: U.S. Treasury $ 10,014 $ - $ - $ 10,014 Federal Agency - 396,923 - 396,923 State & municipal - 30,360 - 30,360 Mortgage-backed - 354,829 - 354,829 Collateralized mortgage obligations - 321,523 - 321,523 Other securities 7,740 7,860 - 15,600 Total Securities Available for Sale $ 17,754 $ 1,111,495 $ - $ 1,129,249 Trading Securities 8,468 - - 8,468 Interest Rate Swaps - 4,703 - 4,703 Total $ 26,222 $ 1,116,198 $ - $ 1,142,420 Liabilities: Interest Rate Swaps $ - $ 4,703 $ - $ 4,703 Total $ - $ 4,703 $ - $ 4,703 December 31, 2014: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of December 31, 2014 Assets: Securities Available for Sale: U.S. Treasury $ 23,111 $ - $ - $ 23,111 Federal Agency - 329,914 - 329,914 State & municipal - 37,570 - 37,570 Mortgage-backed - 364,727 - 364,727 Collateralized mortgage obligations - 242,129 - 242,129 Other securities 7,612 8,108 - 15,720 Total Securities Available for Sale $ 30,723 $ 982,448 $ - $ 1,013,171 Trading Securities 7,793 - - 7,793 Interest Rate Swaps - 4,707 - 4,707 Total $ 38,516 $ 987,155 $ - $ 1,025,671 Liabilities: Interest Rate Swaps $ - $ 4,707 $ - $ 4,707 Total $ - $ 4,707 $ - $ 4,707
Fair Value of Financial Instruments By Balance Sheet Grouping	The following table sets forth information with regard to estimated fair values of financial instruments at June 30, 2015 and December 31, 2014. This table excludes financial instruments for which the carrying amount approximates fair value. Financial instruments for which the fair value approximates carrying value include cash and cash equivalents, securities available for sale, trading securities, accrued interest receivable, non-maturity deposits, short-term borrowings, accrued interest payable, and interest rate swaps. June 30, 2015 December 31, 2014 (In thousands) Fair Value Hierarchy Carrying amount Estimated fair value Carrying amount Estimated fair value Financial assets Securities held to maturity 2 $ 454,312 $ 454,255 $ 454,361 $ 454,994 Net loans 3 5,705,929 5,728,903 5,528,912 5,584,777 Financial liabilities Time deposits 2 $ 948,154 $ 942,611 $ 1,043,823 $ 1,038,877 Long-term debt 2 130,705 132,559 130,945 132,562 Junior subordinated debt 2 101,196 95,977 101,196 103,770

Securities (Details)

Securities (Details) $ in Thousands	Jun. 30, 2015USD ($)Position	Dec. 31, 2014USD ($)Position
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 1,118,270	$ 1,001,718
Unrealized gains	13,247	14,823
Unrealized losses	(2,268)	(3,370)
Estimated fair value	1,129,249	1,013,171
Amortized costs of securities available for sale pledged to secure public deposits	1,400,000	1,400,000
Amortized costs of securities available for sale pledged as collateral for repurchase agreements	172,200	208,800
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	298,181	143,428
12 Months or Longer, Fair Value	42,966	244,836
Total, Fair Value	341,147	388,264
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months Unrealized Losses	(1,761)	(500)
12 months or longer Unrealized Losses	(507)	(2,870)
Total Unrealized Losses	$ (2,268)	$ (3,370)
Unrealized Loss Position, Number of Positions [Abstract]
Less Than 12 Months, Number of Positions \| Position	64	59
12 Months or Longer, Number of Positions \| Position	26	58
Total, Number of Positions \| Position	90	117
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 454,312	$ 454,361
Unrealized gains	2,353	2,721
Unrealized losses	(2,410)	(2,088)
Estimated fair value	454,255	454,994
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	129,010	69,566
12 Months or Longer, Fair Value	44,136	48,034
Total, Fair Value	173,146	117,600
Unrealized Loss Position, Unrealized Losses [Abstract]
Less Than 12 Months, Unrealized Losses	(890)	(165)
12 Months or Longer, Unrealized Losses	(1,520)	(1,923)
Total, Unrealized Losses	$ (2,410)	$ (2,088)
Unrealized Loss Position, Number of Positions [Abstract]
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year \| Position	98	112
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater Than or Equal to One Year \| Position	4	10
Total, Number of Positions \| Position	102	122
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]
Within one year	$ 13,981
From one to five years	412,442
From five to ten years	150,200
After ten years	528,775
Total, Amortized Cost	1,105,398
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Within one year	14,032
From one to five years	413,423
From five to ten years	152,606
After ten years	533,588
Total, Fair Value	1,113,649
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Within one year	24,317
From one to five years	15,730
From five to ten years	99,778
After ten years	314,487
Amortized cost	454,312	$ 454,361
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Within one year	24,328
From one to five years	15,811
From five to ten years	99,818
After ten years	314,298
Total, Fair Value	454,255	454,994
US Treasury [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	10,005	23,041
Unrealized gains	9	70
Unrealized losses	0	0
Estimated fair value	10,014	23,111
Federal Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	397,197	332,193
Unrealized gains	759	327
Unrealized losses	(1,033)	(2,606)
Estimated fair value	396,923	329,914
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	146,403	66,528
12 Months or Longer, Fair Value	29,732	198,151
Total, Fair Value	176,135	264,679
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months Unrealized Losses	(765)	(226)
12 months or longer Unrealized Losses	(268)	(2,380)
Total Unrealized Losses	$ (1,033)	$ (2,606)
Unrealized Loss Position, Number of Positions [Abstract]
Less Than 12 Months, Number of Positions \| Position	13	8
12 Months or Longer, Number of Positions \| Position	3	16
Total, Number of Positions \| Position	16	24
State & Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 29,881	$ 37,035
Unrealized gains	505	587
Unrealized losses	(26)	(52)
Estimated fair value	30,360	37,570
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	6,184	8,818
12 Months or Longer, Fair Value	0	1,321
Total, Fair Value	6,184	10,139
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months Unrealized Losses	(26)	(42)
12 months or longer Unrealized Losses	0	(10)
Total Unrealized Losses	$ (26)	$ (52)
Unrealized Loss Position, Number of Positions [Abstract]
Less Than 12 Months, Number of Positions \| Position	14	33
12 Months or Longer, Number of Positions \| Position	0	5
Total, Number of Positions \| Position	14	38
Mortgage-Backed [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	$ 57,745	$ 10,400
12 Months or Longer, Fair Value	4,571	35,565
Total, Fair Value	62,316	45,965
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months Unrealized Losses	(439)	(36)
12 months or longer Unrealized Losses	(59)	(254)
Total Unrealized Losses	$ (498)	$ (290)
Unrealized Loss Position, Number of Positions [Abstract]
Less Than 12 Months, Number of Positions \| Position	28	10
12 Months or Longer, Number of Positions \| Position	17	31
Total, Number of Positions \| Position	45	41
Mortgage-backed Securities, Issued by US Government-Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 333,292	$ 339,190
Unrealized gains	5,914	7,597
Unrealized losses	(439)	(224)
Estimated fair value	338,767	346,563
Mortgage-backed Securities, Issued by US Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	15,325	17,367
Unrealized gains	796	863
Unrealized losses	(59)	(66)
Estimated fair value	16,062	18,164
Collateralized Mortgage Obligations [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	87,849	57,682
12 Months or Longer, Fair Value	5,452	6,598
Total, Fair Value	93,301	64,280
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months Unrealized Losses	(531)	(196)
12 months or longer Unrealized Losses	(38)	(74)
Total Unrealized Losses	$ (569)	$ (270)
Unrealized Loss Position, Number of Positions [Abstract]
Less Than 12 Months, Number of Positions \| Position	9	8
12 Months or Longer, Number of Positions \| Position	4	4
Total, Number of Positions \| Position	13	12
Government-sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 285,733	$ 199,837
Unrealized gains	1,966	1,828
Unrealized losses	(535)	(234)
Estimated fair value	287,164	201,431
U.S. Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	33,965	40,237
Unrealized gains	428	497
Unrealized losses	(34)	(36)
Estimated fair value	34,359	40,698
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	12,872	12,818
Unrealized gains	2,870	3,054
Unrealized losses	(142)	(152)
Estimated fair value	15,600	15,720
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	0	0
12 Months or Longer, Fair Value	3,211	3,201
Total, Fair Value	3,211	3,201
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months Unrealized Losses	0	0
12 months or longer Unrealized Losses	(142)	(152)
Total Unrealized Losses	$ (142)	$ (152)
Unrealized Loss Position, Number of Positions [Abstract]
Less Than 12 Months, Number of Positions \| Position	0	0
12 Months or Longer, Number of Positions \| Position	2	2
Total, Number of Positions \| Position	2	2
Mortgage-Backed [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	$ 9,907
12 Months or Longer, Fair Value	0
Total, Fair Value	9,907
Unrealized Loss Position, Unrealized Losses [Abstract]
Less Than 12 Months, Unrealized Losses	(142)
12 Months or Longer, Unrealized Losses	0
Total, Unrealized Losses	$ (142)
Unrealized Loss Position, Number of Positions [Abstract]
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year \| Position	1
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater Than or Equal to One Year \| Position	0
Total, Number of Positions \| Position	1
Mortgage-Backed [Member] \| Government-sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 10,049	$ 755
Unrealized gains	0	113
Unrealized losses	(142)	0
Estimated fair value	9,907	868
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized cost	10,049	755
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Total, Fair Value	9,907	868
Mortgage-Backed [Member] \| U.S. Government Agency Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	695
Unrealized gains	118
Unrealized losses	0
Estimated fair value	813
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized cost	695
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Total, Fair Value	813
State & Municipal [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	148,058	135,978
Unrealized gains	466	674
Unrealized losses	(442)	(123)
Estimated fair value	148,082	136,529
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	43,095	43,514
12 Months or Longer, Fair Value	0	1,619
Total, Fair Value	43,095	45,133
Unrealized Loss Position, Unrealized Losses [Abstract]
Less Than 12 Months, Unrealized Losses	(442)	(116)
12 Months or Longer, Unrealized Losses	0	(7)
Total, Unrealized Losses	$ (442)	$ (123)
Unrealized Loss Position, Number of Positions [Abstract]
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year \| Position	89	110
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater Than or Equal to One Year \| Position	0	6
Total, Number of Positions \| Position	89	116
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized cost	$ 148,058	$ 135,978
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Total, Fair Value	148,082	136,529
Collateralized Mortgage Obligations [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less Than 12 Months, Fair Value	76,008	26,052
12 Months or Longer, Fair Value	44,136	46,415
Total, Fair Value	120,144	72,467
Unrealized Loss Position, Unrealized Losses [Abstract]
Less Than 12 Months, Unrealized Losses	(306)	(49)
12 Months or Longer, Unrealized Losses	(1,520)	(1,916)
Total, Unrealized Losses	$ (1,826)	$ (1,965)
Unrealized Loss Position, Number of Positions [Abstract]
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year \| Position	8	2
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater Than or Equal to One Year \| Position	4	4
Total, Number of Positions \| Position	12	6
Collateralized Mortgage Obligations [Member] \| Government-sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 295,510	$ 317,628
Unrealized gains	1,769	1,934
Unrealized losses	(1,826)	(1,965)
Estimated fair value	295,453	317,597
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized cost	295,510	317,628
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Total, Fair Value	$ 295,453	$ 317,597

Allowance for Loan Losses and31

Allowance for Loan Losses and Credit Quality of Loans (Details) - Jun. 30, 2015 $ in Millions	USD ($)Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan portfolio segments	3
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loan amount, percentage of appraised value or purchase price of the property, maximum (in hundredths)	80.00%
Agricultural Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loan amount, percentage of appraised value or purchase price of the property, maximum (in hundredths)	75.00%
Business Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Business banking loans, maximum amount \| $	$ 0.5
Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of automobile financing to indirect relationships with dealers (in hundredths)	75.00%
Principal repayment term of loan, minimum	3 years
Principal repayment term of loan, maximum	6 years
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Home equity loan amount, percentage of equity in home, maximum (in hundredths)	85.00%
Direct [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal repayment term of loan, minimum	1 year
Principal repayment term of loan, maximum	10 years
Residential Real Estate Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loan amount, percentage of appraised value or purchase price of the property, maximum (in hundredths)	85.00%

Allowance for Loan Losses and32

Allowance for Loan Losses and Credit Quality of Loans, Allowance for Loan Losses (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance as of Beginning of Period	$ 65,359,000	$ 69,434,000	$ 66,359,000	$ 69,434,000
Charge-offs	(5,368,000)	(5,240,000)	(11,048,000)	(10,070,000)
Recoveries	1,070,000	1,174,000	2,108,000	2,408,000
Provision	3,898,000	4,166,000	7,540,000	7,762,000
Balance as of Ending of Period	64,959,000	69,534,000	64,959,000	69,534,000
Allowance for loan losses for acquired loan portfolio	1.9	1.5
Provision expense and net charge-offs related to acquired loans	100,000	100,000	700,000	200,000
Allowance loan losses [Abstract]
Allowance for loan losses	65,359,000	69,434,000	66,359,000	69,434,000	$ 64,959,000	$ 66,359,000
Allowance for loans individually evaluated for impairment					2,885,000	1,100,000
Allowance for loans collectively evaluated for impairment					62,074,000	65,259,000
Ending balance of loans	5,770,888,000		5,770,888,000
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance as of Beginning of Period	31,278,000	34,437,000	32,433,000	35,090,000
Charge-offs	(584,000)	(1,427,000)	(1,382,000)	(1,906,000)
Recoveries	280,000	314,000	514,000	713,000
Provision	(2,648,000)	1,799,000	(3,239,000)	1,226,000
Balance as of Ending of Period	28,326,000	35,123,000	28,326,000	35,123,000
Allowance loan losses [Abstract]
Allowance for loan losses	31,278,000	34,437,000	32,433,000	35,090,000	28,326,000	32,433,000
Allowance for loans individually evaluated for impairment					2,885,000	1,100,000
Allowance for loans collectively evaluated for impairment					25,441,000	31,333,000
Ending balance of loans	2,565,590,000		2,565,590,000
Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance as of Beginning of Period	26,156,000	28,436,000	26,720,000	27,694,000
Charge-offs	(4,275,000)	(3,648,000)	(8,653,000)	(7,680,000)
Recoveries	697,000	714,000	1,445,000	1,455,000
Provision	5,736,000	2,471,000	8,802,000	6,504,000
Balance as of Ending of Period	28,314,000	27,973,000	28,314,000	27,973,000
Allowance loan losses [Abstract]
Allowance for loan losses	26,156,000	28,436,000	26,720,000	27,694,000	28,314,000	26,720,000
Allowance for loans individually evaluated for impairment					0	0
Allowance for loans collectively evaluated for impairment					28,314,000	26,720,000
Ending balance of loans	2,051,540,000		2,051,540,000
Residential Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance as of Beginning of Period	7,698,000	6,225,000	7,130,000	6,520,000
Charge-offs	(509,000)	(165,000)	(1,013,000)	(484,000)
Recoveries	93,000	146,000	149,000	240,000
Provision	999,000	(1,000)	2,015,000	(71,000)
Balance as of Ending of Period	8,281,000	6,205,000	8,281,000	6,205,000
Allowance loan losses [Abstract]
Allowance for loan losses	7,698,000	6,225,000	7,130,000	6,520,000	8,281,000	7,130,000
Allowance for loans individually evaluated for impairment					0	0
Allowance for loans collectively evaluated for impairment					8,281,000	7,130,000
Ending balance of loans	1,153,758,000		1,153,758,000
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance as of Beginning of Period	227,000	336,000	76,000	130,000
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(189,000)	(103,000)	(38,000)	103,000
Balance as of Ending of Period	38,000	233,000	38,000	233,000
Allowance loan losses [Abstract]
Allowance for loan losses	227,000	$ 336,000	76,000	$ 130,000	38,000	76,000
Allowance for loans collectively evaluated for impairment					$ 38,000	$ 76,000
Originated Loans [Member]
Allowance loan losses [Abstract]
Ending balance of loans	5,079,403,000		5,079,403,000
Ending balance of loans individually evaluated for impairment	24,494,000		24,494,000
Ending balance of loans collectively evaluated for impairment	5,054,909,000		5,054,909,000
Originated Loans [Member] \| Commercial Loans [Member]
Allowance loan losses [Abstract]
Ending balance of loans	2,246,172,000		2,246,172,000
Ending balance of loans individually evaluated for impairment	12,506,000		12,506,000
Ending balance of loans collectively evaluated for impairment	2,233,666,000		2,233,666,000
Originated Loans [Member] \| Consumer Loans [Member]
Allowance loan losses [Abstract]
Ending balance of loans	1,931,224,000		1,931,224,000
Ending balance of loans individually evaluated for impairment	6,967,000		6,967,000
Ending balance of loans collectively evaluated for impairment	1,924,257,000		1,924,257,000
Originated Loans [Member] \| Residential Real Estate Mortgages [Member]
Allowance loan losses [Abstract]
Ending balance of loans	902,007,000		902,007,000
Ending balance of loans individually evaluated for impairment	5,021,000		5,021,000
Ending balance of loans collectively evaluated for impairment	896,986,000		896,986,000
Acquired Loans [Member]
Allowance loan losses [Abstract]
Ending balance of loans	691,485,000		691,485,000
Ending balance of loans individually evaluated for impairment	9,719,000		9,719,000
Ending balance of loans collectively evaluated for impairment	681,766,000		681,766,000
Acquired Loans [Member] \| Commercial Loans [Member]
Allowance loan losses [Abstract]
Ending balance of loans	319,418,000		319,418,000
Ending balance of loans individually evaluated for impairment	9,719,000		9,719,000
Ending balance of loans collectively evaluated for impairment	309,699,000		309,699,000
Acquired Loans [Member] \| Consumer Loans [Member]
Allowance loan losses [Abstract]
Ending balance of loans	120,316,000		120,316,000
Ending balance of loans individually evaluated for impairment	0		0
Ending balance of loans collectively evaluated for impairment	120,316,000		120,316,000
Acquired Loans [Member] \| Residential Real Estate Mortgages [Member]
Allowance loan losses [Abstract]
Ending balance of loans	251,751,000		251,751,000
Ending balance of loans individually evaluated for impairment	0		0
Ending balance of loans collectively evaluated for impairment	$ 251,751,000		$ 251,751,000

Allowance for Loan Losses and33

Allowance for Loan Losses and Credit Quality of Loans, Past Due Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Aging [Abstract]
Minimum number of days past due for nonaccrual loan status	90 days
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	$ 26,994	$ 27,402
61 - 90 Days Past Due Accruing	5,997	6,150
Greater Than 90 Days Past Due Accruing	1,994	4,941
Total Past Due Accruing	34,985	38,493
Non-Accrual	42,286	41,074
Current	5,693,617	5,515,704
Ending balance of loans	5,770,888	5,595,271
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Ending balance of loans	2,565,590	2,473,702
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Ending balance of loans	2,051,540	2,005,980
Residential Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Ending balance of loans	1,153,758	1,115,589
Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	25,411	25,496
61 - 90 Days Past Due Accruing	5,459	5,805
Greater Than 90 Days Past Due Accruing	1,858	4,204
Total Past Due Accruing	32,728	35,505
Non-Accrual	28,339	30,845
Current	5,018,336	4,781,587
Ending balance of loans	5,079,403	4,847,937
Originated Loans [Member] \| Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	3,041	1,010
61 - 90 Days Past Due Accruing	179	970
Greater Than 90 Days Past Due Accruing	0	84
Total Past Due Accruing	3,220	2,064
Non-Accrual	13,915	13,431
Current	2,229,037	2,124,876
Ending balance of loans	2,246,172	2,140,371
Originated Loans [Member] \| Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	268	0
61 - 90 Days Past Due Accruing	7	735
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	275	735
Non-Accrual	22	1,012
Current	629,818	613,400
Ending balance of loans	630,115	615,147
Originated Loans [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	1,274	192
61 - 90 Days Past Due Accruing	28	0
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	1,302	192
Non-Accrual	6,825	4,127
Current	1,148,828	1,064,549
Ending balance of loans	1,156,955	1,068,868
Originated Loans [Member] \| Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	3	0
61 - 90 Days Past Due Accruing	67	0
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	70	0
Non-Accrual	1,041	817
Current	31,704	32,130
Ending balance of loans	32,815	32,947
Originated Loans [Member] \| Agricultural Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	18	19
61 - 90 Days Past Due Accruing	0	0
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	18	19
Non-Accrual	326	565
Current	26,380	24,390
Ending balance of loans	26,724	24,974
Originated Loans [Member] \| Business Banking [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	1,478	799
61 - 90 Days Past Due Accruing	77	235
Greater Than 90 Days Past Due Accruing	0	84
Total Past Due Accruing	1,555	1,118
Non-Accrual	5,701	6,910
Current	392,307	390,407
Ending balance of loans	399,563	398,435
Originated Loans [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	19,501	21,585
61 - 90 Days Past Due Accruing	4,318	4,739
Greater Than 90 Days Past Due Accruing	1,684	2,864
Total Past Due Accruing	25,503	29,188
Non-Accrual	6,838	8,644
Current	1,898,883	1,820,892
Ending balance of loans	1,931,224	1,858,724
Originated Loans [Member] \| Indirect [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	14,212	16,434
61 - 90 Days Past Due Accruing	3,035	3,154
Greater Than 90 Days Past Due Accruing	1,250	1,991
Total Past Due Accruing	18,497	21,579
Non-Accrual	1,553	1,964
Current	1,378,754	1,286,507
Ending balance of loans	1,398,804	1,310,050
Originated Loans [Member] \| Home Equity Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	4,941	4,591
61 - 90 Days Past Due Accruing	1,172	1,428
Greater Than 90 Days Past Due Accruing	328	821
Total Past Due Accruing	6,441	6,840
Non-Accrual	5,226	6,596
Current	466,301	479,444
Ending balance of loans	477,968	492,880
Originated Loans [Member] \| Direct [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	348	560
61 - 90 Days Past Due Accruing	111	157
Greater Than 90 Days Past Due Accruing	106	52
Total Past Due Accruing	565	769
Non-Accrual	59	84
Current	53,828	54,941
Ending balance of loans	54,452	55,794
Originated Loans [Member] \| Residential Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	2,869	2,901
61 - 90 Days Past Due Accruing	962	96
Greater Than 90 Days Past Due Accruing	174	1,256
Total Past Due Accruing	4,005	4,253
Non-Accrual	7,586	8,770
Current	890,416	835,819
Ending balance of loans	902,007	848,842
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	1,583	1,906
61 - 90 Days Past Due Accruing	538	345
Greater Than 90 Days Past Due Accruing	136	737
Total Past Due Accruing	2,257	2,988
Non-Accrual	13,947	10,229
Current	675,281	734,117
Ending balance of loans	691,485	747,334
Acquired Loans [Member] \| Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	181	5
61 - 90 Days Past Due Accruing	5	15
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	186	20
Non-Accrual	10,165	6,340
Current	309,067	326,971
Ending balance of loans	319,418	333,331
Acquired Loans [Member] \| Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	0	0
61 - 90 Days Past Due Accruing	0	0
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	0	0
Non-Accrual	2,509	3,009
Current	75,153	72,255
Ending balance of loans	77,662	75,264
Acquired Loans [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	0	0
61 - 90 Days Past Due Accruing	0	0
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	0	0
Non-Accrual	7,204	2,666
Current	182,634	197,222
Ending balance of loans	189,838	199,888
Acquired Loans [Member] \| Business Banking [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	181	5
61 - 90 Days Past Due Accruing	5	15
Greater Than 90 Days Past Due Accruing	0	0
Total Past Due Accruing	186	20
Non-Accrual	452	665
Current	51,280	57,494
Ending balance of loans	51,918	58,179
Acquired Loans [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	393	739
61 - 90 Days Past Due Accruing	127	65
Greater Than 90 Days Past Due Accruing	75	66
Total Past Due Accruing	595	870
Non-Accrual	716	696
Current	119,005	145,690
Ending balance of loans	120,316	147,256
Acquired Loans [Member] \| Indirect [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	242	518
61 - 90 Days Past Due Accruing	32	5
Greater Than 90 Days Past Due Accruing	0	54
Total Past Due Accruing	274	577
Non-Accrual	125	106
Current	43,418	64,540
Ending balance of loans	43,817	65,223
Acquired Loans [Member] \| Home Equity Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	130	190
61 - 90 Days Past Due Accruing	61	60
Greater Than 90 Days Past Due Accruing	67	5
Total Past Due Accruing	258	255
Non-Accrual	555	557
Current	71,457	75,904
Ending balance of loans	72,270	76,716
Acquired Loans [Member] \| Direct [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	21	31
61 - 90 Days Past Due Accruing	34	0
Greater Than 90 Days Past Due Accruing	8	7
Total Past Due Accruing	63	38
Non-Accrual	36	33
Current	4,130	5,246
Ending balance of loans	4,229	5,317
Acquired Loans [Member] \| Residential Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
31 - 60 Days Past Due Accruing	1,009	1,162
61 - 90 Days Past Due Accruing	406	265
Greater Than 90 Days Past Due Accruing	61	671
Total Past Due Accruing	1,476	2,098
Non-Accrual	3,066	3,193
Current	247,209	261,456
Ending balance of loans	$ 251,751	$ 266,747

Allowance for Loan Losses and34

Allowance for Loan Losses and Credit Quality of Loans, Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Minimum balance for classified loans to be evaluated individually for impairment	$ 500		$ 500
With an allowance recorded [Abstract]
Recorded investment balance (book)	34,213		34,213		$ 25,796
Unpaid principal balance (legal)	41,054		41,054		32,290
Related allowance	2,885		2,885		1,100
Average recorded investment	33,604	$ 32,027	33,363	$ 32,340
Interest income recognized accrual	241	151	425	284
Originated Loans [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	19,664		19,664		17,358
Unpaid principal balance (legal)	21,272		21,272		19,181
With an allowance recorded [Abstract]
Recorded investment balance (book)	4,830		4,830		2,763
Unpaid principal balance (legal)	6,687		6,687		4,611
Related allowance	1,035		1,035		600
Average recorded investment	23,797	22,250	23,465	22,472
Interest income recognized accrual	241	151	425	284
Originated Loans [Member] \| Commercial Loans [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	7,676		7,676		8,316
Unpaid principal balance (legal)	8,002		8,002		9,189
Originated Loans [Member] \| Commercial [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	1,815		1,815		1,748
Unpaid principal balance (legal)	1,967		1,967		1,901
With an allowance recorded [Abstract]
Average recorded investment	1,768	2,013	1,742	2,025
Interest income recognized accrual	61	0	86	0
Originated Loans [Member] \| Commercial Real Estate [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	4,205		4,205		4,505
Unpaid principal balance (legal)	4,216		4,216		4,520
With an allowance recorded [Abstract]
Average recorded investment	9,060	10,062	9,091	10,739
Interest income recognized accrual	41	42	82	84
Originated Loans [Member] \| Agricultural [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	19		19		20
Unpaid principal balance (legal)	25		25		26
With an allowance recorded [Abstract]
Average recorded investment	19	123	19	124
Interest income recognized accrual	0	0	1	1
Originated Loans [Member] \| Agricultural Real Estate [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	628		628		1,147
Unpaid principal balance (legal)	754		754		1,441
With an allowance recorded [Abstract]
Average recorded investment	630	1,412	633	1,418
Interest income recognized accrual	12	12	23	23
Originated Loans [Member] \| Business Banking [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	1,009		1,009		896
Unpaid principal balance (legal)	1,040		1,040		1,301
With an allowance recorded [Abstract]
Average recorded investment	975	548	932	429
Interest income recognized accrual	2	11	6	23
Originated Loans [Member] \| Consumer Loans [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	6,967		6,967		5,498
Unpaid principal balance (legal)	7,737		7,737		6,033
Originated Loans [Member] \| Indirect [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	15		15		0
Unpaid principal balance (legal)	24		24		0
With an allowance recorded [Abstract]
Average recorded investment	16	0	11	0
Interest income recognized accrual	0	0	0	0
Originated Loans [Member] \| Home Equity [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	6,952		6,952		5,498
Unpaid principal balance (legal)	7,713		7,713		6,033
With an allowance recorded [Abstract]
Average recorded investment	6,692	5,289	6,560	4,959
Interest income recognized accrual	92	60	164	103
Originated Loans [Member] \| Direct [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	0		0		0
Unpaid principal balance (legal)	0		0		0
With an allowance recorded [Abstract]
Average recorded investment	1	0	1	0
Interest income recognized accrual	0	0	0	0
Originated Loans [Member] \| Residential Real Estate Mortgages [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	5,021		5,021		3,544
Unpaid principal balance (legal)	5,533		5,533		3,959
With an allowance recorded [Abstract]
Average recorded investment	4,636	2,803	4,476	2,778
Interest income recognized accrual	33	26	63	50
Acquired Loans [Member]
With an allowance recorded [Abstract]
Average recorded investment	9,807	9,777	9,898	9,868
Interest income recognized accrual	0	0	0	0
Acquired Loans [Member] \| Commercial Loans [Member]
With an allowance recorded [Abstract]
Recorded investment balance (book)	3,829		3,829		3,009
Unpaid principal balance (legal)	5,997		5,997		4,668
Related allowance	1,850		1,850		500
Acquired Loans [Member] \| Commercial [Member]
With an allowance recorded [Abstract]
Recorded investment balance (book)	2,508		2,508		3,009
Unpaid principal balance (legal)	4,668		4,668		4,668
Related allowance	1,000		1,000		500
Average recorded investment	2,602	6,315	2,722	6,375
Interest income recognized accrual	0	0	0	0
Acquired Loans [Member] \| Commercial Real Estate [Member]
With no allowance recorded [Abstract]
Recorded investment balance (book)	5,890		5,890		2,666
Unpaid principal balance (legal)	7,098		7,098		3,830
With an allowance recorded [Abstract]
Recorded investment balance (book)	1,321		1,321		0
Unpaid principal balance (legal)	1,329		1,329		0
Related allowance	850		850		$ 0
Average recorded investment	7,205	3,462	7,176	3,493
Interest income recognized accrual	$ 0	$ 0	$ 0	$ 0

Allowance for Loan Losses and35

Allowance for Loan Losses and Credit Quality of Loans, Credit Quality by Loan Class (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Originated Loans [Member] \| Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	$ 1,846,609	$ 1,741,936
Originated Loans [Member] \| Commercial Loans [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	1,736,721	1,648,664
Originated Loans [Member] \| Commercial Loans [Member] \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	38,626	23,680
Originated Loans [Member] \| Commercial Loans [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	71,254	69,584
Originated Loans [Member] \| Commercial Loans [Member] \| Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	8	8
Originated Loans [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	399,563	398,435
Originated Loans [Member] \| Business Banking Credit Exposure [Member] \| Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	383,016	379,445
Originated Loans [Member] \| Business Banking Credit Exposure [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	16,547	18,990
Originated Loans [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	1,931,224	1,858,724
Originated Loans [Member] \| Consumer Loans [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	1,922,702	1,847,216
Originated Loans [Member] \| Consumer Loans [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	8,522	11,508
Originated Loans [Member] \| Residential Mortgage Credit Exposure [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	902,007	848,842
Originated Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	894,247	838,816
Originated Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	7,760	10,026
Originated Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	902,007	848,842
Originated Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Residential Mortgage [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	894,247	838,816
Originated Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Residential Mortgage [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	7,760	10,026
Acquired Loans [Member] \| Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	267,500	275,152
Acquired Loans [Member] \| Commercial Loans [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	243,041	249,666
Acquired Loans [Member] \| Commercial Loans [Member] \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	6,989	5,486
Acquired Loans [Member] \| Commercial Loans [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	17,470	20,000
Acquired Loans [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	51,918	58,179
Acquired Loans [Member] \| Business Banking Credit Exposure [Member] \| Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	47,546	53,264
Acquired Loans [Member] \| Business Banking Credit Exposure [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	4,372	4,915
Acquired Loans [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	120,316	147,256
Acquired Loans [Member] \| Consumer Loans [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	119,525	146,494
Acquired Loans [Member] \| Consumer Loans [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	791	762
Acquired Loans [Member] \| Residential Mortgage Credit Exposure [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	251,751	266,747
Acquired Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	248,624	262,883
Acquired Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	3,127	3,864
Acquired Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	251,751	266,747
Acquired Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Residential Mortgage [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	248,624	262,883
Acquired Loans [Member] \| Residential Mortgage Credit Exposure [Member] \| Residential Mortgage [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	$ 3,127	$ 3,864

Allowance for Loan Losses and36

Allowance for Loan Losses and Credit Quality of Loans, Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)Contract	Jun. 30, 2014USD ($)Contract	Jun. 30, 2015USD ($)Contract	Jun. 30, 2014USD ($)Contract
Financing Receivable, Modifications [Line Items]
Period of sustained repayment performance for nonperforming TDRs to be returned to performing status			6 months
Number of contracts \| Contract	20	28	48	63
Pre-modification outstanding recorded investment	$ 2,796	$ 2,787	$ 4,645	$ 5,559
Post-modification outstanding recorded investment	$ 3,239	$ 2,787	$ 5,099	$ 5,529
Number of TDR loans with subsequent default \| Contract	0	3	4	8
Outstanding recorded investment on TDR loans with subsequent default	$ 0	$ 343	$ 233	$ 605
Commercial Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract	2	2	2	2
Pre-modification outstanding recorded investment	$ 1,355	$ 570	$ 1,355	$ 570
Post-modification outstanding recorded investment	$ 1,341	$ 570	$ 1,341	$ 570
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract	1		1
Pre-modification outstanding recorded investment	$ 1,165		$ 1,165
Post-modification outstanding recorded investment	$ 1,165		$ 1,165
Small Business [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract	1	2	1	2
Pre-modification outstanding recorded investment	$ 190	$ 570	$ 190	$ 570
Post-modification outstanding recorded investment	$ 176	$ 570	$ 176	$ 570
Consumer Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract	12	23	31	45
Pre-modification outstanding recorded investment	$ 1,071	$ 1,785	$ 2,218	$ 3,148
Post-modification outstanding recorded investment	$ 1,128	$ 1,785	$ 2,236	$ 3,118
Number of TDR loans with subsequent default \| Contract	0	3	4	7
Outstanding recorded investment on TDR loans with subsequent default	$ 0	$ 343	$ 233	$ 535
Indirect [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract		2		2
Pre-modification outstanding recorded investment		$ 69		$ 69
Post-modification outstanding recorded investment		$ 69		$ 39
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract	12	6	27	8
Pre-modification outstanding recorded investment	$ 1,071	$ 503	$ 2,112	$ 561
Post-modification outstanding recorded investment	$ 1,128	$ 503	$ 2,132	$ 561
Number of TDR loans with subsequent default \| Contract	0	2	4	2
Outstanding recorded investment on TDR loans with subsequent default	$ 0	$ 300	$ 233	$ 300
Direct [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract		15	4	35
Pre-modification outstanding recorded investment		$ 1,213	$ 106	$ 2,518
Post-modification outstanding recorded investment		$ 1,213	$ 104	$ 2,518
Number of TDR loans with subsequent default \| Contract	0	1	0	5
Outstanding recorded investment on TDR loans with subsequent default	$ 0	$ 43	$ 0	$ 235
Residential Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts \| Contract	6	3	15	16
Pre-modification outstanding recorded investment	$ 370	$ 432	$ 1,072	$ 1,841
Post-modification outstanding recorded investment	$ 770	$ 432	$ 1,522	$ 1,841
Number of TDR loans with subsequent default \| Contract			0	1
Outstanding recorded investment on TDR loans with subsequent default			$ 0	$ 70

Defined Benefit Postretiremen37

Defined Benefit Postretirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Pension Benefits [Member]
Components of net periodic (benefit) cost [Abstract]
Service cost	$ 655	$ 587	$ 1,310	$ 1,174
Interest cost	998	1,040	1,996	2,080
Expected return on plan assets	(2,150)	(2,175)	(4,300)	(4,350)
Net amortization	546	25	1,092	50
Total cost (benefit)	49	(523)	98	(1,046)
Other Benefits [Member]
Components of net periodic (benefit) cost [Abstract]
Service cost	4	4	8	8
Interest cost	91	90	182	180
Expected return on plan assets	0	0	0	0
Net amortization	15	(6)	30	(12)
Total cost (benefit)	$ 110	$ 88	$ 220	$ 176

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basic EPS [Abstract]
Weighted average common shares outstanding (in shares)	44,007,000	43,865,000	44,079,000	43,829,000
Net income	$ 19,281	$ 27,640	$ 37,447	$ 45,649
Basic EPS (in dollars per share)	$ 0.44	$ 0.63	$ 0.85	$ 1.04
Diluted EPS [Abstract]
Weighted average common shares outstanding (in shares)	44,007,000	43,865,000	44,079,000	43,829,000
Dilutive effect of common stock options and restricted stock (in shares)	523,000	498,000	510,000	500,000
Weighted average common shares and common share equivalents (in shares)	44,530,000	44,363,000	44,589,000	44,329,000
Net income	$ 19,281	$ 27,640	$ 37,447	$ 45,649
Diluted EPS (in dollars per share)	$ 0.43	$ 0.62	$ 0.84	$ 1.03
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from calculation of diluted EPS (in shares)	339,109	503,058	340,034	500,541

Reclassification Adjustments 39

Reclassification Adjustments Out of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities gains	$ (26)	$ (14)	$ (40)	$ (21)
Interest income	62,685	62,574	124,851	124,091
Salaries and employee benefits	30,831	31,142	61,013	60,676
Income tax expense (benefit)	9,757	14,059	18,947	22,731
Net of tax	19,281	27,640	37,447	45,649
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	531	3	1,070	10
Accumulated Net Unrealized Investment Gain (Loss) [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities gains	(26)	(14)	(40)	(21)
Interest income	307	0	614	0
Income tax expense (benefit)	(92)	6	(188)	8
Net of tax	189	(8)	386	(13)
Accumulated Defined Benefit Plans Adjustment [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense (benefit)	(219)	(8)	(438)	(15)
Net of tax	342	11	684	23
Amortization of Net Gains [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits	567	74	1,133	148
Amortization of Prior Service Costs [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits	$ (6)	$ (55)	$ (11)	$ (110)

Fair Values Measurements and 40

Fair Values Measurements and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Securities Available for Sale [Abstract]
Total Securities Available for Sale	$ 1,129,249	$ 1,013,171
Trading Securities	8,468	7,793
Liabilities [Abstract]
Allowance for loan and lease losses collateral dependent impaired loans with specific reserves	$ 2,900		$ 2,100
Liquidation expense ratio on impaired collateral minimum (in hundredths)	10.00%
Liquidation expense ratio on impaired collateral maximum (in hundredths)	35.00%
Financial assets [Abstract]
Securities held to maturity	$ 454,255	454,994
Financial liabilities [Abstract]
Time deposits	948,154	1,043,823
Long-term debt	130,705	130,945
Junior subordinated debt	101,196	101,196
Carrying Amount [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Financial assets [Abstract]
Securities held to maturity	454,312	454,361
Financial liabilities [Abstract]
Time deposits	948,154	1,043,823
Long-term debt	130,705	130,945
Junior subordinated debt	101,196	101,196
Carrying Amount [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Financial assets [Abstract]
Net Loans	5,705,929	5,528,912
Estimated Fair Value [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Financial assets [Abstract]
Securities held to maturity	454,255	454,994
Financial liabilities [Abstract]
Time deposits	942,611	1,038,877
Long-term debt	132,559	132,562
Junior subordinated debt	95,977	103,770
Estimated Fair Value [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Financial assets [Abstract]
Net Loans	5,728,903	5,584,777
Recurring Basis [Member]
Securities Available for Sale [Abstract]
U.S. Treasury	10,014	23,111
Federal Agency	396,923	329,914
State & municipal	30,360	37,570
Mortgage-backed	354,829	364,727
Collateralized mortgage obligations	321,523	242,129
Other securities	15,600	15,720
Total Securities Available for Sale	1,129,249	1,013,171
Trading Securities	8,468	7,793
Interest Rate Swaps	4,703	4,707
Total	1,142,420	1,025,671
Liabilities [Abstract]
Interest Rate Swaps	4,703	4,707
Total	4,703	4,707
Recurring Basis [Member] \| Quoted Prices in Active Market for Identical Assets (Level I) [Member]
Securities Available for Sale [Abstract]
U.S. Treasury	10,014	23,111
Federal Agency	0	0
State & municipal	0	0
Mortgage-backed	0	0
Collateralized mortgage obligations	0	0
Other securities	7,740	7,612
Total Securities Available for Sale	17,754	30,723
Trading Securities	8,468	7,793
Interest Rate Swaps	0	0
Total	26,222	38,516
Liabilities [Abstract]
Interest Rate Swaps	0	0
Total	0	0
Recurring Basis [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Securities Available for Sale [Abstract]
U.S. Treasury	0	0
Federal Agency	396,923	329,914
State & municipal	30,360	37,570
Mortgage-backed	354,829	364,727
Collateralized mortgage obligations	321,523	242,129
Other securities	7,860	8,108
Total Securities Available for Sale	1,111,495	982,448
Trading Securities	0	0
Interest Rate Swaps	4,703	4,707
Total	1,116,198	987,155
Liabilities [Abstract]
Interest Rate Swaps	4,703	4,707
Total	4,703	4,707
Recurring Basis [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Securities Available for Sale [Abstract]
U.S. Treasury	0	0
Federal Agency	0	0
State & municipal	0	0
Mortgage-backed	0	0
Collateralized mortgage obligations	0	0
Other securities	0	0
Total Securities Available for Sale	0	0
Trading Securities	0	0
Interest Rate Swaps	0	0
Total	0	0
Liabilities [Abstract]
Interest Rate Swaps	0	0
Total	0	$ 0
Nonrecurring Basis [Member]
Liabilities [Abstract]
Collateral dependent impaired financing receivable with specific reserves	$ 8,700		$ 9,000

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Commitment to Extend Credits and Unused Lines of Credit [Member]
Guarantor Obligations [Line Items]
Commitments - maximum potential obligation	$ 1,300	$ 1,200
Standby Letters of Credit [Member]
Guarantor Obligations [Line Items]
Commitments - maximum potential obligation	$ 32.1	35.2
Obligation instrument term	5 years
Commercial Letters of Credit [Member]
Guarantor Obligations [Line Items]
Commitments - maximum potential obligation	$ 5.6	$ 22.5

Uncategorized Items - nbtb-2015

Label	Element	Value
Gain on the sale of equity investment	us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal	$ 0
Gain on the sale of equity investment	us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal	19,401
Amortization of intangible assets	us-gaap_AmortizationOfIntangibleAssets	1,187
Amortization of intangible assets	us-gaap_AmortizationOfIntangibleAssets	1,236
Provision for loan losses	us-gaap_ProvisionForLoanAndLeaseLosses	3,898
Provision for loan losses	us-gaap_ProvisionForLoanAndLeaseLosses	4,166
Acquired Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	741,659
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	5,675
Originated Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	4,827,816
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	20,121
Commercial Portfolio Segment [Member] \| Acquired Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	327,656
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	5,675
Commercial Portfolio Segment [Member] \| Originated Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	2,129,292
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	11,079
Commercial Real Estate Other Receivable [Member] \| Acquired Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	189,838
Financing Receivable, Net	us-gaap_NotesReceivableNet	199,888
Commercial Real Estate Other Receivable [Member] \| Acquired Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	170,931
Financing Receivable, Net	us-gaap_NotesReceivableNet	186,036
Commercial Real Estate Other Receivable [Member] \| Acquired Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	2,646
Financing Receivable, Net	us-gaap_NotesReceivableNet	6,081
Commercial Real Estate Other Receivable [Member] \| Acquired Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	11,206
Financing Receivable, Net	us-gaap_NotesReceivableNet	12,826
Commercial Real Estate Other Receivable [Member] \| Originated Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,068,868
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,156,955
Commercial Real Estate Other Receivable [Member] \| Originated Loans [Member] \| Doubtful [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Commercial Real Estate Other Receivable [Member] \| Originated Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,023,856
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,100,065
Commercial Real Estate Other Receivable [Member] \| Originated Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	17,341
Financing Receivable, Net	us-gaap_NotesReceivableNet	26,706
Commercial Real Estate Other Receivable [Member] \| Originated Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	27,671
Financing Receivable, Net	us-gaap_NotesReceivableNet	30,184
Consumer Credit Exposure [Member] \| Acquired Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	147,256
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	0
Consumer Credit Exposure [Member] \| Originated Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	1,853,226
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	5,498
Residential Portfolio Segment [Member] \| Acquired Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	266,747
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	0
Residential Portfolio Segment [Member] \| Originated Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment	845,298
Financing Receivable, Individually Evaluated for Impairment	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment	3,544
Agricultural Financing Receivable [Member] \| Acquired Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Agricultural Financing Receivable [Member] \| Acquired Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Agricultural Financing Receivable [Member] \| Acquired Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Agricultural Financing Receivable [Member] \| Acquired Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Agricultural Financing Receivable [Member] \| Originated Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	32,815
Financing Receivable, Net	us-gaap_NotesReceivableNet	32,947
Agricultural Financing Receivable [Member] \| Originated Loans [Member] \| Doubtful [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	8
Financing Receivable, Net	us-gaap_NotesReceivableNet	8
Agricultural Financing Receivable [Member] \| Originated Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	30,481
Financing Receivable, Net	us-gaap_NotesReceivableNet	31,935
Agricultural Financing Receivable [Member] \| Originated Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	275
Financing Receivable, Net	us-gaap_NotesReceivableNet	49
Agricultural Financing Receivable [Member] \| Originated Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	2,183
Financing Receivable, Net	us-gaap_NotesReceivableNet	823
Agricultural Real Estate Financing Receivable [Member] \| Originated Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	24,974
Financing Receivable, Net	us-gaap_NotesReceivableNet	26,724
Agricultural Real Estate Financing Receivable [Member] \| Originated Loans [Member] \| Doubtful [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Agricultural Real Estate Financing Receivable [Member] \| Originated Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	23,443
Financing Receivable, Net	us-gaap_NotesReceivableNet	25,462
Agricultural Real Estate Financing Receivable [Member] \| Originated Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	37
Financing Receivable, Net	us-gaap_NotesReceivableNet	42
Agricultural Real Estate Financing Receivable [Member] \| Originated Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,225
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,489
Commercial Financing Receivable [Member] \| Acquired Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	75,264
Financing Receivable, Net	us-gaap_NotesReceivableNet	77,662
Commercial Financing Receivable [Member] \| Acquired Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	63,630
Financing Receivable, Net	us-gaap_NotesReceivableNet	72,110
Commercial Financing Receivable [Member] \| Acquired Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	2,840
Financing Receivable, Net	us-gaap_NotesReceivableNet	908
Commercial Financing Receivable [Member] \| Acquired Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	4,644
Financing Receivable, Net	us-gaap_NotesReceivableNet	8,794
Commercial Financing Receivable [Member] \| Originated Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	615,147
Financing Receivable, Net	us-gaap_NotesReceivableNet	630,115
Commercial Financing Receivable [Member] \| Originated Loans [Member] \| Doubtful [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Financing Receivable, Net	us-gaap_NotesReceivableNet	0
Commercial Financing Receivable [Member] \| Originated Loans [Member] \| Pass [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	570,884
Financing Receivable, Net	us-gaap_NotesReceivableNet	579,259
Commercial Financing Receivable [Member] \| Originated Loans [Member] \| Special Mention [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	11,834
Financing Receivable, Net	us-gaap_NotesReceivableNet	6,022
Commercial Financing Receivable [Member] \| Originated Loans [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	38,241
Financing Receivable, Net	us-gaap_NotesReceivableNet	39,022
Direct Financing Receivable Member [Member] \| Acquired Loans [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	4,229
Financing Receivable, Net	us-gaap_NotesReceivableNet	5,317
Direct Financing Receivable Member [Member] \| Acquired Loans [Member] \| Nonperforming Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	40
Financing Receivable, Net	us-gaap_NotesReceivableNet	44
Direct Financing Receivable Member [Member] \| Acquired Loans [Member] \| Performing Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	4,185
Financing Receivable, Net	us-gaap_NotesReceivableNet	5,277
Direct Financing Receivable Member [Member] \| Originated Loans [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	54,452
Financing Receivable, Net	us-gaap_NotesReceivableNet	55,794
Direct Financing Receivable Member [Member] \| Originated Loans [Member] \| Nonperforming Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	136
Financing Receivable, Net	us-gaap_NotesReceivableNet	165
Direct Financing Receivable Member [Member] \| Originated Loans [Member] \| Performing Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	54,287
Financing Receivable, Net	us-gaap_NotesReceivableNet	55,658
Home Equity Financing Receivables [Member] \| Acquired Loans [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	72,270
Financing Receivable, Net	us-gaap_NotesReceivableNet	76,716
Home Equity Financing Receivables [Member] \| Acquired Loans [Member] \| Nonperforming Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	562
Financing Receivable, Net	us-gaap_NotesReceivableNet	622
Home Equity Financing Receivables [Member] \| Acquired Loans [Member] \| Performing Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	71,648
Financing Receivable, Net	us-gaap_NotesReceivableNet	76,154
Home Equity Financing Receivables [Member] \| Originated Loans [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	477,968
Financing Receivable, Net	us-gaap_NotesReceivableNet	492,880
Home Equity Financing Receivables [Member] \| Originated Loans [Member] \| Nonperforming Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	5,554
Financing Receivable, Net	us-gaap_NotesReceivableNet	7,417
Home Equity Financing Receivables [Member] \| Originated Loans [Member] \| Performing Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	472,414
Financing Receivable, Net	us-gaap_NotesReceivableNet	485,463
Indirect Financing Receivable [Member] \| Acquired Loans [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	43,817
Financing Receivable, Net	us-gaap_NotesReceivableNet	65,223
Indirect Financing Receivable [Member] \| Acquired Loans [Member] \| Nonperforming Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	125
Financing Receivable, Net	us-gaap_NotesReceivableNet	160
Indirect Financing Receivable [Member] \| Acquired Loans [Member] \| Performing Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	43,692
Financing Receivable, Net	us-gaap_NotesReceivableNet	65,063
Indirect Financing Receivable [Member] \| Originated Loans [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,310,050
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,398,804
Indirect Financing Receivable [Member] \| Originated Loans [Member] \| Nonperforming Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	2,803
Financing Receivable, Net	us-gaap_NotesReceivableNet	3,955
Indirect Financing Receivable [Member] \| Originated Loans [Member] \| Performing Financing Receivable [Member] \| Consumer Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,306,095
Financing Receivable, Net	us-gaap_NotesReceivableNet	1,396,001
Small Business Financing Receivable [Member] \| Acquired Loans [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	51,918
Financing Receivable, Net	us-gaap_NotesReceivableNet	58,179
Small Business Financing Receivable [Member] \| Acquired Loans [Member] \| Classified [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	4,372
Financing Receivable, Net	us-gaap_NotesReceivableNet	4,915
Small Business Financing Receivable [Member] \| Acquired Loans [Member] \| Non classified [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	47,546
Financing Receivable, Net	us-gaap_NotesReceivableNet	53,264
Small Business Financing Receivable [Member] \| Originated Loans [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	398,435
Financing Receivable, Net	us-gaap_NotesReceivableNet	399,563
Small Business Financing Receivable [Member] \| Originated Loans [Member] \| Classified [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	16,547
Financing Receivable, Net	us-gaap_NotesReceivableNet	18,990
Small Business Financing Receivable [Member] \| Originated Loans [Member] \| Non classified [Member] \| Business Banking Credit Exposure [Member]
Financing Receivable, Net	us-gaap_NotesReceivableNet	379,445
Financing Receivable, Net	us-gaap_NotesReceivableNet	$ 383,016