Community Trust Bancorp (CTBI) 10-Q 8 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 31, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	COMMUNITY TRUST BANCORP INC /KY/
Entity Central Index Key	350,852
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		17,619,010
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 49,584	$ 51,974
Interest bearing deposits	66,425	134,846
Federal funds sold	5,169	791
Cash and cash equivalents	121,178	187,611
Certificates of deposit in other banks	980	3,832
Securities available-for-sale at fair value (amortized cost of $624,418 and $593,381, respectively)	631,201	594,936
Securities held-to-maturity at amortized cost (fair value of $1,182 and $1,651, respectively)	1,181	1,661
Loans held for sale	2,075	1,172
Loans	2,931,299	2,873,961
Allowance for loan and lease losses	(35,801)	(36,094)
Net loans	2,895,498	2,837,867
Premises and equipment, net	47,840	48,188
Federal Home Loan Bank stock	17,927	17,927
Federal Reserve Bank stock	4,887	4,887
Goodwill	65,490	65,490
Core deposit intangible (net of accumulated amortization of $8,443 and $8,324, respectively)	172	291
Bank owned life insurance	63,486	62,335
Mortgage servicing rights	2,964	3,236
Other real estate owned	37,665	40,674
Other assets	37,682	33,827
Total assets	3,930,226	3,903,934
Deposits:
Noninterest bearing	763,187	749,975
Interest bearing	2,290,798	2,230,807
Total deposits	3,053,985	2,980,782
Repurchase agreements	262,295	251,225
Federal funds purchased and other short-term borrowings	6,798	3,596
Advances from Federal Home Loan Bank	971	101,056
Long-term debt	61,341	61,341
Deferred taxes	11,269	8,920
Other liabilities	33,457	21,431
Total liabilities	3,430,116	3,428,351
Shareholders' equity:
Preferred stock, 300,000 shares authorized and unissued	0	0
Common stock, $5 par value, shares authorized 25,000,000; shares outstanding 2016 - 17,607,903; 2015 - 17,536,914	88,039	87,685
Capital surplus	218,819	217,032
Retained earnings	188,843	169,855
Accumulated other comprehensive income, net of tax	4,409	1,011
Total shareholders' equity	500,110	475,583
Total liabilities and shareholders' equity	$ 3,930,226	$ 3,903,934

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Securities available-for-sale at amortized cost	$ 624,418	$ 593,381
Securities held-to-maturity at fair value	1,182	1,651
Core deposit intangible, accumulated amortization	$ 8,443	$ 8,324
Shareholders' equity:
Preferred stock, shares authorized (in shares)	300,000	300,000
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	25,000,000	25,000,000
Common stock, shares outstanding (in shares)	17,607,903	17,536,914

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income and Comprehensive Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income:
Interest and fees on loans, including loans held for sale	$ 33,593	$ 32,847	$ 100,172	$ 97,691
Interest and dividends on securities
Taxable	2,030	2,044	6,188	7,007
Tax exempt	653	679	2,003	2,032
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	251	252	757	756
Other, including interest on federal funds sold	152	90	460	234
Total interest income	36,679	35,912	109,580	107,720
Interest expense:
Interest on deposits	2,799	2,412	8,047	7,077
Interest on repurchase agreements and other short-term borrowings	288	231	836	689
Interest on advances from Federal Home Loan Bank	3	9	51	33
Interest on long-term debt	362	295	1,036	869
Total interest expense	3,452	2,947	9,970	8,668
Net interest income	33,227	32,965	99,610	99,052
Provision for loan losses	2,191	2,520	5,829	6,740
Net interest income after provision for loan losses	31,036	30,445	93,781	92,312
Noninterest income:
Service charges on deposit accounts	6,563	6,348	18,680	17,976
Gains on sales of loans, net	595	462	1,357	1,575
Trust and wealth management income	2,440	2,297	7,111	6,902
Loan related fees	1,260	641	2,610	2,747
Bank owned life insurance	560	581	1,628	1,623
Brokerage revenue	387	395	1,067	1,058
Securities gains	458	12	522	142
Other noninterest income	923	1,299	2,951	2,976
Total noninterest income	13,186	12,035	35,926	34,999
Noninterest expense:
Officer salaries and employee benefits	3,090	3,288	9,147	9,179
Other salaries and employee benefits	11,126	10,687	33,524	32,063
Occupancy, net	2,012	1,942	6,035	5,937
Equipment	733	746	2,177	2,295
Data processing	1,601	1,577	4,729	5,204
Bank franchise tax	1,492	1,272	4,291	3,816
Legal fees	455	505	1,437	1,604
Professional fees	473	524	1,395	1,497
Advertising and marketing	674	649	1,883	1,861
FDIC insurance	469	606	1,628	1,798
Other real estate owned provision and expense	873	1,289	1,892	2,525
Repossession expense	272	347	911	947
Amortization of limited partnership investments	546	1,031	2,078	2,002
Other noninterest expense	2,871	3,071	8,994	8,937
Total noninterest expense	26,687	27,534	80,121	79,665
Income before income taxes	17,535	14,946	49,586	47,646
Income taxes	5,223	3,724	14,106	13,084
Net income	12,312	11,222	35,480	34,562
Unrealized holding gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the period	(2,374)	3,463	5,750	3,525
Less: Reclassification adjustments for realized gains included in net income	458	12	522	142
Tax expense (benefit)	(991)	1,208	1,830	1,184
Other comprehensive income (loss), net of tax	(1,841)	2,243	3,398	2,199
Comprehensive income	$ 10,471	$ 13,465	$ 38,878	$ 36,761
Basic earnings per share (in dollars per share)	$ 0.70	$ 0.64	$ 2.02	$ 1.98
Diluted earnings per share (in dollars per share)	$ 0.70	$ 0.64	$ 2.02	$ 1.98
Weighted average shares outstanding-basic (in shares)	17,554	17,440	17,532	17,420
Weighted average shares outstanding-diluted (in shares)	17,569	17,491	17,548	17,472
Dividends declared per share (in dollars per share)	$ 0.32	$ 0.31	$ 0.94	$ 0.91

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 35,480	$ 34,562
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,878	2,977
Deferred taxes	519	1,711
Stock-based compensation	347	518
Excess tax benefits of stock-based compensation	(58)	190
Provision for loan losses	5,829	6,740
Write-downs of other real estate owned and other repossessed assets	632	1,146
Gains on sale of mortgage loans held for sale	(1,357)	(1,575)
Securities gains	(522)	(142)
(Gains)/losses on sale of assets, net	77	(115)
Proceeds from sale of mortgage loans held for sale	61,339	63,580
Funding of mortgage loans held for sale	(60,885)	(61,724)
Amortization of securities premiums and discounts, net	1,614	2,552
Change in cash surrender value of bank owned life insurance	(1,151)	(1,245)
Mortgage servicing rights:
Fair value adjustments	660	381
New servicing assets created	(388)	(443)
Changes in:
Other assets	(3,902)	(9,612)
Other liabilities	11,967	(1,068)
Net cash provided by operating activities	53,079	38,433
Certificates of deposit in other banks:
Maturity of certificates of deposit	2,852	2,438
Securities available-for-sale (AFS):
Purchase of AFS securities	(159,603)	(36,561)
Proceeds from the sales of AFS securities	54,446	44,198
Proceeds from prepayments and maturities of AFS securities	73,027	56,809
Securities held-to-maturity (HTM):
Proceeds from maturities of HTM securities	480	1
Change in loans, net	(65,136)	(98,730)
Purchase of premises and equipment	(2,411)	(1,685)
Proceeds from sale and retirement of premises and equipment	10	232
Investment in Federal Reserve Bank stock	0	(18)
Proceeds from sale of other real estate and other repossessed assets	4,041	7,563
Investment in other real estate and other repossessed assets	0	(85)
Net cash used in investing activities	(92,294)	(25,838)
Cash flows from financing activities:
Change in deposits, net	73,203	100,972
Change in repurchase agreements, federal funds purchased, and other short-term borrowings, net	14,272	19,141
Advances from Federal Home Loan Bank	0	70,000
Payments on advances from Federal Home Loan Bank	(100,085)	(130,086)
Issuance of common stock	2,262	1,345
Repurchase of common stock	(382)	(189)
Excess tax benefits of stock-based compensation	58	(190)
Dividends paid	(16,546)	(15,913)
Net cash provided by (used in) financing activities	(27,218)	45,080
Net increase (decrease) in cash and cash equivalents	(66,433)	57,675
Cash and cash equivalents at beginning of period	187,611	105,517
Cash and cash equivalents at end of period	121,178	163,192
Supplemental disclosures:
Income taxes paid	13,991	15,199
Interest paid	8,796	7,935
Non-cash activities:
Loans to facilitate the sale of other real estate owned and repossessed assets	2,624	3,548
Common stock dividends accrued, paid in subsequent quarter	212	220
Real estate acquired in settlement of loans	$ 4,300	$ 9,986

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2016
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1 - Summary of Significant Accounting Policies In the opinion of management, the unaudited condensed consolidated financial statements include all adjustments (which consist of normal recurring adjustments) necessary, to present fairly the condensed consolidated financial position as of September 30, 2016, the results of operations for the three and nine months ended September 30, 2016 and 2015, and the cash flows for the nine months ended September 30, 2016 and 2015. In accordance with accounting principles generally accepted in the United States of America for interim financial information, these statements do not include certain information and footnote disclosures required by accounting principles generally accepted in the United States of America for complete annual financial statements. The results of operations for the three and nine months ended September 30, 2016 and 2015, and the cash flows for the nine months ended September 30, 2016 and 2015, are not necessarily indicative of the results to be expected for the full year. The condensed consolidated balance sheet as of December 31, 2015 has been derived from the audited consolidated financial statements of Community Trust Bancorp, Inc. (“CTBI”) for that period. For further information, refer to the consolidated financial statements and footnotes thereto for the year ended December 31, 2015, included in our annual report on Form 10-K. Principles of Consolidation – Reclassifications – New Accounting Standards Ø Elimination of Extraordinary Reporting Income Statement – Extraordinary and Unusual Items (Subtopic 225-20): Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items. The amendments in this ASU were effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Ø Intangibles – Goodwill and Other – Internal-Use Software – In April 2015, the FASB issued ASU No. 2015-05, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) . The amendments in this update provided guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance did not change GAAP for a customer’s accounting for service contracts. In addition, the guidance in this update supersedes paragraph 350-40-25-16. Consequently, all software licenses within the scope of Subtopic 350-40 are accounted for consistent with other licenses of intangible assets. For public business entities, the amendments were effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. Ø Business Combinations: Simplifying the Accounting Measurement-Period Adjustments Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustment Topic 805 requires that an acquirer retrospectively adjust provisional amounts recognized in a business combination, during the measurement period. To simplify the accounting for adjustments made to provisional amounts, the amendments in the Update require that the acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amount is determined. The acquirer is required to also record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. In addition, an entity is required to present separately on the face of the income statement or disclose in the notes to the financial statements the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. Ø Income Taxes Income Taxes (Topic 740) Ø Financial Instruments – Overall Financial Instruments – Overall (Subtopic 825-10) Ø Leases – In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) . · A lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and · A right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers The new lease guidance simplified the accounting for sale and leaseback transactions primarily because lessees must recognize lease assets and lease liabilities. Lessees will no longer be provided with a source of off-balance sheet financing. Public business entities should apply the amendments in ASU 2016-02 for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (i.e., January 1, 2019, for a calendar year entity). Early application is permitted upon issuance. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. We are currently evaluating the impact of ASU 2016-02 on our consolidated financial statements. Ø Investments—Equity Method and Joint Ventures: Simplifying the Transition to the Equity Method of Accounting FASB issued Accounting Standards Update (ASU) No. 2016-07, Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting. The amendments affect all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. The amendments eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The amendments are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. Earlier application is permitted. Ø Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting FASB issued Accounting Standards Update (ASU) No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments are intended to improve the accounting for employee share-based payments and affect all organizations that issue share-based payment awards to their employees. Several aspects of the accounting for share-based payment award transactions are simplified, including: (a) (b) (c) For public companies, the amendments are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any organization in any interim or annual period. Ø Revenue from Contracts with Customers Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing. (a) (b) The effective date and transition requirements for the amendments are the same as the effective date and transition requirements in Topic 606. Public entities should apply the amendments for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein (i.e., January 1, 2018, for a calendar year entity). Early application for public entities is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The effective date for nonpublic entities is deferred by one year. Management does not expect this ASU to have a material impact on CTBI’s consolidated financial statements. Ø Revenue Recognition Narrow-Scope Amendments and Practical Expedients Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients. do not change the core revenue recognition principle in Topic 606. The amendments provide clarifying guidance in certain narrow areas and add some practical expedients. These amendments are effective at the same date that Topic 606 is effective. Topic 606 is effective for public entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein (i.e., January 1, 2018, for a calendar year entity). Ø Accounting for Credit Losses Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU is intended to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The ASU requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. Organizations will continue to use judgment to determine which loss estimation method is appropriate for their circumstances. The ASU requires enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. These disclosures include qualitative and quantitative requirements that provide additional information about the amounts recorded in the financial statements. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The ASU is effective for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019 (i.e., January 1, 2020, for calendar year entities). Early application will be permitted for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Ø Statement of Cash Flows Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. Stakeholders indicated that there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other Topics. This ASU addresses the following eight specific cash flow issues: Debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (COLIs) (including bank-owned life insurance policies (BOLIs)); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. The amendments in this Update apply to all entities, including both business entities and not-for-profit entities that are required to present a statement of cash flows under Topic 230. This Update is the final version of Proposed Accounting Standards Update EITF-15F— Statement of Cash Flows—Classification of Certain Cash Receipts and Cash Payments (Topic 230) , which has been deleted. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The amendments in this Update should be applied using a retrospective transition method to each period presented. If it is impracticable to apply the amendments retrospectively for some of the issues, the amendments for those issues would be applied prospectively as of the earliest date practicable. We do not expect Critical Accounting Policies and Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires the appropriate application of certain accounting policies, many of which require us to make estimates and assumptions about future events and their impact on amounts reported in our consolidated financial statements and related notes. Since future events and their impact cannot be determined with certainty, the actual results will inevitably differ from our estimates. Such differences could be material to the consolidated financial statements. We believe the application of accounting policies and the estimates required therein are reasonable. These accounting policies and estimates are constantly reevaluated, and adjustments are made when facts and circumstances dictate a change. Historically, we have found our application of accounting policies to be appropriate, and actual results have not differed materially from those determined using necessary estimates. We have identified the following critical accounting policies: Investments Investment Securities a. Trading securities . . b. Available-for-sale securities. Investments not classified as trading securities (nor as held-to-maturity securities) shall be classified as available-for-sale securities. We do not have any securities that are classified as trading securities. Available-for-sale securities are reported at fair value, with unrealized gains and losses included as a separate component of shareholders’ equity, net of tax. If declines in fair value are other than temporary, the carrying value of the securities is written down to fair value as a realized loss with a charge to income for the portion attributable to credit losses and a charge to other comprehensive income for the portion that is not credit related. Gains or losses on disposition of securities are computed by specific identification for all securities except for shares in mutual funds, which are computed by average cost. Interest and dividend income, adjusted by amortization of purchase premium or discount, is included in earnings. When the fair value of a security is below its amortized cost, and depending on the length of time the condition exists and the extent the fair market value is below amortized cost, additional analysis is performed to determine whether an other than temporary impairment condition exists. Available-for-sale and held-to-maturity securities are analyzed quarterly for possible other than temporary impairment. The analysis considers (i) whether we have the intent to sell our securities prior to recovery and/or maturity and (ii) whether it is more likely than not that we will not have to sell our securities prior to recovery and/or maturity. Often, the information available to conduct these assessments is limited and rapidly changing, making estimates of fair value subject to judgment. If actual information or conditions are different than estimated, the extent of the impairment of the security may be different than previously estimated, which could have a material effect on the CTBI’s results of operations and financial condition. Loans A restructuring of a debt constitutes a troubled debt restructuring if the creditor for economic or legal reasons related to the debtor’s financial difficulties grants a concession to the debtor that it would not otherwise consider. Loan origination and commitment fees and certain direct loan origination costs are deferred and the net amount amortized over the estimated life of the related loans, leases, or commitments as a yield adjustment. Allowance for Loan and Lease Losses We utilize an internal risk grading system for commercial credits. Those larger commercial credits that exhibit probable or observed credit weaknesses are subject to individual review. The borrower’s cash flow, adequacy of collateral coverage, and other options available to CTBI, including legal remedies, are evaluated. The review of individual loans includes those loans that are impaired as defined by ASC 310-10-35, Impairment of a Loan A loan is considered impaired when, based on current information and events, it is probable that CTBI will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Homogenous loans, such as consumer installment, residential mortgages, and home equity lines are not individually risk graded. The associated ALLL for these loans is measured under ASC 450, Contingencies When any secured commercial loan is considered uncollectable, whether past due or not, a current assessment of the value of the underlying collateral is made. If the balance of the loan exceeds the fair value of the collateral, the loan is placed on nonaccrual and the loan is charged down to the value of the collateral less estimated cost to sell or a specific reserve equal to the difference between book value of the loan and the fair value assigned to the collateral is created until such time as the loan is foreclosed. When the foreclosed collateral has been legally assigned to CTBI, a charge off is taken, if necessary, in order that the remaining balance reflects the fair value estimated less costs to sell of the collateral then transferred to other real estate owned or other repossessed assets. When any unsecured commercial loan is considered uncollectable the loan is charged off no later than at 90 days past due. All closed-end consumer loans (excluding conventional 1-4 family residential loans and installment and revolving loans secured by real estate) are charged off no later than 120 days (5 monthly payments) delinquent. If a loan is considered uncollectable, it is charged off earlier than 120 days delinquent. For conventional 1-4 family residential loans and installment and revolving loans secured by real estate, when a loan is 90 days past due, a current assessment of the value of the real estate is made. If the balance of the loan exceeds the fair value of the property, the loan is placed on nonaccrual. Foreclosure proceedings are normally initiated after 120 days. When the foreclosed property has been legally assigned to CTBI, the fair value less estimated costs to sell is transferred to other real estate owned and the remaining balance is taken as a charge-off. Historical loss rates for loans are adjusted for significant factors that, in management’s judgment, reflect the impact of any current conditions on loss recognition. We use twelve rolling quarters for our historical loss rate analysis. Factors that we consider include delinquency trends, current economic conditions and trends, strength of supervision and administration of the loan portfolio, levels of underperforming loans, level of recoveries to prior year’s charge-offs, trends in loan losses, industry concentrations and their relative strengths, amount of unsecured loans, and underwriting exceptions. Management continually reevaluates the other subjective factors included in its ALLL analysis. Other Real Estate Owned All revenues and expenses related to the carrying of other real estate owned are recognized through the income statement. Income Taxes

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2016
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 2 – Stock-Based Compensation CTBI’s compensation expense related to stock option grants was $15 thousand and $10 thousand, respectively, for the three months ended September 30, 2016 and 2015, and $42 thousand and $29 thousand, respectively for the nine months ended September 30, 2016 and 2015. Restricted stock expense for the three months ended September 30, 2016 and 2015 was $97 thousand and $186 thousand, respectively, including $9 thousand and $20 thousand in dividends paid for each period. Restricted stock expense for the nine months ended September 30, 2016 and 2015 was $305 thousand and $554 thousand, respectively, including $28 thousand and $59 thousand in dividends. As of September 30, 2016, there was a total of $0.2 million of unrecognized compensation expense related to unvested stock option awards that will be recognized as expense as the awards vest over a weighted average period of 3.5 years and a total of $0.7 million of unrecognized compensation expense related to restricted stock grants that will be recognized as expense as the awards vest over a weighted average period of 2.8 years. There were 18,069 and 10,582 shares of restricted stock granted during the nine months ended September 30, 2016 and 2015, respectively. No shares of restricted stock were granted during the three months ended September 30, 2016 and 2015. The restricted stock granted in 2016 was issued pursuant to the terms of CTBI’s 2015 Stock Ownership Incentive Plan. The restrictions on the restricted stock granted in 2016 will lapse ratably over four years. However, in the event of certain participant employee termination events occurring within 24 months of a change in control of CTBI or the death of the participant, the restrictions will lapse, and in the event of the participant’s disability, the restrictions will lapse on a pro rata basis. The Compensation Committee will have discretion to review and revise restrictions applicable to a participant’s restricted stock in the event of the participant’s retirement. The restricted stock granted in 2015 was issued pursuant to the terms of the 2006 Stock Ownership Incentive Plan. The restrictions on the restricted stock granted in 2015 lapse ratably over four years or in the event of a change in control of CTBI or the death of the participant. In the event of the disability of the participant, the restrictions will lapse on a pro rata basis. The Compensation Committee of the Board of Directors will have discretion to review and revise restrictions applicable to a participant’s restricted stock in the event of the participant’s retirement. There were 10,000 and 20,000 stock options granted during the nine months ended September 30, 2016 and 2015. No stock options were granted during the three months ended September 30, 2016 and 2015. The fair value of stock options granted during the nine months ended September 30, 2016 and 2015 were established at the date of grant using a Black-Scholes option pricing model with the weighted average assumptions as follows: Nine Months Ended September 30 2016 2015 Expected dividend yield 3.72 % 3.72 % Risk-free interest rate 1.45 % 1.54 % Expected volatility 30.77 % 30.77 % Expected term (in years) 7.0 7.0 Weighted average fair value of options $ 6.80 $ 6.60

Securities

Securities	9 Months Ended
	Sep. 30, 2016
Securities [Abstract]
Securities	Note 3 – Securities Securities are classified into held-to-maturity and available-for-sale categories. Held-to-maturity (HTM) securities are those that CTBI has the positive intent and ability to hold to maturity and are reported at amortized cost. Available-for-sale (AFS) securities are those that CTBI may decide to sell if needed for liquidity, asset-liability management or other reasons. Available-for-sale securities are reported at fair value, with unrealized gains or losses included as a separate component of equity, net of tax. The amortized cost and fair value of securities at September 30, 2016 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 243,980 $ 1,311 $ (180 ) $ 245,111 State and political subdivisions 128,644 4,646 (115 ) 133,175 U.S. government sponsored agency mortgage-backed securities 226,794 1,820 (843 ) 227,771 Total debt securities 599,418 7,777 (1,138 ) 606,057 CRA investment funds 25,000 293 (149 ) 25,144 Total available-for-sale securities $ 624,418 $ 8,070 $ (1,287 ) $ 631,201 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value State and political subdivisions $ 1,181 $ 1 $ 0 $ 1,182 Total held-to-maturity securities $ 1,181 $ 1 $ 0 $ 1,182 The amortized cost and fair value of securities at December 31, 2015 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 240,434 $ 311 $ (1,351 ) $ 239,394 State and political subdivisions 125,665 3,707 (157 ) 129,215 U.S. government sponsored agency mortgage-backed securities 202,282 1,564 (2,270 ) 201,576 Total debt securities 568,381 5,582 (3,778 ) 570,185 CRA investment funds 25,000 132 (381 ) 24,751 Total available-for-sale securities $ 593,381 $ 5,714 $ (4,159 ) $ 594,936 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 480 $ 0 $ (12 ) $ 468 State and political subdivisions 1,181 2 0 1,183 Total held-to-maturity securities $ 1,661 $ 2 $ (12 ) $ 1,651 The amortized cost and fair value of securities at September 30, 2016 by contractual maturity are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Available-for-Sale Held-to-Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 68,479 $ 68,576 $ 0 $ 0 Due after one through five years 154,511 156,366 1,181 1,182 Due after five through ten years 63,044 65,336 0 0 Due after ten years 86,590 88,008 0 0 U.S. government sponsored agency mortgage-backed securities 226,794 227,771 0 0 Total debt securities 599,418 606,057 1,181 1,182 CRA investment funds 25,000 25,144 0 0 Total securities $ 624,418 $ 631,201 $ 1,181 $ 1,182 During the three months ended September 30, 2016, there was a net gain of $458 thousand on sales and calls of AFS securities, consisting of a pre-tax gain of $460 thousand and a pre-tax loss of $2 thousand. During the three months ended September 30, 2015, there was a net gain of $12 thousand on sales. During the nine months ended September 30, 2016, there was a combined gain of $522 thousand on sales and calls of AFS securities, consisting of a pre-tax gain of $529 thousand and a pre-tax loss of $7 thousand. During the nine months ended September 30, 2015, there was a combined gain of $142 thousand on sales and calls of AFS securities, consisting of a pre-tax gain of $840 thousand and a pre-tax loss of $698 thousand. The amortized cost of securities pledged as collateral, to secure public deposits and for other purposes, was $203.4 million at September 30, 2016 and $228.2 million at December 31, 2015. The amortized cost of securities sold under agreements to repurchase amounted to $297.4 million at September 30, 2016 and $285.5 million at December 31, 2015. CTBI evaluates its investment portfolio on a quarterly basis for impairment. The analysis performed as of September 30, 2016 indicates that all impairment is considered temporary, market and interest rate driven, and not credit-related. The percentage of total investments with unrealized losses as of September 30, 2016 was 36.0% compared to 61.1% as of December 31, 2015. The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of September 30, 2016 that are not deemed to be other-than-temporarily impaired. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 58,160 $ (155 ) $ 58,005 State and political subdivisions 10,697 (105 ) 10,592 U.S. government sponsored agency mortgage-backed securities 109,623 (308 ) 109,315 Total debt securities 178,480 (568 ) 177,912 CRA investment funds 10,000 (27 ) 9,973 Total <12 months temporarily impaired AFS securities 188,480 (595 ) 187,885 12 Months or More U.S. Treasury and government agencies 1,927 (25 ) 1,902 State and political subdivisions 753 (10 ) 743 U.S. government sponsored agency mortgage-backed securities 32,712 (535 ) 32,177 Total debt securities 35,392 (570 ) 34,822 CRA investment funds 5,000 (122 ) 4,878 Total ≥12 months temporarily impaired AFS securities 40,392 (692 ) 39,700 Total U.S. Treasury and government agencies 60,087 (180 ) 59,907 State and political subdivisions 11,450 (115 ) 11,335 U.S. government sponsored agency mortgage-backed securities 142,335 (843 ) 141,492 Total debt securities 213,872 (1,138 ) 212,734 CRA investment funds 15,000 (149 ) 14,851 Total temporarily impaired AFS securities $ 228,872 $ (1,287 ) $ 227,585 The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of December 31, 2015 that are not deemed to be other-than-temporarily impaired. The analysis performed as of December 31, 2015 indicated that all impairment was considered temporary, market and interest rate driven, and not credit-related. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 142,147 $ (487 ) $ 141,660 State and political subdivisions 11,190 (106 ) 11,084 U.S. government sponsored agency mortgage-backed securities 92,009 (899 ) 91,110 Total debt securities 245,346 (1,492 ) 243,854 CRA investment funds 10,000 (183 ) 9,817 Total <12 months temporarily impaired AFS securities 255,346 (1,675 ) 253,671 12 Months or More U.S. Treasury and government agencies 54,773 (864 ) 53,909 State and political subdivisions 3,187 (51 ) 3,136 U.S. government sponsored agency mortgage-backed securities 49,908 (1,371 ) 48,537 Total debt securities 107,868 (2,286 ) 105,582 CRA investment funds 5,000 (198 ) 4,802 Total ≥12 months temporarily impaired AFS securities 112,868 (2,484 ) 110,384 Total U.S. Treasury and government agencies 196,920 (1,351 ) 195,569 State and political subdivisions 14,377 (157 ) 14,220 U.S. government sponsored agency mortgage-backed securities 141,917 (2,270 ) 139,647 Total debt securities 353,214 (3,778 ) 349,436 CRA investment funds 15,000 (381 ) 14,619 Total temporarily impaired AFS securities $ 368,214 $ (4,159 ) $ 364,055 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Losses Fair Value 12 Months or More U.S. Treasury and government agencies $ 480 $ (12 ) $ 468 Total temporarily impaired HTM securities $ 480 $ (12 ) $ 468 U.S. Treasury and Government Agencies The unrealized losses in U.S. Treasury and government agencies were caused by interest rate increases. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than amortized cost. CTBI does not consider those investments to be other-than-temporarily impaired at September 30, 2016, because CTBI does not intend to sell the investments and it is not more likely than not that we will be required to sell the investments before recovery of their amortized cost, which may be at maturity. State and Political Subdivisions The unrealized losses in securities of state and political subdivisions were caused by interest rate increases. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than amortized cost. CTBI does not consider those investments to be other-than-temporarily impaired at September 30, 2016, because CTBI does not intend to sell the investments before recovery of their amortized cost, which may be at maturity. U.S. Government Sponsored Agency Mortgage-Backed Securities The unrealized losses in U.S. government sponsored agency mortgage-backed securities were caused by interest rate increases. CTBI expects to recover the amortized cost basis over the term of the securities. CTBI does not consider those investments to be other-than-temporarily impaired at September 30, 2016, because (i) the decline in market value is attributable to changes in interest rates and not credit quality, (ii) CTBI does not intend to sell the investments, and (iii) it is not more likely than not we will be required to sell the investments before recovery of their amortized cost, which may be at maturity. CRA Investment Funds CTBI’s CRA investment funds consist of investments in fixed income mutual funds ($25.1 million of the total fair value and $0.1 million of the total gross unrealized losses in common stock investments). The severity of the impairment (fair value is approximately 0.6% less than cost) and the duration of the impairment correlates with the decline in long-term interest rates in 2016. CTBI evaluated the near-term prospects of these funds in relation to the severity and duration of the impairment. Based on that evaluation, CTBI does not consider those investments to be other-than-temporarily impaired at September 30, 2016.

Loans

Loans	9 Months Ended
	Sep. 30, 2016
Loans [Abstract]
Loans	Note 4 – Loans Major classifications of loans, net of unearned income, deferred loan origination costs, and net premiums on acquired loans, are summarized as follows: (in thousands) September 30 2016 December 31 2015 Commercial construction $ 68,275 $ 78,020 Commercial secured by real estate 1,083,640 1,052,919 Equipment lease financing 6,242 8,514 Commercial other 354,984 358,898 Real estate construction 55,412 61,750 Real estate mortgage 706,028 707,874 Home equity 89,467 89,450 Consumer direct 131,815 126,406 Consumer indirect 435,436 390,130 Total loans $ 2,931,299 $ 2,873,961 CTBI has segregated and evaluates its loan portfolio through nine portfolio segments. CTBI serves customers in small and mid-sized communities in eastern, northeastern, central, and south central Kentucky, southern West Virginia, and northeastern Tennessee. Therefore, CTBI’s exposure to credit risk is significantly affected by changes in these communities. Commercial construction loans are for the purpose of erecting or rehabilitating buildings or other structures for commercial purposes, including any infrastructure necessary for development. Included in this category are improved property, land development, and tract development loans. The terms of these loans are generally short-term with permanent financing upon completion. Commercial real estate loans include loans secured by nonfarm, nonresidential properties, 1-4 family/multi-family properties, farmland, and other commercial real estate. These loans are originated based on the borrower’s ability to service the debt and secondarily based on the fair value of the underlying collateral. Equipment lease financing loans are fixed, variable, and tax exempt leases for commercial purposes. Commercial other loans consist of commercial check loans, agricultural loans, receivable financing, floorplans, loans to financial institutions, loans for purchasing or carrying securities, and other commercial purpose loans. Commercial loans are underwritten based on the borrower’s ability to service debt from the business’s underlying cash flows. As a general practice, we obtain collateral such as real estate, equipment, or other assets, although such loans may be uncollateralized but guaranteed. Real estate construction loans are typically for owner-occupied properties. The terms of these loans are generally short-term with permanent financing upon completion. Residential real estate loans are a mixture of fixed rate and adjustable rate first and second lien residential mortgage loans. As a policy, CTBI holds adjustable rate loans and sells the majority of its fixed rate first lien mortgage loans into the secondary market. Changes in interest rates or market conditions may impact a borrower’s ability to meet contractual principal and interest payments. Residential real estate loans are secured by real property. Home equity lines are revolving adjustable rate credit lines secured by real property. Consumer direct loans are a mixture of fixed rate and adjustable rate products comprised of unsecured loans, consumer revolving credit lines, deposit secured loans, and all other consumer purpose loans. Consumer indirect loans are fixed rate loans secured by automobiles, trucks, vans, and recreational vehicles originated at the selling dealership underwritten and purchased by CTBI’s indirect lending department. Both new and used products are financed. Only dealers who have executed dealer agreements with CTBI participate in the indirect lending program. Not i Refer to note 1 to the condensed consolidated financial statements for further information regarding our nonaccrual policy. Nonaccrual loans segregated by class of loans were as follows: (in thousands) September 30 2016 December 31 2015 Commercial: Commercial construction $ 2,216 $ 3,402 Commercial secured by real estate 7,328 5,928 Commercial other 1,446 1,485 Residential: Real estate construction 11 249 Real estate mortgage 5,475 5,206 Home equity 322 183 Consumer: Consumer direct 0 110 Total nonaccrual loans $ 16,798 $ 16,563 The following tables present CTBI’s loan portfolio aging analysis, segregated by class, as of September 30, 2016 and December 31, 2015: September 30, 2016 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 41 $ 0 $ 2,215 $ 2,256 $ 66,019 $ 68,275 $ 24 Commercial secured by real estate 3,720 2,850 9,196 15,766 1,067,874 1,083,640 5,001 Equipment lease financing 0 0 0 0 6,242 6,242 0 Commercial other 1,277 236 1,283 2,796 352,188 354,984 345 Residential: Real estate construction 1,386 286 478 2,150 53,262 55,412 478 Real estate mortgage 897 5,762 8,369 15,028 691,000 706,028 4,819 Home equity 947 320 641 1,908 87,559 89,467 405 Consumer: Consumer direct 901 250 109 1,260 130,555 131,815 109 Consumer indirect 2,406 977 317 3,700 431,736 435,436 317 Total $ 11,575 $ 10,681 $ 22,608 $ 44,864 $ 2,886,435 $ 2,931,299 $ 11,498 December 31, 2015 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 36 $ 6 $ 3,431 $ 3,473 $ 74,547 $ 78,020 $ 30 Commercial secured by real estate 2,947 622 7,923 11,492 1,041,427 1,052,919 3,757 Equipment lease financing 199 0 0 199 8,315 8,514 0 Commercial other 762 121 1,476 2,359 356,539 358,898 310 Residential: Real estate construction 443 62 291 796 60,954 61,750 55 Real estate mortgage 1,128 3,888 10,907 15,923 691,951 707,874 6,925 Home equity 527 148 580 1,255 88,195 89,450 448 Consumer: Consumer direct 835 479 126 1,440 124,966 126,406 126 Consumer indirect 2,133 814 395 3,342 386,788 390,130 395 Total $ 9,010 $ 6,140 $ 25,129 $ 40,279 $ 2,833,682 $ 2,873,961 $ 12,046 *90+ and Accruing are also included in 90+ Days Past Due column. The risk characteristics of CTBI’s material portfolio segments are as follows: Commercial construction loans generally are made to customers for the purpose of building income-producing properties. Personal guarantees of the principals are generally required. Such loans are made on a projected cash flow basis and are secured by the project being constructed. Construction loan draw procedures are included in each specific loan agreement, including required documentation items and inspection requirements. Construction loans may convert to term loans at the end of the construction period, or may be repaid by the take-out commitment from another financing source. If the loan is to convert to a term loan, the repayment ability is based on the borrower’s projected cash flow. Risk is mitigated during the construction phase by requiring proper documentation and inspections whenever a draw is requested. Loans in amounts greater than $500,000 generally require a performance bond to be posted by the general contractor to assure completion of the project. Commercial real estate loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate lending typically involves higher loan principal amounts and the repayment of these loans is generally dependent on the successful operation of the property securing the loan or the business conducted on the property securing the loan. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. Management monitors and evaluates commercial real estate loans based on collateral and risk grade criteria. Equipment lease financing is underwritten by our commercial lenders using the same underwriting standards as would be applied to a secured commercial loan requesting 100% financing. The pricing for equipment lease financing is comparable to that of borrowers with similar quality commercial credits with similar collateral. Maximum terms of equipment leasing are determined by the type and expected life of the equipment to be leased. Residual values are determined by appraisals or opinion letters from industry experts. Leases must be in conformity with our consolidated annual tax plan. As we underwrite our equipment lease financing in a manner similar to our commercial loan portfolio described below, the risk characteristics for this portfolio mirror that of the commercial loan portfolio. Commercial loans are primarily based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. The cash flows of borrowers, however, may not be as expected and the collateral securing these loans may fluctuate in value. Most commercial loans are secured by the assets being financed or other business assets such as accounts receivable or inventory and may incorporate a personal guarantee; however, some short-term loans may be made on an unsecured basis. In the case of loans secured by accounts receivable, the availability of funds for the repayment of these loans may be substantially dependent on the ability of the borrower to collect amounts due from its customers. With respect to residential loans that are secured by 1-4 family residences and are generally owner occupied, CTBI generally establishes a maximum loan-to-value ratio and requires private mortgage insurance if that ratio is exceeded. Home equity loans are typically secured by a subordinate interest in 1-4 family residences. Residential construction loans are handled through the home mortgage area of the bank. The repayment ability of the borrower and the maximum loan-to-value ratio are calculated using the normal mortgage lending criteria. Draws are processed based on percentage of completion stages including normal inspection procedures. Such loans generally convert to term loans after the completion of construction. Consumer loans are secured by consumer assets such as automobiles or recreational vehicles. Some consumer loans are unsecured such as small installment loans and certain lines of credit. Our determination of a borrower’s ability to repay these loans is primarily dependent on the personal income and credit rating of the borrowers, which can be impacted by economic conditions in their market areas such as unemployment levels. Repayment can also be impacted by changes in property values on residential properties. Risk is mitigated by the fact that the loans are of smaller individual amounts and spread over a large number of borrowers. The indirect lending area of the bank generally deals with purchasing/funding consumer contracts with new and used automobile dealers. The dealers generate consumer loan applications which are forwarded to the indirect loan processing area for approval or denial. Loan approvals or denials are based on the creditworthiness and repayment ability of the borrower, and on the collateral value. The dealers may have recourse agreements with the Bank. Credit Quality Indicators: CTBI categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. CTBI also considers the fair value of the underlying collateral and the strength and willingness of the guarantor(s). CTBI analyzes commercial loans individually by classifying the loans as to credit risk. Loans classified as loss, doubtful, substandard, or special mention are reviewed quarterly by CTBI for further deterioration or improvement to determine if appropriately classified and valued if deemed impaired. All other commercial loan reviews are completed every 12 to 18 months. In addition, during the renewal process of any loan, as well as if a loan becomes past due or if other information becomes available, CTBI will evaluate the loan grade. CTBI uses the following definitions for risk ratings: Ø Pass Ø Watch Ø Other assets especially mentioned (OAEM) Ø Substandard Ø Doubtful The following tables present the credit risk profile of CTBI’s commercial loan portfolio based on rating category and payment activity, segregated by class of loans, as of September 30, 2016 and December 31, 2015: (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Leases Commercial Other Total September 30, 2016 Pass $ 55,878 $ 970,069 $ 5,885 $ 304,799 $ 1,336,631 Watch 4,006 54,232 0 31,638 89,876 OAEM 2,330 27,688 357 6,675 37,050 Substandard 5,871 31,095 0 11,052 48,018 Doubtful 190 556 0 820 1,566 Total $ 68,275 $ 1,083,640 $ 6,242 $ 354,984 $ 1,513,141 December 31, 2015 Pass $ 62,978 $ 937,196 $ 8,514 $ 312,100 $ 1,320,788 Watch 4,931 71,830 0 37,670 114,431 OAEM 2,206 13,765 0 963 16,934 Substandard 6,780 29,232 0 7,072 43,084 Doubtful 1,125 896 0 1,093 3,114 Total $ 78,020 $ 1,052,919 $ 8,514 $ 358,898 $ 1,498,351 The following tables present the credit risk profile of the CTBI’s residential real estate and consumer loan portfolios based on performing or nonperforming status, segregated by class, as of September 30, 2016 and December 31, 2015: (in thousands) Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total September 30, 2016 Performing $ 54,923 $ 695,734 $ 88,740 $ 131,706 $ 435,119 $ 1,406,222 Nonperforming (1) 489 10,294 727 109 317 11,936 Total $ 55,412 $ 706,028 $ 89,467 $ 131,815 $ 435,436 $ 1,418,158 December 31, 2015 Performing $ 61,446 $ 695,743 $ 88,819 $ 126,170 $ 389,735 $ 1,361,913 Nonperforming (1) 304 12,131 631 236 395 13,697 Total $ 61,750 $ 707,874 $ 89,450 $ 126,406 $ 390,130 $ 1,375,610 (1) A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual. The total of consumer mortgage loans secured by real estate properties in formal foreclosure proceedings was $3.3 million at September 30, 2016 compared to $4.4 million at December 31, 2015. A loan is considered impaired, in accordance with the impairment accounting guidance (ASC 310-10-35-16), when based on current information and events, it is probable CTBI will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. Impaired loans include nonperforming commercial loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. These concessions could include a reduction in the interest rate on the loan, payment extensions, forgiveness of principal, forbearance, or other actions intended to maximize collection. The following table presents impaired loans, the average investment in impaired loans, and interest income recognized on impaired loans for the periods ended September 30, 2016, December 31, 2015, and September 30, 2015: September 30, 2016 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,270 $ 4,293 $ 0 Commercial secured by real estate 32,311 33,004 0 Commercial other 11,382 13,191 0 Real estate mortgage 1,489 1,489 0 Loans with a specific valuation allowance: Commercial construction 1,668 1,670 212 Commercial secured by real estate 3,537 4,688 747 Commercial other 388 408 190 Totals: Commercial construction 5,938 5,963 212 Commercial secured by real estate 35,848 37,692 747 Commercial other 11,770 13,599 190 Real estate mortgage 1,489 1,489 0 Total $ 55,045 $ 58,743 $ 1,149 Three Months Ended Nine Months Ended September 30, 2016 September 30, 2016 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,299 $ 63 $ 4,450 $ 168 Commercial secured by real estate 32,534 390 31,795 1,164 Commercial other 11,497 153 11,564 470 Real estate mortgage 1,492 15 1,759 45 Loans with a specific valuation allowance: Commercial construction 1,798 0 2,524 0 Commercial secured by real estate 3,547 1 3,957 19 Commercial other 405 0 597 0 Totals: Commercial construction 6,097 63 6,974 168 Commercial secured by real estate 36,081 391 35,752 1,183 Commercial other 11,902 153 12,161 470 Real estate mortgage 1,492 15 1,759 45 Total $ 55,572 $ 622 $ 56,646 $ 1,866 December 31, 2015 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 2,861 $ 2,862 $ 0 $ 4,574 $ 200 Commercial secured by real estate 30,761 32,166 0 30,605 1,378 Commercial other 7,500 9,148 0 8,802 316 Real estate mortgage 1,744 1,744 0 1,179 50 Loans with a specific valuation allowance: Commercial construction 3,402 3,402 831 3,631 0 Commercial secured by real estate 2,660 2,768 1,227 2,349 7 Commercial other 960 1,153 403 836 1 Totals: Commercial construction 6,263 6,264 831 8,205 200 Commercial secured by real estate 33,421 34,934 1,227 32,954 1,385 Commercial other 8,460 10,301 403 9,638 317 Real estate mortgage 1,744 1,744 0 1,179 50 Total $ 49,888 $ 53,243 $ 2,461 $ 51,976 $ 1,952 September 30, 2015 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,669 $ 4,669 $ 0 Commercial secured by real estate 30,318 31,551 0 Commercial other 7,163 8,804 0 Real estate mortgage 1,189 1,189 0 Loans with a specific valuation allowance: Commercial construction 3,411 3,412 719 Commercial secured by real estate 835 1,075 317 Commercial other 754 935 312 Totals: Commercial construction 8,080 8,081 719 Commercial secured by real estate 31,153 32,626 317 Commercial other 7,917 9,739 312 Real estate mortgage 1,189 1,189 0 Total $ 48,339 $ 51,635 $ 1,348 Three Months Ended Nine Months Ended September 30, 2015 September 30, 2015 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,864 $ 41 $ 5,142 $ 160 Commercial secured by real estate 30,713 316 30,357 985 Commercial other 7,312 73 9,182 201 Real estate mortgage 1,183 13 1,090 37 Loans with a specific valuation allowance: Commercial construction 3,445 0 3,712 0 Commercial secured by real estate 841 6 2,244 7 Commercial other 776 1 788 1 Totals: Commercial construction 8,309 41 8,854 160 Commercial secured by real estate 31,554 322 32,601 992 Commercial other 8,088 74 9,970 202 Real estate mortgage 1,183 13 1,090 37 Total $ 49,134 $ 450 $ 52,515 $ 1,391 *Cash basis interest is substantially the same as interest income recognized. Included in certain loan categories of impaired loans are certain loans and leases that have been modified in a troubled debt restructuring, where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Modifications of terms for our loans and their inclusion as troubled debt restructurings are based on individual facts and circumstances. Loan modifications that are included as troubled debt restructurings may involve either an increase or reduction of the interest rate, extension of the term of the loan, or deferral of principal and/or interest payments, regardless of the period of the modification. All of the loans identified as troubled debt restructuring were modified due to financial stress of the borrower. In order to determine if a borrower is experiencing financial difficulty, an evaluation is performed to determine the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under CTBI’s internal underwriting policy. When we modify loans and leases in a troubled debt restructuring, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan or lease agreement, or use the current fair value of the collateral, less selling costs for collateral dependent loans. If we determined that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, we evaluate all troubled debt restructuring, including those that have payment defaults, for possible impairment and recognize impairment through the allowance. During 2016, Three Months Ended September 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial secured by real estate 2 $ 152 $ 0 $ 0 $ 152 Total troubled debt restructurings 2 $ 152 $ 0 $ 0 $ 152 Nine Months Ended September 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 5 $ 1,408 $ 0 $ 0 $ 1,408 Commercial secured by real estate 23 5,761 0 580 6,341 Commercial other 16 5,041 0 0 5,041 Residential: Real estate mortgage 1 0 0 280 280 Total troubled debt restructurings 45 $ 12,210 $ 0 $ 860 $ 13,070 Three Months Ended September 30, 2015 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial secured by real estate 5 $ 346 $ 0 $ 165 $ 511 Commercial other 1 1,139 0 0 1,139 Total troubled debt restructurings 6 $ 1,485 $ 0 $ 165 $ 1,650 Nine Months Ended September 30, 2015 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial secured by real estate 13 $ 953 $ 0 $ 165 $ 1,118 Commercial other 4 1,193 0 0 1,193 Residential: Real estate mortgage 1 0 0 290 290 Total troubled debt restructurings 18 $ 2,146 $ 0 $ 455 $ 2,601 Year Ended December 31, 2015 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 3 $ 428 $ 0 $ 0 $ 428 Commercial secured by real estate 21 4,244 0 1,760 6,004 Commercial other 7 3,847 0 0 3,847 Residential: Real estate mortgage 3 0 0 848 848 Total troubled debt restructurings 34 $ 8,519 $ 0 $ 2,608 $ 11,127 No charge-offs have resulted from modifications for any of the presented periods. Loans retain their accrual status at the time of their modification. As a result, if a loan is on nonaccrual at the time it is modified, it stays as nonaccrual, and if a loan is on accrual at the time of the modification, it generally stays on accrual. Commercial and consumer loans modified in a troubled debt restructuring are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a troubled debt restructuring subsequently default, CTBI evaluates the loan for possible further impairment. The allowance for loan losses may be increased, adjustments may be made in the allocation of the allowance, or partial charge-offs may be taken to further write-down the carrying value of the loan. Presented below, segregated by class of loans, are loans that were modified as troubled debt restructurings within the past twelve months which have subsequently defaulted. CTBI considers a loan in default when it is 90 days or more past due or transferred to nonaccrual. (in thousands) Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016 Number of Loans Recorded Balance Number of Loans Recorded Balance Commercial: Commercial secured by real estate 1 $ 1,446 2 $ 1,956 Commercial other 1 14 2 372 Total defaulted restructured loans 2 $ 1,460 4 $ 2,328 (in thousands) Three Months Ended September 30, 2015 Nine Months Ended September 30, 2015 Number of Loans Recorded Balance Number of Loans Recorded Balance Commercial: Commercial secured by real estate 2 $ 31 4 $ 390 Residential: Real estate construction 0 0 1 290 Total defaulted restructured loans 2 $ 31 5 $ 680

Allowance for Loan and Lease Lo

Allowance for Loan and Lease Losses	9 Months Ended
	Sep. 30, 2016
Allowance for Loan and Lease Losses [Abstract]
Allowance for Loan and Lease Losses	Note 5 – Allowance for Loan and Lease Losses The following tables present the balance in the allowance for loan and lease losses (“ALLL”) and the recorded investment in loans based on portfolio segment and impairment method as of September 30, 2016, December 31, 2015 and September 30, 2015: Three Months Ended September 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 1,437 $ 14,438 $ 94 $ 4,430 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 35,697 Provision charged to expense 54 585 (28 ) 185 8 330 3 170 884 2,191 Losses charged off (79 ) (319 ) 0 (622 ) (61 ) (366 ) 0 (204 ) (1,311 ) (2,962 ) Recoveries 18 78 0 92 4 8 2 111 562 875 Ending balance $ 1,430 $ 14,782 $ 66 $ 4,085 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 35,801 Ending balance: Individually evaluated for impairment $ 212 $ 747 $ 0 $ 190 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,149 Collectively evaluated for impairment $ 1,218 $ 14,035 $ 66 $ 3,895 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 34,652 Loans Ending balance: Individually evaluated for impairment $ 5,938 $ 35,848 $ 0 $ 11,770 $ 0 $ 1,489 $ 0 $ 0 $ 0 $ 55,045 Collectively evaluated for impairment $ 62,337 $ 1,047,792 $ 6,242 $ 343,214 $ 55,412 $ 704,539 $ 89,467 $ 131,815 $ 435,436 $ 2,876,254 Nine Months Ended September 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Provision charged to expense (701 ) 1,726 (13 ) 1,156 144 440 (1 ) 669 2,409 5,829 Losses charged off (94 ) (1,505 ) 0 (1,667 ) (192 ) (849 ) (21 ) (893 ) (3,508 ) (8,729 ) Recoveries 26 127 0 371 7 75 7 341 1,653 2,607 Ending balance $ 1,430 $ 14,782 $ 66 $ 4,085 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 35,801 Ending balance: Individually evaluated for impairment $ 212 $ 747 $ 0 $ 190 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,149 Collectively evaluated for impairment $ 1,218 $ 14,035 $ 66 $ 3,895 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 34,652 Loans Ending balance: Individually evaluated for impairment $ 5,938 $ 35,848 $ 0 $ 11,770 $ 0 $ 1,489 $ 0 $ 0 $ 0 $ 55,045 Collectively evaluated for impairment $ 62,337 $ 1,047,792 $ 6,242 $ 343,214 $ 55,412 $ 704,539 $ 89,467 $ 131,815 $ 435,436 $ 2,876,254 Three Months Ended September 30, 2015 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,622 $ 13,022 $ 113 $ 4,414 $ 570 $ 6,965 $ 867 $ 1,541 $ 5,076 $ 35,190 Provision charged to expense 151 293 (9 ) 153 61 564 (38 ) 382 963 2,520 Losses charged off 0 (364 ) 0 (431 ) (20 ) (647 ) 0 (436 ) (1,001 ) (2,899 ) Recoveries 3 2 0 149 0 52 41 113 369 729 Ending balance $ 2,776 $ 12,953 $ 104 $ 4,285 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 35,540 Ending balance: Individually evaluated for impairment $ 719 $ 317 $ 0 $ 312 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,348 Collectively evaluated for impairment $ 2,057 $ 12,636 $ 104 $ 3,973 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 34,192 Loans Ending balance: Individually evaluated for impairment $ 8,080 $ 31,153 $ 0 $ 7,917 $ 0 $ 1,189 $ 0 $ 0 $ 0 $ 48,339 Collectively evaluated for impairment $ 98,775 $ 966,501 $ 9,146 $ 338,401 $ 62,226 $ 704,998 $ 88,624 $ 125,847 $ 377,603 $ 2,772,121 Nine Months Ended September 30, 2015 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,896 $ 13,618 $ 119 $ 4,263 $ 534 $ 6,094 $ 756 $ 1,574 $ 4,593 $ 34,447 Provision charged to expense (127 ) 577 (15 ) 1,054 184 2,023 128 804 2,112 6,740 Losses charged off (2 ) (1,290 ) 0 (1,495 ) (110 ) (1,260 ) (67 ) (1,101 ) (2,494 ) (7,819 ) Recoveries 9 48 0 463 3 77 53 323 1,196 2,172 Ending balance $ 2,776 $ 12,953 $ 104 $ 4,285 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 35,540 Ending balance: Individually evaluated for impairment $ 719 $ 317 $ 0 $ 312 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,348 Collectively evaluated for impairment $ 2,057 $ 12,636 $ 104 $ 3,973 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 34,192 Loans Ending balance: Individually evaluated for impairment $ 8,080 $ 31,153 $ 0 $ 7,917 $ 0 $ 1,189 $ 0 $ 0 $ 0 $ 48,339 Collectively evaluated for impairment $ 98,775 $ 966,501 $ 9,146 $ 338,401 $ 62,226 $ 704,998 $ 88,624 $ 125,847 $ 377,603 $ 2,772,121 December 31, 2015 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,896 $ 13,618 $ 119 $ 4,263 $ 534 $ 6,094 $ 756 $ 1,574 $ 4,593 $ 34,447 Provision charged to expense (707 ) 2,135 (40 ) 1,338 147 1,888 158 891 2,840 8,650 Losses charged off (3 ) (1,379 ) 0 (1,961 ) (135 ) (1,421 ) (129 ) (1,306 ) (3,536 ) (9,870 ) Recoveries 13 60 0 585 4 117 54 435 1,599 2,867 Ending balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Ending balance: Individually evaluated for impairment $ 831 $ 1,227 $ 0 $ 403 $ 0 $ 0 $ 0 $ 0 $ 0 $ 2,461 Collectively evaluated for impairment $ 1,368 $ 13,207 $ 79 $ 3,822 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 33,633 Loans Ending balance: Individually evaluated for impairment $ 6,263 $ 33,421 $ 0 $ 8,460 $ 0 $ 1,744 $ 0 $ 0 $ 0 $ 49,888 Collectively evaluated for impairment $ 71,757 $ 1,019,498 $ 8,514 $ 350,438 $ 61,750 $ 706,130 $ 89,450 $ 126,406 $ 390,130 $ 2,824,073

Other Real Estate Owned

Other Real Estate Owned	9 Months Ended
	Sep. 30, 2016
Other Real Estate Owned [Abstract]
Other Real Estate Owned	Note 6 – Other Real Estate Owned Activity for other real estate owned was as follows: Three Months Ended Nine Months Ended September 30 September 30 (in thousands) 2016 2015 2016 2015 Beginning balance of other real estate owned $ 37,740 $ 36,698 $ 40,674 $ 36,776 New assets acquired 1,008 3,725 4,300 9,986 Capitalized costs 0 0 0 85 Fair value adjustments (408 ) (784 ) (632 ) (1,146 ) Sale of assets (675 ) (4,985 ) (6,677 ) (11,047 ) Ending balance of other real estate owned $ 37,665 $ 34,654 $ 37,665 $ 34,654 Carrying costs and fair value adjustments associated with foreclosed properties for the three months ended September 30, 2016 and 2015 were $0.9 million and $1.3 million, respectively. Carrying costs and fair value adjustments associated with foreclosed properties for the nine months ended September 30, 2016 and 2015 were $1.9 million and $2.5 million. The major classifications of foreclosed properties are shown in the following table: (in thousands) September 30 2016 December 31 2015 1-4 family $ 6,793 $ 7,493 Agricultural/farmland 93 116 Construction/land development/other 21,372 22,570 Multifamily 270 833 Non-farm/non-residential 9,137 9,662 Total foreclosed properties $ 37,665 $ 40,674

Repurchase Agreements

Repurchase Agreements	9 Months Ended
	Sep. 30, 2016
Repurchase Agreements [Abstract]
Repurchase Agreements	Note 7 – Repurchase Agreements We utilize securities sold under agreements to repurchase to facilitate the needs of our customers and provide additional funding to our balance sheet. Repurchase agreements are transactions whereby we offer to sell to a counterparty an undivided interest in an eligible security at an agreed upon purchase price, and which obligates CTBI to repurchase the security on an agreed upon date at an agreed upon repurchase price plus interest at an agreed upon rate. Securities sold under agreements to repurchase are recorded at the amount of cash received in connection with the transaction and are reflected in the accompanying consolidated balance sheets. We monitor collateral levels on a continuous basis and maintain records of each transaction specifically describing the applicable security and the counterparty’s fractional interest in that security, and we segregate the security from its general assets in accordance with regulations governing custodial holdings of securities. The primary risk with our repurchase agreements is market risk associated with the securities securing the transactions, as we may be required to provide additional collateral based on fair value changes of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with our safekeeping agents. The carrying value of investment securities available-for-sale pledged as collateral under repurchase agreements totaled $302.6 million and $288.1 million at September 30, 2016 and December 31, 2015, respectively. The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the accompanying consolidated balance sheets as of September 30, 2016 and December 31, 2015 is presented in the following tables: September 30, 2016 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 21,892 $ 30,072 $ 261 $ 52,930 $ 105,155 State and political subdivisions 56,895 5,008 2,255 5,955 70,113 U.S. government sponsored agency mortgage-backed securities 27,992 28,920 204 29,911 87,027 Total $ 106,779 $ 64,000 $ 2,720 $ 88,796 $ 262,295 December 31, 2015 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 19,184 $ 0 $ 10,401 $ 48,695 $ 78,280 State and political subdivisions 58,676 494 1,656 9,159 69,985 U.S. government sponsored agency mortgage-backed securities 27,810 6 12,278 62,866 102,960 Total $ 105,670 $ 500 $ 24,335 $ 120,720 $ 251,225

Fair Market Value of Financial

Fair Market Value of Financial Assets and Liabilities	9 Months Ended
	Sep. 30, 2016
Fair Market Value of Financial Assets and Liabilities [Abstract]
Fair Market Value of Financial Assets and Liabilities	Note 8 – Fair Market Value of Financial Assets and Liabilities Fair Value Measurements ASC 820, Fair Value Measurements Level 1 Inputs – Quoted prices in active markets for identical assets or liabilities. Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals. Level 3 Inputs – Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. Recurring Measurements The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a recurring basis as of September 30, 2016 and December 31, 2015 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at September 30, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 245,111 $ 44,981 $ 200,130 $ 0 State and political subdivisions 133,175 0 133,175 0 U.S. government sponsored agenc y mortgage-backed securities 227,771 0 227,771 0 CRA investment funds 25,144 25,144 0 0 Mortgage servicing rights 2,964 0 0 2,964 Fair Value Measurements at December 31, 2015 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 239,394 $ 44,702 $ 194,692 $ 0 State and political subdivisions 129,215 0 129,215 0 U.S. government sponsored agenc y mortgage-backed securities 201,576 0 201,576 0 CRA investment funds 24,751 24,751 0 0 Mortgage servicing rights 3,236 0 0 3,236 Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a recurring basis and recognized in the accompanying balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. These valuation methodologies were applied to all of CTBI’s financial assets carried at fair value. CTBI had no liabilities measured and recorded at fair value as of September 30, 2016 and December 31, 2015. There have been no significant changes in the valuation techniques during the quarter or nine months ended September 30, 2016. For assets classified within Level 3 of the fair value hierarchy, the process used to develop the reported fair value is described below. Available-for-Sale Securities Securities classified as available-for-sale are reported at fair value on a recurring basis. U.S. Treasury and government agencies and CTBI’s CRA investment funds are classified as Level 1 of the valuation hierarchy where quoted market prices are available in the active market on which the individual securities are traded. If quoted market prices are not available, CTBI obtains fair value measurements from an independent pricing service, such as Interactive Data, which utilizes pricing models to determine fair value measurement. CTBI reviews the pricing quarterly to verify the reasonableness of the 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 factors. U.S. Treasury and government agencies, state and political subdivisions, and U.S. government sponsored agency mortgage-backed securities are classified as Level 2 inputs. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. Fair value determinations for Level 3 measurements are estimated on a quarterly basis where assumptions used are reviewed to ensure the estimated fair value complies with accounting standards generally accepted in the United States. As of September 30, 2016 and December 31, 2015, CTBI did not own any securities valued using Level 3 inputs. Mortgage Servicing Rights Mortgage servicing rights do not trade in an active, open market with readily observable prices. CTBI reports mortgage servicing rights at fair value on a recurring basis with subsequent remeasurement of MSRs based on change in fair value. In determining fair value, CTBI utilizes the expertise of an independent third party. Accordingly, fair value is determined by the independent third party by utilizing assumptions about factors such as mortgage interest rates, discount rates, mortgage loan prepayment speeds, market trends and industry demand. Due to the nature of the valuation inputs, mortgage servicing rights are classified within Level 3 of the hierarchy. Fair value determinations for Level 3 measurements of mortgage servicing rights are tested for impairment on a quarterly basis where assumptions used are reviewed to ensure the estimated fair value complies with accounting standards generally accepted in the United States. See the table below for inputs and valuation techniques used for Level 3 mortgage servicing rights. Transfers between Levels There were no transfers between Levels 1, 2, and 3 as of September 30, 2016. Level 3 Reconciliation Following is a reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying balance sheet using significant unobservable (Level 3) inputs for the three and nine months ended September 30, 2016 and 2015: Mortgage Servicing Rights Three Months Ended Nine Months Ended September 30 September 30 (in thousands) 2016 2015 2016 2015 Beginning balance $ 2,797 $ 3,235 $ 3,236 $ 2,968 Total recognized gains (losses) Included in net income 118 (228 ) (422 ) (37 ) Issues 167 146 388 443 Settlements (118 ) (123 ) (238 ) (344 ) Ending balance $ 2,964 $ 3,030 $ 2,964 $ 3,030 Total gains (losses) for the period included in net income attributable to the change in unrealized gains or losses related to assets still held at the reporting date $ 118 $ (228 ) $ (422 ) $ (37 ) Realized and unrealized gains and losses for items reflected in the tables above are included in net income in the consolidated statements of income as follows: Noninterest Income Three Months Ended Nine Months Ended September 30 September 30 (in thousands) 2016 2015 2016 2015 Total gains (losses) $ 0 $ (351 ) $ (660 ) $ (381 ) Nonrecurring Measurements The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a nonrecurring basis as of September 30, 2016 and December 31, 2015 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at September 30, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 4,824 $ 0 $ 0 $ 4,824 Other real estate/assets owned 2,687 0 0 2,687 Fair Value Measurements at December 31, 2015 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 3,192 $ 0 $ 0 $ 3,192 Other real estate/assets owned 6,798 0 0 6,798 Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a nonrecurring basis and recognized in the accompanying balance sheet, as well as the general classification of such assets pursuant to the valuation hierarchy. For assets classified within Level 3 of the fair value hierarchy, the process used to develop the reported fair value is described below. Impaired Loans (Collateral Dependent) The estimated fair value of collateral-dependent impaired loans is based on the appraised fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy. CTBI considers the appraisal or evaluation as the starting point for determining fair value and then considers other factors and events in the environment that may affect the fair value. Appraisals of the collateral underlying collateral-dependent loans are obtained when the loan is determined to be collateral-dependent and subsequently as deemed necessary by the Chief Credit Officer. Appraisals are reviewed for accuracy and consistency by the Chief Credit Officer. Appraisers are selected from the list of approved appraisers maintained by management. The appraised values are reduced by discounts to consider lack of marketability and estimated cost to sell if repayment or satisfaction of the loan is dependent on the sale of the collateral. These discounts and estimates are developed by the Chief Credit Officer by comparison to historical results. Loans considered impaired under ASC 310-35, Impairment of a Loan, Other Real Estate Owned In accordance with the provisions of ASC 360, Property, Plant, and Equipment, Our policy for determining the frequency of periodic reviews is based upon consideration of the specific properties and the known or perceived market fluctuations in a particular market and is typically between 12 and 18 months but generally not more than 24 months. Appraisers are selected from the list of approved appraisers maintained by management. Unobservable (Level 3) Inputs The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements at September 30, 2016 and December 31, 2015. (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at September 30, 2016 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 2,964 Discount cash flows, computer pricing model Constant prepayment rate 6.1% - 26.2% (12.1%) Probability of default 0.0% - 100.0% (2.6%) Discount rate 10.0% - 11.0% (10.1%) Impaired loans (collateral-dependent) $ 4,824 Market comparable properties Marketability discount 0.0% - 82.5% (25.7%) Other real estate/assets owned $ 2,687 Market comparable properties Comparability adjustments 10.0% - 100.0% (18.1%) (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at December 31, 2015 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 3,236 Discount cash flows, computer pricing model Constant prepayment rate 6.1% - 22.4% (10.0%) Probability of default 0.0% - 100.0% (2.6%) Discount rate 10.0% - 11.5% (10.1%) Impaired loans (collateral-dependent) $ 3,192 Market comparable properties Marketability discount 0.0% - 76.7% (26.8%) Other real estate/assets owned $ 6,798 Market comparable properties Comparability adjustments 5.0% - 51.8% (11.7%) Sensitivity of Significant Unobservable Inputs The following is a discussion of the sensitivity of significant unobservable inputs, the interrelationships between those inputs and other unobservable inputs used in recurring fair value measurement and of how those inputs might magnify or mitigate the effect of changes in the unobservable inputs on the fair value measurement. Mortgage Servicing Rights Market value for mortgage servicing rights is derived based on unobservable inputs, such as prepayment speeds of the underlying loans generated using the Andrew Davidson Prepayment Model, FHLMC/FNMA guidelines, the weighted-average life of the loan, the discount rate, the weighted average coupon, and the weighted average default rate. Significant increases (decreases) in either of those inputs in isolation would result in a significantly lower (higher) fair value measurement. Generally, a change in the assumption used for prepayment speeds is accompanied by a directionally opposite change in the assumption for interest rates. Fair Value of Financial Instruments The following table presents estimated fair value of CTBI’s financial instruments as of September 30, 2016 and indicates the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at September 30, 2016 Using (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 121,178 $ 121,178 $ 0 $ 0 Certificates of deposit in other banks 980 0 983 0 Securities available-for-sale 631,201 70,125 561,076 0 Securities held-to-maturity 1,181 0 1,182 0 Loans held for sale 2,075 2,119 0 0 Loans, net 2,895,498 0 0 2,897,616 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 11,912 0 11,912 0 Mortgage servicing rights 2,964 0 0 2,964 Financial liabilities: Deposits $ 3,053,985 $ 763,187 $ 2,299,370 $ 0 Repurchase agreements 262,295 0 0 262,208 Federal funds purchased 6,798 0 6,798 0 Advances from Federal Home Loan Bank 971 0 1,044 0 Long-term debt 61,341 0 0 49,073 Accrued interest payable 2,245 0 2,245 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0 The following table presents estimated fair value of CTBI’s financial instruments as of December 31, 2015 and indicates the level within the fair value hierarchy of the valuation techniques. (in thousands) Fair Value Measurements at December 31, 2015 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 187,611 $ 187,611 $ 0 $ 0 Certificates of deposit in other banks 3,832 0 3,836 0 Securities available-for-sale 594,936 69,453 525,483 0 Securities held-to-maturity 1,661 0 1,651 0 Loans held for sale 1,172 1,196 0 0 Loans, net 2,837,867 0 0 2,833,267 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 12,194 0 12,194 0 Mortgage servicing rights 3,236 0 0 3,236 Financial liabilities: Deposits $ 2,980,782 $ 749,975 $ 2,208,120 $ 0 Repurchase agreements 251,225 0 0 250,873 Federal funds purchased 3,596 0 3,596 0 Advances from Federal Home Loan Bank 101,056 0 100,905 0 Long-term debt 61,341 0 0 49,073 Accrued interest payable 1,071 0 1,071 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0 The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: Cash and cash equivalents – The carrying amount approximates fair value. Certificates of deposit in other banks – Fair values are based on quoted market prices or dealer quotes for similar instruments. Securities held-to-maturity – Fair values are based on quoted market prices, if available. If a quoted price is not available, fair value is estimated using quoted prices for similar securities. The fair value estimate is provided to management from a third party using modeling assumptions specific to each type of security that are reviewed and approved by management. Quarterly sampling of fair values provided by additional third parties supplement the fair value review process. Loans held for sale – The fair value is predetermined at origination based on sale price. Loans (net of the allowance for loan and lease losses) – The fair value of fixed rate loans and variable rate mortgage loans is estimated by discounting the future cash flows using current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. For other variable rate loans, the carrying amount approximates fair value. Federal Home Loan Bank stock – The carrying value of Federal Home Loan Bank stock approximates fair value based on the redemption provisions of the Federal Home Loan Bank. Federal Reserve Bank stock – The carrying value of Federal Reserve Bank stock approximates fair value based on the redemption provisions of the Federal Reserve Bank. Accrued interest receivable – The carrying amount approximates fair value. Deposits – The fair value of fixed maturity time deposits is estimated by discounting the future cash flows using the rates currently offered for deposits of similar remaining maturities. For deposits including demand deposits, savings accounts, NOW accounts, and certain money market accounts, the carrying value approximates fair value. Repurchase agreements – The fair value is estimated by discounting future cash flows using current rates. Federal funds purchased – The carrying amount approximates fair value. Advances from Federal Home Loan Bank – The fair value of these fixed-maturity advances is estimated by discounting future cash flows using rates currently offered for advances of similar remaining maturities. Long-term debt – The fair value is estimated by discounting future cash flows using current rates. Accrued interest payable – The carrying amount approximates fair value. Commitments to originate loans, forward sale commitments, letters of credit, and lines of credit – The fair value of commitments to originate loans is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of forward sale commitments is estimated based on current market prices for loans of similar terms and credit quality. The fair values of letters of credit and lines of credit are based on fees currently charged for similar agreements or on the estimated cost to terminate or otherwise settle the obligations with the counterparties at the reporting date. The fair values of these commitments are not material.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Note 9 – Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended September 30 September 30 (in thousands except per share data) 2016 2015 2016 2015 Numerator: Net income $ 12,312 $ 11,222 $ 35,480 $ 34,562 Denominator: Basic earnings per share: Weighted average shares 17,554 17,440 17,532 17,420 Diluted earnings per share: Effect of dilutive stock options and restricted stock grants 15 51 16 52 Adjusted weighted average shares 17,569 17,491 17,548 17,472 Earnings per share: Basic earnings per share $ 0.70 $ 0.64 $ 2.02 $ 1.98 Diluted earnings per share 0.70 0.64 2.02 1.98 There were no options to purchase common shares that were excluded from the diluted calculations above for the three months ended September 30, 2016, but options to purchase 15,730 common shares at a weighted average price of $35.409 were excluded for the nine months ended September 30, 2016, because the exercise prices on the options were greater than the average market price for the period. In addition to in-the-money stock options, unvested restricted stock grants were also used in the calculation of diluted earnings per share based on the treasury method. There were no options to purchase common shares that were excluded from the diluted calculations above for the three and nine months ended September 30, 2015.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2016
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	Note 10 – Accumulated Other Comprehensive Income Unrealized gains (losses) on AFS securities Amounts reclassified from accumulated other comprehensive income (AOCI) and the affected line items in the statements of income during the three and nine months ended September 30, 2016 and 2015 were: Amounts Reclassified from AOCI (in thousands) Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 Affected line item in the statements of income Securities gains $ 458 $ 12 $ 522 $ 142 Tax expense 160 4 183 50 Total reclassifications out of AOCI $ 298 $ 8 $ 339 $ 92

Summary of Significant Accoun16

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2016
Summary of Significant Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation –
Reclassifications	Reclassifications –
New Accounting Standards	New Accounting Standards Ø Elimination of Extraordinary Reporting Income Statement – Extraordinary and Unusual Items (Subtopic 225-20): Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items. The amendments in this ASU were effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Ø Intangibles – Goodwill and Other – Internal-Use Software – In April 2015, the FASB issued ASU No. 2015-05, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) . The amendments in this update provided guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance did not change GAAP for a customer’s accounting for service contracts. In addition, the guidance in this update supersedes paragraph 350-40-25-16. Consequently, all software licenses within the scope of Subtopic 350-40 are accounted for consistent with other licenses of intangible assets. For public business entities, the amendments were effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. Ø Business Combinations: Simplifying the Accounting Measurement-Period Adjustments Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustment Topic 805 requires that an acquirer retrospectively adjust provisional amounts recognized in a business combination, during the measurement period. To simplify the accounting for adjustments made to provisional amounts, the amendments in the Update require that the acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amount is determined. The acquirer is required to also record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. In addition, an entity is required to present separately on the face of the income statement or disclose in the notes to the financial statements the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. Ø Income Taxes Income Taxes (Topic 740) Ø Financial Instruments – Overall Financial Instruments – Overall (Subtopic 825-10) Ø Leases – In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) . · A lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and · A right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers The new lease guidance simplified the accounting for sale and leaseback transactions primarily because lessees must recognize lease assets and lease liabilities. Lessees will no longer be provided with a source of off-balance sheet financing. Public business entities should apply the amendments in ASU 2016-02 for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (i.e., January 1, 2019, for a calendar year entity). Early application is permitted upon issuance. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. We are currently evaluating the impact of ASU 2016-02 on our consolidated financial statements. Ø Investments—Equity Method and Joint Ventures: Simplifying the Transition to the Equity Method of Accounting FASB issued Accounting Standards Update (ASU) No. 2016-07, Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting. The amendments affect all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. The amendments eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The amendments are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. Earlier application is permitted. Ø Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting FASB issued Accounting Standards Update (ASU) No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments are intended to improve the accounting for employee share-based payments and affect all organizations that issue share-based payment awards to their employees. Several aspects of the accounting for share-based payment award transactions are simplified, including: (a) (b) (c) For public companies, the amendments are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any organization in any interim or annual period. Ø Revenue from Contracts with Customers Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing. (a) (b) The effective date and transition requirements for the amendments are the same as the effective date and transition requirements in Topic 606. Public entities should apply the amendments for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein (i.e., January 1, 2018, for a calendar year entity). Early application for public entities is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The effective date for nonpublic entities is deferred by one year. Management does not expect this ASU to have a material impact on CTBI’s consolidated financial statements. Ø Revenue Recognition Narrow-Scope Amendments and Practical Expedients Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients. do not change the core revenue recognition principle in Topic 606. The amendments provide clarifying guidance in certain narrow areas and add some practical expedients. These amendments are effective at the same date that Topic 606 is effective. Topic 606 is effective for public entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein (i.e., January 1, 2018, for a calendar year entity). Ø Accounting for Credit Losses Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU is intended to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The ASU requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. Organizations will continue to use judgment to determine which loss estimation method is appropriate for their circumstances. The ASU requires enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. These disclosures include qualitative and quantitative requirements that provide additional information about the amounts recorded in the financial statements. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The ASU is effective for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019 (i.e., January 1, 2020, for calendar year entities). Early application will be permitted for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Ø Statement of Cash Flows Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. Stakeholders indicated that there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other Topics. This ASU addresses the following eight specific cash flow issues: Debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (COLIs) (including bank-owned life insurance policies (BOLIs)); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. The amendments in this Update apply to all entities, including both business entities and not-for-profit entities that are required to present a statement of cash flows under Topic 230. This Update is the final version of Proposed Accounting Standards Update EITF-15F— Statement of Cash Flows—Classification of Certain Cash Receipts and Cash Payments (Topic 230) , which has been deleted. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The amendments in this Update should be applied using a retrospective transition method to each period presented. If it is impracticable to apply the amendments retrospectively for some of the issues, the amendments for those issues would be applied prospectively as of the earliest date practicable. We do not expect
Critical Accounting Policies and Estimates	Critical Accounting Policies and Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires the appropriate application of certain accounting policies, many of which require us to make estimates and assumptions about future events and their impact on amounts reported in our consolidated financial statements and related notes. Since future events and their impact cannot be determined with certainty, the actual results will inevitably differ from our estimates. Such differences could be material to the consolidated financial statements. We believe the application of accounting policies and the estimates required therein are reasonable. These accounting policies and estimates are constantly reevaluated, and adjustments are made when facts and circumstances dictate a change. Historically, we have found our application of accounting policies to be appropriate, and actual results have not differed materially from those determined using necessary estimates. We have identified the following critical accounting policies:
Investments	Investments Investment Securities a. Trading securities . . b. Available-for-sale securities. Investments not classified as trading securities (nor as held-to-maturity securities) shall be classified as available-for-sale securities. We do not have any securities that are classified as trading securities. Available-for-sale securities are reported at fair value, with unrealized gains and losses included as a separate component of shareholders’ equity, net of tax. If declines in fair value are other than temporary, the carrying value of the securities is written down to fair value as a realized loss with a charge to income for the portion attributable to credit losses and a charge to other comprehensive income for the portion that is not credit related. Gains or losses on disposition of securities are computed by specific identification for all securities except for shares in mutual funds, which are computed by average cost. Interest and dividend income, adjusted by amortization of purchase premium or discount, is included in earnings. When the fair value of a security is below its amortized cost, and depending on the length of time the condition exists and the extent the fair market value is below amortized cost, additional analysis is performed to determine whether an other than temporary impairment condition exists. Available-for-sale and held-to-maturity securities are analyzed quarterly for possible other than temporary impairment. The analysis considers (i) whether we have the intent to sell our securities prior to recovery and/or maturity and (ii) whether it is more likely than not that we will not have to sell our securities prior to recovery and/or maturity. Often, the information available to conduct these assessments is limited and rapidly changing, making estimates of fair value subject to judgment. If actual information or conditions are different than estimated, the extent of the impairment of the security may be different than previously estimated, which could have a material effect on the CTBI’s results of operations and financial condition.
Loans	Loans A restructuring of a debt constitutes a troubled debt restructuring if the creditor for economic or legal reasons related to the debtor’s financial difficulties grants a concession to the debtor that it would not otherwise consider. Loan origination and commitment fees and certain direct loan origination costs are deferred and the net amount amortized over the estimated life of the related loans, leases, or commitments as a yield adjustment.
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses We utilize an internal risk grading system for commercial credits. Those larger commercial credits that exhibit probable or observed credit weaknesses are subject to individual review. The borrower’s cash flow, adequacy of collateral coverage, and other options available to CTBI, including legal remedies, are evaluated. The review of individual loans includes those loans that are impaired as defined by ASC 310-10-35, Impairment of a Loan A loan is considered impaired when, based on current information and events, it is probable that CTBI will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Homogenous loans, such as consumer installment, residential mortgages, and home equity lines are not individually risk graded. The associated ALLL for these loans is measured under ASC 450, Contingencies When any secured commercial loan is considered uncollectable, whether past due or not, a current assessment of the value of the underlying collateral is made. If the balance of the loan exceeds the fair value of the collateral, the loan is placed on nonaccrual and the loan is charged down to the value of the collateral less estimated cost to sell or a specific reserve equal to the difference between book value of the loan and the fair value assigned to the collateral is created until such time as the loan is foreclosed. When the foreclosed collateral has been legally assigned to CTBI, a charge off is taken, if necessary, in order that the remaining balance reflects the fair value estimated less costs to sell of the collateral then transferred to other real estate owned or other repossessed assets. When any unsecured commercial loan is considered uncollectable the loan is charged off no later than at 90 days past due. All closed-end consumer loans (excluding conventional 1-4 family residential loans and installment and revolving loans secured by real estate) are charged off no later than 120 days (5 monthly payments) delinquent. If a loan is considered uncollectable, it is charged off earlier than 120 days delinquent. For conventional 1-4 family residential loans and installment and revolving loans secured by real estate, when a loan is 90 days past due, a current assessment of the value of the real estate is made. If the balance of the loan exceeds the fair value of the property, the loan is placed on nonaccrual. Foreclosure proceedings are normally initiated after 120 days. When the foreclosed property has been legally assigned to CTBI, the fair value less estimated costs to sell is transferred to other real estate owned and the remaining balance is taken as a charge-off. Historical loss rates for loans are adjusted for significant factors that, in management’s judgment, reflect the impact of any current conditions on loss recognition. We use twelve rolling quarters for our historical loss rate analysis. Factors that we consider include delinquency trends, current economic conditions and trends, strength of supervision and administration of the loan portfolio, levels of underperforming loans, level of recoveries to prior year’s charge-offs, trends in loan losses, industry concentrations and their relative strengths, amount of unsecured loans, and underwriting exceptions. Management continually reevaluates the other subjective factors included in its ALLL analysis.
Other Real Estate Owned	Other Real Estate Owned All revenues and expenses related to the carrying of other real estate owned are recognized through the income statement.
Income Taxes	Income Taxes

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2016
Stock-Based Compensation [Abstract]
Schedule of Weighted Average Assumptions Used for Estimating the Grant-Date Fair Value of Each Option Grant	The fair value of stock options granted during the nine months ended September 30, 2016 and 2015 were established at the date of grant using a Black-Scholes option pricing model with the weighted average assumptions as follows: Nine Months Ended September 30 2016 2015 Expected dividend yield 3.72 % 3.72 % Risk-free interest rate 1.45 % 1.54 % Expected volatility 30.77 % 30.77 % Expected term (in years) 7.0 7.0 Weighted average fair value of options $ 6.80 $ 6.60

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2016
Securities [Abstract]
Amortized Cost and Fair Value of Securities	The amortized cost and fair value of securities at September 30, 2016 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 243,980 $ 1,311 $ (180 ) $ 245,111 State and political subdivisions 128,644 4,646 (115 ) 133,175 U.S. government sponsored agency mortgage-backed securities 226,794 1,820 (843 ) 227,771 Total debt securities 599,418 7,777 (1,138 ) 606,057 CRA investment funds 25,000 293 (149 ) 25,144 Total available-for-sale securities $ 624,418 $ 8,070 $ (1,287 ) $ 631,201 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value State and political subdivisions $ 1,181 $ 1 $ 0 $ 1,182 Total held-to-maturity securities $ 1,181 $ 1 $ 0 $ 1,182 The amortized cost and fair value of securities at December 31, 2015 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 240,434 $ 311 $ (1,351 ) $ 239,394 State and political subdivisions 125,665 3,707 (157 ) 129,215 U.S. government sponsored agency mortgage-backed securities 202,282 1,564 (2,270 ) 201,576 Total debt securities 568,381 5,582 (3,778 ) 570,185 CRA investment funds 25,000 132 (381 ) 24,751 Total available-for-sale securities $ 593,381 $ 5,714 $ (4,159 ) $ 594,936 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 480 $ 0 $ (12 ) $ 468 State and political subdivisions 1,181 2 0 1,183 Total held-to-maturity securities $ 1,661 $ 2 $ (12 ) $ 1,651
Amortized Cost and Fair Value of Securities by Contractual Maturity	The amortized cost and fair value of securities at September 30, 2016 by contractual maturity are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Available-for-Sale Held-to-Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 68,479 $ 68,576 $ 0 $ 0 Due after one through five years 154,511 156,366 1,181 1,182 Due after five through ten years 63,044 65,336 0 0 Due after ten years 86,590 88,008 0 0 U.S. government sponsored agency mortgage-backed securities 226,794 227,771 0 0 Total debt securities 599,418 606,057 1,181 1,182 CRA investment funds 25,000 25,144 0 0 Total securities $ 624,418 $ 631,201 $ 1,181 $ 1,182
Available for Sale Securities and Held-to-Maturity Securities, Continuous Unrealized Loss Position	The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of September 30, 2016 that are not deemed to be other-than-temporarily impaired. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 58,160 $ (155 ) $ 58,005 State and political subdivisions 10,697 (105 ) 10,592 U.S. government sponsored agency mortgage-backed securities 109,623 (308 ) 109,315 Total debt securities 178,480 (568 ) 177,912 CRA investment funds 10,000 (27 ) 9,973 Total <12 months temporarily impaired AFS securities 188,480 (595 ) 187,885 12 Months or More U.S. Treasury and government agencies 1,927 (25 ) 1,902 State and political subdivisions 753 (10 ) 743 U.S. government sponsored agency mortgage-backed securities 32,712 (535 ) 32,177 Total debt securities 35,392 (570 ) 34,822 CRA investment funds 5,000 (122 ) 4,878 Total ≥12 months temporarily impaired AFS securities 40,392 (692 ) 39,700 Total U.S. Treasury and government agencies 60,087 (180 ) 59,907 State and political subdivisions 11,450 (115 ) 11,335 U.S. government sponsored agency mortgage-backed securities 142,335 (843 ) 141,492 Total debt securities 213,872 (1,138 ) 212,734 CRA investment funds 15,000 (149 ) 14,851 Total temporarily impaired AFS securities $ 228,872 $ (1,287 ) $ 227,585 The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of December 31, 2015 that are not deemed to be other-than-temporarily impaired. The analysis performed as of December 31, 2015 indicated that all impairment was considered temporary, market and interest rate driven, and not credit-related. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 142,147 $ (487 ) $ 141,660 State and political subdivisions 11,190 (106 ) 11,084 U.S. government sponsored agency mortgage-backed securities 92,009 (899 ) 91,110 Total debt securities 245,346 (1,492 ) 243,854 CRA investment funds 10,000 (183 ) 9,817 Total <12 months temporarily impaired AFS securities 255,346 (1,675 ) 253,671 12 Months or More U.S. Treasury and government agencies 54,773 (864 ) 53,909 State and political subdivisions 3,187 (51 ) 3,136 U.S. government sponsored agency mortgage-backed securities 49,908 (1,371 ) 48,537 Total debt securities 107,868 (2,286 ) 105,582 CRA investment funds 5,000 (198 ) 4,802 Total ≥12 months temporarily impaired AFS securities 112,868 (2,484 ) 110,384 Total U.S. Treasury and government agencies 196,920 (1,351 ) 195,569 State and political subdivisions 14,377 (157 ) 14,220 U.S. government sponsored agency mortgage-backed securities 141,917 (2,270 ) 139,647 Total debt securities 353,214 (3,778 ) 349,436 CRA investment funds 15,000 (381 ) 14,619 Total temporarily impaired AFS securities $ 368,214 $ (4,159 ) $ 364,055 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Losses Fair Value 12 Months or More U.S. Treasury and government agencies $ 480 $ (12 ) $ 468 Total temporarily impaired HTM securities $ 480 $ (12 ) $ 468

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2016
Loans [Abstract]
Summary of Major Classification of Loans Net of Unearned Income, Deferred Loan Origination Costs and Net Premiums on Acquired Loans	Major classifications of loans, net of unearned income, deferred loan origination costs, and net premiums on acquired loans, are summarized as follows: (in thousands) September 30 2016 December 31 2015 Commercial construction $ 68,275 $ 78,020 Commercial secured by real estate 1,083,640 1,052,919 Equipment lease financing 6,242 8,514 Commercial other 354,984 358,898 Real estate construction 55,412 61,750 Real estate mortgage 706,028 707,874 Home equity 89,467 89,450 Consumer direct 131,815 126,406 Consumer indirect 435,436 390,130 Total loans $ 2,931,299 $ 2,873,961
Nonaccrual Loans Segregated by Class of Loans	Nonaccrual loans segregated by class of loans were as follows: (in thousands) September 30 2016 December 31 2015 Commercial: Commercial construction $ 2,216 $ 3,402 Commercial secured by real estate 7,328 5,928 Commercial other 1,446 1,485 Residential: Real estate construction 11 249 Real estate mortgage 5,475 5,206 Home equity 322 183 Consumer: Consumer direct 0 110 Total nonaccrual loans $ 16,798 $ 16,563
Bank's Loan Portfolio Aging Analysis, Segregated by Class	The following tables present CTBI’s loan portfolio aging analysis, segregated by class, as of September 30, 2016 and December 31, 2015: September 30, 2016 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 41 $ 0 $ 2,215 $ 2,256 $ 66,019 $ 68,275 $ 24 Commercial secured by real estate 3,720 2,850 9,196 15,766 1,067,874 1,083,640 5,001 Equipment lease financing 0 0 0 0 6,242 6,242 0 Commercial other 1,277 236 1,283 2,796 352,188 354,984 345 Residential: Real estate construction 1,386 286 478 2,150 53,262 55,412 478 Real estate mortgage 897 5,762 8,369 15,028 691,000 706,028 4,819 Home equity 947 320 641 1,908 87,559 89,467 405 Consumer: Consumer direct 901 250 109 1,260 130,555 131,815 109 Consumer indirect 2,406 977 317 3,700 431,736 435,436 317 Total $ 11,575 $ 10,681 $ 22,608 $ 44,864 $ 2,886,435 $ 2,931,299 $ 11,498 December 31, 2015 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 36 $ 6 $ 3,431 $ 3,473 $ 74,547 $ 78,020 $ 30 Commercial secured by real estate 2,947 622 7,923 11,492 1,041,427 1,052,919 3,757 Equipment lease financing 199 0 0 199 8,315 8,514 0 Commercial other 762 121 1,476 2,359 356,539 358,898 310 Residential: Real estate construction 443 62 291 796 60,954 61,750 55 Real estate mortgage 1,128 3,888 10,907 15,923 691,951 707,874 6,925 Home equity 527 148 580 1,255 88,195 89,450 448 Consumer: Consumer direct 835 479 126 1,440 124,966 126,406 126 Consumer indirect 2,133 814 395 3,342 386,788 390,130 395 Total $ 9,010 $ 6,140 $ 25,129 $ 40,279 $ 2,833,682 $ 2,873,961 $ 12,046 *90+ and Accruing are also included in 90+ Days Past Due column.
Credit Risk Profile of the Bank's Commercial Loan Portfolio Based on Rating Category and Payment Activity, Segregated by Class of Loans	The following tables present the credit risk profile of CTBI’s commercial loan portfolio based on rating category and payment activity, segregated by class of loans, as of September 30, 2016 and December 31, 2015: (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Leases Commercial Other Total September 30, 2016 Pass $ 55,878 $ 970,069 $ 5,885 $ 304,799 $ 1,336,631 Watch 4,006 54,232 0 31,638 89,876 OAEM 2,330 27,688 357 6,675 37,050 Substandard 5,871 31,095 0 11,052 48,018 Doubtful 190 556 0 820 1,566 Total $ 68,275 $ 1,083,640 $ 6,242 $ 354,984 $ 1,513,141 December 31, 2015 Pass $ 62,978 $ 937,196 $ 8,514 $ 312,100 $ 1,320,788 Watch 4,931 71,830 0 37,670 114,431 OAEM 2,206 13,765 0 963 16,934 Substandard 6,780 29,232 0 7,072 43,084 Doubtful 1,125 896 0 1,093 3,114 Total $ 78,020 $ 1,052,919 $ 8,514 $ 358,898 $ 1,498,351
Credit Risk Profile of Residential Real Estate and Consumer Loan Portfolio Based on Performing and Nonperforming Status Segregated by Class	The following tables present the credit risk profile of the CTBI’s residential real estate and consumer loan portfolios based on performing or nonperforming status, segregated by class, as of September 30, 2016 and December 31, 2015: (in thousands) Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total September 30, 2016 Performing $ 54,923 $ 695,734 $ 88,740 $ 131,706 $ 435,119 $ 1,406,222 Nonperforming (1) 489 10,294 727 109 317 11,936 Total $ 55,412 $ 706,028 $ 89,467 $ 131,815 $ 435,436 $ 1,418,158 December 31, 2015 Performing $ 61,446 $ 695,743 $ 88,819 $ 126,170 $ 389,735 $ 1,361,913 Nonperforming (1) 304 12,131 631 236 395 13,697 Total $ 61,750 $ 707,874 $ 89,450 $ 126,406 $ 390,130 $ 1,375,610 (1) A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual.
Impaired Loans, Average Investment in Impaired Loans, and Interest Income Recognized on Impaired Loans	The following table presents impaired loans, the average investment in impaired loans, and interest income recognized on impaired loans for the periods ended September 30, 2016, December 31, 2015, and September 30, 2015: September 30, 2016 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,270 $ 4,293 $ 0 Commercial secured by real estate 32,311 33,004 0 Commercial other 11,382 13,191 0 Real estate mortgage 1,489 1,489 0 Loans with a specific valuation allowance: Commercial construction 1,668 1,670 212 Commercial secured by real estate 3,537 4,688 747 Commercial other 388 408 190 Totals: Commercial construction 5,938 5,963 212 Commercial secured by real estate 35,848 37,692 747 Commercial other 11,770 13,599 190 Real estate mortgage 1,489 1,489 0 Total $ 55,045 $ 58,743 $ 1,149 Three Months Ended Nine Months Ended September 30, 2016 September 30, 2016 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,299 $ 63 $ 4,450 $ 168 Commercial secured by real estate 32,534 390 31,795 1,164 Commercial other 11,497 153 11,564 470 Real estate mortgage 1,492 15 1,759 45 Loans with a specific valuation allowance: Commercial construction 1,798 0 2,524 0 Commercial secured by real estate 3,547 1 3,957 19 Commercial other 405 0 597 0 Totals: Commercial construction 6,097 63 6,974 168 Commercial secured by real estate 36,081 391 35,752 1,183 Commercial other 11,902 153 12,161 470 Real estate mortgage 1,492 15 1,759 45 Total $ 55,572 $ 622 $ 56,646 $ 1,866 December 31, 2015 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 2,861 $ 2,862 $ 0 $ 4,574 $ 200 Commercial secured by real estate 30,761 32,166 0 30,605 1,378 Commercial other 7,500 9,148 0 8,802 316 Real estate mortgage 1,744 1,744 0 1,179 50 Loans with a specific valuation allowance: Commercial construction 3,402 3,402 831 3,631 0 Commercial secured by real estate 2,660 2,768 1,227 2,349 7 Commercial other 960 1,153 403 836 1 Totals: Commercial construction 6,263 6,264 831 8,205 200 Commercial secured by real estate 33,421 34,934 1,227 32,954 1,385 Commercial other 8,460 10,301 403 9,638 317 Real estate mortgage 1,744 1,744 0 1,179 50 Total $ 49,888 $ 53,243 $ 2,461 $ 51,976 $ 1,952 September 30, 2015 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,669 $ 4,669 $ 0 Commercial secured by real estate 30,318 31,551 0 Commercial other 7,163 8,804 0 Real estate mortgage 1,189 1,189 0 Loans with a specific valuation allowance: Commercial construction 3,411 3,412 719 Commercial secured by real estate 835 1,075 317 Commercial other 754 935 312 Totals: Commercial construction 8,080 8,081 719 Commercial secured by real estate 31,153 32,626 317 Commercial other 7,917 9,739 312 Real estate mortgage 1,189 1,189 0 Total $ 48,339 $ 51,635 $ 1,348 Three Months Ended Nine Months Ended September 30, 2015 September 30, 2015 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,864 $ 41 $ 5,142 $ 160 Commercial secured by real estate 30,713 316 30,357 985 Commercial other 7,312 73 9,182 201 Real estate mortgage 1,183 13 1,090 37 Loans with a specific valuation allowance: Commercial construction 3,445 0 3,712 0 Commercial secured by real estate 841 6 2,244 7 Commercial other 776 1 788 1 Totals: Commercial construction 8,309 41 8,854 160 Commercial secured by real estate 31,554 322 32,601 992 Commercial other 8,088 74 9,970 202 Real estate mortgage 1,183 13 1,090 37 Total $ 49,134 $ 450 $ 52,515 $ 1,391 *Cash basis interest is substantially the same as interest income recognized.
Troubled Debt Restructuring	Presented below, segregated by class of loans, are troubled debt restructurings that occurred during the three and nine months ended September 30, 2016 and 2015 and the year ended December 31, 2015: Three Months Ended September 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial secured by real estate 2 $ 152 $ 0 $ 0 $ 152 Total troubled debt restructurings 2 $ 152 $ 0 $ 0 $ 152 Nine Months Ended September 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 5 $ 1,408 $ 0 $ 0 $ 1,408 Commercial secured by real estate 23 5,761 0 580 6,341 Commercial other 16 5,041 0 0 5,041 Residential: Real estate mortgage 1 0 0 280 280 Total troubled debt restructurings 45 $ 12,210 $ 0 $ 860 $ 13,070 Three Months Ended September 30, 2015 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial secured by real estate 5 $ 346 $ 0 $ 165 $ 511 Commercial other 1 1,139 0 0 1,139 Total troubled debt restructurings 6 $ 1,485 $ 0 $ 165 $ 1,650 Nine Months Ended September 30, 2015 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial secured by real estate 13 $ 953 $ 0 $ 165 $ 1,118 Commercial other 4 1,193 0 0 1,193 Residential: Real estate mortgage 1 0 0 290 290 Total troubled debt restructurings 18 $ 2,146 $ 0 $ 455 $ 2,601 Year Ended December 31, 2015 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 3 $ 428 $ 0 $ 0 $ 428 Commercial secured by real estate 21 4,244 0 1,760 6,004 Commercial other 7 3,847 0 0 3,847 Residential: Real estate mortgage 3 0 0 848 848 Total troubled debt restructurings 34 $ 8,519 $ 0 $ 2,608 $ 11,127
Summary of Defaulted Restructured Loans	Presented below, segregated by class of loans, are loans that were modified as troubled debt restructurings within the past twelve months which have subsequently defaulted. CTBI considers a loan in default when it is 90 days or more past due or transferred to nonaccrual. (in thousands) Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016 Number of Loans Recorded Balance Number of Loans Recorded Balance Commercial: Commercial secured by real estate 1 $ 1,446 2 $ 1,956 Commercial other 1 14 2 372 Total defaulted restructured loans 2 $ 1,460 4 $ 2,328 (in thousands) Three Months Ended September 30, 2015 Nine Months Ended September 30, 2015 Number of Loans Recorded Balance Number of Loans Recorded Balance Commercial: Commercial secured by real estate 2 $ 31 4 $ 390 Residential: Real estate construction 0 0 1 290 Total defaulted restructured loans 2 $ 31 5 $ 680

Allowance for Loan and Lease 20

Allowance for Loan and Lease Losses (Tables)	9 Months Ended
	Sep. 30, 2016
Allowance for Loan and Lease Losses [Abstract]
Activity in Allowance for Loan and Lease Losses	The following tables present the balance in the allowance for loan and lease losses (“ALLL”) and the recorded investment in loans based on portfolio segment and impairment method as of September 30, 2016, December 31, 2015 and September 30, 2015: Three Months Ended September 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 1,437 $ 14,438 $ 94 $ 4,430 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 35,697 Provision charged to expense 54 585 (28 ) 185 8 330 3 170 884 2,191 Losses charged off (79 ) (319 ) 0 (622 ) (61 ) (366 ) 0 (204 ) (1,311 ) (2,962 ) Recoveries 18 78 0 92 4 8 2 111 562 875 Ending balance $ 1,430 $ 14,782 $ 66 $ 4,085 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 35,801 Ending balance: Individually evaluated for impairment $ 212 $ 747 $ 0 $ 190 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,149 Collectively evaluated for impairment $ 1,218 $ 14,035 $ 66 $ 3,895 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 34,652 Loans Ending balance: Individually evaluated for impairment $ 5,938 $ 35,848 $ 0 $ 11,770 $ 0 $ 1,489 $ 0 $ 0 $ 0 $ 55,045 Collectively evaluated for impairment $ 62,337 $ 1,047,792 $ 6,242 $ 343,214 $ 55,412 $ 704,539 $ 89,467 $ 131,815 $ 435,436 $ 2,876,254 Nine Months Ended September 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Provision charged to expense (701 ) 1,726 (13 ) 1,156 144 440 (1 ) 669 2,409 5,829 Losses charged off (94 ) (1,505 ) 0 (1,667 ) (192 ) (849 ) (21 ) (893 ) (3,508 ) (8,729 ) Recoveries 26 127 0 371 7 75 7 341 1,653 2,607 Ending balance $ 1,430 $ 14,782 $ 66 $ 4,085 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 35,801 Ending balance: Individually evaluated for impairment $ 212 $ 747 $ 0 $ 190 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,149 Collectively evaluated for impairment $ 1,218 $ 14,035 $ 66 $ 3,895 $ 509 $ 6,344 $ 824 $ 1,711 $ 6,050 $ 34,652 Loans Ending balance: Individually evaluated for impairment $ 5,938 $ 35,848 $ 0 $ 11,770 $ 0 $ 1,489 $ 0 $ 0 $ 0 $ 55,045 Collectively evaluated for impairment $ 62,337 $ 1,047,792 $ 6,242 $ 343,214 $ 55,412 $ 704,539 $ 89,467 $ 131,815 $ 435,436 $ 2,876,254 Three Months Ended September 30, 2015 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,622 $ 13,022 $ 113 $ 4,414 $ 570 $ 6,965 $ 867 $ 1,541 $ 5,076 $ 35,190 Provision charged to expense 151 293 (9 ) 153 61 564 (38 ) 382 963 2,520 Losses charged off 0 (364 ) 0 (431 ) (20 ) (647 ) 0 (436 ) (1,001 ) (2,899 ) Recoveries 3 2 0 149 0 52 41 113 369 729 Ending balance $ 2,776 $ 12,953 $ 104 $ 4,285 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 35,540 Ending balance: Individually evaluated for impairment $ 719 $ 317 $ 0 $ 312 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,348 Collectively evaluated for impairment $ 2,057 $ 12,636 $ 104 $ 3,973 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 34,192 Loans Ending balance: Individually evaluated for impairment $ 8,080 $ 31,153 $ 0 $ 7,917 $ 0 $ 1,189 $ 0 $ 0 $ 0 $ 48,339 Collectively evaluated for impairment $ 98,775 $ 966,501 $ 9,146 $ 338,401 $ 62,226 $ 704,998 $ 88,624 $ 125,847 $ 377,603 $ 2,772,121 Nine Months Ended September 30, 2015 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,896 $ 13,618 $ 119 $ 4,263 $ 534 $ 6,094 $ 756 $ 1,574 $ 4,593 $ 34,447 Provision charged to expense (127 ) 577 (15 ) 1,054 184 2,023 128 804 2,112 6,740 Losses charged off (2 ) (1,290 ) 0 (1,495 ) (110 ) (1,260 ) (67 ) (1,101 ) (2,494 ) (7,819 ) Recoveries 9 48 0 463 3 77 53 323 1,196 2,172 Ending balance $ 2,776 $ 12,953 $ 104 $ 4,285 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 35,540 Ending balance: Individually evaluated for impairment $ 719 $ 317 $ 0 $ 312 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,348 Collectively evaluated for impairment $ 2,057 $ 12,636 $ 104 $ 3,973 $ 611 $ 6,934 $ 870 $ 1,600 $ 5,407 $ 34,192 Loans Ending balance: Individually evaluated for impairment $ 8,080 $ 31,153 $ 0 $ 7,917 $ 0 $ 1,189 $ 0 $ 0 $ 0 $ 48,339 Collectively evaluated for impairment $ 98,775 $ 966,501 $ 9,146 $ 338,401 $ 62,226 $ 704,998 $ 88,624 $ 125,847 $ 377,603 $ 2,772,121 December 31, 2015 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,896 $ 13,618 $ 119 $ 4,263 $ 534 $ 6,094 $ 756 $ 1,574 $ 4,593 $ 34,447 Provision charged to expense (707 ) 2,135 (40 ) 1,338 147 1,888 158 891 2,840 8,650 Losses charged off (3 ) (1,379 ) 0 (1,961 ) (135 ) (1,421 ) (129 ) (1,306 ) (3,536 ) (9,870 ) Recoveries 13 60 0 585 4 117 54 435 1,599 2,867 Ending balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Ending balance: Individually evaluated for impairment $ 831 $ 1,227 $ 0 $ 403 $ 0 $ 0 $ 0 $ 0 $ 0 $ 2,461 Collectively evaluated for impairment $ 1,368 $ 13,207 $ 79 $ 3,822 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 33,633 Loans Ending balance: Individually evaluated for impairment $ 6,263 $ 33,421 $ 0 $ 8,460 $ 0 $ 1,744 $ 0 $ 0 $ 0 $ 49,888 Collectively evaluated for impairment $ 71,757 $ 1,019,498 $ 8,514 $ 350,438 $ 61,750 $ 706,130 $ 89,450 $ 126,406 $ 390,130 $ 2,824,073

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2016
Other Real Estate Owned [Abstract]
Activity for Other Real Estate Owned	Activity for other real estate owned was as follows: Three Months Ended Nine Months Ended September 30 September 30 (in thousands) 2016 2015 2016 2015 Beginning balance of other real estate owned $ 37,740 $ 36,698 $ 40,674 $ 36,776 New assets acquired 1,008 3,725 4,300 9,986 Capitalized costs 0 0 0 85 Fair value adjustments (408 ) (784 ) (632 ) (1,146 ) Sale of assets (675 ) (4,985 ) (6,677 ) (11,047 ) Ending balance of other real estate owned $ 37,665 $ 34,654 $ 37,665 $ 34,654
Major Classifications of Foreclosed Properties	The major classifications of foreclosed properties are shown in the following table: (in thousands) September 30 2016 December 31 2015 1-4 family $ 6,793 $ 7,493 Agricultural/farmland 93 116 Construction/land development/other 21,372 22,570 Multifamily 270 833 Non-farm/non-residential 9,137 9,662 Total foreclosed properties $ 37,665 $ 40,674

Repurchase Agreements (Tables)

Repurchase Agreements (Tables)	9 Months Ended
	Sep. 30, 2016
Repurchase Agreements [Abstract]
Remaining Contractual Maturity of Securities Sold Under Agreements to Repurchase by Class of Collateral Pledged	The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the accompanying consolidated balance sheets as of September 30, 2016 and December 31, 2015 is presented in the following tables: September 30, 2016 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 21,892 $ 30,072 $ 261 $ 52,930 $ 105,155 State and political subdivisions 56,895 5,008 2,255 5,955 70,113 U.S. government sponsored agency mortgage-backed securities 27,992 28,920 204 29,911 87,027 Total $ 106,779 $ 64,000 $ 2,720 $ 88,796 $ 262,295 December 31, 2015 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 19,184 $ 0 $ 10,401 $ 48,695 $ 78,280 State and political subdivisions 58,676 494 1,656 9,159 69,985 U.S. government sponsored agency mortgage-backed securities 27,810 6 12,278 62,866 102,960 Total $ 105,670 $ 500 $ 24,335 $ 120,720 $ 251,225

Fair Market Value of Financia23

Fair Market Value of Financial Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Market Value of Financial Assets and Liabilities [Abstract]
Fair Value Assets Measured on Recurring Basis	The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a recurring basis as of September 30, 2016 and December 31, 2015 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at September 30, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 245,111 $ 44,981 $ 200,130 $ 0 State and political subdivisions 133,175 0 133,175 0 U.S. government sponsored agenc y mortgage-backed securities 227,771 0 227,771 0 CRA investment funds 25,144 25,144 0 0 Mortgage servicing rights 2,964 0 0 2,964 Fair Value Measurements at December 31, 2015 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 239,394 $ 44,702 $ 194,692 $ 0 State and political subdivisions 129,215 0 129,215 0 U.S. government sponsored agenc y mortgage-backed securities 201,576 0 201,576 0 CRA investment funds 24,751 24,751 0 0 Mortgage servicing rights 3,236 0 0 3,236
Reconciliation of the Beginning and Ending Balance of Recurring Fair Value Measurements Using Significant Unobservable (Level 3) Inputs	Following is a reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying balance sheet using significant unobservable (Level 3) inputs for the three and nine months ended September 30, 2016 and 2015: Mortgage Servicing Rights Three Months Ended Nine Months Ended September 30 September 30 (in thousands) 2016 2015 2016 2015 Beginning balance $ 2,797 $ 3,235 $ 3,236 $ 2,968 Total recognized gains (losses) Included in net income 118 (228 ) (422 ) (37 ) Issues 167 146 388 443 Settlements (118 ) (123 ) (238 ) (344 ) Ending balance $ 2,964 $ 3,030 $ 2,964 $ 3,030 Total gains (losses) for the period included in net income attributable to the change in unrealized gains or losses related to assets still held at the reporting date $ 118 $ (228 ) $ (422 ) $ (37 )
Realized and Unrealized Gains and Losses for Items Included in Net Income in the Consolidated Statements of Income	Realized and unrealized gains and losses for items reflected in the tables above are included in net income in the consolidated statements of income as follows: Noninterest Income Three Months Ended Nine Months Ended September 30 September 30 (in thousands) 2016 2015 2016 2015 Total gains (losses) $ 0 $ (351 ) $ (660 ) $ (381 )
Fair Value Measurements of Recognized Assets Measured on Nonrecurring Basis	The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a nonrecurring basis as of September 30, 2016 and December 31, 2015 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at September 30, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 4,824 $ 0 $ 0 $ 4,824 Other real estate/assets owned 2,687 0 0 2,687 Fair Value Measurements at December 31, 2015 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 3,192 $ 0 $ 0 $ 3,192 Other real estate/assets owned 6,798 0 0 6,798
Quantitative Information About Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements	The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements at September 30, 2016 and December 31, 2015. (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at September 30, 2016 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 2,964 Discount cash flows, computer pricing model Constant prepayment rate 6.1% - 26.2% (12.1%) Probability of default 0.0% - 100.0% (2.6%) Discount rate 10.0% - 11.0% (10.1%) Impaired loans (collateral-dependent) $ 4,824 Market comparable properties Marketability discount 0.0% - 82.5% (25.7%) Other real estate/assets owned $ 2,687 Market comparable properties Comparability adjustments 10.0% - 100.0% (18.1%) (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at December 31, 2015 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 3,236 Discount cash flows, computer pricing model Constant prepayment rate 6.1% - 22.4% (10.0%) Probability of default 0.0% - 100.0% (2.6%) Discount rate 10.0% - 11.5% (10.1%) Impaired loans (collateral-dependent) $ 3,192 Market comparable properties Marketability discount 0.0% - 76.7% (26.8%) Other real estate/assets owned $ 6,798 Market comparable properties Comparability adjustments 5.0% - 51.8% (11.7%)
Fair Value of Financial Instruments and Levels within the Fair Value Hierarchy of the Valuation Techniques	The following table presents estimated fair value of CTBI’s financial instruments as of September 30, 2016 and indicates the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at September 30, 2016 Using (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 121,178 $ 121,178 $ 0 $ 0 Certificates of deposit in other banks 980 0 983 0 Securities available-for-sale 631,201 70,125 561,076 0 Securities held-to-maturity 1,181 0 1,182 0 Loans held for sale 2,075 2,119 0 0 Loans, net 2,895,498 0 0 2,897,616 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 11,912 0 11,912 0 Mortgage servicing rights 2,964 0 0 2,964 Financial liabilities: Deposits $ 3,053,985 $ 763,187 $ 2,299,370 $ 0 Repurchase agreements 262,295 0 0 262,208 Federal funds purchased 6,798 0 6,798 0 Advances from Federal Home Loan Bank 971 0 1,044 0 Long-term debt 61,341 0 0 49,073 Accrued interest payable 2,245 0 2,245 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0 The following table presents estimated fair value of CTBI’s financial instruments as of December 31, 2015 and indicates the level within the fair value hierarchy of the valuation techniques. (in thousands) Fair Value Measurements at December 31, 2015 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 187,611 $ 187,611 $ 0 $ 0 Certificates of deposit in other banks 3,832 0 3,836 0 Securities available-for-sale 594,936 69,453 525,483 0 Securities held-to-maturity 1,661 0 1,651 0 Loans held for sale 1,172 1,196 0 0 Loans, net 2,837,867 0 0 2,833,267 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 12,194 0 12,194 0 Mortgage servicing rights 3,236 0 0 3,236 Financial liabilities: Deposits $ 2,980,782 $ 749,975 $ 2,208,120 $ 0 Repurchase agreements 251,225 0 0 250,873 Federal funds purchased 3,596 0 3,596 0 Advances from Federal Home Loan Bank 101,056 0 100,905 0 Long-term debt 61,341 0 0 49,073 Accrued interest payable 1,071 0 1,071 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended September 30 September 30 (in thousands except per share data) 2016 2015 2016 2015 Numerator: Net income $ 12,312 $ 11,222 $ 35,480 $ 34,562 Denominator: Basic earnings per share: Weighted average shares 17,554 17,440 17,532 17,420 Diluted earnings per share: Effect of dilutive stock options and restricted stock grants 15 51 16 52 Adjusted weighted average shares 17,569 17,491 17,548 17,472 Earnings per share: Basic earnings per share $ 0.70 $ 0.64 $ 2.02 $ 1.98 Diluted earnings per share 0.70 0.64 2.02 1.98

Accumulated Other Comprehensi25

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2016
Accumulated Other Comprehensive Income [Abstract]
Amounts Reclassified from Accumulated Other Comprehensive Income (AOCI)	Amounts reclassified from accumulated other comprehensive income (AOCI) and the affected line items in the statements of income during the three and nine months ended September 30, 2016 and 2015 were: Amounts Reclassified from AOCI (in thousands) Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 Affected line item in the statements of income Securities gains $ 458 $ 12 $ 522 $ 142 Tax expense 160 4 183 50 Total reclassifications out of AOCI $ 298 $ 8 $ 339 $ 92

Summary of Significant Accoun26

Summary of Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2016PaymentQuarter
Financing Receivable, Allowance for Credit Losses [Line Items]
Past due period after which loans must be well secured and in the process of collection to continue accruing interest	90 days
Number of delinquent monthly payments before loan charge off | Payment	5
Current value assessment period for past due loans secured against real estate	90 days
Threshold period past due for initiation of foreclosure proceedings	120 days
Historical loan loss review period | Quarter	12
Minimum [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Period of current principal and interest payments for reclassifying nonaccrual loans as accruing loans	6 months
Other Real Estate Owned [Abstract]
Typical frequency of periodic reviews	12 months
Maximum [Member]
Other Real Estate Owned [Abstract]
Typical frequency of periodic reviews	18 months
Frequency of periodic reviews in general	24 months
Commercial [Member] | Unsecured Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Charge off threshold for loans considered uncollectible	90 days
Consumer [Member] | Closed-End Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Charge off threshold for loans considered uncollectible	120 days

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense			$ 347	$ 518
Black-Scholes option pricing model, weighted average assumptions [Abstract]
Expected dividend yield			3.72%	3.72%
Risk-free interest rate			1.45%	1.54%
Expected volatility			30.77%	30.77%
Expected term			7 years	7 years
Weighted average fair value of options (in dollars per share)			$ 6.80	$ 6.60
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 15	$ 10	$ 42	$ 29
Unrecognized compensation expense related to unvested stock option awards	$ 200		$ 200
Unrecognized compensation expense, weighted average period			3 years 6 months
Options granted to purchase shares of CTBI common stock (in shares)	0	0	10,000	20,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 97	$ 186	$ 305	$ 554
Dividend paid on stock based compensation	9	$ 20	$ 28	$ 59
Unrecognized compensation expense, weighted average period			2 years 9 months 18 days
Unrecognized compensation expense related to restricted stock grants	$ 700		$ 700
Granted (in shares)	0	0	18,069	10,582
2015 Plan [Member] | Granted in 2016 [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			4 years
2015 Plan [Member] | Granted in 2016 [Member] | Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of certain participant employee termination events following change in control for restriction on restricted stock granted to lapse			24 months
2006 Plan [Member] | Granted in 2015 [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			4 years

Securities, Amortized Cost and

Securities, Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Available-for-sale debt securities [Abstract]
Amortized cost	$ 599,418	$ 568,381
Gross unrealized gains	7,777	5,582
Gross unrealized losses	(1,138)	(3,778)
Fair value	606,057	570,185
Available-for-sale [Abstract]
Amortized cost	624,418	593,381
Gross unrealized gains	8,070	5,714
Gross unrealized losses	(1,287)	(4,159)
Fair value	631,201	594,936
Held-to-maturity [Abstract]
Amortized cost	1,181	1,661
Gross unrealized gains	1	2
Gross unrealized losses	0	(12)
Fair value	1,182	1,651
U.S. Treasury and Government Agencies [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	243,980	240,434
Gross unrealized gains	1,311	311
Gross unrealized losses	(180)	(1,351)
Fair value	245,111	239,394
State and Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	128,644	125,665
Gross unrealized gains	4,646	3,707
Gross unrealized losses	(115)	(157)
Fair value	133,175	129,215
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	226,794	202,282
Gross unrealized gains	1,820	1,564
Gross unrealized losses	(843)	(2,270)
Fair value	227,771	201,576
CRA Investments Funds [Member]
Available-for-sale equity securities [Abstract]
Amortized cost	25,000	25,000
Gross unrealized gains	293	132
Gross unrealized losses	(149)	(381)
Fair value	25,144	24,751
U.S. Treasury and Government Agencies [Member]
Held-to-maturity [Abstract]
Amortized cost		480
Gross unrealized gains		0
Gross unrealized losses		(12)
Fair value		468
State and Political Subdivisions [Member]
Held-to-maturity [Abstract]
Amortized cost	1,181	1,181
Gross unrealized gains	1	2
Gross unrealized losses	0	0
Fair value	$ 1,182	$ 1,183

Securities, Amortized Cost an29

Securities, Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Available-for-sale, amortized cost [Abstract]
Due in one year or less	$ 68,479
Due after one through five years	154,511
Due after five through ten years	63,044
Due after ten years	86,590
U.S. government sponsored agency mortgage-backed securities	226,794
Amortized cost	599,418	$ 568,381
CRA investment funds	25,000
Amortized cost	624,418	593,381
Available-for-sale, fair value [Abstract]
Due in one year or less	68,576
Due after one through five years	156,366
Due after five through ten years	65,336
Due after ten years	88,008
U.S. government sponsored agency mortgage-backed securities	227,771
Total debt securities	606,057	570,185
CRA investment funds	25,144
Total securities	631,201	594,936
Held-to-maturity, amortized cost [Abstract]
Due in one year or less	0
Due after one through five years	1,181
Due after five through ten years	0
Due after ten years	0
U.S. government sponsored agency mortgage-backed securities	0
Amortized cost	1,181	1,661
CRA investment funds	0
Total securities	1,181
Held-to-maturity, fair value [Abstract]
Due in one year or less	0
Due after one through five years	1,182
Due after five through ten years	0
Due after ten years	0
U.S. government sponsored agency mortgage-backed securities	0
Total debt securities	1,182	$ 1,651
CRA investment funds	0
Total securities	$ 1,182

Securities, Gains (Loss) on Sal

Securities, Gains (Loss) on Sales of Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Securities [Abstract]
Net gains (loss) on sales and calls of AFS securities	$ 458	$ 12	$ 522	$ 142
Pre-tax gain on sale of securities	460		529	840
Pre-tax loss on sale of securities	2		7	$ 698
Amortized cost of securities pledged as collateral to secure public deposit and for other purposes	203,400		203,400		$ 228,200
Amortized cost of securities sold under agreements to repurchase	$ 297,400		$ 297,400		$ 285,500

Securities, Securities in Conti

Securities, Securities in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Securities [Abstract]
Percentage of total investment with unrealized losses	36.00%	61.10%
Available-for-sale, amortized cost [Abstract]
Less than 12 months	$ 188,480	$ 255,346
12 months or more	40,392	112,868
Total	228,872	368,214
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(595)	(1,675)
12 months or more	(692)	(2,484)
Total	(1,287)	(4,159)
Available-for-sale, fair value [Abstract]
Less than 12 months	187,885	253,671
12 months or more	39,700	110,384
Total	227,585	364,055
Held-to-maturity, amortized cost [Abstract]
12 months or more		480
Held-to-maturity, gross unrealized losses [Abstract]
12 months or more		(12)
Held-to-maturity, fair value [Abstract]
12 months or more		468
U.S. Treasury and Government Agencies [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	58,160	142,147
12 months or more	1,927	54,773
Total	60,087	196,920
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(155)	(487)
12 months or more	(25)	(864)
Total	(180)	(1,351)
Available-for-sale, fair value [Abstract]
Less than 12 months	58,005	141,660
12 months or more	1,902	53,909
Total	59,907	195,569
State and Political Subdivisions [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	10,697	11,190
12 months or more	753	3,187
Total	11,450	14,377
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(105)	(106)
12 months or more	(10)	(51)
Total	(115)	(157)
Available-for-sale, fair value [Abstract]
Less than 12 months	10,592	11,084
12 months or more	743	3,136
Total	11,335	14,220
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	109,623	92,009
12 months or more	32,712	49,908
Total	142,335	141,917
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(308)	(899)
12 months or more	(535)	(1,371)
Total	(843)	(2,270)
Available-for-sale, fair value [Abstract]
Less than 12 months	109,315	91,110
12 months or more	32,177	48,537
Total	141,492	139,647
Debt Securities [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	178,480	245,346
12 months or more	35,392	107,868
Total	213,872	353,214
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(568)	(1,492)
12 months or more	(570)	(2,286)
Total	(1,138)	(3,778)
Available-for-sale, fair value [Abstract]
Less than 12 months	177,912	243,854
12 months or more	34,822	105,582
Total	212,734	349,436
CRA Investments Funds [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	10,000	10,000
12 months or more	5,000	5,000
Total	15,000	15,000
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(27)	(183)
12 months or more	(122)	(198)
Total	(149)	(381)
Available-for-sale, fair value [Abstract]
Less than 12 months	9,973	9,817
12 months or more	4,878	4,802
Total	$ 14,851	14,619
Severity of impairment in percentage of fair value less than cost	0.60%
U.S. Treasury and Government Agencies [Member]
Held-to-maturity, amortized cost [Abstract]
12 months or more		480
Held-to-maturity, gross unrealized losses [Abstract]
12 months or more		(12)
Held-to-maturity, fair value [Abstract]
12 months or more		$ 468

Loans, Major Classifications of

Loans, Major Classifications of Loans, Net of Income and Deferred Loan Origination Cost (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016USD ($)Segment	Dec. 31, 2015USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,931,299	$ 2,873,961
Number of portfolio segments | Segment	9
Loans held for sale [Abstract]
Loans held for sale	$ 2,075	1,172
Commercial [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	68,275	78,020
Commercial [Member] | Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,083,640	1,052,919
Commercial [Member] | Equipment Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	6,242	8,514
Commercial [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	354,984	358,898
Residential [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	55,412	61,750
Residential [Member] | Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	706,028	707,874
Residential [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	89,467	89,450
Consumer [Member] | Consumer Direct [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	131,815	126,406
Consumer [Member] | Consumer Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 435,436	$ 390,130

Loans, Nonaccrual Loans Segrega

Loans, Nonaccrual Loans Segregated by Class of Loans and Loan Portfolio Aging Analysis, Segregated by Class (Details) - USD ($)		9 Months Ended
		Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		$ 16,798,000	$ 16,563,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		44,864,000	40,279,000
Current		2,886,435,000	2,833,682,000
Total Loans		2,931,299,000	2,873,961,000
90+ and Accruing	[1]	11,498,000	12,046,000
Minimum threshold amount of loans requiring performance bond		500,000
30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		11,575,000	9,010,000
60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		10,681,000	6,140,000
90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		$ 22,608,000	25,129,000
Equipment Lease Financing [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Financing percentage requested for underwriting loans		100.00%
Commercial [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Loans		$ 1,513,141,000	1,498,351,000
Commercial [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		2,216,000	3,402,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,256,000	3,473,000
Current		66,019,000	74,547,000
Total Loans		68,275,000	78,020,000
90+ and Accruing	[1]	24,000	30,000
Commercial [Member] | Construction [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		41,000	36,000
Commercial [Member] | Construction [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	6,000
Commercial [Member] | Construction [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,215,000	3,431,000
Commercial [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		7,328,000	5,928,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		15,766,000	11,492,000
Current		1,067,874,000	1,041,427,000
Total Loans		1,083,640,000	1,052,919,000
90+ and Accruing	[1]	5,001,000	3,757,000
Commercial [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		3,720,000	2,947,000
Commercial [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,850,000	622,000
Commercial [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		9,196,000	7,923,000
Commercial [Member] | Equipment Lease Financing [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	199,000
Current		6,242,000	8,315,000
Total Loans		6,242,000	8,514,000
90+ and Accruing	[1]	0	0
Commercial [Member] | Equipment Lease Financing [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	199,000
Commercial [Member] | Equipment Lease Financing [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	0
Commercial [Member] | Equipment Lease Financing [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	0
Commercial [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		1,446,000	1,485,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,796,000	2,359,000
Current		352,188,000	356,539,000
Total Loans		354,984,000	358,898,000
90+ and Accruing	[1]	345,000	310,000
Commercial [Member] | Other [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,277,000	762,000
Commercial [Member] | Other [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		236,000	121,000
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,283,000	1,476,000
Residential [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		11,000	249,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,150,000	796,000
Current		53,262,000	60,954,000
Total Loans		55,412,000	61,750,000
90+ and Accruing	[1]	478,000	55,000
Residential [Member] | Construction [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,386,000	443,000
Residential [Member] | Construction [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		286,000	62,000
Residential [Member] | Construction [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		478,000	291,000
Residential [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		5,475,000	5,206,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		15,028,000	15,923,000
Current		691,000,000	691,951,000
Total Loans		706,028,000	707,874,000
90+ and Accruing	[1]	4,819,000	6,925,000
Residential [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		897,000	1,128,000
Residential [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		5,762,000	3,888,000
Residential [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		8,369,000	10,907,000
Residential [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		322,000	183,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,908,000	1,255,000
Current		87,559,000	88,195,000
Total Loans		89,467,000	89,450,000
90+ and Accruing	[1]	405,000	448,000
Residential [Member] | Home Equity [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		947,000	527,000
Residential [Member] | Home Equity [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		320,000	148,000
Residential [Member] | Home Equity [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		641,000	580,000
Consumer [Member] | Consumer Direct [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		0	110,000
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,260,000	1,440,000
Current		130,555,000	124,966,000
Total Loans		131,815,000	126,406,000
90+ and Accruing	[1]	109,000	126,000
Consumer [Member] | Consumer Direct [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		901,000	835,000
Consumer [Member] | Consumer Direct [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		250,000	479,000
Consumer [Member] | Consumer Direct [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		109,000	126,000
Consumer [Member] | Consumer Indirect [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		3,700,000	3,342,000
Current		431,736,000	386,788,000
Total Loans		435,436,000	390,130,000
90+ and Accruing	[1]	317,000	395,000
Consumer [Member] | Consumer Indirect [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,406,000	2,133,000
Consumer [Member] | Consumer Indirect [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		977,000	814,000
Consumer [Member] | Consumer Indirect [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		$ 317,000	$ 395,000
[1]	90+ and Accruing are also included in 90+ Days Past Due column.

Loans, Credit Risk Profile Base

Loans, Credit Risk Profile Based on Rating Category and Payment Activity and on Performing and Nonperforming Status, Segregated by Class (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
		Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		$ 2,931,299	$ 2,873,961
Consumer mortgage loans secured by real estate properties in formal foreclosure proceedings		3,300	4,400
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		$ 1,513,141	1,498,351
Commercial [Member] | Minimum [Member]
Financing Receivable, Recorded Investment [Line Items]
Review period for loans		12 months
Commercial [Member] | Maximum [Member]
Financing Receivable, Recorded Investment [Line Items]
Review period for loans		18 months
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		$ 1,336,631	1,320,788
Commercial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		89,876	114,431
Commercial [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		37,050	16,934
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		48,018	43,084
Commercial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,566	3,114
Commercial [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		68,275	78,020
Commercial [Member] | Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		55,878	62,978
Commercial [Member] | Construction [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		4,006	4,931
Commercial [Member] | Construction [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		2,330	2,206
Commercial [Member] | Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		5,871	6,780
Commercial [Member] | Construction [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		190	1,125
Commercial [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,083,640	1,052,919
Commercial [Member] | Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		970,069	937,196
Commercial [Member] | Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		54,232	71,830
Commercial [Member] | Real Estate [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		27,688	13,765
Commercial [Member] | Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		31,095	29,232
Commercial [Member] | Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		556	896
Commercial [Member] | Equipment Lease [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		6,242	8,514
Commercial [Member] | Equipment Lease [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		5,885	8,514
Commercial [Member] | Equipment Lease [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		0	0
Commercial [Member] | Equipment Lease [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		357	0
Commercial [Member] | Equipment Lease [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		0	0
Commercial [Member] | Equipment Lease [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		0	0
Commercial [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		354,984	358,898
Commercial [Member] | Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		304,799	312,100
Commercial [Member] | Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		31,638	37,670
Commercial [Member] | Other [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		6,675	963
Commercial [Member] | Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		11,052	7,072
Commercial [Member] | Other [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		820	1,093
Residential [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		55,412	61,750
Residential [Member] | Construction [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		54,923	61,446
Residential [Member] | Construction [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	489	304
Residential [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		706,028	707,874
Residential [Member] | Real Estate [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		695,734	695,743
Residential [Member] | Real Estate [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	10,294	12,131
Residential [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		89,467	89,450
Residential [Member] | Home Equity [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		88,740	88,819
Residential [Member] | Home Equity [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	727	631
Consumer [Member] | Consumer Direct [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		131,815	126,406
Consumer [Member] | Consumer Direct [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		131,706	126,170
Consumer [Member] | Consumer Direct [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	109	236
Consumer [Member] | Consumer Indirect [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		435,436	390,130
Consumer [Member] | Consumer Indirect [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		435,119	389,735
Consumer [Member] | Consumer Indirect [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	317	395
Residential and Consumer Portfolio Segments [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,418,158	1,375,610
Residential and Consumer Portfolio Segments [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,406,222	1,361,913
Residential and Consumer Portfolio Segments [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	$ 11,936	$ 13,697
[1]	A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual.

Loans, Impaired Loans, Average

Loans, Impaired Loans, Average Investments in Impaired Loans, and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Loans with a specific valuation allowance [Abstract]
Specific Allowance		$ 1,149	$ 1,348	$ 1,149	$ 1,348	$ 2,461
Total impaired loans [Abstract]
Recorded balance		55,045	48,339	55,045	48,339	49,888
Unpaid Contractual Principal Balance		58,743	51,635	58,743	51,635	53,243
Specific Allowance		1,149	1,348	1,149	1,348	2,461
Average Investment in Impaired Loans		55,572	49,134	56,646	52,515	51,976
Interest Income Recognized	[1]	622	450	1,866	1,391	1,952
Commercial [Member] | Construction [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		4,270	4,669	4,270	4,669	2,861
Unpaid Contractual Principal Balance		4,293	4,669	4,293	4,669	2,862
Average Investment in Impaired Loans		4,299	4,864	4,450	5,142	4,574
Interest Income Recognized	[1]	63	41	168	160	200
Loans with a specific valuation allowance [Abstract]
Recorded Balance		1,668	3,411	1,668	3,411	3,402
Unpaid Contractual Principal Balance		1,670	3,412	1,670	3,412	3,402
Specific Allowance		212	719	212	719	831
Average Investment in Impaired Loans		1,798	3,445	2,524	3,712	3,631
Interest Income Recognized	[1]	0	0	0	0	0
Total impaired loans [Abstract]
Recorded balance		5,938	8,080	5,938	8,080	6,263
Unpaid Contractual Principal Balance		5,963	8,081	5,963	8,081	6,264
Specific Allowance		212	719	212	719	831
Average Investment in Impaired Loans		6,097	8,309	6,974	8,854	8,205
Interest Income Recognized	[1]	63	41	168	160	200
Commercial [Member] | Real Estate [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		32,311	30,318	32,311	30,318	30,761
Unpaid Contractual Principal Balance		33,004	31,551	33,004	31,551	32,166
Average Investment in Impaired Loans		32,534	30,713	31,795	30,357	30,605
Interest Income Recognized	[1]	390	316	1,164	985	1,378
Loans with a specific valuation allowance [Abstract]
Recorded Balance		3,537	835	3,537	835	2,660
Unpaid Contractual Principal Balance		4,688	1,075	4,688	1,075	2,768
Specific Allowance		747	317	747	317	1,227
Average Investment in Impaired Loans		3,547	841	3,957	2,244	2,349
Interest Income Recognized	[1]	1	6	19	7	7
Total impaired loans [Abstract]
Recorded balance		35,848	31,153	35,848	31,153	33,421
Unpaid Contractual Principal Balance		37,692	32,626	37,692	32,626	34,934
Specific Allowance		747	317	747	317	1,227
Average Investment in Impaired Loans		36,081	31,554	35,752	32,601	32,954
Interest Income Recognized	[1]	391	322	1,183	992	1,385
Commercial [Member] | Other [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		11,382	7,163	11,382	7,163	7,500
Unpaid Contractual Principal Balance		13,191	8,804	13,191	8,804	9,148
Average Investment in Impaired Loans		11,497	7,312	11,564	9,182	8,802
Interest Income Recognized	[1]	153	73	470	201	316
Loans with a specific valuation allowance [Abstract]
Recorded Balance		388	754	388	754	960
Unpaid Contractual Principal Balance		408	935	408	935	1,153
Specific Allowance		190	312	190	312	403
Average Investment in Impaired Loans		405	776	597	788	836
Interest Income Recognized	[1]	0	1	0	1	1
Total impaired loans [Abstract]
Recorded balance		11,770	7,917	11,770	7,917	8,460
Unpaid Contractual Principal Balance		13,599	9,739	13,599	9,739	10,301
Specific Allowance		190	312	190	312	403
Average Investment in Impaired Loans		11,902	8,088	12,161	9,970	9,638
Interest Income Recognized	[1]	153	74	470	202	317
Residential [Member] | Real Estate [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		1,489	1,189	1,489	1,189	1,744
Unpaid Contractual Principal Balance		1,489	1,189	1,489	1,189	1,744
Average Investment in Impaired Loans		1,492	1,183	1,759	1,090	1,179
Interest Income Recognized	[1]	15	13	45	37	50
Loans with a specific valuation allowance [Abstract]
Specific Allowance		0	0	0	0	0
Total impaired loans [Abstract]
Recorded balance		1,489	1,189	1,489	1,189	1,744
Unpaid Contractual Principal Balance		1,489	1,189	1,489	1,189	1,744
Specific Allowance		0	0	0	0	0
Average Investment in Impaired Loans		1,492	1,183	1,759	1,090	1,179
Interest Income Recognized	[1]	$ 15	$ 13	$ 45	$ 37	$ 50
[1]	Cash basis interest is substantially the same as interest income recognized.

Loans, Troubled Debt Restructur

Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016USD ($)Loan	Sep. 30, 2015USD ($)Loan	Sep. 30, 2016USD ($)Loan	Sep. 30, 2015USD ($)Loan	Dec. 31, 2015USD ($)Loan
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	2	6	45	18	34
Post-Modification Outstanding Balance	$ 152	$ 1,650	$ 13,070	$ 2,601	$ 11,127
Defaulted restructured loans, number of loans | Loan	2	2	4	5
Defaulted restructured loans, recorded investment	$ 1,460	$ 31	$ 2,328	$ 680
Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	152	1,485	12,210	2,146	8,519
Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	0	0	0	0
Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 0	$ 165	$ 860	$ 455	$ 2,608
Commercial [Member] | Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			5		3
Post-Modification Outstanding Balance			$ 1,408		$ 428
Commercial [Member] | Construction [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			1,408		428
Commercial [Member] | Construction [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			0		0
Commercial [Member] | Construction [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			$ 0		$ 0
Commercial [Member] | Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	2	5	23	13	21
Post-Modification Outstanding Balance	$ 152	$ 511	$ 6,341	$ 1,118	$ 6,004
Defaulted restructured loans, number of loans | Loan	1	2	2	4
Defaulted restructured loans, recorded investment	$ 1,446	$ 31	$ 1,956	$ 390
Commercial [Member] | Real Estate [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	152	346	5,761	953	4,244
Commercial [Member] | Real Estate [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Real Estate [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 0	$ 165	$ 580	$ 165	$ 1,760
Commercial [Member] | Other [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1	16	4	7
Post-Modification Outstanding Balance		$ 1,139	$ 5,041	$ 1,193	$ 3,847
Defaulted restructured loans, number of loans | Loan	1		2
Defaulted restructured loans, recorded investment	$ 14		$ 372
Commercial [Member] | Other [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance		1,139	5,041	1,193	3,847
Commercial [Member] | Other [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance		0	0	0	0
Commercial [Member] | Other [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance		$ 0	$ 0	$ 0	$ 0
Residential [Member] | Construction [Member]
Financing Receivable, Modifications [Line Items]
Defaulted restructured loans, number of loans | Loan		0		1
Defaulted restructured loans, recorded investment		$ 0		$ 290
Residential [Member] | Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			1	1	3
Post-Modification Outstanding Balance			$ 280	$ 290	$ 848
Residential [Member] | Real Estate [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			0	0	0
Residential [Member] | Real Estate [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			0	0	0
Residential [Member] | Real Estate [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			$ 280	$ 290	$ 848

Allowance for Loan and Lease 37

Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Allowance for loan losses [Roll Forward]
Beginning balance	$ 35,697	$ 35,190	$ 36,094	$ 34,447	$ 34,447
Provision charged to expense	2,191	2,520	5,829	6,740	8,650
Losses charged off	(2,962)	(2,899)	(8,729)	(7,819)	(9,870)
Recoveries	875	729	2,607	2,172	2,867
Ending balance	35,801	35,540	35,801	35,540	36,094
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	1,149	1,348	1,149	1,348	2,461
Collectively evaluated for impairment	34,652	34,192	34,652	34,192	33,633
Loans ending balance [Abstract]
Individually evaluated for impairment	55,045	48,339	55,045	48,339	49,888
Collectively evaluated for impairment	2,876,254	2,772,121	2,876,254	2,772,121	2,824,073
Commercial [Member] | Construction [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	1,437	2,622	2,199	2,896	2,896
Provision charged to expense	54	151	(701)	(127)	(707)
Losses charged off	(79)	0	(94)	(2)	(3)
Recoveries	18	3	26	9	13
Ending balance	1,430	2,776	1,430	2,776	2,199
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	212	719	212	719	831
Collectively evaluated for impairment	1,218	2,057	1,218	2,057	1,368
Loans ending balance [Abstract]
Individually evaluated for impairment	5,938	8,080	5,938	8,080	6,263
Collectively evaluated for impairment	62,337	98,775	62,337	98,775	71,757
Commercial [Member] | Real Estate [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	14,438	13,022	14,434	13,618	13,618
Provision charged to expense	585	293	1,726	577	2,135
Losses charged off	(319)	(364)	(1,505)	(1,290)	(1,379)
Recoveries	78	2	127	48	60
Ending balance	14,782	12,953	14,782	12,953	14,434
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	747	317	747	317	1,227
Collectively evaluated for impairment	14,035	12,636	14,035	12,636	13,207
Loans ending balance [Abstract]
Individually evaluated for impairment	35,848	31,153	35,848	31,153	33,421
Collectively evaluated for impairment	1,047,792	966,501	1,047,792	966,501	1,019,498
Commercial [Member] | Equipment Lease Financing [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	94	113	79	119	119
Provision charged to expense	(28)	(9)	(13)	(15)	(40)
Losses charged off	0	0	0	0	0
Recoveries	0	0	0	0	0
Ending balance	66	104	66	104	79
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	66	104	66	104	79
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	6,242	9,146	6,242	9,146	8,514
Commercial [Member] | Other [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	4,430	4,414	4,225	4,263	4,263
Provision charged to expense	185	153	1,156	1,054	1,338
Losses charged off	(622)	(431)	(1,667)	(1,495)	(1,961)
Recoveries	92	149	371	463	585
Ending balance	4,085	4,285	4,085	4,285	4,225
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	190	312	190	312	403
Collectively evaluated for impairment	3,895	3,973	3,895	3,973	3,822
Loans ending balance [Abstract]
Individually evaluated for impairment	11,770	7,917	11,770	7,917	8,460
Collectively evaluated for impairment	343,214	338,401	343,214	338,401	350,438
Residential [Member] | Construction [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	558	570	550	534	534
Provision charged to expense	8	61	144	184	147
Losses charged off	(61)	(20)	(192)	(110)	(135)
Recoveries	4	0	7	3	4
Ending balance	509	611	509	611	550
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	509	611	509	611	550
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	55,412	62,226	55,412	62,226	61,750
Residential [Member] | Real Estate [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	6,372	6,965	6,678	6,094	6,094
Provision charged to expense	330	564	440	2,023	1,888
Losses charged off	(366)	(647)	(849)	(1,260)	(1,421)
Recoveries	8	52	75	77	117
Ending balance	6,344	6,934	6,344	6,934	6,678
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	6,344	6,934	6,344	6,934	6,678
Loans ending balance [Abstract]
Individually evaluated for impairment	1,489	1,189	1,489	1,189	1,744
Collectively evaluated for impairment	704,539	704,998	704,539	704,998	706,130
Residential [Member] | Home Equity [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	819	867	839	756	756
Provision charged to expense	3	(38)	(1)	128	158
Losses charged off	0	0	(21)	(67)	(129)
Recoveries	2	41	7	53	54
Ending balance	824	870	824	870	839
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	824	870	824	870	839
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	89,467	88,624	89,467	88,624	89,450
Consumer [Member] | Consumer Direct [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	1,634	1,541	1,594	1,574	1,574
Provision charged to expense	170	382	669	804	891
Losses charged off	(204)	(436)	(893)	(1,101)	(1,306)
Recoveries	111	113	341	323	435
Ending balance	1,711	1,600	1,711	1,600	1,594
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	1,711	1,600	1,711	1,600	1,594
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	131,815	125,847	131,815	125,847	126,406
Consumer [Member] | Consumer Indirect [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	5,915	5,076	5,496	4,593	4,593
Provision charged to expense	884	963	2,409	2,112	2,840
Losses charged off	(1,311)	(1,001)	(3,508)	(2,494)	(3,536)
Recoveries	562	369	1,653	1,196	1,599
Ending balance	6,050	5,407	6,050	5,407	5,496
Allowance for loan losses ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	6,050	5,407	6,050	5,407	5,496
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	$ 435,436	$ 377,603	$ 435,436	$ 377,603	$ 390,130

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Activity for other real estate owned [Roll Forward]
Beginning balance of other real estate owned	$ 37,740	$ 36,698	$ 40,674	$ 36,776
New assets acquired	1,008	3,725	4,300	9,986
Capitalized costs	0	0	0	85
Fair value adjustments	(408)	(784)	(632)	(1,146)
Sale of assets	(675)	(4,985)	(6,677)	(11,047)
Ending balance of other real estate owned	37,665	34,654	37,665	34,654
Carrying cost and fair value adjustments for foreclosed properties	$ 900	$ 1,300	$ 1,900	$ 2,500

Other Real Estate Owned, Major

Other Real Estate Owned, Major Classifications of Foreclosed Properties (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	$ 37,665	$ 37,740	$ 40,674	$ 34,654	$ 36,698	$ 36,776
1-4 Family [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	6,793		7,493
Agricultural/Farmland [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	93		116
Construction/Land Development/Other [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	21,372		22,570
Multifamily [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	270		833
Non-farm/Non-residential [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	$ 9,137		$ 9,662

Repurchase Agreements (Details)

Repurchase Agreements (Details) - Securities Sold under Agreements to Repurchase [Member] - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Carrying value of investment securities available for sale pledged as collateral under repurchase agreements	$ 302,600	$ 288,100
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	262,295	251,225
Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	106,779	105,670
Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	64,000	500
30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	2,720	24,335
Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	88,796	120,720
U.S. Treasury and Government Agencies [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	105,155	78,280
U.S. Treasury and Government Agencies [Member] | Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	21,892	19,184
U.S. Treasury and Government Agencies [Member] | Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	30,072	0
U.S. Treasury and Government Agencies [Member] | 30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	261	10,401
U.S. Treasury and Government Agencies [Member] | Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	52,930	48,695
State and Political Subdivisions [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	70,113	69,985
State and Political Subdivisions [Member] | Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	56,895	58,676
State and Political Subdivisions [Member] | Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	5,008	494
State and Political Subdivisions [Member] | 30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	2,255	1,656
State and Political Subdivisions [Member] | Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	5,955	9,159
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	87,027	102,960
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	27,992	27,810
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	28,920	6
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | 30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	204	12,278
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	$ 29,911	$ 62,866

Fair Market Value of Financia41

Fair Market Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 631,201	$ 594,936		$ 631,201		$ 594,936
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gains (losses)	0		$ (351)	$ (660)	$ (381)
Minimum [Member]
Other real estate owned [Abstract]
Typical frequency of periodic reviews				12 months
Maximum [Member]
Other real estate owned [Abstract]
Typical frequency of periodic reviews				18 months
Frequency of periodic reviews in general				24 months
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	70,125	69,453		$ 70,125		69,453
Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	561,076	525,483		561,076		525,483
Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	2,964	3,236		2,964		3,236
Recurring [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	245,111	239,394		245,111		239,394
Recurring [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	133,175	129,215		133,175		129,215
Recurring [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	227,771	201,576		227,771		201,576
Recurring [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	25,144	24,751		25,144		24,751
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	0	0		0		0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	44,981	44,702		44,981		44,702
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	25,144	24,751		25,144		24,751
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	0	0		0		0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	200,130	194,692		200,130		194,692
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	133,175	129,215		133,175		129,215
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	227,771	201,576		227,771		201,576
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	2,964	3,236		2,964		3,236
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Mortgage Servicing Rights [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	2,797	3,030	3,235	3,236	2,968	2,968
Total recognized gains (losses) included in net income	118		(228)	(422)	(37)
Issues	167		146	388	443
Settlements	(118)		(123)	(238)	(344)
Ending balance	2,964	3,236	3,030	2,964	3,030	3,236
Total gains (losses) for the period included in net income attributable to the change in unrealized gains or losses related to assets still held at the reporting date	118		(228)	(422)	(37)
Nonrecurring [Member]
Impaired loan (collateral dependent) [Abstract]
Impaired loans, fair value adjustments	300	1,000	300	600	900	1,800
Other real estate owned [Abstract]
Other real estate /assets owned, fair value adjustment	400	500	$ 800	600	$ 1,100	1,700
Nonrecurring [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	4,824	3,192		4,824		3,192
Other real estate /assets owned	2,687	6,798		2,687		6,798
Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	0	0		0		0
Other real estate /assets owned	0	0		0		0
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	0	0		0		0
Other real estate /assets owned	0	0		0		0
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	4,824	3,192		4,824		3,192
Other real estate /assets owned	$ 2,687	$ 6,798		$ 2,687		$ 6,798

Fair Market Value of Financia42

Fair Market Value of Financial Assets and Liabilities, Quantitative Information about Level 3 Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Unobservable inputs [Abstract]
Constant prepayment rate	6.10%	6.10%
Probability of default	0.00%	0.00%
Discount rate	10.00%	10.00%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Unobservable inputs [Abstract]
Constant prepayment rate	26.20%	22.40%
Probability of default	100.00%	100.00%
Discount rate	11.00%	11.50%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Unobservable inputs [Abstract]
Constant prepayment rate	12.10%	10.00%
Probability of default	2.60%	2.60%
Discount rate	10.10%	10.10%
Mortgage Servicing Rights [Member] | Discount Cash Flows, Computer Pricing Model [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 2,964	$ 3,236
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Unobservable inputs [Abstract]
Marketability discount	0.00%	0.00%
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Unobservable inputs [Abstract]
Marketability discount	82.50%	76.70%
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Unobservable inputs [Abstract]
Marketability discount	25.70%	26.80%
Impaired Loans (Collateral Dependent) [Member] | Market Comparable Properties [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 4,824	$ 3,192
Other Real Estate/Asset Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Unobservable inputs [Abstract]
Comparability adjustments	10.00%	5.00%
Other Real Estate/Asset Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Unobservable inputs [Abstract]
Comparability adjustments	100.00%	51.80%
Other Real Estate/Asset Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Unobservable inputs [Abstract]
Comparability adjustments	18.10%	11.70%
Other Real Estate/Asset Owned [Member] | Market Comparable Properties [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 2,687	$ 6,798

Fair Market Value of Financia43

Fair Market Value of Financial Assets and Liabilities, Estimated Fair Value of Financial Instruments and Indication of Level Within Fair Value Hierarchy of Valuation Techniques (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financial assets [Abstract]
Available-for-sale securities	$ 631,201	$ 594,936
Securities held-to-maturity	1,182	1,651
Mortgage servicing rights	2,964	3,236
Carrying Amount [Member]
Financial assets [Abstract]
Cash and cash equivalents	121,178	187,611
Certificates of deposits in other banks	980	3,832
Available-for-sale securities	631,201	594,936
Securities held-to-maturity	1,181	1,661
Loans held for sale	2,075	1,172
Loans, net	2,895,498	2,837,867
Federal Home Loan Bank stock	17,927	17,927
Federal Reserve Bank stock	4,887	4,887
Accrued interest receivable	11,912	12,194
Mortgage servicing rights	2,964	3,236
Financial liabilities [Abstract]
Deposits	3,053,985	2,980,782
Repurchase agreements	262,295	251,225
Federal funds purchased	6,798	3,596
Advances from Federal Home Loan Bank	971	101,056
Long-term debt	61,341	61,341
Accrued interest payable	2,245	1,071
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	0	0
Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets [Abstract]
Cash and cash equivalents	121,178	187,611
Certificates of deposits in other banks	0	0
Available-for-sale securities	70,125	69,453
Securities held-to-maturity	0	0
Loans held for sale	2,119	1,196
Loans, net	0	0
Federal Home Loan Bank stock	0	0
Federal Reserve Bank stock	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	0	0
Financial liabilities [Abstract]
Deposits	763,187	749,975
Repurchase agreements	0	0
Federal funds purchased	0	0
Advances from Federal Home Loan Bank	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	0	0
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Certificates of deposits in other banks	983	3,836
Available-for-sale securities	561,076	525,483
Securities held-to-maturity	1,182	1,651
Loans held for sale	0	0
Loans, net	0	0
Federal Home Loan Bank stock	17,927	17,927
Federal Reserve Bank stock	4,887	4,887
Accrued interest receivable	11,912	12,194
Mortgage servicing rights	0	0
Financial liabilities [Abstract]
Deposits	2,299,370	2,208,120
Repurchase agreements	0	0
Federal funds purchased	6,798	3,596
Advances from Federal Home Loan Bank	1,044	100,905
Long-term debt	0	0
Accrued interest payable	2,245	1,071
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	0	0
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Certificates of deposits in other banks	0	0
Available-for-sale securities	0	0
Securities held-to-maturity	0	0
Loans held for sale	0	0
Loans, net	2,897,616	2,833,267
Federal Home Loan Bank stock	0	0
Federal Reserve Bank stock	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	2,964	3,236
Financial liabilities [Abstract]
Deposits	0	0
Repurchase agreements	262,208	250,873
Federal funds purchased	0	0
Advances from Federal Home Loan Bank	0	0
Long-term debt	49,073	49,073
Accrued interest payable	0	0
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	$ 0	$ 0

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator [Abstract]
Net income	$ 12,312	$ 11,222	$ 35,480	$ 34,562
Basic earnings per share [Abstract]
Weighted average shares (in shares)	17,554,000	17,440,000	17,532,000	17,420,000
Diluted earnings per share [Abstract]
Effect of dilutive stock options and restricted stock grants (in shares)	15,000	51,000	16,000	52,000
Adjusted weighted average shares (in shares)	17,569,000	17,491,000	17,548,000	17,472,000
Earnings per share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.70	$ 0.64	$ 2.02	$ 1.98
Diluted earnings per share (in dollars per share)	$ 0.70	$ 0.64	$ 2.02	$ 1.98
Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options excluded from diluted calculations (in shares)	0	0	15,730	0
Weighted average price for anti dilutive securities (in dollars per share)	$ 35.409	$ 0	$ 35.409	$ 0

Accumulated Other Comprehensi45

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains	$ 458	$ 12	$ 522	$ 142
Tax expense	5,223	3,724	14,106	13,084
Net income	12,312	11,222	35,480	34,562
Unrealized Gains (Losses) on AFS Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains	458	12	522	142
Tax expense	160	4	183	50
Net income	$ 298	$ 8	$ 339	$ 92