Astec Industries (ASTE) 10-K 1 Mar 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 06, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	ASTEC INDUSTRIES INC
Entity Central Index Key	792,987
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,271,340,000
Entity Common Stock, Shares Outstanding		23,046,049
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 82,371	$ 25,062
Investments	1,024	1,539
Trade receivables, net	106,659	98,865
Notes and other receivables	4,014	3,132
Inventories	360,404	384,776
Prepaid expenses	21,997	26,521
Other current assets	364	1,902
Total current assets	576,833	541,797
Property and equipment, net	180,538	170,206
Investments	13,965	11,540
Goodwill	40,804	30,835
Intangible assets, net	26,643	13,577
Deferred income tax assets	2,676	6,195
Other long-term assets	2,142	3,203
Total assets	843,601	777,353
Current liabilities:
Short-term debt	4,632	0
Current maturities of long-term debt	2,538	4,528
Accounts payable	57,297	48,385
Customer deposits	39,102	40,082
Accrued product warranty	13,156	9,100
Accrued payroll and related liabilities	25,693	17,375
Accrued loss reserves	2,852	2,838
Other accrued liabilities	23,591	19,704
Total current liabilities	168,861	142,012
Long-term debt	4,116	5,154
Deferred income tax liabilities	1,669	2,348
Other long-term liabilities	20,114	17,981
Total liabilities	194,760	167,495
Equity:
Preferred stock - authorized 4,000 shares of $1.00 par value; none issued	0	0
Common stock - authorized 40,000 shares of $0.20 par value; issued and outstanding - 23,046 in 2016 and 22,988 in 2015	4,609	4,598
Additional paid-in capital	139,970	137,883
Accumulated other comprehensive loss	(31,562)	(23,564)
Company shares held by SERP, at cost	(1,958)	(1,778)
Retained earnings	536,771	490,933
Shareholders' equity	647,830	608,072
Non-controlling interest	1,011	1,786
Total equity	648,841	609,858
Total liabilities and equity	$ 843,601	$ 777,353

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Dec. 31, 2016	Dec. 31, 2015
Equity:
Preferred stock, shares authorized (in shares)	4,000	4,000
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	40,000	40,000
Common stock, par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, shares issued (in shares)	23,046	22,988
Common stock, shares outstanding (in shares)	23,046	22,988

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Net sales	$ 1,147,431	$ 983,157	$ 975,595
Cost of sales	882,162	764,314	760,279
Gross profit	265,269	218,843	215,316
Selling, general and administrative expenses	153,145	145,180	141,490
Research and development expenses	24,969	23,676	22,129
Income from operations	87,155	49,987	51,697
Other income:
Interest expense	1,395	1,611	720
Interest income	806	542	1,422
Other income (expense), net	529	3,055	1,207
Income before income taxes	87,095	51,973	53,606
Income taxes	32,107	20,007	19,400
Net income	54,988	31,966	34,206
Net loss attributable to non-controlling interest	(171)	(831)	(252)
Net income attributable to controlling interest	$ 55,159	$ 32,797	$ 34,458
Net income attributable to controlling interest:
Basic (in dollars per share)	$ 2.40	$ 1.43	$ 1.51
Diluted (in dollars per share)	$ 2.38	$ 1.42	$ 1.49
Weighted average number of common shares outstanding:
Basic (in shares)	22,992	22,934	22,819
Diluted (in shares)	23,142	23,120	23,105

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 54,988	$ 31,966	$ 34,206
Other comprehensive loss:
Change in unrecognized pension and post-retirement benefit costs	(80)	(178)	(1,820)
Tax benefit on change in unrecognized pension and post-retirement benefit costs	29	36	699
Foreign currency translation adjustments	(2,420)	(13,848)	(7,670)
Tax (expense) benefit on foreign currency translation adjustments	(5,527)	3,341	770
Other comprehensive loss	(7,998)	(10,649)	(8,021)
Comprehensive loss attributable to non-controlling interest	(137)	(1,603)	(565)
Comprehensive income attributable to controlling interest	$ 47,127	$ 22,920	$ 26,750

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities
Net income	$ 54,988	$ 31,966	$ 34,206
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	20,818	20,744	21,343
Amortization	3,995	3,334	3,033
Provision for doubtful accounts	280	18	1,011
Provision for warranties	18,912	13,743	12,796
Deferred compensation provision	1,742	241	74
Deferred income tax benefit	(3,521)	(2,559)	(2,544)
Gain on disposition of fixed assets	(224)	(529)	(306)
Tax benefit from stock incentive plans	0	(345)	(586)
Stock-based compensation	2,936	1,250	1,200
Distributions to SERP participants	(532)	(2,986)	0
Change in operating assets and liabilities:
Sale (purchase) of trading securities, net	(1,873)	(405)	118
Trade and other receivables	(4,895)	3,163	(6,924)
Inventories	30,839	(6,499)	(41,933)
Prepaid expenses	4,846	(3,016)	(3,989)
Other assets	2,069	(968)	(4,763)
Accounts payable	8,836	(11,409)	10,755
Customer deposits	(762)	(3,697)	5,483
Accrued product warranty	(15,125)	(14,177)	(15,563)
Income taxes payable	181	(4,093)	(1,136)
Accrued retirement benefit costs	(50)	24	(201)
Accrued loss reserves	229	103	305
Other accrued liabilities	11,142	3,576	3,289
Other	(25)	3,387	3,195
Net cash provided by operating activities	134,806	30,866	18,863
Cash Flows from Investing Activities
Business acquisition, net of cash acquired	(39,764)	178	(34,965)
Proceeds from sale of property and equipment	614	10,054	743
Expenditures for property and equipment	(27,367)	(21,202)	(24,851)
Sale of investments	290	378	16,249
Net cash used by investing activities	(66,227)	(10,592)	(42,824)
Cash Flows from Financing Activities
Payment of dividends	(9,217)	(9,193)	(9,167)
Borrowings under bank loans	5,973	106,034	113,547
Repayment of bank loans	(5,903)	(104,567)	(103,188)
Proceeds from issuance of common stock	0	72	282
Tax benefit from stock option exercise	0	345	586
Sale (purchase) of shares of subsidiaries, net	(696)	(653)	1,428
Sale (purchase) of Company shares by SERP, net	(153)	2,084	(95)
Withholding tax paid upon vesting of restricted stock units	(1,024)	(600)	(953)
Proceeds from cash surrender value of life insurance	0	416	0
Net cash provided (used) by financing activities	(11,020)	(6,062)	2,440
Effect of exchange rates on cash	(250)	(2,173)	(1,020)
Increase (decrease) in cash and cash equivalents	57,309	12,039	(22,541)
Cash and cash equivalents, beginning of year	25,062	13,023	35,564
Cash and cash equivalents, end of year	82,371	25,062	13,023
Cash paid during the year for:
Interest	1,407	1,651	476
Income taxes, net of refunds	$ 28,455	$ 29,573	$ 23,027

CONSOLIDATED STATEMENTS OF EQUI

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Company Shares Held by SERP [Member]	Retained Earnings [Member]	Non-Controlling Interest [Member]	Total
Balance at Dec. 31, 2013	$ 4,572	$ 134,730	$ (4,894)	$ (2,786)	$ 442,054	$ 3,635	$ 577,311
Balance (in shares) at Dec. 31, 2013	22,859
Net income					34,458	(252)	34,206
Quarterly dividends		8			(9,175)		(9,167)
Other comprehensive loss			(8,021)			565	(7,456)
Change in ownership percent of subsidiary						(1,345)	(1,345)
Capital contributed by minority shareholder						1,583	1,583
Stock-based compensation	$ 1	1,199					1,200
Stock-based compensation (in shares)	5
Exercise of stock options and RSU vesting, including tax benefit	$ 13	855					868
Exercise of stock options and RSU vesting, including tax benefit (in shares)	66
Withholding tax on vested RSUs		(953)					(953)
Sale of Company stock held by SERP, net		48		(143)			(95)
Balance at Dec. 31, 2014	$ 4,586	135,887	(12,915)	(2,929)	467,337	4,186	596,152
Balance (in shares) at Dec. 31, 2014	22,930
Net income					32,797	(831)	31,966
Quarterly dividends		8			(9,201)		(9,193)
Other comprehensive loss			(10,649)			(772)	(11,421)
Change in ownership percent of subsidiary						(663)	(663)
Stock-based compensation	$ 1	1,249					1,250
Stock-based compensation (in shares)	4
Exercise of stock options and RSU vesting, including tax benefit	$ 11	406					417
Exercise of stock options and RSU vesting, including tax benefit (in shares)	54
Withholding tax on vested RSUs		(600)					(600)
Sale of Company stock held by SERP, net		933		1,151			2,084
Other						(134)	(134)
Balance at Dec. 31, 2015	$ 4,598	137,883	(23,564)	(1,778)	490,933	1,786	$ 609,858
Balance (in shares) at Dec. 31, 2015	22,988						22,988
Net income					55,159	(171)	$ 54,988
Quarterly dividends		9			(9,226)		(9,217)
Other comprehensive loss			(7,998)			34	(7,964)
Change in ownership percent of subsidiary						(1,322)	(1,322)
Stock-based compensation	$ 1	2,935					2,936
Stock-based compensation (in shares)	5
Exercise of stock options and RSU vesting, including tax benefit	$ 10	(10)					0
Exercise of stock options and RSU vesting, including tax benefit (in shares)	53
Withholding tax on vested RSUs		(1,024)					(1,024)
Sale of Company stock held by SERP, net		27		(180)			(153)
Other						684	684
Balance at Dec. 31, 2016	$ 4,609	139,970	$ (31,562)	$ (1,958)	536,771	$ 1,011	$ 648,841
Balance (in shares) at Dec. 31, 2016	23,046						23,046
Cumulative effect of adopting ASU No. 2016-09		$ 150			$ (95)		$ 55

CONSOLIDATED STATEMENTS OF EQU8

CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
CONSOLIDATED STATEMENTS OF EQUITY [Abstract]
Common stock dividends (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies Basis of Presentation Astec Australia Pty Ltd Astec do Brasil Fabricacao de Equipamentos Ltda. (92% owned) Astec, Inc. Astec Insurance Company Astec Mobile Machinery GmbH Astec Mobile Screens, Inc. Breaker Technology, Inc. Breaker Technology Ltd. Carlson Paving Products, Inc. CEI Enterprises, Inc. GEFCO, Inc. Heatec, Inc. Johnson Crushers International, Inc. Kolberg-Pioneer, Inc. Osborn Engineered Products SA (Pty) Ltd Peterson Pacific Corp. (99% owned) Power Flame Incorporated Roadtec, Inc. Telestack Limited Telsmith, Inc. All intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates Foreign Currency Translation Fair Value of Financial Instruments Financial assets and liabilities are categorized as of the end of each reporting period based upon the level of judgment associated with the inputs used to measure their fair value. The inputs used to measure the fair value are identified in the following hierarchy: Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 - Unadjusted quoted prices in active markets for similar assets or liabilities; or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs other than quoted prices that are observable for the asset or liability. Level 3 - Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model. All financial assets and liabilities held by the Company at December 31, 2016 and 2015 are classified as Level 1 or Level 2, as summarized in Note 3, Fair Value Measurements. Cash and Cash Equivalents Investments Concentration of Credit Risk Allowance for Doubtful Accounts Year Ended December 31 2016 2015 2014 Allowance balance, beginning of year $ 1,837 $ 2,248 $ 1,708 Provision 280 18 1,011 Write offs (560 ) (357 ) (465 ) Other (46 ) (72 ) (6 ) Allowance balance, end of year $ 1,511 $ 1,837 $ 2,248 Inventories Raw material inventory is comprised of purchased steel and other purchased items for use in the manufacturing process or held for sale for the after-market parts business. The category also includes the manufacturing cost of completed equipment sub-assemblies produced for either integration into equipment manufactured at a later date or for sale in the Company’s after-market parts business. Work-in-process inventory consists of the value of materials, labor and overhead incurred to date in the manufacturing of incomplete equipment or incomplete equipment sub-assemblies being produced. Finished goods inventory consists of completed equipment manufactured for sale to customers. Used equipment inventory consists of equipment accepted in trade or purchased on the open market. The category also includes equipment rented to prospective customers on a short-term or month-to-month basis. Used equipment is valued at the lower of acquired or trade-in cost or net realizable value determined on each separate unit. Each unit of rental equipment is valued at its original manufacturing cost and is reduced by an appropriate reserve each month during the period of time the equipment is rented. Inventories are valued at the lower of cost (first-in, first-out) or net realizable value, which requires the Company to make specific estimates, assumptions and judgments in determining the amount, if any, of reductions in the valuation of inventories to their net realizable values. The net realizable values of the Company’s products are impacted by a number of factors, including changes in the price of steel, competitive sales pricing, quantities of inventories on hand, the age of the individual inventory items, market acceptance of the Company’s products, the Company’s normal gross margins, actions by our competitors, the condition of our used and rental inventory and general economic factors. Once an inventory item’s value has been deemed to be less than cost, a net realizable value allowance is calculated and a new “cost basis” for that item is effectively established. This new cost is retained for that item until such time as the item is disposed of or the Company determines that an additional write-down is necessary. Additional write-downs may be required in the future based upon changes in assumptions due to general economic downturns in the markets in which the Company operates, changes in competitor pricing, new product design or other technological advances introduced by the Company or its competitors and other factors unique to individual inventory items. The most significant component of the Company’s inventory is steel. A significant decline in the market price of steel could result in a decline in the market value of the equipment or parts we sell. During periods of significant declining steel prices, the Company reviews the valuation of its inventories to determine if reductions are needed in the recorded value of inventory on hand to its net realizable value. The Company reviews the individual items included in its finished goods, used equipment and rental equipment inventory on a model-by-model or unit-by-unit basis to determine if any item’s net realizable value is below its carrying value. This analysis is expanded to include items in work-in-process and raw material inventory if factors indicate those items may also be impacted. In performing this review, judgments are made and, in addition to the factors discussed above, additional consideration is given to the age of the specific items of used or rental inventory, prior sales offers or lack thereof, the physical condition of the specific items and general market conditions for the specific items. Additionally, an analysis of raw material inventory is performed to calculate reserves needed for obsolete inventory based upon quantities of items on hand, the age of those items and their recent and expected future usage or sale. When the Company determines that the value of inventory has become impaired through damage, deterioration, obsolescence, changes in price levels, excessive levels of inventory or other causes, the Company reduces the carrying value to the net realizable value based on estimates, assumptions and judgments made from the information available at that time. Abnormal amounts of idle facility expense, freight, handling cost and wasted materials are recognized as current period charges. Property and Equipment Goodwill and Other Intangible Assets The Company tests intangible assets with definite lives for impairment if conditions exist that indicate the carrying value may not be recoverable. Such conditions may include an economic downturn in a geographic market or a change in the assessment of future operations. An impairment charge is recorded when the carrying value of the definite lived intangible asset is not recoverable by the future undiscounted cash flows expected to be generated from the use of the asset. The Company determines the useful lives of identifiable intangible assets after considering the specific facts and circumstances related to each intangible asset. Factors considered when determining useful lives include the contractual terms of agreements, the history of the asset, the Company’s long-term strategy for the use of the asset, any laws or other local regulations which could impact the useful life of the asset, and other economic factors, including competition and specific market conditions. Intangible assets that are deemed to have definite lives are amortized over their useful lives, as follows: dealer network and customer relationships: 8-19 years; trade names: 15 years; other: 6-19 years. Goodwill is not amortized. The Company tests goodwill for impairment annually or more frequently if events or circumstances indicate that goodwill might be impaired. The tests utilize a two-step method at the reporting unit level. The Company’s reporting units are typically defined as either subsidiaries or a combination of subsidiaries. The first step of the goodwill impairment test compares book value of a reporting unit, including goodwill, with the unit’s fair value. In this first step, the Company estimates the fair values of each of its reporting units that have goodwill using the income approach. The income approach uses a reporting unit’s projection of estimated future operating results and cash flows which are then discounted using a weighted average cost of capital determined based on current market conditions for the individual reporting unit. The projection uses management’s best estimates of cash flows over the projection period based on estimates of annual and terminal growth rates in sales and costs, changes in operating margins, selling, general and administrative expenses, working capital requirements and capital expenditures. The fair value of reporting units that do not have goodwill are estimated using either the income or market approaches, depending on which approach is to be the most appropriate for each reporting unit. The fair value of the reporting units that serve operating units in supporting roles, such as the captive insurance company and the corporate reporting unit are estimated using the cost approach. The sum of the fair values of all reporting units is compared to the fair value of the consolidated Company, calculated using the market approach, which is inferred from the market capitalization of the Company at the date of the valuation, to confirm that the Company’s estimation of the fair value of its reporting units is reasonable. If the book value of a reporting unit exceeds its fair value, an indication of possible goodwill impairment, the second step of the impairment test must be performed to determine the amount, if any, of goodwill impairment. In this second step, the total implied fair value of the reporting unit’s goodwill is estimated by allocating the fair value of the reporting unit to all its assets, including any unrecognized intangible assets and liabilities other than goodwill. The difference between the total fair value of the reporting unit and the fair value of its assets and liabilities other than goodwill is the implied fair value of its goodwill. The amount of any impairment loss is equal to the excess, if any, of the book value of the goodwill over the implied fair value of its goodwill. Determining the “step one” fair values of the Company’s reporting units involves the use of significant estimates and assumptions. Due to the inherent uncertainty involved in making these estimates and assumptions, actual results could differ materially from those estimates. Impairment of Long-lived Assets Self-Insurance Reserves For general liability claims, the captive is liable for the first $1,000 per occurrence and $3,000 per year in the aggregate. The Company carries general liability, excess liability and umbrella policies for claims in excess of amounts covered by the captive. For workers’ compensation claims, the captive is liable for the first $350 per occurrence and $3,250 per year in the aggregate. The Company utilizes a large national insurance company as third party administrator for workers’ compensation claims and carries insurance coverage for claims liabilities in excess of amounts covered by the captive. The financial statements of the captive are consolidated into the financial statements of the Company. The short-term and long-term reserves for claims and potential claims related to general liability and workers’ compensation under the captive are included in accrued loss reserves or other long-term liabilities, respectively, in the consolidated balance sheets depending on the expected timing of future payments. The undiscounted reserves are actuarially determined to cover the ultimate cost of each claim based on the Company’s evaluation of the type and severity of individual claims and historical information, primarily its own claims experience, along with assumptions about future events. Changes in assumptions, as well as changes in actual experience, could cause these estimates to change in the future. However, the Company does not believe it is reasonably likely that the reserve level will materially change in the foreseeable future. The Company is self-insured for health and prescription claims under its Group Health Insurance Plan at all but one of the Company’s domestic manufacturing subsidiaries. The Company carries reinsurance coverage to limit its exposure for individual health claims above certain limits. Third parties administer health claims and prescription medication claims. The Company maintains a reserve for the self-insured health plan which is included in accrued loss reserves on the Company’s consolidated balance sheets. This reserve includes both unpaid claims and an estimate of claims incurred but not reported, based on historical claims and payment experience. Historically the reserves have been sufficient to provide for claims payments. Changes in actual claims experience or payment patterns could cause the reserve to change, but the Company does not believe it is reasonably likely that the reserve level will materially change in the near future. The remaining U.S. subsidiary is covered under a fully insured group health plan. Employees of the Company’s foreign subsidiaries are insured under separate health plans. No reserves are necessary for these fully insured health plans. Revenue Recognition Certain contracts include terms and conditions pursuant to which the Company recognizes revenues upon completion of equipment production, which is subsequently stored at the Company’s plant at the customer’s request. Revenue is recorded on such contracts upon the customer’s assumption of title and risk of ownership and when collectability is reasonably assured. In addition, there must be a fixed schedule of delivery of the goods consistent with the customer’s business practices, the Company must not have retained any specific performance obligations such that the earnings process is not complete and the goods must have been segregated from the Company’s inventory prior to revenue recognition. The Company has certain sales accounted for as multiple-element arrangements, whereby revenue attributable to the sale of a product is recognized when the product is shipped, and the revenue attributable to services provided with respect to the product (such as installation services) is recognized when the service is performed. Consideration is allocated to deliverables using the relative selling price method using vendor specific objective evidence, if it exists. Otherwise, the Company uses third-party evidence of selling price or the Company’s best estimate of the selling price for the deliverables. The Company evaluates sales with multiple deliverable elements (such as an agreement to deliver equipment and related installation services) to determine whether revenue related to individual elements should be recognized separately, or as a combined unit. In addition to the previously mentioned general revenue recognition criteria, the Company only recognizes revenue on individual delivered elements when there is objective and reliable evidence that the delivered element has a determinable value to the customer on a standalone basis and there is no right of return. The Company has certain sales accounted for under the percentage of completion method using the ratio of costs incurred to estimated total costs. Revenue, in an amount equal to cost incurred, is recognized until there is sufficient information to determine the estimated profit on the project with a reasonable level of certainty. The factors considered in this evaluation include the stage of design completion, the stage of equipment manufacturing completion, the state of construction completion, the status of outstanding subcontracts, certainty of quantities of labor and materials, certainty of schedule and the relationship with the customer. The Company presents in the consolidated statements of income any taxes assessed by a governmental authority that are directly imposed on revenue-producing transactions between the Company and its customers, such as sales, use, value-added and some excise taxes, on a net (excluded from revenue) basis. Advertising Expense Income Taxes The Company evaluates a tax position to determine whether it is more likely than not that the tax position will be sustained upon examination, based upon the technical merits of the position. A tax position that meets the more-likely-than-not recognition threshold is subject to a measurement assessment to determine the amount of benefit to recognize and the appropriate reserve to establish, if any. If a tax position does not meet the more-likely-than-not recognition threshold, no benefit is recognized. The Company is periodically audited by U.S. federal and state as well as foreign tax authorities. While it is often difficult to predict final outcome or timing of resolution of any particular tax matter, the Company believes its reserve for uncertain tax positions is adequate to reduce the uncertain positions to the greatest amount of benefit that is more likely than not realizable. Product Warranty Reserve The Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of our component suppliers. Estimated warranty obligations are based upon warranty terms, product failure rates, repair costs and current period machine shipments. If actual product failure rates, repair costs, service delivery costs or post-sales support costs differ from our estimates, revisions to the estimated warranty liability may be required. Pension and Retirement Plans The Company recognizes the overfunded or underfunded status of its pension plan as an asset or liability. Actuarial gains and losses, amortization of prior service cost (credit) and amortization of transition obligations are recognized through other comprehensive income in the year in which the changes occur. The Company measures the funded status of its pension plan as of the date of the Company’s fiscal year-end. Stock-based Compensation Earnings Per Share The following table sets forth a reconciliation of the number of shares used in the computation of basic and diluted earnings per share: Year Ended December 31 2016 2015 2014 Denominator: Denominator for basic earnings per share 22,992 22,934 22,819 Effect of dilutive securities: Employee stock options and restricted stock units 85 123 176 Supplemental executive retirement plan 65 63 110 Denominator for diluted earnings per share 23,142 23,120 23,105 Antidilutive options were not included in the diluted earnings per share computation for the years presented. The number of antidilutive options in each of the three years ended December 31, 2016 was not material. Derivatives and Hedging Activities Shipping and Handling Fees and Cost Business Combinations Subsequent Events Review Recent Accounting Pronouncements In July 2015, the FASB issued ASU No. 2015-11, "Inventory (Topic 330): Simplifying the Measurement of Inventory", which changes the measurement basis for inventory from the lower of cost or market to lower of cost and net realizable value and also eliminates the requirement for companies to consider replacement cost or net realizable value less an approximate normal profit margin when determining the recorded value of inventory. The standard is effective for public companies in fiscal years beginning after December 15, 2016. The Company early adopted the standard effective October 1, 2016. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments - Overall (Subtopic 825-10)”, which requires, among other things, equity investments with readily determinable fair values, except those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income. The standard is effective for public companies in fiscal years beginning after December 15, 2017, and the Company expects to adopt the standard effective January 1, 2018. The Company has not yet determined what impact, if any, the adoption of this new standard will have on the Company's financial position or results of operations. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)”, which significantly changes the accounting for operating leases by lessees. The accounting applied by lessors is largely unchanged from that applied under previous guidance. The new guidance requires lessees to recognize lease assets and lease liabilities in the balance sheet, initially measured at the present value of the lease payments, for leases which were classified as operating leases under previous guidance. Lease cost included in the statement of income will be calculated so that the cost of the lease is allocated over the lease term, generally on a straight-line basis. Lessees may make an accounting policy election to exclude leases with a term of 12 months or less from the requirement to record related assets and liabilities. The new standard is effective for public companies for fiscal years beginning after December 15, 2018. The Company plans to adopt the new standard effective January 1, 2019. The Company does not expect the adoption of this standard to have a material impact on its results of operations; however, the Company has not determined the impact the adoption of this new standard will have on its financial position. In March 2016, the FASB issued ASU No. 2016-08, “Revenue from Contracts with Customers (Topic 606)”, which does not change the core principles of ASU No. 2014-09 discussed above, but rather clarifies the implementation guidance in order to eliminate the potential for diversity in practice arising from inconsistent application of the principal versus agent guidance. Under the new guidance, when an entity determines it is a principal in a transaction, the entity recognizes revenue in the gross amount of consideration; however in transactions where an entity determines it in an agent, the entity recognizes revenue in the amount of any fee or commission to which it expects to be entitled. The standard is effective for public companies for annual periods beginning after December 15, 2017. The Company plans to adopt the new standard effective January 1, 2018. The Company has not yet determined what impact, if any, the adoption of this new standard will have on the Company's financial position or results of operations. In March 2016, the FASB issued ASU No. 2016-09, “Compensation - Stock Compensation (Topic 718)”, as part of its Simplification Initiative. The standard’s provisions impact several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification in the statement of cash flows. The standard is effective for public companies for annual periods beginning after December 15, 2016, with early adoption permitted. The Company adopted the new standard effective January 1, 2016 and has recorded a cumulative effect adjustment in retained earnings as of January 1, 2016 of $95, net of tax, related to the adoption of the new provisions allowing for restricted stock unit forfeitures to be accounted for at the time they occur as opposed to being estimated during the vesting period. Additionally, income tax benefits of $220, which would have been recorded in additional paid-in capital under prior guidance, have been recorded in 2016 consolidated income related to excess tax benefits resulting from the vesting of restricted stock units in 2016. As allowed under the provision’s guidelines, amounts for 2015 have not been restated in the accompanying financial statements. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments”. The standard changes how credit losses are measured for most financial assets and certain other instruments that currently are not measured through net income. The standard will require an expected loss model for instruments measured at amortized cost as opposed to the current incurred loss approach. In valuing available for sale debt securities, allowances will be required to be recorded, rather than the current approach of reducing the carrying amount, for other than temporary impairments. A cumulative adjustment to retained earnings is to be recorded as of the beginning of the period of adoption to reflect the impact of applying the provisions of the standard. The standard is effective for public companies for periods beginning after December 15, 2019 and the Company expects to adopt the new standard as of January 1, 2020. The Company has not yet determined what impact, if any, the adoption of this new standard will have on the Company's financial position or results of operations. In August 2016, the FASB issued ASU No. 2016-15, “Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force)” which clarifies how certain cash receipts and cash payments should be presented on the statement of cash flows. The statement also addresses how the predominance principle should be applied when cash payments have aspects of more than one class of cash flows. In October 2016, the FASB issued ASU No. 2016-16, “Intra-Entity Transfers of Assets Other Than Inventory” which requires companies to account for the income tax effects of intercompany sales and transfers of assets other than inventory, such as intangible assets, when the transfer occurs. This is a change from current guidance, which requires companies to defer the income tax effects of intercompany transfers of assets until the asset has been sold to an outside party or otherwise recognized by being depreciated, amortized, or impaired. The new guidance will require companies to defer the income tax effects of only intercompany transfers of inventory. The standard is effective for public companies in fiscal years beginning after December 15, 2018. Early adoption is permitted as of the beginning of an annual period and requires companies to apply a modified retrospective approach.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2016
Inventories [Abstract]
Inventories	2. Inventories Inventories consist of the following: December 31 2016 2015 Raw materials and parts $ 137,763 $ 141,967 Work-in-process 115,613 113,859 Finished goods 84,898 104,879 Used equipment 22,130 24,071 Total $ 360,404 $ 384,776

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Fair Value Measurements [Abstract]
Fair Value Measurements	3. Fair Value Measurements The Company has various financial instruments that must be measured at fair value on a recurring basis, including marketable debt and equity securities held by Astec Insurance, and marketable equity securities held in an unqualified Supplemental Executive Retirement Plan (“SERP”). The financial assets held in the SERP also constitute a liability of the Company for financial reporting purposes. The Company’s subsidiaries also occasionally enter into foreign currency exchange contracts to mitigate exposure to fluctuations in currency exchange rates. For cash and cash equivalents, trade receivables, other receivables, revolving debt and accounts payable, the carrying amount approximates the fair value because of the short-term nature of these instruments. Investments are carried at their fair value based on quoted market prices for identical or similar assets or, where no quoted prices exist, other observable inputs for the asset. The fair values of foreign currency exchange contracts are based on quotations from various banks for similar instruments using models with market based inputs. As indicated in the tables below, the Company has determined that its financial assets and liabilities at December 31, 2016 and 2015 are level 1 and level 2 in the fair value hierarchy: December 31, 2016 Level 1 Level 2 Level 3 Total Financial Assets: Trading equity securities: SERP money market fund $ 92 $ -- $ -- $ 92 SERP mutual funds 3,335 -- -- 3,335 Preferred stocks 475 -- -- 475 Trading debt securities: Corporate bonds 5,413 -- -- 5,413 Municipal bonds -- 2,248 -- 2,248 Floating rate notes 118 -- -- 118 U.S. Treasury bills 388 -- -- 388 Asset backed securities -- 637 -- 637 Other -- 2,283 -- 2,283 Derivative financial instruments -- 144 -- 144 Total financial assets $ 9,821 $ 5,312 $ -- $ 15,133 Financial Liabilities: SERP liabilities $ -- $ 7,882 $ -- $ 7,882 Derivative financial instruments -- 89 -- 89 Total financial liabilities $ -- $ 7,971 $ -- $ 7,971 December 31, 2015 Level 1 Level 2 Level 3 Total Financial Assets: Trading equity securities: SERP money market fund $ 445 $ -- $ -- $ 445 SERP mutual funds 2,864 -- -- 2,864 Preferred stocks 742 -- -- 742 Trading debt securities: Corporate bonds 3,756 141 -- 3,897 Municipal bonds -- 1,811 -- 1,811 Floating rate notes 84 -- -- 84 U.S. Treasury bills 404 -- -- 404 Savings bonds 77 -- -- 77 Other -- 2,755 -- 2,755 Derivative financial instruments -- 1,265 -- 1,265 Total financial assets $ 8,372 $ 5,972 $ -- $ 14,344 Financial Liabilities: SERP liabilities $ -- $ 5,869 $ -- $ 5,869 Derivative financial instruments -- 22 -- 22 Total financial liabilities $ -- $ 5,891 $ -- $ 5,891 The Company reevaluates the volume of trading activity for each of its investments at the end of each reporting period and adjusts the level within the fair value hierarchy as needed.

Investments

Investments	12 Months Ended
	Dec. 31, 2016
Investments [Abstract]
Investments	4. Investments The Company’s trading securities consist of the following: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (Net Carrying Amount) December 31, 2016 Trading equity securities $ 3,980 $ 40 $ 118 $ 3,902 Trading debt securities 11,312 23 248 11,087 Total $ 15,292 $ 63 $ 366 $ 14,989 December 31, 2015 Trading equity securities $ 4,160 $ 79 $ 188 $ 4,051 Trading debt securities 9,263 37 272 9,028 Total $ 13,423 $ 116 $ 460 $ 13,079 Trading equity investments are valued at their estimated fair value based on their quoted market prices and trading debt securities are valued based upon a mix of observable market prices and model driven prices derived from a matrix of observable market prices for assets with similar characteristics obtained from a nationally recognized third party pricing service. Additionally, a significant portion of the trading equity securities are in equity money market and mutual funds and also comprise a portion of the Company’s liability under its SERP. See Note 12, Pension and Retirement Plans, for additional information on these investments and the SERP. Trading debt securities are comprised mainly of marketable debt securities held by Astec Insurance. Astec Insurance has an investment strategy that focuses on providing regular and predictable interest income from a diversified portfolio of high-quality fixed income securities. Net unrealized gains or losses incurred on investments still held as of the end of each reporting period amounted to losses of $107, $429 and $17 in 2016, 2015 and 2014, respectively.

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2016
Goodwill [Abstract]
Goodwill	5. Goodwill Goodwill represents the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations. Current U.S. accounting guidance provides that goodwill and indefinite-lived intangible assets be tested for impairment at least annually. The Company performs the required valuation procedures each year as of December 31 after the following year’s forecasts are submitted and reviewed. The valuations performed in 2016, 2015 and 2014 indicated no impairment of goodwill. The changes in the carrying amount of goodwill by reporting segment during the years ended December 31, 2016 and 2015 are as follows: Infrastructure Group Aggregate and Mining Group Energy Group Corporate Total Balance, December 31, 2014 $ 8,584 $ 23,411 $ -- $ -- $ 31,995 Purchase price adjustment -- (178 ) -- -- (178 ) Foreign currency translation (103 ) (879 ) -- -- (982 ) Balance, December 31, 2015 8,481 22,354 -- -- 30,835 Acquisition -- -- 12,632 -- 12,632 Foreign currency translation (33 ) (2,630 ) -- -- (2,663 ) Balance, December 31, 2016 $ 8,448 $ 19,724 $ 12,632 $ -- $ 40,804

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2016
Intangible Assets [Abstract]
Intangible Assets	6. Intangible Assets Intangible assets consisted of the following at December 31, 2016 and 2015: 2016 2015 Gross Carrying AccumulatedAmortization Net Carrying Gross Carrying AccumulatedAmortization Net Carrying Dealer network and customer relationships $ 26,035 $ 7,584 $ 18,451 $ 13,111 $ 5,552 $ 7,559 Trade names 7,021 1,362 5,659 4,857 956 3,901 Other 5,764 3,231 2,533 4,966 2,849 2,117 Total $ 38,820 $ 12,177 $ 26,643 $ 22,934 $ 9,357 $ 13,577 Amortization expense on intangible assets was $3,562, $2,953 and $2,735 for 2016, 2015 and 2014, respectively. Intangible asset amortization expense is expected to be $3,514, $3,246, $2,717, $2,531 and $2,329 in the years ending December 31, 2017, 2018, 2019, 2020 and 2021 respectively, and $12,306 thereafter.

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2016
Property and Equipment [Abstract]
Property and Equipment	7. Property and Equipment Property and equipment consist of the following: December 31 2016 2015 Land $ 14,768 $ 12,628 Building and land improvements 140,229 132,353 Manufacturing and office equipment 231,816 214,545 Aviation equipment 14,169 14,151 Less accumulated depreciation (220,444 ) (203,471 ) Total $ 180,538 $ 170,206 Depreciation expense was $20,818, $20,744 and $21,343 for the years ended December 31, 2016, 2015 and 2014, respectively. In October 2015, the Company recorded the sale of its Astec Underground facility for a net sales price of $9,599. The cost of closing the facility totaled $1,500, with $999 recorded in cost of sales and $501 in selling, general and administrative expenses in the year ended December 31, 2015.

Leases

Leases	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Leases	8. Leases The Company leases certain land, buildings and equipment for use in its operations under various operating leases. Total rental expense charged to operations under operating leases was approximately $2,792, $2,786 and $2,544 for the years ended December 31, 2016, 2015 and 2014, respectively. Minimum rental commitments for all noncancelable operating leases at December 31, 2016 are as follows: 2017 $ 1,337 2018 978 2019 669 2020 465 2021 177 Thereafter 21 $ 3,647

Debt

Debt	12 Months Ended
	Dec. 31, 2016
Debt [Abstract]
Debt	9. Debt On April 12, 2012, the Company and certain of its subsidiaries entered into an amended and restated credit agreement with Wells Fargo whereby Wells Fargo extended to the Company an unsecured line of credit of up to $100,000, including a sub-limit for letters of credit of up to $25,000. There were no outstanding revolving or term loan borrowings under the credit facility at December 31, 2016 or 2015. Letters of credit totaling $8,876 were outstanding under the credit facility as of December 31, 2016, resulting in additional borrowing ability of $91,124 on the credit facility as of December 31, 2016. The amended and restated agreement has a five-year term expiring in April 2017. Borrowings under the agreement are subject to an interest rate equal to the daily one-month LIBOR rate plus a 0.75% margin, resulting in a rate of 1.53% at December 31, 2016. The unused facility fee is 0.175%. Interest only payments are due monthly. The credit agreement contains certain financial covenants, including provisions concerning required levels of annual net income, minimum tangible net worth and maximum allowed capital expenditures. The Company’s South African subsidiary, Osborn Engineered Products SA (Pty) Ltd (“Osborn”), has a bank overdraft facility of $6,913 to finance short-term working capital needs, as well as to cover performance letters of credit, advance payment and retention guarantees. As of December 31, 2016, Osborn had $4,632 in short-term borrowings and $904 in performance, advance payment and retention guarantees outstanding under the facility. The facility is guaranteed by Astec Industries, Inc. The overdraft’s 0.75% unused facility fee is waived if 50% or more of the facility is utilized. As of December 31, 2016, Osborn had available credit under the facility of $1,377. The interest rate is 0.25% less than the South Africa prime rate, resulting in a rate of 10.50% as of December 31, 2016. The Company's Brazilian subsidiary, Astec do Brasil Fabricacao de Equipamentos Ltda. ("Astec Brazil"), has outstanding working capital loans totaling $5,485 from a Brazilian bank with interest rates ranging from 10.4% to 11.0%. The loans have maturity dates ranging from November 2018 to April 2024 and are secured by letters of credit totaling $6,200 issued by Astec Industries, Inc. Additionally, Astec Brazil has various five-year equipment financing loans outstanding with other Brazilian banks in the aggregate of $1,169 as of December 31, 2016 that have interest rates ranging from 3.5% to 16.3%. These equipment loans have maturity dates ranging from September 2018 to April 2020. Astec Brazil's loans are included in the accompanying balance sheets as current maturities of long-term debt of $2,538 and long-term debt of $4,116 as of December 31, 2016. Long-term debt maturities are expected to be $2,538, $2,513, $492, $259 and $256 in the years ending December 31, 2017, 2018, 2019, 2020 and 2021, respectively, and $596 thereafter.

Product Warranty Reserves

Product Warranty Reserves	12 Months Ended
	Dec. 31, 2016
Product Warranty Reserves [Abstract]
Product Warranty Reserves	10. Product Warranty Reserves The Company warrants its products against manufacturing defects and performance to specified standards. The warranty period and performance standards vary by product, but generally range from three months to two years or up to a specified number of hours of operation. The Company estimates the costs that may be incurred under its warranties and records a liability at the time product sales are recorded. The warranty liability is primarily based on historical claim rates, nature of claims and the associated costs. Changes in the Company’s product warranty liability during 2016, 2015 and 2014 are as follows: 2016 2015 2014 Reserve balance, beginning of year $ 9,100 $ 10,032 $ 12,716 Warranty liabilities accrued 18,912 13,743 12,796 Warranty liabilities settled (15,125 ) (14,177 ) (15,563 ) Other 269 (498 ) 83 Reserve balance, end of year $ 13,156 $ 9,100 $ 10,032

Accrued Loss Reserves

Accrued Loss Reserves	12 Months Ended
	Dec. 31, 2016
Accrued Loss Reserves [Abstract]
Accrued Loss Reserves	11. Accrued Loss Reserves The Company accrues reserves for losses related to known workers’ compensation and general liability claims that have been incurred but not yet paid or are estimated to have been incurred but not yet reported to the Company. The undiscounted reserves are actuarially determined based on the Company’s evaluation of the type and severity of individual claims and historical information, primarily its own claim experience, along with assumptions about future events. Changes in assumptions, as well as changes in actual experience, could cause these estimates to change in the future. Total accrued loss reserves at December 31, 2016 were $7,892 and $7,663 at December 31, 2015, of which $5,04 0

Pension and Retirement Plans

Pension and Retirement Plans	12 Months Ended
	Dec. 31, 2016
Pension and Retirement Plans [Abstract]
Pension and Retirement Plans	12. Pension and Retirement Plans Prior to December 31, 2003, all employees of the Company’s Kolberg-Pioneer, Inc. subsidiary were covered by a defined benefit pension plan. After December 31, 2003, all benefit accruals under the plan ceased and no new employees could become participants in the plan. Benefits paid under this plan are based on years of service multiplied by a monthly amount. The Company’s funding policy for the plan is to make at least the minimum annual contributions required by applicable regulations. The Company’s investment strategy for the plan is to earn a rate of return sufficient to match or exceed the long-term growth of pension liabilities. The investment policy states that the Plan Committee in its sole discretion shall determine the allocation of plan assets among the following four asset classes: cash equivalents, fixed-income securities, domestic equities and international equities. The Plan Committee attempts to ensure adequate diversification of the invested assets through investment in an exchange traded mutual fund that invests in a diversified portfolio of stocks, bonds and money market securities. The following provides information regarding benefit obligations, plan assets and the funded status of the plan: Pension Benefits 2016 2015 Change in benefit obligation Benefit obligation, beginning of year $ 15,565 $ 15,986 Interest cost 650 596 Actuarial (gain)/loss 514 (417 ) Benefits paid (625 ) (600 ) Benefit obligation, end of year 16,104 15,565 Accumulated benefit obligation 16,104 15,565 Change in plan assets Fair value of plan assets, beginning of year 12,688 13,283 Actual gain/(loss) on plan assets 763 (279 ) Employer contribution 415 284 Benefits paid (625 ) (600 ) Fair value of plan assets, end of year 13,241 12,688 Funded status, end of year $ (2,863 ) $ (2,877 ) Amounts recognized in the consolidated balance sheets Noncurrent liabilities $ (2,863 ) $ (2,877 ) Net amount recognized $ (2,863 ) $ (2,877 ) Amounts recognized in accumulated other comprehensive loss consist of Net loss $ 6,152 $ 6,098 Net amount recognized $ 6,152 $ 6,098 Weighted average assumptions used to determine benefit obligations as of December 31 Discount rate 4.00 % 4.28 % Expected return on plan assets 6.25 % 7.00 % Rate of compensation increase N/A N/A The measurement date used for the plan was December 31. In determining the expected return on plan assets, the historical experience of the plan assets, the current and expected allocation of the plan assets and the expected long-term rates of return were considered. All assets in the plan are invested in an exchange traded mutual fund (level 1 in the fair value hierarchy). The allocation of assets within the mutual fund as of December 31 and the target asset allocation ranges by asset category are as follows: Actual Allocation Asset Category 2016 2015 2016 & 2015 Target Allocation Ranges Equity securities 63.6 % 66.0 % 53 - 73 % Debt securities 33.5 % 30.7 % 21 - 41 % Money market funds 2.9 % 3.3 % 0 - 15 % Total 100.0 % 100.0 % Net periodic benefit cost for 2016, 2015 and 2014 included the following components: Pension Benefits 2016 2015 2014 Components of net periodic benefit cost Interest cost $ 650 $ 596 $ 620 Expected return on plan assets (782 ) (840 ) (816 ) Amortization of actuarial loss 480 500 295 Net periodic benefit cost 348 256 99 Other changes in plan assets and benefit obligations recognized in other comprehensive income Net actuarial loss for the year 533 702 2,115 Amortization of net loss (480 ) (500 ) (295 ) Total recognized in other comprehensive income 53 202 1,820 Total recognized in net periodic benefit cost and other comprehensive income $ 401 $ 458 $ 1,919 Weighted average assumptions used to determine net periodic benefit cost for years ended December 31 Discount rate 4.28 % 3.81 % 4.60 % Expected return on plan assets 7.00 % 7.00 % 7.00 % No contributions are expected to be funded by the Company during 2017. Amounts in accumulated other comprehensive loss expected to be recognized in net periodic benefit cost in 2017 for the amortization of a net loss is $530. The following estimated future benefit payments are expected in the years indicated: Pension Benefits 2017 $ 730 2018 780 2019 840 2020 870 2021 900 2022 - 2025 4,780 The Company sponsors a 401(k) defined contribution plan to provide eligible employees with additional income upon retirement. The Company’s contributions to the plan are based on employee contributions. The Company’s contributions totaled $5,943, $5,292 and $5,134 in 2016, 2015 and 2014, respectively. The Company maintains a SERP for certain of its executive officers. The plan is a non-qualified deferred compensation plan administered by the Board of Directors of the Company, pursuant to which the Company makes quarterly cash contributions of a certain percentage of executive officers’ compensation. Investments are self-directed by participants and can include Company stock. Upon retirement, participants receive their apportioned share of the plan assets in the form of cash. Assets of the SERP consist of the following: December 31, 2016 December 31, 2015 Cost Market Cost Market Company stock $ 1,958 $ 3,428 $ 1,778 $ 2,560 Equity securities 3,474 4,454 3,402 3,309 Total $ 5,432 $ 7,882 $ 5,180 $ 5,869 The Company periodically adjusts the deferred compensation liability such that the balance of the liability equals the total fair market value of all assets held by the trust established under the SERP. Such liabilities are included in other long-term liabilities on the consolidated balance sheets. The equity securities are included in investments in the consolidated balance sheets and classified as trading equity securities. See Note 4, Investments, for additional information. The cost of the Company stock held by the plan is included as a reduction in shareholders’ equity in the consolidated balance sheets. The change in the fair market value of Company stock held in the SERP results in a charge or credit to selling, general and administrative expenses in the consolidated statements of income because the acquisition cost of the Company stock in the SERP is recorded as a reduction of shareholders’ equity and is not adjusted to fair market value; however, the related liability is adjusted to the fair market value of the stock as of each period end. The Company recognized expense of $1,742, $241 and $74 in 2016, 2015 and 2014, respectively, related to the change in the fair value of the Company stock held in the SERP.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2016
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments	13. Derivative Financial Instruments The Company is exposed to certain risks relating to its ongoing business operations. The primary risk managed by using derivative instruments is foreign currency risk. From time to time the Company’s foreign subsidiaries enter into foreign currency exchange contracts to mitigate exposure to fluctuations in currency exchange rates. The fair value of the derivative financial instrument is recorded on the Company’s balance sheet and is adjusted to fair value at each measurement date. The changes in fair value are recognized in the consolidated statements of income in the current period. The Company does not engage in speculative transactions nor does it hold or issue derivative financial instruments for trading purposes. The average U.S. dollar equivalent notional amount of outstanding foreign currency exchange contracts was $11,784 during 2016. At December 31, 2016, the Company reported $144 of derivative assets in other current assets and $89 of derivative liabilities in other current liabilities. The Company reported $935 of derivative assets in other current assets, $330 of derivative assets in other long-term assets and $22 of derivative liabilities in other current liabilities at December 31, 2015. The Company recognized, as a component of cost of sales, a net loss on the change in fair value of derivative instruments of $336 for the year ended December 31, 2016 and net gains on the change in fair value of derivative instruments of $606 and $438 for the years ended December 31, 2015 and 2014, respectively. There were no derivatives that were designated as hedges at December 31, 2016 or 2015.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Taxes [Abstract]
Income Taxes	14. Income Taxes For financial reporting purposes, income before income taxes includes the following components: Year Ended December 31 2016 2015 2014 United States $ 87,326 $ 57,846 $ 57,651 Foreign (231 ) (5,873 ) (4,045 ) Income before income taxes $ 87,095 $ 51,973 $ 53,606 The provision for income taxes consists of the following: Year Ended December 31 2016 2015 2014 Current provision: Federal $ 30,623 $ 19,758 $ 18,713 State 4,098 2,553 2,992 Foreign 907 255 243 Total current provision 35,628 22,566 21,948 Deferred provision (benefit): Federal (2,653 ) (1,183 ) (1,627 ) State (1,213 ) (275 ) (222 ) Foreign 345 (1,101 ) (699 ) Total deferred benefit (3,521 ) (2,559 ) (2,548 ) Total provision (benefit): Federal 27,970 18,575 17,086 State 2,885 2,278 2,770 Foreign 1,252 (846 ) (456 ) Total tax provision $ 32,107 $ 20,007 $ 19,400 The Company’s income tax provision is computed based on the domestic and foreign federal statutory rates and the average state statutory rates, net of related federal benefit. The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate to income before income taxes. A reconciliation of the provision for income taxes at the statutory federal income tax rate to the amount provided is as follows: Year Ended December 31 2016 2015 2014 Tax at the statutory federal income tax rate $ 30,483 $ 18,191 $ 18,762 Qualified production activity deduction (1,641 ) (1,174 ) (1,360 ) State income tax, net of federal income tax 1,876 1,386 1,727 Other permanent differences 673 393 840 Research and development tax credits (785 ) (291 ) (1,323 ) Change in valuation allowance 1,638 2,036 1,675 Other items (137 ) (534 ) (921 ) Total tax provision $ 32,107 $ 20,007 $ 19,400 Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows (certain amounts for 2015 have been reclassified from amounts previously reported to conform to 2016 presentation): December 31 2016 2015 Deferred tax assets: Inventory reserves $ 8,507 $ 7,828 Warranty reserves 4,527 2,852 Bad debt reserves 456 436 State tax loss carryforwards 3,403 3,006 Accrued vacation 2,351 2,174 SERP 299 275 Deferred compensation 2,124 1,328 Restricted stock units 1,845 1,893 Pension and post-employment benefits 2,530 2,571 Foreign net operating losses 5,461 5,134 Other 2,516 9,315 Valuation allowances (8,280 ) (8,065 ) Total deferred tax assets 25,739 28,747 Deferred tax liabilities: Property and equipment 20,167 19,799 Intangibles 1,244 1,961 Goodwill 1,605 1,835 Pension 1,205 1,305 Outside basis differences 511 -- Total deferred tax liabilities 24,732 24,900 Total net deferred assets (liabilities) $ 1,007 $ 3,847 As of December 31, 2016, the Company has state net operating loss carryforwards of $79,856, foreign net operating loss carryforwards of approximately $17,339, and state tax credit carryforwards of $65 for tax purposes, which will be available to offset future taxable income. If not used, these carryforwards will expire between 2017 and 2029. A significant portion of the valuation allowance for deferred tax assets relates to the future utilization of state and foreign net operating loss and state tax credit carryforwards. Future utilization of these net operating loss and state tax credit carryforwards is evaluated by the Company on a periodic basis and the valuation allowance is adjusted accordingly. In 2016, the valuation allowance on these carryforwards was increased by $183 due to uncertainty about whether certain entities will realize their state and foreign net operating loss carryforwards. The Company has also determined that the recovery of certain other deferred tax assets is uncertain. The valuation allowance for these deferred tax assets was increased by $32 during 2016. Undistributed earnings of the Company’s Canadian subsidiary, Breaker Technology Ltd., and Northern Ireland subsidiary, Telestack Limited, are considered to be indefinitely reinvested; accordingly, no provision for U.S. federal and state income taxes has been provided thereon. Upon any future repatriation of their earnings, in the form of dividends or otherwise, the Company would be subject to additional U.S. income taxes (subject to an adjustment for foreign tax credits) and withholding taxes due to the foreign jurisdictions may have to be paid. The cumulative amount of Breaker Technology, Ltd.’s unrecovered basis difference is $10,500 as of December 31, 2016. The cumulative amount of Telestack Limited’s unrecovered basis difference is $2,100 as of December 31, 2016. The determination of the unrecognized deferred tax liability on the basis difference is not practical at this time. The Company files income tax returns in the U.S. federal jurisdiction, and in various state and foreign jurisdictions. The Company is no longer subject to U.S. federal income tax examinations by authorities for years prior to 2014. With few exceptions, the Company is no longer subject to state and local or non-U.S. income tax examinations by authorities for years prior to 2012. The Company has a liability for unrecognized tax benefits of $238 and $603 (excluding accrued interest and penalties) as of December 31, 2016 and 2015, respectively. The Company recognizes interest and penalties accrued related to unrecognized tax benefits in tax expense. The Company recognized tax benefits of $16 and $123 in 2016 and 2015, respectively, for penalties and interest related to amounts that were settled for less than previously accrued. The net total amount of unrecognized tax benefits that, if recognized, would affect the Company’s effective tax rate is $238 and $618 at December 31, 2016 and 2015, respectively. The Company does not expect a significant increase or decrease to the total amount of unrecognized tax benefits within the next twelve months. A reconciliation of the beginning and ending unrecognized tax benefits excluding interest and penalties is as follows: Year Ended December 31 2016 2015 2014 Balance, beginning of year $ 603 $ 2,585 $ 1,933 Additions for tax positions related to the current year 73 206 127 Additions for tax positions related to prior years 162 549 525 Reductions due to lapse of statutes of limitations (16 ) (162 ) -- Decreases related to settlements with tax authorities (584 ) (2,575 ) -- Balance, end of year $ 238 $ 603 $ 2,585 The December 31, 2016 balance of unrecognized tax benefits includes no tax positions for which the ultimate deductibility is highly certain but the timing of such deductibility is uncertain. Accordingly, there is no impact to the deferred tax accounting for certain tax benefits.

Contingent Matters

Contingent Matters	12 Months Ended
	Dec. 31, 2016
Contingent Matters [Abstract]
Contingent Matters	15. Contingent Matters Certain customers have financed purchases of Company products through arrangements in which the Company is contingently liable for customer debt of $6,516 at December 31, 2016. These arrangements expire at various dates through December 2020 and provide that the Company will receive the lender's full security interest in the equipment financed if the Company is required to fulfill its contingent liability under these arrangements. The Company has recorded a liability of $332 related to these guarantees as of December 31, 2016. In addition, the Company is contingently liable under letters of credit issued by Wells Fargo totaling $8,876 as of December 31, 2016, including $6,200 of letters of credit guaranteeing certain Astec Brazil bank debt. The outstanding letters of credit expire at various dates through October 2020. As of December 31, 2016, Osborn is contingently liable for a total of $904 in retention guarantees. As of December 31, 2016, Telestack is contingently liable for a total of $197 in performance bond, advance payment and performance guarantees. The maximum potential amount of future payments under these letters of credit and guarantees for which the Company could be liable is $9,977 as of December 31, 2016. The Company is currently a party to various claims and legal proceedings that have arisen in the ordinary course of business. If management believes that a loss arising from such claims and legal proceedings is probable and can reasonably be estimated, the Company records the amount of the loss (excluding estimated legal fees) or the minimum estimated liability when the loss is estimated using a range and no point within the range is more probable than another. As management becomes aware of additional information concerning such contingencies, any potential liability related to these matters is assessed and the estimates are revised, if necessary. If management believes that a loss arising from such claims and legal proceedings is either (i) probable but cannot be reasonably estimated or (ii) reasonably possible but not probable, the Company does not record the amount of the loss, but does make specific disclosure of such matter. Based upon currently available information and with the advice of counsel, management believes that the ultimate outcome of its current claims and legal proceedings, individually and in the aggregate, will not have a material adverse effect on the Company's financial position, cash flows or results of operations. However, claims and legal proceedings are subject to inherent uncertainties and rulings unfavorable to the Company could occur. If an unfavorable ruling were to occur, there exists the possibility of a material adverse effect on the Company's financial position, cash flows or results of operations. During 2004, the Company received notice from the Environmental Protection Agency ("EPA") that it may be responsible for a portion of the costs incurred in connection with an environmental cleanup in Illinois. The discharge of hazardous materials and associated cleanup relate to activities occurring prior to the Company's acquisition of Barber-Greene in 1986. The Company believes that over 300 other parties have received similar notices. At this time, the Company cannot predict whether the EPA will seek to hold the Company liable for a portion of the cleanup costs or the amount of any such liability. The Company has not recorded a liability with respect to this matter because no estimate of the amount of any such liability can be made at this time.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Shareholders' Equity [Abstract]
Shareholders' Equity	16. Shareholders’ Equity The Company rewards key members of management with restricted stock units (“RSUs”) each year based upon the financial performance of the Company and its subsidiaries. Under the terms of the Company’s shareholder-approved 2011 Incentive Plan, up to 700 shares of newly-issued Company stock is available for awards. Awards granted in 2016 and prior vest at the end of five years from the date of grant, or at the time a recipient retires after reaching age 65, if earlier , , Compensation expense of $2,426, $1,019 and $961 was recorded in the years ended December 31, 2016, 2015 and 2014, respectively, to reflect the fair value of RSUs granted (or anticipated to be granted for 2016 performance) amortized over the portion of the vesting period occurring during the period. Related income tax benefits of $934, $362 and $348 were recorded in 2016, 2015 and 2014, respectively. Based upon the grant date fair value of RSUs, it is anticipated that $4,712 of additional compensation costs will be recognized in future periods through 2021 for RSUs earned through December 31, 2016. The weighted average period over which this additional compensation cost will be expensed is 3.2 years. RSUs do not participate in Company - Changes in restricted stock units during the year ended December 31, 2016 are as follows: 2016 Weighted Average Unvested restricted stock units, beginning of year 147 $ 36.83 Units granted 44 44.52 Units forfeited (1 ) 39.10 Units vested (78 ) 34.42 Unvested restricted stock units, end of year 112 41.48 The grant date fair value of the restricted stock units granted during 2016, 2015 and 2014 was $1,946, $937 and $561, respectively.

Operations by Industry Segment

Operations by Industry Segment and Geographic Area	12 Months Ended
	Dec. 31, 2016
Operations by Industry Segment and Geographic Area [Abstract]
Operations by Industry Segment and Geographic Area	17. Operations by Industry Segment and Geographic Area The Company has three reportable segments, each of which is comprised of multiple business units that offer similar products and services and meet the requirements for aggregation. A brief description of each segment is as follows: Infrastructure Group Aggregate and Mining Group Energy Group Corporate The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies. Intersegment sales and transfers are valued at prices comparable to those for unrelated parties. Segment information for 2016 Infrastructure Aggregate and Mining Group Energy Group Corporate Total Revenues from external customers $ 608,908 $ 359,760 $ 178,763 $ -- $ 1,147,431 Intersegment revenues 16,957 35,031 24,946 -- 76,934 Interest expense 31 948 4 412 1,395 Depreciation and amortization 7,205 10,033 6,655 920 24,813 Income taxes 3,033 664 437 27,973 32,107 Profit (loss) 71,482 34,877 4,145 (55,992 ) 54,512 Assets 657,225 518,351 271,121 417,351 1,864,048 Capital expenditures 14,451 7,437 5,018 178 27,084 Segment information for 2015 Infrastructure Aggregate and Mining Group Energy Group Corporate Total Revenues from external customers $ 428,737 $ 370,813 $ 183,607 $ -- $ 983,157 Intersegment revenues 22,947 28,701 16,010 -- 67,658 Interest expense 258 1,005 10 338 1,611 Depreciation and amortization 6,907 10,719 5,553 899 24,078 Income taxes 1,224 764 (129 ) 18,148 20,007 Profit (loss) 33,890 30,690 3,609 (36,623 ) 31,566 Assets 567,936 496,089 256,978 306,511 1,627,514 Capital expenditures 8,043 8,807 4,049 389 21,288 Segment information for 2014 Infrastructure Aggregate and Mining Group Energy Group Corporate Total Revenues from external customers $ 386,356 $ 384,883 $ 204,356 $ -- $ 975,595 Intersegment revenues 26,661 33,009 17,548 -- 77,218 Interest expense 31 463 11 215 720 Depreciation and amortization 7,045 10,120 6,358 853 24,376 Income taxes 1,365 1,235 348 16,452 19,400 Profit (loss) 29,477 32,900 10,316 (35,270 ) 37,423 Assets 539,794 494,428 244,003 302,082 1,580,307 Capital expenditures 5,375 16,169 2,875 413 24,832 The totals of segment information for all reportable segments reconciles to consolidated totals as follows: 2016 2015 2014 Net income attributable to controlling interest Total profit for reportable segments $ 110,504 $ 68,189 $ 72,693 Corporate expenses, net (55,992 ) (36,623 ) (35,270 ) Net loss attributable to non-controlling interest 171 831 252 Recapture (elimination) of intersegment profit 476 400 (3,217 ) Total consolidated net income attributable to controlling interest $ 55,159 $ 32,797 $ 34,458 Assets Total assets for reportable segments $ 1,446,697 $ 1,321,003 $ 1,278,225 Corporate assets 417,351 306,511 302,082 Elimination of intercompany profit in inventory (7,020 ) (7,496 ) (7,896 ) Elimination of intercompany receivables (688,369 ) (583,834 ) (515,625 ) Elimination of investment in subsidiaries (272,766 ) (223,500 ) (227,051 ) Other eliminations (52,292 ) (35,331 ) (27,470 ) Total consolidated assets $ 843,601 $ 777,353 $ 802,265 Sales into major geographic regions were as follows: Year Ended December 31 2016 2015 2014 United States $ 941,273 $ 722,287 $ 654,230 Canada 37,539 54,321 61,898 Africa 31,557 45,671 47,940 Australia and Oceania 29,948 29,995 34,772 South America (excluding Brazil) 28,204 32,454 49,797 Other European Countries 19,198 23,867 12,365 Mexico 13,489 6,990 9,993 Japan and Korea 10,825 3,574 4,377 Other Asian Countries 6,926 9,513 17,018 Central America (excluding Mexico) 5,904 4,404 9,275 China 4,595 1,330 7,451 Brazil 4,300 8,376 12,869 Middle East 3,403 18,995 13,327 Post-Soviet States (excluding Russia) 3,293 8,345 8,245 Russia 3,185 8,466 25,589 West Indies 2,994 1,532 4,478 India 318 2,706 1,743 Other 480 331 228 Total foreign 206,158 260,870 321,365 Total consolidated sales $ 1,147,431 $ 983,157 $ 975,595 Long-lived assets by major geographic region are as follows: December 31 2016 2015 United States $ 151,470 $ 141,727 Brazil 11,288 9,780 South Africa 5,372 5,116 Northern Ireland 4,279 5,116 Australia 4,234 4,351 Canada 2,860 2,987 Germany 1,035 1,129 Total foreign 29,068 28,479 Total $ 180,538 $ 170,206

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2016
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Loss	18. Accumulated Other Comprehensive Loss The balance of related after-tax components comprising accumulated other comprehensive loss is summarized below: December 31 2016 2015 Foreign currency translation adjustment $ (27,839 ) $ (19,891 ) Unrecognized pension and post-retirement benefit cost, net of tax of $2,261 and $2,232, respectively (3,723 ) (3,673 ) Accumulated other comprehensive loss $ (31,562 ) $ (23,564 ) See Note 12, Pension and Retirement Plans, for discussion of the amounts recognized in accumulated other comprehensive income related to the Company’s Kolberg-Pioneer, Inc. defined pension plan.

Other Income (Expense) - Net

Other Income (Expense) - Net	12 Months Ended
	Dec. 31, 2016
Other Income (Expense) - Net [Abstract]
Other Income (Expense) - Net	19. Other Income (Expense) - Net Other income (expense), net consists of the following: Year Ended December 31 2016 2015 2014 Investment income (loss) $ (276 ) $ (381 ) $ 64 Licensing fees 546 641 831 Income from life insurance policies -- 1,204 -- Other 259 1,591 312 Total $ 529 $ 3,055 $ 1,207

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Business Combinations	20. Business Combinations In August 2016, the Company acquired substantially all of the assets and certain liabilities of Power Flame Incorporated (“PFI”) for a total purchase price of $39,765. The purchase price was paid in cash with $4,000 deposited into escrow for a period of time not to exceed two years pending final resolution of certain post-closing adjustments and any indemnification claims. The Company’s allocation of the purchase price resulted in the recognition of $12,632 of goodwill and $17,990 of other intangible assets consisting of technology (19 year useful life), trade names (15 year useful life) and customer relationships (18 year useful life). The revenues and results of operations of PFI were not significant in relation to the Company’s financial statements for the period ended December 31, 2016 and would not have been material on a proforma basis to any earlier period. PFI’s operating results are included in the Energy Group beginning in the third quarter of 2016. PFI, located in Parsons, Kansas, began operations in 1948 and manufactures and sells gas, oil and combination gas/oil and low NOx burners with outputs ranging from 400 thousand BTU’s per hour to 120 million BTU’s per hour as well as combustion control systems designed for commercial, industrial and process heating applications. On April 1, 2014, the Company purchased 100% of the stock of Telestack Limited (“Telestack”) for a total purchase price of $36,183. The purchase price was paid in cash with $2,500 deposited into escrow for a period of time not to exceed one year and was subject to certain post-closing adjustments. The post-closing adjustments were finalized during the first quarter of 2015 resulting in a decrease in the purchase price of $178. The adjusted purchase price allocation includes the recognition of $18,078 of goodwill and $14,445 of other intangible assets based on the exchange rate as of the acquisition date, consisting of trade names (15 year useful life), patents (5 to 10 year useful lives), non-compete agreements (3 year useful life) and customer relationships (11 year useful life). Telestack’s operating results are included in the Aggregate and Mining Group beginning in the second quarter of 2014. Telestack, located in Omagh, Northern Ireland, began operations in 1999 and specializes in the complete in-house design, manufacture, installation and commissioning of a complete line of material handling systems used extensively in the port, aggregate and mining industries. Telestack markets its products throughout the world by a combination of direct sales and distribution through dealers.

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Astec Australia Pty Ltd Astec do Brasil Fabricacao de Equipamentos Ltda. (92% owned) Astec, Inc. Astec Insurance Company Astec Mobile Machinery GmbH Astec Mobile Screens, Inc. Breaker Technology, Inc. Breaker Technology Ltd. Carlson Paving Products, Inc. CEI Enterprises, Inc. GEFCO, Inc. Heatec, Inc. Johnson Crushers International, Inc. Kolberg-Pioneer, Inc. Osborn Engineered Products SA (Pty) Ltd Peterson Pacific Corp. (99% owned) Power Flame Incorporated Roadtec, Inc. Telestack Limited Telsmith, Inc. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates
Foreign Currency Translation	Foreign Currency Translation
Fair Value of Financial Instruments	Fair Value of Financial Instruments Financial assets and liabilities are categorized as of the end of each reporting period based upon the level of judgment associated with the inputs used to measure their fair value. The inputs used to measure the fair value are identified in the following hierarchy: Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 - Unadjusted quoted prices in active markets for similar assets or liabilities; or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs other than quoted prices that are observable for the asset or liability. Level 3 - Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model. All financial assets and liabilities held by the Company at December 31, 2016 and 2015 are classified as Level 1 or Level 2, as summarized in Note 3, Fair Value Measurements.
Cash and Cash Equivalents	Cash and Cash Equivalents
Investments	Investments
Concentration of Credit Risk	Concentration of Credit Risk
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts Year Ended December 31 2016 2015 2014 Allowance balance, beginning of year $ 1,837 $ 2,248 $ 1,708 Provision 280 18 1,011 Write offs (560 ) (357 ) (465 ) Other (46 ) (72 ) (6 ) Allowance balance, end of year $ 1,511 $ 1,837 $ 2,248
Inventories	Inventories Raw material inventory is comprised of purchased steel and other purchased items for use in the manufacturing process or held for sale for the after-market parts business. The category also includes the manufacturing cost of completed equipment sub-assemblies produced for either integration into equipment manufactured at a later date or for sale in the Company’s after-market parts business. Work-in-process inventory consists of the value of materials, labor and overhead incurred to date in the manufacturing of incomplete equipment or incomplete equipment sub-assemblies being produced. Finished goods inventory consists of completed equipment manufactured for sale to customers. Used equipment inventory consists of equipment accepted in trade or purchased on the open market. The category also includes equipment rented to prospective customers on a short-term or month-to-month basis. Used equipment is valued at the lower of acquired or trade-in cost or net realizable value determined on each separate unit. Each unit of rental equipment is valued at its original manufacturing cost and is reduced by an appropriate reserve each month during the period of time the equipment is rented. Inventories are valued at the lower of cost (first-in, first-out) or net realizable value, which requires the Company to make specific estimates, assumptions and judgments in determining the amount, if any, of reductions in the valuation of inventories to their net realizable values. The net realizable values of the Company’s products are impacted by a number of factors, including changes in the price of steel, competitive sales pricing, quantities of inventories on hand, the age of the individual inventory items, market acceptance of the Company’s products, the Company’s normal gross margins, actions by our competitors, the condition of our used and rental inventory and general economic factors. Once an inventory item’s value has been deemed to be less than cost, a net realizable value allowance is calculated and a new “cost basis” for that item is effectively established. This new cost is retained for that item until such time as the item is disposed of or the Company determines that an additional write-down is necessary. Additional write-downs may be required in the future based upon changes in assumptions due to general economic downturns in the markets in which the Company operates, changes in competitor pricing, new product design or other technological advances introduced by the Company or its competitors and other factors unique to individual inventory items. The most significant component of the Company’s inventory is steel. A significant decline in the market price of steel could result in a decline in the market value of the equipment or parts we sell. During periods of significant declining steel prices, the Company reviews the valuation of its inventories to determine if reductions are needed in the recorded value of inventory on hand to its net realizable value. The Company reviews the individual items included in its finished goods, used equipment and rental equipment inventory on a model-by-model or unit-by-unit basis to determine if any item’s net realizable value is below its carrying value. This analysis is expanded to include items in work-in-process and raw material inventory if factors indicate those items may also be impacted. In performing this review, judgments are made and, in addition to the factors discussed above, additional consideration is given to the age of the specific items of used or rental inventory, prior sales offers or lack thereof, the physical condition of the specific items and general market conditions for the specific items. Additionally, an analysis of raw material inventory is performed to calculate reserves needed for obsolete inventory based upon quantities of items on hand, the age of those items and their recent and expected future usage or sale. When the Company determines that the value of inventory has become impaired through damage, deterioration, obsolescence, changes in price levels, excessive levels of inventory or other causes, the Company reduces the carrying value to the net realizable value based on estimates, assumptions and judgments made from the information available at that time. Abnormal amounts of idle facility expense, freight, handling cost and wasted materials are recognized as current period charges.
Property and Equipment	Property and Equipment
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The Company tests intangible assets with definite lives for impairment if conditions exist that indicate the carrying value may not be recoverable. Such conditions may include an economic downturn in a geographic market or a change in the assessment of future operations. An impairment charge is recorded when the carrying value of the definite lived intangible asset is not recoverable by the future undiscounted cash flows expected to be generated from the use of the asset. The Company determines the useful lives of identifiable intangible assets after considering the specific facts and circumstances related to each intangible asset. Factors considered when determining useful lives include the contractual terms of agreements, the history of the asset, the Company’s long-term strategy for the use of the asset, any laws or other local regulations which could impact the useful life of the asset, and other economic factors, including competition and specific market conditions. Intangible assets that are deemed to have definite lives are amortized over their useful lives, as follows: dealer network and customer relationships: 8-19 years; trade names: 15 years; other: 6-19 years. Goodwill is not amortized. The Company tests goodwill for impairment annually or more frequently if events or circumstances indicate that goodwill might be impaired. The tests utilize a two-step method at the reporting unit level. The Company’s reporting units are typically defined as either subsidiaries or a combination of subsidiaries. The first step of the goodwill impairment test compares book value of a reporting unit, including goodwill, with the unit’s fair value. In this first step, the Company estimates the fair values of each of its reporting units that have goodwill using the income approach. The income approach uses a reporting unit’s projection of estimated future operating results and cash flows which are then discounted using a weighted average cost of capital determined based on current market conditions for the individual reporting unit. The projection uses management’s best estimates of cash flows over the projection period based on estimates of annual and terminal growth rates in sales and costs, changes in operating margins, selling, general and administrative expenses, working capital requirements and capital expenditures. The fair value of reporting units that do not have goodwill are estimated using either the income or market approaches, depending on which approach is to be the most appropriate for each reporting unit. The fair value of the reporting units that serve operating units in supporting roles, such as the captive insurance company and the corporate reporting unit are estimated using the cost approach. The sum of the fair values of all reporting units is compared to the fair value of the consolidated Company, calculated using the market approach, which is inferred from the market capitalization of the Company at the date of the valuation, to confirm that the Company’s estimation of the fair value of its reporting units is reasonable. If the book value of a reporting unit exceeds its fair value, an indication of possible goodwill impairment, the second step of the impairment test must be performed to determine the amount, if any, of goodwill impairment. In this second step, the total implied fair value of the reporting unit’s goodwill is estimated by allocating the fair value of the reporting unit to all its assets, including any unrecognized intangible assets and liabilities other than goodwill. The difference between the total fair value of the reporting unit and the fair value of its assets and liabilities other than goodwill is the implied fair value of its goodwill. The amount of any impairment loss is equal to the excess, if any, of the book value of the goodwill over the implied fair value of its goodwill. Determining the “step one” fair values of the Company’s reporting units involves the use of significant estimates and assumptions. Due to the inherent uncertainty involved in making these estimates and assumptions, actual results could differ materially from those estimates.
Impairment of Long-lived Assets	Impairment of Long-lived Assets
Self-Insurance Reserves	Self-Insurance Reserves For general liability claims, the captive is liable for the first $1,000 per occurrence and $3,000 per year in the aggregate. The Company carries general liability, excess liability and umbrella policies for claims in excess of amounts covered by the captive. For workers’ compensation claims, the captive is liable for the first $350 per occurrence and $3,250 per year in the aggregate. The Company utilizes a large national insurance company as third party administrator for workers’ compensation claims and carries insurance coverage for claims liabilities in excess of amounts covered by the captive. The financial statements of the captive are consolidated into the financial statements of the Company. The short-term and long-term reserves for claims and potential claims related to general liability and workers’ compensation under the captive are included in accrued loss reserves or other long-term liabilities, respectively, in the consolidated balance sheets depending on the expected timing of future payments. The undiscounted reserves are actuarially determined to cover the ultimate cost of each claim based on the Company’s evaluation of the type and severity of individual claims and historical information, primarily its own claims experience, along with assumptions about future events. Changes in assumptions, as well as changes in actual experience, could cause these estimates to change in the future. However, the Company does not believe it is reasonably likely that the reserve level will materially change in the foreseeable future. The Company is self-insured for health and prescription claims under its Group Health Insurance Plan at all but one of the Company’s domestic manufacturing subsidiaries. The Company carries reinsurance coverage to limit its exposure for individual health claims above certain limits. Third parties administer health claims and prescription medication claims. The Company maintains a reserve for the self-insured health plan which is included in accrued loss reserves on the Company’s consolidated balance sheets. This reserve includes both unpaid claims and an estimate of claims incurred but not reported, based on historical claims and payment experience. Historically the reserves have been sufficient to provide for claims payments. Changes in actual claims experience or payment patterns could cause the reserve to change, but the Company does not believe it is reasonably likely that the reserve level will materially change in the near future. The remaining U.S. subsidiary is covered under a fully insured group health plan. Employees of the Company’s foreign subsidiaries are insured under separate health plans. No reserves are necessary for these fully insured health plans.
Revenue Recognition	Revenue Recognition Certain contracts include terms and conditions pursuant to which the Company recognizes revenues upon completion of equipment production, which is subsequently stored at the Company’s plant at the customer’s request. Revenue is recorded on such contracts upon the customer’s assumption of title and risk of ownership and when collectability is reasonably assured. In addition, there must be a fixed schedule of delivery of the goods consistent with the customer’s business practices, the Company must not have retained any specific performance obligations such that the earnings process is not complete and the goods must have been segregated from the Company’s inventory prior to revenue recognition. The Company has certain sales accounted for as multiple-element arrangements, whereby revenue attributable to the sale of a product is recognized when the product is shipped, and the revenue attributable to services provided with respect to the product (such as installation services) is recognized when the service is performed. Consideration is allocated to deliverables using the relative selling price method using vendor specific objective evidence, if it exists. Otherwise, the Company uses third-party evidence of selling price or the Company’s best estimate of the selling price for the deliverables. The Company evaluates sales with multiple deliverable elements (such as an agreement to deliver equipment and related installation services) to determine whether revenue related to individual elements should be recognized separately, or as a combined unit. In addition to the previously mentioned general revenue recognition criteria, the Company only recognizes revenue on individual delivered elements when there is objective and reliable evidence that the delivered element has a determinable value to the customer on a standalone basis and there is no right of return. The Company has certain sales accounted for under the percentage of completion method using the ratio of costs incurred to estimated total costs. Revenue, in an amount equal to cost incurred, is recognized until there is sufficient information to determine the estimated profit on the project with a reasonable level of certainty. The factors considered in this evaluation include the stage of design completion, the stage of equipment manufacturing completion, the state of construction completion, the status of outstanding subcontracts, certainty of quantities of labor and materials, certainty of schedule and the relationship with the customer. The Company presents in the consolidated statements of income any taxes assessed by a governmental authority that are directly imposed on revenue-producing transactions between the Company and its customers, such as sales, use, value-added and some excise taxes, on a net (excluded from revenue) basis.
Advertising Expense	Advertising Expense
Income Taxes	Income Taxes The Company evaluates a tax position to determine whether it is more likely than not that the tax position will be sustained upon examination, based upon the technical merits of the position. A tax position that meets the more-likely-than-not recognition threshold is subject to a measurement assessment to determine the amount of benefit to recognize and the appropriate reserve to establish, if any. If a tax position does not meet the more-likely-than-not recognition threshold, no benefit is recognized. The Company is periodically audited by U.S. federal and state as well as foreign tax authorities. While it is often difficult to predict final outcome or timing of resolution of any particular tax matter, the Company believes its reserve for uncertain tax positions is adequate to reduce the uncertain positions to the greatest amount of benefit that is more likely than not realizable.
Product Warranty Reserve	Product Warranty Reserve The Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of our component suppliers. Estimated warranty obligations are based upon warranty terms, product failure rates, repair costs and current period machine shipments. If actual product failure rates, repair costs, service delivery costs or post-sales support costs differ from our estimates, revisions to the estimated warranty liability may be required.
Pension and Retirement Plans	Pension and Retirement Plans The Company recognizes the overfunded or underfunded status of its pension plan as an asset or liability. Actuarial gains and losses, amortization of prior service cost (credit) and amortization of transition obligations are recognized through other comprehensive income in the year in which the changes occur. The Company measures the funded status of its pension plan as of the date of the Company’s fiscal year-end.
Stock-based Compensation	Stock-based Compensation
Earnings Per Share	Earnings Per Share The following table sets forth a reconciliation of the number of shares used in the computation of basic and diluted earnings per share: Year Ended December 31 2016 2015 2014 Denominator: Denominator for basic earnings per share 22,992 22,934 22,819 Effect of dilutive securities: Employee stock options and restricted stock units 85 123 176 Supplemental executive retirement plan 65 63 110 Denominator for diluted earnings per share 23,142 23,120 23,105 Antidilutive options were not included in the diluted earnings per share computation for the years presented. The number of antidilutive options in each of the three years ended December 31, 2016 was not material.
Derivatives and Hedging Activities	Derivatives and Hedging Activities
Shipping and Handling Fees and Cost	Shipping and Handling Fees and Cost
Business Combinations	Business Combinations
Subsequent Events Review	Subsequent Events Review
Recent Accounting Pronouncements	Recent Accounting Pronouncements In July 2015, the FASB issued ASU No. 2015-11, "Inventory (Topic 330): Simplifying the Measurement of Inventory", which changes the measurement basis for inventory from the lower of cost or market to lower of cost and net realizable value and also eliminates the requirement for companies to consider replacement cost or net realizable value less an approximate normal profit margin when determining the recorded value of inventory. The standard is effective for public companies in fiscal years beginning after December 15, 2016. The Company early adopted the standard effective October 1, 2016. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments - Overall (Subtopic 825-10)”, which requires, among other things, equity investments with readily determinable fair values, except those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income. The standard is effective for public companies in fiscal years beginning after December 15, 2017, and the Company expects to adopt the standard effective January 1, 2018. The Company has not yet determined what impact, if any, the adoption of this new standard will have on the Company's financial position or results of operations. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)”, which significantly changes the accounting for operating leases by lessees. The accounting applied by lessors is largely unchanged from that applied under previous guidance. The new guidance requires lessees to recognize lease assets and lease liabilities in the balance sheet, initially measured at the present value of the lease payments, for leases which were classified as operating leases under previous guidance. Lease cost included in the statement of income will be calculated so that the cost of the lease is allocated over the lease term, generally on a straight-line basis. Lessees may make an accounting policy election to exclude leases with a term of 12 months or less from the requirement to record related assets and liabilities. The new standard is effective for public companies for fiscal years beginning after December 15, 2018. The Company plans to adopt the new standard effective January 1, 2019. The Company does not expect the adoption of this standard to have a material impact on its results of operations; however, the Company has not determined the impact the adoption of this new standard will have on its financial position. In March 2016, the FASB issued ASU No. 2016-08, “Revenue from Contracts with Customers (Topic 606)”, which does not change the core principles of ASU No. 2014-09 discussed above, but rather clarifies the implementation guidance in order to eliminate the potential for diversity in practice arising from inconsistent application of the principal versus agent guidance. Under the new guidance, when an entity determines it is a principal in a transaction, the entity recognizes revenue in the gross amount of consideration; however in transactions where an entity determines it in an agent, the entity recognizes revenue in the amount of any fee or commission to which it expects to be entitled. The standard is effective for public companies for annual periods beginning after December 15, 2017. The Company plans to adopt the new standard effective January 1, 2018. The Company has not yet determined what impact, if any, the adoption of this new standard will have on the Company's financial position or results of operations. In March 2016, the FASB issued ASU No. 2016-09, “Compensation - Stock Compensation (Topic 718)”, as part of its Simplification Initiative. The standard’s provisions impact several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification in the statement of cash flows. The standard is effective for public companies for annual periods beginning after December 15, 2016, with early adoption permitted. The Company adopted the new standard effective January 1, 2016 and has recorded a cumulative effect adjustment in retained earnings as of January 1, 2016 of $95, net of tax, related to the adoption of the new provisions allowing for restricted stock unit forfeitures to be accounted for at the time they occur as opposed to being estimated during the vesting period. Additionally, income tax benefits of $220, which would have been recorded in additional paid-in capital under prior guidance, have been recorded in 2016 consolidated income related to excess tax benefits resulting from the vesting of restricted stock units in 2016. As allowed under the provision’s guidelines, amounts for 2015 have not been restated in the accompanying financial statements. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments”. The standard changes how credit losses are measured for most financial assets and certain other instruments that currently are not measured through net income. The standard will require an expected loss model for instruments measured at amortized cost as opposed to the current incurred loss approach. In valuing available for sale debt securities, allowances will be required to be recorded, rather than the current approach of reducing the carrying amount, for other than temporary impairments. A cumulative adjustment to retained earnings is to be recorded as of the beginning of the period of adoption to reflect the impact of applying the provisions of the standard. The standard is effective for public companies for periods beginning after December 15, 2019 and the Company expects to adopt the new standard as of January 1, 2020. The Company has not yet determined what impact, if any, the adoption of this new standard will have on the Company's financial position or results of operations. In August 2016, the FASB issued ASU No. 2016-15, “Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force)” which clarifies how certain cash receipts and cash payments should be presented on the statement of cash flows. The statement also addresses how the predominance principle should be applied when cash payments have aspects of more than one class of cash flows. In October 2016, the FASB issued ASU No. 2016-16, “Intra-Entity Transfers of Assets Other Than Inventory” which requires companies to account for the income tax effects of intercompany sales and transfers of assets other than inventory, such as intangible assets, when the transfer occurs. This is a change from current guidance, which requires companies to defer the income tax effects of intercompany transfers of assets until the asset has been sold to an outside party or otherwise recognized by being depreciated, amortized, or impaired. The new guidance will require companies to defer the income tax effects of only intercompany transfers of inventory. The standard is effective for public companies in fiscal years beginning after December 15, 2018. Early adoption is permitted as of the beginning of an annual period and requires companies to apply a modified retrospective approach.

Summary of Significant Accoun30

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Schedule of allowance for doubtful accounts	The following table represents a rollforward of the allowance for doubtful accounts for the years ended December 31, 2016, 2015 and 2014: Year Ended December 31 2016 2015 2014 Allowance balance, beginning of year $ 1,837 $ 2,248 $ 1,708 Provision 280 18 1,011 Write offs (560 ) (357 ) (465 ) Other (46 ) (72 ) (6 ) Allowance balance, end of year $ 1,511 $ 1,837 $ 2,248
Computation of earnings per share	The following table sets forth a reconciliation of the number of shares used in the computation of basic and diluted earnings per share: Year Ended December 31 2016 2015 2014 Denominator: Denominator for basic earnings per share 22,992 22,934 22,819 Effect of dilutive securities: Employee stock options and restricted stock units 85 123 176 Supplemental executive retirement plan 65 63 110 Denominator for diluted earnings per share 23,142 23,120 23,105

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2016
Inventories [Abstract]
Inventories	Inventories consist of the following: December 31 2016 2015 Raw materials and parts $ 137,763 $ 141,967 Work-in-process 115,613 113,859 Finished goods 84,898 104,879 Used equipment 22,130 24,071 Total $ 360,404 $ 384,776

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Measurements [Abstract]
Schedule of financial assets and liabilities, at fair value	As indicated in the tables below, the Company has determined that its financial assets and liabilities at December 31, 2016 and 2015 are level 1 and level 2 in the fair value hierarchy: December 31, 2016 Level 1 Level 2 Level 3 Total Financial Assets: Trading equity securities: SERP money market fund $ 92 $ -- $ -- $ 92 SERP mutual funds 3,335 -- -- 3,335 Preferred stocks 475 -- -- 475 Trading debt securities: Corporate bonds 5,413 -- -- 5,413 Municipal bonds -- 2,248 -- 2,248 Floating rate notes 118 -- -- 118 U.S. Treasury bills 388 -- -- 388 Asset backed securities -- 637 -- 637 Other -- 2,283 -- 2,283 Derivative financial instruments -- 144 -- 144 Total financial assets $ 9,821 $ 5,312 $ -- $ 15,133 Financial Liabilities: SERP liabilities $ -- $ 7,882 $ -- $ 7,882 Derivative financial instruments -- 89 -- 89 Total financial liabilities $ -- $ 7,971 $ -- $ 7,971 December 31, 2015 Level 1 Level 2 Level 3 Total Financial Assets: Trading equity securities: SERP money market fund $ 445 $ -- $ -- $ 445 SERP mutual funds 2,864 -- -- 2,864 Preferred stocks 742 -- -- 742 Trading debt securities: Corporate bonds 3,756 141 -- 3,897 Municipal bonds -- 1,811 -- 1,811 Floating rate notes 84 -- -- 84 U.S. Treasury bills 404 -- -- 404 Savings bonds 77 -- -- 77 Other -- 2,755 -- 2,755 Derivative financial instruments -- 1,265 -- 1,265 Total financial assets $ 8,372 $ 5,972 $ -- $ 14,344 Financial Liabilities: SERP liabilities $ -- $ 5,869 $ -- $ 5,869 Derivative financial instruments -- 22 -- 22 Total financial liabilities $ -- $ 5,891 $ -- $ 5,891

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2016
Investments [Abstract]
Schedule of trading securities	The Company’s trading securities consist of the following: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (Net Carrying Amount) December 31, 2016 Trading equity securities $ 3,980 $ 40 $ 118 $ 3,902 Trading debt securities 11,312 23 248 11,087 Total $ 15,292 $ 63 $ 366 $ 14,989 December 31, 2015 Trading equity securities $ 4,160 $ 79 $ 188 $ 4,051 Trading debt securities 9,263 37 272 9,028 Total $ 13,423 $ 116 $ 460 $ 13,079 Trading equity investments are valued at their estimated fair value based on their quoted market prices and trading debt securities are valued based upon a mix of observable market prices and model driven prices derived from a matrix of observable market prices for assets with similar characteristics obtained from a nationally recognized third party pricing service. Additionally, a significant portion of the trading equity securities are in equity money market and mutual funds and also comprise a portion of the Company’s liability under its SERP. See Note 12, Pension and Retirement Plans, for additional information on these investments and the SERP.

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill [Abstract]
Schedule of goodwill by reporting segment	The changes in the carrying amount of goodwill by reporting segment during the years ended December 31, 2016 and 2015 are as follows: Infrastructure Group Aggregate and Mining Group Energy Group Corporate Total Balance, December 31, 2014 $ 8,584 $ 23,411 $ -- $ -- $ 31,995 Purchase price adjustment -- (178 ) -- -- (178 ) Foreign currency translation (103 ) (879 ) -- -- (982 ) Balance, December 31, 2015 8,481 22,354 -- -- 30,835 Acquisition -- -- 12,632 -- 12,632 Foreign currency translation (33 ) (2,630 ) -- -- (2,663 ) Balance, December 31, 2016 $ 8,448 $ 19,724 $ 12,632 $ -- $ 40,804

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Intangible Assets [Abstract]
Schedule of intangible assets	Intangible assets consisted of the following at December 31, 2016 and 2015: 2016 2015 Gross Carrying AccumulatedAmortization Net Carrying Gross Carrying AccumulatedAmortization Net Carrying Dealer network and customer relationships $ 26,035 $ 7,584 $ 18,451 $ 13,111 $ 5,552 $ 7,559 Trade names 7,021 1,362 5,659 4,857 956 3,901 Other 5,764 3,231 2,533 4,966 2,849 2,117 Total $ 38,820 $ 12,177 $ 26,643 $ 22,934 $ 9,357 $ 13,577

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property and Equipment [Abstract]
Property and equipment	Property and equipment consist of the following: December 31 2016 2015 Land $ 14,768 $ 12,628 Building and land improvements 140,229 132,353 Manufacturing and office equipment 231,816 214,545 Aviation equipment 14,169 14,151 Less accumulated depreciation (220,444 ) (203,471 ) Total $ 180,538 $ 170,206

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Minimum rental commitments for non-cancelable operating leases	Minimum rental commitments for all noncancelable operating leases at December 31, 2016 are as follows: 2017 $ 1,337 2018 978 2019 669 2020 465 2021 177 Thereafter 21 $ 3,647

Product Warranty Reserves (Tabl

Product Warranty Reserves (Tables)	12 Months Ended
	Dec. 31, 2016
Product Warranty Reserves [Abstract]
Product warranty reserves	Changes in the Company’s product warranty liability during 2016, 2015 and 2014 are as follows: 2016 2015 2014 Reserve balance, beginning of year $ 9,100 $ 10,032 $ 12,716 Warranty liabilities accrued 18,912 13,743 12,796 Warranty liabilities settled (15,125 ) (14,177 ) (15,563 ) Other 269 (498 ) 83 Reserve balance, end of year $ 13,156 $ 9,100 $ 10,032

Pension and Retirement Plans (T

Pension and Retirement Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Pension and Retirement Plans [Abstract]
Benefit obligations, plan assets and the funded status of plans	The following provides information regarding benefit obligations, plan assets and the funded status of the plan: Pension Benefits 2016 2015 Change in benefit obligation Benefit obligation, beginning of year $ 15,565 $ 15,986 Interest cost 650 596 Actuarial (gain)/loss 514 (417 ) Benefits paid (625 ) (600 ) Benefit obligation, end of year 16,104 15,565 Accumulated benefit obligation 16,104 15,565 Change in plan assets Fair value of plan assets, beginning of year 12,688 13,283 Actual gain/(loss) on plan assets 763 (279 ) Employer contribution 415 284 Benefits paid (625 ) (600 ) Fair value of plan assets, end of year 13,241 12,688 Funded status, end of year $ (2,863 ) $ (2,877 )
Schedule of Amounts Recognized in Balance Sheet	Amounts recognized in the consolidated balance sheets Noncurrent liabilities $ (2,863 ) $ (2,877 ) Net amount recognized $ (2,863 ) $ (2,877 )
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Loss	Amounts recognized in accumulated other comprehensive loss consist of Net loss $ 6,152 $ 6,098 Net amount recognized $ 6,152 $ 6,098
Schedule of Assumptions Used	Weighted average assumptions used to determine benefit obligations as of December 31 Discount rate 4.00 % 4.28 % Expected return on plan assets 6.25 % 7.00 % Rate of compensation increase N/A N/A
Allocation of pension plan assets and target allocation range of assets	The allocation of assets within the mutual fund as of December 31 and the target asset allocation ranges by asset category are as follows: Actual Allocation Asset Category 2016 2015 2016 & 2015 Target Allocation Ranges Equity securities 63.6 % 66.0 % 53 - 73 % Debt securities 33.5 % 30.7 % 21 - 41 % Money market funds 2.9 % 3.3 % 0 - 15 % Total 100.0 % 100.0 %
Periodic benefit costs for defined benefit plans	Net periodic benefit cost for 2016, 2015 and 2014 included the following components: Pension Benefits 2016 2015 2014 Components of net periodic benefit cost Interest cost $ 650 $ 596 $ 620 Expected return on plan assets (782 ) (840 ) (816 ) Amortization of actuarial loss 480 500 295 Net periodic benefit cost 348 256 99 Other changes in plan assets and benefit obligations recognized in other comprehensive income Net actuarial loss for the year 533 702 2,115 Amortization of net loss (480 ) (500 ) (295 ) Total recognized in other comprehensive income 53 202 1,820 Total recognized in net periodic benefit cost and other comprehensive income $ 401 $ 458 $ 1,919 Weighted average assumptions used to determine net periodic benefit cost for years ended December 31 Discount rate 4.28 % 3.81 % 4.60 % Expected return on plan assets 7.00 % 7.00 % 7.00 %
Summary of estimated future benefit payments	The following estimated future benefit payments are expected in the years indicated: Pension Benefits 2017 $ 730 2018 780 2019 840 2020 870 2021 900 2022 - 2025 4,780
Assets of the supplemental executive retirement plan	Assets of the SERP consist of the following: December 31, 2016 December 31, 2015 Cost Market Cost Market Company stock $ 1,958 $ 3,428 $ 1,778 $ 2,560 Equity securities 3,474 4,454 3,402 3,309 Total $ 5,432 $ 7,882 $ 5,180 $ 5,869

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Taxes [Abstract]
Income before income taxes	For financial reporting purposes, income before income taxes includes the following components: Year Ended December 31 2016 2015 2014 United States $ 87,326 $ 57,846 $ 57,651 Foreign (231 ) (5,873 ) (4,045 ) Income before income taxes $ 87,095 $ 51,973 $ 53,606
Provision for income tax	The provision for income taxes consists of the following: Year Ended December 31 2016 2015 2014 Current provision: Federal $ 30,623 $ 19,758 $ 18,713 State 4,098 2,553 2,992 Foreign 907 255 243 Total current provision 35,628 22,566 21,948 Deferred provision (benefit): Federal (2,653 ) (1,183 ) (1,627 ) State (1,213 ) (275 ) (222 ) Foreign 345 (1,101 ) (699 ) Total deferred benefit (3,521 ) (2,559 ) (2,548 ) Total provision (benefit): Federal 27,970 18,575 17,086 State 2,885 2,278 2,770 Foreign 1,252 (846 ) (456 ) Total tax provision $ 32,107 $ 20,007 $ 19,400
Reconciliation of provision for income taxes at the statutory federal income tax rate	A reconciliation of the provision for income taxes at the statutory federal income tax rate to the amount provided is as follows: Year Ended December 31 2016 2015 2014 Tax at the statutory federal income tax rate $ 30,483 $ 18,191 $ 18,762 Qualified production activity deduction (1,641 ) (1,174 ) (1,360 ) State income tax, net of federal income tax 1,876 1,386 1,727 Other permanent differences 673 393 840 Research and development tax credits (785 ) (291 ) (1,323 ) Change in valuation allowance 1,638 2,036 1,675 Other items (137 ) (534 ) (921 ) Total tax provision $ 32,107 $ 20,007 $ 19,400
Significant components of company's deferred tax assets and liabilities	Significant components of the Company’s deferred tax assets and liabilities are as follows (certain amounts for 2015 have been reclassified from amounts previously reported to conform to 2016 presentation): December 31 2016 2015 Deferred tax assets: Inventory reserves $ 8,507 $ 7,828 Warranty reserves 4,527 2,852 Bad debt reserves 456 436 State tax loss carryforwards 3,403 3,006 Accrued vacation 2,351 2,174 SERP 299 275 Deferred compensation 2,124 1,328 Restricted stock units 1,845 1,893 Pension and post-employment benefits 2,530 2,571 Foreign net operating losses 5,461 5,134 Other 2,516 9,315 Valuation allowances (8,280 ) (8,065 ) Total deferred tax assets 25,739 28,747 Deferred tax liabilities: Property and equipment 20,167 19,799 Intangibles 1,244 1,961 Goodwill 1,605 1,835 Pension 1,205 1,305 Outside basis differences 511 -- Total deferred tax liabilities 24,732 24,900 Total net deferred assets (liabilities) $ 1,007 $ 3,847
Reconciliation of unrecognized tax benefit	A reconciliation of the beginning and ending unrecognized tax benefits excluding interest and penalties is as follows: Year Ended December 31 2016 2015 2014 Balance, beginning of year $ 603 $ 2,585 $ 1,933 Additions for tax positions related to the current year 73 206 127 Additions for tax positions related to prior years 162 549 525 Reductions due to lapse of statutes of limitations (16 ) (162 ) -- Decreases related to settlements with tax authorities (584 ) (2,575 ) -- Balance, end of year $ 238 $ 603 $ 2,585

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Shareholders' Equity [Abstract]
Changes in restricted stock units	Changes in restricted stock units during the year ended December 31, 2016 are as follows: 2016 Weighted Average Unvested restricted stock units, beginning of year 147 $ 36.83 Units granted 44 44.52 Units forfeited (1 ) 39.10 Units vested (78 ) 34.42 Unvested restricted stock units, end of year 112 41.48

Operations by Industry Segmen42

Operations by Industry Segment and Geographic Area (Tables)	12 Months Ended
	Dec. 31, 2016
Operations by Industry Segment and Geographic Area [Abstract]
Segment information	Intersegment sales and transfers are valued at prices comparable to those for unrelated parties. Segment information for 2016 Infrastructure Aggregate and Mining Group Energy Group Corporate Total Revenues from external customers $ 608,908 $ 359,760 $ 178,763 $ -- $ 1,147,431 Intersegment revenues 16,957 35,031 24,946 -- 76,934 Interest expense 31 948 4 412 1,395 Depreciation and amortization 7,205 10,033 6,655 920 24,813 Income taxes 3,033 664 437 27,973 32,107 Profit (loss) 71,482 34,877 4,145 (55,992 ) 54,512 Assets 657,225 518,351 271,121 417,351 1,864,048 Capital expenditures 14,451 7,437 5,018 178 27,084 Segment information for 2015 Infrastructure Aggregate and Mining Group Energy Group Corporate Total Revenues from external customers $ 428,737 $ 370,813 $ 183,607 $ -- $ 983,157 Intersegment revenues 22,947 28,701 16,010 -- 67,658 Interest expense 258 1,005 10 338 1,611 Depreciation and amortization 6,907 10,719 5,553 899 24,078 Income taxes 1,224 764 (129 ) 18,148 20,007 Profit (loss) 33,890 30,690 3,609 (36,623 ) 31,566 Assets 567,936 496,089 256,978 306,511 1,627,514 Capital expenditures 8,043 8,807 4,049 389 21,288 Segment information for 2014 Infrastructure Aggregate and Mining Group Energy Group Corporate Total Revenues from external customers $ 386,356 $ 384,883 $ 204,356 $ -- $ 975,595 Intersegment revenues 26,661 33,009 17,548 -- 77,218 Interest expense 31 463 11 215 720 Depreciation and amortization 7,045 10,120 6,358 853 24,376 Income taxes 1,365 1,235 348 16,452 19,400 Profit (loss) 29,477 32,900 10,316 (35,270 ) 37,423 Assets 539,794 494,428 244,003 302,082 1,580,307 Capital expenditures 5,375 16,169 2,875 413 24,832
Totals of segment information for all reportable segments reconciled to consolidated totals	The totals of segment information for all reportable segments reconciles to consolidated totals as follows: 2016 2015 2014 Net income attributable to controlling interest Total profit for reportable segments $ 110,504 $ 68,189 $ 72,693 Corporate expenses, net (55,992 ) (36,623 ) (35,270 ) Net loss attributable to non-controlling interest 171 831 252 Recapture (elimination) of intersegment profit 476 400 (3,217 ) Total consolidated net income attributable to controlling interest $ 55,159 $ 32,797 $ 34,458 Assets Total assets for reportable segments $ 1,446,697 $ 1,321,003 $ 1,278,225 Corporate assets 417,351 306,511 302,082 Elimination of intercompany profit in inventory (7,020 ) (7,496 ) (7,896 ) Elimination of intercompany receivables (688,369 ) (583,834 ) (515,625 ) Elimination of investment in subsidiaries (272,766 ) (223,500 ) (227,051 ) Other eliminations (52,292 ) (35,331 ) (27,470 ) Total consolidated assets $ 843,601 $ 777,353 $ 802,265
Sales into major geographic regions	Sales into major geographic regions were as follows: Year Ended December 31 2016 2015 2014 United States $ 941,273 $ 722,287 $ 654,230 Canada 37,539 54,321 61,898 Africa 31,557 45,671 47,940 Australia and Oceania 29,948 29,995 34,772 South America (excluding Brazil) 28,204 32,454 49,797 Other European Countries 19,198 23,867 12,365 Mexico 13,489 6,990 9,993 Japan and Korea 10,825 3,574 4,377 Other Asian Countries 6,926 9,513 17,018 Central America (excluding Mexico) 5,904 4,404 9,275 China 4,595 1,330 7,451 Brazil 4,300 8,376 12,869 Middle East 3,403 18,995 13,327 Post-Soviet States (excluding Russia) 3,293 8,345 8,245 Russia 3,185 8,466 25,589 West Indies 2,994 1,532 4,478 India 318 2,706 1,743 Other 480 331 228 Total foreign 206,158 260,870 321,365 Total consolidated sales $ 1,147,431 $ 983,157 $ 975,595
Long-lived assets by major geographic region	Long-lived assets by major geographic region are as follows: December 31 2016 2015 United States $ 151,470 $ 141,727 Brazil 11,288 9,780 South Africa 5,372 5,116 Northern Ireland 4,279 5,116 Australia 4,234 4,351 Canada 2,860 2,987 Germany 1,035 1,129 Total foreign 29,068 28,479 Total $ 180,538 $ 170,206

Accumulated Other Comprehensi43

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2016
Accumulated Other Comprehensive Loss [Abstract]
Components of accumulated other comprehensive loss	The balance of related after-tax components comprising accumulated other comprehensive loss is summarized below: December 31 2016 2015 Foreign currency translation adjustment $ (27,839 ) $ (19,891 ) Unrecognized pension and post-retirement benefit cost, net of tax of $2,261 and $2,232, respectively (3,723 ) (3,673 ) Accumulated other comprehensive loss $ (31,562 ) $ (23,564 )

Other Income (Expense) - Net (T

Other Income (Expense) - Net (Tables)	12 Months Ended
	Dec. 31, 2016
Other Income (Expense) - Net [Abstract]
Schedule of other income, net of expenses	Other income (expense), net consists of the following: Year Ended December 31 2016 2015 2014 Investment income (loss) $ (276 ) $ (381 ) $ 64 Licensing fees 546 641 831 Income from life insurance policies -- 1,204 -- Other 259 1,591 312 Total $ 529 $ 3,055 $ 1,207

Summary of Significant Accoun45

Summary of Significant Accounting Policies (Details) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)Subsidiaryshares	Dec. 31, 2015USD ($)shares	Dec. 31, 2014USD ($)shares
Foreign Currency Translation [Abstract]
Foreign currency transaction gains and (losses), net	$ (246)	$ (1,377)	$ (1,971)
Allowance for doubtful accounts [Roll Forward]
Allowance balance, beginning of year	1,837	2,248	1,708
Provision	280	18	1,011
Write offs	(560)	(357)	(465)
Other	(46)	(72)	(6)
Allowance balance, end of year	1,511	1,837	2,248
Advertising Expense [Abstract]
Advertising costs	$ 4,045	$ 4,231	$ 3,657
Denominator [Abstract]
Denominator for basic earnings per share (in shares) | shares	22,992	22,934	22,819
Effect of dilutive securities [Abstract]
Employee stock options and restricted stock units (in shares) | shares	85	123	176
Supplemental executive retirement plan (in shares) | shares	65	63	110
Denominator for diluted earnings per share (in shares) | shares	23,142	23,120	23,105
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of manufacturing subsidiaries | Subsidiary	16
Minimum [Member]
Product Warranty Liability [Line Items]
Product warranty reserve term	3 months
Maximum [Member]
Product Warranty Liability [Line Items]
Product warranty reserve term	2 years
Aviation Equipment [Member]
Useful Lives [Abstract]
Estimated useful lives of assets	20 years
Buildings [Member]
Useful Lives [Abstract]
Estimated useful lives of assets	40 years
Equipment [Member] | Minimum [Member]
Useful Lives [Abstract]
Estimated useful lives of assets	3 years
Equipment [Member] | Maximum [Member]
Useful Lives [Abstract]
Estimated useful lives of assets	10 years
Osborn Engineered Products [Member]
Schedule of Equity Method Investments [Line Items]
Percentage ownership of subsidiary	99.00%
Astec do Brasil Fabricacao de Equipamentos LTDA [Member]
Schedule of Equity Method Investments [Line Items]
Percentage ownership of subsidiary	92.00%
General Liability Insurance [Member]
Self-Insurance Reserves [Abstract]
Amount captive is liable per occurrence of claims	$ 1,000
Amount captive is liable per year in the aggregate	3,000
Workers' Compensation Insurance [Member]
Self-Insurance Reserves [Abstract]
Amount captive is liable per occurrence of claims	350
Amount captive is liable per year in the aggregate	$ 3,250
Dealer Network and Customer Relationships [Member] | Minimum [Member]
Estimated useful lives of definite lived intangible assets [Abstract]
Estimated useful lives of intangible assets	8 years
Dealer Network and Customer Relationships [Member] | Maximum [Member]
Estimated useful lives of definite lived intangible assets [Abstract]
Estimated useful lives of intangible assets	19 years
Trade Name [Member]
Estimated useful lives of definite lived intangible assets [Abstract]
Estimated useful lives of intangible assets	15 years
Other [Member] | Minimum [Member]
Estimated useful lives of definite lived intangible assets [Abstract]
Estimated useful lives of intangible assets	6 years
Other [Member] | Maximum [Member]
Estimated useful lives of definite lived intangible assets [Abstract]
Estimated useful lives of intangible assets	19 years
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment in retained earnings, net of tax	$ (95)
Income tax benefits	$ (220)

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventories [Abstract]
Raw materials and parts	$ 137,763	$ 141,967
Work-in-process	115,613	113,859
Finished goods	84,898	104,879
Used equipment	22,130	24,071
Total	$ 360,404	$ 384,776

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Measured at Fair Value on a Recurring Basis [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financial Assets [Abstract]
Derivative financial instruments	$ 144	$ 1,265
Total financial assets	15,133	14,344
Financial Liabilities [Abstract]
SERP liabilities	7,882	5,869
Derivative financial instruments	89	22
Total financial liabilities	7,971	5,891
Corporate Bonds [Member]
Financial Assets [Abstract]
Investments	5,413	3,897
Municipal Bonds [Member]
Financial Assets [Abstract]
Investments	2,248	1,811
Floating Rate Notes [Member]
Financial Assets [Abstract]
Investments	118	84
U.S. Treasury Bills [Member]
Financial Assets [Abstract]
Investments	388	404
Asset Backed Securities [Member]
Financial Assets [Abstract]
Investments	637
Saving Bonds [Member]
Financial Assets [Abstract]
Investments		77
Other [Member]
Financial Assets [Abstract]
Investments	2,283	2,755
Preferred Stocks [Member]
Financial Assets [Abstract]
Investments	475	742
Supplemental Employee Retirement Plan [Member] | Mutual Funds [Member]
Financial Assets [Abstract]
Investments	3,335	2,864
Supplemental Employee Retirement Plan [Member] | Money Market Fund [Member]
Financial Assets [Abstract]
Investments	92	445
Level 1 [Member]
Financial Assets [Abstract]
Derivative financial instruments	0	0
Total financial assets	9,821	8,372
Financial Liabilities [Abstract]
SERP liabilities	0	0
Derivative financial instruments	0	0
Total financial liabilities	0	0
Level 1 [Member] | Corporate Bonds [Member]
Financial Assets [Abstract]
Investments	5,413	3,756
Level 1 [Member] | Municipal Bonds [Member]
Financial Assets [Abstract]
Investments	0	0
Level 1 [Member] | Floating Rate Notes [Member]
Financial Assets [Abstract]
Investments	118	84
Level 1 [Member] | U.S. Treasury Bills [Member]
Financial Assets [Abstract]
Investments	388	404
Level 1 [Member] | Asset Backed Securities [Member]
Financial Assets [Abstract]
Investments	0
Level 1 [Member] | Saving Bonds [Member]
Financial Assets [Abstract]
Investments		77
Level 1 [Member] | Other [Member]
Financial Assets [Abstract]
Investments	0	0
Level 1 [Member] | Preferred Stocks [Member]
Financial Assets [Abstract]
Investments	475	742
Level 1 [Member] | Supplemental Employee Retirement Plan [Member] | Mutual Funds [Member]
Financial Assets [Abstract]
Investments	3,335	2,864
Level 1 [Member] | Supplemental Employee Retirement Plan [Member] | Money Market Fund [Member]
Financial Assets [Abstract]
Investments	92	445
Level 2 [Member]
Financial Assets [Abstract]
Derivative financial instruments	144	1,265
Total financial assets	5,312	5,972
Financial Liabilities [Abstract]
SERP liabilities	7,882	5,869
Derivative financial instruments	89	22
Total financial liabilities	7,971	5,891
Level 2 [Member] | Corporate Bonds [Member]
Financial Assets [Abstract]
Investments	0	141
Level 2 [Member] | Municipal Bonds [Member]
Financial Assets [Abstract]
Investments	2,248	1,811
Level 2 [Member] | Floating Rate Notes [Member]
Financial Assets [Abstract]
Investments	0	0
Level 2 [Member] | U.S. Treasury Bills [Member]
Financial Assets [Abstract]
Investments	0	0
Level 2 [Member] | Asset Backed Securities [Member]
Financial Assets [Abstract]
Investments	637
Level 2 [Member] | Saving Bonds [Member]
Financial Assets [Abstract]
Investments		0
Level 2 [Member] | Other [Member]
Financial Assets [Abstract]
Investments	2,283	2,755
Level 2 [Member] | Preferred Stocks [Member]
Financial Assets [Abstract]
Investments	0	0
Level 2 [Member] | Supplemental Employee Retirement Plan [Member] | Mutual Funds [Member]
Financial Assets [Abstract]
Investments	0	0
Level 2 [Member] | Supplemental Employee Retirement Plan [Member] | Money Market Fund [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member]
Financial Assets [Abstract]
Derivative financial instruments	0	0
Total financial assets	0	0
Financial Liabilities [Abstract]
SERP liabilities	0	0
Derivative financial instruments	0	0
Total financial liabilities	0	0
Level 3 [Member] | Corporate Bonds [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | Municipal Bonds [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | Floating Rate Notes [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | U.S. Treasury Bills [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | Asset Backed Securities [Member]
Financial Assets [Abstract]
Investments	0
Level 3 [Member] | Saving Bonds [Member]
Financial Assets [Abstract]
Investments		0
Level 3 [Member] | Other [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | Preferred Stocks [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | Supplemental Employee Retirement Plan [Member] | Mutual Funds [Member]
Financial Assets [Abstract]
Investments	0	0
Level 3 [Member] | Supplemental Employee Retirement Plan [Member] | Money Market Fund [Member]
Financial Assets [Abstract]
Investments	$ 0	$ 0

Investments (Details)

Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	$ 15,292	$ 13,423
Gross Unrealized Gains	63	116
Gross Unrealized Losses	366	460
Fair Value (Net Carrying Amount)	14,989	13,079
Net unrealized gains or losses incurred	(107)	(429)	$ (17)
Trading Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	3,980	4,160
Gross Unrealized Gains	40	79
Gross Unrealized Losses	118	188
Fair Value (Net Carrying Amount)	3,902	4,051
Trading Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	11,312	9,263
Gross Unrealized Gains	23	37
Gross Unrealized Losses	248	272
Fair Value (Net Carrying Amount)	$ 11,087	$ 9,028

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Beginning Balance	$ 30,835	$ 31,995
Acquisition	12,632
Purchase price adjustment		(178)
Foreign currency translation	(2,663)	(982)
Ending Balance	40,804	30,835
Infrastructure Group [Member]
Goodwill [Roll Forward]
Beginning Balance	8,481	8,584
Acquisition	0
Purchase price adjustment		0
Foreign currency translation	(33)	(103)
Ending Balance	8,448	8,481
Aggregate and Mining Group [Member]
Goodwill [Roll Forward]
Beginning Balance	22,354	23,411
Acquisition	0
Purchase price adjustment		(178)
Foreign currency translation	(2,630)	(879)
Ending Balance	19,724	22,354
Energy Group [Member]
Goodwill [Roll Forward]
Beginning Balance	0	0
Acquisition	12,632
Purchase price adjustment		0
Foreign currency translation	0	0
Ending Balance	12,632	0
Corporate [Member]
Goodwill [Roll Forward]
Beginning Balance	0	0
Acquisition	0
Purchase price adjustment		0
Foreign currency translation	0	0
Ending Balance	$ 0	$ 0

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Intangible Assets [Abstract]
Amortization expense on intangible assets	$ 3,562	$ 2,953	$ 2,735
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	38,820	22,934
Accumulated Amortization	12,177	9,357
Net Carrying Value	26,643	13,577
Expected amortization expense over the next five years [Abstract]
2,017	3,514
2,018	3,246
2,019	2,717
2,020	2,531
2,021	2,329
Thereafter	12,306
Dealer Network and Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	26,035	13,111
Accumulated Amortization	7,584	5,552
Net Carrying Value	18,451	7,559
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	7,021	4,857
Accumulated Amortization	1,362	956
Net Carrying Value	5,659	3,901
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	5,764	4,966
Accumulated Amortization	3,231	2,849
Net Carrying Value	$ 2,533	$ 2,117

Property and Equipment (Details

Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Oct. 31, 2015
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ (220,444)	$ (203,471)
Total	180,538	170,206
Depreciation expense	20,818	20,744	$ 21,343
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	14,768	12,628
Building and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	140,229	132,353
Manufacturing and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	231,816	214,545
Aviation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 14,169	14,151
Loudon Facility [Member]
Long Lived Assets Held-for-sale [Line Items]
Costs related to facility closing		1,500
Loudon Facility [Member] | Cost of Sales [Member]
Long Lived Assets Held-for-sale [Line Items]
Costs related to facility closing		999
Loudon Facility [Member] | Selling, General and Administrative Expenses [Member]
Long Lived Assets Held-for-sale [Line Items]
Costs related to facility closing		$ 501
Land and Building [Member]
Long Lived Assets Held-for-sale [Line Items]
Net sales price of facility				$ 9,599

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Leases [Abstract]
Rental expense charged to operations under operating leases	$ 2,792	$ 2,786	$ 2,544
Minimum rental commitments for all noncancelable operating leases [Abstract]
2,017	1,337
2,018	978
2,019	669
2,020	465
2,021	177
Thereafter	21
Total	$ 3,647

Debt (Details)

Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Line of Credit Facility [Line Items]
Short term borrowings	$ 4,632	$ 0
Astec Brazil's loans [Abstract]
Current maturities of long-term debt	2,538	4,528
Long-term debt	4,116	5,154
Osborn [Member]
Line of Credit Facility [Line Items]
Amount of credit facility	$ 6,913
Unused facility fee as a percentage of line of credit	0.75%
Short term borrowings	$ 4,632
Performance bank guarantee, subsidiary obligations to fulfill contracts	$ 904
Under utilized facility resulting in unused facility fee	50.00%
Available credit under the facility	$ 1,377
Interest rate at period end	10.50%
Astec Brazil Working Capital Loans [Member]
Line of Credit Facility [Line Items]
Borrowing outstanding	$ 5,485
Astec Brazil Working Capital Loans [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Maturity date	Nov. 30, 2018
Interest rate at period end	10.40%
Astec Brazil Working Capital Loans [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Maturity date	Apr. 30, 2024
Interest rate at period end	11.00%
Astec Brazil Equipment Financing [Member]
Line of Credit Facility [Line Items]
Term of credit facility	5 years
Loan amount	$ 1,169
Astec Brazil Equipment Financing [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Maturity date	Sep. 30, 2018
Debt instrument, interest rate	3.50%
Astec Brazil Equipment Financing [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Maturity date	Apr. 30, 2020
Debt instrument, interest rate	16.30%
Astec Brazil Working Capital Loans and Equipment Financing [Member]
Astec Brazil's loans [Abstract]
Current maturities of long-term debt	$ 2,538
Long-term debt	4,116
2,017	2,538
2,018	2,513
2,019	492
2,020	259
2,021	256
Thereafter	$ 596
South American Prime Rate [Member] | Osborn [Member]
Line of Credit Facility [Line Items]
Differential rate (less than prime rate)	0.25%
Wells Fargo [Member]
Line of Credit Facility [Line Items]
Term of credit facility	5 years
Maturity date	Apr. 30, 2017
Contingent liabilities for letters of credit issued on behalf of foreign subsidiaries	$ 8,876
Line of credit, additional borrowing capacity	$ 91,124
Interest rate at period end	1.53%
Borrowing outstanding	$ 0	$ 0
Wells Fargo [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Amount of credit facility	100,000
Sub-limit for letters of credit	$ 25,000
Wells Fargo [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Additional rate over base, percentage	0.75%
Unused facility fee as a percentage of line of credit	0.175%
Astec Wells Fargo partially guarantee [Member] | Astec Brazil Working Capital Loans [Member]
Line of Credit Facility [Line Items]
Contingent liabilities for letters of credit issued on behalf of foreign subsidiaries	$ 6,200

Product Warranty Reserves (Deta

Product Warranty Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Product warranty reserves [Roll Forward]
Reserve balance, beginning of year	$ 9,100	$ 10,032	$ 12,716
Warranty liabilities accrued	18,912	13,743	12,796
Warranty liabilities settled	(15,125)	(14,177)	(15,563)
Other	269	(498)	83
Reserve balance, end of year	$ 13,156	$ 9,100	$ 10,032
Minimum [Member]
Product Warranty Liability [Line Items]
Product warranty reserve term	3 months
Maximum [Member]
Product Warranty Liability [Line Items]
Product warranty reserve term	2 years

Accrued Loss Reserves (Details)

Accrued Loss Reserves (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued Loss Reserves [Abstract]
Total accrued loss reserves	$ 7,892	$ 7,663
Accrued loss reserves included in other long-term liabilities	$ 5,040	$ 4,825

Pension and Retirement Plans (D

Pension and Retirement Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Information about Plan Assets [Abstract]
Actual allocations	100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plan, Information about Plan Assets [Abstract]
Actual allocations	63.60%	66.00%
Target Plan Asset Allocations, Minimum	53.00%	53.00%
Target Plan Asset Allocations, Maximum	73.00%	73.00%
Debt Securities [Member]
Defined Benefit Plan, Information about Plan Assets [Abstract]
Actual allocations	33.50%	30.70%
Target Plan Asset Allocations, Minimum	21.00%	21.00%
Target Plan Asset Allocations, Maximum	41.00%	41.00%
Money Market Funds [Member]
Defined Benefit Plan, Information about Plan Assets [Abstract]
Actual allocations	2.90%	3.30%
Target Plan Asset Allocations, Minimum	0.00%	0.00%
Target Plan Asset Allocations, Maximum	15.00%	15.00%
Pension Benefits [Member]
Change in benefit obligation [Roll forward]
Benefit obligation, beginning of year	$ 15,565	$ 15,986
Interest cost	650	596	$ 620
Actuarial (gain)/loss	514	(417)
Benefits paid	(625)	(600)
Benefit obligation, end of year	16,104	15,565	15,986
Accumulated benefit obligation	16,104	15,565
Change in plan assets [Roll forward]
Fair value of plan assets, beginning of year	12,688	13,283
Actual gain/(loss) on plan assets	763	(279)
Employer contribution	415	284
Benefits paid	(625)	(600)
Fair value of plan assets, end of year	13,241	12,688	13,283
Funded status, end of year	(2,863)	(2,877)
Amounts recognized in the consolidated balance sheets [Abstract]
Noncurrent liabilities	(2,863)	(2,877)
Net amount recognized	(2,863)	(2,877)
Amounts recognized in accumulated other comprehensive loss consist of [Abstract]
Net loss	6,152	6,098
Net amount recognized	$ 6,152	$ 6,098
Weighted average assumptions used to determine benefit obligations as of December 31 [Abstract]
Discount rate	4.00%	4.28%
Expected return on plan assets	6.25%	7.00%
Rate of compensation increase
Components of net periodic benefit cost [Abstract]
Interest cost	$ 650	$ 596	620
Expected return on plan assets	(782)	(840)	(816)
Amortization of actuarial loss	480	500	295
Net periodic benefit cost	348	256	99
Other changes in plan assets and benefit obligations recognized in other comprehensive income [Abstract]
Net actuarial loss for the year	533	702	2,115
Amortization of net loss	(480)	(500)	(295)
Total recognized in other comprehensive income	53	202	1,820
Total recognized in net periodic benefit cost and other comprehensive income	$ 401	$ 458	$ 1,919
Weighted average assumptions used to determine net periodic benefit cost for years ended December 31 [Abstract]
Discount rate	4.28%	3.81%	4.60%
Expected return on plan assets	7.00%	7.00%	7.00%
Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year [Abstract]
Company's expectation to contribute to the plans during the next year	$ 0
Future amortization of a net loss in pension benefits in next year	(530)
Estimated future benefit payments [Abstract]
2,017	730
2,018	780
2,019	840
2,020	870
2,021	900
2022 - 2025	$ 4,780

Pension and Retirement Plans, D

Pension and Retirement Plans, Deferred Compensation Arrangement with Individual, Postretirement Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Company's 401(K) contributions for the year	$ 5,943	$ 5,292	$ 5,134
SERP [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Change in the fair market value of Company stock held in the SERP	1,742	241	$ 74
Cost [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Plan Assets	5,432	5,180
Cost [Member] | Company Stock [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Plan Assets	1,958	1,778
Cost [Member] | Equity Securities [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Plan Assets	3,474	3,402
Market [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Plan Assets	7,882	5,869
Market [Member] | Company Stock [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Plan Assets	3,428	2,560
Market [Member] | Equity Securities [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Plan Assets	$ 4,454	$ 3,309

Derivative Financial Instrume58

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	$ 144	$ 935
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets		330
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	89	$ 22
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Average notional amount	$ 11,784

Derivative Financial Instrume59

Derivative Financial Instruments, Gain (Loss) recognized in income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss) of derivative financial instruments recognized in income, net	$ (336)	$ 606	$ 438

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income before income taxes [Abstract]
United States	$ 87,326	$ 57,846	$ 57,651
Foreign	(231)	(5,873)	(4,045)
Income before income taxes	87,095	51,973	53,606
Current provision [Abstract]
Federal	30,623	19,758	18,713
State	4,098	2,553	2,992
Foreign	907	255	243
Total current provision	35,628	22,566	21,948
Deferred provision (benefit) [Abstract]
Federal	(2,653)	(1,183)	(1,627)
State	(1,213)	(275)	(222)
Foreign	345	(1,101)	(699)
Total deferred benefit	(3,521)	(2,559)	(2,548)
Total provision (benefit) [Abstract]
Federal	27,970	18,575	17,086
State	2,885	2,278	2,770
Foreign	1,252	(846)	(456)
Total tax provision	32,107	20,007	19,400
Reconciliation of provision for income taxes [Abstract]
Tax at the statutory federal income tax rate	30,483	18,191	18,762
Qualified production activity deduction	(1,641)	(1,174)	(1,360)
State income tax, net of federal income tax	1,876	1,386	1,727
Other permanent differences	673	393	840
Research and development tax credits	(785)	(291)	(1,323)
Change in valuation allowance	1,638	2,036	1,675
Other items	(137)	(534)	(921)
Total tax provision	32,107	20,007	19,400
Deferred tax assets [Abstract]
Inventory reserves	8,507	7,828
Warranty reserves	4,527	2,852
Bad debt reserves	456	436
State tax loss carryforwards	3,403	3,006
Accrued vacation	2,351	2,174
SERP	299	275
Deferred compensation	2,124	1,328
Restricted stock units	1,845	1,893
Pension and post-employment benefits	2,530	2,571
Foreign net operating losses	5,461	5,134
Other	2,516	9,315
Valuation allowances	(8,280)	(8,065)
Total deferred tax assets	25,739	28,747
Deferred tax liabilities [Abstract]
Property and equipment	20,167	19,799
Amortization	1,244	1,961
Goodwill	1,605	1,835
Pension	1,205	1,305
Outside basis differences	511	0
Total deferred tax liabilities	24,732	24,900
Total net deferred assets	1,007	3,847
Operating Loss Carryforwards [Line Items]
Recognized tax benefits related to penalties and interest settled for less than previously accrued	16	123
Unrecognized tax benefits, if recognized that would effect the effective rate	$ 238	618
Period company does not expect significant increase or decrease to total amount of unrecognized tax benefits	12 months
Reconciliation on unrecognized tax benefits [Roll forward]
Balance, beginning of year	$ 603	2,585	1,933
Additions for tax positions related to the current year	73	206	127
Additions for tax positions related to prior years	162	549	525
Reductions due to lapse of statutes of limitations	(16)	(162)	0
Decreases related to settlements with tax authorities	(584)	(2,575)	0
Balance, end of year	238	$ 603	$ 2,585
Breaker Technology, Ltd. [Member]
Operating Loss Carryforwards [Line Items]
Undistributed earnings of foreign subsidiaries	10,500
Telestack Limited [Member]
Operating Loss Carryforwards [Line Items]
Undistributed earnings of foreign subsidiaries	2,100
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Increase in valuation allowance on operating loss carryforwards	183
Increase in other deferred tax assets valuation allowance	$ 32
Internal Revenue Service (IRS) [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2017
Internal Revenue Service (IRS) [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2029
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 79,856
Tax credit carryforward	65
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 17,339

Contingent Matters (Details)

Contingent Matters (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)Party
Contingent Matters [Abstract]
Liability recorded related to guarantees	$ 332
Guarantor Obligations [Line Items]
Contingent liability for customer debt	$ 6,516
Maximum maturity date of customer debt	Dec. 31, 2020
Number of parties involved in EPA cleanup | Party	300
Maximum [Member]
Guarantor Obligations [Line Items]
Contingent liabilities for letters of credit	$ 9,977
Letter of Credit Wells Fargo [Member]
Guarantor Obligations [Line Items]
Contingent liabilities for letters of credit	$ 8,876
Letter of Credit Wells Fargo [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Letter of credit expiration date	Oct. 31, 2020
Astec Brazil Working Capital Loans [Member]
Guarantor Obligations [Line Items]
Contingent liabilities for letters of credit issued on behalf of foreign subsidiaries	$ 6,200
Letters of Credit Osborn [Member]
Guarantor Obligations [Line Items]
Performance bank guarantee, subsidiary obligations to fulfill contracts	904
Letters of Credit Telestack [Member]
Guarantor Obligations [Line Items]
Performance bank guarantee, subsidiary obligations to fulfill contracts	$ 197

Shareholders' Equity (Details)

Shareholders' Equity (Details) - Restricted Stock Units (RSUs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restricted stock units under the 2006 and 2011 Incentive Plan [Abstract]
Maximum shares granted to employees (in shares)	700
Award vesting period for RSUs granted through February 2016	5 years
Future award vesting period	3 years
Fair value of vested RSU's	$ 3,289	$ 2,785	$ 3,045
Increase in tax benefit	220	336	470
Compensation expense	2,426	1,019	961
Income tax benefits	934	$ 362	348
Anticipated additional compensation costs to be recognized in future periods	$ 4,712
Maximum date compensation costs will be recognized in future periods	Dec. 31, 2021
Weighted average period over which additional compensation cost will be expensed	3 years 2 months 12 days
Restricted stock units [Roll Forward]
Unvested restricted stock units, beginning of year (in shares)	147
Units granted (in shares)	44
Units forfeited (in shares)	(1)
Units vested (in shares)	(78)
Unvested restricted stock units, end of year (in shares)	112	147
Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value, beginning balance (in dollars per share)	$ 36.83
Weighted average grant date fair value, granted (in dollars per share)	44.52
Weighted average grant date fair value, forfeited (in dollars per share)	39.10
Weighted average grant date fair value, vested (in dollars per share)	34.42
Weighted average grant date fair value, ending balance (in dollars per share)	$ 41.48	$ 36.83
Grant date fair value of restricted stock units granted	$ 1,946	$ 937	$ 561

Operations by Industry Segmen63

Operations by Industry Segment and Geographic Area (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)SegmentBusinessunitCustomer	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Operations by Industry Segment and Geographic Area [Abstract]
Number of reportable segments | Segment	3
Sales [Abstract]
Total consolidated sales	$ 1,147,431	$ 983,157	$ 975,595
Interest expense	1,395	1,611	720
Depreciation and amortization	24,813	24,078	24,376
Income taxes	32,107	20,007	19,400
Profit (loss)	54,512	31,566	37,423
Assets	1,864,048	1,627,514	1,580,307
Capital expenditures	27,084	21,288	24,832
Net income attributable to controlling interest [Abstract]
Net loss attributable to non-controlling interest	171	831	252
Total consolidated net income attributable to controlling interest	55,159	32,797	34,458
Assets [Abstract]
Total assets	$ 843,601	777,353	802,265
Infrastructure Group [Member]
Segment Reporting Information [Line Items]
Number of business units | Businessunit	5
Number of business units which design, engineer, manufacture and market product lines | Businessunit	3
Number of business units that operate as Company-owned dealers | Businessunit	2
Number of major customers | Customer	1
Infrastructure Group [Member] | Revenue [Member]
Segment Reporting Information [Line Items]
Revenue percentage of total company sales	11.80%
Sales [Abstract]
Total consolidated sales	$ 135,187
Aggregate and Mining Group [Member]
Segment Reporting Information [Line Items]
Number of business units | Businessunit	8
Energy Group [Member]
Segment Reporting Information [Line Items]
Number of business units | Businessunit	5
Reportable Segments [Member]
Net income attributable to controlling interest [Abstract]
Total profit (other losses)	$ 110,504	68,189	72,693
Assets [Abstract]
Total assets	1,446,697	1,321,003	1,278,225
Reportable Segments [Member] | Infrastructure Group [Member]
Sales [Abstract]
Total consolidated sales	608,908	428,737	386,356
Interest expense	31	258	31
Depreciation and amortization	7,205	6,907	7,045
Income taxes	3,033	1,224	1,365
Profit (loss)	71,482	33,890	29,477
Assets	657,225	567,936	539,794
Capital expenditures	14,451	8,043	5,375
Reportable Segments [Member] | Aggregate and Mining Group [Member]
Sales [Abstract]
Total consolidated sales	359,760	370,813	384,883
Interest expense	948	1,005	463
Depreciation and amortization	10,033	10,719	10,120
Income taxes	664	764	1,235
Profit (loss)	34,877	30,690	32,900
Assets	518,351	496,089	494,428
Capital expenditures	7,437	8,807	16,169
Reportable Segments [Member] | Energy Group [Member]
Sales [Abstract]
Total consolidated sales	178,763	183,607	204,356
Interest expense	4	10	11
Depreciation and amortization	6,655	5,553	6,358
Income taxes	437	(129)	348
Profit (loss)	4,145	3,609	10,316
Assets	271,121	256,978	244,003
Capital expenditures	5,018	4,049	2,875
Reportable Segments [Member] | Corporate Group [Member]
Sales [Abstract]
Total consolidated sales	0	0	0
Interest expense	412	338	215
Depreciation and amortization	920	899	853
Income taxes	27,973	18,148	16,452
Profit (loss)	(55,992)	(36,623)	(35,270)
Assets	417,351	306,511	302,082
Capital expenditures	178	389	413
Corporate, Non-Segment [Member]
Net income attributable to controlling interest [Abstract]
Total profit (other losses)	(55,992)	(36,623)	(35,270)
Assets [Abstract]
Total assets	417,351	306,511	302,082
Segment Reconciling Items [Member]
Assets [Abstract]
Total assets	(52,292)	(35,331)	(27,470)
Elimination of investment in subsidiaries	(272,766)	(223,500)	(227,051)
Intersegment Eliminations [Member]
Sales [Abstract]
Total consolidated sales	76,934	67,658	77,218
Net income attributable to controlling interest [Abstract]
Total profit (other losses)	476	400	(3,217)
Assets [Abstract]
Elimination of intercompany profit in inventory	(7,020)	(7,496)	(7,896)
Elimination of intercompany receivables	(688,369)	(583,834)	(515,625)
Intersegment Eliminations [Member] | Infrastructure Group [Member]
Sales [Abstract]
Total consolidated sales	16,957	22,947	26,661
Intersegment Eliminations [Member] | Aggregate and Mining Group [Member]
Sales [Abstract]
Total consolidated sales	35,031	28,701	33,009
Intersegment Eliminations [Member] | Energy Group [Member]
Sales [Abstract]
Total consolidated sales	24,946	16,010	17,548
Intersegment Eliminations [Member] | Corporate Group [Member]
Sales [Abstract]
Total consolidated sales	$ 0	$ 0	$ 0

Operations by Industry Segmen64

Operations by Industry Segment and Geographic Area, External Customers and Long-Lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	$ 1,147,431	$ 983,157	$ 975,595
Long-lived assets by geographic region	180,538	170,206
Reportable Geographical Components [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	941,273	722,287	654,230
Long-lived assets by geographic region	151,470	141,727
Reportable Geographical Components [Member] | Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	37,539	54,321	61,898
Long-lived assets by geographic region	2,860	2,987
Reportable Geographical Components [Member] | Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	31,557	45,671	47,940
Reportable Geographical Components [Member] | Australia and Oceana [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	29,948	29,995	34,772
Reportable Geographical Components [Member] | South America (excluding Brazil) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	28,204	32,454	49,797
Reportable Geographical Components [Member] | Other European Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	19,198	23,867	12,365
Reportable Geographical Components [Member] | Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	13,489	6,990	9,993
Reportable Geographical Components [Member] | Japan and Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	10,825	3,574	4,377
Reportable Geographical Components [Member] | Other Asian Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	6,926	9,513	17,018
Reportable Geographical Components [Member] | Central America (excluding Mexico) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	5,904	4,404	9,275
Reportable Geographical Components [Member] | China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	4,595	1,330	7,451
Reportable Geographical Components [Member] | Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	4,300	8,376	12,869
Long-lived assets by geographic region	11,288	9,780
Reportable Geographical Components [Member] | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	3,403	18,995	13,327
Reportable Geographical Components [Member] | Post-Soviet States (excluding Russia) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	3,293	8,345	8,245
Reportable Geographical Components [Member] | Russia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	3,185	8,466	25,589
Reportable Geographical Components [Member] | West Indies [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	2,994	1,532	4,478
Reportable Geographical Components [Member] | India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	318	2,706	1,743
Reportable Geographical Components [Member] | Other Foreign Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	480	331	228
Reportable Geographical Components [Member] | Total Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated sales	206,158	260,870	$ 321,365
Long-lived assets by geographic region	29,068	28,479
Reportable Geographical Components [Member] | South Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets by geographic region	5,372	5,116
Reportable Geographical Components [Member] | Northern Ireland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets by geographic region	4,279	5,116
Reportable Geographical Components [Member] | Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets by geographic region	4,234	4,351
Reportable Geographical Components [Member] | Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets by geographic region	$ 1,035	$ 1,129

Accumulated Other Comprehensi65

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
After Tax components of accumulated comprehensive income [Abstract]
Foreign currency translation adjustment	$ (27,839)	$ (19,891)
Unrecognized pension and post-retirement benefit cost, net of tax of $2,261 and $2,232, respectively	(3,723)	(3,673)
Accumulated other comprehensive loss	(31,562)	(23,564)
Unrecognized pension and post-retirement benefit cost, tax	$ 2,261	$ 2,232

Other Income (Expense) - Net (D

Other Income (Expense) - Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Income (Expense) - Net [Abstract]
Investment income (loss)	$ (276)	$ (381)	$ 64
Licensing fees	546	641	831
Income from life insurance policies	0	1,204	0
Other	259	1,591	312
Total	$ 529	$ 3,055	$ 1,207

Business Combinations (Details)

Business Combinations (Details) BTU in Thousands, $ in Thousands	Apr. 02, 2014USD ($)	Aug. 31, 2016USD ($)	Dec. 31, 2016USD ($)BTU	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Business Acquisition [Line Items]
Goodwill			$ 40,804	$ 30,835	$ 31,995
Trade Name [Member]
Business Acquisition [Line Items]
Useful life of intangible assets			15 years
Power Flame Incorporated [Member]
Business Acquisition [Line Items]
Date of acquisition		Aug. 31, 2016
Cash purchase price		$ 39,765
Amount held in escrow		$ 4,000
Period of time for amount held in escrow		2 years
Goodwill		$ 12,632
Other intangible assets		$ 17,990
Power Flame Incorporated [Member] | Minimum [Member]
Business Acquisition [Line Items]
Hourly output of gas oil and low NOx burners | BTU			400
Power Flame Incorporated [Member] | Maximum [Member]
Business Acquisition [Line Items]
Hourly output of gas oil and low NOx burners | BTU			120,000
Power Flame Incorporated [Member] | Technology [Member]
Business Acquisition [Line Items]
Useful life of intangible assets		19 years
Power Flame Incorporated [Member] | Trade Name [Member]
Business Acquisition [Line Items]
Useful life of intangible assets		15 years
Power Flame Incorporated [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Useful life of intangible assets		18 years
Telestack Limited [Member]
Business Acquisition [Line Items]
Date of acquisition			Apr. 1, 2014
Percentages of stock acquired	100.00%
Cash purchase price	$ 36,183
Amount held in escrow	$ 2,500
Period of time for amount held in escrow	1 year
Decrease in purchase price	$ (178)
Goodwill	18,078
Other intangible assets	$ 14,445
Telestack Limited [Member] | Trade Name [Member]
Business Acquisition [Line Items]
Useful life of intangible assets	15 years
Telestack Limited [Member] | Patents [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful life of intangible assets	5 years
Telestack Limited [Member] | Patents [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful life of intangible assets	10 years
Telestack Limited [Member] | Noncompete agreements [Member]
Business Acquisition [Line Items]
Useful life of intangible assets	3 years
Telestack Limited [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Useful life of intangible assets	11 years