Aegion 10-Q 3 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 26, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Aegion Corp
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		33,491,406
Amendment Flag	false
Entity Central Index Key	353,020
Entity Filer Category	Large Accelerated Filer
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenues	$ 325,175	$ 293,908
Cost of revenues	257,763	239,494
Gross profit	67,412	54,414
Operating expenses	52,746	50,725
Acquisition-related expenses	533	1,031
Restructuring charges	0	6,797
Operating income (loss)	14,133	(4,139)
Other income (expense):
Interest expense	(4,047)	(3,615)
Interest income	49	32
Other	(387)	(973)
Total other expense	(4,385)	(4,556)
Income (loss) before taxes on income	9,748	(8,695)
Taxes (benefit) on income (loss)	1,995	(4,746)
Net income (loss)	7,753	(3,949)
Non-controlling interests (income) loss	(1,882)	157
Net income (loss) attributable to Aegion Corporation	$ 5,871	$ (3,792)
Earnings (loss) per share attributable to Aegion Corporation:
Net income (loss) per share, basic (in dollars per share)	$ 0.17	$ (0.11)
Net income (loss) per share, diluted (in dollars per share)	$ 0.17	$ (0.11)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 7,753	$ (3,949)
Other comprehensive income (loss):
Currency translation adjustments		3,869	(557)
Deferred gain (loss) on hedging activity, net of tax	[1]	483	(3,573)
Pension activity, net of tax	[2]	(5)	(122)
Total comprehensive income (loss)		12,100	(8,201)
Comprehensive income attributable to non-controlling interests		(1,869)	(85)
Comprehensive income (loss) attributable to Aegion Corporation		10,231	(8,286)
Deferred gain on hedging activity, tax		321	(2,392)
Pension activity, tax (benefit) expense		$ (1)	$ (30)
[1]	Amounts presented net of tax of $321 and $(2,392) for the quarters ended March 31, 2017 and 2016, respectively.
[2]	Amounts presented net of tax of $(1) and $(30) for the quarters ended March 31, 2017 and 2016, respectively.

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 87,602	$ 129,500
Restricted cash	1,573	4,892
Receivables, net of allowances of $5,303 and $6,098, respectively	207,943	186,016
Retainage	31,237	33,643
Costs and estimated earnings in excess of billings	75,535	62,401
Inventories	69,113	63,953
Prepaid expenses and other current assets	38,903	51,832
Total current assets	511,906	532,237
Property, plant & equipment, less accumulated depreciation	156,690	156,747
Other assets
Goodwill	302,749	298,619
Identified intangible assets, less accumulated amortization	193,102	194,911
Deferred income tax assets	1,584	1,848
Other assets	9,371	9,220
Total other assets	506,806	504,598
Total Assets	1,175,402	1,193,582
Current liabilities
Accounts payable	64,713	63,058
Accrued expenses	71,821	85,010
Billings in excess of costs and estimated earnings	44,716	62,698
Current maturities of long-term debt	22,020	19,835
Total current liabilities	203,270	230,601
Long-term debt, less current maturities	354,427	350,785
Deferred income tax liabilities	23,731	23,339
Other non-current liabilities	13,102	12,674
Total liabilities	594,530	617,399
(See Commitments and Contingencies: Note 9)
Equity
Preferred stock, undesignated, $.10 par – shares authorized 2,000,000; none outstanding	0	0
Common stock, $.01 par – shares authorized 125,000,000; shares issued and outstanding 33,604,854 and 33,956,304, respectively	336	340
Additional paid-in capital	159,191	166,598
Retained earnings	460,933	455,062
Accumulated other comprehensive loss	(49,140)	(53,500)
Total stockholders’ equity	571,320	568,500
Non-controlling interests	9,552	7,683
Total equity	580,872	576,183
Total Liabilities and Equity	$ 1,175,402	$ 1,193,582

Consolidated Balance Sheets (U5

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 5,303	$ 6,098
Preferred stock, undesignated, par (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, undesignated, shares authorized (in Shares)	2,000,000	2,000,000
Preferred stock, undesignated, shares outstanding (in Shares)	0	0
Common stock, par (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in Shares)	125,000,000	125,000,000
Common stock, shares issued (in shares)	33,604,854	33,956,304
Common stock, shares outstanding (in Shares)	33,604,854	33,956,304

Consolidated Statements of Equi

Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non- Controlling Interests
Balance (in shares) at Dec. 31, 2015		36,053,499
Balance at Dec. 31, 2015	$ 594,556	$ 361	$ 199,951	$ 425,574	$ (47,861)	$ 16,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(3,949)			(3,792)		(157)
Issuance of common stock upon stock option exercises (in shares)		18,193
Issuance of common stock upon stock option exercises, including tax benefit	38		38
Issuance of shares pursuant to restricted stock units (in shares)		9,733
Forfeitures of restricted shares (in shares)		(14,528)
Shares repurchased and retired (in shares)		(910,656)
Shares repurchased and retired	(16,325)	$ (9)	(16,316)
Equity-based compensation expense	2,363		2,363
Sale of non-controlling interest	(7,278)					(7,278)
Currency translation adjustment and derivative transactions, net	(4,252)				(4,494)	242
Balance (in shares) at Mar. 31, 2016		35,156,241
Balance at Mar. 31, 2016	$ 565,153	$ 352	186,036	421,782	(52,355)	9,338
Balance (in shares) at Dec. 31, 2016	33,956,304	33,956,304
Balance at Dec. 31, 2016	$ 576,183	$ 340	166,598	455,062	(53,500)	7,683
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 7,753			5,871		1,882
Issuance of common stock upon stock option exercises (in shares)	0
Issuance of shares pursuant to restricted stock units (in shares)		62,279
Issuance of shares pursuant to restricted stock units	$ 1	$ 1
Issuance of shares pursuant to performance units (in shares)		49,672
Forfeitures of restricted shares (in shares)		(1,084)
Shares repurchased and retired (in shares)		(462,317)
Shares repurchased and retired	(10,508)	$ (5)	(10,503)
Equity-based compensation expense	3,096		3,096
Currency translation adjustment and derivative transactions, net	$ 4,347				4,360	(13)
Balance (in shares) at Mar. 31, 2017	33,604,854	33,604,854
Balance at Mar. 31, 2017	$ 580,872	$ 336	$ 159,191	$ 460,933	$ (49,140)	$ 9,552

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ 7,753	$ (3,949)
Adjustments to reconcile to net cash used in operating activities:
Depreciation and amortization	11,852	11,376
Gain on sale of fixed assets	(116)	(499)
Equity-based compensation expense	3,096	2,363
Deferred income taxes	5,533	(1,187)
Non-cash restructuring charges	42	(212)
Loss on foreign currency transactions	378	1,131
Other	(62)	(485)
Changes in operating assets and liabilities (net of acquisitions):
Restricted cash related to operating activities	1,354	462
Receivables net, retainage and costs and estimated earnings in excess of billings	(30,257)	29,618
Inventories	(3,491)	(1,806)
Prepaid expenses and other assets	5,351	3,382
Accounts payable and accrued expenses	(9,988)	(39,086)
Billings in excess of costs and estimated earnings	(18,078)	(3,672)
Other operating	300	582
Net cash used in operating activities	(26,333)	(1,982)
Cash flows from investing activities:
Capital expenditures	(3,907)	(10,060)
Proceeds from sale of fixed assets	165	956
Patent expenditures	(289)	(541)
Restricted cash related to investing activities	2,000	(1,086)
Purchase of Underground Solutions, Inc., net of cash acquired	0	(85,167)
Other acquisition activity, net of cash acquired	(9,045)	(500)
Sale of interest in Bayou Perma-Pipe Canada, Ltd., net of cash disposed	0	4,599
Net cash used in investing activities	(11,076)	(91,799)
Cash flows from financing activities:
Proceeds from issuance of common stock upon stock option exercises	0	38
Repurchase of common stock	(10,508)	(16,325)
Payment of contingent consideration	500	0
Proceeds from line of credit	10,000	34,000
Principal payments on long-term debt	(4,375)	(4,375)
Net cash provided by (used in) financing activities	(5,383)	13,338
Effect of exchange rate changes on cash	894	(3,394)
Net decrease in cash and cash equivalents for the period	(41,898)	(83,837)
Cash and cash equivalents, beginning of period	129,500	211,696
Cash and cash equivalents, end of period	$ 87,602	$ 127,859

General

General	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	GENERAL The accompanying unaudited consolidated financial statements of Aegion Corporation and its subsidiaries (collectively, “Aegion” or the “Company”) reflect all adjustments (consisting only of normal recurring adjustments) that are, in the opinion of management, necessary for a fair statement of the Company’s financial position, results of operations and cash flows for the dates and periods presented. Results for interim periods are not necessarily indicative of the results to be expected during the remainder of the current year or for any future period. All significant intercompany related accounts and transactions have been eliminated in consolidation. The consolidated balance sheet as of December 31, 2016, which is derived from the audited consolidated financial statements, and the interim unaudited consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), the requirements of Form 10-Q and Article 10 of Regulation S-X and, consequently, do not include all information or footnotes required by GAAP for complete financial statements or all the disclosures normally made in an Annual Report on Form 10-K. Accordingly, the unaudited consolidated financial statements included herein should be read in conjunction with the audited consolidated financial statements and footnotes included in the Company’s 2016 Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 1, 2017. Acquisitions/Strategic Initiatives/Divestitures 2016 Restructuring On January 4, 2016, the Company’s board of directors approved a restructuring plan (the “2016 Restructuring”) to reduce the Company’s exposure to the upstream oil markets and to reduce consolidated expenses. The 2016 Restructuring repositioned Energy Services’ upstream operations in California, reduced Corrosion Protection’s upstream exposure by divesting its interest in a Canadian pipe coating joint venture, right-sized Corrosion Protection to compete more effectively and reduced corporate and other operating costs. See Note 3. Infrastructure Solutions Segment (“Infrastructure Solutions”) On March 1, 2017, the Company acquired Environmental Techniques Limited and its parent holding company, Killeen Trading Limited (collectively “Environmental Techniques”), for a purchase price of £6.5 million , approximately $8.0 million , which was funded from the Company’s international cash balances. The purchase price is subject to post-closing working capital adjustments and included £1.0 million , approximately $1.2 million , held in escrow as security for any post-closing purchase price adjustments and post-closing indemnification obligations of Environmental Techniques’s previous owners. Environmental Techniques provides trenchless drainage inspection, cleaning and rehabilitation throughout the United Kingdom and the Republic of Ireland . On July 1, 2016, the Company acquired Concrete Solutions Limited (“CSL”) and Building Chemical Supplies Limited (“BCS”), two New Zealand companies (collectively, “Concrete Solutions” ), for a purchase price paid at closing of NZD 7.5 million , approximately $5.5 million . The purchase price is subject to post-closing working capital adjustments and included NZD 0.5 million , approximately $0.4 million , held in escrow as security for post-closing purchase price adjustments and post-closing indemnification obligations of the previous owners. The sellers have the ability to earn up to an additional NZD 2.0 million , approximately $1.4 million , of proceeds based on reaching certain performance targets in 2017, 2018 and 2019. The transaction was funded from the Company’s cash balances. CSL provides structural strengthening, concrete repair and bridge jointing solutions primarily through application of fiber reinforced polymer ( “FRP” ) and injection resins and had served as a Fibrwrap ® certified applicator in New Zealand for a number of years. BCS imports and distributes materials, including fiber reinforced polymer, injection resins, repair mortars and protective coatings . On June 2, 2016, the Company acquired the cured-in-place pipe (“CIPP”) contracting operations of Leif M. Jensen A/S (“LMJ”), a Danish company and the Insituform licensee in Denmark since 2011. The purchase price was €2.9 million , approximately $3.2 million , and was funded from the Company’s international cash balances. On May 13, 2016, the Company acquired the operations and territories of Fyfe Europe S.A. and related companies (“Fyfe Europe”) for a purchase price of $3.0 million . The transaction was funded from the Company’s cash balances. Fyfe Europe held rights to provide Fibrwrap ® product engineering and support to installers and applicators of FRP systems in 72 countries throughout Europe, the Middle East and North Africa. The acquisition of these territories now provides the Company with worldwide rights to market, manufacture and install the patented Tyfo ® Fibrwrap ® FRP technology. On February 18, 2016, the Company acquired Underground Solutions, Inc. and its subsidiary, Underground Solutions Technologies Group, Inc. (collectively, “Underground Solutions”), for an initial purchase price of $85.0 million plus an additional $5.0 million for the value of the estimated tax benefits associated with Underground Solutions’ net operating loss carry forwards. The purchase price included $6.3 million held in escrow as security for the post-closing purchase price adjustments and post-closing indemnification obligations of Underground Solutions’ previous owners. The transaction was funded partially from the Company’s cash balances and partially from borrowings under the Company’s revolving credit facility. Underground Solutions provides infrastructure technologies for water, sewer and conduit applications. On October 6, 2014, the Company’s board of directors approved a realignment and restructuring plan (the “2014 Restructuring”) which included the decision to exit Insituform’s contracting markets in France, Switzerland, Hong Kong, Malaysia and Singapore. The Company has substantially completed all of the objectives related to the 2014 Restructuring. Corrosion Protection Segment (“Corrosion Protection”) On February 1, 2016, the Company sold its fifty-one percent ( 51% ) interest in its Canadian pipe coating joint venture, Bayou Perma-Pipe Canada, Ltd. (“BPPC”), to its joint venture partner, Perma-Pipe, Inc. The sale price was $9.6 million , which consisted of a $7.6 million payment at closing and a $2.0 million promissory note, which was paid on July 28, 2016. BPPC served as the Company’s pipe coating and insulation operation in Canada. The sale of its interest in BPPC was part of a broader effort by the Company to reduce its exposure in the North American upstream market in light of expectations for a prolonged low oil price environment. Purchase Price Accounting During the first quarter of 2017, the Company determined its preliminary accounting for Environmental Techniques and finalized its accounting for Underground Solutions. The accounting for Fyfe Europe, LMJ and Concrete Solutions is substantially complete with the exception of final working capital adjustments. As the Company completes its final accounting for these acquisitions, future adjustments related to working capital, deferred income taxes, definite-lived intangible assets and goodwill could occur. The goodwill and definite-lived intangible assets associated with the Fyfe Europe and LMJ acquisitions are deductible for tax purposes; whereas, the goodwill and definite-lived intangible assets associated with the Environmental Techniques, Underground Solutions and Concrete Solutions acquisitions are not deductible for tax purposes. Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions made the following contributions to the Company’s revenues and profits (in thousands): Quarter Ended March 31, 2017 Quarter Ended March 31, 2016 Environmental Techniques Underground Solutions (1) Fyfe LMJ Concrete Underground Solutions (2) Revenues $ 451 $ 6,525 $ 259 $ 1,337 $ 1,383 $ 4,666 Net income (loss) (102 ) (1,319 ) (58 ) (597 ) 50 (124 ) _____________________ (1) The reported net loss for Underground Solutions for the quarter ended March 31, 2017 includes an allocation of corporate expenses of $0.4 million . (2) The reported net loss for Underground Solutions for the quarter ended March 31, 2016 includes inventory step-up expense of $1.2 million recognized as part of the accounting for business combinations. The following pro forma summary presents combined information of the Company as if the Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions acquisitions had occurred at the beginning of the year preceding their acquisition (in thousands, except earnings per share): Quarters Ended March 31, 2017 (1) 2016 (2) Revenues $ 326,057 $ 302,869 Net income (loss) attributable to Aegion Corporation (3) 5,698 (3,330 ) Diluted earnings (loss) per share $ 0.17 $ (0.09 ) _____________________ (1) Includes pro-forma results related to Environmental Techniques. (2) Includes pro-forma results related to Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions. (3) Includes pro-forma adjustments for depreciation and amortization associated with acquired tangible and intangible assets, as if those assets were recorded at the beginning of the year preceding the acquisition date. The transaction purchase price to acquire Environmental Techniques was £6.5 million , approximately $8.0 million , which represented cash consideration paid at closing. The transaction purchase price to acquire Underground Solutions was $88.4 million , which included: (i) a payment at closing of $85.0 million ; (ii) a payment of $5.0 million for the value of the estimated tax benefits associated with Underground Solutions’ net operating loss carry forwards; and (iii) working capital adjustments of $1.6 million payable to the Company. The transaction purchase price to acquire Fyfe Europe was $3.0 million , which represented cash consideration paid at closing of $2.8 million plus $0.2 million of deferred contingent consideration, which was paid during the first quarter of 2017. The transaction purchase price to acquire LMJ was €2.9 million , approximately $3.2 million , which was paid at closing. The transaction purchase price to acquire Concrete Solutions was NZD 8.9 million , approximately $6.4 million , which included: (i) a payment at closing of NZD 7.5 million , approximately $5.5 million ; (ii) a preliminary working capital adjustment payable to the sellers of NZD 0.2 million , approximately $0.1 million ; and (iii) the estimated fair value of earnout consideration of NZD 1.2 million , approximately $0.9 million , which was recorded to “Other non-current liabilities” in the Consolidated Balance Sheet at March 31, 2017 . The fair value estimate was determined using observable inputs and significant unobservable inputs, which are based on level 3 inputs as defined in Note 11. The following table summarizes the fair value of identified assets and liabilities of the Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions acquisitions at their respective acquisition dates (in thousands): Environmental Techniques Underground Solutions Fyfe Europe LMJ Concrete Solutions Cash $ — $ 3,630 $ — $ — $ — Receivables and cost and estimated earnings in excess of billings 801 6,339 — — 1,469 Inventories 1,281 12,629 — 504 857 Prepaid expenses and other current assets 93 671 — — 18 Property, plant and equipment 1,694 2,755 50 1,194 422 Identified intangible assets 2,011 33,370 513 795 1,722 Deferred income tax assets — 13,282 — — — Other assets — 90 — — Accounts payable (1,025 ) (4,653 ) — — (837 ) Accrued expenses (186 ) (5,900 ) — — (149 ) Billings in excess of cost and estimated earnings — (2,943 ) — — — Deferred income tax liabilities — (14,562 ) — — (482 ) Total identifiable net assets $ 4,669 $ 44,708 $ 563 $ 2,493 $ 3,020 Total consideration recorded $ 8,046 $ 88,370 $ 3,000 $ 3,235 $ 6,393 Less: total identifiable net assets 4,669 44,708 563 2,493 3,020 Goodwill at March 31, 2017 $ 3,377 $ 43,662 $ 2,437 $ 742 $ 3,373

Accounting Policies

Accounting Policies	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Accounting Policies	ACCOUNTING POLICIES Revenues Revenues include construction, engineering and installation revenues that are recognized using the percentage-of-completion method of accounting in the ratio of costs incurred to estimated final costs. Revenues from change orders, extra work and variations in the scope of work are recognized when it is probable that they will result in additional contract revenue and when the amount can be reliably estimated. Contract costs include all direct material and labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools and equipment costs. The Company expenses all pre-contract costs in the period these costs are incurred. Since the financial reporting of these contracts depends on estimates, which are assessed continually during the term of these contracts, recognized revenues and profit are subject to revisions as the contract progresses to completion. Revisions in profit estimates are reflected in the period in which the facts that give rise to the revision become known. If material, the effects of any changes in estimates are disclosed in the notes to the consolidated financial statements. When estimates indicate that a loss will be incurred on a contract, a provision for the expected loss is recorded in the period in which the loss becomes evident. Any revenue recognized is only to the extent costs have been recognized in the period. Additionally, the Company expenses all costs for unpriced change orders in the period in which they are incurred. Revenues from the Company’s Energy Services segment are derived mainly from multiple engineering and construction type contracts, as well as maintenance contracts, under multi-year long-term master service agreements and alliance contracts. Businesses within the Company’s Energy Services segment enter into customer contracts that contain three principal types of pricing provisions: time and materials, cost plus fixed fee and fixed price. Although the terms of these contracts vary, most are made pursuant to cost reimbursable contracts on a time and materials basis under which revenues are recorded based on costs incurred at agreed upon contractual rates. These businesses also perform services on a cost plus fixed fee basis under which revenues are recorded based upon costs incurred at agreed upon rates and a proportionate amount of the fixed fee or percentage stipulated in the contract. Foreign Currency Translation For the Company’s international subsidiaries, the local currency is generally the functional currency. Assets and liabilities of these subsidiaries are translated into U.S. dollars using rates in effect at the balance sheet date while revenues and expenses are translated into U.S. dollars using average exchange rates. The cumulative translation adjustment resulting from changes in exchange rates are included in the Consolidated Balance Sheets as a component of accumulated other comprehensive income (loss) in total stockholders’ equity. The Company’s accumulated other comprehensive loss is comprised of three main components: (i) currency translation; (ii) gains and losses associated with the Company’s defined benefit plan in the United Kingdom; and (iii) derivatives (in thousands): March 31, 2017 December 31, 2016 Currency translation adjustments $ (51,313 ) $ (54,863 ) Derivative hedging activity 1,808 1,004 Pension activity 365 359 Total accumulated other comprehensive loss $ (49,140 ) $ (53,500 ) Net foreign exchange transaction losses of $0.4 million and $1.1 million in the first quarters of 2017 and 2016 , respectively, are included in “Other expense” in the Consolidated Statements of Operations. Taxation The Company provides for estimated income taxes payable or refundable on current year income tax returns as well as the estimated future tax effects attributable to temporary differences and carryforwards, based upon enacted tax laws and tax rates, and in accordance with FASB ASC 740, Income Taxes (“FASB ASC 740”). FASB ASC 740 also requires that a valuation allowance be recorded against any deferred tax assets that are not likely to be realized in the future. Refer to Note 8 for additional information regarding taxes on income. Purchase Price Accounting The Company accounts for its acquisitions in accordance with FASB ASC 805, Business Combinations . The base cash purchase price plus the estimated fair value of any non-cash or contingent consideration given for an acquired business is allocated to the assets acquired (including identified intangible assets) and liabilities assumed based on the estimated fair values of such assets and liabilities. The excess of the total consideration over the aggregate net fair values assigned is recorded as goodwill. Contingent consideration, if any, is recognized as a liability as of the acquisition date with subsequent adjustments recorded in the consolidated statements of operations. Indirect and general expenses related to business combinations are expensed as incurred. The Company typically determines the fair value of tangible and intangible assets acquired in a business combination using independent valuations that rely on management’s estimates of inputs and assumptions that a market participant would use. Key assumptions include cash flow projections, growth rates, asset lives, and discount rates based on an analysis of weighted average cost of capital. Long-Lived Assets Property, plant and equipment and other identified intangibles (primarily customer relationships, patents and acquired technologies, trademarks, licenses and non-compete agreements) are recorded at cost, net of accumulated depreciation and impairment and, except for goodwill and certain trademarks, are depreciated or amortized on a straight-line basis over their estimated useful lives. Changes in circumstances such as technological advances, changes to the Company’s business model or changes in the Company’s capital strategy can result in the actual useful lives differing from the Company’s estimates. If the Company determines that the useful life of its property, plant and equipment or its identified intangible assets should be changed, the Company would depreciate or amortize the net book value in excess of the salvage value over its revised remaining useful life, thereby increasing or decreasing depreciation or amortization expense. Long-lived assets, including property, plant and equipment and other intangibles, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Such impairment tests are based on a comparison of undiscounted cash flows to the recorded value of the asset. The estimate of cash flow is based upon, among other things, assumptions about expected future operating performance. The Company’s estimates of undiscounted cash flow may differ from actual cash flow due to, among other things, technological changes, economic conditions, changes to its business model or changes in its operating performance. If the sum of the undiscounted cash flows (excluding interest) is less than the carrying value, the Company recognizes an impairment loss, measured as the amount by which the carrying value exceeds the fair value of the asset. Goodwill Acquisitions treated as a business combination generally result in goodwill related to, among other things, synergies, acquired workforce, growth opportunities and market potential. Under FASB ASC 350, the Company assesses recoverability of goodwill on an annual basis or when events or changes in circumstances indicate that the carrying amount of goodwill may not be recoverable. An impairment charge will be recognized to the extent that the implied fair value of a reporting unit is less than its carrying value. Factors that could potentially trigger an impairment review include (but are not limited to): • significant underperformance of a reporting unit relative to expected, historical or forecasted operating results; • significant negative industry or economic trends; • significant changes in the strategy for a segment including extended slowdowns in the reporting unit’s market; • a decrease in market capitalization below the Company’s book value; and • a significant change in regulations. Whether during the annual impairment assessment or during a trigger-based impairment review, the Company determines the fair value of its reporting units and compares such fair value to the carrying value of those reporting units to determine if there are any indications of goodwill impairment. Fair value of reporting units is determined using a combination of two valuation methods: a market approach and an income approach with each method given equal weight in determining the fair value assigned to each reporting unit. Absent an indication of fair value from a potential buyer or similar specific transaction, the Company believes the use of these two methods provides a reasonable estimate of a reporting unit’s fair value. Assumptions common to both methods are operating plans and economic outlooks, which are used to forecast future revenues, earnings and after-tax cash flows for each reporting unit. These assumptions are applied consistently for both methods. The market approach estimates fair value by first determining earnings before interest, taxes, depreciation and amortization (“EBITDA”) multiples for comparable publicly-traded companies with similar characteristics of the reporting unit. The EBITDA multiples for comparable companies are based upon current enterprise value. The enterprise value is based upon current market capitalization and includes a control premium. The Company believes this approach is appropriate because it provides a fair value estimate using multiples from entities with operations and economic characteristics comparable to its reporting units. The income approach is based on forecasted future (debt-free) cash flows that are discounted to present value using factors that consider timing and risk of future cash flows. The Company believes this approach is appropriate because it provides a fair value estimate based upon the reporting unit’s expected long-term operating cash flow performance. Discounted cash flow projections are based on financial forecasts developed from operating plans and economic outlooks, growth rates, estimates of future expected changes in operating margins, terminal value growth rates, future capital expenditures and changes in working capital requirements. Estimates of discounted cash flows may differ from actual cash flows due to, among other things, changes in economic conditions, changes to business models, changes in the Company’s weighted average cost of capital, or changes in operating performance. The discount rate applied to the estimated future cash flows is one of the most significant assumptions utilized under the income approach. The Company determines the appropriate discount rate for each of its reporting units based on the weighted average cost of capital (“WACC”) for each individual reporting unit. The WACC takes into account both the pre-tax cost of debt and cost of equity (including the risk-free rate on twenty year U.S. Treasury bonds), and certain other company-specific and market-based factors. As each reporting unit has a different risk profile based on the nature of its operations, the WACC for each reporting unit is adjusted, as appropriate, to account for company-specific risks. Accordingly, the WACC for each reporting unit may differ. Investments in Variable Interest Entities The Company evaluates all transactions and relationships with variable interest entities (“VIE”) to determine whether the Company is the primary beneficiary of the entities in accordance with FASB ASC 810, Consolidation. The Company’s overall methodology for evaluating transactions and relationships under the VIE requirements includes the following two steps: • determine whether the entity meets the criteria to qualify as a VIE; and • determine whether the Company is the primary beneficiary of the VIE. In performing the first step, the significant factors and judgments that the Company considers in making the determination as to whether an entity is a VIE include: • the design of the entity, including the nature of its risks and the purpose for which the entity was created, to determine the variability that the entity was designed to create and distribute to its interest holders; • the nature of the Company’s involvement with the entity; • whether control of the entity may be achieved through arrangements that do not involve voting equity; • whether there is sufficient equity investment at risk to finance the activities of the entity; and • whether parties other than the equity holders have the obligation to absorb expected losses or the right to receive residual returns. If the Company identifies a VIE based on the above considerations, it then performs the second step and evaluates whether it is the primary beneficiary of the VIE by considering the following significant factors and judgments: • whether the entity has the power to direct the activities of a variable interest entity that most significantly impact the entity’s economic performance; and • whether the entity has the obligation to absorb losses of the entity that could potentially be significant to the variable interest entity or the right to receive benefits from the entity that could potentially be significant to the variable interest entity. Based on its evaluation of the above factors and judgments, as of March 31, 2017 , the Company consolidated any VIEs in which it was the primary beneficiary. Financial data for consolidated variable interest entities are summarized in the following table (in thousands): Balance sheet data (1) March 31, December 31, Current assets $ 76,863 $ 51,354 Non-current assets 24,757 25,607 Current liabilities 48,065 29,324 Non-current liabilities 31,496 28,849 Quarters Ended March 31, Income statement data (1) 2017 2016 Revenue $ 34,061 $ 14,736 Gross profit 5,530 639 Net income (loss) attributable to Aegion Corporation 1,272 (2,940 ) __________________________ (1) During the first quarter of 2017, increased activity was primarily driven from our joint venture in Louisiana, which continued its work on a large deepwater pipe coating and insulation project. Newly Issued Accounting Pronouncements In January 2017, the FASB issued guidance that simplifies the subsequent measurement of goodwill by removing the second step of the two-step impairment test. The standard requires an entity to perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value. The standard is effective for the Company’s fiscal year beginning January 1, 2020, but early adoption is permitted for interim or annual goodwill impairment tests performed after January 1, 2017. The Company’s adoption of this standard, effective January 1, 2017, did not have a material impact on its consolidated financial statements. In November 2016, the FASB issued guidance requiring that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. As a result, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This new guidance is effective for the Company’s fiscal year beginning January 1, 2018, including interim periods within that fiscal year. Early adoption is permitted, and the new guidance is to be applied retrospectively. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements, other than the classification of restricted cash on the consolidated statement of cash flows. In August 2016, the FASB issued guidance to address diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The standard is effective for the Company’s fiscal year beginning January 1, 2018, including interim periods within that fiscal year. Early adoption is permitted, and the new guidance is to be applied retrospectively. The Company is currently evaluating the effect the guidance will have on its statement of cash flows. In March 2016, the FASB issued guidance that simplifies several aspects of the accounting for share-based payment awards to employees, including the accounting for income taxes, classification of awards as either equity or liabilities and classification in the statement of cash flows. The standard is effective for the Company’s fiscal year beginning January 1, 2017, including interim periods within that fiscal year. The Company’s adoption of this standard, effective January 1, 2017, did not have a material impact on its consolidated financial statements. In February 2016, the FASB issued guidance that requires lessees to present right-of-use assets and lease liabilities on the balance sheet for all leases with lease terms longer than twelve months. The standard is effective for the Company’s fiscal year beginning January 1, 2019, including interim periods within that fiscal year. Early adoption is permitted. Entities are required to use the modified retrospective approach for all existing leases as of the effective date; however, the standard provides for certain practical expedients. The Company is currently evaluating the effect the guidance will have on its financial condition and results of operations, including an analysis of its current lease contracts as well as other existing arrangements to determine if they qualify for lease accounting under the new standard. In November 2015, the FASB issued guidance that requires all deferred tax assets and liabilities, along with any related valuation allowance, to be presented as non-current within the Consolidated Balance Sheet. It is effective for the Company’s fiscal year beginning January 1, 2017, including interim periods within that fiscal year . The Company’s adoption of this standard, effective January 1, 2017, did not have a material impact on its consolidated financial statements. Prior period balances were not retrospectively adjusted. In May 2014, the FASB issued guidance that supersedes revenue recognition requirements regarding contracts with customers to transfer goods or services or for the transfer of non-financial assets. Under the new guidance, entities are required to recognize revenue in order to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides a five-step analysis to be performed on transactions to determine when and how revenue is recognized. This new guidance is effective for the Company’s fiscal year beginning January 1, 2018. Early adoption is permitted, although the Company does not intend to do so. Entities are allowed to transition to the new standard either on a full retrospective basis or under the cumulative effect method whereby the entity applies the new revenue standard as of the date of initial application without restatement of comparative period amounts. The Company is still evaluating the impact of the new revenue standard including which transition approach will be applied. The Company has identified a project manager as well as a cross functional project team responsible for assessing the impact on its contracts. The implementation team is finalizing the project’s assessment phase, which included the identification of the Company’s key revenue streams (fixed fee, time and materials, product sales and royalty fees from license arrangements) and the comparison of historical accounting policies and practices to the requirements of the new revenue standard. The implementation team has also made substantial progress in the contract review phase of the project, which included identifying the population of contracts and a deep analysis of the new standard on individual contract terms, and initiated the process of identifying potential changes to business processes, systems and controls to support recognition and disclosure under the new standard. Based on its preliminary assessment, the Company does not anticipate a significant change to the timing of revenue or cost recognition upon adoption of the new revenue standard. Revenues earned from construction, engineering and installation services that are recognized using the percentage-of-completion method of accounting under historical reporting practices are expected to remain largely unchanged. Other less significant revenue streams such as time and materials projects, product sales and royalty fees are still being evaluated, but significant changes are not expected at this time. Approved change orders and revised cost estimates could result in cumulative catch up adjustments to revenue under certain circumstances. We also expect to implement changes to our financial reporting process in order to comply with the disclosure requirements of the new revenue standard.

Restructuring

Restructuring	3 Months Ended
	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Restructuring	RESTRUCTURING On January 4, 2016, the Company’s board of directors approved the 2016 Restructuring to reduce its exposure to the upstream oil markets and to reduce consolidated expenses. During 2016, the Company completed its restructuring, which included repositioning Energy Services’ upstream operations in California, reducing Corrosion Protection’s upstream exposure by divesting its interest in a Canadian pipe coating joint venture, right-sizing Corrosion Protection to compete more effectively and reducing corporate and other operating costs. Cost savings were achieved primarily through office closures and reducing headcount by approximately 964 employees, or 15.5% of the Company’s total workforce as of December 31, 2015. Total pre-tax 2016 Restructuring charges recorded since inception were $16.1 million ( $10.3 million after tax) and consisted of employee severance, retention, extension of benefits, employment assistance programs and other restructuring costs associated with the restructuring efforts described above. The vast majority of 2016 Restructuring costs were cash charges. There were no expenses incurred in the first quarter of 2017 related to the 2016 Restructuring. During the first quarter of 2016, the Company recorded pre-tax expense related to the 2016 Restructuring as follows (in thousands): Quarter Ended March 31, 2016 Infrastructure Solutions Corrosion Protection Energy Services Total Severance and benefit related costs $ 1,912 $ 2,420 $ 1,309 $ 5,641 Lease termination costs — — 969 969 Relocation and other moving costs — — 120 120 Other restructuring costs (1) 241 317 2,454 3,012 Total pre-tax restructuring charges (reversals) (2) $ 2,153 $ 2,737 $ 4,852 $ 9,742 __________________________ (1) Includes charges primarily related to downsizing the Company’s upstream operations in California, inclusive of wind-down costs, professional fees, fixed asset disposals and certain other restructuring charges. (2) Includes $1.0 million of corporate-related restructuring charges that have been allocated to the reportable segments. 2016 Restructuring costs related to severance, other termination benefit costs and early lease termination costs for the first quarters of 2017 and 2016 were zero and $6.7 million , respectively, and reported on a separate line in the Consolidated Statements of Operations in accordance with FASB ASC 420, Exit or Disposal Cost Obligations . The following tables summarize all charges related to the 2016 Restructuring recognized in the first quarter of 2016 as presented in their affected line in the Consolidated Statements of Operations (in thousands): Quarter Ended March 31, 2016 Cost of revenues (1) $ 49 Operating expenses (2) 2,963 Restructuring charges (3) 6,730 Total pre-tax restructuring charges (4) $ 9,742 __________________________ (1) All charges relate to Infrastructure Solutions. (2) Includes: (i) charges of $0.2 million related to Infrastructure Solutions; (ii) charges of $0.3 million related to Corrosion Protection; and (iii) charges of $2.5 million related to Energy Services. (3) Includes: (i) charges of $1.9 million related to Infrastructure Solutions; (ii) charges of $2.4 million related to Corrosion Protection; and (iii) charges of $2.4 million related to Energy Services. (4) All charges incurred during the quarter will be settled in cash, either during the current quarter or future periods. The following tables summarize the 2016 Restructuring activity during the first quarters of 2017 and 2016 (in thousands): Reserves at December 31, 2016 2017 Utilized in 2017 Reserves at Cash (1) Non-Cash Severance and benefit related costs $ 645 $ — $ 228 $ — $ 417 Lease termination costs 125 — 30 — 95 Relocation and other moving costs 10 — 10 — — Other restructuring costs 120 — 32 — 88 Total pre-tax restructuring charges $ 900 $ — $ 300 $ — $ 600 __________________________ (1) Refers to cash utilized to settle charges, either those reserved at December 31, 2016 or charged to income during the first quarter of 2017. 2016 Utilized in 2016 Reserves at Cash (1) Non-Cash Severance and benefit related costs $ 5,641 $ 3,062 $ — $ 2,579 Lease termination costs 969 583 — 386 Relocation and other moving costs 120 120 — — Other restructuring costs 3,012 2,906 — 106 Total pre-tax restructuring charges $ 9,742 $ 6,671 $ — $ 3,071 __________________________ (1) Refers to cash utilized to settle charges during the first quarter of 2016.

Share Information

Share Information	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Share Information	SHARE INFORMATION Earnings per share have been calculated using the following share information: Quarters Ended March 31, 2017 2016 Weighted average number of common shares used for basic EPS 33,819,331 35,488,580 Effect of dilutive stock options and restricted and deferred stock unit awards 685,257 — Weighted average number of common shares and dilutive potential common stock used in dilutive EPS 34,504,588 35,488,580 The Company excluded 391,885 stock options and restricted and deferred stock units in the first quarter of 2016 from the diluted earnings per share calculation for the Company’s common stock because of the reported net loss for the period. The Company excluded 77,807 and 164,014 stock options for the first quarters of 2017 and 2016 , respectively, from the diluted earnings per share calculations for the Company’s common stock because they were anti-dilutive as their exercise prices were greater than the average market price of common shares for each period.

Goodwill and Identified Intangi

Goodwill and Identified Intangible Assets	3 Months Ended
	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Identified Intangible Assets	GOODWILL AND IDENTIFIED INTANGIBLE ASSETS Goodwill The following table presents a reconciliation of the beginning and ending balances of the Company’s goodwill at January 1, 2017 and March 31, 2017 (in thousands): Infrastructure Corrosion Energy Total Balance, January 1, 2017 Goodwill, gross $ 239,494 $ 73,875 $ 80,246 $ 393,615 Accumulated impairment losses (16,069 ) (45,400 ) (33,527 ) (94,996 ) Goodwill, net 223,425 28,475 46,719 298,619 Acquisitions (1) 3,377 — — 3,377 Foreign currency translation 688 65 — 753 Balance, March 31, 2017 Goodwill, gross 243,559 73,940 80,246 397,745 Accumulated impairment losses (16,069 ) (45,400 ) (33,527 ) (94,996 ) Goodwill, net $ 227,490 $ 28,540 $ 46,719 $ 302,749 __________________________ (1) During the first quarter of 2017 , the Company recorded goodwill of $3.4 million related to the acquisition of Environmental Techniques (see Note 1). Identified Intangible Assets Identified intangible assets consisted of the following (in thousands): March 31, 2017 December 31, 2016 Weighted Average Useful Lives (Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount License agreements 9.3 $ 4,426 $ (3,488 ) $ 938 $ 4,418 $ (3,438 ) $ 980 Leases 10.6 2,065 (948 ) 1,117 2,065 (912 ) 1,153 Trademarks (1) 13.7 24,664 (8,285 ) 16,379 24,185 (7,868 ) 16,317 Non-competes 1.6 1,309 (1,082 ) 227 1,308 (1,054 ) 254 Customer relationships (1) 11.2 189,416 (56,898 ) 132,518 187,554 (53,830 ) 133,724 Patents and acquired technology 10.0 66,526 (24,603 ) 41,923 66,222 (23,739 ) 42,483 $ 288,406 $ (95,304 ) $ 193,102 $ 285,752 $ (90,841 ) $ 194,911 __________________________ (1) During the first quarter of 2017 , the Company recorded trademarks of $0.4 million and customer relationships of $1.6 million related to the acquisition of Environmental Techniques (see Note 1). Amortization expense was $4.3 million and $3.7 million for the first quarters of 2017 and 2016 , respectively. Estimated amortization expense by year is as follows (in thousands): 2017 $ 17,320 2018 17,305 2019 17,049 2020 16,925 2021 16,878

Long-Term Debt and Credit Facil

Long-Term Debt and Credit Facility	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Long-Term Debt and Credit Facility	LONG-TERM DEBT AND CREDIT FACILITY Financing Arrangements Long-term debt, term note and notes payable consisted of the following (in thousands): March 31, December 31, Term note, due October 30, 2020, annualized rates of 3.27% and 3.08%, respectively $ 323,750 $ 328,125 Line of credit, 3.18% and 2.96%, respectively 46,000 36,000 Other notes with interest rates from 3.3% to 6.5% 9,881 9,901 Subtotal 379,631 374,026 Less – Current maturities of long-term debt 22,020 19,835 Less – Unamortized loan costs 3,184 3,406 Total $ 354,427 $ 350,785 In October 2015, the Company entered into an amended and restated $650.0 million senior secured credit facility (the “Credit Facility”) with a syndicate of banks. Bank of America, N.A. served as the sole administrative agent and JP Morgan Chase Bank, N.A. and U.S. Bank National Association acted as co-syndication agents. Merrill Lynch Pierce Fenner & Smith Incorporated, JPMorgan Securities LLC and U.S. Bank National Association acted as joint lead arrangers and joint book managers in the syndication of the Credit Facility. The Credit Facility consists of a $300.0 million five -year revolving line of credit and a $350.0 million five -year term loan facility. The Company drew the entire term loan from the Credit Facility to (i) retire $344.7 million in indebtedness outstanding under the Company’s prior credit facility; (ii) fund expenses associated with the Credit Facility; and (iii) fund general corporate purposes. Generally, interest is charged on the principal amounts outstanding under the Credit Facility at the British Bankers Association LIBOR rate plus an applicable rate ranging from 1.25% to 2.25% depending on the Company’s consolidated leverage ratio. The Company can also opt for an interest rate equal to a base rate (as defined in the credit documents) plus an applicable rate, which also is based on the Company’s consolidated leverage ratio. The applicable LIBOR borrowing rate (LIBOR plus Company’s applicable rate) as of March 31, 2017 was approximately 3.26% . The Company’s indebtedness at March 31, 2017 consisted of $323.8 million outstanding from the $350.0 million term loan under the Credit Facility and $46.0 million on the line of credit under the Credit Facility. During the first quarter of 2017, the Company borrowed $10.0 million on the line of credit for domestic working capital needs. Additionally, the Company designated $9.6 million of debt held by its joint venture partners (representing funds loaned by its joint venture partners) as third-party debt in the consolidated financial statements and held $0.3 million of third-party notes and bank debt at March 31, 2017 . As of March 31, 2017 , the Company had $32.7 million in letters of credit issued and outstanding under the Credit Facility. Of such amount, $15.1 million was collateral for the benefit of certain of our insurance carriers and $17.5 million was for letters of credit or bank guarantees of performance or payment obligations of foreign subsidiaries. The Company’s indebtedness at December 31, 2016 consisted of $328.1 million outstanding from the term loan under the Credit Facility and $36.0 million on the line of credit under the Credit Facility. Additionally, the Company designated $9.6 million of debt held by its joint ventures (representing funds loaned by its joint venture partners) as third-party debt in the consolidated financial statements and held $0.3 million of third-party notes and bank debt at December 31, 2016 . At March 31, 2017 and December 31, 2016, the estimated fair value of the Company’s long-term debt was approximately $374.0 million and $366.0 million , respectively. Fair value was estimated using market rates for debt of similar risk and maturity and a discounted cash flow model, which are based on Level 3 inputs as defined in Note 11. In October 2015, the Company entered into an interest rate swap agreement for a notional amount of $262.5 million , which is set to expire in October 2020. The notional amount of this swap mirrors the amortization of a $262.5 million portion of the Company’s $350.0 million term loan drawn from the Credit Facility. The swap requires the Company to make a monthly fixed rate payment of 1.46% calculated on the amortizing $262.5 million notional amount, and provides for the Company to receive a payment based upon a variable monthly LIBOR interest rate calculated on the same amortizing $262.5 million notional amount. The receipt of the monthly LIBOR-based payment offsets a variable monthly LIBOR-based interest cost on a corresponding $262.5 million portion of the Company’s term loan from the Credit Facility. This interest rate swap is used to partially hedge the interest rate risk associated with the volatility of monthly LIBOR rate movement and is accounted for as a cash flow hedge. See Note 11. The Credit Facility is subject to certain financial covenants, including a consolidated financial leverage ratio and consolidated fixed charge coverage ratio. Subject to the specifically defined terms and methods of calculation as set forth in the Credit Facility’s credit agreement, the financial covenant requirements, as of each quarterly reporting period end, are defined as follows: • Consolidated financial leverage ratio compares consolidated funded indebtedness to Credit Facility defined income. The initial maximum amount was not to initially exceed 3.75 to 1.00. In connection with the acquisition of Underground Solutions, the Company executed a one-time election, in accordance with the Credit Agreement, to increase the consolidated financial leverage ratio to 4.00 to 1.00 for a period of one year , which expired during the first quarter of 2017. For the quarter ended March 31, 2017, the maximum amount was not to exceed 3.75 to 1.00. The ratio will decrease to not more than 3.50 to 1.00 beginning with the quarter ending June 30, 2017. At March 31, 2017 , the Company’s consolidated financial leverage ratio was 3.10 to 1.00 and, using the Credit Facility defined income, the Company had the capacity to borrow up to $80.9 million of additional debt. • Consolidated fixed charge coverage ratio compares Credit Facility defined income to Credit Facility defined fixed charges with a minimum permitted ratio of not less than 1.25 to 1.00. At March 31, 2017 , the Company’s fixed charge ratio was 1.72 to 1.00. At March 31, 2017 , the Company was in compliance with all of its debt and financial covenants as required under the Credit Facility.

Stockholders' Equity and Equity

Stockholders' Equity and Equity Compensation	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Stockholders' Equity and Equity Compensation	STOCKHOLDERS’ EQUITY AND EQUITY COMPENSATION Share Repurchase Plan Under the terms of its Credit Facility, the Company is authorized to purchase a limited number of shares of its common stock on an annual basis, subject to Board of Director authorization. In October 2016, our Board of Directors authorized the open market repurchase of up to $40.0 million of our common stock to be made during 2017. The Company began repurchasing shares under this program in January 2017. Once repurchased, the Company promptly retires such shares. The Company is also authorized to repurchase up to $10.0 million of the Company’s common stock in each calendar year in connection with the Company’s equity compensation programs for employees. The participants in the Company’s equity plans may surrender shares of common stock in satisfaction of tax obligations arising from the vesting of restricted stock, restricted stock unit awards and performance unit awards under such plans and in connection with the exercise of stock option awards. The deemed price paid is the closing price of the Company’s common stock on the Nasdaq Global Select Market on the date that the restricted stock, restricted stock unit or performance unit vests or the shares of the Company’s common stock are surrendered in exchange for stock option exercises. The option holder may elect a “net, net” exercise in connection with the exercise of employee stock options such that the option holder receives a number of shares equal to (1) the built-in gain in the option shares divided by the market price of the Company’s common stock on the date of exercise, less (2) a number of shares equal to the taxes due upon the exercise of the option divided by the market price of the Company’s common stock on the date of exercise. The shares of Company common stock surrendered to the Company for taxes due on the exercise of the option are deemed repurchased by the Company. During the first quarter of 2017, the Company acquired 366,914 shares of the Company’s common stock for $8.4 million ( $22.82 average price per share) through the open market repurchase programs discussed above and 95,403 shares of the Company’s common stock for $2.1 million ( $22.37 average price per share) in connection with the satisfaction of tax obligations in connection with the vesting of restricted stock, restricted stock units and performance units. Once repurchased, the Company immediately retired all such shares. During the first quarter of 2016, the Company acquired 858,582 shares of the Company’s common stock for $15.3 million ( $17.83 average price per share) through the open market repurchase program discussed above and 52,074 shares of the Company’s common stock for $1.0 million ( $19.61 average price per share) in connection with the vesting of restricted stock, restricted stock units and the exercise of stock options. Once repurchased, the Company immediately retired all such shares. Equity-Based Compensation Plans In April 2016, the Company’s stockholders approved the 2016 Employee Equity Incentive Plan (the “2016 Employee Plan”), which replaced the 2013 Employee Equity Incentive Plan. The 2016 Employee Plan provides for equity-based compensation awards, including restricted shares of common stock, performance awards, stock options, stock units and stock appreciation rights. The 2016 Employee Plan is administered by the Compensation Committee of the Board of Directors, which determines eligibility, timing, pricing, amount and other terms or conditions of awards. In April 2017, the Company’s stockholders approved the First Amendment to the 2016 Employee Equity Incentive Plan, which increased by 1,000,000 the number of shares of the Company’s common stock reserved and available for issuance in connection with awards issued under the 2016 Employee Plan. As of March 31, 2017 , 207,474 shares of common stock were available for issuance under the 2016 Employee Plan. In April 2016, the Company’s stockholders also approved the 2016 Non-Employee Director Equity Incentive Plan (the “2016 Director Plan”), which replaced the 2011 Non-Employee Director Equity Incentive Plan. The 2016 Director Plan provides for equity-based compensation awards, including non-qualified stock options and stock units. The Board of Directors administers the 2016 Director Plan and has the authority to establish, amend and rescind any rules and regulations related to the 2016 Director Plan. As of March 31, 2017 , 161,326 shares of common stock were available for issuance under the 2016 Director Plan. Stock Awards Stock awards, which include shares of restricted stock, restricted stock units and restricted performance units, are awarded from time to time to executive officers and certain key employees of the Company. Stock award compensation is recorded based on the award date fair value and charged to expense ratably through the requisite service period. The forfeiture of unvested restricted stock, restricted stock units and restricted performance units causes the reversal of all previous expense to be recorded as a reduction of current period expense. A summary of the stock award activity is as follows: Quarter Ended Stock Awards Weighted Average Award Date Fair Value Outstanding at January 1, 2017 1,501,021 $ 18.78 Restricted shares awarded — — Restricted stock units awarded 222,895 23.09 Performance stock units awarded 213,436 23.04 Restricted shares distributed (158,306 ) 22.71 Restricted stock units distributed (62,164 ) 22.29 Performance stock units distributed (49,672 ) 21.95 Restricted shares forfeited (1,084 ) 23.01 Restricted stock units forfeited (5,734 ) 17.76 Performance stock units forfeited (29,978 ) 18.99 Outstanding at March 31, 2017 1,630,414 $ 19.31 Expense associated with stock awards was $3.0 million and $2.3 million for the first quarters of 2017 and 2016 , respectively. Unrecognized pre-tax expense of $21.4 million related to stock awards is expected to be recognized over the weighted average remaining service period of 2.15 years for awards outstanding at March 31, 2017 . Deferred Stock Unit Awards Deferred stock units are generally awarded to directors of the Company and represent the Company’s obligation to transfer one share of the Company’s common stock to the grantee at a future date and are generally fully vested on the date of grant. The expense related to the issuance of deferred stock units is recorded as of the date of the award. A summary of deferred stock unit activity is as follows: Quarter Ended Deferred Stock Units Weighted Average Award Date Fair Value Outstanding at January 1, 2017 253,445 $ 19.93 Awarded 3,026 24.06 Distributed — — Outstanding at March 31, 2017 256,471 $ 19.98 Expense associated with awards of deferred stock units was $0.1 million and less than $0.1 million for the first quarters of 2017 and 2016 , respectively. Stock Options Stock options on the Company’s common stock are awarded from time to time to executive officers and certain key employees of the Company. Stock options granted generally have a term of seven to ten years and an exercise price equal to the market value of the underlying common stock on the date of grant. A summary of stock option activity is as follows: Quarter Ended Shares Weighted Average Exercise Price Outstanding at January 1, 2017 170,253 $ 21.99 Granted — — Exercised — — Canceled/Expired — — Outstanding at March 31, 2017 170,253 $ 21.99 Exercisable at March 31, 2017 170,253 $ 21.99 Expense associated with stock option grants was zero and less than $0.1 million for the first quarters of 2017 and 2016 , respectively. There was no unrecognized pre-tax expense related to stock option grants at March 31, 2017 . Financial data for stock option exercises are summarized as follows (in thousands): Quarters Ended 2017 2016 Amount collected from stock option exercises $ — $ 306 Total intrinsic value of stock option exercises — 352 Tax shortfall of stock option exercises recorded in additional paid-in-capital — 18 Aggregate intrinsic value of outstanding stock options 444 320 Aggregate intrinsic value of exercisable stock options 444 320 The intrinsic value calculations are based on the Company’s closing stock price of $22.91 and $21.09 on March 31, 2017 and 2016 , respectively. The Company uses a binomial option-pricing model for valuation purposes to reflect the features of stock options granted. Volatility, expected term and dividend yield assumptions are based on the Company’s historical experience. The risk-free rate is based on a U.S. treasury note with a maturity similar to the option grant’s expected term. There were no stock options awarded during 2017 or 2016 .

Taxes on Income

Taxes on Income	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Taxes on Income	TAXES ON INCOME The Company’s effective tax rate in the quarter ended March 31, 2017 was 20.5% . The effective rate was favorably impacted by the reversal of previously recorded valuation allowances due to changes in the realization of future tax benefits, primarily in the United States. For the quarter ended March 31, 2016 , the Company’s effective tax rate was a benefit of 54.6% on a pre-tax loss and was favorably impacted by a $1.9 million benefit related to the reversal of a previously recorded valuation allowance in the U.S. due to changes in the realization of future tax benefits.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Litigation In December 2016, the Company settled two lawsuits related to the December 2012 departure of several key leaders in sales and operations for the Tyfo ® Fibrwrap ® technology, which is part of the Infrastructure Solutions platform. Under the settlement, Aegion will receive $6.6 million over the years 2016 through 2020. The initial $3.6 million cash payment was received in December 2016 and the remainder is to be paid in $750,000 installments over the next four years. At March 31, 2017 , $750,000 was included in “Prepaid expenses and other current assets” and $2.25 million was included in “Other assets” in the Consolidated Balance Sheet. The Company is involved in certain litigation incidental to the conduct of its business and affairs. Management, after consultation with legal counsel, does not believe that the outcome of any such litigation, individually or in the aggregate, will have a material adverse effect on the Company’s consolidated financial condition, results of operations or cash flows. Contingencies In connection with the Brinderson acquisition, certain pre-acquisition matters were identified in 2014 whereby a loss is both probable and reasonably estimable. The Company establishes liabilities in accordance with FASB ASC Subtopic No. 450-20, Contingencies - Loss Contingencies , and accordingly, recorded an accrual related to various legal, tax, employee benefit and employment matters. At December 31, 2016, the accrual relating to these matters was $6.0 million . During the first quarter of 2017, the Company reassessed its reserve, as certain payroll tax statutory limitation periods lapsed, and lowered its accrual for such matters by $0.7 million . The accrual adjustments resulted in an offset to “Operating expense” in the Consolidated Statement of Operations. As of March 31, 2017 , the remaining accrual relating to these matters was $5.3 million . The Company believes it has asserted meritorious defenses to these remaining matters. Purchase Commitments The Company had no material purchase commitments at March 31, 2017 . Guarantees The Company has many contracts that require the Company to indemnify the other party against loss from claims, including claims of patent or trademark infringement or other third party claims for injuries, damages or losses. The Company has agreed to indemnify its surety against losses from third-party claims of subcontractors. The Company has not previously experienced material losses under these provisions and, while there can be no assurances, currently does not anticipate any future material adverse impact on its consolidated financial position, results of operations or cash flows. The Company regularly reviews its exposure under all its engagements, including performance guarantees by contractual joint ventures and indemnification of its surety. As a result of the most recent review, the Company has determined that the risk of material loss is remote under these arrangements and has not recorded a liability for these risks at March 31, 2017 on its consolidated balance sheet.

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Segment Reporting	SEGMENT REPORTING The Company has three operating segments, which are also its reportable segments: Infrastructure Solutions; Corrosion Protection; and Energy Services. The Company’s operating segments correspond to its management organizational structure. Each operating segment has a president who reports to the Company’s chief executive officer, who is also the chief operating decision manager (“CODM”). The operating results and financial information reported by each of the segments are evaluated separately, regularly reviewed and used by the CODM to evaluate segment performance, allocate resources and determine management incentive compensation. The following disaggregated financial results have been prepared using a management approach that is consistent with the basis and manner with which management internally disaggregates financial information for the purpose of making internal operating decisions. The Company evaluates performance based on stand-alone operating income (loss), which includes acquisition-related expenses, restructuring charges and an allocation of corporate-related expenses. Financial information by segment was as follows (in thousands): Quarters Ended 2017 (1) 2016 (2) Revenues: Infrastructure Solutions $ 128,868 $ 125,762 Corrosion Protection 123,390 92,446 Energy Services 72,917 75,700 Total revenues $ 325,175 $ 293,908 Gross profit: Infrastructure Solutions $ 31,251 $ 29,744 Corrosion Protection 27,963 17,199 Energy Services 8,198 7,471 Total gross profit $ 67,412 $ 54,414 Operating income (loss): Infrastructure Solutions (3) $ 5,610 $ 5,808 Corrosion Protection (4) 7,212 (5,670 ) Energy Services (5) 1,311 (4,277 ) Total operating income (loss) 14,133 (4,139 ) Other income (expense): Interest expense (4,047 ) (3,615 ) Interest income 49 32 Other (387 ) (973 ) Total other expense (4,385 ) (4,556 ) Income (loss) before taxes on income $ 9,748 $ (8,695 ) _______________________ (1) Results include: (i) $0.1 million of 2014 Restructuring expense reversals; and (ii) $0.5 million of costs incurred related to the acquisitions of Environmental Techniques and other acquisition targets. (2) Results include: (i) $9.7 million of 2016 Restructuring charges (see Note 3); (ii) $0.2 million of 2014 Restructuring expense reversals; (iii) $1.0 million of costs incurred related to the acquisition of Underground Solutions and other acquisition targets; and (iv) inventory step up expense of $1.2 million recognized as part of the accounting for business combinations (see Note 1). (3) Operating income in the first quarter of 2017 includes: (i) $0.1 million of 2014 Restructuring expense reversals; and (ii) $0.5 million of costs incurred related to the acquisition of Environmental Techniques and other acquisition targets. Operating income in the first quarter of 2016 includes: (i) $2.2 million of 2016 Restructuring charges (see Note 3); (ii) $0.2 million of 2014 Restructuring expense reversals; (iii) $1.0 million of costs incurred related to the acquisitions of Underground Solutions and other acquisition targets; and (iv) inventory step up expense of $1.2 million recognized as part of the accounting for business combinations (see Note 1). (4) Operating loss in the first quarter of 2016 includes $2.7 million of 2016 Restructuring charges (see Note 3). (5) Operating loss in the first quarter of 2016 includes $4.9 million of 2016 Restructuring charges (see Note 3). The following table summarizes revenues, gross profit and operating income by geographic region (in thousands): Quarters Ended 2017 2016 Revenues (1) : United States $ 257,724 $ 223,569 Canada 26,827 27,619 Europe 16,145 13,821 Other foreign 24,479 28,899 Total revenues $ 325,175 $ 293,908 Gross profit: United States $ 56,032 $ 39,862 Canada 4,514 5,414 Europe 3,159 2,789 Other foreign 3,707 6,349 Total gross profit $ 67,412 $ 54,414 Operating income (loss): United States $ 12,517 $ (7,552 ) Canada 1,460 1,569 Europe 408 159 Other foreign (252 ) 1,685 Total operating income (loss) $ 14,133 $ (4,139 ) __________________________ (1) Revenues are attributed to the country of origin for the Company’s legal entities. For a significant majority of its legal entities, the country of origin relates to the country or geographic area that it services.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS As a matter of policy, the Company uses derivatives for risk management purposes, and does not use derivatives for speculative purposes. From time to time, the Company may enter into foreign currency forward contracts to hedge foreign currency cash flow transactions. For cash flow hedges, a gain or loss is recorded in the Consolidated Statements of Operations upon settlement of the hedge. All of the Company’s hedges that are designated as hedges for accounting purposes were highly effective; therefore, no notable amounts of hedge ineffectiveness were recorded in the Company’s Consolidated Statements of Operations for the outstanding hedged balance. During the first quarters of 2017 and 2016 , the Company recorded less than $0.1 million as a gain on the consolidated statements of operations in the other income (expense) line item upon settlement of cash flow hedges. At March 31, 2017 , the Company’s cash flow hedges were in a net deferred loss position of $0.1 million due to unfavorable movements in short-term interest rates relative to the hedged position. The loss was recorded in accrued expenses and other comprehensive income on the Consolidated Balance Sheets and on the foreign currency translation adjustment and derivative transactions line of the Consolidated Statements of Equity. The Company presents derivative instruments in the consolidated financial statements on a gross basis. The gross and net difference of derivative instruments are considered to be immaterial to the financial position presented in the financial statements. The Company engages in regular inter-company trade activities and receives royalty payments from its wholly-owned Canadian entities, paid in Canadian dollars, rather than the Company’s functional currency, U.S. dollars. The Company utilizes foreign currency forward exchange contracts to mitigate the currency risk associated with the anticipated future payments from its Canadian entities. In October 2015, the Company entered into an interest rate swap agreement for a notional amount of $262.5 million , which is set to expire in October 2020. The notional amount of this swap mirrored the amortization of a $262.5 million portion of the Company’s $350.0 million term loan drawn from the Credit Facility. The swap requires the Company to make a monthly fixed rate payment of 1.46% calculated on the amortizing $262.5 million notional amount and provides for the Company to receive a payment based upon a variable monthly LIBOR interest rate calculated by amortizing the $262.5 million same notional amount. The receipt of the monthly LIBOR-based payment offsets a variable monthly LIBOR-based interest cost on a corresponding $262.5 million portion of the Company’s term loan from the Credit Facility. This interest rate swap is used to partially hedge the interest rate risk associated with the volatility of monthly LIBOR rate movement and is accounted for as a cash flow hedge. The following table provides a summary of the fair value amounts of our derivative instruments, all of which are Level 2 inputs as defined below (in thousands): Designation of Derivatives Balance Sheet Location March 31, December 31, Derivatives Designated as Hedging Instruments: Interest Rate Swaps Other non-current assets $ 1,863 $ 1,061 Total Assets $ 1,863 $ 1,061 Forward Currency Contracts Accrued expenses $ 55 $ 57 Total Liabilities $ 55 $ 57 Derivatives Not Designated as Hedging Instruments: Forward Currency Contracts Prepaid expenses and other current assets $ — $ 26 Total Assets $ — $ 26 Forward Currency Contracts Accrued expenses $ 41 $ — Total Liabilities $ 41 $ — Total Derivative Assets $ 1,863 $ 1,087 Total Derivative Liabilities 96 57 Total Net Derivative Asset (Liability) $ 1,767 $ 1,030 FASB ASC 820, Fair Value Measurements (“FASB ASC 820”), defines fair value, establishes a framework for measuring fair value and expands disclosure requirements about fair value measurements for interim and annual reporting periods. The guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1 – defined as quoted prices in active markets for identical instruments; Level 2 – defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3 – defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. In accordance with FASB ASC 820, the Company determined that the instruments summarized below are derived from significant observable inputs, referred to as Level 2 inputs. The following tables represent assets and liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands): Total Fair Value at Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Forward Currency Contracts $ — $ — $ — $ — Interest Rate Swap 1,863 — 1,863 — Total $ 1,863 $ — $ 1,863 $ — Liabilities: Forward Currency Contracts $ 96 $ — $ 96 $ — Interest Rate Swap — — — — Total $ 96 $ — $ 96 $ — Total Fair Value at Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Forward Currency Contracts $ 26 $ — $ 26 $ — Interest Rate Swap 1,061 — 1,061 — Total $ 1,087 $ — $ 1,087 $ — Liabilities: Forward Currency Contracts $ 57 $ — $ 57 $ — Interest Rate Swap — — — — Total $ 57 $ — $ 57 $ — The following table summarizes the Company’s derivative positions at March 31, 2017 : Position Notional Amount Weighted Average Remaining Maturity In Years Average Exchange Rate USD/EURO Sell € 3,400,000 0.3 1.07 USD/British Pound Sell £ 4,595,000 0.3 1.26 EURO/British Pound Sell £ 5,700,000 0.3 .85 Interest Rate Swap $ 242,812,500 3.6 The Company had no transfers between Level 1, 2 or 3 inputs during the quarter ended March 31, 2017 . Certain financial instruments are required to be recorded at fair value. Changes in assumptions or estimation methods could affect the fair value estimates; however, the Company does not believe any such changes would have a material impact on its financial condition, results of operations or cash flows. Other financial instruments including cash and cash equivalents and short-term borrowings, including notes payable, are recorded at cost, which approximates fair value, which is based on Level 2 inputs as previously defined.

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Revenues	Revenues Revenues include construction, engineering and installation revenues that are recognized using the percentage-of-completion method of accounting in the ratio of costs incurred to estimated final costs. Revenues from change orders, extra work and variations in the scope of work are recognized when it is probable that they will result in additional contract revenue and when the amount can be reliably estimated. Contract costs include all direct material and labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools and equipment costs. The Company expenses all pre-contract costs in the period these costs are incurred. Since the financial reporting of these contracts depends on estimates, which are assessed continually during the term of these contracts, recognized revenues and profit are subject to revisions as the contract progresses to completion. Revisions in profit estimates are reflected in the period in which the facts that give rise to the revision become known. If material, the effects of any changes in estimates are disclosed in the notes to the consolidated financial statements. When estimates indicate that a loss will be incurred on a contract, a provision for the expected loss is recorded in the period in which the loss becomes evident. Any revenue recognized is only to the extent costs have been recognized in the period. Additionally, the Company expenses all costs for unpriced change orders in the period in which they are incurred. Revenues from the Company’s Energy Services segment are derived mainly from multiple engineering and construction type contracts, as well as maintenance contracts, under multi-year long-term master service agreements and alliance contracts. Businesses within the Company’s Energy Services segment enter into customer contracts that contain three principal types of pricing provisions: time and materials, cost plus fixed fee and fixed price. Although the terms of these contracts vary, most are made pursuant to cost reimbursable contracts on a time and materials basis under which revenues are recorded based on costs incurred at agreed upon contractual rates. These businesses also perform services on a cost plus fixed fee basis under which revenues are recorded based upon costs incurred at agreed upon rates and a proportionate amount of the fixed fee or percentage stipulated in the contract.
Foreign Currency Translation	Foreign Currency Translation For the Company’s international subsidiaries, the local currency is generally the functional currency. Assets and liabilities of these subsidiaries are translated into U.S. dollars using rates in effect at the balance sheet date while revenues and expenses are translated into U.S. dollars using average exchange rates. The cumulative translation adjustment resulting from changes in exchange rates are included in the Consolidated Balance Sheets as a component of accumulated other comprehensive income (loss) in total stockholders’ equity. The Company’s accumulated other comprehensive loss is comprised of three main components: (i) currency translation; (ii) gains and losses associated with the Company’s defined benefit plan in the United Kingdom; and (iii) derivatives
Taxation	Taxation The Company provides for estimated income taxes payable or refundable on current year income tax returns as well as the estimated future tax effects attributable to temporary differences and carryforwards, based upon enacted tax laws and tax rates, and in accordance with FASB ASC 740, Income Taxes (“FASB ASC 740”). FASB ASC 740 also requires that a valuation allowance be recorded against any deferred tax assets that are not likely to be realized in the future. Refer to Note 8 for additional information regarding taxes on income.
Purchase Price Accounting	Purchase Price Accounting The Company accounts for its acquisitions in accordance with FASB ASC 805, Business Combinations . The base cash purchase price plus the estimated fair value of any non-cash or contingent consideration given for an acquired business is allocated to the assets acquired (including identified intangible assets) and liabilities assumed based on the estimated fair values of such assets and liabilities. The excess of the total consideration over the aggregate net fair values assigned is recorded as goodwill. Contingent consideration, if any, is recognized as a liability as of the acquisition date with subsequent adjustments recorded in the consolidated statements of operations. Indirect and general expenses related to business combinations are expensed as incurred. The Company typically determines the fair value of tangible and intangible assets acquired in a business combination using independent valuations that rely on management’s estimates of inputs and assumptions that a market participant would use. Key assumptions include cash flow projections, growth rates, asset lives, and discount rates based on an analysis of weighted average cost of capital.
Long-Lived Assets	Long-Lived Assets Property, plant and equipment and other identified intangibles (primarily customer relationships, patents and acquired technologies, trademarks, licenses and non-compete agreements) are recorded at cost, net of accumulated depreciation and impairment and, except for goodwill and certain trademarks, are depreciated or amortized on a straight-line basis over their estimated useful lives. Changes in circumstances such as technological advances, changes to the Company’s business model or changes in the Company’s capital strategy can result in the actual useful lives differing from the Company’s estimates. If the Company determines that the useful life of its property, plant and equipment or its identified intangible assets should be changed, the Company would depreciate or amortize the net book value in excess of the salvage value over its revised remaining useful life, thereby increasing or decreasing depreciation or amortization expense. Long-lived assets, including property, plant and equipment and other intangibles, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Such impairment tests are based on a comparison of undiscounted cash flows to the recorded value of the asset. The estimate of cash flow is based upon, among other things, assumptions about expected future operating performance. The Company’s estimates of undiscounted cash flow may differ from actual cash flow due to, among other things, technological changes, economic conditions, changes to its business model or changes in its operating performance. If the sum of the undiscounted cash flows (excluding interest) is less than the carrying value, the Company recognizes an impairment loss, measured as the amount by which the carrying value exceeds the fair value of the asset.
Goodwill	Goodwill Acquisitions treated as a business combination generally result in goodwill related to, among other things, synergies, acquired workforce, growth opportunities and market potential. Under FASB ASC 350, the Company assesses recoverability of goodwill on an annual basis or when events or changes in circumstances indicate that the carrying amount of goodwill may not be recoverable. An impairment charge will be recognized to the extent that the implied fair value of a reporting unit is less than its carrying value. Factors that could potentially trigger an impairment review include (but are not limited to): • significant underperformance of a reporting unit relative to expected, historical or forecasted operating results; • significant negative industry or economic trends; • significant changes in the strategy for a segment including extended slowdowns in the reporting unit’s market; • a decrease in market capitalization below the Company’s book value; and • a significant change in regulations. Whether during the annual impairment assessment or during a trigger-based impairment review, the Company determines the fair value of its reporting units and compares such fair value to the carrying value of those reporting units to determine if there are any indications of goodwill impairment. Fair value of reporting units is determined using a combination of two valuation methods: a market approach and an income approach with each method given equal weight in determining the fair value assigned to each reporting unit. Absent an indication of fair value from a potential buyer or similar specific transaction, the Company believes the use of these two methods provides a reasonable estimate of a reporting unit’s fair value. Assumptions common to both methods are operating plans and economic outlooks, which are used to forecast future revenues, earnings and after-tax cash flows for each reporting unit. These assumptions are applied consistently for both methods. The market approach estimates fair value by first determining earnings before interest, taxes, depreciation and amortization (“EBITDA”) multiples for comparable publicly-traded companies with similar characteristics of the reporting unit. The EBITDA multiples for comparable companies are based upon current enterprise value. The enterprise value is based upon current market capitalization and includes a control premium. The Company believes this approach is appropriate because it provides a fair value estimate using multiples from entities with operations and economic characteristics comparable to its reporting units. The income approach is based on forecasted future (debt-free) cash flows that are discounted to present value using factors that consider timing and risk of future cash flows. The Company believes this approach is appropriate because it provides a fair value estimate based upon the reporting unit’s expected long-term operating cash flow performance. Discounted cash flow projections are based on financial forecasts developed from operating plans and economic outlooks, growth rates, estimates of future expected changes in operating margins, terminal value growth rates, future capital expenditures and changes in working capital requirements. Estimates of discounted cash flows may differ from actual cash flows due to, among other things, changes in economic conditions, changes to business models, changes in the Company’s weighted average cost of capital, or changes in operating performance. The discount rate applied to the estimated future cash flows is one of the most significant assumptions utilized under the income approach. The Company determines the appropriate discount rate for each of its reporting units based on the weighted average cost of capital (“WACC”) for each individual reporting unit. The WACC takes into account both the pre-tax cost of debt and cost of equity (including the risk-free rate on twenty year U.S. Treasury bonds), and certain other company-specific and market-based factors. As each reporting unit has a different risk profile based on the nature of its operations, the WACC for each reporting unit is adjusted, as appropriate, to account for company-specific risks. Accordingly, the WACC for each reporting unit may differ.
Investments in Variable Interest Entities	Investments in Variable Interest Entities The Company evaluates all transactions and relationships with variable interest entities (“VIE”) to determine whether the Company is the primary beneficiary of the entities in accordance with FASB ASC 810, Consolidation. The Company’s overall methodology for evaluating transactions and relationships under the VIE requirements includes the following two steps: • determine whether the entity meets the criteria to qualify as a VIE; and • determine whether the Company is the primary beneficiary of the VIE. In performing the first step, the significant factors and judgments that the Company considers in making the determination as to whether an entity is a VIE include: • the design of the entity, including the nature of its risks and the purpose for which the entity was created, to determine the variability that the entity was designed to create and distribute to its interest holders; • the nature of the Company’s involvement with the entity; • whether control of the entity may be achieved through arrangements that do not involve voting equity; • whether there is sufficient equity investment at risk to finance the activities of the entity; and • whether parties other than the equity holders have the obligation to absorb expected losses or the right to receive residual returns. If the Company identifies a VIE based on the above considerations, it then performs the second step and evaluates whether it is the primary beneficiary of the VIE by considering the following significant factors and judgments: • whether the entity has the power to direct the activities of a variable interest entity that most significantly impact the entity’s economic performance; and • whether the entity has the obligation to absorb losses of the entity that could potentially be significant to the variable interest entity or the right to receive benefits from the entity that could potentially be significant to the variable interest entity. Based on its evaluation of the above factors and judgments, as of March 31, 2017 , the Company consolidated any VIEs in which it was the primary beneficiary.
Newly Issued Accounting Pronouncements	Newly Issued Accounting Pronouncements In January 2017, the FASB issued guidance that simplifies the subsequent measurement of goodwill by removing the second step of the two-step impairment test. The standard requires an entity to perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value. The standard is effective for the Company’s fiscal year beginning January 1, 2020, but early adoption is permitted for interim or annual goodwill impairment tests performed after January 1, 2017. The Company’s adoption of this standard, effective January 1, 2017, did not have a material impact on its consolidated financial statements. In November 2016, the FASB issued guidance requiring that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. As a result, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This new guidance is effective for the Company’s fiscal year beginning January 1, 2018, including interim periods within that fiscal year. Early adoption is permitted, and the new guidance is to be applied retrospectively. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements, other than the classification of restricted cash on the consolidated statement of cash flows. In August 2016, the FASB issued guidance to address diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The standard is effective for the Company’s fiscal year beginning January 1, 2018, including interim periods within that fiscal year. Early adoption is permitted, and the new guidance is to be applied retrospectively. The Company is currently evaluating the effect the guidance will have on its statement of cash flows. In March 2016, the FASB issued guidance that simplifies several aspects of the accounting for share-based payment awards to employees, including the accounting for income taxes, classification of awards as either equity or liabilities and classification in the statement of cash flows. The standard is effective for the Company’s fiscal year beginning January 1, 2017, including interim periods within that fiscal year. The Company’s adoption of this standard, effective January 1, 2017, did not have a material impact on its consolidated financial statements. In February 2016, the FASB issued guidance that requires lessees to present right-of-use assets and lease liabilities on the balance sheet for all leases with lease terms longer than twelve months. The standard is effective for the Company’s fiscal year beginning January 1, 2019, including interim periods within that fiscal year. Early adoption is permitted. Entities are required to use the modified retrospective approach for all existing leases as of the effective date; however, the standard provides for certain practical expedients. The Company is currently evaluating the effect the guidance will have on its financial condition and results of operations, including an analysis of its current lease contracts as well as other existing arrangements to determine if they qualify for lease accounting under the new standard. In November 2015, the FASB issued guidance that requires all deferred tax assets and liabilities, along with any related valuation allowance, to be presented as non-current within the Consolidated Balance Sheet. It is effective for the Company’s fiscal year beginning January 1, 2017, including interim periods within that fiscal year . The Company’s adoption of this standard, effective January 1, 2017, did not have a material impact on its consolidated financial statements. Prior period balances were not retrospectively adjusted. In May 2014, the FASB issued guidance that supersedes revenue recognition requirements regarding contracts with customers to transfer goods or services or for the transfer of non-financial assets. Under the new guidance, entities are required to recognize revenue in order to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides a five-step analysis to be performed on transactions to determine when and how revenue is recognized. This new guidance is effective for the Company’s fiscal year beginning January 1, 2018. Early adoption is permitted, although the Company does not intend to do so. Entities are allowed to transition to the new standard either on a full retrospective basis or under the cumulative effect method whereby the entity applies the new revenue standard as of the date of initial application without restatement of comparative period amounts. The Company is still evaluating the impact of the new revenue standard including which transition approach will be applied. The Company has identified a project manager as well as a cross functional project team responsible for assessing the impact on its contracts. The implementation team is finalizing the project’s assessment phase, which included the identification of the Company’s key revenue streams (fixed fee, time and materials, product sales and royalty fees from license arrangements) and the comparison of historical accounting policies and practices to the requirements of the new revenue standard. The implementation team has also made substantial progress in the contract review phase of the project, which included identifying the population of contracts and a deep analysis of the new standard on individual contract terms, and initiated the process of identifying potential changes to business processes, systems and controls to support recognition and disclosure under the new standard. Based on its preliminary assessment, the Company does not anticipate a significant change to the timing of revenue or cost recognition upon adoption of the new revenue standard. Revenues earned from construction, engineering and installation services that are recognized using the percentage-of-completion method of accounting under historical reporting practices are expected to remain largely unchanged. Other less significant revenue streams such as time and materials projects, product sales and royalty fees are still being evaluated, but significant changes are not expected at this time. Approved change orders and revised cost estimates could result in cumulative catch up adjustments to revenue under certain circumstances. We also expect to implement changes to our financial reporting process in order to comply with the disclosure requirements of the new revenue standard.
Segment Reporting	The Company has three operating segments, which are also its reportable segments: Infrastructure Solutions; Corrosion Protection; and Energy Services. The Company’s operating segments correspond to its management organizational structure. Each operating segment has a president who reports to the Company’s chief executive officer, who is also the chief operating decision manager (“CODM”). The operating results and financial information reported by each of the segments are evaluated separately, regularly reviewed and used by the CODM to evaluate segment performance, allocate resources and determine management incentive compensation. The following disaggregated financial results have been prepared using a management approach that is consistent with the basis and manner with which management internally disaggregates financial information for the purpose of making internal operating decisions. The Company evaluates performance based on stand-alone operating income (loss), which includes acquisition-related expenses, restructuring charges and an allocation of corporate-related expenses.
Derivative Financial Instruments	As a matter of policy, the Company uses derivatives for risk management purposes, and does not use derivatives for speculative purposes. From time to time, the Company may enter into foreign currency forward contracts to hedge foreign currency cash flow transactions. For cash flow hedges, a gain or loss is recorded in the Consolidated Statements of Operations upon settlement of the hedge. All of the Company’s hedges that are designated as hedges for accounting purposes were highly effective; therefore, no notable amounts of hedge ineffectiveness were recorded in the Company’s Consolidated Statements of Operations for the outstanding hedged balance.

General (Tables)

General (Tables)	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of contribution to revenues and profits and pro forma	Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions made the following contributions to the Company’s revenues and profits (in thousands): Quarter Ended March 31, 2017 Quarter Ended March 31, 2016 Environmental Techniques Underground Solutions (1) Fyfe LMJ Concrete Underground Solutions (2) Revenues $ 451 $ 6,525 $ 259 $ 1,337 $ 1,383 $ 4,666 Net income (loss) (102 ) (1,319 ) (58 ) (597 ) 50 (124 ) _____________________ (1) The reported net loss for Underground Solutions for the quarter ended March 31, 2017 includes an allocation of corporate expenses of $0.4 million . (2) The reported net loss for Underground Solutions for the quarter ended March 31, 2016 includes inventory step-up expense of $1.2 million recognized as part of the accounting for business combinations. The following pro forma summary presents combined information of the Company as if the Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions acquisitions had occurred at the beginning of the year preceding their acquisition (in thousands, except earnings per share): Quarters Ended March 31, 2017 (1) 2016 (2) Revenues $ 326,057 $ 302,869 Net income (loss) attributable to Aegion Corporation (3) 5,698 (3,330 ) Diluted earnings (loss) per share $ 0.17 $ (0.09 ) _____________________ (1) Includes pro-forma results related to Environmental Techniques. (2) Includes pro-forma results related to Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions. (3) Includes pro-forma adjustments for depreciation and amortization associated with acquired tangible and intangible assets, as if those assets were recorded at the beginning of the year preceding the acquisition date.
Schedule of fair value of assets acquired and liabilities assumed	The following table summarizes the fair value of identified assets and liabilities of the Environmental Techniques, Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions acquisitions at their respective acquisition dates (in thousands): Environmental Techniques Underground Solutions Fyfe Europe LMJ Concrete Solutions Cash $ — $ 3,630 $ — $ — $ — Receivables and cost and estimated earnings in excess of billings 801 6,339 — — 1,469 Inventories 1,281 12,629 — 504 857 Prepaid expenses and other current assets 93 671 — — 18 Property, plant and equipment 1,694 2,755 50 1,194 422 Identified intangible assets 2,011 33,370 513 795 1,722 Deferred income tax assets — 13,282 — — — Other assets — 90 — — Accounts payable (1,025 ) (4,653 ) — — (837 ) Accrued expenses (186 ) (5,900 ) — — (149 ) Billings in excess of cost and estimated earnings — (2,943 ) — — — Deferred income tax liabilities — (14,562 ) — — (482 ) Total identifiable net assets $ 4,669 $ 44,708 $ 563 $ 2,493 $ 3,020 Total consideration recorded $ 8,046 $ 88,370 $ 3,000 $ 3,235 $ 6,393 Less: total identifiable net assets 4,669 44,708 563 2,493 3,020 Goodwill at March 31, 2017 $ 3,377 $ 43,662 $ 2,437 $ 742 $ 3,373

Accounting Policies (Tables)

Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The Company’s accumulated other comprehensive loss is comprised of three main components: (i) currency translation; (ii) gains and losses associated with the Company’s defined benefit plan in the United Kingdom; and (iii) derivatives (in thousands): March 31, 2017 December 31, 2016 Currency translation adjustments $ (51,313 ) $ (54,863 ) Derivative hedging activity 1,808 1,004 Pension activity 365 359 Total accumulated other comprehensive loss $ (49,140 ) $ (53,500 )
Financial data for consolidated variable interest entities	Financial data for consolidated variable interest entities are summarized in the following table (in thousands): Balance sheet data (1) March 31, December 31, Current assets $ 76,863 $ 51,354 Non-current assets 24,757 25,607 Current liabilities 48,065 29,324 Non-current liabilities 31,496 28,849 Quarters Ended March 31, Income statement data (1) 2017 2016 Revenue $ 34,061 $ 14,736 Gross profit 5,530 639 Net income (loss) attributable to Aegion Corporation 1,272 (2,940 ) __________________________ (1) During the first quarter of 2017, increased activity was primarily driven from our joint venture in Louisiana, which continued its work on a large deepwater pipe coating and insulation project.

Restructuring (Tables)

Restructuring (Tables)	3 Months Ended
	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Summary of restructuring and related costs	The following tables summarize all charges related to the 2016 Restructuring recognized in the first quarter of 2016 as presented in their affected line in the Consolidated Statements of Operations (in thousands): Quarter Ended March 31, 2016 Cost of revenues (1) $ 49 Operating expenses (2) 2,963 Restructuring charges (3) 6,730 Total pre-tax restructuring charges (4) $ 9,742 __________________________ (1) All charges relate to Infrastructure Solutions. (2) Includes: (i) charges of $0.2 million related to Infrastructure Solutions; (ii) charges of $0.3 million related to Corrosion Protection; and (iii) charges of $2.5 million related to Energy Services. (3) Includes: (i) charges of $1.9 million related to Infrastructure Solutions; (ii) charges of $2.4 million related to Corrosion Protection; and (iii) charges of $2.4 million related to Energy Services. (4) All charges incurred during the quarter will be settled in cash, either during the current quarter or future periods. During the first quarter of 2016, the Company recorded pre-tax expense related to the 2016 Restructuring as follows (in thousands): Quarter Ended March 31, 2016 Infrastructure Solutions Corrosion Protection Energy Services Total Severance and benefit related costs $ 1,912 $ 2,420 $ 1,309 $ 5,641 Lease termination costs — — 969 969 Relocation and other moving costs — — 120 120 Other restructuring costs (1) 241 317 2,454 3,012 Total pre-tax restructuring charges (reversals) (2) $ 2,153 $ 2,737 $ 4,852 $ 9,742 __________________________ (1) Includes charges primarily related to downsizing the Company’s upstream operations in California, inclusive of wind-down costs, professional fees, fixed asset disposals and certain other restructuring charges. (2) Includes $1.0 million of corporate-related restructuring charges that have been allocated to the reportable segments.
Summary of restructuring activity	The following tables summarize the 2016 Restructuring activity during the first quarters of 2017 and 2016 (in thousands): Reserves at December 31, 2016 2017 Utilized in 2017 Reserves at Cash (1) Non-Cash Severance and benefit related costs $ 645 $ — $ 228 $ — $ 417 Lease termination costs 125 — 30 — 95 Relocation and other moving costs 10 — 10 — — Other restructuring costs 120 — 32 — 88 Total pre-tax restructuring charges $ 900 $ — $ 300 $ — $ 600 __________________________ (1) Refers to cash utilized to settle charges, either those reserved at December 31, 2016 or charged to income during the first quarter of 2017. 2016 Utilized in 2016 Reserves at Cash (1) Non-Cash Severance and benefit related costs $ 5,641 $ 3,062 $ — $ 2,579 Lease termination costs 969 583 — 386 Relocation and other moving costs 120 120 — — Other restructuring costs 3,012 2,906 — 106 Total pre-tax restructuring charges $ 9,742 $ 6,671 $ — $ 3,071 __________________________ (1) Refers to cash utilized to settle charges during the first quarter of 2016.

Share Information (Tables)

Share Information (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares	Earnings per share have been calculated using the following share information: Quarters Ended March 31, 2017 2016 Weighted average number of common shares used for basic EPS 33,819,331 35,488,580 Effect of dilutive stock options and restricted and deferred stock unit awards 685,257 — Weighted average number of common shares and dilutive potential common stock used in dilutive EPS 34,504,588 35,488,580

Goodwill and Identified Intan24

Goodwill and Identified Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Goodwill The following table presents a reconciliation of the beginning and ending balances of the Company’s goodwill at January 1, 2017 and March 31, 2017 (in thousands): Infrastructure Corrosion Energy Total Balance, January 1, 2017 Goodwill, gross $ 239,494 $ 73,875 $ 80,246 $ 393,615 Accumulated impairment losses (16,069 ) (45,400 ) (33,527 ) (94,996 ) Goodwill, net 223,425 28,475 46,719 298,619 Acquisitions (1) 3,377 — — 3,377 Foreign currency translation 688 65 — 753 Balance, March 31, 2017 Goodwill, gross 243,559 73,940 80,246 397,745 Accumulated impairment losses (16,069 ) (45,400 ) (33,527 ) (94,996 ) Goodwill, net $ 227,490 $ 28,540 $ 46,719 $ 302,749 __________________________ (1) During the first quarter of 2017 , the Company recorded goodwill of $3.4 million related to the acquisition of Environmental Techniques (see Note 1).
Schedule of Identified Intangible Assets	Identified Intangible Assets Identified intangible assets consisted of the following (in thousands): March 31, 2017 December 31, 2016 Weighted Average Useful Lives (Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount License agreements 9.3 $ 4,426 $ (3,488 ) $ 938 $ 4,418 $ (3,438 ) $ 980 Leases 10.6 2,065 (948 ) 1,117 2,065 (912 ) 1,153 Trademarks (1) 13.7 24,664 (8,285 ) 16,379 24,185 (7,868 ) 16,317 Non-competes 1.6 1,309 (1,082 ) 227 1,308 (1,054 ) 254 Customer relationships (1) 11.2 189,416 (56,898 ) 132,518 187,554 (53,830 ) 133,724 Patents and acquired technology 10.0 66,526 (24,603 ) 41,923 66,222 (23,739 ) 42,483 $ 288,406 $ (95,304 ) $ 193,102 $ 285,752 $ (90,841 ) $ 194,911 __________________________ (1) During the first quarter of 2017 , the Company recorded trademarks of $0.4 million and customer relationships of $1.6 million related to the acquisition of Environmental Techniques (see Note 1).
Schedule of Estimated Amortization Expense	Estimated amortization expense by year is as follows (in thousands): 2017 $ 17,320 2018 17,305 2019 17,049 2020 16,925 2021 16,878

Long-Term Debt and Credit Fac25

Long-Term Debt and Credit Facility (Tables)	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Schedule of Long-term Debt	Long-term debt, term note and notes payable consisted of the following (in thousands): March 31, December 31, Term note, due October 30, 2020, annualized rates of 3.27% and 3.08%, respectively $ 323,750 $ 328,125 Line of credit, 3.18% and 2.96%, respectively 46,000 36,000 Other notes with interest rates from 3.3% to 6.5% 9,881 9,901 Subtotal 379,631 374,026 Less – Current maturities of long-term debt 22,020 19,835 Less – Unamortized loan costs 3,184 3,406 Total $ 354,427 $ 350,785

Stockholders' Equity and Equi26

Stockholders' Equity and Equity Compensation (Tables)	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Summary of all stock award activity	A summary of the stock award activity is as follows: Quarter Ended Stock Awards Weighted Average Award Date Fair Value Outstanding at January 1, 2017 1,501,021 $ 18.78 Restricted shares awarded — — Restricted stock units awarded 222,895 23.09 Performance stock units awarded 213,436 23.04 Restricted shares distributed (158,306 ) 22.71 Restricted stock units distributed (62,164 ) 22.29 Performance stock units distributed (49,672 ) 21.95 Restricted shares forfeited (1,084 ) 23.01 Restricted stock units forfeited (5,734 ) 17.76 Performance stock units forfeited (29,978 ) 18.99 Outstanding at March 31, 2017 1,630,414 $ 19.31
Summary of all deferred stock unit activity	A summary of deferred stock unit activity is as follows: Quarter Ended Deferred Stock Units Weighted Average Award Date Fair Value Outstanding at January 1, 2017 253,445 $ 19.93 Awarded 3,026 24.06 Distributed — — Outstanding at March 31, 2017 256,471 $ 19.98
Summary of stock option activity	A summary of stock option activity is as follows: Quarter Ended Shares Weighted Average Exercise Price Outstanding at January 1, 2017 170,253 $ 21.99 Granted — — Exercised — — Canceled/Expired — — Outstanding at March 31, 2017 170,253 $ 21.99 Exercisable at March 31, 2017 170,253 $ 21.99
Financial data for stock option exercises	Financial data for stock option exercises are summarized as follows (in thousands): Quarters Ended 2017 2016 Amount collected from stock option exercises $ — $ 306 Total intrinsic value of stock option exercises — 352 Tax shortfall of stock option exercises recorded in additional paid-in-capital — 18 Aggregate intrinsic value of outstanding stock options 444 320 Aggregate intrinsic value of exercisable stock options 444 320

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Financial Information by Segment	Financial information by segment was as follows (in thousands): Quarters Ended 2017 (1) 2016 (2) Revenues: Infrastructure Solutions $ 128,868 $ 125,762 Corrosion Protection 123,390 92,446 Energy Services 72,917 75,700 Total revenues $ 325,175 $ 293,908 Gross profit: Infrastructure Solutions $ 31,251 $ 29,744 Corrosion Protection 27,963 17,199 Energy Services 8,198 7,471 Total gross profit $ 67,412 $ 54,414 Operating income (loss): Infrastructure Solutions (3) $ 5,610 $ 5,808 Corrosion Protection (4) 7,212 (5,670 ) Energy Services (5) 1,311 (4,277 ) Total operating income (loss) 14,133 (4,139 ) Other income (expense): Interest expense (4,047 ) (3,615 ) Interest income 49 32 Other (387 ) (973 ) Total other expense (4,385 ) (4,556 ) Income (loss) before taxes on income $ 9,748 $ (8,695 ) _______________________ (1) Results include: (i) $0.1 million of 2014 Restructuring expense reversals; and (ii) $0.5 million of costs incurred related to the acquisitions of Environmental Techniques and other acquisition targets. (2) Results include: (i) $9.7 million of 2016 Restructuring charges (see Note 3); (ii) $0.2 million of 2014 Restructuring expense reversals; (iii) $1.0 million of costs incurred related to the acquisition of Underground Solutions and other acquisition targets; and (iv) inventory step up expense of $1.2 million recognized as part of the accounting for business combinations (see Note 1). (3) Operating income in the first quarter of 2017 includes: (i) $0.1 million of 2014 Restructuring expense reversals; and (ii) $0.5 million of costs incurred related to the acquisition of Environmental Techniques and other acquisition targets. Operating income in the first quarter of 2016 includes: (i) $2.2 million of 2016 Restructuring charges (see Note 3); (ii) $0.2 million of 2014 Restructuring expense reversals; (iii) $1.0 million of costs incurred related to the acquisitions of Underground Solutions and other acquisition targets; and (iv) inventory step up expense of $1.2 million recognized as part of the accounting for business combinations (see Note 1). (4) Operating loss in the first quarter of 2016 includes $2.7 million of 2016 Restructuring charges (see Note 3). (5) Operating loss in the first quarter of 2016 includes $4.9 million of 2016 Restructuring charges (see Note 3)
Summary of Revenues, Gross Profit, and Operating Income by Geographic Region	The following table summarizes revenues, gross profit and operating income by geographic region (in thousands): Quarters Ended 2017 2016 Revenues (1) : United States $ 257,724 $ 223,569 Canada 26,827 27,619 Europe 16,145 13,821 Other foreign 24,479 28,899 Total revenues $ 325,175 $ 293,908 Gross profit: United States $ 56,032 $ 39,862 Canada 4,514 5,414 Europe 3,159 2,789 Other foreign 3,707 6,349 Total gross profit $ 67,412 $ 54,414 Operating income (loss): United States $ 12,517 $ (7,552 ) Canada 1,460 1,569 Europe 408 159 Other foreign (252 ) 1,685 Total operating income (loss) $ 14,133 $ (4,139 ) __________________________ (1) Revenues are attributed to the country of origin for the Company’s legal entities. For a significant majority of its legal entities, the country of origin relates to the country or geographic area that it services.

Derivative Financial Instrume28

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of fair value amounts of derivative instruments	The following table provides a summary of the fair value amounts of our derivative instruments, all of which are Level 2 inputs as defined below (in thousands): Designation of Derivatives Balance Sheet Location March 31, December 31, Derivatives Designated as Hedging Instruments: Interest Rate Swaps Other non-current assets $ 1,863 $ 1,061 Total Assets $ 1,863 $ 1,061 Forward Currency Contracts Accrued expenses $ 55 $ 57 Total Liabilities $ 55 $ 57 Derivatives Not Designated as Hedging Instruments: Forward Currency Contracts Prepaid expenses and other current assets $ — $ 26 Total Assets $ — $ 26 Forward Currency Contracts Accrued expenses $ 41 $ — Total Liabilities $ 41 $ — Total Derivative Assets $ 1,863 $ 1,087 Total Derivative Liabilities 96 57 Total Net Derivative Asset (Liability) $ 1,767 $ 1,030
Schedule of assets and liabilities measured at fair value on a recurring basis	The following tables represent assets and liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands): Total Fair Value at Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Forward Currency Contracts $ — $ — $ — $ — Interest Rate Swap 1,863 — 1,863 — Total $ 1,863 $ — $ 1,863 $ — Liabilities: Forward Currency Contracts $ 96 $ — $ 96 $ — Interest Rate Swap — — — — Total $ 96 $ — $ 96 $ — Total Fair Value at Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Forward Currency Contracts $ 26 $ — $ 26 $ — Interest Rate Swap 1,061 — 1,061 — Total $ 1,087 $ — $ 1,087 $ — Liabilities: Forward Currency Contracts $ 57 $ — $ 57 $ — Interest Rate Swap — — — — Total $ 57 $ — $ 57 $ —
Summary of derivative positions	The following table summarizes the Company’s derivative positions at March 31, 2017 : Position Notional Amount Weighted Average Remaining Maturity In Years Average Exchange Rate USD/EURO Sell € 3,400,000 0.3 1.07 USD/British Pound Sell £ 4,595,000 0.3 1.26 EURO/British Pound Sell £ 5,700,000 0.3 .85 Interest Rate Swap $ 242,812,500 3.6

General - Additional Informatio

General - Additional Information (Details) $ in Thousands, € in Millions, £ in Millions, NZD in Millions

Mar. 01, 2017GBP (£)

Mar. 01, 2017USD ($)

Jul. 01, 2016NZDcompany

Jul. 01, 2016USD ($)company

Jun. 02, 2016EUR (€)

Jun. 02, 2016USD ($)

May 13, 2016USD ($)country

Feb. 18, 2016USD ($)

Feb. 01, 2016USD ($)

Mar. 31, 2017USD ($)

Mar. 01, 2017USD ($)

Jul. 01, 2016USD ($)

Environmental Techniques

General [Line Items]

Total consideration recorded

£ 6.5

$ 8,000

Amount held in escrow

£ 1

$ 1,200

CSL and BCS

General [Line Items]

Total consideration recorded

NZD 8.9

$ 6,400

Amount held in escrow

NZD 0.5

$ 400

Number of companies acquired | company

2

2

Cash payments to acquire business

NZD 7.5

$ 5,500

Milestone payments

2

1,400

Working capital adjustment

0.2

$ 100

Estimated earnout consideration

NZD 1.2

$ 900

LMJ

General [Line Items]

Total consideration recorded

€ 2.9

$ 3,235

Fyfe Europe

General [Line Items]

Total consideration recorded

$ 3,000

Cash payments to acquire business

$ 2,800

Number of countries in which entity operates | country

72

Contingent consideration paid

$ 200

Underground Solutions

General [Line Items]

Total consideration recorded

$ 88,370

Cash payments to acquire business

85,000

Discounted value of net operating loss tax assets

5,000

Consideration transferred, funds held in escrow

6,300

Working capital adjustment

$ (1,600)

Bayou Perma-Pipe Canada, Ltd

General [Line Items]

Ownership interest

51.00%

Consideration received

$ 9,600

Proceeds from divestiture

7,600

Disposal, note receivable

$ 2,000

General - Contributions to Reve

General - Contributions to Revenues and Profits Since Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Environmental Techniques
Business Acquisition [Line Items]
Revenues	$ 451
Net income (loss)	(102)
Underground Solutions
Business Acquisition [Line Items]
Revenues	6,525	$ 4,666
Net income (loss)	(1,319)	(124)
Inventory step up expense		$ 1,200
Fyfe Europe
Business Acquisition [Line Items]
Revenues	259
Net income (loss)	(58)
LMJ
Business Acquisition [Line Items]
Revenues	1,337
Net income (loss)	(597)
Concrete Solutions
Business Acquisition [Line Items]
Revenues	1,383
Net income (loss)	50
Corporate, Non-Segment | Underground Solutions
Business Acquisition [Line Items]
Net income (loss)	$ (400)

General - Pro Forma Information

General - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Revenues	$ 326,057	$ 302,869
Net income (loss) attributable to Aegion Corporation	$ 5,698	$ (3,330)
Diluted earnings (loss) per share (in dollars per share)	$ 0.17	$ (0.09)

General - Fair Value of Identif

General - Fair Value of Identified Assets and Liabilities (Details) $ in Thousands, € in Millions, £ in Millions	Mar. 01, 2017GBP (£)	Mar. 01, 2017USD ($)	Jul. 01, 2016USD ($)	Jun. 02, 2016EUR (€)	Jun. 02, 2016USD ($)	May 13, 2016USD ($)	Feb. 18, 2016USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Business Acquisition [Line Items]
Goodwill								$ 302,749	$ 298,619
Environmental Techniques
Business Acquisition [Line Items]
Cash		$ 0
Receivables and cost and estimated earnings in excess of billings		801
Inventories		1,281
Prepaid expenses and other current assets		93
Property, plant and equipment		1,694
Identified intangible assets		2,011
Deferred income tax assets		0
Other assets		0
Accounts payable		(1,025)
Accrued expenses		(186)
Billings in excess of cost and estimated earnings		0
Deferred income tax liabilities		0
Total identifiable net assets		4,669
Total consideration recorded	£ 6.5	8,000
Less: total identifiable net assets		4,669
Goodwill		$ 3,377
Underground Solutions
Business Acquisition [Line Items]
Cash							$ 3,630
Receivables and cost and estimated earnings in excess of billings							6,339
Inventories							12,629
Prepaid expenses and other current assets							671
Property, plant and equipment							2,755
Identified intangible assets							33,370
Deferred income tax assets							13,282
Other assets							90
Accounts payable							(4,653)
Accrued expenses							(5,900)
Billings in excess of cost and estimated earnings							(2,943)
Deferred income tax liabilities							(14,562)
Total identifiable net assets							44,708
Total consideration recorded							88,370
Less: total identifiable net assets							$ 44,708
Goodwill								43,662
Fyfe Europe
Business Acquisition [Line Items]
Cash						$ 0
Receivables and cost and estimated earnings in excess of billings						0
Inventories						0
Prepaid expenses and other current assets						0
Property, plant and equipment						50
Identified intangible assets						513
Deferred income tax assets						0
Other assets
Accounts payable						0
Accrued expenses						0
Billings in excess of cost and estimated earnings						0
Deferred income tax liabilities						0
Total identifiable net assets						563
Total consideration recorded						3,000
Less: total identifiable net assets						$ 563
Goodwill								2,437
LMJ
Business Acquisition [Line Items]
Cash					$ 0
Receivables and cost and estimated earnings in excess of billings					0
Inventories					504
Prepaid expenses and other current assets					0
Property, plant and equipment					1,194
Identified intangible assets					795
Deferred income tax assets					0
Other assets					0
Accounts payable					0
Accrued expenses					0
Billings in excess of cost and estimated earnings					0
Deferred income tax liabilities					0
Total identifiable net assets					2,493
Total consideration recorded				€ 2.9	3,235
Less: total identifiable net assets					$ 2,493
Goodwill								742
Concrete Solutions
Business Acquisition [Line Items]
Cash			$ 0
Receivables and cost and estimated earnings in excess of billings			1,469
Inventories			857
Prepaid expenses and other current assets			18
Property, plant and equipment			422
Identified intangible assets			1,722
Deferred income tax assets			0
Other assets			0
Accounts payable			(837)
Accrued expenses			(149)
Billings in excess of cost and estimated earnings			0
Deferred income tax liabilities			(482)
Total identifiable net assets			3,020
Total consideration recorded			6,393
Less: total identifiable net assets			$ 3,020
Goodwill								$ 3,373

Accounting Policies - Accumulat

Accounting Policies - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Currency translation adjustments	$ (51,313)	$ (54,863)
Derivative hedging activity	1,808	1,004
Pension activity	365	359
Total accumulated other comprehensive loss	$ (49,140)	$ (53,500)

Accounting Policies - Additiona

Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounting Policies [Abstract]
Net foreign exchange transaction gains (loss)	$ 378	$ 1,131

Accounting Policies - VIE Balan

Accounting Policies - VIE Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Current assets	$ 76,863	$ 51,354
Non-current assets	24,757	25,607
Current liabilities	48,065	29,324
Non-current liabilities	$ 31,496	$ 28,849

Accounting Policies - VIE Incom

Accounting Policies - VIE Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounting Policies [Abstract]
Revenue	$ 34,061	$ 14,736
Gross profit	5,530	639
Net income (loss) attributable to Aegion Corporation	$ 1,272	$ (2,940)

Restructuring - Additional Info

Restructuring - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2017USD ($)	Mar. 31, 2016USD ($)employee	Dec. 31, 2016USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 6,797,000
Restructuring Plan 2016
Restructuring Cost and Reserve [Line Items]
Number of terminations during period | employee		964
Number of positions eliminated, percent		15.50%
Restructuring charges	0	$ 9,742,000	$ 16,100,000
Restructuring charges, net of tax			$ 10,300,000
Pre-tax charges (reversals) related to restructuring	0	9,742,000
Utilized - Non-Cash	0	0
Utilized - Cash	300,000	6,671,000
Restructuring Plan 2016 | Infrastructure Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,153,000
Restructuring Plan 2016 | Corrosion Protection
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,737,000
Restructuring Plan 2016 | Energy Services
Restructuring Cost and Reserve [Line Items]
Restructuring charges		4,852,000
Employee Severance and Lease Termination | Restructuring Plan 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	6,700,000
Corporate, Non-Segment | Restructuring Plan 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 1,000,000

Restructuring - Restructuring C

Restructuring - Restructuring Costs by Segment (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring	$ 0	$ 6,797,000
Restructuring Plan 2016
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring	$ 0	9,742,000	$ 16,100,000
Restructuring Plan 2016 | Corporate, Non-Segment
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		1,000,000
Restructuring Plan 2016 | Severance and benefit related costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		5,641,000
Restructuring Plan 2016 | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		969,000
Restructuring Plan 2016 | Relocation and other moving costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		120,000
Restructuring Plan 2016 | Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		3,012,000
Restructuring Plan 2016 | Infrastructure Solutions
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		2,153,000
Restructuring Plan 2016 | Infrastructure Solutions | Severance and benefit related costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		1,912,000
Restructuring Plan 2016 | Infrastructure Solutions | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		0
Restructuring Plan 2016 | Infrastructure Solutions | Relocation and other moving costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		0
Restructuring Plan 2016 | Infrastructure Solutions | Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		241,000
Restructuring Plan 2016 | Corrosion Protection
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		2,737,000
Restructuring Plan 2016 | Corrosion Protection | Severance and benefit related costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		2,420,000
Restructuring Plan 2016 | Corrosion Protection | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		0
Restructuring Plan 2016 | Corrosion Protection | Relocation and other moving costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		0
Restructuring Plan 2016 | Corrosion Protection | Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		317,000
Restructuring Plan 2016 | Energy Services
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		4,852,000
Restructuring Plan 2016 | Energy Services | Severance and benefit related costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		1,309,000
Restructuring Plan 2016 | Energy Services | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		969,000
Restructuring Plan 2016 | Energy Services | Relocation and other moving costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		120,000
Restructuring Plan 2016 | Energy Services | Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Pre-tax charges related to restructuring		$ 2,454,000

Restructuring - Restructuring R

Restructuring - Restructuring Reserve by Type of Cost (Details) - Restructuring Plan 2016 - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring	$ 0	$ 9,742,000
Cost of revenues
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		49,000
Operating expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		2,963,000
Restructuring charges
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		6,730,000
Infrastructure Solutions | Operating expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		200,000
Infrastructure Solutions | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		1,900,000
Corrosion Protection | Operating expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		300,000
Corrosion Protection | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		2,400,000
Energy Services | Operating expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		2,500,000
Energy Services | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Pre-tax charges (reversals) related to restructuring		$ 2,400,000

Restructuring - Restructuring P

Restructuring - Restructuring Plan Activity (Details) - Restructuring Plan 2016 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Restructuring Reserve [Roll Forward]
Beginning balance	$ 900
Charge (Credit) to Income	0	$ 9,742
Utilized - Cash	300	6,671
Utilized - Non-Cash	0	0
Ending balance	600	3,071
Severance and benefit related costs
Restructuring Reserve [Roll Forward]
Beginning balance	645
Charge (Credit) to Income	0	5,641
Utilized - Cash	228	3,062
Utilized - Non-Cash	0	0
Ending balance	417	2,579
Lease termination costs
Restructuring Reserve [Roll Forward]
Beginning balance	125
Charge (Credit) to Income	0	969
Utilized - Cash	30	583
Utilized - Non-Cash	0	0
Ending balance	95	386
Relocation and other moving costs
Restructuring Reserve [Roll Forward]
Beginning balance	10
Charge (Credit) to Income	0	120
Utilized - Cash	10	120
Utilized - Non-Cash	0	0
Ending balance	0	0
Other restructuring costs
Restructuring Reserve [Roll Forward]
Beginning balance	120
Charge (Credit) to Income	0	3,012
Utilized - Cash	32	2,906
Utilized - Non-Cash	0	0
Ending balance	$ 88	$ 106

Share Information - Earnings Pe

Share Information - Earnings Per Share Calculation (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Weighted average number of common shares used for basic EPS (in shares)	33,819,331	35,488,580
Effect of dilutive stock options and restricted and deferred stock unit awards (in shares)	685,257	0
Weighted average number of common shares and dilutive potential common stock used in dilutive EPS (in shares)	34,504,588	35,488,580

Share Information - Additional

Share Information - Additional Information (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from calculation of earnings per share (in shares)		391,885
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from calculation of earnings per share (in shares)	77,807	164,014

Goodwill and Identified Intan43

Goodwill and Identified Intangible Assets - Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Goodwill [Roll Forward]
Goodwill, gross	$ 393,615
Accumulated impairment losses	(94,996)
Goodwill, beginning balance	298,619
Additions to goodwill through acquisitions	3,377
Foreign currency translation	753
Goodwill, gross	397,745
Accumulated impairment losses	(94,996)
Goodwill, ending balance	302,749
Environmental Techniques
Goodwill [Roll Forward]
Additions to goodwill through acquisitions	3,400
Infrastructure Solutions
Goodwill [Roll Forward]
Goodwill, gross	239,494
Accumulated impairment losses	(16,069)
Goodwill, beginning balance	223,425
Additions to goodwill through acquisitions	3,377
Foreign currency translation	688
Goodwill, gross	243,559
Accumulated impairment losses	(16,069)
Goodwill, ending balance	227,490
Corrosion Protection
Goodwill [Roll Forward]
Goodwill, gross	73,875
Accumulated impairment losses	(45,400)
Goodwill, beginning balance	28,475
Additions to goodwill through acquisitions	0
Foreign currency translation	65
Goodwill, gross	73,940
Accumulated impairment losses	(45,400)
Goodwill, ending balance	28,540
Energy Services
Goodwill [Roll Forward]
Goodwill, gross	80,246
Accumulated impairment losses	(33,527)
Goodwill, beginning balance	46,719
Additions to goodwill through acquisitions	0
Foreign currency translation	0
Goodwill, gross	80,246
Accumulated impairment losses	(33,527)
Goodwill, ending balance	$ 46,719

Goodwill and Identified Intan44

Goodwill and Identified Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 288,406	$ 285,752
Accumulated Amortization	(95,304)	(90,841)
Net Carrying Amount	$ 193,102	194,911
License agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	9 years 3 months 9 days
Gross Carrying Amount	$ 4,426	4,418
Accumulated Amortization	(3,488)	(3,438)
Net Carrying Amount	$ 938	980
Leases
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	10 years 7 months 5 days
Gross Carrying Amount	$ 2,065	2,065
Accumulated Amortization	(948)	(912)
Net Carrying Amount	$ 1,117	1,153
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	13 years 8 months 15 days
Gross Carrying Amount	$ 24,664	24,185
Accumulated Amortization	(8,285)	(7,868)
Net Carrying Amount	16,379	16,317
Trademarks | Environmental Techniques
Finite-Lived Intangible Assets [Line Items]
Finite intangible assets acquired	$ 400
Non-competes
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	1 year 7 months 13 days
Gross Carrying Amount	$ 1,309	1,308
Accumulated Amortization	(1,082)	(1,054)
Net Carrying Amount	$ 227	254
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	11 years 2 months 15 days
Gross Carrying Amount	$ 189,416	187,554
Accumulated Amortization	(56,898)	(53,830)
Net Carrying Amount	132,518	133,724
Customer Relationships | Environmental Techniques
Finite-Lived Intangible Assets [Line Items]
Finite intangible assets acquired	$ 1,600
Patents and acquired technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	10 years
Gross Carrying Amount	$ 66,526	66,222
Accumulated Amortization	(24,603)	(23,739)
Net Carrying Amount	$ 41,923	$ 42,483

Goodwill and Identified Intan45

Goodwill and Identified Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 4.3	$ 3.7

Goodwill and Identified Intan46

Goodwill and Identified Intangible Assets - Estimated Future Amortization Expense (Details) $ in Thousands	Mar. 31, 2017USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2,017	$ 17,320
2,018	17,305
2,019	17,049
2,020	16,925
2,021	$ 16,878

Long-Term Debt and Credit Fac47

Long-Term Debt and Credit Facility - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Subtotal	$ 379,631	$ 374,026
Less – Current maturities of long-term debt	22,020	19,835
Less – Unamortized loan costs	3,184	3,406
Total	354,427	350,785
Term Note
Debt Instrument [Line Items]
Term note, due October 30, 2020, annualized rates of 3.27% and 3.08%, respectively	$ 323,750	328,125
Current effective interest rate	3.27%
Line of Credit
Debt Instrument [Line Items]
Line of credit, 3.18% and 2.96%, respectively	$ 46,000	36,000
Current effective interest rate	3.18%
Other notes
Debt Instrument [Line Items]
Other notes with interest rates from 3.3% to 6.5%	$ 9,881	$ 9,901
Other notes | Minimum
Debt Instrument [Line Items]
Current annualized interest rate	3.30%
Other notes | Maximum
Debt Instrument [Line Items]
Current annualized interest rate	6.50%

Long-Term Debt and Credit Fac48

Long-Term Debt and Credit Facility - Additional Information (Details)	1 Months Ended	3 Months Ended
	Oct. 31, 2015USD ($)	Mar. 31, 2017USD ($)	Mar. 31, 2016USD ($)	Jun. 30, 2017	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Amount retired under prior credit facility	$ 344,700,000
Proceeds from line of credit		$ 10,000,000	$ 34,000,000
Debt designated as third-party debt		9,600,000			$ 9,600,000
Third-party notes and bank debt held		300,000			300,000
Long-term debt, fair value		$ 374,000,000			366,000,000
2015 Interest Rate Swap
Debt Instrument [Line Items]
Notional Amount	$ 262,500,000
Fixed interest rate	1.46%
2015 Credit Facility
Debt Instrument [Line Items]
Senior secured credit facility	$ 650,000,000
Maximum borrowing capacity	$ 350,000,000
Term of revolving line of credit	5 years
Term of term loan facility	5 years
Interest rate at period end		3.26%
Secured debt outstanding		$ 323,800,000			328,100,000
Proceeds from line of credit		46,000,000
Letters of credit issued and outstanding		$ 32,700,000
Line of credit					$ 36,000,000
Portion of amortization of term loan	$ 262,500,000
Initial maximum financial leverage ratio		3.75
Actual financial leverage ratio		3.10
Remaining borrowing capacity		$ 80,900,000
Minimum permitted fixed charge coverage ratio		1.25
Actual fixed charge coverage ratio		1.72
2015 Credit Facility | Insurance Carriers Collateral
Debt Instrument [Line Items]
Letters of credit issued and outstanding		$ 15,100,000
2015 Credit Facility | Work Performance Obligations
Debt Instrument [Line Items]
Letters of credit issued and outstanding		$ 17,500,000
2015 Credit Facility | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		1.25%
2015 Credit Facility | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		2.25%
2015 Credit Facility | Underground Solutions
Debt Instrument [Line Items]
Initial maximum financial leverage ratio		4
Credit facility maximum consolidated leverage ratio period		1 year
Scenario, Forecast | 2015 Credit Facility
Debt Instrument [Line Items]
Initial maximum financial leverage ratio				3.50
Line of Credit | 2015 Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 300,000,000
Proceeds from line of credit		$ 10,000,000

Stockholders' Equity and Equi49

Stockholders' Equity and Equity Compensation - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Apr. 30, 2017	Mar. 31, 2017	Mar. 31, 2016	Oct. 31, 2016
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share repurchase program, authorized amount				$ 40,000,000
Closing stock price (in dollars per share)		$ 22.91	$ 21.09
Stock options awarded during period (in shares)		0	0
Stock Awards
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share based compensation expense		$ 3,000,000	$ 2,300,000
Unrecognized share based compensation expense		$ 21,400,000
Weighted average recognition period		2 years 1 month 25 days
Deferred Stock Units
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share based compensation expense		$ 100,000	100,000
Stock Options
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share based compensation expense		0	$ 100,000
Unrecognized pre-tax expense related to stock option grants		$ 0
Stock Options | Minimum
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Award vesting period		7 years
Stock Options | Maximum
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Award vesting period		10 years
2016 Employee Plan
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Number of shares available for issuance (in shares)		207,474
2016 Director Plan
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Number of shares available for issuance (in shares)		161,326
Equity Compensation Programs
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share repurchase program, authorized amount		$ 10,000,000
Stock repurchased during period (in shares)		95,403	52,074
Stock repurchased during period, value		$ 2,100,000	$ 1,000,000
Shares repurchased, average price per share (in dollars per share)		$ 22.37	$ 19.61
Open Market Repurchase Program
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Stock repurchased during period (in shares)		366,914	858,582
Stock repurchased during period, value		$ 8,400,000	$ 15,300,000
Shares repurchased, average price per share (in dollars per share)		$ 22.82	$ 17.83
Subsequent Event | 2016 Employee Plan
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Number of additional shares of common stock authorized (in shares)	1,000,000

Stockholders' Equity and Equi50

Stockholders' Equity and Equity Compensation - Summary of Stock Award Activity (Details)	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Stock Awards
Outstanding, beginning balance (in shares) | shares	1,501,021
Outstanding, ending balance (in shares) | shares	1,630,414
Weighted Average Award Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 18.78
Outstanding, ending balance (in dollars per share) | $ / shares	$ 19.31
Restricted Stock
Stock Awards
Awarded (in shares) | shares	0
Distributed (in shares) | shares	(158,306)
Forfeited (in shares) | shares	(1,084)
Weighted Average Award Date Fair Value
Awarded (in dollars per share) | $ / shares	$ 0
Distributed (in dollars per share) | $ / shares	22.71
Forfeited (in dollars per share) | $ / shares	$ 23.01
Restricted Stock Units
Stock Awards
Awarded (in shares) | shares	222,895
Distributed (in shares) | shares	(62,164)
Forfeited (in shares) | shares	(5,734)
Weighted Average Award Date Fair Value
Awarded (in dollars per share) | $ / shares	$ 23.09
Distributed (in dollars per share) | $ / shares	22.29
Forfeited (in dollars per share) | $ / shares	$ 17.76
Performance Stock Units
Stock Awards
Awarded (in shares) | shares	213,436
Distributed (in shares) | shares	(49,672)
Forfeited (in shares) | shares	(29,978)
Weighted Average Award Date Fair Value
Awarded (in dollars per share) | $ / shares	$ 23.04
Distributed (in dollars per share) | $ / shares	21.95
Forfeited (in dollars per share) | $ / shares	$ 18.99

Stockholders' Equity and Equi51

Stockholders' Equity and Equity Compensation - Summary of Deferred Stock Unit Activity (Details)	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Deferred Stock Units
Outstanding, beginning balance (in shares) | shares	1,501,021
Outstanding, ending balance (in shares) | shares	1,630,414
Weighted Average Award Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 18.78
Outstanding, ending balance (in dollars per share) | $ / shares	$ 19.31
Deferred Stock Units
Deferred Stock Units
Outstanding, beginning balance (in shares) | shares	253,445
Awarded (in shares) | shares	3,026
Distributed (in shares) | shares	0
Outstanding, ending balance (in shares) | shares	256,471
Weighted Average Award Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 19.93
Awarded (in dollars per share) | $ / shares	24.06
Distributed (in dollars per share) | $ / shares	0
Outstanding, ending balance (in dollars per share) | $ / shares	$ 19.98

Stockholders' Equity and Equi52

Stockholders' Equity and Equity Compensation - Summary of Stock Option Activity (Details) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Shares
Outstanding, beginning balance (in shares)	170,253
Granted (in shares)	0	0
Exercised (in shares)	0
Canceled/Expired (in shares)	0
Outstanding, ending balance (in shares)	170,253
Exercisable (in shares)	170,253
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 21.99
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Canceled/Expired (in dollars per share)	0
Outstanding, ending balance (in dollars per share)	21.99
Exercisable (in dollars per share)	$ 21.99

Stockholders' Equity and Equi53

Stockholders' Equity and Equity Compensation - Financial Data for Stock Option Exercises (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Equity [Abstract]
Amount collected from stock option exercises	$ 0	$ 306
Total intrinsic value of stock option exercises	0	352
Tax shortfall of stock option exercises recorded in additional paid-in-capital	0	$ 18
Aggregate intrinsic value of outstanding stock options	444		$ 320
Aggregate intrinsic value of exercisable stock options	$ 444		$ 320

Taxes on Income (Details)

Taxes on Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Effective income tax expense (benefit) rate	20.50%	54.60%
Change in valuation allowance		$ (1.9)

Commitments and Contingencies (

Commitments and Contingencies (Details)	1 Months Ended	3 Months Ended
	Dec. 31, 2016USD ($)lawsuit	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Loss Contingencies [Line Items]
Period of time settlement payment is to be received	4 years
Prepaid expenses and other current assets	$ 51,832,000	$ 38,903,000	$ 51,832,000
Pre-Acquisition Related Contingencies | Brinderson LP
Loss Contingencies [Line Items]
Loss contingency accrual	$ 6,000,000	5,300,000	6,000,000
Change in accrual		700,000
2012 Departure of Key Leaders from Tyfo Fibrwrap
Loss Contingencies [Line Items]
Number of lawsuits settled | lawsuit	2
Gain on litigation settlement			$ 6,600,000
Initial cash payment received for settlement	$ 3,600,000
Cash installments for settlement	$ 750,000
Prepaid expenses and other current assets		750,000
Other assets		$ 2,250,000

Segment Reporting - Additional

Segment Reporting - Additional Information (Details)	3 Months Ended
	Mar. 31, 2017segment
Segment Reporting [Abstract]
Number of operating segments	3
Number of reportable segments	3

Segment Reporting - Financial I

Segment Reporting - Financial Information by Segment (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenues	$ 325,175,000	$ 293,908,000
Gross profit	67,412,000	54,414,000
Operating income (loss)	14,133,000	(4,139,000)
Interest expense	(4,047,000)	(3,615,000)
Interest income	49,000	32,000
Other	(387,000)	(973,000)
Total other expense	(4,385,000)	(4,556,000)
Income (loss) before taxes on income	9,748,000	(8,695,000)
Restructuring charges	0	6,797,000
Acquisition-related expenses	(533,000)	(1,031,000)
Restructuring Plan 2014
Segment Reporting Information [Line Items]
Restructuring charges	(100,000)	(200,000)
Restructuring Plan 2016
Segment Reporting Information [Line Items]
Restructuring charges	0	9,742,000	$ 16,100,000
Environmental Techniques
Segment Reporting Information [Line Items]
Acquisition-related expenses	(500,000)
Underground Solutions
Segment Reporting Information [Line Items]
Acquisition-related expenses		(1,000,000)
Inventory step up expense		1,200,000
Infrastructure Solutions
Segment Reporting Information [Line Items]
Revenues	128,868,000	125,762,000
Gross profit	31,251,000	29,744,000
Operating income (loss)	5,610,000	5,808,000
Infrastructure Solutions | Restructuring Plan 2014
Segment Reporting Information [Line Items]
Restructuring charges	(100,000)	(200,000)
Infrastructure Solutions | Restructuring Plan 2016
Segment Reporting Information [Line Items]
Restructuring charges		2,153,000
Infrastructure Solutions | Environmental Techniques
Segment Reporting Information [Line Items]
Acquisition-related expenses	(500,000)
Infrastructure Solutions | Underground Solutions
Segment Reporting Information [Line Items]
Acquisition-related expenses		(1,000,000)
Corrosion Protection
Segment Reporting Information [Line Items]
Revenues	123,390,000	92,446,000
Gross profit	27,963,000	17,199,000
Operating income (loss)	7,212,000	(5,670,000)
Corrosion Protection | Restructuring Plan 2016
Segment Reporting Information [Line Items]
Restructuring charges		2,737,000
Energy Services
Segment Reporting Information [Line Items]
Revenues	72,917,000	75,700,000
Gross profit	8,198,000	7,471,000
Operating income (loss)	$ 1,311,000	(4,277,000)
Energy Services | Restructuring Plan 2016
Segment Reporting Information [Line Items]
Restructuring charges		$ 4,852,000

Segment Reporting - Summary of

Segment Reporting - Summary of Revenues, Gross Profit and Operating Income (Loss) by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 325,175	$ 293,908
Gross profit	67,412	54,414
Operating income (loss)	14,133	(4,139)
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	257,724	223,569
Gross profit	56,032	39,862
Operating income (loss)	12,517	(7,552)
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	26,827	27,619
Gross profit	4,514	5,414
Operating income (loss)	1,460	1,569
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	16,145	13,821
Gross profit	3,159	2,789
Operating income (loss)	408	159
Other foreign
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	24,479	28,899
Gross profit	3,707	6,349
Operating income (loss)	$ (252)	$ 1,685

Derivative Financial Instrume59

Derivative Financial Instruments - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Oct. 31, 2015
Debt Instrument [Line Items]
Gain upon settlement of cash flow hedges, (less than $0.1 million)	$ 100,000	$ 100,000
2015 Credit Facility
Debt Instrument [Line Items]
Amount of hedged item				$ 262,500,000
Maximum borrowing capacity				350,000,000
Recurring
Debt Instrument [Line Items]
Derivative Liability	96,000		$ 57,000
Recurring | Significant Observable Inputs (Level 2)
Debt Instrument [Line Items]
Derivative Liability	96,000		57,000
Recurring | Designated as Hedging Instrument | Significant Observable Inputs (Level 2)
Debt Instrument [Line Items]
Derivative Liability	$ 55,000		$ 57,000
2015 Interest Rate Swap
Debt Instrument [Line Items]
Notional Amount				$ 262,500,000
Fixed interest rate				1.46%

Derivative Financial Instrume60

Derivative Financial Instruments - Summary of the Fair Value Amounts of Derivative Instruments (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Derivative assets	$ 1,863	$ 1,087
Derivative liabilities	96	57
Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative assets	1,863	1,061
Derivative liabilities	0	0
Forward Currency Contracts
Derivatives, Fair Value [Line Items]
Derivative assets	0	26
Derivative liabilities	96	57
Significant Observable Inputs (Level 2)
Derivatives, Fair Value [Line Items]
Derivative assets	1,863	1,087
Derivative liabilities	96	57
Net derivative asset (liability)	1,767	1,030
Significant Observable Inputs (Level 2) | Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative assets	1,863	1,061
Derivative liabilities	0	0
Significant Observable Inputs (Level 2) | Forward Currency Contracts
Derivatives, Fair Value [Line Items]
Derivative assets	0	26
Derivative liabilities	96	57
Designated as Hedging Instrument | Significant Observable Inputs (Level 2)
Derivatives, Fair Value [Line Items]
Derivative assets	1,863	1,061
Derivative liabilities	55	57
Designated as Hedging Instrument | Significant Observable Inputs (Level 2) | Interest Rate Swaps | Other non-current assets
Derivatives, Fair Value [Line Items]
Derivative assets	1,863	1,061
Designated as Hedging Instrument | Significant Observable Inputs (Level 2) | Forward Currency Contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	55	57
Not Designated as Hedging Instrument | Significant Observable Inputs (Level 2)
Derivatives, Fair Value [Line Items]
Derivative assets	0	26
Derivative liabilities	41	0
Not Designated as Hedging Instrument | Significant Observable Inputs (Level 2) | Forward Currency Contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	41	0
Not Designated as Hedging Instrument | Significant Observable Inputs (Level 2) | Forward Currency Contracts | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	$ 0	$ 26

Derivative Financial Instrume61

Derivative Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets:
Derivative assets	$ 1,863	$ 1,087
Liabilities:
Derivative liabilities	96	57
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Significant Observable Inputs (Level 2)
Assets:
Derivative assets	1,863	1,087
Liabilities:
Derivative liabilities	96	57
Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Forward Currency Contracts
Assets:
Derivative assets	0	26
Liabilities:
Derivative liabilities	96	57
Forward Currency Contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Forward Currency Contracts | Significant Observable Inputs (Level 2)
Assets:
Derivative assets	0	26
Liabilities:
Derivative liabilities	96	57
Forward Currency Contracts | Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Interest Rate Swaps
Assets:
Derivative assets	1,863	1,061
Liabilities:
Derivative liabilities	0	0
Interest Rate Swaps | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Interest Rate Swaps | Significant Observable Inputs (Level 2)
Assets:
Derivative assets	1,863	1,061
Liabilities:
Derivative liabilities	0	0
Interest Rate Swaps | Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	$ 0	$ 0

Derivative Financial Instrume62

Derivative Financial Instruments - Summary of Derivative Positions (Details) - 3 months ended Mar. 31, 2017	GBP (£)$ / €€ / £$ / £	USD ($)$ / €€ / £$ / £
USD/EURO | Sell
Derivative [Line Items]
Notional Amount | $		$ 3,400,000
Weighted Average Remaining Maturity In Years	3 months
Average Exchange Rate | $ / €	1.07	1.07
USD/British Pound | Sell
Derivative [Line Items]
Notional Amount | £	£ 4,595,000
Weighted Average Remaining Maturity In Years	3 months
Average Exchange Rate | $ / £	1.26	1.26
EURO/British Pound | Sell
Derivative [Line Items]
Notional Amount | £	£ 5,700,000
Weighted Average Remaining Maturity In Years	3 months
Average Exchange Rate | € / £	0.85	0.85
Interest Rate Swaps
Derivative [Line Items]
Notional Amount | $		$ 242,812,500
Weighted Average Remaining Maturity In Years	3 years 7 months