Layne Christensen (LAYN) 10-Q 6 Sep 16 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jul. 31, 2016	Aug. 26, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 31, 2016
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Trading Symbol	LAYN
Entity Registrant Name	LAYNE CHRISTENSEN CO
Entity Central Index Key	888,504
Current Fiscal Year End Date	--01-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		19,804,526

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016
Current assets:
Cash and cash equivalents	$ 58,941	$ 65,569
Customer receivables, less allowance of $3,910 and $3,494, respectively	92,135	91,810
Costs and estimated earnings in excess of billings on uncompleted contracts	89,487	88,989
Inventories	21,356	19,540
Other	13,047	18,251
Assets held for sale	3,133	2,135
Total current assets	278,099	286,294
Property and equipment, net	109,349	113,497
Other assets:
Investment in affiliates	56,653	57,364
Other	30,256	31,502
Total other assets	86,909	88,866
Total assets	474,357	488,657
Current liabilities:
Accounts payable	69,217	68,548
Accrued compensation	10,774	15,066
Accrued expenses and other current liabilities	40,112	47,242
Billings in excess of costs and estimated earnings on uncompleted contracts	27,731	24,158
Total current liabilities	147,834	155,014
Noncurrent liabilities:
Convertible notes, net	160,618	158,971
Long-term debt	12	15
Other	47,267	45,951
Total noncurrent liabilities	207,897	204,937
Equity:
Common stock, par value $.01 per share, 60,000 shares authorized, 19,805 and 19,789 shares issued and outstanding, respectively	198	198
Capital in excess of par value	367,711	365,619
Accumulated deficit	(230,697)	(216,584)
Accumulated other comprehensive loss	(18,634)	(20,575)
Total Layne Christensen Company equity	118,578	128,658
Noncontrolling interests	48	48
Total equity	118,626	128,706
Total liabilities and equity	$ 474,357	$ 488,657

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016
Statement Of Financial Position [Abstract]
Customer receivables, allowance	$ 3,910	$ 3,494
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	19,805,000	19,789,000
Common stock, shares outstanding	19,805,000	19,789,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Income Statement [Abstract]
Revenues	$ 159,049	$ 176,317	$ 318,788	$ 350,588
Cost of revenues (exclusive of depreciation, amortization, and impairment charges shown below)	(130,354)	(151,249)	(260,723)	(294,480)
Selling, general and administrative expenses (exclusive of depreciation, amortization, and impairment charges shown below)	(23,224)	(28,829)	(50,474)	(58,075)
Depreciation and amortization	(6,954)	(8,254)	(13,382)	(16,989)
Impairment charges		(4,598)		(4,598)
Restructuring costs	(1,005)	(4,361)	(1,460)	(4,551)
Equity in earnings (losses) of affiliates	458	(1,486)	1,727	(1,593)
Gain on extinguishment of debt				4,236
Interest expense	(4,209)	(4,295)	(8,455)	(8,147)
Other income, net	188	252	338	1,293
Loss from continuing operations before income taxes	(6,051)	(26,503)	(13,641)	(32,316)
Income tax benefit (expense)	741	2,993	(472)	2,232
Net loss from continuing operations	(5,310)	(23,510)	(14,113)	(30,084)
Net income from discontinued operations		5,356		5,372
Net loss	$ (5,310)	$ (18,154)	$ (14,113)	$ (24,712)
Earnings (loss) per share information:
Loss per share from continuing operations - basic and diluted	$ (0.26)	$ (1.19)	$ (0.71)	$ (1.53)
Earnings per share from discontinued operations - basic and diluted		0.26		0.27
Loss per share - basic and diluted	$ (0.26)	$ (0.93)	$ (0.71)	$ (1.26)
Weighted average shares outstanding - basic and dilutive	19,790	19,744	19,782	19,690

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (5,310)	$ (18,154)	$ (14,113)	$ (24,712)
Other comprehensive income (loss):
Foreign currency translation adjustments (net of taxes of $0.1 million and $0.0 million for 2016 and 2015, respectively)	392	(465)	1,941	(2,108)
Other comprehensive income (loss)	392	(465)	1,941	(2,108)
Comprehensive loss	$ (4,918)	$ (18,619)	$ (12,172)	$ (26,820)

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Foreign currency translation adjustments, tax	$ 0.1	$ 0	$ 0.1	$ 0

CONDENSED CONSOLIDATED STATEME7

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - 6 months ended Jul. 31, 2016 - USD ($) $ in Thousands	Total	Common Stock	Capital In Excess of Par Value	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income	Total Layne Christensen Company Equity	Noncontrolling Interest
Beginning balance at Jan. 31, 2016	$ 128,706	$ 198	$ 365,619	$ (216,584)	$ (20,575)	$ 128,658	$ 48
Beginning balance (in shares) at Jan. 31, 2016		19,789,000
Net loss	(14,113)			(14,113)		(14,113)
Other comprehensive income	$ 1,941				1,941	1,941
Issuance of nonvested shares (in shares)	0	14,000
Issuance of common stock for vested restricted stock units (in shares)		2,000
Equity-based compensation	$ 2,092		2,092			2,092
Ending balance at Jul. 31, 2016	$ 118,626	$ 198	$ 367,711	$ (230,697)	$ (18,634)	$ 118,578	$ 48
Ending balance (in shares) at Jul. 31, 2016		19,805,000

CONDENSED CONSOLIDATED STATEME8

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOW (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Cash flow from operating activities:
Net loss	$ (14,113)	$ (24,712)
Adjustments to reconcile net loss to cash flow from operating activities:
Depreciation and amortization	13,382	20,228
Bad debt expense	1,334	269
Amortization of discount and deferred financing costs	2,072	2,119
Gain on extinguishment of debt		(4,236)
Deferred income taxes	(28)	(3,378)
Equity-based compensation	2,092	2,397
Equity in earnings of affiliates	(1,727)	685
Dividends received from affiliates	2,438	2,926
Restructuring costs	1,460	3,245
Write-down of inventory		7,563
Impairment charges		4,598
Gain from disposal of property and equipment	(253)	(950)
Changes in current assets and liabilities:
Customer receivables	(1,418)	2,775
Costs and estimated earnings in excess of billings on uncompleted contracts	(514)	(3,203)
Inventories	835	1,735
Other current assets	356	3,168
Accounts payable and accrued expenses	(8,851)	(15,171)
Billings in excess of costs and estimated earnings on uncompleted contracts	3,573	(6,171)
Other, net	(1,490)	2,983
Cash used in operating activities	(2,312)	(3,130)
Cash flow from investing activities:
Additions to property and equipment	(7,731)	(9,693)
Proceeds from disposal of property and equipment	1,484	5,882
Release of cash from restricted accounts	1,944	677
Cash used in investing activities	(4,303)	(3,134)
Cash flow from financing activities:
Repayments under revolving loan facilities		(22,039)
Proceeds from 8.0% convertible notes		49,950
Payment of debt issuance costs	(8)	(5,268)
Principal payments under capital lease obligation	(60)	(101)
Purchases and retirement of treasury stock		(342)
Cash (used in) provided by financing activities	(68)	22,200
Effects of exchange rate changes on cash	55	546
Net (decrease) increase in cash and cash equivalents	(6,628)	16,482
Cash and cash equivalents at beginning of period	65,569	21,661
Cash and cash equivalents at end of period	$ 58,941	$ 38,143

Accounting Policies and Basis o

Accounting Policies and Basis of Presentation	6 Months Ended
	Jul. 31, 2016
Accounting Policies [Abstract]
Accounting Policies and Basis of Presentation	1. Accounting Policies and Basis of Presentation Description of Business —Layne Christensen Company (together with its subsidiaries “Layne,” the “Company,” “we,” “our,” or “us”) is a global water management, construction and drilling company. We primarily operate in North America and South America. During the fiscal year ended January 31, 2016, we implemented a plan to exit our operations in Africa and Australia. Our customers include government agencies, investor-owned water utilities, industrial companies, global mining companies, consulting and engineering firms, heavy civil construction contractors, oil and gas companies and agribusinesses. We have an ownership interest in certain foreign affiliates operating in Latin America. Fiscal Year – Our fiscal year end is January 31. References to fiscal years (in the form of “FY2017,” etc.) are to the twelve months ended on January 31 of that year. Investment in Affiliated Companies – Investments in affiliates in which we have the ability to exercise significant influence, but do not hold a controlling interest over operating and financial policies, are accounted for by the equity method. We evaluate our equity method investments for impairment when events or changes in circumstances indicate there is a loss in value of the investment that is other than a temporary decline. During the three months ended July 31, 2016, due to the continued softness in minerals pricing and the extended downturn in the minerals market, we extended our review of our equity method investments for impairment. Based on such analysis, no indication of impairment existed as of July 31, 2016. Principles of Consolidation – The Condensed Consolidated Financial Statements include our accounts and the accounts of all of our subsidiaries where we exercise control. For investments in subsidiaries that are not wholly-owned, but where we exercise control, the equity held by the minority owners and their portions of net income (loss) are reflected as noncontrolling interests. All intercompany accounts and transactions have been eliminated in consolidation. Presentation— The unaudited Condensed Consolidated Financial Statements included herein have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America (“U.S.”) and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial information. Accordingly, certain information and disclosures normally included in our annual financial statements have been condensed or omitted. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with our consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended January 31, 2016 (“Annual Report”). We believe the unaudited Condensed Consolidated Financial Statements included herein reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the interim periods. The results of operations for the interim periods are not necessarily indicative of the results of operations to be expected for the full year. In the Notes to Condensed Consolidated Financial Statements, all dollar amounts in tabulations are in thousands of dollars, unless otherwise indicated. Beginning with the first quarter of FY2017, we are excluding nonvested restricted stock units (“RSU”) from the total shares issued and outstanding in our Condensed Consolidated Balance Sheets, since no shares are actually issued until the shares have vested and are no longer restricted. Once the restriction lapses on RSUs, the units are converted to unrestricted shares of our common stock and the par value of the stock is reclassified from additional paid-in-capital to common stock. RSU shares in prior periods have been reclassified to conform with this presentation. As discussed further in Note 10 to the Condensed Consolidated Financial Statements, during the third quarter of FY2016, we completed the sale of our Geoconstruction business segment. The results of operations related to the Geoconstruction business segment have been classified as discontinued operations for all periods presented. Unless noted otherwise, discussion in these Notes to Condensed Consolidated Financial Statements pertain to continuing operations. Business Segments – We report our financial results under four reporting segments consisting of Water Resources, Inliner, Heavy Civil and Mineral Services. In the first quarter of FY2017, changes were made for certain of our smaller operations to reflect changes in organizational accountabilities as part of our strategy to simplify our business and streamline our operating and reporting structure. Our Collector Wells group was shifted from Heavy Civil to Water Resources to better align their operational expertise. We also shifted certain other smaller operations out of our “Other” segment and into our four reporting segments, and are no longer reporting the “Other” segment. Information for prior periods has been recast to conform to our new presentation. We also report corporate activities under the title “Unallocated Corporate.” Unallocated corporate expenses primarily consist of general and administrative functions performed on a company-wide basis and benefiting all segments. These costs include accounting, financial reporting, internal audit, treasury, legal, tax compliance, executive management and board of directors. Corporate assets include all assets not directly associated with a segment, and consist primarily of cash and deferred income taxes. Use of and Changes in Estimates – The preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Estimates and assumptions about future events and their effects cannot be perceived with certainty, and accordingly, these estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as our operating environment changes. While we believe that the estimates and assumptions used in the preparation of the Condensed Consolidated Financial Statements are appropriate, actual results could differ from those estimates. Foreign Currency Transactions and Translation – In accordance with Accounting Standards Codification (“ASC”) Topic 830, “Foreign Currency Matters,” gains and losses resulting from foreign currency transactions are included in the Condensed Consolidated Statements of Operations. Assets and liabilities of non-U.S. subsidiaries whose functional currency is the local currency are translated into U.S. dollars at exchange rates prevailing at the balance sheet date. The net foreign currency exchange differences resulting from these translations are reported in accumulated other comprehensive income (loss). Revenues and expenses are translated at average foreign currency exchange rates during the reporting period. The cash flows and financing activities of our operations in Mexico are primarily denominated in U.S. dollars. Accordingly, these operations use the U.S. dollar as their functional currency. Monetary assets and liabilities are remeasured at period end foreign currency exchange rates and nonmonetary items are measured at historical foreign currency exchange rates with exchange rate differences reported in the statement of operations. Net foreign currency transaction losses were $(0.1) million for the three and six months ended July 31, 2016, and $0.1 million and less than $(0.1) million for the three and six months ended July 31, 2015, respectively, and are recorded in other income (expense), net in the accompanying Condensed Consolidated Statements of Operations. Revenue Recognition — Revenues are recognized on large, long-term construction contracts meeting the criteria of ASC Topic 605-35 “Construction-Type and Production-Type Contracts” (“ASC Topic 605-35”), using the percentage-of-completion method based upon the ratio of costs incurred to total estimated costs at completion. Contract price and cost estimates are reviewed periodically as work progresses and adjustments proportionate to the percentage of completion are reflected in contract revenues in the reporting period when such estimates are revised. The nature of accounting for construction contracts using the percentage-of-completion method is such that refinements of the estimating process for changing conditions and new developments may occur and are characteristic of the process. Many factors can and do change during a contract performance period which can result in a change to contract profitability including differing site conditions (to the extent that contract remedies are unavailable), the availability of skilled contract labor, the performance of major material suppliers, the performance of major subcontractors, unusual weather conditions and unexpected changes in material costs. These factors may result in revisions to costs and income and are recognized in the period in which the revisions become known. When the estimate on a contract indicates a loss, the entire loss is recorded during the accounting period in which the facts that caused the revision become known. Management evaluates the performance of contracts on an individual basis. In the ordinary course of business, but at least quarterly, we prepare updated estimates of cost and profit or loss for each contract. The cumulative effect of revisions in estimates of the total forecasted revenue and costs, including unapproved change orders and claims, during the course of the contract is reflected in the accounting period in which the facts that caused the revision become known. Large changes in cost estimates on larger, more complex construction projects can have a material impact on our financial statements and are reflected in results of operations when they become known. We record revenue on contracts relating to unapproved change orders and claims by including in revenue an amount less than or equal to the amount of the costs incurred by us to date for contract price adjustments that we seek to collect from customers for delays, errors in specifications or designs, change orders in dispute or unapproved as to scope or price, or other unanticipated additional costs, in each case when recovery of the costs is considered probable. The amount of unapproved change orders and claims revenues are included in our Condensed Consolidated Balance Sheets as part of costs and estimated earnings in excess of billings on uncompleted contracts. When determining the likelihood of eventual recovery, we consider such factors as our experience on similar projects and our experience with the customer. As new facts become known, an adjustment to the estimated recovery is made and reflected in the current period. As allowed by ASC Topic 605-35, revenue is recognized on smaller, short-term construction contracts using the completed contract method. Provisions for estimated losses on uncompleted construction contracts are made in the period in which such losses become known. We determine when short-term construction contracts are completed based on acceptance by the customer. Revenues for drilling contracts within Mineral Services are recognized in terms of the value of total work performed to date on the basis of actual footage or meterage drilled. Revenues for direct sales of equipment and other ancillary products not provided in conjunction with the performance of construction contracts are recognized at the date of delivery to, and acceptance by, the customer. Provisions for estimated warranty obligations are made in the period in which the sales occur. Our revenues are presented net of taxes imposed on revenue-producing transactions with our customers, such as, but not limited to, sales, use, value-added and some excise taxes. Inventories— We value inventories at the lower of cost or market. Cost of U.S. inventories and the majority of foreign operations are determined using the average cost method, which approximates FIFO. Inventories consist primarily of supplies and raw materials. Supplies of $19.0 million and $16.8 million and raw materials of $2.4 million and $2.7 million were included in inventories in the Condensed Consolidated Balance Sheets as of July 31, 2016 and January 31, 2016, respectively. Goodwill —In accordance with ASC Topic 350-20, “Intangibles – Goodwill and Other,” we are required to test for the impairment of goodwill on at least an annual basis. We conduct this evaluation annually or more frequently if events or changes in circumstances indicate that goodwill might be impaired. We believe at this time that the carrying value of the remaining goodwill is appropriate, although to the extent additional information arises or our strategies change, it is possible that our conclusions regarding impairment of the remaining goodwill could change and result in a material effect on our financial position and results of operations. As of July 31, 2016 and January 31, 2016, we had $8.9 million of goodwill, included as part of Other Assets in the Condensed Consolidated Balance Sheets. The goodwill is all attributable to the Inliner reporting segment. Other Long-lived Assets —Long-lived assets, including amortizable intangible assets, are reviewed for recoverability whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Factors we consider important which could trigger an impairment review include but are not limited to the following: — significant underperformance of assets; — significant changes in the use of the assets; and — significant negative industry or economic trends. During the three months ended July 31, 2016, due to the ongoing softness in global commodity prices, and decreased activity levels compared to prior year, we reviewed the recoverability of the asset values of our long-lived assets in the Heavy Civil and Mineral Services segments. No impairments were indicated by such analyses as of July 31, 2016. Cash and Cash Equivalents —We consider investments with an original maturity of three months or less when purchased to be cash equivalents. Our cash equivalents are subject to potential credit risk. Our cash management and investment policies restrict investments to investment grade, highly liquid securities. The carrying value of cash and cash equivalents approximates fair value. Restricted Deposits – Restricted deposits consist of amounts associated with certain letters of credit for on-going projects, escrow funds related to a certain disposition, and judicial deposits associated with tax related legal proceedings in Brazil. Restricted deposits – current of $1.5 million and $3.5 million as of July 31, 2016 and January 31, 2016, respectively, are included in Other Current Assets in the Condensed Consolidated Balance Sheets. Restricted deposits – long term of $4.9 million and $4.3 million as of July 31, 2016 and January 31, 2016, respectively, are included in Other Assets in the Condensed Consolidated Balance Sheets. Allowance for Uncollectible Accounts Receivable— We make ongoing estimates relating to the collectability of our accounts receivable and maintain an allowance for estimated losses resulting from the inability of our customers to make required payments. In determining the amount of the allowance, we make judgments about the creditworthiness of customers based on ongoing credit evaluations, and also consider a review of accounts receivable aging, industry trends, customer financial strength, credit standing and payment history to assess the probability of collection. Concentration of Credit Risk —We grant credit to our customers, which may include concentrations in state and local governments or other customers. Although this concentration could affect our overall exposure to credit risk, we believe that our portfolio of accounts receivable is sufficiently diversified, thus spreading the credit risk. To manage this risk, we perform periodic credit evaluations of our customers’ financial condition, including monitoring our customers’ payment history and current credit worthiness. We do not generally require collateral in support of our trade receivables, but may require payment in advance or security in the form of a letter of credit or bank guarantee. Fair Value of Financial Instruments —The carrying amounts of financial instruments, including cash and cash equivalents, customer receivables and accounts payable, approximate fair value at July 31, 2016 and January 31, 2016, because of the relatively short maturity of those instruments. See Note 6 to the Condensed Consolidated Financial Statements for other fair value disclosures. Litigation and Other Contingencies —We are involved in litigation incidental to our business, the disposition of which is not expected to have a material effect on our business, financial position, results of operations or cash flows. In addition, some of our contracts contain provisions that require payment of liquidated damages if we are responsible for the failure to meet specified contractual milestone dates and the applicable customer asserts a claim under these provisions. These contracts define the conditions under which our customers may make claims against us for liquidated damages. In many cases in which we have historically had potential exposure for liquidated damages, such damages ultimately were not asserted by our customers. It is possible, however, that future results of operations for any particular quarterly or annual period could be materially affected by changes in our assumptions related to these proceedings. If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability is accrued in our Condensed Consolidated Financial Statements. If the assessment indicates that a potentially material loss contingency is not probable but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, and an estimate of the range of possible losses, if determinable and material, is disclosed. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Equity-based Compensation— We recognize the cost of all equity-based instruments in the Condensed Consolidated Financial Statements using a fair-value measurement of the associated costs. The fair value of service-based equity-based compensation granted in the form of stock options is determined using a lattice valuation model and for certain market-based awards the fair value is determined using a Monte Carlo simulation model. Unearned compensation expense associated with the issuance of nonvested shares is amortized on a straight-line basis as the restrictions on the shares expire, subject to achievement of certain contingencies. Income (loss) Per Share —Income (loss) per share is computed by dividing net income (loss) available to common shareholders by the weighted average number of common shares outstanding during the period. For periods in which we recognize losses, the calculation of diluted loss per share is the same as the calculation of basic loss per share. For periods in which we recognize net income, diluted earnings per common share is computed in the same way as basic earnings per common share except that the denominator is increased to include the number of additional common shares that would be outstanding if all potential common shares had been issued that were dilutive. Options to purchase common stock and nonvested shares are included based on the treasury stock method for dilutive earnings per share, except when their effect is antidilutive. The 4.25% Convertible Notes and the 8.0% Convertible Notes (see Note 3 to the Condensed Consolidated Financial Statements) are included in the calculation of diluted loss per share if their inclusion is dilutive under the if-converted method. Options to purchase 0.9 million shares have been excluded from weighted average shares in the three and six months ended July 31, 2016, respectively, as their effect was antidilutive. A total of 1.9 million nonvested shares have been excluded from weighted average shares in the three and six months ended July 31, 2016, as their effect was antidilutive. Options to purchase a total 1.1 million shares have been excluded from weighted average shares in the three and six months ended July 31, 2015, as their effect was antidilutive. A total of 1.5 million nonvested shares have been excluded from weighted average shares in the three and six months ended July 31, 2015, respectively, as their effect was antidilutive. Supplemental Cash Flow Information —The amounts paid for income taxes, interest and noncash investing and financing activities were as follows: Six Months Ended July 31, (in thousands) 2016 2015 Income taxes paid $ 514 $ 1,109 Income tax refunds (171 ) (3,976 ) Interest paid 6,086 4,683 Noncash investing and financing activities: Exchange of 4.25% convertible notes for 8.0% convertible notes — 55,500 Accrued capital additions 2,772 1,442 New Accounting Pronouncements— In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses,” which requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASU 2016-13 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for fiscal years, and interim periods within those years, beginning after December 15, 2018. Accordingly, the standard is effective for us on February 1, 2020 using a modified retrospective approach. We are currently evaluating the impact of the adoption of this ASU and do not believe the effect will be material on our financial statements. In March 2016, the FASB issued ASU 2016-09, “Stock Compensation,” which simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods, and early adoption is permitted In March 2016, the FASB issued ASU No. 2016-06, “Derivatives and Hedging: Contingent Put and Call Options in Debt Instruments,” to clarify the steps required to assess whether a call or put option meets the criteria for bifurcation as an embedded derivative. ASU 2016-06 is effective for interim and annual periods beginning after December 15, 2016, and requires a modified retrospective approach to adoption. Early adoption is permitted. We are currently evaluating the impact of the adoption of this ASU and do not believe the effect will be material on our financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases,” which establishes a right-of-use (ROU) model that requires a lessee to record an ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. ASU 2016-02 requires modified retrospective adoption for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. We are currently evaluating the effect of adoption of this ASU and do not believe the effect will be material on our financial statements. On July 22, 2015, the FASB issued ASU On February 18, 2015, FASB issued ASU 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis.” This guidance which is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015, changes the consolidation analysis required under U.S. GAAP for limited partnerships and other variable interest entities (“VIE”). The adoption of this ASU did not have a material impact on our financial statements. The FASB issued ASU 2014-09, “Revenue from Contracts with Customers” on May 28, 2014. On August 12, 2015, the FASB issued ASU 2015-14, which defers the adoption of ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. This guidance defines the steps to recognize revenue for entities that have contracts with customers as well as requiring significantly expanded disclosures regarding the qualitative and quantitative information of the nature, amount, timing, and uncertainty of revenue and cash flows arising from such contracts. This guidance provides companies with a choice of applying it retrospectively to each reporting period presented or by recognizing the cumulative effect of applying it at the date of initial application (February 1, 2018 in our case) and not adjusting comparative information. In March 2016, the FASB issued ASU 2016-08, Principal versus Agent Considerations, which clarifies the implementation guidance on principal versus agent considerations in the new revenue recognition standard pursuant to ASU 2014-09. In April 2016, the FASB issued ASU 2016-10, Identifying Performance Obligations and Licensing, and in May 2016, the FASB issued ASU 2016-12, Narrow-Scope Improvements and Practical Expedients, which amend certain aspects of the new revenue recognition standard pursuant to ASU 2014-09. At this point, we are currently evaluating the requirements and impact the provisions of the standard will have on our financial statements.

Property and Equipment

Property and Equipment	6 Months Ended
	Jul. 31, 2016
Property Plant And Equipment [Abstract]
Property and Equipment	2. Property and Equipment Property and equipment consisted of the following: July 31, January 31, 2016 2016 Land $ 13,613 $ 13,474 Buildings 36,263 36,175 Machinery and equipment 364,027 375,698 Property and equipment, at cost 413,903 425,347 Less - Accumulated depreciation (304,554 ) (311,850 ) Property and equipment, net $ 109,349 $ 113,497

Indebtedness

Indebtedness	6 Months Ended
	Jul. 31, 2016
Debt Disclosure [Abstract]
Indebtedness	3. Indebtedness Debt outstanding as of July 31, 2016, and January 31, 2016, was as follows: July 31, January 31, (in thousands) 2016 2016 4.25% Convertible Notes $ 63,048 $ 61,766 8.0% Convertible Notes 97,570 97,205 Capitalized lease obligations 22 106 Less amounts representing interest (1 ) (3 ) Total debt 160,639 159,074 Less current maturities of long-term debt (9 ) (88 ) Total long-term debt $ 160,630 $ 158,986 On March 2, 2015, we exchanged approximately $55.5 million aggregate principal amount of our 4.25% Convertible Notes for approximately $49.9 million aggregate principal amount of our 8.0% Convertible Notes. In accordance with the derecognition guidance for convertible instruments in an exchange transaction under ASC Topic 470-20, the fair value of the 8.0% Convertible Notes (“the exchange consideration”) and the transaction costs incurred were allocated between the liability and equity components of the 4.25% Convertible Notes. Of the $49.9 million exchange consideration, $42.1 million, which represented the fair value of the 4.25% Convertible Notes immediately prior to its derecognition, was allocated to the extinguishment of the liability component. Transaction costs of $0.9 million were also allocated to the liability component. As a result, we recognized a gain on extinguishment of debt of $4.2 million during the first quarter of FY2016. The remaining $7.8 million of the exchange consideration and $0.2 million of transaction costs were allocated to the reacquisition of the equity component and recognized as a reduction of stockholders’ equity. The following table presents the carrying value of the Convertible Notes as of July 31, 2016: July 31, January 31, (in thousands) 2016 2016 4.25% Convertible Notes: Carrying amount of the equity conversion component $ 3,106 $ 3,106 Principal amount of the 4.25% Convertible Notes $ 69,500 $ 69,500 Unamortized deferred financing fees (1,286 ) (1,523 ) Unamortized debt discount (1) (5,166 ) (6,211 ) Net carrying amount $ 63,048 $ 61,766 8.0% Convertible Notes: Principal amount of the 8.0% Convertible Notes $ 99,898 $ 99,898 Unamortized deferred financing fees (2,328 ) (2,693 ) Net carrying amount $ 97,570 $ 97,205 (1) As of July 31, 2016, the remaining period over which the unamortized debt discount will be amortized is 27 months using an effective interest rate of 9.0%. We utilize surety bonds to secure performance of our projects. As of July 31, 2016 and January 31, 2016, the amount of surety bonds was $206.1 million and $259.7 million, respectively, as measured by the expected amount of contract revenue remaining to be recognized on the projects.

Other Income, Net

Other Income, Net	6 Months Ended
	Jul. 31, 2016
Other Income And Expenses [Abstract]
Other Income, Net	4. Other Income, Net Other income, net consisted of the following for the three and six months ended July 31, 2016 and 2015: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2016 2015 2016 2015 Net gain from disposal of property and equipment $ 108 $ 210 $ 253 $ 969 Interest income 15 114 63 386 Currency exchange gain (losses) (62 ) 111 (146 ) (48 ) Other 127 (183 ) 168 (14 ) Total $ 188 $ 252 $ 338 $ 1,293

Income Taxes

Income Taxes	6 Months Ended
	Jul. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	5. Income Taxes Income tax benefit (expense) for continuing operations of $0.7 million and $(0.5) million were recorded in the three and six months ended July 31, 2016, compared to $3.0 million and $2.2 million for the same periods last year. We recorded no tax benefit on domestic deferred tax assets and certain foreign deferred tax assets generated during the three and six months ended July 31, 2016 and 2015. The effective tax rates for continuing operations for the three and six months ended July 31, 2016 were 12.2% and (3.5)%, compared to 11.3% and 6.9% for the same periods last year. The difference between the effective tax rates and the statutory tax rates resulted primarily from valuation allowances recorded during the respective periods on current year losses. After valuation allowances, we maintain no domestic net deferred tax assets and $0.8 million of deferred tax assets from various foreign jurisdictions where management believes that realization is more likely than not. In order for our foreign subsidiaries to fully realize the deferred tax asset, they will need to generate taxable income totaling $2.6 million in relation to where the deferred tax assets are recorded. We will continue to evaluate all of the evidence in future quarters and will make a determination as to whether it is more likely than not that deferred tax assets will be realized in future periods. The establishment of a valuation allowance does not have any impact on cash, nor does such an allowance preclude us from using our loss carryforwards or utilizing other deferred tax assets in the future. As of July 31, 2016, and January 31, 2016, the total amount of unrecognized tax benefits recorded was $10.2 million and $10.8 million, respectively, of which substantially all would affect the effective tax rate if recognized. It is reasonably possible that the amount of unrecognized tax benefits will decrease during the next twelve months by approximately $3.4 million due to settlements of audit issues. We classify uncertain tax positions as non-current income tax liabilities unless expected to be paid within one year. We report income tax-related interest and penalties as a component of income tax expense. As of July 31, 2016, and January 31, 2016, the total amount of liability for income tax-related interest and penalties was $8.0 million and $7.8 million, respectively.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jul. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	6. Fair Value Measurements Our estimates of fair value for financial assets and financial liabilities are based on the framework established in the fair value accounting guidance. The framework is based on the inputs used in the valuation, gives the highest priority to quoted prices in active markets and requires that observable inputs be used in the valuations when available. The three levels of inputs used to measure fair value are listed below: Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 — Observable inputs other than those included in Level 1, such as quoted market prices for similar assets and liabilities in active markets or quoted prices for identical assets in inactive markets. Level 3 — Unobservable inputs reflecting our own assumptions and best estimate of what inputs market participants would use in pricing an asset or liability. Our assessment of the significance of a particular input to the fair value in its entirety requires judgment and considers factors specific to the asset or liability. Our financial instruments held at fair value are presented below as of July 31, 2016, and January 31, 2016: Fair Value Measurements (in thousands) Carrying Value Level 1 Level 2 Level 3 July 31, 2016 Financial Assets: Current restricted deposits held at fair value (1) $ 1,521 $ 1,521 — — Long term restricted deposits held at fair value (1) 4,900 4,900 — — Contingent consideration receivable (2) 4,244 — — $ 4,244 January 31, 2016 Financial Assets: Current restricted deposits held at fair value (1) $ 3,466 $ 3,466 — — Long term restricted deposits held at fair value (1) 4,252 4,252 — — Contingent consideration receivable (2) 4,244 — — $ 4,244 (1) Current restricted deposits are included in Other Current Asset in the Condensed Consolidated Balance Sheets. Long-term restricted deposits are included in Other Assets in the Condensed Consolidated Balance Sheets. (2) As discussed in Note 10 to the Condensed Consolidated Financial Statements, the contingent consideration receivable represents our share in the profits of one of the contracts assumed by the purchaser, as part of the sale of the Geoconstruction business on August 17, 2015. The amount was estimated based on the projected profits of the contract. There have been no changes in the estimated fair value since the closing date of the sale agreement. Other Financial Instruments We use the following methods and assumptions in estimating the fair value disclosures for our other financial instruments: Cash – The carrying amounts reported in the accompanying Condensed Consolidated Balance Sheets for cash approximate their fair values and are classified as Level 1 within the fair value hierarchy. Short-term and long-term debt, other than the Convertible Notes – The fair value of debt instruments is classified as Level 2 within the fair value hierarchy and is valued using a market approach based on quoted prices for similar instruments traded in active markets. Where quoted prices are not available, the income approach is used to value these instruments based on the present value of future cash flows discounted at estimated borrowing rates for similar debt instruments or on estimated prices based on current yields for debt issues of similar quality and terms. Convertible Notes – The Convertible Notes are measured using Level 1 inputs based upon observable quoted prices of the 4.25% Convertible Notes and the 8.0% Convertible Notes. The following table summarized the carrying values and estimated fair values of the long-term debt: July 31, 2016 January 31, 2016 (in thousands) Carrying Value Fair Value Carrying Value Fair Value 4.25% Convertible Notes $ 63,048 $ 61,077 $ 61,766 $ 49,873 8.0% Convertible Notes 97,570 92,156 97,205 92,156

Equity-Based Compensation

Equity-Based Compensation	6 Months Ended
	Jul. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Equity-Based Compensation	7. Equity-Based Compensation We have equity-based compensation plans for Directors and certain employees that provide for the granting of options to purchase or the issuance of shares of common stock at a price fixed by the Board of Directors. As of July 31, 2016, there were 86,479 shares which remained available to be granted under the plans. We have the ability to issue shares under the plans either from new issuances or from treasury, although we have previously always issued new shares and expect to continue to issue new shares in the future. We granted 13,495 shares of restricted stock, 199,352 restricted stock units and 447,903 performance vesting restricted stock units under the Layne Christensen Company 2006 Equity Incentive Plan during the six months ended July 31, 2016. The grants consist of both service-based awards and market-based awards. We also granted a total of 134,433 stock options during the six months ended July 31, 2016 under the Layne Christensen Company 2006 Equity Incentive Plan. We recognized compensation cost for equity-based compensation arrangements of $0.8 million and $2.1 million for the three and six months ended July 31, 2016, respectively, and $0.7 million and $2.4 million for the three and six months ended July 31, 2015, respectively. The total income tax benefit recognized for equity-based compensation arrangements were $0.3 million and $0.8 million for the three and six months ended July 31, 2016, respectively, and $0.3 million and $0.9 million for the three and six months ended July 31, 2015, respectively. As of July 31, 2016, no tax benefit is expected to be realized for equity-based compensation arrangements due to a full valuation allowance of our domestic deferred tax assets. As of July 31, 2016, total unrecognized compensation cost related to unvested stock options was approximately $0.3 million, which is expected to be recognized over a weighted-average period of 1.3 years. As of July 31, 2016, there was approximately $5.3 million of total unrecognized compensation cost related to nonvested restricted stock awards and restricted stock units that is expected to be recognized over a weighted-average period of 1.9 years. A summary of nonvested share activity for the six months ended July 31, 2016, is as follows: Number of Shares Weighted Average Grant Date Fair Value Intrinsic Value (in thousands) Nonvested stock at February 1, 2016 1,407,170 $ 5.20 $ 7,205 Granted - Director's restricted stock 13,495 7.04 Granted - Restricted stock units 199,352 7.04 Granted - Performance vesting shares 447,903 4.70 Vested (26,349 ) 6.22 Forfeitures (94,368 ) 10.79 Nonvested stock at July 31, 2016 1,947,203 $ 5.00 $ 15,578 A summary of stock option activity for the six months ended July 31, 2016, is as follows: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Intrinsic Value (in thousands) Outstanding at February 1, 2016 839,715 $ 17.61 7.1 $ — Granted 134,433 7.04 Expired (10,000 ) 29.29 Forfeited (27,157 ) 23.20 Outstanding at July 31, 2016 936,991 $ 15.81 6.9 $ 399 Exercisable at February 1, 2016 576,871 $ 19.00 6.5 Exercisable at July 31, 2016 771,869 $ 16.80 6.7 $ 399 The aggregate intrinsic value was calculated using the difference between the current market price and the exercise price for only those options that have an exercise price less than the current market price. The fair value of equity-based compensation granted in the form of stock options is determined using a lattice valuation model. The valuations were made using the assumptions noted in the following table. Expected volatilities are based on historical volatility of the stock price. We use historical data to estimate early exercise and post-vesting forfeiture rates to be applied within the valuation model. The risk-free interest rate for the periods within the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The weighted-average fair value per share at the date of grant for options granted during the six months ended July 31, 2016 was $1.59. Assumptions: 2016 Weighted-average expected volatility 56.1% Expected dividend yield 0.0% Risk-free interest rate 0.6% Expected term (in years) 1.9 Exercise multiple factor 1.4 Post-vesting forfeiture 20.3% Nonvested stock awards having service requirements only, are valued as of the grant date closing stock price and generally vest ratably over service periods of one to five years. Other nonvested stock awards vest based upon Layne meeting various performance goals. Certain nonvested stock awards provide for accelerated vesting if there is a change of control (as defined in the plans) or the disability or the death of the executive and for equitable adjustment in the event of changes in our equity structure. We granted certain performance based nonvested stock awards during the six months ended July 31, 2016, which were valued using a Monte Carlo simulation model. Assumptions used in the Monte Carlo simulation model for the six months ended July 31, 2016 were as follows: Assumptions: 2016 Weighted-average fair value 4.7% Weighted-average expected volatility 58.3% Expected dividend yield 0.0% Weighted-average risk free rate 0.9%

Investment in Affiliates

Investment in Affiliates	6 Months Ended
	Jul. 31, 2016
Equity Method Investments And Joint Ventures [Abstract]
Investment in Affiliates	8. Investment in Affiliates We have investments in affiliates that are engaged in mineral drilling services, and the manufacture and supply of drilling equipment, parts and supplies. Investment in affiliates may include other construction joint ventures from time to time. A summary of material, jointly-owned affiliates, as well as their primary operating subsidiaries, if applicable, and the percentages directly and indirectly owned by us are as follows as of July 31, 2016: Percentage Owned Directly Percentage Owned Indirectly Boyles Bros Servicios Tecnicos Geologicos S. A. (Panama) 50.00 % Boytec, S.A. (Panama) 50.00 % Boytec Sondajes de Mexico, S.A. de C.V. (Mexico) 50.00 Sondajes Colombia, S.A. (Columbia) 50.00 Mining Drilling Fluids (Panama) 25.00 Plantel Industrial S.A. (Chile) 50.00 Christensen Chile, S.A. (Chile) 50.00 Christensen Commercial, S.A. (Chile) 50.00 Geotec Boyles Bros., S.A. (Chile) 50.00 Centro Internacional de Formacion S.A. (Chile) 50.00 Geoestrella S.A. (Chile) 25.00 Diamantina Christensen Trading (Panama) 42.69 Christensen Commercial, S.A. (Peru) 35.38 Geotec, S.A. (Peru) 35.38 Boyles Bros., Diamantina, S.A. (Peru) 29.49 Financial information of the affiliates is reported with a one-month lag in the reporting period. The impacts of the lag on our investment and results of operations are not significant. Summarized financial information of the affiliates was as follows: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2016 2015 2016 2015 Income statement data: Revenues $ 30,018 $ 33,813 $ 59,907 $ 70,136 Gross profit 5,596 4,349 11,533 9,663 Operating income 1,900 690 4,278 1,869 Net income (loss) 1,004 (2,854 ) 3,527 (3,090 )

Operating Segments

Operating Segments	6 Months Ended
	Jul. 31, 2016
Segment Reporting [Abstract]
Operating Segments	9. Operating Segments We are a global solutions provider to the world of essential natural resources – water, minerals and energy. Management defines our operational organizational structure into discrete segments based on our primary product lines. In the first quarter of FY2017, changes were made for certain of our smaller operations to reflect changes in organizational accountabilities as part of our strategy to simplify our business and streamline our operating and reporting structure. Our Collector Wells group was shifted from Heavy Civil to Water Resources to better align their operational expertise. We also shifted certain other smaller operations out of our “Other” segment and into our four reporting segments, and are no longer reporting the “Other” segment. We believe these changes better reflect how the business is managed and performance is evaluated. Information for prior periods has been reclassified to conform to our new presentation. We manage and report our operations through four segments: Water Resources, Inliner, Heavy Civil, and Mineral Services. Our segments are defined as follows: Water Resources Water Resources provides its customers with an array of water management solutions, including discovery and defining of water sources through hydrologic studies, water supply development through water well drilling and intake construction, and water delivery through pipeline and pumping infrastructure. Water Resources also brings technologies to the water and wastewater markets and offers water treatment equipment engineering services, providing systems for the treatment of regulated and nuisance contaminants, specifically, iron, manganese, hydrogen sulfide, arsenic, radium, nitrate, perchlorate, and volatile organic compounds. Water Resources drills deep injection wells for industrial (primarily power) and municipal clients that need to dispose of wastewater associated with their processes. Water Resources also performs complete diagnostic and rehabilitation services for existing wells, pumps and related equipment, including conducting downhole closed circuit televideo inspections to investigate and resolve water well and pump performance problems. In addition, Water Resources constructs radial collector wells through its Ranney® Collector Wells technology, which is an alternative to conventional vertical wells and can be utilized to develop moderate to very high capacities of groundwater. Inliner Inliner provides a wide range of process, sanitary and storm water rehabilitation solutions to municipalities and industrial customers dealing with aging infrastructure needs. Inliner focuses on its proprietary Inliner ® Heavy Civil Heavy Civil performs design and build services of water and wastewater treatment plants, as well as pipeline installation, to government agencies and industrial clients. In addition, Heavy Civil builds surface water intakes, pumping stations, hard rock tunnels and marine construction services-all in support of the water infrastructure in the U.S. Beyond water solutions, Heavy Civil also designs and constructs biogas facilities (anaerobic digesters) for the purpose of generating and capturing methane gas, an emerging renewable energy resource. Heavy Civil provides services in most regions of the U.S. Mineral Services Mineral Services conducts primarily above ground drilling activities, including all phases of core drilling, reverse circulation, dual tube, hammer and rotary air-blast methods. Our service offerings include both exploratory and definitional drilling. Global mining companies engage Mineral Services to extract samples from sites that the mining companies analyze for mineral content before investing heavily in development to extract the minerals. Mineral Services helps its clients determine if minable mineral deposit is on the site, the economic viability of the mining site and the geological properties of the ground, which helps in the determination of mine planning. Mineral Services also offers its customers water management and soil stabilization expertise. Mine water management consists of vertical, large diameter wells for sourcing and dewatering; and horizontal drains for slope de-pressurization. The primary markets are in the western U.S., Mexico, and South America. As discussed in Note 12 to the Condensed Consolidated Financial Statements, during FY 2016, we implemented a plan to exit our operations in Africa and Australia. Mineral Services also has ownership interests in foreign affiliates operating in Latin America that form its primary presence in Chile and Peru. Financial information for our segments is presented below. Unallocated corporate expenses primarily consist of general and administrative functions performed on a company-wide basis and benefiting all segments. These costs include expenses related to accounting, financial reporting, internal audit, treasury, legal, tax compliance, executive management and board of directors. Management evaluates segment performance based primarily on revenues and Adjusted EBITDA. Adjusted EBITDA represents income or loss from continuing operations before interest, taxes, depreciation and amortization, non-cash equity-based compensation, equity in earnings or losses from affiliates, certain non-recurring items such as impairment charges, restructuring costs, gain on extinguishment of debt, and certain other gains or losses, plus dividends received from affiliates. Refer to further discussion on Non-GAAP Financial Measures Unallocated Three Months Ended July 31, 2016 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 56,471 $ 52,976 $ 35,414 $ 14,318 $ — $ (130 ) $ 159,049 (Loss) income from continuing operations before income taxes $ (2,238 ) $ 6,808 $ 103 $ 1,634 $ (8,149 ) $ (4,209 ) $ (6,051 ) Interest expense — — — — — 4,209 4,209 Depreciation expense and amortization 3,015 1,262 428 1,801 448 — 6,954 Non-cash equity-based compensation 105 43 37 45 615 — 845 Equity in (earnings) losses of affiliates — — — (458 ) — — (458 ) Restructuring costs 603 72 4 173 153 — 1,005 Other expense (income), net 280 (52 ) (154 ) (479 ) 217 — (188 ) Dividends received from affiliates — — — 1,347 — — 1,347 Adjusted EBITDA $ 1,765 $ 8,133 $ 418 $ 4,063 $ (6,716 ) $ — $ 7,663 Unallocated Three Months Ended July 31, 2015 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 60,599 $ 41,790 $ 48,546 $ 25,981 $ — $ (599 ) $ 176,317 (Loss) income from continuing operations before income taxes $ (962 ) $ 4,422 $ (1,178 ) $ (14,422 ) $ (10,068 ) $ (4,295 ) $ (26,503 ) Interest expense — — — — — 4,295 4,295 Depreciation expense and amortization 3,311 1,031 655 2,788 469 — 8,254 Non-cash equity-based compensation 80 46 5 45 527 — 703 Equity in (earnings) losses of affiliates — — — 1,486 — — 1,486 Impairment charges 4,598 — — — — — 4,598 Restructuring costs (45 ) (2 ) (10 ) 11,675 306 — 11,924 Other expense (income), net 269 (46 ) (179 ) (191 ) (105 ) — (252 ) Dividends received from affiliates — — — 847 — — 847 Adjusted EBITDA $ 7,251 $ 5,451 $ (707 ) $ 2,228 $ (8,871 ) $ — $ 5,352 Unallocated Six Months Ended July 31, 2016 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 118,421 $ 100,510 $ 74,507 $ 25,573 $ — $ (223 ) $ 318,788 (Loss) income from continuing operations before income taxes $ (1,938 ) $ 12,453 $ (679 ) $ 1,287 $ (16,309 ) $ (8,455 ) $ (13,641 ) Interest expense — — — — — 8,455 8,455 Depreciation expense and amortization 6,168 2,516 897 3,020 781 — 13,382 Non-cash equity-based compensation 309 294 74 94 1,321 — 2,092 Equity in (earnings) losses of affiliates — — — (1,727 ) — — (1,727 ) Restructuring costs 603 72 395 237 153 — 1,460 Other expense (income), net 720 16 (138 ) (1,235 ) 299 — (338 ) Dividends received from affiliates — — — 2,438 — — 2,438 Adjusted EBITDA $ 5,862 $ 15,351 $ 549 $ 4,114 $ (13,755 ) $ — $ 12,121 Unallocated Six Months Ended July 31, 2015 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 118,751 $ 89,810 $ 93,629 $ 49,505 $ — $ (1,107 ) $ 350,588 Income (loss) from continuing operations before income taxes $ 1,929 $ 9,664 $ (3,201 ) $ (16,974 ) $ (19,823 ) $ (3,911 ) $ (32,316 ) Interest expense — — — — — 8,147 8,147 Depreciation expense and amortization 6,761 2,028 1,350 5,889 961 — 16,989 Non-cash equity-based compensation 229 585 183 168 1,148 — 2,313 Equity in (earnings) losses of affiliates — — — 1,593 — — 1,593 Impairment charges 4,598 — — — — — 4,598 Restructuring costs 18 17 31 11,696 352 — 12,114 Gain on extinguishment of debt — — — — — (4,236 ) (4,236 ) Other (income) expense, net (167 ) (42 ) (540 ) (541 ) (3 ) — (1,293 ) Dividends received from affiliates — — — 2,210 — — 2,210 Adjusted EBITDA $ 13,368 $ 12,252 $ (2,177 ) $ 4,041 $ (17,365 ) $ — $ 10,119 The following table summarizes revenue for our continuing operations, by product line and by major geographic area, for the three and six months ended July 31, 2016 and 2015: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2016 2015 2016 2015 Product Line Information Water systems $ 49,394 $ 54,896 $ 104,872 $ 107,405 Water treatment technologies 3,152 2,417 7,421 6,127 Sewer rehabilitation 52,976 41,790 100,510 89,810 Water and wastewater plant construction 21,132 39,434 42,440 73,157 Pipeline construction 13,569 8,785 30,542 18,975 Environmental and specialty drilling 3,393 2,215 6,276 3,598 Exploration drilling 13,618 24,424 23,912 45,488 Other 1,815 2,356 2,815 6,028 Total revenues $ 159,049 $ 176,317 $ 318,788 $ 350,588 Geographic Information United States $ 152,228 $ 160,905 $ 306,268 $ 321,951 Africa/Australia — 3,872 152 7,962 South America 1,838 2,073 2,301 3,983 Mexico 4,966 8,806 9,966 15,467 Other foreign 17 661 101 1,225 Total revenues $ 159,049 $ 176,317 $ 318,788 $ 350,588

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jul. 31, 2016
Discontinued Operations And Disposal Groups [Abstract]
Discontinued Operations	10. Discontinued Operations On August 17, 2015, we completed the sale of the Geoconstruction business segment to a subsidiary of Keller Foundations, LLC, a member of Keller Group plc (“Keller”), for a total purchase price of $47.7 million. As of July 31, 2016, we have approximately $1.5 million held in an escrow account, which is included in Other Assets in the Condensed Consolidated Balance Sheet, to be paid to us at a later date upon the satisfaction of certain conditions. In addition, as of July 31, 2016, we have $4.2 million of contingent consideration receivable, included in Other Assets in the Condensed Consolidated Balance Sheet. The contingent consideration represents our best estimate of our share in the profits of one of the contracts assumed by Keller. The results of operations associated with the Geoconstruction business segment for the three and six months ended July 31, 2015 were as follows: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2015 2015 Revenue $ 22,860 $ 42,952 Cost of revenues (exclusive of depreciation and amortization, shown below) (13,710 ) (31,155 ) Selling, general and administrative expenses (exclusive of depreciation and amortization, shown below) (1,411 ) (3,018 ) Depreciation and amortization (1,634 ) (3,239 ) Equity in earnings of affiliates 170 907 Other income (expense) items 772 684 Total operating income on discontinued operations before income taxes 7,047 7,131 Income tax expense (1,691 ) (1,759 ) Total income on discontinued operations $ 5,356 $ 5,372 Prior to the completion of the sale, we owned 65% and 50% of Case-Bencor Joint Venture (Washington) and Case-Bencor Joint Venture (Iowa), respectively, which were both included as part of the Geoconstruction business segment as investments in affiliates, and were discontinued as a result of the sale. Summarized financial information of the entities, which were accounted for as equity method investments, for the three and six months ended July 31, 2015 was as follows: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2015 2015 Income statement data: Revenues $ 2,376 $ 7,861 Gross profit 351 1,826 Net income (loss) 351 1,826 In accordance with our adoption of ASU 2014-08 effective February 1, 2015, additional disclosure relating to cash flow is required for discontinued operations. Cash flow data relating to the Geoconstruction business segment for the six months ended July 31, 2015 is presented below: Six Months Ended (in thousands) July 31, 2015 Cash flow data: Depreciation and amortization $ 3,239 Capital expenditures 207

Contingencies

Contingencies	6 Months Ended
	Jul. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Contingencies	11. Contingencies Our drilling activities involve certain operating hazards that can result in personal injury or loss of life, damage and destruction of property and equipment, damage to the surrounding areas, release of hazardous substances or wastes and other damage to the environment, interruption or suspension of drill site operations and loss of revenues and future business. The magnitude of these operating risks is amplified when we, as is frequently the case, conduct a project on a fixed-price, bundled basis where we delegate certain functions to subcontractors but remain responsible to the customer for the subcontracted work. In addition, we are exposed to potential liability under foreign, federal, state and local laws and regulations, contractual indemnification agreements or otherwise in connection with our services and products. Litigation arising from any such occurrences may result in Layne being named as a defendant in lawsuits asserting large claims. Although we maintain insurance protection that we consider economically prudent, there can be no assurance that any such insurance will be sufficient or effective under all circumstances or against all claims or hazards to which we may be subject or that we will be able to continue to obtain such insurance protection. A successful claim or damage resulting from a hazard for which we are not fully insured could have a material adverse effect on us. In addition, we do not maintain political risk insurance with respect to our foreign operations. We are involved in various other matters of litigation, claims and disputes which have arisen in the ordinary course of business. Some of our contracts contain provisions that require us to pay liquidated damages if we are responsible for the failure to meet specified contractual milestone dates and the applicable customer asserts a claim under those provisions. Those contracts define the conditions under which our customers may make claims against us for liquidated damages. In many cases where we had potential exposure for liquidated damages, such damages ultimately were not asserted by our customers. We believe that the ultimate disposition of these matters will not, individually and in the aggregate, have a material adverse effect upon our business or consolidated financial position, results of operations or cash flows. However, it is possible, that future results of operations for any particular quarterly or annual period could be materially affected by changes in the assumptions related to these proceedings. In accordance with U.S. generally accepted accounting principles, we record a liability when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. To the extent additional information arises or the strategies change, it is possible that our estimate of the probable liability in these matters may change.

Restructuring Costs

Restructuring Costs	6 Months Ended
	Jul. 31, 2016
Restructuring And Related Activities [Abstract]
Restructuring Costs	12. Restructuring Costs During the second quarter of FY 2017, we continued our efforts to improve our cost structure and streamline our operations, by initiating a plan to reduce costs and improve our profitability in our Water Resources segment (“Water Resources Business Performance Initiative”). The Water Resources Business Performance Initiative involves cost rationalization, increased standardization of functions such as sales, pricing and estimation, disposal of underutilized assets, and process improvements to drive efficiencies. We recorded approximately $0.6 million in restructuring costs for the three and six months ended July 31, 2016 related to the Water Resources Business Performance Initiative. We estimate remaining amounts to be incurred for the Water Resources Business Performance Initiative of approximately $1.5 million During FY 2016, we took steps to move towards a more focused strategy to simplify our business and build upon our capabilities in water (“FY2016 Restructuring Plan”). In response to these steps, and due to the continuing decline in the global minerals market, we implemented a plan to exit our operations in Africa and Australia. The FY2016 Restructuring Plan is expected to be completed by the end of FY2017. In FY 2017, we have incurred costs supporting this strategic focus, recognizing approximately $0.4 million and $0.9 million of restructuring expenses for the three and six months ended July 31, 2016, respectively. The FY2016 Restructuring Plan for the six months ended July 31, 2016 related to the segments as follows: $0.1 million in Inliner, $0.4 million in Heavy Civil, $0.2 million in Mineral Services, and $0.2 million in Unallocated Corporate Expenses. Total costs incurred from inception to July 31, 2016 for the FY2016 Restructuring Plan amounts to $17.1 million. We estimate remaining amounts to be incurred for the FY2016 Restructuring Plan of approximately $0.1 million. The following table summarizes the carrying amount of the accrual for the restructuring plans discussed above: Severance and other personnel- related (in thousands) costs Other Total Balance at January 31, 2016 $ 1,157 $ 56 $ 1,213 Restructuring Costs Water Resources Business Performance Initiative 187 416 603 FY2016 Restructuring Plan 210 647 857 Total restructuring costs 397 1,063 1,460 Cash expenditures (738 ) (714 ) (1,452 ) Adjustment to liability 25 10 35 Balance at July 31, 2016 $ 841 $ 415 $ 1,256

Accounting Policies and Basis21

Accounting Policies and Basis of Presentation (Policies)	6 Months Ended
	Jul. 31, 2016
Accounting Policies [Abstract]
Description of Business	Description of Business —Layne Christensen Company (together with its subsidiaries “Layne,” the “Company,” “we,” “our,” or “us”) is a global water management, construction and drilling company. We primarily operate in North America and South America. During the fiscal year ended January 31, 2016, we implemented a plan to exit our operations in Africa and Australia. Our customers include government agencies, investor-owned water utilities, industrial companies, global mining companies, consulting and engineering firms, heavy civil construction contractors, oil and gas companies and agribusinesses. We have an ownership interest in certain foreign affiliates operating in Latin America.
Fiscal Year	Fiscal Year – Our fiscal year end is January 31. References to fiscal years (in the form of “FY2017,” etc.) are to the twelve months ended on January 31 of that year.
Investment in Affiliated Companies	Investment in Affiliated Companies – Investments in affiliates in which we have the ability to exercise significant influence, but do not hold a controlling interest over operating and financial policies, are accounted for by the equity method. We evaluate our equity method investments for impairment when events or changes in circumstances indicate there is a loss in value of the investment that is other than a temporary decline. During the three months ended July 31, 2016, due to the continued softness in minerals pricing and the extended downturn in the minerals market, we extended our review of our equity method investments for impairment. Based on such analysis, no indication of impairment existed as of July 31, 2016.
Principles of Consolidation	Principles of Consolidation – The Condensed Consolidated Financial Statements include our accounts and the accounts of all of our subsidiaries where we exercise control. For investments in subsidiaries that are not wholly-owned, but where we exercise control, the equity held by the minority owners and their portions of net income (loss) are reflected as noncontrolling interests. All intercompany accounts and transactions have been eliminated in consolidation.
Presentation	Presentation— The unaudited Condensed Consolidated Financial Statements included herein have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America (“U.S.”) and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial information. Accordingly, certain information and disclosures normally included in our annual financial statements have been condensed or omitted. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with our consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended January 31, 2016 (“Annual Report”). We believe the unaudited Condensed Consolidated Financial Statements included herein reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the interim periods. The results of operations for the interim periods are not necessarily indicative of the results of operations to be expected for the full year. In the Notes to Condensed Consolidated Financial Statements, all dollar amounts in tabulations are in thousands of dollars, unless otherwise indicated. Beginning with the first quarter of FY2017, we are excluding nonvested restricted stock units (“RSU”) from the total shares issued and outstanding in our Condensed Consolidated Balance Sheets, since no shares are actually issued until the shares have vested and are no longer restricted. Once the restriction lapses on RSUs, the units are converted to unrestricted shares of our common stock and the par value of the stock is reclassified from additional paid-in-capital to common stock. RSU shares in prior periods have been reclassified to conform with this presentation. As discussed further in Note 10 to the Condensed Consolidated Financial Statements, during the third quarter of FY2016, we completed the sale of our Geoconstruction business segment. The results of operations related to the Geoconstruction business segment have been classified as discontinued operations for all periods presented. Unless noted otherwise, discussion in these Notes to Condensed Consolidated Financial Statements pertain to continuing operations.
Business Segments	Business Segments – We report our financial results under four reporting segments consisting of Water Resources, Inliner, Heavy Civil and Mineral Services. In the first quarter of FY2017, changes were made for certain of our smaller operations to reflect changes in organizational accountabilities as part of our strategy to simplify our business and streamline our operating and reporting structure. Our Collector Wells group was shifted from Heavy Civil to Water Resources to better align their operational expertise. We also shifted certain other smaller operations out of our “Other” segment and into our four reporting segments, and are no longer reporting the “Other” segment. Information for prior periods has been recast to conform to our new presentation. We also report corporate activities under the title “Unallocated Corporate.” Unallocated corporate expenses primarily consist of general and administrative functions performed on a company-wide basis and benefiting all segments. These costs include accounting, financial reporting, internal audit, treasury, legal, tax compliance, executive management and board of directors. Corporate assets include all assets not directly associated with a segment, and consist primarily of cash and deferred income taxes.
Use of and Changes in Estimates	Use of and Changes in Estimates – The preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Estimates and assumptions about future events and their effects cannot be perceived with certainty, and accordingly, these estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as our operating environment changes. While we believe that the estimates and assumptions used in the preparation of the Condensed Consolidated Financial Statements are appropriate, actual results could differ from those estimates.
Foreign Currency Transactions and Translation	Foreign Currency Transactions and Translation – In accordance with Accounting Standards Codification (“ASC”) Topic 830, “Foreign Currency Matters,” gains and losses resulting from foreign currency transactions are included in the Condensed Consolidated Statements of Operations. Assets and liabilities of non-U.S. subsidiaries whose functional currency is the local currency are translated into U.S. dollars at exchange rates prevailing at the balance sheet date. The net foreign currency exchange differences resulting from these translations are reported in accumulated other comprehensive income (loss). Revenues and expenses are translated at average foreign currency exchange rates during the reporting period. The cash flows and financing activities of our operations in Mexico are primarily denominated in U.S. dollars. Accordingly, these operations use the U.S. dollar as their functional currency. Monetary assets and liabilities are remeasured at period end foreign currency exchange rates and nonmonetary items are measured at historical foreign currency exchange rates with exchange rate differences reported in the statement of operations. Net foreign currency transaction losses were $(0.1) million for the three and six months ended July 31, 2016, and $0.1 million and less than $(0.1) million for the three and six months ended July 31, 2015, respectively, and are recorded in other income (expense), net in the accompanying Condensed Consolidated Statements of Operations.
Revenue Recognition	Revenue Recognition — Revenues are recognized on large, long-term construction contracts meeting the criteria of ASC Topic 605-35 “Construction-Type and Production-Type Contracts” (“ASC Topic 605-35”), using the percentage-of-completion method based upon the ratio of costs incurred to total estimated costs at completion. Contract price and cost estimates are reviewed periodically as work progresses and adjustments proportionate to the percentage of completion are reflected in contract revenues in the reporting period when such estimates are revised. The nature of accounting for construction contracts using the percentage-of-completion method is such that refinements of the estimating process for changing conditions and new developments may occur and are characteristic of the process. Many factors can and do change during a contract performance period which can result in a change to contract profitability including differing site conditions (to the extent that contract remedies are unavailable), the availability of skilled contract labor, the performance of major material suppliers, the performance of major subcontractors, unusual weather conditions and unexpected changes in material costs. These factors may result in revisions to costs and income and are recognized in the period in which the revisions become known. When the estimate on a contract indicates a loss, the entire loss is recorded during the accounting period in which the facts that caused the revision become known. Management evaluates the performance of contracts on an individual basis. In the ordinary course of business, but at least quarterly, we prepare updated estimates of cost and profit or loss for each contract. The cumulative effect of revisions in estimates of the total forecasted revenue and costs, including unapproved change orders and claims, during the course of the contract is reflected in the accounting period in which the facts that caused the revision become known. Large changes in cost estimates on larger, more complex construction projects can have a material impact on our financial statements and are reflected in results of operations when they become known. We record revenue on contracts relating to unapproved change orders and claims by including in revenue an amount less than or equal to the amount of the costs incurred by us to date for contract price adjustments that we seek to collect from customers for delays, errors in specifications or designs, change orders in dispute or unapproved as to scope or price, or other unanticipated additional costs, in each case when recovery of the costs is considered probable. The amount of unapproved change orders and claims revenues are included in our Condensed Consolidated Balance Sheets as part of costs and estimated earnings in excess of billings on uncompleted contracts. When determining the likelihood of eventual recovery, we consider such factors as our experience on similar projects and our experience with the customer. As new facts become known, an adjustment to the estimated recovery is made and reflected in the current period. As allowed by ASC Topic 605-35, revenue is recognized on smaller, short-term construction contracts using the completed contract method. Provisions for estimated losses on uncompleted construction contracts are made in the period in which such losses become known. We determine when short-term construction contracts are completed based on acceptance by the customer. Revenues for drilling contracts within Mineral Services are recognized in terms of the value of total work performed to date on the basis of actual footage or meterage drilled. Revenues for direct sales of equipment and other ancillary products not provided in conjunction with the performance of construction contracts are recognized at the date of delivery to, and acceptance by, the customer. Provisions for estimated warranty obligations are made in the period in which the sales occur. Our revenues are presented net of taxes imposed on revenue-producing transactions with our customers, such as, but not limited to, sales, use, value-added and some excise taxes.
Inventories	Inventories— We value inventories at the lower of cost or market. Cost of U.S. inventories and the majority of foreign operations are determined using the average cost method, which approximates FIFO. Inventories consist primarily of supplies and raw materials. Supplies of $19.0 million and $16.8 million and raw materials of $2.4 million and $2.7 million were included in inventories in the Condensed Consolidated Balance Sheets as of July 31, 2016 and January 31, 2016, respectively.
Goodwill	Goodwill —In accordance with ASC Topic 350-20, “Intangibles – Goodwill and Other,” we are required to test for the impairment of goodwill on at least an annual basis. We conduct this evaluation annually or more frequently if events or changes in circumstances indicate that goodwill might be impaired. We believe at this time that the carrying value of the remaining goodwill is appropriate, although to the extent additional information arises or our strategies change, it is possible that our conclusions regarding impairment of the remaining goodwill could change and result in a material effect on our financial position and results of operations. As of July 31, 2016 and January 31, 2016, we had $8.9 million of goodwill, included as part of Other Assets in the Condensed Consolidated Balance Sheets. The goodwill is all attributable to the Inliner reporting segment.
Other Long-lived Assets	Other Long-lived Assets —Long-lived assets, including amortizable intangible assets, are reviewed for recoverability whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Factors we consider important which could trigger an impairment review include but are not limited to the following: — significant underperformance of assets; — significant changes in the use of the assets; and — significant negative industry or economic trends. During the three months ended July 31, 2016, due to the ongoing softness in global commodity prices, and decreased activity levels compared to prior year, we reviewed the recoverability of the asset values of our long-lived assets in the Heavy Civil and Mineral Services segments. No impairments were indicated by such analyses as of July 31, 2016.
Cash and Cash Equivalents	Cash and Cash Equivalents —We consider investments with an original maturity of three months or less when purchased to be cash equivalents. Our cash equivalents are subject to potential credit risk. Our cash management and investment policies restrict investments to investment grade, highly liquid securities. The carrying value of cash and cash equivalents approximates fair value.
Restricted Deposits	Restricted Deposits – Restricted deposits consist of amounts associated with certain letters of credit for on-going projects, escrow funds related to a certain disposition, and judicial deposits associated with tax related legal proceedings in Brazil. Restricted deposits – current of $1.5 million and $3.5 million as of July 31, 2016 and January 31, 2016, respectively, are included in Other Current Assets in the Condensed Consolidated Balance Sheets. Restricted deposits – long term of $4.9 million and $4.3 million as of July 31, 2016 and January 31, 2016, respectively, are included in Other Assets in the Condensed Consolidated Balance Sheets.
Allowance for Uncollectible Accounts Receivable	Allowance for Uncollectible Accounts Receivable— We make ongoing estimates relating to the collectability of our accounts receivable and maintain an allowance for estimated losses resulting from the inability of our customers to make required payments. In determining the amount of the allowance, we make judgments about the creditworthiness of customers based on ongoing credit evaluations, and also consider a review of accounts receivable aging, industry trends, customer financial strength, credit standing and payment history to assess the probability of collection.
Concentration of Credit Risk	Concentration of Credit Risk —We grant credit to our customers, which may include concentrations in state and local governments or other customers. Although this concentration could affect our overall exposure to credit risk, we believe that our portfolio of accounts receivable is sufficiently diversified, thus spreading the credit risk. To manage this risk, we perform periodic credit evaluations of our customers’ financial condition, including monitoring our customers’ payment history and current credit worthiness. We do not generally require collateral in support of our trade receivables, but may require payment in advance or security in the form of a letter of credit or bank guarantee.
Fair Value of Financial Instruments	Fair Value of Financial Instruments —The carrying amounts of financial instruments, including cash and cash equivalents, customer receivables and accounts payable, approximate fair value at July 31, 2016 and January 31, 2016, because of the relatively short maturity of those instruments. See Note 6 to the Condensed Consolidated Financial Statements for other fair value disclosures.
Litigation and Other Contingencies	Litigation and Other Contingencies —We are involved in litigation incidental to our business, the disposition of which is not expected to have a material effect on our business, financial position, results of operations or cash flows. In addition, some of our contracts contain provisions that require payment of liquidated damages if we are responsible for the failure to meet specified contractual milestone dates and the applicable customer asserts a claim under these provisions. These contracts define the conditions under which our customers may make claims against us for liquidated damages. In many cases in which we have historically had potential exposure for liquidated damages, such damages ultimately were not asserted by our customers. It is possible, however, that future results of operations for any particular quarterly or annual period could be materially affected by changes in our assumptions related to these proceedings. If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability is accrued in our Condensed Consolidated Financial Statements. If the assessment indicates that a potentially material loss contingency is not probable but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, and an estimate of the range of possible losses, if determinable and material, is disclosed. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case.
Equity-Based Compensation	Equity-based Compensation— We recognize the cost of all equity-based instruments in the Condensed Consolidated Financial Statements using a fair-value measurement of the associated costs. The fair value of service-based equity-based compensation granted in the form of stock options is determined using a lattice valuation model and for certain market-based awards the fair value is determined using a Monte Carlo simulation model. Unearned compensation expense associated with the issuance of nonvested shares is amortized on a straight-line basis as the restrictions on the shares expire, subject to achievement of certain contingencies.
Income (Loss) Per Share	Income (loss) Per Share —Income (loss) per share is computed by dividing net income (loss) available to common shareholders by the weighted average number of common shares outstanding during the period. For periods in which we recognize losses, the calculation of diluted loss per share is the same as the calculation of basic loss per share. For periods in which we recognize net income, diluted earnings per common share is computed in the same way as basic earnings per common share except that the denominator is increased to include the number of additional common shares that would be outstanding if all potential common shares had been issued that were dilutive. Options to purchase common stock and nonvested shares are included based on the treasury stock method for dilutive earnings per share, except when their effect is antidilutive. The 4.25% Convertible Notes and the 8.0% Convertible Notes (see Note 3 to the Condensed Consolidated Financial Statements) are included in the calculation of diluted loss per share if their inclusion is dilutive under the if-converted method. Options to purchase 0.9 million shares have been excluded from weighted average shares in the three and six months ended July 31, 2016, respectively, as their effect was antidilutive. A total of 1.9 million nonvested shares have been excluded from weighted average shares in the three and six months ended July 31, 2016, as their effect was antidilutive. Options to purchase a total 1.1 million shares have been excluded from weighted average shares in the three and six months ended July 31, 2015, as their effect was antidilutive. A total of 1.5 million nonvested shares have been excluded from weighted average shares in the three and six months ended July 31, 2015, respectively, as their effect was antidilutive.
Supplemental Cash Flow Information	Supplemental Cash Flow Information —The amounts paid for income taxes, interest and noncash investing and financing activities were as follows: Six Months Ended July 31, (in thousands) 2016 2015 Income taxes paid $ 514 $ 1,109 Income tax refunds (171 ) (3,976 ) Interest paid 6,086 4,683 Noncash investing and financing activities: Exchange of 4.25% convertible notes for 8.0% convertible notes — 55,500 Accrued capital additions 2,772 1,442
New Accounting Pronouncements	New Accounting Pronouncements— In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses,” which requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASU 2016-13 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for fiscal years, and interim periods within those years, beginning after December 15, 2018. Accordingly, the standard is effective for us on February 1, 2020 using a modified retrospective approach. We are currently evaluating the impact of the adoption of this ASU and do not believe the effect will be material on our financial statements. In March 2016, the FASB issued ASU 2016-09, “Stock Compensation,” which simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods, and early adoption is permitted In March 2016, the FASB issued ASU No. 2016-06, “Derivatives and Hedging: Contingent Put and Call Options in Debt Instruments,” to clarify the steps required to assess whether a call or put option meets the criteria for bifurcation as an embedded derivative. ASU 2016-06 is effective for interim and annual periods beginning after December 15, 2016, and requires a modified retrospective approach to adoption. Early adoption is permitted. We are currently evaluating the impact of the adoption of this ASU and do not believe the effect will be material on our financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases,” which establishes a right-of-use (ROU) model that requires a lessee to record an ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. ASU 2016-02 requires modified retrospective adoption for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. We are currently evaluating the effect of adoption of this ASU and do not believe the effect will be material on our financial statements. On July 22, 2015, the FASB issued ASU On February 18, 2015, FASB issued ASU 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis.” This guidance which is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015, changes the consolidation analysis required under U.S. GAAP for limited partnerships and other variable interest entities (“VIE”). The adoption of this ASU did not have a material impact on our financial statements. The FASB issued ASU 2014-09, “Revenue from Contracts with Customers” on May 28, 2014. On August 12, 2015, the FASB issued ASU 2015-14, which defers the adoption of ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. This guidance defines the steps to recognize revenue for entities that have contracts with customers as well as requiring significantly expanded disclosures regarding the qualitative and quantitative information of the nature, amount, timing, and uncertainty of revenue and cash flows arising from such contracts. This guidance provides companies with a choice of applying it retrospectively to each reporting period presented or by recognizing the cumulative effect of applying it at the date of initial application (February 1, 2018 in our case) and not adjusting comparative information. In March 2016, the FASB issued ASU 2016-08, Principal versus Agent Considerations, which clarifies the implementation guidance on principal versus agent considerations in the new revenue recognition standard pursuant to ASU 2014-09. In April 2016, the FASB issued ASU 2016-10, Identifying Performance Obligations and Licensing, and in May 2016, the FASB issued ASU 2016-12, Narrow-Scope Improvements and Practical Expedients, which amend certain aspects of the new revenue recognition standard pursuant to ASU 2014-09. At this point, we are currently evaluating the requirements and impact the provisions of the standard will have on our financial statements.

Accounting Policies and Basis22

Accounting Policies and Basis of Presentation (Tables)	6 Months Ended
	Jul. 31, 2016
Accounting Policies [Abstract]
Schedule of Supplemental Cash Flow Information	Supplemental Cash Flow Information —The amounts paid for income taxes, interest and noncash investing and financing activities were as follows: Six Months Ended July 31, (in thousands) 2016 2015 Income taxes paid $ 514 $ 1,109 Income tax refunds (171 ) (3,976 ) Interest paid 6,086 4,683 Noncash investing and financing activities: Exchange of 4.25% convertible notes for 8.0% convertible notes — 55,500 Accrued capital additions 2,772 1,442

Property and Equipment (Tables)

Property and Equipment (Tables)	6 Months Ended
	Jul. 31, 2016
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consisted of the following: July 31, January 31, 2016 2016 Land $ 13,613 $ 13,474 Buildings 36,263 36,175 Machinery and equipment 364,027 375,698 Property and equipment, at cost 413,903 425,347 Less - Accumulated depreciation (304,554 ) (311,850 ) Property and equipment, net $ 109,349 $ 113,497

Indebtedness (Tables)

Indebtedness (Tables)	6 Months Ended
	Jul. 31, 2016
Debt Disclosure [Abstract]
Schedule of Debt Outstanding	Debt outstanding as of July 31, 2016, and January 31, 2016, was as follows: July 31, January 31, (in thousands) 2016 2016 4.25% Convertible Notes $ 63,048 $ 61,766 8.0% Convertible Notes 97,570 97,205 Capitalized lease obligations 22 106 Less amounts representing interest (1 ) (3 ) Total debt 160,639 159,074 Less current maturities of long-term debt (9 ) (88 ) Total long-term debt $ 160,630 $ 158,986
Summary of Carrying Value of Convertible Notes	The following table presents the carrying value of the Convertible Notes as of July 31, 2016: July 31, January 31, (in thousands) 2016 2016 4.25% Convertible Notes: Carrying amount of the equity conversion component $ 3,106 $ 3,106 Principal amount of the 4.25% Convertible Notes $ 69,500 $ 69,500 Unamortized deferred financing fees (1,286 ) (1,523 ) Unamortized debt discount (1) (5,166 ) (6,211 ) Net carrying amount $ 63,048 $ 61,766 8.0% Convertible Notes: Principal amount of the 8.0% Convertible Notes $ 99,898 $ 99,898 Unamortized deferred financing fees (2,328 ) (2,693 ) Net carrying amount $ 97,570 $ 97,205 (1) As of July 31, 2016, the remaining period over which the unamortized debt discount will be amortized is 27 months using an effective interest rate of 9.0%.

Other Income, Net (Tables)

Other Income, Net (Tables)	6 Months Ended
	Jul. 31, 2016
Other Income And Expenses [Abstract]
Schedule of Other Income, Net	Other income, net consisted of the following for the three and six months ended July 31, 2016 and 2015: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2016 2015 2016 2015 Net gain from disposal of property and equipment $ 108 $ 210 $ 253 $ 969 Interest income 15 114 63 386 Currency exchange gain (losses) (62 ) 111 (146 ) (48 ) Other 127 (183 ) 168 (14 ) Total $ 188 $ 252 $ 338 $ 1,293

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 31, 2016
Fair Value Disclosures [Abstract]
Schedule of Financial Instruments Held at Fair Value	Our financial instruments held at fair value are presented below as of July 31, 2016, and January 31, 2016: Fair Value Measurements (in thousands) Carrying Value Level 1 Level 2 Level 3 July 31, 2016 Financial Assets: Current restricted deposits held at fair value (1) $ 1,521 $ 1,521 — — Long term restricted deposits held at fair value (1) 4,900 4,900 — — Contingent consideration receivable (2) 4,244 — — $ 4,244 January 31, 2016 Financial Assets: Current restricted deposits held at fair value (1) $ 3,466 $ 3,466 — — Long term restricted deposits held at fair value (1) 4,252 4,252 — — Contingent consideration receivable (2) 4,244 — — $ 4,244 (1) Current restricted deposits are included in Other Current Asset in the Condensed Consolidated Balance Sheets. Long-term restricted deposits are included in Other Assets in the Condensed Consolidated Balance Sheets. (2) As discussed in Note 10 to the Condensed Consolidated Financial Statements, the contingent consideration receivable represents our share in the profits of one of the contracts assumed by the purchaser, as part of the sale of the Geoconstruction business on August 17, 2015. The amount was estimated based on the projected profits of the contract. There have been no changes in the estimated fair value since the closing date of the sale agreement.
Schedule of Carrying Values and Estimated Fair Values of Long-Term Debt	The following table summarized the carrying values and estimated fair values of the long-term debt: July 31, 2016 January 31, 2016 (in thousands) Carrying Value Fair Value Carrying Value Fair Value 4.25% Convertible Notes $ 63,048 $ 61,077 $ 61,766 $ 49,873 8.0% Convertible Notes 97,570 92,156 97,205 92,156

Equity-Based Compensation (Tabl

Equity-Based Compensation (Tables)	6 Months Ended
	Jul. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Nonvested Share Activity	A summary of nonvested share activity for the six months ended July 31, 2016, is as follows: Number of Shares Weighted Average Grant Date Fair Value Intrinsic Value (in thousands) Nonvested stock at February 1, 2016 1,407,170 $ 5.20 $ 7,205 Granted - Director's restricted stock 13,495 7.04 Granted - Restricted stock units 199,352 7.04 Granted - Performance vesting shares 447,903 4.70 Vested (26,349 ) 6.22 Forfeitures (94,368 ) 10.79 Nonvested stock at July 31, 2016 1,947,203 $ 5.00 $ 15,578
Summary of Stock Option Activity	A summary of stock option activity for the six months ended July 31, 2016, is as follows: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Intrinsic Value (in thousands) Outstanding at February 1, 2016 839,715 $ 17.61 7.1 $ — Granted 134,433 7.04 Expired (10,000 ) 29.29 Forfeited (27,157 ) 23.20 Outstanding at July 31, 2016 936,991 $ 15.81 6.9 $ 399 Exercisable at February 1, 2016 576,871 $ 19.00 6.5 Exercisable at July 31, 2016 771,869 $ 16.80 6.7 $ 399
Schedule of Valuation Assumptions of Stock Options	Assumptions: 2016 Weighted-average expected volatility 56.1% Expected dividend yield 0.0% Risk-free interest rate 0.6% Expected term (in years) 1.9 Exercise multiple factor 1.4 Post-vesting forfeiture 20.3%
Performance Based Nonvested Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Schedule of Valuation Assumptions	Assumptions used in the Monte Carlo simulation model for the six months ended July 31, 2016 were as follows: Assumptions: 2016 Weighted-average fair value 4.7% Weighted-average expected volatility 58.3% Expected dividend yield 0.0% Weighted-average risk free rate 0.9%

Investment in Affiliates (Table

Investment in Affiliates (Tables)	6 Months Ended
	Jul. 31, 2016
Equity Method Investments And Joint Ventures [Abstract]
Summary of Affiliates and Percentages Owned	A summary of material, jointly-owned affiliates, as well as their primary operating subsidiaries, if applicable, and the percentages directly and indirectly owned by us are as follows as of July 31, 2016: Percentage Owned Directly Percentage Owned Indirectly Boyles Bros Servicios Tecnicos Geologicos S. A. (Panama) 50.00 % Boytec, S.A. (Panama) 50.00 % Boytec Sondajes de Mexico, S.A. de C.V. (Mexico) 50.00 Sondajes Colombia, S.A. (Columbia) 50.00 Mining Drilling Fluids (Panama) 25.00 Plantel Industrial S.A. (Chile) 50.00 Christensen Chile, S.A. (Chile) 50.00 Christensen Commercial, S.A. (Chile) 50.00 Geotec Boyles Bros., S.A. (Chile) 50.00 Centro Internacional de Formacion S.A. (Chile) 50.00 Geoestrella S.A. (Chile) 25.00 Diamantina Christensen Trading (Panama) 42.69 Christensen Commercial, S.A. (Peru) 35.38 Geotec, S.A. (Peru) 35.38 Boyles Bros., Diamantina, S.A. (Peru) 29.49
Summary of Financial Information of Affiliates	Financial information of the affiliates is reported with a one-month lag in the reporting period. The impacts of the lag on our investment and results of operations are not significant. Summarized financial information of the affiliates was as follows: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2016 2015 2016 2015 Income statement data: Revenues $ 30,018 $ 33,813 $ 59,907 $ 70,136 Gross profit 5,596 4,349 11,533 9,663 Operating income 1,900 690 4,278 1,869 Net income (loss) 1,004 (2,854 ) 3,527 (3,090 )

Operating Segments (Tables)

Operating Segments (Tables)	6 Months Ended
	Jul. 31, 2016
Segment Reporting [Abstract]
Schedule of Financial Information for Segments	Financial information for our segments is presented below. Unallocated corporate expenses primarily consist of general and administrative functions performed on a company-wide basis and benefiting all segments. These costs include expenses related to accounting, financial reporting, internal audit, treasury, legal, tax compliance, executive management and board of directors. Unallocated Three Months Ended July 31, 2016 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 56,471 $ 52,976 $ 35,414 $ 14,318 $ — $ (130 ) $ 159,049 (Loss) income from continuing operations before income taxes $ (2,238 ) $ 6,808 $ 103 $ 1,634 $ (8,149 ) $ (4,209 ) $ (6,051 ) Interest expense — — — — — 4,209 4,209 Depreciation expense and amortization 3,015 1,262 428 1,801 448 — 6,954 Non-cash equity-based compensation 105 43 37 45 615 — 845 Equity in (earnings) losses of affiliates — — — (458 ) — — (458 ) Restructuring costs 603 72 4 173 153 — 1,005 Other expense (income), net 280 (52 ) (154 ) (479 ) 217 — (188 ) Dividends received from affiliates — — — 1,347 — — 1,347 Adjusted EBITDA $ 1,765 $ 8,133 $ 418 $ 4,063 $ (6,716 ) $ — $ 7,663 Unallocated Three Months Ended July 31, 2015 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 60,599 $ 41,790 $ 48,546 $ 25,981 $ — $ (599 ) $ 176,317 (Loss) income from continuing operations before income taxes $ (962 ) $ 4,422 $ (1,178 ) $ (14,422 ) $ (10,068 ) $ (4,295 ) $ (26,503 ) Interest expense — — — — — 4,295 4,295 Depreciation expense and amortization 3,311 1,031 655 2,788 469 — 8,254 Non-cash equity-based compensation 80 46 5 45 527 — 703 Equity in (earnings) losses of affiliates — — — 1,486 — — 1,486 Impairment charges 4,598 — — — — — 4,598 Restructuring costs (45 ) (2 ) (10 ) 11,675 306 — 11,924 Other expense (income), net 269 (46 ) (179 ) (191 ) (105 ) — (252 ) Dividends received from affiliates — — — 847 — — 847 Adjusted EBITDA $ 7,251 $ 5,451 $ (707 ) $ 2,228 $ (8,871 ) $ — $ 5,352 Unallocated Six Months Ended July 31, 2016 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 118,421 $ 100,510 $ 74,507 $ 25,573 $ — $ (223 ) $ 318,788 (Loss) income from continuing operations before income taxes $ (1,938 ) $ 12,453 $ (679 ) $ 1,287 $ (16,309 ) $ (8,455 ) $ (13,641 ) Interest expense — — — — — 8,455 8,455 Depreciation expense and amortization 6,168 2,516 897 3,020 781 — 13,382 Non-cash equity-based compensation 309 294 74 94 1,321 — 2,092 Equity in (earnings) losses of affiliates — — — (1,727 ) — — (1,727 ) Restructuring costs 603 72 395 237 153 — 1,460 Other expense (income), net 720 16 (138 ) (1,235 ) 299 — (338 ) Dividends received from affiliates — — — 2,438 — — 2,438 Adjusted EBITDA $ 5,862 $ 15,351 $ 549 $ 4,114 $ (13,755 ) $ — $ 12,121 Unallocated Six Months Ended July 31, 2015 Water Heavy Mineral Corporate Other Items/ (in thousands) Resources Inliner Civil Services Expenses Eliminations Total Revenues $ 118,751 $ 89,810 $ 93,629 $ 49,505 $ — $ (1,107 ) $ 350,588 Income (loss) from continuing operations before income taxes $ 1,929 $ 9,664 $ (3,201 ) $ (16,974 ) $ (19,823 ) $ (3,911 ) $ (32,316 ) Interest expense — — — — — 8,147 8,147 Depreciation expense and amortization 6,761 2,028 1,350 5,889 961 — 16,989 Non-cash equity-based compensation 229 585 183 168 1,148 — 2,313 Equity in (earnings) losses of affiliates — — — 1,593 — — 1,593 Impairment charges 4,598 — — — — — 4,598 Restructuring costs 18 17 31 11,696 352 — 12,114 Gain on extinguishment of debt — — — — — (4,236 ) (4,236 ) Other (income) expense, net (167 ) (42 ) (540 ) (541 ) (3 ) — (1,293 ) Dividends received from affiliates — — — 2,210 — — 2,210 Adjusted EBITDA $ 13,368 $ 12,252 $ (2,177 ) $ 4,041 $ (17,365 ) $ — $ 10,119
Summary of Revenue for Continuing Operations by Product Line and Major Geographic Area	The following table summarizes revenue for our continuing operations, by product line and by major geographic area, for the three and six months ended July 31, 2016 and 2015: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2016 2015 2016 2015 Product Line Information Water systems $ 49,394 $ 54,896 $ 104,872 $ 107,405 Water treatment technologies 3,152 2,417 7,421 6,127 Sewer rehabilitation 52,976 41,790 100,510 89,810 Water and wastewater plant construction 21,132 39,434 42,440 73,157 Pipeline construction 13,569 8,785 30,542 18,975 Environmental and specialty drilling 3,393 2,215 6,276 3,598 Exploration drilling 13,618 24,424 23,912 45,488 Other 1,815 2,356 2,815 6,028 Total revenues $ 159,049 $ 176,317 $ 318,788 $ 350,588 Geographic Information United States $ 152,228 $ 160,905 $ 306,268 $ 321,951 Africa/Australia — 3,872 152 7,962 South America 1,838 2,073 2,301 3,983 Mexico 4,966 8,806 9,966 15,467 Other foreign 17 661 101 1,225 Total revenues $ 159,049 $ 176,317 $ 318,788 $ 350,588

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jul. 31, 2016
Geoconstruction Business Segment [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Schedule of Financial Results of Discontinued Operations	The results of operations associated with the Geoconstruction business segment for the three and six months ended July 31, 2015 were as follows: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2015 2015 Revenue $ 22,860 $ 42,952 Cost of revenues (exclusive of depreciation and amortization, shown below) (13,710 ) (31,155 ) Selling, general and administrative expenses (exclusive of depreciation and amortization, shown below) (1,411 ) (3,018 ) Depreciation and amortization (1,634 ) (3,239 ) Equity in earnings of affiliates 170 907 Other income (expense) items 772 684 Total operating income on discontinued operations before income taxes 7,047 7,131 Income tax expense (1,691 ) (1,759 ) Total income on discontinued operations $ 5,356 $ 5,372
Schedule of Cash Flow Data	In accordance with our adoption of ASU 2014-08 effective February 1, 2015, additional disclosure relating to cash flow is required for discontinued operations. Cash flow data relating to the Geoconstruction business segment for the six months ended July 31, 2015 is presented below: Six Months Ended (in thousands) July 31, 2015 Cash flow data: Depreciation and amortization $ 3,239 Capital expenditures 207
Case-Bencor Joint Venture [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Schedule of Financial Results of Discontinued Operations	Prior to the completion of the sale, we owned 65% and 50% of Case-Bencor Joint Venture (Washington) and Case-Bencor Joint Venture (Iowa), respectively, which were both included as part of the Geoconstruction business segment as investments in affiliates, and were discontinued as a result of the sale. Summarized financial information of the entities, which were accounted for as equity method investments, for the three and six months ended July 31, 2015 was as follows: Three Months Six Months Ended July 31, Ended July 31, (in thousands) 2015 2015 Income statement data: Revenues $ 2,376 $ 7,861 Gross profit 351 1,826 Net income (loss) 351 1,826

Restructuring Costs (Tables)

Restructuring Costs (Tables)	6 Months Ended
	Jul. 31, 2016
Restructuring And Related Activities [Abstract]
Schedule of Carrying Amount of Accrual for Restructuring Plans	The following table summarizes the carrying amount of the accrual for the restructuring plans discussed above: Severance and other personnel- related (in thousands) costs Other Total Balance at January 31, 2016 $ 1,157 $ 56 $ 1,213 Restructuring Costs Water Resources Business Performance Initiative 187 416 603 FY2016 Restructuring Plan 210 647 857 Total restructuring costs 397 1,063 1,460 Cash expenditures (738 ) (714 ) (1,452 ) Adjustment to liability 25 10 35 Balance at July 31, 2016 $ 841 $ 415 $ 1,256

Accounting Policies and Basis32

Accounting Policies and Basis of Presentation - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jul. 31, 2016USD ($)shares	Jul. 31, 2015USD ($)shares	Jul. 31, 2016USD ($)Segmentsshares	Jul. 31, 2015USD ($)shares	Jan. 31, 2016USD ($)	Mar. 02, 2015
Significant Accounting Policies [Line Items]
Impairment charges		$ 4,598,000		$ 4,598,000
Issuance of nonvested shares (in shares) | shares			0
Number of reportable segments | Segments			4
Net foreign currency transaction gains (losses)	$ (62,000)	$ 111,000	$ (146,000)	$ (48,000)
Supplies	19,000,000		19,000,000		$ 16,800,000
Raw materials	$ 2,400,000		$ 2,400,000		2,700,000
Method used to determine the fair value of equity-based compensation granted			The fair value of service-based equity-based compensation granted in the form of stock options is determined using a lattice valuation model and for certain market-based awards the fair value is determined using a Monte Carlo simulation model.
8.0% Convertible Notes [Member]
Significant Accounting Policies [Line Items]
Debt instrument, stated percentage	8.00%		8.00%			8.00%
Convertible Senior Notes [Member] | 4.25% Convertible Notes [Member]
Significant Accounting Policies [Line Items]
Debt instrument, stated percentage	4.25%		4.25%			4.25%
Stock Option [Member]
Significant Accounting Policies [Line Items]
Antidilutive securities excluded from weighted average shares | shares	900,000	1,100,000	900,000	1,100,000
Nonvested Stock [Member]
Significant Accounting Policies [Line Items]
Antidilutive securities excluded from weighted average shares | shares	1,900,000	1,500,000	1,900,000	1,500,000
Heavy Civil and Mineral Services [Member]
Significant Accounting Policies [Line Items]
Impairment of long-lived assets			$ 0
Other Assets [Member]
Significant Accounting Policies [Line Items]
Goodwill	$ 8,900,000		8,900,000		8,900,000
Restricted deposits, long term	4,900,000		4,900,000		4,300,000
Other Current Assets [Member]
Significant Accounting Policies [Line Items]
Restricted deposits, current	1,500,000		1,500,000		$ 3,500,000
Other Nonoperating Income (Expense) [Member]
Significant Accounting Policies [Line Items]
Net foreign currency transaction gains (losses)	$ (100,000)	$ 100,000	(100,000)	$ (100,000)
Equity Method Investments [Member]
Significant Accounting Policies [Line Items]
Impairment charges			$ 0

Accounting Policies and Basis33

Accounting Policies and Basis of Presentation - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Supplemental Cash Flow Information [Abstract]
Income taxes paid	$ 514	$ 1,109
Income tax refunds	(171)	(3,976)
Interest paid	6,086	4,683
Noncash investing and financing activities:
Exchange of 4.25% convertible notes for 8.0% convertible notes		55,500
Accrued capital additions	$ 2,772	$ 1,442

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 413,903	$ 425,347
Less - Accumulated depreciation	(304,554)	(311,850)
Property and equipment, net	109,349	113,497
Land [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	13,613	13,474
Buildings [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	36,263	36,175
Machinery and Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 364,027	$ 375,698

Indebtedness - Debt Outstanding

Indebtedness - Debt Outstanding (Detail) - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016
Debt Instrument [Line Items]
Capitalized lease obligations	$ 22	$ 106
Less amounts representing interest	(1)	(3)
Total debt	160,639	159,074
Less current maturities of long-term debt	(9)	(88)
Total long-term debt	160,630	158,986
8.0% Convertible Notes [Member]
Debt Instrument [Line Items]
Convertible Notes	97,570	97,205
Convertible Senior Notes [Member] | 4.25% Convertible Notes [Member]
Debt Instrument [Line Items]
Convertible Notes	$ 63,048	$ 61,766

Indebtedness - Additional Infor

Indebtedness - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 02, 2015	Apr. 30, 2016	Jul. 31, 2015	Jul. 31, 2016	Jan. 31, 2016
Debt Instrument [Line Items]
Debt instrument, converted amount			$ 55,500
Gain on extinguishment of debt			$ 4,236
Surety bonds issued				$ 206,100	$ 259,700
8.0% Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument, stated percentage	8.00%			8.00%
Debt instrument, converted amount	$ 49,900
Convertible Senior Notes [Member] | 4.25% Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument, original debt converted	$ 55,500
Debt instrument, stated percentage	4.25%			4.25%
Convertible notes fair value	$ 42,100
Transaction costs allocated to liability component	900
Gain on extinguishment of debt		$ 4,200
Debt instrument remaining exchange consideration	7,800
Transaction costs allocated to equity component	$ 200

Indebtedness - Carrying Value o

Indebtedness - Carrying Value of Convertible Notes (Detail) - USD ($) $ in Thousands		Jul. 31, 2016	Jan. 31, 2016
Schedule Of Convertible Notes [Line Items]
Net carrying amount		$ 160,618	$ 158,971
Convertible Senior Notes [Member] | 4.25% Convertible Notes [Member]
Schedule Of Convertible Notes [Line Items]
Carrying amount of the equity conversion component		3,106	3,106
Principal amount		69,500	69,500
Unamortized deferred financing fees		(1,286)	(1,523)
Unamortized debt discount	[1]	(5,166)	(6,211)
Net carrying amount		63,048	61,766
Convertible Senior Notes [Member] | 8.0% Convertible Notes [Member]
Schedule Of Convertible Notes [Line Items]
Principal amount		99,898	99,898
Unamortized deferred financing fees		(2,328)	(2,693)
Net carrying amount		$ 97,570	$ 97,205
[1]	As of July 31, 2016, the remaining period over which the unamortized debt discount will be amortized is 27 months using an effective interest rate of 9.0%.

Indebtedness - Carrying Value38

Indebtedness - Carrying Value of Convertible Notes (Parenthetical) (Detail) - Convertible Senior Notes [Member] - 4.25% Convertible Notes [Member]	6 Months Ended
	Jul. 31, 2016
Schedule Of Convertible Notes [Line Items]
Remaining period over which unamortized debt discount will be amortized	27 months
Percentage of effective interest rate	9.00%

Other Income, Net (Detail)

Other Income, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Other Income And Expenses [Abstract]
Net gain from disposal of property and equipment	$ 108	$ 210	$ 253	$ 969
Interest income	15	114	63	386
Currency exchange gain (losses)	(62)	111	(146)	(48)
Other	127	(183)	168	(14)
Total	$ 188	$ 252	$ 338	$ 1,293

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015	Jan. 31, 2016
Income Tax Contingency [Line Items]
Income tax benefit (expense)	$ 741,000	$ 2,993,000	$ (472,000)	$ 2,232,000
Tax benefit on domestic deferred tax assets	0	0	0	0
Tax benefit on foreign deferred tax assets	$ 0	$ 0	$ 0	$ 0
Effective tax rate for continued operations	12.20%	11.30%	(3.50%)	6.90%
Unrecognized tax benefits	$ 10,200,000		$ 10,200,000		$ 10,800,000
Unrecognized tax benefits that would affect the effective tax rate if recognized	10,200,000		10,200,000		10,800,000
Possible decrease in unrecognized tax benefits due to settlements of audit issues	3,400,000		3,400,000
Liability for income tax-related interest and penalties	8,000,000		8,000,000		$ 7,800,000
Domestic Country [Member]
Income Tax Contingency [Line Items]
Deferred tax assets after valuation allowance	0		0
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Deferred tax assets after valuation allowance	800,000		800,000
Estimated taxable income to realize deferred tax asset	$ 2,600,000		$ 2,600,000

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Financial Instruments Held at Fair Value (Detail) - USD ($) $ in Thousands		Jul. 31, 2016	Jan. 31, 2016
Carrying Value [Member]
Financial Assets:
Contingent consideration receivable	[1]	$ 4,244	$ 4,244
Carrying Value [Member] | Other Current Asset [Member]
Financial Assets:
Restricted deposits held at fair value	[2]	1,521	3,466
Carrying Value [Member] | Other Non Current Asset [Member]
Financial Assets:
Restricted deposits held at fair value	[2]	4,900	4,252
Fair Value Measurements [Member] | Fair Value Measurements - Level 3 [Member]
Financial Assets:
Contingent consideration receivable	[1]	4,244	4,244
Fair Value Measurements [Member] | Other Current Asset [Member] | Fair Value Measurements - Level 1 [Member]
Financial Assets:
Restricted deposits held at fair value	[2]	1,521	3,466
Fair Value Measurements [Member] | Other Non Current Asset [Member] | Fair Value Measurements - Level 1 [Member]
Financial Assets:
Restricted deposits held at fair value	[2]	$ 4,900	$ 4,252
[1]	As discussed in Note 10 to the Condensed Consolidated Financial Statements, the contingent consideration receivable represents our share in the profits of one of the contracts assumed by the purchaser, as part of the sale of the Geoconstruction business on August 17, 2015. The amount was estimated based on the projected profits of the contract. There have been no changes in the estimated fair value since the closing date of the sale agreement.
[2]	Current restricted deposits are included in Other Current Asset in the Condensed Consolidated Balance Sheets. Long-term restricted deposits are included in Other Assets in the Condensed Consolidated Balance Sheets.

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	Jul. 31, 2016	Mar. 02, 2015
4.25% Convertible Notes [Member] | Convertible Senior Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, stated percentage	4.25%	4.25%
8.0% Convertible Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, stated percentage	8.00%	8.00%

Fair Value Measurements - Sch43

Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Long-Term Debt (Detail) - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016	Mar. 02, 2015
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible notes carrying value	$ 160,618	$ 158,971
4.25% Convertible Notes [Member] | Convertible Senior Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible notes carrying value	63,048	61,766
Convertible notes fair value			$ 42,100
8.0% Convertible Notes [Member] | Convertible Senior Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible notes carrying value	97,570	97,205
Fair Value Measurements Nonrecurring | Fair Value Measurements - Level 1 [Member] | 4.25% Convertible Notes [Member] | Convertible Senior Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible notes carrying value	63,048	61,766
Convertible notes fair value	61,077	49,873
Fair Value Measurements Nonrecurring | Fair Value Measurements - Level 1 [Member] | 8.0% Convertible Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible notes carrying value	97,570	97,205
Convertible notes fair value	$ 92,156	$ 92,156

Equity-Based Compensation - Add

Equity-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available to be granted under the plans	86,479		86,479
Number of shares, granted			134,433
Compensation cost	$ 800,000	$ 700,000	$ 2,092,000	$ 2,397,000
Income tax benefit	300,000	$ 300,000	800,000	$ 900,000
Income tax benefit realized			$ 0
Weighted average fair value per share at the date of grant for the options granted			$ 1.59
Restricted Stock [Member] | Two Thousand And Six Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			13,495
Restricted Stock Units [Member] | Two Thousand And Six Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			199,352
Performance Vesting Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			447,903
Performance Vesting Restricted Stock Units [Member] | Two Thousand And Six Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			447,903
Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost for unvested stock options	300,000		$ 300,000
Weighted-average period			1 year 3 months 18 days
Stock Option [Member] | Two Thousand And Six Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, granted			134,433
Nonvested Restricted Stock And Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 5,300,000		$ 5,300,000
Weighted-average period			1 year 10 months 24 days

Equity-Based Compensation - Sum

Equity-Based Compensation - Summary of Nonvested Share Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jul. 31, 2016	Jan. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Nonvested stock at beginning balance	1,407,170
Number of shares, Vested	(26,349)
Number of shares, Forfeitures	(94,368)
Number of shares, Nonvested stock at ending balance	1,947,203
Weighted average grant date fair value, Nonvested stock at beginning balance	$ 5.20
Weighted average grant date fair value, Vested	6.22
Weighted average grant date fair value, Forfeitures	10.79
Weighted average grant date fair value, Nonvested stock at ending balance	$ 5
Intrinsic value, Nonvested stock	$ 15,578	$ 7,205
Restricted Stock Units [Member] | Director [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Granted	13,495
Weighted average grant date fair value, Granted	$ 7.04
Restricted Stock Units [Member] | Non Director [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Granted	199,352
Weighted average grant date fair value, Granted	$ 7.04
Performance Vesting Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Granted	447,903
Weighted average grant date fair value, Granted	$ 4.70

Equity-Based Compensation - S46

Equity-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 31, 2016	Jan. 31, 2016
Number of Shares [Roll Forward]
Number of shares, Outstanding at beginning balance	839,715
Number of shares, Granted	134,433
Number of shares, Expired	(10,000)
Number of shares, Forfeited	(27,157)
Number of shares, Outstanding at ending balance	936,991	839,715
Number of shares, Exercisable	771,869	576,871
Weighted Average Exercise Price [Abstract]
Weighted average exercise price, Outstanding at beginning balance	$ 17.61
Weighted average exercise price, Granted	7.04
Weighted average exercise price, Expired	29.29
Weighted average exercise price, Forfeited	23.20
Weighted average exercise price, Outstanding at ending balance	15.81	$ 17.61
Weighted average exercise price, Exercisable	19
Weighted average exercise price, Exercisable	$ 16.80	$ 19
Weighted Average Contractual Term and Intrinsic Value [Abstract]
Weighted average remaining contractual term, Outstanding	6 years 10 months 24 days	7 years 1 month 6 days
Weighted average remaining contractual term, Exercisable	6 years 8 months 12 days	6 years 6 months
Intrinsic value, Outstanding at ending balance	$ 399
Intrinsic value, Exercisable at ending balance	$ 399

Equity-Based Compensation - Val

Equity-Based Compensation - Valuation Assumptions of Stock Options (Detail)	6 Months Ended
	Jul. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Weighted-average expected volatility	56.10%
Expected dividend yield	0.00%
Risk-free interest rate	0.60%
Expected term (in years)	1 year 10 months 24 days
Exercise multiple factor	1.4
Post-vesting forfeiture	20.30%

Equity-Based Compensation - V48

Equity-Based Compensation - Valuation Assumptions of Performance Based Nonvested Stock Awards (Detail)	6 Months Ended
	Jul. 31, 2016$ / shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average expected volatility	56.10%
Expected dividend yield	0.00%
Weighted-average risk free rate	0.60%
Performance Based Nonvested Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average fair value	$ 4.7
Weighted-average expected volatility	58.30%
Expected dividend yield	0.00%
Weighted-average risk free rate	0.90%

Investment in Affiliates (Detai

Investment in Affiliates (Detail)	Jul. 31, 2016
Boyles Bros Servicios Tecnicos Geologicos S.A. [Member] | Percentage Owned Directly [Member] | Panama [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Boytec, S.A. [Member] | Percentage Owned Indirectly [Member] | Panama [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Boytec Sondajes de Mexico, S.A. de C.V. [Member] | Percentage Owned Indirectly [Member] | Mexico [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Sondajes Colombia, S.A. [Member] | Percentage Owned Indirectly [Member] | Colombia [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Mining Drilling Fluids [Member] | Percentage Owned Indirectly [Member] | Panama [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	25.00%
Plantel Industrial S.A. [Member] | Percentage Owned Indirectly [Member] | Chile [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Christensen Chile, S.A. [Member] | Percentage Owned Directly [Member] | Chile [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Christensen Commercial, S.A. [Member] | Percentage Owned Directly [Member] | Chile [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Christensen Commercial, S.A. [Member] | Percentage Owned Directly [Member] | Peru [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	35.38%
Geotec Boyles Bros., S.A. [Member] | Percentage Owned Directly [Member] | Chile [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Centro Internacional de Formacion S.A. [Member] | Percentage Owned Indirectly [Member] | Chile [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	50.00%
Geoestrella S.A. [Member] | Percentage Owned Indirectly [Member] | Chile [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	25.00%
Diamantina Christensen Trading [Member] | Percentage Owned Directly [Member] | Panama [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	42.69%
Geotec, S.A. [Member] | Percentage Owned Directly [Member] | Peru [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	35.38%
Boyles Bros., Diamantina, S.A. [Member] | Percentage Owned Directly [Member] | Peru [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage Owned	29.49%

Investment in Affiliates - Fina

Investment in Affiliates - Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Income statement data:
Revenues	$ 30,018	$ 33,813	$ 59,907	$ 70,136
Gross profit	5,596	4,349	11,533	9,663
Operating income	1,900	690	4,278	1,869
Net income (loss)	$ 1,004	$ (2,854)	$ 3,527	$ (3,090)

Operating Segments - Additional

Operating Segments - Additional Information (Detail)	6 Months Ended
	Jul. 31, 2016Segments
Segment Reporting [Abstract]
Number of Operating Segments	4

Operating Segments - Financial

Operating Segments - Financial Information for Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Segment Reporting Information [Line Items]
Revenues	$ 159,049	$ 176,317	$ 318,788	$ 350,588
(Loss) income from continuing operations before income taxes	(6,051)	(26,503)	(13,641)	(32,316)
Interest expense	4,209	4,295	8,455	8,147
Depreciation expense and amortization	6,954	8,254	13,382	16,989
Non-cash equity-based compensation	845	703	2,092	2,313
Equity in (earnings) losses of affiliates	(458)	1,486	(1,727)	1,593
Impairment charges		4,598		4,598
Restructuring costs	1,005	11,924	1,460	12,114
Gain on extinguishment of debt				4,236
Other expense (income), net	(188)	(252)	(338)	(1,293)
Dividends received from affiliates	1,347	847	2,438	2,210
Adjusted EBITDA	7,663	5,352	12,121	10,119
Operating Segments [Member] | Water Resources [Member]
Segment Reporting Information [Line Items]
Revenues	56,471	60,599	118,421	118,751
(Loss) income from continuing operations before income taxes	(2,238)	(962)	(1,938)	1,929
Depreciation expense and amortization	3,015	3,311	6,168	6,761
Non-cash equity-based compensation	105	80	309	229
Impairment charges		4,598		4,598
Restructuring costs	603	(45)	603	18
Other expense (income), net	280	269	720	(167)
Adjusted EBITDA	1,765	7,251	5,862	13,368
Operating Segments [Member] | Inliner [Member]
Segment Reporting Information [Line Items]
Revenues	52,976	41,790	100,510	89,810
(Loss) income from continuing operations before income taxes	6,808	4,422	12,453	9,664
Depreciation expense and amortization	1,262	1,031	2,516	2,028
Non-cash equity-based compensation	43	46	294	585
Restructuring costs	72	(2)	72	17
Other expense (income), net	(52)	(46)	16	(42)
Adjusted EBITDA	8,133	5,451	15,351	12,252
Operating Segments [Member] | Heavy Civil [Member]
Segment Reporting Information [Line Items]
Revenues	35,414	48,546	74,507	93,629
(Loss) income from continuing operations before income taxes	103	(1,178)	(679)	(3,201)
Depreciation expense and amortization	428	655	897	1,350
Non-cash equity-based compensation	37	5	74	183
Restructuring costs	4	(10)	395	31
Other expense (income), net	(154)	(179)	(138)	(540)
Adjusted EBITDA	418	(707)	549	(2,177)
Operating Segments [Member] | Mineral Services [Member]
Segment Reporting Information [Line Items]
Revenues	14,318	25,981	25,573	49,505
(Loss) income from continuing operations before income taxes	1,634	(14,422)	1,287	(16,974)
Depreciation expense and amortization	1,801	2,788	3,020	5,889
Non-cash equity-based compensation	45	45	94	168
Equity in (earnings) losses of affiliates	(458)	1,486	(1,727)	1,593
Restructuring costs	173	11,675	237	11,696
Other expense (income), net	(479)	(191)	(1,235)	(541)
Dividends received from affiliates	1,347	847	2,438	2,210
Adjusted EBITDA	4,063	2,228	4,114	4,041
Unallocated Corporate Expenses [Member]
Segment Reporting Information [Line Items]
(Loss) income from continuing operations before income taxes	(8,149)	(10,068)	(16,309)	(19,823)
Depreciation expense and amortization	448	469	781	961
Non-cash equity-based compensation	615	527	1,321	1,148
Restructuring costs	153	306	153	352
Other expense (income), net	217	(105)	299	(3)
Adjusted EBITDA	(6,716)	(8,871)	(13,755)	(17,365)
Other Items/ Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(130)	(599)	(223)	(1,107)
(Loss) income from continuing operations before income taxes	(4,209)	(4,295)	(8,455)	(3,911)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Interest expense	$ 4,209	$ 4,295	$ 8,455	8,147
Gain on extinguishment of debt				$ (4,236)

Operating Segments - Summary of

Operating Segments - Summary of Revenue for Continuing Operations by Product Line and Major Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	$ 159,049	$ 176,317	$ 318,788	$ 350,588
Water systems [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	49,394	54,896	104,872	107,405
Water treatment technologies [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	3,152	2,417	7,421	6,127
Sewer rehabilitation [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	52,976	41,790	100,510	89,810
Water and wastewater plant construction [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	21,132	39,434	42,440	73,157
Pipeline construction [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	13,569	8,785	30,542	18,975
Environmental and specialty drilling [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	3,393	2,215	6,276	3,598
Exploration drilling [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	13,618	24,424	23,912	45,488
Other [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	1,815	2,356	2,815	6,028
United States [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	152,228	160,905	306,268	321,951
Africa / Australia [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues		3,872	152	7,962
South America [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	1,838	2,073	2,301	3,983
Mexico [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	4,966	8,806	9,966	15,467
Other foreign [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	$ 17	$ 661	$ 101	$ 1,225

Discontinued Operations - Addit

Discontinued Operations - Additional Information (Detail) - USD ($) $ in Millions	Jul. 31, 2016	Aug. 17, 2015	Aug. 16, 2015
Geoconstruction [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sales price of discontinued operation		$ 47.7
Contingent consideration receivable on sale of discontinued operation	$ 4.2
Geoconstruction [Member] | Other Assets [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale price held in escrow	$ 1.5
Case Bencor Joint Venture Washington [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Ownership percentage owned prior to the completion of sale			65.00%
Case Bencor Joint Venture Iowa [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Ownership percentage owned prior to the completion of sale			50.00%

Discontinued Operations - Sched

Discontinued Operations - Schedule of Results of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 31, 2015	Jul. 31, 2015
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total income on discontinued operations	$ 5,356	$ 5,372
Geoconstruction Business Segment [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Revenue	22,860	42,952
Cost of revenues (exclusive of depreciation and amortization, shown below)	(13,710)	(31,155)
Selling, general and administrative expenses (exclusive of depreciation and amortization, shown below)	(1,411)	(3,018)
Depreciation and amortization	(1,634)	(3,239)
Equity in earnings of affiliates	170	907
Other income (expense) items	772	684
Total operating income on discontinued operations before income taxes	7,047	7,131
Income tax expense	(1,691)	(1,759)
Total income on discontinued operations	$ 5,356	$ 5,372

Discontinued Operations - Sch56

Discontinued Operations - Schedule of Summarized Financial Information (Detail) - Case-Bencor Joint Venture [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 31, 2015	Jul. 31, 2015
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Revenues	$ 2,376	$ 7,861
Gross profit	351	1,826
Net income (loss)	$ 351	$ 1,826

Discontinued Operations - Sch57

Discontinued Operations - Schedule of Cash flow Data (Detail) - Geoconstruction Business Segment [Member] $ in Thousands	6 Months Ended
	Jul. 31, 2015USD ($)
Cash flow data:
Depreciation and amortization	$ 3,239
Capital expenditures	$ 207

Restructuring Costs - Additiona

Restructuring Costs - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Restructuring Cost And Reserve [Line Items]
Restructuring costs	$ 1,005	$ 4,361	$ 1,460	$ 4,551
Water Resources Business Performance Initiative [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs	600		600
Remaining amounts to be incurred	1,500		1,500
FY2016 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs	400		900
Remaining amounts to be incurred	$ 100		100
Total costs incurred			17,100
FY2016 Restructuring Plan [Member] | Operating Segments [Member] | Inliner [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs			100
FY2016 Restructuring Plan [Member] | Operating Segments [Member] | Heavy Civil [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs			400
FY2016 Restructuring Plan [Member] | Operating Segments [Member] | Mineral Services [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs			200
FY2016 Restructuring Plan [Member] | Unallocated Corporate Expenses [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs			$ 200

Restructuring Costs - Schedule

Restructuring Costs - Schedule of Carrying Amount of Accrual for Restructuring Plans (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Restructuring Cost And Reserve [Line Items]
Balance at January 31, 2016	$ 1,213
Total restructuring costs	1,460	$ 3,245
Cash expenditures	(1,452)
Adjustment to liability	35
Balance at July 31, 2016	1,256
Water Resources Business Performance Initiative [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	603
FY2016 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	857
Severance and other personnel-related costs [Member]
Restructuring Cost And Reserve [Line Items]
Balance at January 31, 2016	1,157
Total restructuring costs	397
Cash expenditures	(738)
Adjustment to liability	25
Balance at July 31, 2016	841
Severance and other personnel-related costs [Member] | Water Resources Business Performance Initiative [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	187
Severance and other personnel-related costs [Member] | FY2016 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	210
Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Balance at January 31, 2016	56
Total restructuring costs	1,063
Cash expenditures	(714)
Adjustment to liability	10
Balance at July 31, 2016	415
Other Restructuring [Member] | Water Resources Business Performance Initiative [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	416
Other Restructuring [Member] | FY2016 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	$ 647