Adjusted consolidated leverage ratio actual.

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- Definition

Consolidated fixed charge coverage ratio minimum collateral release period.

+ References

No definition available.

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Consolidated interest coverage ratio actual.

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No definition available.

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Consolidated interest coverage ratio covenant.

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No definition available.

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Consolidated leverage ratio maximum.

+ References

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Consolidated leverage ratio maximum collateral release period.

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No definition available.

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Consolidated tangible net worth actual.

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No definition available.

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Consolidated tangible net worth covenant.

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No definition available.

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- Definition

Debt instrument basis spread on variable rate libor loans.

+ References

No definition available.

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Debt instrument basis spreadon base rate.

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No definition available.

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Debt instrument convertible face amount for conversion purposes.

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No definition available.

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Balance Type:	credit
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- Definition

Line of credit minimum cash balance.

+ References

No definition available.

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Balance Type:	credit
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Long term debt maturities repayments of principal after year four.

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No definition available.

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Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The price per share of the conversion feature embedded in the debt instrument.

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-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Paragraph 7
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-Paragraph 3
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- Definition

Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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- Definition

Face (par) amount of debt instrument at time of issuance.

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-SubTopic 30
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-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

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- Definition

Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

+ References

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Amount of increase (decrease) of the credit facility.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Period Type:	duration

- Definition

The effective interest rate at the end of the reporting period.

+ References

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Paragraph 4
-Subparagraph (b)(3)
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-Subparagraph (SX 210.5-02(22))
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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-SubTopic 10
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-Subparagraph (b)
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Balance Type:	debit
Period Type:	duration

- Details

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Long-Term Debt and Credit Arrangements - Additional Information (Details) - USD ($)		6 Months Ended		12 Months Ended
	Jun. 14, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	May 31, 2018
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in the Remainder of 2018		$ 204,500,000
Long-term Debt, Maturities, Repayments of Principal in 2019		47,500,000
Long-term Debt, Maturities, Repayments of Principal in 2020		7,500,000
Long-term Debt, Maturities, Repayments of Principal in 2021		7,500,000
Long-term Debt, Maturities, Repayments of Principal in 2022		7,500,000
Long-term Debt, Maturities, Repayments of Principal , thereafter		215,300,000
Long-term debt		280,710,000	$ 227,114,000	$ 178,453,000
Current maturities of long-term debt		207,982,000	14,796,000	46,048,000
Line of credit facility, maximum borrowing capacity		500,000,000
Line of Credit Facility, Current Borrowing Capacity		300,000,000
Line of Credit, Current		150,000,000
Line of Credit, minimum cash balance		150,000,000
Line of Credit Facility, Increase (Decrease), Net		100,000,000
Letters of Credit Outstanding, Amount		33,000,000		0
Proceeds from long-term debt		$ 105,250,000	0
Consolidated Leverage Ratio, Maximum		0.0300
Consolidated Interest Coverage Ratio, Actual		0.2392
Consolidated Interest Coverage Ratio, Covenant		0.0400
Layne Christensen Company [Member]
Debt Instrument [Line Items]
Acquisition purchase price	$ 349,840,000
Minimum [Member]
Debt Instrument [Line Items]
Consolidated leverage ratio financial covenant		0.0300
Acquisition purchase price		$ 100,000,000
Maximum [Member]
Debt Instrument [Line Items]
Consolidated leverage ratio financial covenant		0.0350
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 200,000,000
Line of Credit Facility, Remaining Borrowing Capacity		350,000,000
Proceeds from long-term debt		99,000,000	30,000,000	55,000,000
Term Loan [Member]
Debt Instrument [Line Items]
Current maturities of long-term debt		7,500,000	5,000,000	6,200,000
Long-term debt		$ 142,500,000	87,500,000	83,800,000
Debt instrument redemption price percentage		1.25%
8.0 % Convertible Notes [Member]
Debt Instrument [Line Items]
Common stock conversion rate		23.1305
Common stock conversion principal amount		$ 1,000
Conversion price per share		$ 43.23
8.0 % Convertible Notes [Member] \| Layne Christensen Company [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	8.00%	8.00%
Debt instrument, fair value	$ 121,600,000
Debt instrument frequency of periodic payment		convertible notes that have an interest rate of 8.0% per annum, payable semi-annually on May 1 and November 1 (“8.0% Convertible Notes”).
Debt instrument maturity, Ending date	Aug. 15, 2018
Debt Instrument, maturity date, description		The 8.0% Convertible Notes mature on May 1, 2019; however, if any of the then outstanding 4.25% Convertible Notes remain outstanding on August 15, 2018, the 8.0% Convertible Notes will mature on August 15, 2018 (“Maturity Date”).
Debt instrument maturity date	May 01, 2019
Debt instrument, extended maturity date	Aug. 15, 2018
Senior Notes [Member] \| 2019 Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 80,000,000	120,000,000	80,000,000
Debt instrument, interest rate, stated percentage		6.11%
Long-term debt		$ 40,000,000	110,000,000	$ 40,000,000
Current maturities of long-term debt		40,000,000	10,000,000
Senior Notes [Member] \| 2019 Notes [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in the Remainder of 2018		0	$ 30,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		$ 218,000,000
Consolidated leverage ratio financial covenant		0.0210
Debt Instrument, Basis Spread on Variable Rate, LIBOR Loans		1.63%
Debt Instrument, Basis Spread on Variable Rate		0.63%
Derivative, Variable Interest Rate					2.76%
Consolidated Fixed Charge Coverage Ratio, Minimum, Collateral Release Period		1.25
Consolidated Leverage Ratio, Maximum, Collateral Release Period		2.50
Consolidated Tangible Net Worth, Actual		$ 1,000,000,000
Consolidated Tangible Net Worth, Covenant		$ 757,300,000
Line of Credit [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate at Period End		3.96%
Line of Credit [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate at Period End		5.63%
Convertible Notes [Member] \| 8.0 % Convertible Notes [Member] \| Layne Christensen Company [Member]
Debt Instrument [Line Items]
Current maturities of long-term debt		$ 90,900,000
Additional paid-in capital		$ 30,700,000
Convertible Notes [Member] \| 4.25% Notes due 2018 [Member]
Debt Instrument [Line Items]
Common stock conversion rate		11.8012
Common stock conversion principal amount		$ 1,000
Conversion price per share		$ 84.74
Convertible Notes [Member] \| 4.25% Notes due 2018 [Member] \| Layne Christensen Company [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.25%
Current maturities of long-term debt		$ 69,900,000
Debt instrument, fair value	$ 69,900,000
Debt instrument frequency of periodic payment		convertible notes that have an interest rate of 4.25% per annum, payable semi-annually in arrears on May 15 and November 15 (“4.25% Convertible Notes”).
Debt instrument maturity, Beginning date		May 31, 2015
Debt instrument maturity, Ending date		Nov. 30, 2015
Debt instrument, extended maturity date		Nov. 30, 2015