Contingent Consideration, Period Of Evaluation

No definition available.

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- Definition

Fair Value Input, Commodity Spot Price

+ References

No definition available.

+ Details

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- Definition

Fair Value Inputs, Crude Oil Forward Curve Slope

+ References

No definition available.

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- Definition

Value of input used to measure derivative asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

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.

+ Details

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- Definition

Cash receipts from customers during the current period which are usually for sales of goods and services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585

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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS - Derivatives (Details)		1 Months Ended	6 Months Ended	12 Months Ended
	May 23, 2016 USD ($) $ / bbl	Jan. 31, 2017 USD ($)	Jun. 30, 2017	Dec. 31, 2016 USD ($) $ / bbl	Dec. 31, 2017 USD ($)
Rowan Relentless [Member]
Derivative [Line Items]
Contingent payments, period of evaluation	12 months		12 months
Contingent payment derivative, fair value	$ 6,200,000
Derivative [Member] \| Rowan Relentless [Member]
Derivative [Line Items]
WTI spot price (in usd per bbl) \| $ / bbl	47.48			53.72
Slope of the WTI forward curve	5.50%			11.205%
Freeport-McMoRan [Member]
Derivative [Line Items]
Proceeds from contingent payment provision settlement		$ 6,000,000
Prepaid Expenses and Other Current Assets [Member]
Derivative [Line Items]
Contingent payment derivative, fair value				$ 6,100,000	$ 0.00
Measurement Input, Discount Rate [Member] \| Derivative [Member] \| Rowan Relentless [Member]
Derivative [Line Items]
Derivative Asset, Measurement Input	0.00765			0.00734
Measurement Input, Price Volatility [Member] \| Derivative [Member] \| Rowan Relentless [Member]
Derivative [Line Items]
Derivative Asset, Measurement Input	0.375			0.28557