Number Of Equipments Acquired

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

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- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 805

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- Definition

Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

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-Section 50

-Paragraph 3

-Subparagraph (a)(1)

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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Business Acquisitions (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended				12 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 C Lift L L C [Member]	Jun. 06, 2013 C Lift L L C [Member]	Jun. 06, 2013 C Lift L L C [Member] Liftboats [Member]	Dec. 31, 2012 Pantagro Acquisition [Member] [Member]	Jun. 25, 2012 Pantagro Acquisition [Member] [Member]	Dec. 31, 2012 Superior Energy Services, LLC [Member]	Mar. 30, 2012 Superior Energy Services, LLC [Member] Liftboats [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			50.00%
Cash Acquired from Acquisition	$ 2.2
Payments to Acquire Businesses, Gross		12.7			0.2		142.5
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred					0.2
Equity Method Investment, Ownership Percentage			100.00%			95.00%
Business Combination, Consideration Transferred					$ 0.4
Number Of Equipments Acquired				2				18