Guarantee	3 Months Ended
Mar. 31, 2012
Guarantee [Abstract]
Guarantee	(13) Guarantee In accordance with authoritative guidance related to guarantees, the Company has assigned an estimated value of $2.6 million at March 31, 2012 and December 31, 2011, which is reflected in other long-term liabilities, related to decommissioning activities in connection with oil and gas properties acquired by SPN Resources prior to its sale to Dynamic Offshore. The Company believes that the likelihood of being required to perform these guarantees is remote. In the unlikely event that Dynamic Offshore defaults on the decommissioning liabilities existing at the closing date, the total maximum potential obligation under these guarantees is estimated to be approximately $148.4 million, net of the contractual right to receive payments from third parties, which is approximately $24.6 million, as of March 31, 2012. The total maximum potential obligation will decrease over time as the underlying obligations are fulfilled.

The entire disclosure for each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties.

No definition available.

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