Subsequent Event	12 Months Ended
Dec. 31, 2011
Subsequent Event [Abstract]
Subsequent Event	21. Subsequent Event In January 2012, the Mako, a 175 class liftboat in Nigeria, was engulfed by a fire that originated on a third-party rig, the KS Endeavor (See Note 18).

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

No definition available.

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