Sale and Leaseback Transaction	3 Months Ended
Sale and Leaseback Transaction	Mar. 31, 2012
Sale and Leaseback Transaction [Abstract]
Sale and Leaseback Transaction	Note 11. Sale and Leaseback Transaction On February 22, 2012, we completed a sale and leaseback transaction with Wells Fargo Bank Northwest, National Association, of our 2007-built PCTC, the Green Bay. The transaction generated gross proceeds of $59.0 million, which we used to pay down debt of $54.5 million. We are leasing the vessel back under a ten year lease agreement with early buyout options that can be exercised in 2017 and 2019. The sale resulted in a gain of $14.9 million, which has been recorded as a deferred liability on the balance sheet and will be recognized over the term of the lease. Please refer to our Current Report Form 8-K dated February 22, 2012 for further information.

- Definition

The entire disclosure for sale leaseback transactions. Includes the elements of a transaction involving the sale of property to another party and the lease of the property back to the seller.

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