Related Party Transactions	6 Months Ended
Related Party Transactions	Jun. 30, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Former Chairman and CEO Severance. Included in other current liabilities and other long-term obligations in the accompanying unaudited condensed consolidated balance sheets as of June 30, 2015 and December 31, 2014 are amounts totaling $2.4 million and $3.1 million, respectively, due to the Company’s former Chairman and CEO under the terms of his employment agreement. Such amounts are to be paid in monthly installments through December 2016. See Note 11 for discussion of the stockholder receivable due from the Company’s former Chairman and CEO. 2014 Divestiture. See Note 2 for discussion of the sale of the Gulf Properties to Fieldwood and the Company’s guarantee on behalf of Fieldwood of certain associated plugging and abandonment obligations associated with the Gulf Properties. Fieldwood is a portfolio company of Riverstone Holdings LLC, affiliates of which own a significant number of shares of the Company’s common stock. Acquisition of Ownership Interest. In March 2014, the Company purchased the additional ownership interest owned by its partner in GRLP and Genpar, which was deemed a related party at the time. See Note 3 for additional discussion.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.