SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies - Top Customers (Details)	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2012 Successor	Dec. 31, 2013 Successor	Mar. 25, 2012 Predecessor	Dec. 31, 2011 Predecessor	Dec. 31, 2012 BG LNG Services Successor	Dec. 31, 2013 BG LNG Services Successor	Mar. 25, 2012 BG LNG Services Predecessor	Dec. 31, 2011 BG LNG Services Predecessor	Dec. 31, 2012 ProLiance Successor	Dec. 31, 2013 ProLiance Successor	Mar. 25, 2012 ProLiance Predecessor	Dec. 31, 2011 ProLiance Predecessor	Dec. 31, 2012 Other Top 10 Customers Successor	Dec. 31, 2013 Other Top 10 Customers Successor	Mar. 25, 2012 Other Top 10 Customers Predecessor	Dec. 31, 2011 Other Top 10 Customers Predecessor	Dec. 31, 2012 Remaining Customers Successor	Dec. 31, 2013 Remaining Customers Successor	Mar. 25, 2012 Remaining Customers Predecessor	Dec. 31, 2011 Remaining Customers Predecessor
Entity-Wide Revenue, Major Customer, Percentage	100.00%	100.00%	100.00%	100.00%	31.00%	30.00%	30.00%	30.00%	12.00%	13.00%	13.00%	13.00%	20.00%	24.00%	24.00%	21.00%	37.00%	33.00%	33.00%	36.00%