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Basis of Presentation and Significant Accounting Policies (Supplemental Cash Flow Data) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 16, 2013	Dec. 31, 2012
Successor
Supplemental disclosures to the statements of cash flows [Line Items]
Cash payments for interest, net of amounts capitalized	$ 0	$ 95,915
Cash payments for income taxes	0	0
Accrued capital expenditures	77,001	59,884
Predecessor
Supplemental disclosures to the statements of cash flows [Line Items]
Cash payments for interest, net of amounts capitalized			87,495	64,602
Cash payments for income taxes			622	4,227
Accrued capital expenditures			$ 70,866	$ 98,020