Income Taxes (Summary of Income Tax Contingencies) (Details) (USD $)	0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 16, 2013	Dec. 31, 2012
Successor
Income Tax Contingency [Line Items]
Unrecognized tax benefits at beginning of period	$ 0	$ 0
Increases for positions taken in current year	0	0
Increases (decreases) for positions taken in a prior year	0	0
Decreases for settlements with taxing authorities	0	0
Decreases for lapses in the applicable statute of limitations	0	0
Unrecognized tax benefits at end of period	0	0
Predecessor
Income Tax Contingency [Line Items]
Unrecognized tax benefits at beginning of period			22,553,000	2,864,000
Increases for positions taken in current year			50,000	21,000
Increases (decreases) for positions taken in a prior year				20,458,000
Increases (decreases) for positions taken in a prior year			(635,000)
Decreases for settlements with taxing authorities			0	0
Decreases for lapses in the applicable statute of limitations			(1,862,000)	(790,000)
Unrecognized tax benefits at end of period			$ 20,106,000	$ 22,553,000