Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Long Term Debt Instruments [Abstract]
Carrying Amount	$ 914,590		$ 918,122
Fair Value	921,258	[1]	973,844	[1]
New Term Loan, due 2019
Long Term Debt Instruments [Abstract]
Carrying Amount	614,590		618,122
Fair Value	619,368	[1]	655,844	[1]
Discount on New Term Loan	(14,210)	[2]	(17,078)	[2]
Notes, 8.75%, due 2019
Long Term Debt Instruments [Abstract]
Carrying Amount			300,000
Fair Value	301,890	[1]	318,000	[1]
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term interest rate swap liability (a)	0	[3]	0	[3]
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term interest rate swap liability (a)	2,742	[3]	1,005	[3]
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term interest rate swap liability (a)	$ 0	[3]	$ 0	[3]

[1] The Company estimated fair value based on market prices of the Company's debt securities at the balance sheet date, which falls within Level 2 of the fair value hierarchy.

[2] The $14.2 million and $17.1 million discount on the Term Loan (as defined below) as of December 31, 2014 and December 31, 2013, respectively, is being amortized using the effective interest method over the life of the Term Loan.

[3] The fair value is determined using valuation models which rely on the expected LIBOR based yield curve and estimates of counterparty and the Company’s non-performance risk. Because each of these inputs are directly observable or can be corroborated by observable market data, the Company has categorized these interest rate swaps as Level 2 within the fair value hierarchy.