Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Long Term Debt Instruments [Abstract]
Carrying Amount	$ 918,122		$ 957,000
Fair Value	973,844	[1]	929,500	[1]
New Term Loan, due 2019
Long Term Debt Instruments [Abstract]
Carrying Amount	618,122	[2]	0	[2]
Fair Value	655,844		0	[1],[2]
Term Loans	635,200		0
Discount on New Term Loan	(17,078)	[3]	0	[3]
Notes, 8.75%, due 2019
Long Term Debt Instruments [Abstract]
Carrying Amount			0
Fair Value	318,000	[1]	0	[1]
Old Term Loan, repaid February 2013
Long Term Debt Instruments [Abstract]
Carrying Amount			957,000
Fair Value	0	[1]	929,500	[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
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term interest rate swap liability (a)	1,005
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term interest rate swap liability (a)	$ 0

[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 carrying amount of the New Term Loan is net of the unamortized discount of $17.1 million.

[3] The $17.1 million discount on the New Term Loan (as defined below) is being amortized using the effective interest method over the term of the New Term Loan (as defined below) due 2019.