Fair Value Measurements (Fair Value of Assets and Liabilities Measured on Recurring Basis) (Details) (Successor [Member], Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds (Note 6)	$ 3,541	$ 11,727
Cash equivalents	66,782	14,370
Estimate of Fair Value Measurement [Member] | Term Loan [Member] | 7 Year Senior Secured Term Loan Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	1,063,255	1,052,363
Estimate of Fair Value Measurement [Member] | Senior Notes [Member] | 7.375% Senior Notes Due 2020 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	507,150	484,488
Financial Liabilities Fair Value Disclosure	1,189
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds (Note 6)	0	0
Cash equivalents	66,782	14,370
Level 1 [Member] | Term Loan [Member] | 7 Year Senior Secured Term Loan Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	0	0
Level 1 [Member] | Senior Notes [Member] | 7.375% Senior Notes Due 2020 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	0	0
Financial Liabilities Fair Value Disclosure	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds (Note 6)	3,541	11,727
Cash equivalents	0	0
Level 2 [Member] | Term Loan [Member] | 7 Year Senior Secured Term Loan Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	1,063,255	1,052,363
Level 2 [Member] | Senior Notes [Member] | 7.375% Senior Notes Due 2020 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	507,150	484,488
Financial Liabilities Fair Value Disclosure	1,189
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds (Note 6)	0	0
Cash equivalents	0	0
Level 3 [Member] | Term Loan [Member] | 7 Year Senior Secured Term Loan Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	0	0
Level 3 [Member] | Senior Notes [Member] | 7.375% Senior Notes Due 2020 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	0	0
Financial Liabilities Fair Value Disclosure	$ 0