Long-term Debt - Narrative Following Schedule (Details) (USD $)	Sep. 30, 2013	Mar. 02, 2013
Debt Instrument [Line Items]
Debt instrument, stated interest rate (percent)	7.50%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 350,000,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		1,625,000,000.0
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount		500,000,000
Debt instrument, stated interest rate (percent)	7.50%	7.50%
Propco [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount		931,300,000
Opco [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount		$ 575,000,000