Derivative Instruments - Successor (Details) (USD $)	1 Months Ended		6 Months Ended	12 Months Ended					1 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended			6 Months Ended	12 Months Ended				12 Months Ended				6 Months Ended	12 Months Ended		1 Months Ended
	Sep. 30, 2012 Interest Rate Swap [Member] Successor [Member]	Jul. 31, 2012 Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2011 Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Interest Rate Swap [Member] Successor [Member] Interest_Rate_Swaps	Dec. 31, 2012 Cash Flow Hedges [Member] Successor [Member]	Jul. 31, 2011 Cash Flow Hedges [Member] Successor [Member] Interest_Rate_Swaps	Jul. 31, 2011 Floating-to-fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member] Interest_Rate_Swaps	Jul. 31, 2011 Fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member] Interest_Rate_Swaps	Sep. 30, 2012 LIBOR [Member] Interest Rate Swap [Member] Successor [Member]	Jul. 31, 2012 LIBOR [Member] Interest Rate Swap [Member] Successor [Member]	Jul. 31, 2012 Minimum [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2011 Interest Expense, Net [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Interest Expense, Net [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2011 Change in Fair Value of Derivative Instruments [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Change in Fair Value of Derivative Instruments [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other Long-term Liabilities [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Other Long-term Liabilities [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Products [Member] Successor [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Products [Member] Successor [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Other Long-term Liabilities [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Other Long-term Liabilities [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Propco [Member] Fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Propco [Member] Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Successor [Member] Interest_Rate_Swaps	Dec. 31, 2012 Propco [Member] Cash Flow Hedges [Member] Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Propco [Member] Cash Flow Hedges [Member] Designated as Hedging Instrument [Member] Fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Original Opco [Member] Fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member]	Jun. 16, 2011 Green Valley Ranch Gaming LLC [Member]	Dec. 31, 2010 Green Valley Ranch Gaming LLC [Member]	Dec. 31, 2009 Green Valley Ranch Gaming LLC [Member] Interest Rate Swap [Member]	Sep. 30, 2012 Green Valley Ranch Gaming LLC [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Green Valley Ranch Gaming LLC [Member] Fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Opco [Member] Minimum [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Opco [Member] Cash Flow Hedges [Member] Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Successor [Member]	Dec. 31, 2012 Opco [Member] Cash Flow Hedges [Member] Designated as Hedging Instrument [Member] Fixed Interest Rate [Member] Interest Rate Swap [Member] Successor [Member]
Derivative [Line Items]
Number of derivative instruments held				2		3	3	1															1
Derivative, notional amount							$ 1,300,000,000.0	$ 228,500,000.0
Derivative, lower fixed interest rate (percentage)		1.29%		1.29%
Derivative, higher fixed interest rate (percentage)		2.03%		2.34%
Derivative, description of variable rate basis	LIBOR	LIBOR
Fixed interest rate on debt instruments resulting from interest rate swap																						5.10%			5.10%	5.60%					7.90%			6.60%
Payment to Terminate Derivative Instrument																														3,000,000
Derivative, Variable Interest Rate																																1.25%
Derivative Instruments, Gain Recognized in Other Comprehensive Income (Loss), Effective Portion					28,600,000
Notional amount of interest rate derivatives				1,100,000,000.0																			123,200,000	698,300,000					420,000,000.0				233,000,000.0
Derivative instrument, term for variable interest rate									1 month	1 month
Derivative, fixed interest rate											1.50%																					1.25%
Long-term debt, percentage bearing fixed interest, amount																																	1,100,000,000.0
Gain (loss) on derivatives recognized in income																		0	61,000				61,000				0	(50,550,000)
Derivative liability, fair value																21,140,000	20,047,000			2,746,000	0
Amount of Loss on Derivatives Recognized in Other Comprehensive Income (Effective Portion)			25,546,000	18,918,000
Amount of Loss Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)												5,499,000	12,446,000
Amount of Gain (Loss) on Derivatives Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing)														0	860,000
Derivative Instruments, Loss Recognized in Income					700,000
Estimated gain (loss) expected to be reclassified from accumulated other comprehensive income to income				11,600,000
Derivative gain (loss) reclassification from accumulated other comprehensive income to income, estimate of time to transfer				12 months
Period for Deferred Losses on Cash Flow Hedges to be Reclassified to Earnings					12 months
Derivative liability, termination value				$ 25,900,000