LONG-TERM DEBT - Credit Facilities (Details) (USD $)																																										3 Months Ended	0 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013 Credit Facility	Dec. 31, 2013 Credit Facility Bank Credit Facility, due March 2015	Sep. 30, 2013 Credit Facility Bank Credit Facility, due March 2015	Mar. 06, 2012 Credit Facility Bank Credit Facility, due March 2015	Dec. 31, 2013 Credit Facility First Lien, Second Out Term Loan Facility	Sep. 30, 2013 Credit Facility First Lien, Second Out Term Loan Facility	Mar. 06, 2012 Credit Facility First Lien, Second Out Term Loan Facility	Dec. 31, 2013 Credit Facility Bank Credit Facility - Revolving Facility	Sep. 30, 2013 Credit Facility Bank Credit Facility - Revolving Facility	Dec. 31, 2013 Credit Facility Bank Credit Facility - Revolving Facility Base Rate Revolving Loans	Dec. 31, 2013 Credit Facility Bank Credit Facility - Revolving Facility Eurodollar Rate Revolving Loans	Dec. 31, 2013 Credit Facility Bank Credit Facility - Term Loan A Facility	Sep. 30, 2013 Credit Facility Bank Credit Facility - Term Loan A Facility	Dec. 31, 2013 Credit Facility Bank Credit Facility - Term Loan A Facility Eurodollar Rate Term Loans	Dec. 31, 2013 Credit Facility Bank Credit Facility - Term Loan B Facility	Sep. 30, 2013 Credit Facility Bank Credit Facility - Term Loan B Facility	Dec. 31, 2013 Credit Facility Bank Credit Facility - Term Loan B Facility Eurodollar Rate Term Loans	Dec. 31, 2013 Credit Facility Line of Credit	Nov. 19, 2013 Credit Facility Line of Credit	Sep. 30, 2013 Credit Facility Line of Credit	Dec. 31, 2013 Credit Facility Downs Lodging Credit Facility	Sep. 30, 2013 Credit Facility Downs Lodging Credit Facility	Dec. 31, 2013 Credit Facility Downs Lodging Credit Facility Downs Lodging, LLC	Sep. 30, 2013 Credit Facility Downs Lodging Credit Facility Downs Lodging, LLC	Jul. 31, 2012 Credit Facility Downs Lodging Credit Facility Downs Lodging, LLC	Jul. 16, 2012 Credit Facility Downs Lodging Credit Facility Downs Lodging, LLC	Mar. 06, 2012 Credit Facility Letter of Credit Bank Credit Facility, due March 2015	Nov. 19, 2013 Credit Facility Senior Secured Notes Senior Secured Credit Facilities	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility Minimum	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility Maximum	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility Federal Funds Rate	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility One-Month LIBOR	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility LIBOR Minimum	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan A Facility LIBOR Maximum	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan B Facility	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan B Facility LIBOR	Nov. 19, 2013 Credit Facility Senior Secured Notes Bank Credit Facility - Term Loan B Facility Base Rate	Nov. 19, 2013 Credit Facility Revolving Credit Facility Senior Secured Credit Facilities	Dec. 31, 2013 Credit Facility Revolving Credit Facility Bank Credit Facility - Term Loan B Facility	Nov. 19, 2013 Credit Facility Revolving Credit Facility Bank Credit Facility - Term Loan B Facility Minimum	Nov. 19, 2013 Credit Facility Revolving Credit Facility Bank Credit Facility - Term Loan B Facility Maximum	Nov. 19, 2013 Credit Facility Bank Credit Facility - Term Loan A Facility Senior Secured Credit Facilities LIBOR
Debt Instrument [Line Items]
Loan face amount									$ 225,000,000.0																		$ 45,000,000			$ 955,000,000.0	$ 125,000,000							$ 730,000,000			$ 100,000,000
Credit facility outstanding						400,000,000.0														9,400,000
Borrowing capacity																					16,500,000								75,000,000.0
Debt outstanding	1,745,491,000	1,682,312,000		0	393,000,000		0	221,995,000		14,000,000	0	4,000,000	10,000,000	124,358,000	0		720,101,000	0		9,353,000		0	45,000,000	45,000,000
Variable rate, leverage-based margin																																2.50%	3.50%			3.50%	4.50%
Amortization of principal, percentage, year one																															5.00%
Amortization of principal, percentage, year two																															7.50%
Amortization of principal, percentage, year three																															10.00%
Amortization of principal, percentage, annual																																						1.00%
Variable rate, measurement period																																													1 month
Variable rate basis, minimum																																							1.00%	2.00%
Variable rate at period end												3.25%	0.17%			0.25%			1.00%
Letters of credit issued										2,800,000
Remaining borrowing capacity										73,800,000
Basis spread on variable rate												3.25%	4.25%			4.25%			4.50%															0.50%	1.00%				4.50%	3.50%
Fee assessed on unused revolving credit																																										0.50%	0.375%	0.50%
Accrued interest	32,634,000	23,296,000						1,100,000												24,000		0			0	0
Accrued interest including commitment fees			$ 895,000		$ 61,000
Interest rate																												13.00%
Interest due monthly																												10.00%
Interest due at maturity																												3.00%
Exit fee																												3.00%