Development and Placement Fee Agreements (Details) (USD $)	0 Months Ended	6 Months Ended			6 Months Ended
	Mar. 07, 2013 casino units	Mar. 31, 2013	Nov. 19, 2012 units	Sep. 30, 2012	Mar. 31, 2013 Minimum	Mar. 31, 2013 Maximum	Mar. 31, 2013 WinStar World Casino and Riverwind Casino units	Jan. 18, 2012 WinStar World Casino and Riverwind Casino units
Development and Placement Fee Agreements [Line Items]
Term of agreement	50 months				12 months	83 months
Number of units with extended contract term (units)								1,709
Percentage of total units with extended contract terms (percent)							85.00%
Number of units placed (units)								2,009
Contract term extension, number of years							3 years 6 months
Unit placement fees paid to Chickasaw Nation	$ 2,000,000						$ 13,200,000
Reduction of revenue, number of units (units)							1,000
Number of unit placements (units)	201		150
Number of casino locations (casinos)	6
Unit placement period		68 months
Refundable payment amount			6,500,000
Included in:
Notes receivable, net		7,083,000		8,156,000
Intangible assets – contract rights, net of accumulated amortization		$ 28,914,000		$ 30,551,000