Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 34,934	$ 28,174	$ 5,677
Adjustments to reconcile net income to cash provided by operating activities:
Amortization and depreciation	34,846	38,270	40,957
Accretion of contract rights	8,468	7,700	7,210
Share-based compensation	3,926	3,418	1,532
Other non-cash items	1,501	1,405	1,404
Deferred income taxes	6,662	(4,346)	0
Interest income from imputed interest	(376)	(1,292)	(2,333)
Changes in operating assets and liabilities
Total accounts and notes receivable	(8,463)	(59)	(3,137)
Federal and state income tax receivable	6,688	(102)	19,516
Inventory	(5,386)	(86)	(4,056)
Current liabilities	126	4,544	4,612
Other current and long-term assets and long-term liabilities	3,983	(2,529)	(2,803)
Tax benefit from exercise of stock options	(10,396)	(554)	0
NET CASH PROVIDED BY OPERATING ACTIVITIES	76,513	74,543	68,579
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment and leased gaming equipment	(48,624)	(45,220)	(37,376)
Acquisition of intangible assets	(9,260)	(6,102)	(4,850)
Advances under development and placement fee agreements	(8,535)	(15,575)	(2,951)
Repayments under development agreements	7,749	15,846	14,983
NET CASH USED IN INVESTING ACTIVITIES	(58,670)	(51,051)	(30,194)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	9,176	8,733	3,944
Tax benefit from exercise of stock options	10,396	554	0
Principal payments of long term debt	(3,700)	(3,700)	(7,625)
Proceeds from revolving lines of credit	0	0	6,875
Payments on revolving lines of credit	0	0	(6,875)
Proceeds from capital leases	0	894	0
Principal payments of capital leases	0	(894)	0
Purchase of treasury stock	(4,838)	(1,884)	(10,036)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	11,034	3,703	(13,717)
EFFECT OF EXCHANGE RATES ON CASH	0	(150)	250
Net increase in cash and cash equivalents	28,877	27,045	24,918
Cash and cash equivalents, beginning of period	73,755	46,710	21,792
Cash and cash equivalents, end of period	102,632	73,755	46,710
SUPPLEMENTAL CASH FLOW DATA:
Interest paid	(1,083)	(1,296)	(2,877)
Income tax (paid) refunded, net	(4,116)	561	18,796
NON-CASH TRANSACTIONS:
Change in contract rights resulting from imputed interest on development agreement notes receivable	375	(22)	64
Transfer of leased gaming equipment to inventory	$ 3,570	$ 5,085	$ 1,164