Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 16,456	$ 12,600
Adjustments to reconcile net income to cash provided by operating activities:
Amortization and depreciation	16,107	19,202
Accretion of contract rights	3,955	3,829
Share-based compensation	1,900	1,500
Other non-cash items	1,307	800
Deferred income taxes	171	0
Interest income from imputed interest	(265)	(797)
Changes in operating assets and liabilities	(4,524)	491
NET CASH PROVIDED BY OPERATING ACTIVITIES	35,062	37,635
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment and leased gaming equipment	(25,534)	(19,532)
Acquisition of intangible assets	(4,070)	(2,719)
Advances under development and placement fee agreements	(8,535)	(13,365)
Repayments under development agreements	7,555	7,479
NET CASH USED IN INVESTING ACTIVITIES	(30,584)	(28,137)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	8,771	4,983
Principal payments of long term debt	(1,850)	(1,850)
Proceeds from capital leases	0	366
Principal payments of capital leases	0	34
Purchase of treasury stock	(3,668)	(1,884)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	3,253	1,581
EFFECT OF EXCHANGE RATES ON CASH	0	(85)
Net increase in cash and cash equivalents	7,731	10,994
Cash and cash equivalents, beginning of period	73,755	46,710
Cash and cash equivalents, end of period	81,486	57,704
SUPPLEMENTAL CASH FLOW DATA:
Interest paid	467	571
Income tax paid (refunded), net	2,823	(946)
NON-CASH TRANSACTIONS:
Change in contract rights resulting from imputed interest on development agreement notes receivable	308	65
Transfer of leased gaming equipment to inventory	$ 1,323	$ 2,496