Note 14 - Income Taxes (Detail) - Significant Components of Deferred Income Taxes (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Deferred Tax Assets
Reserves	$ 106.4	$ 94.8
Jackpot payment timing difference	134.3	134.4
Share-based compensation	28.9	27.9
Net operating loss carry forwards	45.4	44.4
Goodwill and intangibles	44.8	25.8
Capital loss carryover	26.2	26.7
Other	14.4	11.0
Total deferred income tax assets	400.4	365.0
Valuation allowance	(74.0)	(65.5)
Total deferred income tax assets, net	326.4	299.5
Deferred Tax Liabilities
Interest expense on convertible debt	(39.4)	(36.9)
Property, plant and equipment	(31.4)	(21.2)
Intangibles	(42.2)	(47.9)
Other	(13.3)	(12.5)
Total deferred income tax liabilities	(126.3)	(118.5)
Net Deferred Income Tax Assets	$ 200.1	$ 181.0