Note 16 - Business Segments (Detail) - Business Segment Information (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues	$ 532.8	$ 489.0	$ 1,519.6	$ 1,417.2
Gaming operations	301.2	267.4	866.2	790.1
Product sales	231.6	221.6	653.4	627.1
Gross profit	302.6	288.6	868.2	840.6
Gaming operations	178.2	164.6	520.2	490.9
Product sales	124.4	124.0	348.0	349.7
Operating income (expenses)	95.5	140.8	313.5	389.1
North America [Member]
Revenues	416.0	364.0	1,154.2	1,083.7
Gaming operations	255.9	228.1	730.2	679.0
Product sales	160.1	135.9	424.0	404.7
Gross profit	243.9	214.2	671.4	640.0
Gaming operations	154.2	138.9	435.3	414.2
Product sales	89.7	75.3	236.1	225.8
Operating income (expenses)	103.7	122.5	319.2	357.2
International [Member]
Revenues	116.8	125.0	365.4	333.5
Gaming operations	45.3	39.3	136.0	111.1
Product sales	71.5	85.7	229.4	222.4
Gross profit	58.7	74.4	196.8	200.6
Gaming operations	24.0	25.7	84.9	76.7
Product sales	34.7	48.7	111.9	123.9
Operating income (expenses)	16.6	43.5	76.9	105.1
Corporate [Member]
Operating income (expenses)	$ (24.8)	$ (25.2)	$ (82.6)	$ (73.2)