SEGMENT AND GEOGRAPHICAL INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012 revenuesource	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012 revenuesource	Jun. 30, 2011	Jun. 30, 2010
SEGMENT AND GEOGRAPHICAL INFORMATION
Number of revenue sources	3								3
Revenue and gross margin by segment
Revenues	$ 245,795	$ 228,540	$ 210,457	$ 194,967	$ 213,680	$ 190,941	$ 182,726	$ 170,808	$ 879,759	$ 758,155	$ 778,191
Gross margin									553,443	484,499	498,386
Gaming Equipment
Revenue and gross margin by segment
Revenues									310,651	246,514	273,718
Gross margin									139,845	112,096	138,000
Gaming Operations
Revenue and gross margin by segment
Revenues									357,417	318,621	286,950
Gross margin									257,737	229,801	203,844
Systems
Revenue and gross margin by segment
Revenues									211,691	193,020	217,523
Gross margin									$ 155,861	$ 142,602	$ 156,542