SEGMENT AND GEOGRAPHICAL INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013 item	Jun. 30, 2012	Jun. 30, 2011
SEGMENT AND GEOGRAPHICAL INFORMATION
Number of operating industry segments									1
Revenue and gross margin by segment
Revenues	$ 264,402	$ 259,147	$ 238,339	$ 235,151	$ 245,795	$ 228,540	$ 210,457	$ 194,967	$ 997,039	$ 879,759	$ 758,155
Gross margin									646,046	553,443	484,499
Gaming Equipment
Revenue and gross margin by segment
Revenues									339,842	310,651	246,514
Gross margin									170,629	139,845	112,096
Gaming Operations
Revenue and gross margin by segment
Revenues									404,978	357,417	318,621
Gross margin									282,790	257,737	229,801
Systems
Revenue and gross margin by segment
Revenues									252,219	211,691	193,020
Gross margin									$ 192,627	$ 155,861	$ 142,602