EARNINGS PER SHARE (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
EARNINGS PER SHARE
Net income attributable to Bally Technologies, Inc.	$ 12,161	$ 27,444	$ 21,211	$ 37,784	$ 37,337	$ 38,449	$ 33,126	$ 32,532	$ 98,600	$ 141,444	$ 101,148
Weighted average shares outstanding									38,489	40,120	42,985
Dilutive effect of:
Stock options, Restricted Stock Units ("RSU") and restricted stock (in shares)									649	872	1,435
Weighted average diluted shares outstanding (in shares)									39,138	40,992	44,420
Basic and diluted earnings per share attributable to Bally Technologies, Inc.
Basic earnings per share (in dollars per share)	$ 0.32	$ 0.71	$ 0.55	$ 0.98	$ 0.96	$ 0.95	$ 0.82	$ 0.80	$ 2.56	$ 3.53	$ 2.35
Diluted earnings per share (in dollars per share)	$ 0.31	$ 0.70	$ 0.54	$ 0.97	$ 0.95	$ 0.93	$ 0.80	$ 0.77	$ 2.52	$ 3.45	$ 2.28
Stock options, RSU and restricted stock having anti-dilutive effect in calculation of diluted earnings per share (in shares)										70	574