Document and Entity Information	3 Months Ended
Sep. 30, 2011	Oct. 31, 2011
Document and Entity Information
Entity Registrant Name	BALLY TECHNOLOGIES, INC.
Entity Central Index Key	0000002491
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		43,344,000
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1

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