Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 8,009	$ 7,313
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.004	$ 0.004
Common stock, shares authorized	350,000,000	350,000,000
Common stock, shares issued	171,005,577	169,752,781
Common stock, shares outstanding	143,057,967	142,021,032
Treasury stock, shares held	27,947,612	27,731,749