CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2012	Jun. 30, 2011
LIABILITIES AND STOCKHOLDERS' EQUITY
Series D redeemable convertible preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Series D redeemable convertible preferred stock, authorized (in shares)	3,636	3,636
Series D redeemable convertible preferred stock, issued (in shares)	0	0
Series D redeemable convertible preferred stock, outstanding (in shares)	0	0
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized (in shares)	210,000,000	210,000,000
Common stock, issued (in shares)	96,663,580	94,939,400
Common stock, outstanding (in shares)	93,465,955	94,238,370
Treasury stock (in shares)	3,197,625	701,030