Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Consolidated Balance Sheets
Allowance for doubtful accounts	$ 31,753	$ 32,282
Accumulated amortization	$ 87,073	$ 84,885
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	80,309,000	80,805,000
Common stock, shares outstanding	80,309,000	80,805,000