Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Consolidated Balance Sheets
Allowance for doubtful accounts	$ 30,418	$ 31,753
Accumulated amortization	$ 93,307	$ 87,073
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	76,732,000	80,309,000
Common stock, shares outstanding	76,732,000	80,309,000