Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Jun. 30, 2011
Current assets
Accounts receivable, allowances	$ 7,376	$ 7,016
Noncurrent asset
Less accumulated depreciation	$ 146,132	$ 143,930
Shareholders' Equity
Preferred stock, par value
Preferred stock, shares authorized	2,500	2,500
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value
Common stock, shares authorized	80,000	80,000
Common stock, shares issued	54,213	54,213
Treasury shares, at cost	12,220	11,611