Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

 v2.3.0.11
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands
Jun. 30, 2011
Dec. 31, 2010
Jun. 30, 2010
Condensed Consolidated Balance Sheets      
Allowance for accounts receivable $ 6,718 $ 7,098 $ 6,549
Accumulated depreciation for property, plant and equipment $ 264,615 $ 250,999 $ 233,151
Preferred stock, shares authorized 10,000 10,000 10,000
Preferred stock, shares issued 0 0 0
Preferred stock, shares outstanding 0 0 0
Common stock, no par value      
Common stock, shares authorized 125,000 125,000 125,000
Common stock, shares issued 34,001 33,683 33,823
Common stock, shares outstanding 34,001 33,683 33,823