Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v2.3.0.15
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Condensed Consolidated Balance Sheets [Abstract]      
Allowance for accounts receivable $ 7,414 $ 7,098 $ 9,774
Accumulated depreciation for property, plant and equipment $ 266,892 $ 250,999 $ 246,228
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 33,635 33,683 33,635
Common stock, shares outstanding 33,635 33,683 33,635