Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Trade accounts and notes receivable, allowance for doubtful accounts	$ 1,904	$ 1,037
Property, plant and equipment, accumulated depreciation	$ 259,223	$ 238,688
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value		$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	137,506,834	135,820,588
Common stock, shares outstanding	137,506,834	135,820,588