Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data	Oct. 02, 2011	Dec. 31, 2010
ASSETS
Allowances for accounts receivable	$ 7,208	$ 9,701
Stockholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000	2,000
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,300,000	1,300,000
Common stock, shares outstanding	563,347	615,191