Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 30, 2013	Dec. 29, 2012
Consolidated Balance Sheets [Abstract]
Allowance for doubtful accounts and customer credits	$ 67,656	$ 62,886
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	36,479,128	36,477,506
Common stock, shares outstanding	36,479,128	36,477,506