CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 29, 2013	Dec. 29, 2012
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts and customer credits	$ 71,976	$ 62,886
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	36,503,845	36,477,506
Common stock, shares outstanding	36,503,845	36,477,506