CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts and customer credits	$ 69,990	$ 56,512
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	36,481,324	36,477,506
Common stock, shares outstanding	36,481,324	36,477,506