Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 27, 2014	Dec. 28, 2013
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 845	$ 1,036
PMC special shares convertible into common stock, shares	1,016,000	1,019,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	900,000,000	900,000,000
Common stock, shares issued	197,749,000	194,415,000
Common stock, shares outstanding	197,749,000	194,415,000