CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jan. 01, 2012	Jan. 02, 2011
CONSOLIDATED BALANCE SHEETS
Allowance for doubtful trade accounts (in dollars)	$ 9,763	$ 5,876
Series A redeemable convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Series A redeemable convertible preferred stock, issued shares		23.625
Series A redeemable convertible preferred stock, shares outstanding		23.625
Series A redeemable convertible preferred stock, liquidation preference (in dollars per share)		$ 1,000
Series C Junior Participating Convertible Preferred, par value (in dollars per share)	$ 0.001
Series C Junior Participating Convertible Preferred, liquidation preference (in dollars per share)	$ 1,000
Series C Junior Participating Convertible Preferred, shares authorized	36.900
Series C Junior Participating Convertible Preferred, shares outstanding	36.375
Series C Junior Participating Convertible Preferred, convertible into common stock shares	26,944,444
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	300,000	300,000
Common stock, shares issued	121,844	103,975
Common stock, shares outstanding	121,844	103,975