CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Apr. 01, 2012	Jan. 01, 2012
CONSOLIDATED CONDENSED BALANCE SHEETS
Allowance for doubtful trade accounts (in dollars)	$ 10,291	$ 9,763
Series C Junior Participating Convertible Preferred Stock, par value (in dollars per share)	$ 0.001	$ 0.001
Series C Junior Participating Convertible Preferred Stock, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Series C Junior Participating Convertible Preferred Stock, shares authorized	36.900	36.900
Series C Junior Participating Convertible Preferred Stock, shares outstanding	36.375	36.375
Series C Junior Participating Convertible Preferred Stock, convertible into common stock shares	26,944	26,944
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	300,000	300,000
Common stock, shares issued	121,952	121,844
Common stock, shares outstanding	121,952	121,844