Convertible Notes (Details 1) (USD $) In Thousands	6 Months Ended	12 Months Ended
	Jul. 03, 2010	Jan. 01, 2011
Repurchase and related loss on early extinguishment of debt
Principal amount repurchased		$ 205,539
Amount allocated to:
Extinguishment of liability component		186,746
Extinguishment of equity component		5,618
Total cash paid for repurchase	(187,150)	192,364
Convertible Senior Notes Due 2011 [Member]
Repurchase and related loss on early extinguishment of debt
Principal amount repurchased		100,000
Amount allocated to:
Extinguishment of liability component		95,865
Extinguishment of equity component		2,285
Total cash paid for repurchase		98,150
Convertible Senior Notes Due 2013 [Member]
Repurchase and related loss on early extinguishment of debt
Principal amount repurchased		105,539
Amount allocated to:
Extinguishment of liability component		90,881
Extinguishment of equity component		3,333
Total cash paid for repurchase		$ 94,214