Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 01, 2012	Jul. 01, 2012	Jan. 01, 2012
Restructuring activities
Restructuring Charges		$ 11,207	$ 4,495
Cost Incurred	16,300	11,207	2,572
Workforce Reduction [Member]
Restructuring activities
Restructuring Charges		5,356
Cost Incurred	5,400	1,843	1,147
Restructuring Reserve		3,513
Workforce Reduction [Member] | 2011 Restructuring Plan [Member]
Restructuring activities
Restructuring Charges			5,401
Cost Incurred		2,572	1,147
Restructuring Reserve		1,682
Fixed Asset Impairment [Member]
Restructuring activities
Restructuring Charges		9,364
Cost Incurred	9,300	9,364	776
Fixed Asset Impairment [Member] | 2011 Restructuring Plan [Member]
Restructuring activities
Restructuring Charges			776
Cost Incurred			776
Other Related Exit Costs [Member]
Restructuring activities
Restructuring Charges		1,596
Restructuring Reserve		$ 1,596