Restructuring and Other Items (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Activities affecting the restructuring obligations
Beginning balance at December 31, 2011			$ 22,196
Expense	2,209	2,154	4,274	5,485
Utilized			(15,654)
Ending balance at July 1, 2012	10,816		10,816
Lease terminations [Member]
Activities affecting the restructuring obligations
Beginning balance at December 31, 2011			11,752
Expense	1,181	1,865	2,815	3,553
Utilized			(4,844)
Ending balance at July 1, 2012	9,723		9,723
Employee severance and benefits [Member]
Activities affecting the restructuring obligations
Beginning balance at December 31, 2011			10,444
Expense	1,028	289	1,459	1,932
Utilized			(10,810)
Ending balance at July 1, 2012	$ 1,093		$ 1,093