Restructuring and Lease Charges, Net (Schedule of Restructuring Plan Activity) (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Apr. 01, 2012	Jan. 01, 2012	Apr. 01, 2012 Q1 2012 Restructuring Plan [Member]	Apr. 01, 2012 Q1 2012 Restructuring Plan [Member] Closure Of Excess Facility Space [Member]	Apr. 01, 2012 Q1 2012 Restructuring Plan [Member] Severance [Member]	Apr. 01, 2012 Q4 2011 Restructuring Plan [Member]	Apr. 01, 2012 Q4 2011 Restructuring Plan [Member] Closure Of Excess Facility Space [Member]	Apr. 01, 2012 Q4 2011 Restructuring Plan [Member] Severance [Member]	Apr. 01, 2012 Q2 2011 Restructuring Plan [Member]	Apr. 01, 2012 Q2 2011 Restructuring Plan [Member] Closure Of Excess Facility Space [Member]	Apr. 01, 2012 Q2 2011 Restructuring Plan [Member] Severance [Member]	Apr. 01, 2012 Previous restructuring and integration plans [Member]
Restructuring Reserve [Roll Forward]
Balance at January 1, 2012	$ 15,056	$ 13,958				$ 5,044	$ 370	$ 4,674	$ 1,283	$ 0	$ 1,283
Restructuring Reserve, Period Expense			5,719	79	5,640
Additional accrual for estimated sublease rental payments and (reversal) related to lower than expected cost associated with workforce reductions						(135)	(135)	0				200
Amounts paid and foreign currency translation			(1,930)	0	(1,930)	(2,065)	(60)	(2,005)	(269)	0	(269)
Balance at April 1, 2012	$ 15,056	$ 13,958	$ 3,789	$ 79	$ 3,710	$ 2,844	$ 175	$ 2,669	$ 1,014	$ 0	$ 1,014	$ 13,400