Fair Value Measurements (Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Dec. 30, 2012	Jan. 01, 2012
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ (1,149)	$ (1,105)
Foreign Currency Contract, Asset, Fair Value Disclosure	(274)
Foreign exchange derivative liabilities, net	(294)	(213)
Contingent consideration	(3,017)	(20,298)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	(1,149)	(1,105)
Foreign Currency Contract, Asset, Fair Value Disclosure	0
Foreign exchange derivative liabilities, net	0	0
Contingent consideration	0	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	(274)
Foreign exchange derivative liabilities, net	(294)	(213)
Contingent consideration	0	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0
Foreign exchange derivative liabilities, net	0	0
Contingent consideration	$ (3,017)	$ (20,298)