Business Combinations (Narrative) (Details) (USD $)	12 Months Ended										12 Months Ended	0 Months Ended		12 Months Ended
	Jan. 03, 2014	Dec. 28, 2012	Dec. 30, 2011	Jan. 03, 2014 Customer Relationships [Member]	Jan. 03, 2014 Developed Product Technology [Member]	Jan. 03, 2014 Trade Names And Trademarks [Member]	Jan. 03, 2014 Distribution Rights And Other Intellectual Properties [Member]	Jan. 03, 2014 Tekla Corporation [Member]	Dec. 30, 2011 Tekla Corporation [Member]	Jul. 08, 2011 Tekla Corporation [Member]	Dec. 28, 2012 TMW Acquisition [Member]	Oct. 02, 2012 TMW Acquisition [Member] Customer Relationships [Member]	Oct. 02, 2012 TMW Acquisition [Member] Developed Product Technology [Member]	Jan. 03, 2014 Minimum [Member]	Jan. 03, 2014 Maximum [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired	16
Business Combination, Consideration Transferred											$ 333,414,000			$ 500,000	$ 80,000,000
Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual Percentage Of Total Revenue	3.00%
Significant Acquisition, Percentage of Total Cash Consideration											45.00%
Business Combination Valuation Remeasurement Window	1 year
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners								0.54%
Business acquisition, percentage of shares acquired										99.46%
Acquisition-related costs	13,544,000	20,455,000	14,892,000
Business combination, revenue of acquiree											16,500,000
Weighted-average amortization period, years				8 years	6 years	5 years	7 years					8 years	6 years
Net deferred tax liabilities	172,367,000	181,554,000
Business Combination Cash Held In Escrow									$ 2,500,000