Business Combinations (Fair Values of the Business Combinations and Allocations for the Acquisitions Completed) (Details) (USD $) In Thousands, unless otherwise specified					1 Months Ended	12 Months Ended		12 Months Ended
	Sep. 29, 2013	Dec. 30, 2012	Sep. 29, 2013 Human Health [Member]	Dec. 30, 2012 Human Health [Member]	Nov. 30, 2012 Human Health [Member] Haoyuan Biotech Co. [Member]	Dec. 30, 2012 Human Health [Member] Core Technology [Member] Haoyuan Biotech Co. [Member]	Nov. 30, 2012 Human Health [Member] Core Technology [Member] Haoyuan Biotech Co. [Member]	Dec. 30, 2012 Human Health [Member] Trade Names [Member] Haoyuan Biotech Co. [Member]	Nov. 30, 2012 Human Health [Member] Trade Names [Member] Haoyuan Biotech Co. [Member]	Nov. 30, 2012 Human Health [Member] In-process Research and Development [Member] Haoyuan Biotech Co. [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life						8 years		8 years
Business Acquisition, Cost of Acquired Entity, Cash Paid					$ 38,000
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred, Contingent Consideration at Fair Value					1,900
Working capital adjustments					(2,729)
Less: cash acquired					175
Business Combination, Consideration Transferred					36,996
Current assets					2,389
Property, plant and equipment					2,906
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							17,700		400	300
Goodwill	2,131,051	2,122,788	1,639,556	1,632,487	19,682
Deferred taxes					(2,656)
Liabilities assumed					(3,725)
Total					$ 36,996