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Business Acquisitions, Divestiture and Other Transaction - Acquisitions (Details) (USD $)
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12 Months Ended | 0 Months Ended | |||||||||||
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Dec. 28, 2013
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Dec. 29, 2012
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Dec. 31, 2011
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Dec. 31, 2013
Arseus NV Legal Entity [Member]
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Dec. 31, 2013
BioHorizons, Inc. Legal Entity [Member]
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Jun. 30, 2010
Provet Holdings Limited Legal Entity [Member]
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Jan. 06, 2014
Arseus NV [Member]
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Dec. 30, 2013
BioHorizons, Inc. [Member]
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Dec. 28, 2013
BioHorizons, Inc. [Member]
Funding provided to acquiree prior to acquisition [Member]
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Dec. 31, 2010
Provet Holdings Limited [Member]
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Dec. 28, 2013
Other acquisitions immaterial individually and in the aggregate [Member]
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Dec. 29, 2012
Other acquisitions immaterial individually and in the aggregate [Member]
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Dec. 31, 2011
Other acquisitions immaterial individually and in the aggregate [Member]
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| Business Acquisition [Line Items] | |||||||||||||
| Acquired equity interest (in hundredths) | 100.00% | 60.00% | 100.00% | ||||||||||
| Business acquisition, aggregate sales in year of acquisition of acquired companies | $ 97,000,000 | $ 115,000,000 | $ 278,000,000 | ||||||||||
| Cash consideration paid | 91,000,000 | ||||||||||||
| Business acquisition allocated goodwill amount | 1,635,005,000 | 1,601,046,000 | 1,497,108,000 | 27,000,000 | 14,700,000 | 128,000,000 | 38,800,000 | ||||||
| Long-term loan funding provided | 145,000,000 | 0 | 145,000,000 | ||||||||||
| Long-term loan receivable reclassified to intercompany loans | $ 145,000,000 | ||||||||||||