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Business Segment Information (Schedule Of Reconciliation Of Segment Assets To Condensed Consolidated Total Assets) (Detail) (USD $) In Thousands, unless otherwise specified | Jul. 01, 2012 | Dec. 31, 2011 | Jun. 26, 2011
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Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |  |
Total assets | $ 3,606,822 |  | $ 3,924,103 | $ 3,878,232 |
Segment [Member] |  |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |  |
Total assets | 2,825,906 | [1] |  | 3,221,280 | [1]
Corporate Assets [Member] |  |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |  |
Total assets | 727,026 | [2] |  | 541,492 | [2]
Assets Of Businesses Divested [Member] |  |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |  |
Total assets |  |  |  | 103,401 | [3]
Assets Held For Sale [Member] |  |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |  |
Total assets | $ 53,890 |  |  | $ 12,059 |
[1] | Segment assets for the 2011 period include assets of the orthopedic business of the Company's OEM Segment, which as July 1, 2012 are classified as held for sale.
[2] | Increase in corporate assets from the prior period reflects higher cash balances as a result of the sale of businesses during the fourth quarter of 2011.
[3] | Assets of businesses divested were previously reported as assets held for sale in 2011.

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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