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
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.