Other Operating Expense Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Jun. 29, 2012	Jul. 01, 2011
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	$ 5,923	$ (520)	$ 8,668	$ (353)
Orthopaedic facility optimization [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	1,978	22	2,322	261
Medical device facility optimization [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	565	0	894	0
ERP system upgrade [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	1,912	0	2,807	0
Integration costs [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	112	0	1,055	0
Asset dispositions severance and other [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	$ 1,356	$ (542)	$ 1,590	$ (614)