Other Operating Expense Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	$ 42,346	$ 593	$ 4,558
Orthopaedic facility optimization [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	32,482	425	225
Medical device facility optimization [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	1,525	0	0
ERP system upgrade [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	5,041	0	0
2007, 2008 facility shutdowns and consolidations [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	0	0	1,348
Integration costs [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	1,460	0	42
Asset dispositions severance and other [Member]
Other Operating Income Expense Detail [Line Items]
Other operating (income) expense, net	$ 1,838	$ 168	$ 2,943