Business Combinations - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 24, 2015	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Business Acquisition [Line Items]
Biomet merger consideration compensation expense				$ 164.1		$ 164.1
Cost of products sold, excluding intangible asset amortization		$ 640.1		294.3	$ 1,280.7	579.2
Decrease to intangible asset amortization					6.7
Merger retention plans, expenses recognized				73.0		73.0
LVB Acquisition Inc [Member]
Business Acquisition [Line Items]
Total consideration	$ 12,030.3
Biomet merger consideration compensation expense	90.4
Net assets acquired	$ 11,939.9
Cost of products sold, excluding intangible asset amortization		6.9	$ 2.3				$ 4.6
Increase in provision for income taxes		73.2	$ 20.5		52.7		$ 52.7
LVB Acquisition Inc [Member] | Operating Expense [Member]
Business Acquisition [Line Items]
Biomet merger consideration compensation expense				164.1		164.1
Merger retention plans, expenses recognized				$ 73.0		$ 73.0
Cayenne Medical, CTC [Member]
Business Acquisition [Line Items]
Total consideration		189.0
Net assets acquired		221.5			221.5
Contingent consideration fair value		$ 32.5			$ 32.5