Biomet Merger - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended
	Jun. 24, 2015	Mar. 31, 2016
Business Acquisition [Line Items]
Net assets acquired		$ 11,939.9
Decrease to intangible asset amortization		$ (6.7)
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