Business Combinations - Additional Information (Detail) - USD ($) $ in Millions			3 Months Ended			6 Months Ended	9 Months Ended
	Jul. 13, 2016	Jun. 24, 2015	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Biomet merger consideration compensation expense								$ 164.1
Cost of products sold, excluding intangible asset amortization			$ 479.3		$ 552.1		$ 1,760.0	1,131.3
Decrease to intangible asset amortization						$ 6.7
Merger retention plans, expenses recognized								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				$ (4.6)
Increase in provision for income taxes						$ 52.7
LVB Acquisition Inc [Member] | Operating Expense [Member]
Business Acquisition [Line Items]
Biomet merger consideration compensation expense								164.1
Merger retention plans, expenses recognized								$ 73.0
Cayenne Medical, CTC, CDD and MedTech [Member]
Business Acquisition [Line Items]
Total consideration							441.7
Net assets acquired			495.3				495.3
Contingent consideration fair value			53.6				53.6
LDR Holding Corporation [Member]
Business Acquisition [Line Items]
Total consideration	$ 1,138.0
Biomet merger consideration compensation expense	24.1		$ 24.1				$ 24.1
Net assets acquired	$ 1,113.9