Commitments and Contingencies - Additional Information (Detail) € in Millions		1 Months Ended		3 Months Ended	9 Months Ended		117 Months Ended
	Feb. 05, 2013 USD ($)	Dec. 31, 2016 EUR (€)	Jul. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2017 USD ($) Patent	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) Patent	Dec. 02, 2016 USD ($)	Jun. 13, 2016 USD ($)	Jun. 06, 2016 USD ($)	Mar. 01, 2013 USD ($)	Jun. 10, 2011 USD ($)
Loss Contingencies [Line Items]
Compensatory damages awarded					$ 27,600,000
Percentage of fault apportioned to plaintiffs					30.00%
Percentage of fault apportioned to company					34.00%
Percentage of fault apportioned to unrelated third party					36.00%
Verdict in full and entered judgment												$ 20,300,000
Compensatory damages vacated										$ 27,600,000	$ 27,600,000
Verdict amount remitted								$ 21,500,000
Deferred Prosecution Agreement [Member]
Loss Contingencies [Line Items]
Estimated charges					$ 6,500,000
Civil settlement payments					6,500,000
Criminal penalty payments outstanding					$ 17,500,000
DPA term					3 years
Durom Cup Related Claims [Member]
Loss Contingencies [Line Items]
Certain claims						$ 0	$ 479,400,000
Co-payment requirement					20.00%
Estimated liability outstanding					$ 218,300,000		218,300,000
Estimated liability classified as short-term					75,000,000		75,000,000
Estimated liability classified as long-term					143,300,000		143,300,000
Durom Cup Related Claims [Member] | Other Assets [Member]
Loss Contingencies [Line Items]
Estimated insurance recoveries					95,300,000		95,300,000
Biomet Metal On Metal Hip Implant Claims [Member]
Loss Contingencies [Line Items]
Estimated liability classified as short-term					$ 39,700,000		$ 39,700,000
Heraeus Trade Secret Misappropriation Lawsuits [Member] | Germany [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages incurred | €		€ 121.9
Stryker Corporation [Member]
Loss Contingencies [Line Items]
Number of patents infringed | Patent					3		3
Monetary damages for lost profits	$ 70,000,000
Estimated charges			$ 90,300,000	$ 70,000,000
Stryker Corporation [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimated charges									$ 165,000,000