Commitments and Contingencies - Additional Information (Detail) € in Millions					1 Months Ended			3 Months Ended	12 Months Ended			132 Months Ended
	Feb. 13, 2019 USD ($)	Feb. 13, 2019 NOK (kr)	Feb. 11, 2019 Case	Feb. 05, 2013 USD ($)	Jan. 31, 2017 EUR (€)	Dec. 31, 2016 EUR (€)	Jul. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2018 USD ($) Patent	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 USD ($) Patent
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
Deferred Prosecution Agreement [Member] | Maximum [Member]
Loss Contingencies [Line Items]
DPA extended term									1 year
Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases, settlement | Case			273
Number of remaining cases | Case			279
Loss contingency, damages awarded, value	$ 2,300,000	kr 19,500,000
SG&A Expense [Member]
Loss Contingencies [Line Items]
Certain Claims									$ 37,200,000
Durom Cup Related Claims [Member]
Loss Contingencies [Line Items]
Certain claims										$ 10,300,000	$ 0	$ 452,500,000
Estimated liability outstanding									91,600,000			91,600,000
Estimated liability classified as short-term									19,500,000			19,500,000
Estimated liability classified as long-term									72,100,000			72,100,000
Biomet Metal On Metal Hip Implant Claims [Member]
Loss Contingencies [Line Items]
Estimated liability classified as short-term									$ 70,400,000			$ 70,400,000
Heraeus Trade Secret Misappropriation Lawsuits [Member] | Germany [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages incurred | €					€ 125.9	€ 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
Estimated loss									$ 168,000,000			$ 168,000,000