Commitments and Contingencies - Additional Information (Detail) € in Millions		1 Months Ended		3 Months Ended				6 Months Ended	126 Months Ended
	Feb. 05, 2013 USD ($)	Dec. 31, 2016 EUR (€)	Jul. 31, 2015 USD ($)	Jun. 30, 2018 USD ($) Patent	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2014 USD ($)	Jun. 30, 2018 USD ($) Patent	Jun. 30, 2018 USD ($) 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
Molded verdict amount remitted between PCI and us										$ 15,800,000
Estimated charges					$ 15,800,000
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			$ 469,700,000
Estimated liability outstanding				$ 119,400,000				$ 119,400,000	119,400,000
Estimated liability classified as short-term				48,900,000				48,900,000	48,900,000
Estimated liability classified as long-term				70,500,000				70,500,000	70,500,000
Biomet Metal On Metal Hip Implant Claims [Member]
Loss Contingencies [Line Items]
Estimated liability classified as short-term				$ 41,400,000				$ 41,400,000	$ 41,400,000
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]
Estimated charges			$ 90,300,000				$ 70,000,000
Number of patents infringed | Patent				3				3	3
Monetary damages for lost profits	$ 70,000,000
Stryker Corporation [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimated charges											$ 170,000,000
Selling, General and Administrative Expense [Member]
Loss Contingencies [Line Items]
Gain recognized for claims settlement				$ 20,000,000				$ 20,000,000