Commitments and Contingencies - Product Liability (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) lawsuit item individual case	Dec. 31, 2018 item
Product Liability Litigation | U.S. District Court for the District of Minnesota
Product Liability Litigation
Time in which a decision is expected to be settled	60 days
Product Liability - Bair Hugger
Product Liability Litigation
Number of plaintiffs | item	5,170	5,015
Accrued loss contingency reserve | $	$ 0
Number of federal bellwether cases in aggregate that have a scheduled trial date set	12
Number of federal bellwether cases dismissed	11
Number of total claims dismissed | case	61
Product Liability - Bair Hugger and medical malpractice claims | Hidalgo County Texas
Product Liability Litigation
Number of lawsuits filed	1
Product Liability - Bair Hugger and medical malpractice claims | Missouri
Product Liability Litigation
Number of lawsuits filed	3
Number of cases petitioned to transfer jurisdictions	1
Number of cases that are petitioned to be transfer jurisdictions	2
Product Liability - Dual-Ended Combat Arms Earplugs
Product Liability Litigation
Number of lawsuits filed	1,050
Number of putative class action and other lawsuits	7
Number of plaintiffs | individual	2,230