Acquisitions - Additional Information (Detail) - USD ($) $ in Millions					10 Months Ended	12 Months Ended
	Jan. 21, 2016	Dec. 03, 2015	Nov. 02, 2015	Jul. 01, 2015	Nov. 01, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2021
Business Acquisition [Line Items]
Loss related to the settlement of preexisting contractual relationship						$ 0.0	$ 49.6	$ 0.0
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain						$ 0.0	25.5	0.0
Liberator Medical Holdings, Inc.
Business Acquisition [Line Items]
Percentage of outstanding stock acquired	100.00%
Business acquisition, purchase consideration cash payment	$ 181.1
Purchase price allocation at fair value, recognition of deferred tax liabilities	31.6
Business Combination, recognized identifiable assets acquired and liabilities assumed, other net assets and liabilities	11.9
Purchase price allocation at fair value, goodwill	121.8
Embo Medical Limited
Business Acquisition [Line Items]
Percentage of outstanding stock acquired		100.00%
Business acquisition, purchase consideration cash payment		$ 21.0
Business Combination, recognized identifiable assets acquired and liabilities assumed, other net assets and liabilities		(2.9)
Purchase price allocation at fair value, goodwill		4.4
Business acquisition, maximum contingent consideration		22.5
Business combination, contingent consideration, liability		16.6
Medicon Inc
Business Acquisition [Line Items]
Percentage of outstanding stock acquired			50.00%
Business acquisition, purchase consideration cash payment			$ 24.9
Purchase price allocation at fair value, recognition of deferred tax liabilities			8.8
Purchase price allocation at fair value, goodwill			$ 21.7
Percentage ownership, after close of transaction			100.00%
Business acquisition, consideration payment period			10 years			5 years
Cash and non-cash consideration to be paid to acquire business			$ 138.0
Non-contingent future payments for business combination			65.8
Effective settlement of a preexisting accounts receivable balance			42.0
Fair value of an off-market supply contract			5.3
Liability for non-continent future payments for business combinations						$ 52.3	66.0
Business acquisition, purchase consideration			$ 88.4
Business Combination, Step Acquisition, Equity Interest in Acquiree immediately before the acquisition date, Percentage			50.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree immediately before the acquisition date, Fair Value			$ 46.4
Purchase price allocation at fair value, other net assets			93.0
Related parties sales					$ 139.6			156.3
Equity (loss) income					(0.4)			(0.3)
Dividends received					$ 0.0			$ 1.5
Medicon Inc | Scenario, Forecast
Business Acquisition [Line Items]
Liability for non-continent future payments for business combinations									$ 41.0
Vascular Pathways Inc
Business Acquisition [Line Items]
Percentage of outstanding stock acquired				100.00%
Purchase price allocation at fair value, recognition of deferred tax liabilities				$ 24.8
Purchase price allocation at fair value, goodwill				42.4
Business acquisition, maximum contingent consideration				15.0
Business acquisition, purchase consideration				81.5
Acquisition related transaction costs				2.2
Purchase price allocation at fair value, recognition of deferred tax assets				9.9
Purchase price allocation at fair value, other liabilities				11.0
Customer relationships | Liberator Medical Holdings, Inc.
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of finite-lived intangible asset	$ 53.0
Customer relationships | Medicon Inc
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of finite-lived intangible asset			$ 13.0
Customer relationships | Weighted Average | Liberator Medical Holdings, Inc.
Business Acquisition [Line Items]
Estimated useful lives, years	12 years
Customer relationships | Weighted Average | Medicon Inc
Business Acquisition [Line Items]
Estimated useful lives, years			12 years
Other Intangible Assets | Liberator Medical Holdings, Inc.
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of finite-lived intangible asset	$ 26.0
Other Intangible Assets | Medicon Inc
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of finite-lived intangible asset			$ 4.0
Other Intangible Assets | Weighted Average
Business Acquisition [Line Items]
Estimated useful lives, years						13 years
Other Intangible Assets | Weighted Average | Liberator Medical Holdings, Inc.
Business Acquisition [Line Items]
Estimated useful lives, years	8 years
Other Intangible Assets | Weighted Average | Medicon Inc
Business Acquisition [Line Items]
Estimated useful lives, years			10 years
Developed technologies | Vascular Pathways Inc
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of finite-lived intangible asset				$ 65.0
Estimated useful lives, years				12 years
Other Long-term Liabilities | Medicon Inc
Business Acquisition [Line Items]
Liability for non-continent future payments for business combinations						$ 39.5	$ 50.3
Settlement Of Preexisting Relationship | Medicon Inc
Business Acquisition [Line Items]
Loss related to the settlement of preexisting contractual relationship, after tax			$ 33.5
Other (income) expense, net | Settlement Of Preexisting Relationship | Medicon Inc
Business Acquisition [Line Items]
Loss related to the settlement of preexisting contractual relationship			49.6
Other (income) expense, net | Remeasurement Of Previously Held Equity Interest | Medicon Inc
Business Acquisition [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain			25.5
Marketing, selling and administrative expense | Medicon Inc
Business Acquisition [Line Items]
Acquisition related transaction costs			2.4
Marketing, selling and administrative expense | Vascular Pathways Inc
Business Acquisition [Line Items]
Acquisition related transaction costs				$ 1.2
Research and Development Expense | Vascular Pathways Inc
Business Acquisition [Line Items]
Acquisition related transaction costs				$ 1.0
In-Process Research And Development | Embo Medical Limited
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of indefinite-lived intangible asset		$ 36.1
Risk-adjusted discount rate		17.50%
In-Process Research And Development | Medicon Inc
Business Acquisition [Line Items]
Purchase price allocation at fair value, recognition of indefinite-lived intangible asset			$ 11.9