Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions						3 Months Ended	12 Months Ended
	Aug. 31, 2019	Jan. 05, 2019	Dec. 11, 2018	Aug. 17, 2018	May 25, 2018	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Deferred payments and contingent consideration related to business combinations							$ 86.6	$ 16.7	$ 0.0
Payment of deferred purchase consideration							22.6	0.3	0.0
Goodwill						$ 307.2	307.2	240.6	201.1
Amortization of intangible assets							43.0	14.2	12.9
Amortization expense related to intangible assets							43.0	$ 14.2	$ 12.9
Chindex
Business Acquisition [Line Items]
Total purchase consideration		$ 66.0
Deferred payments and contingent consideration related to business combinations		64.7
Cash payments		1.3
Estimated total undiscounted contingent consideration		81.0
Decrease in undiscounted expected contingent consideration							(6.0)
Payment of deferred purchase consideration							16.5
Additional payment of deferred purchase consideration							7.2
Net tangible assets acquired		1.7
Intangible assets acquired		58.6
Goodwill		$ 5.7
Weighted average useful life		2 years 10 months 24 days
Chindex | Distribution rights and others
Business Acquisition [Line Items]
Intangible assets acquired		$ 48.2
Chindex | Customer relationships
Business Acquisition [Line Items]
Intangible assets acquired		$ 10.4
Schölly
Business Acquisition [Line Items]
Total purchase consideration	$ 101.4
Cash payments	34.4
Net tangible assets acquired	10.7
Intangible assets acquired	31.0
Goodwill	$ 59.7
Weighted average useful life	6 years 7 months 6 days
Deferred Purchase Consideration Payments	$ 67.0					37.3	$ 37.3
Inventory acquired	6.7
Cash acquired	$ 1.4
Intangible assets adjustment						0.5
Goodwill adjustment						0.4
Schölly | Manufacturing process technology
Business Acquisition [Line Items]
Intangible assets						28.0
Schölly | Non-compete provision
Business Acquisition [Line Items]
Intangible assets						$ 3.0
Vattikuti Technologies Pvt. Ltd.
Business Acquisition [Line Items]
Cash payments					$ 36.2
Net tangible assets acquired					4.1
Intangible assets acquired					24.2
Goodwill					$ 7.3
Weighted average useful life					4 years 3 months 18 days
Net impact of measurement-period adjustment					$ 2.5
InTouch
Business Acquisition [Line Items]
Total purchase consideration				$ 38.7
Deferred payments and contingent consideration related to business combinations				16.7
Cash payments				22.0
Intangible assets acquired				13.3
Goodwill				$ 25.4
Weighted average useful life				5 years 8 months 12 days
Unison Surgicals Company
Business Acquisition [Line Items]
Cash payments			$ 35.4
Net tangible assets acquired			13.1
Intangible assets acquired			17.3
Goodwill			$ 5.0
Weighted average useful life			6 years 7 months 6 days
Cash acquired			$ 7.6