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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 |  |  |  |  |  |

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