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Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Accumulated goodwill impairment losses	$ 8.3		$ 8.3		$ 8.3
Goodwill impairment loss			0.0	$ 0.0
Aggregate amortization expense	12.4	$ 14.8	$ 24.9	$ 29.8
Impairment of intangible assets	1.6	2.4
ArraVasc Limited
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets	$ 1.6
ITL Healthcare Pty Ltd
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets		$ 2.4