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Divestitures - Other Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Divestitures [Line Items]
Total Other Income	$ 0.1	$ 18.8	$ 0.1	$ 18.7
Disposed of by sale
Divestitures [Line Items]
Gain (loss) on inventory		(12.5)		(12.5)
Other		0.1		0.0
Myriad myPath LLC laboratory | Disposed of by sale
Divestitures [Line Items]
Gain on sale		$ 31.2		$ 31.2

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