Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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The amount of consideration recognized during the period under a development, licensing and supply agreement entered into with a customer.

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Other Expense (Income) - Other Items (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Development and licensing income [Line Items]
Loss on sale of investments	$ 0.9
Loss on investment activity			$ 1.8
Impairment charge			2.2
Deferred income	38.1		38.1		$ 57.1
SmartDose
Development and licensing income [Line Items]
Development and licensing income	$ 0.2	$ 0.2	$ 0.6	$ 0.6