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Balance Sheet Details - Narrative (Details) - USD ($) $ in Millions	11 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Maximum contractual maturities of debt securities held	12 months	12 months
Depreciation expense		$ 46.9	$ 28.6	$ 16.1
Gain (loss) on disposal of machinery and equipment		(10.5)	(5.4)	$ (11.0)
Restructuring charges and costs	$ 8.0
Receiver Product Component
Condensed Financial Statements, Captions [Line Items]
Inventory write-down		$ 14.1	$ 7.3

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period between issuance and maturity of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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