Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Acquisitions and Investments - Additional Information (Detail) - USD ($) $ in Millions			3 Months Ended		6 Months Ended	9 Months Ended
	Oct. 01, 2020	Aug. 20, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2021	Sep. 30, 2020
INNOViON Corporation \| Equity Method Investment, Nonconsolidated Investee
Schedule of Equity Method Investments [Line Items]
Equity investment, ownership percentage							93.90%
Ascatron AB
Schedule of Equity Method Investments [Line Items]
Purchase consideration		$ 36.7
Acquisition related costs						$ 2.1
Revenue			$ 0.3			1.0
Net loss			(1.1)			$ (2.2)
Ascatron AB \| Developed technology
Schedule of Equity Method Investments [Line Items]
Remaining useful life						17 years
INNOViON Corporation
Schedule of Equity Method Investments [Line Items]
Purchase consideration	$ 4.4
Business acquisition, percentage of ownership interests acquired	6.10%
Increased value of previously held equity investment, fair value				$ 66.6
Gain on previously held equity				$ 7.0
Revenues			$ 6.9		$ 14.1
Net loss					$ (1.1)
INNOViON Corporation \| Developed technology
Schedule of Equity Method Investments [Line Items]
Remaining useful life	16 years
INNOViON Corporation \| Customer lists
Schedule of Equity Method Investments [Line Items]
Remaining useful life	14 years