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Segment Information - Net Sales and Gross Profit (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Segment reporting information [Line Items]
Net Sales	$ 1,309.7	$ 1,322.6
Gross Profit	798.3	815.2
Semiconductor products
Segment reporting information [Line Items]
Net Sales	1,287.8	1,304.0
Gross Profit	776.4	796.6
Technology licensing
Segment reporting information [Line Items]
Net Sales	21.9	18.6
Gross Profit	$ 21.9	$ 18.6

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- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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