Special Charges and Other, Net (Tables)

12 Months Ended

Mar. 31, 2021

Other Income and Expenses [Abstract]

Summary of Activity in Special Charges and Other, Net

The following table summarizes activity included in the "special charges and other, net" caption on the Company's consolidated statements of income (in millions):

	Fiscal Year Ended March 31,
	2021		2020		2019
Restructuring
Employee separation costs	$	(1.3)	$	6.0	$	65.3
Gain on sale of assets	(5.8)		(1.5)		—
Impairment charges	—		0.7		3.6
Contract exit costs	(1.6)		5.2		(4.7)
Wafer fabrication restructuring	15.0		18.0		—
Other	0.1		2.6		(0.3)
Legal contingencies	0.2		15.7		(30.2)
Contingent consideration revaluation	(4.9)		—		—
Total	$	1.7	$	46.7	$	33.7