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Special Charges and Other, Net (Tables)
12 Months Ended
Mar. 31, 2022
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,
202220212020
Restructuring
Employee separation costs$0.6 $(1.3)$6.0 
Gain on sale of assets(7.9)(5.8)(1.5)
Impairment charges— — 0.7 
Contract exit costs5.0 (1.6)5.2 
Wafer fabrication restructuring21.1 15.0 18.0 
Other(0.3)0.1 2.6 
Legal contingencies12.5 0.2 15.7 
Contingent consideration revaluation(1.5)(4.9)— 
Total$29.5 $1.7 $46.7