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Special Charges (Income) and Other, Net
 12 Months Ended
Mar. 31, 2026
Other Income and Expenses [Abstract]  
Special Charges (Income) and Other, Net Special Charges (Income) and Other, Net
 
The following table summarizes activity included in the "Special charges (income) and other, net" caption on the Company's consolidated statements of operations (in millions):
Fiscal Year Ended March 31,
202620252024
Restructuring
Employee separation costs$0.9 $27.1 $— 
Impairment charges0.4 — — 
Contract exit costs14.5 45.7 — 
Other restructuring costs21.8 3.7 6.2 
Legal contingencies2.1 1.0 (1.3)
Other— 1.7 (17.2)
Total$39.7 $79.2 $(12.3)

The Company continuously evaluates its existing operations in an attempt to identify and realize cost savings opportunities and operational efficiencies. In the third and fourth quarters of fiscal 2025, the Company announced restructuring and cost reduction measures, including closure of its Tempe, Arizona wafer fabrication facility, and a reduction in headcount at its manufacturing facilities in Oregon, Colorado Springs and the Philippines. In addition, the Company announced 10% reductions in employee headcount across the Company to decrease its operating expenses, and cancellation or modification of its LTSAs with certain wafer foundries. In connection with these efforts, the Company incurred costs of $14.5 million and $45.7 million related to contract exit costs during fiscal 2026 and fiscal 2025, respectively, and incurred costs of $0.9 million and $27.1 million related to employee separation costs during fiscal 2026 and fiscal 2025, respectively. During fiscal 2026, the Company incurred costs of $21.8 million related to the closure of its Fab 2 wafer fabrication facility in Tempe, Arizona. Other than the closure of its Fab 2, the restructuring efforts were substantially completed as of March 31, 2026.

During fiscal 2024, the Company earned special income primarily due to $17.2 million related to the favorable resolution of a previously accrued unclaimed property audit matter and incurred expenses of $6.2 million related to the restructuring costs of acquired and existing wafer fabrication operations to increase operational efficiency.
The following is a roll forward of accrued restructuring and other exit cost charges for the fiscal year ended March 31, 2026 (in millions):
Restructuring
Employee Separation CostsContract Exit CostsOtherTotal
Balance at March 31, 2025$17.1 $4.6 $0.4 $22.1 
Charges0.9 14.5 21.8 37.2 
Payments(18.7)(2.0)(21.2)(41.9)
Non-cash - Other2.1 (13.7)— (11.6)
Balance at March 31, 2026$1.4 $3.4 $1.0 $5.8 
Current$3.7 
Non-current2.1 
Total$5.8 
The liability for restructuring and other exit costs on the Company's consolidated balance sheet as of March 31, 2026 is $5.8 million of which $3.7 million is included in accrued liabilities and $2.1 million is included in other long-term liabilities.