v3.26.1
Pension and Profit Sharing Plans - Schedule of Assumptions Used in Net Periodic Benefit Cost and Benefit Obligations (Detail)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Retirement Benefits [Abstract]      
Net Periodic Benefit Costs - Discount Rate 5.53% 5.27% 4.99%
Net Periodic Benefit Costs - Expected Return on Plan Assets 5.55% 5.30% 5.00%
Benefit Obligations - Discount Rate 5.41% 5.53%