v3.26.1
Employee Benefit Plans - Schedule of Actuarial Assumptions for the Pension Plans (Details)
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Minimum      
Benefit Obligations:      
Discount rate (as a percent) 1.10% 1.20%  
Estimated rate of compensation increase (as a percent) 2.00% 2.00%  
Cash balance interest credit rate (as a percent) 0.75% 0.75%  
Net Periodic Costs:      
Discount rate (as a percent) 1.20% 1.50% 1.50%
Estimated rate of compensation increase (as a percent) 2.00% 2.25% 2.25%
Expected average rate of return on plan assets (as a percent) 1.00% 1.00% 0.50%
Cash balance interest credit rate (as a percent) 0.75% 0.50% 0.50%
Maximum      
Benefit Obligations:      
Discount rate (as a percent) 6.75% 6.50%  
Estimated rate of compensation increase (as a percent) 10.00% 10.00%  
Cash balance interest credit rate (as a percent) 1.75% 1.75%  
Net Periodic Costs:      
Discount rate (as a percent) 6.50% 7.00% 7.25%
Estimated rate of compensation increase (as a percent) 10.00% 10.00% 10.00%
Expected average rate of return on plan assets (as a percent) 4.50% 5.25% 4.50%
Cash balance interest credit rate (as a percent) 1.75% 1.75% 1.75%