v3.24.1.u1
Benefit Plans (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 29, 2024
Feb. 28, 2023
Feb. 28, 2022
Defined Benefit Plan Disclosure [Line Items]      
Expected contributions to the plan next year $ 0.3    
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Contributions to the plan in current year 0.0    
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year (0.4)    
Defined Benefit Plan, Expected Future Benefit Payment, Year One 7.5    
Defined Benefit Plan, Expected Future Benefit Payment, Year Two 7.5    
Defined Benefit Plan, Expected Future Benefit Payment, Year Three 7.5    
Defined Benefit Plan, Expected Future Benefit Payment, Year Four 8.8    
Defined Benefit Plan, Expected Future Benefit Payment, Year Five 8.8    
Restoration Plan      
Defined Benefit Plan Disclosure [Line Items]      
Expected contributions to the plan next year 0.6    
Defined Benefit Plan, Expected Future Benefit Payment, Year Two 0.6    
Defined Benefit Plan, Expected Future Benefit Payment, Year Three 0.6    
Defined Benefit Plan, Expected Future Benefit Payment, Year Four 0.6    
Defined Benefit Plan, Expected Future Benefit Payment, Year Five 0.6    
Retirement Savings Plan401k      
Defined Benefit Plan Disclosure [Line Items]      
Total cost for company contributions $ 68.1 $ 64.0 $ 63.8
Equity securities | Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation 40.00%    
Fixed income securities | Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation 60.00%