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Employee Benefit Plans (Tables)
3 Months Ended
Oct. 31, 2021
Retirement Benefits, Description [Abstract]  
Components of net periodic pension costs
Net periodic pension (benefits) costs for the Company’s pension plans were as follows (in millions):
 Three Months Ended
October 31,
 20212020
Service cost$1.8 $2.2 
Interest cost2.5 2.4 
Expected return on assets(6.3)(5.8)
Prior service cost amortization0.1 0.1 
Actuarial loss amortization1.8 2.2 
Curtailment charge— 0.8 
Net periodic pension (benefits) costs$(0.1)$1.9