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Employee Benefit Plans (Tables)
 3 Months Ended
Oct. 31, 2017
Retirement Benefits, Description [Abstract]  
Components Of Net Periodic Pension Costs
Net periodic benefit costs for the Company’s pension plans include the following components (in millions):
 
Three Months Ended
October 31,
 
2017

 
2016

Net periodic benefit costs:
 

 
 

Service cost
$
2.0

 
$
2.1

Interest cost
3.7

 
3.4

Expected return on assets
(6.5
)
 
(6.6
)
Prior service cost amortization
0.1

 
0.1

Actuarial loss amortization
1.2

 
1.8

Net periodic benefit costs
$
0.5

 
$
0.8