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Other Income (Expense), Net (Tables)
 9 Months Ended
Mar. 31, 2017
Other Income and Expenses [Abstract]  
Schedule of other income, net
Other income (expense), net consisted of the following:
 
 
 
Three Months Ended
March 31,
 
Nine Months Ended
March 31,
($ in millions)
 
2017
 
2016
 
2017
 
2016
Foreign exchange loss
 
$
(0.9
)
 
$
—

 
$
(1.0
)
 
$
(2.3
)
Unrealized gains (losses) on company-owned life insurance contracts and investments held in rabbi trusts
 
0.6

 
(1.3
)
 
1.3

 
(1.8
)
Equity in earnings (losses) of unconsolidated subsidiaries
 
—

 
(0.2
)
 
—

 
0.6

Other
 
1.3

 
—

 
1.7

 
0.1

Total other income (expense), net
 
$
1.0

 
$
(1.5
)
 
$
2.0

 
$
(3.4
)