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Restructuring Charges (Tables)
 9 Months Ended
Mar. 31, 2016
Restructuring and Related Activities [Abstract]  
Schedule of activity and reserve balances for restructuring
Activity and reserve balances for restructuring charges during the nine months ended March 31, 2016 were as follows:

($ in millions)
 
Reserve Balance
Reserve balance at June 30, 2015
 
$
2.3

Restructuring charges
 
10.4

Payments from qualified pension plan associated with restructuring charges
 
(9.4
)
Cash payments
 
(2.2
)
Other
 
(0.4
)
Reserve balance at March 31, 2016
 
$
0.7