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Goodwill
 12 Months Ended
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
GOODWILL AND OTHER INTANGIBLE ASSETS
The following table summarizes the carrying amount of goodwill by segment:
(in millions)
Environmental
Solutions
 
Safety & Security
Systems
 
Total
Balance at December 31, 2014
$
120.4

 
$
114.8

 
$
235.2

Translation adjustments
—

 
(3.6
)
 
(3.6
)
Balance at December 31, 2015
120.4

 
111.2

 
231.6

Acquisitions
7.1

 
—

 
7.1

Translation adjustments
(0.3
)
 
(1.9
)
 
(2.2
)
Balance at December 31, 2016
$
127.2

 
$
109.3

 
$
236.5