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Pension, Post-Retirement and Post-Employment Plans (Details) - Changes in Company's Post-retirement Medical Benefit Obligations - USD ($)
$ in Millions
8 Months Ended 10 Months Ended 12 Months Ended
Dec. 31, 2013
Oct. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Domestic Postretirement Benefit Plan of Foreign Entity [Member] | Successor [Member]        
Change in Accumulated Postretirement Benefit:        
Balance $ 0.0   $ 7.4 $ 6.8
Acquisitions 6.7   2.3 0.0
Service cost 0.0   0.0 0.1
Interest cost 0.1   0.3 0.3
Employee contributions 0.0   0.2 0.0
Actuarial loss/(gain) due to assumption change 0.1   (0.5) 0.5
Actuarial loss/(gain) due to plan experience 0.0   0.3 0.0
Other 0.0   0.0 0.0
Benefits and expenses paid (0.1)   (0.6) (0.3)
Balance 6.8   9.4 7.4
Domestic Postretirement Benefit Plan of Foreign Entity [Member] | Predecessor [Member]        
Change in Accumulated Postretirement Benefit:        
Balance   $ 6.9    
Acquisitions   0.0    
Service cost   0.0    
Interest cost   0.2    
Employee contributions   0.2    
Actuarial loss/(gain) due to assumption change   (0.1)    
Actuarial loss/(gain) due to plan experience   (0.1)    
Other   0.0    
Benefits and expenses paid   (0.5)    
Balance   6.6    
Foreign Postretirement Benefit Plan [Member] | Successor [Member]        
Change in Accumulated Postretirement Benefit:        
Balance 0.0   0.3 0.3
Acquisitions 0.3   1.5 0.0
Service cost 0.0   0.1 0.0
Interest cost 0.0   0.2 0.0
Employee contributions 0.0   0.0 0.0
Actuarial loss/(gain) due to assumption change 0.0   (0.2) 0.0
Actuarial loss/(gain) due to plan experience 0.0   (0.1) 0.0
Other 0.0   (0.3) 0.0
Benefits and expenses paid 0.0   (0.1) 0.0
Balance $ 0.3   $ 1.4 $ 0.3
Foreign Postretirement Benefit Plan [Member] | Predecessor [Member]        
Change in Accumulated Postretirement Benefit:        
Balance   0.4    
Acquisitions   0.0    
Service cost   0.0    
Interest cost   0.0    
Employee contributions   0.0    
Actuarial loss/(gain) due to assumption change   (0.1)    
Actuarial loss/(gain) due to plan experience   0.0    
Other   0.0    
Benefits and expenses paid   0.0    
Balance   $ 0.3