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Commitments and Contingencies - Asbestos Narrative (Details)
$ in Millions
9 Months Ended 309 Months Ended
Sep. 30, 2016
claimants
cases
Sep. 30, 2016
USD ($)
claimants
cases
Dec. 31, 2015
claimants
Dec. 31, 2014
claimants
Minimum [Member]        
Loss Contingencies [Line Items]        
Estimated Time until Primary Insurance is Exhausted 6 months      
Maximum [Member]        
Loss Contingencies [Line Items]        
Estimated Time until Primary Insurance is Exhausted 18 months      
Asbestos [Member]        
Loss Contingencies [Line Items]        
Loss Contingency, Pending Claims, Number     6,242 7,992
Total settlement costs | $   $ 8.2    
Percentage of settlement and defense costs covered by insurance   40.00%    
Asbestos [Member] | Pending Litigation [Member]        
Loss Contingencies [Line Items]        
Loss Contingency, Pending Claims, Number | cases 800 800    
Number of pending claims 5,714      
Punitive Only Damages [Member] | Asbestos [Member] | Pending Litigation [Member]        
Loss Contingencies [Line Items]        
Number of pending claims seeking specific amounts of damages 0 0    
Compensatory Only Damages [Member] | Asbestos [Member] | Pending Litigation [Member]        
Loss Contingencies [Line Items]        
Number of pending claims seeking specific amounts of damages 96 96