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Commitments and Contingencies - Asbestos Narrative (Details)
$ in Millions
6 Months Ended 303 Months Ended
Jun. 30, 2016
claimants
cases
Mar. 31, 2016
USD ($)
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 | $   $ 8.1    
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 950      
Number of pending claims 6,031      
Punitive Only Damages [Member] | Asbestos [Member] | Pending Litigation [Member]        
Loss Contingencies [Line Items]        
Number of pending claims seeking specific amounts of damages 0      
Compensatory Only Damages [Member] | Asbestos [Member] | Pending Litigation [Member]        
Loss Contingencies [Line Items]        
Number of pending claims seeking specific amounts of damages 101