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Commitments and Contingencies (Details)
$ in Thousands
3 Months Ended 6 Months Ended 178 Months Ended
Jun. 30, 2016
USD ($)
Claim
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
Claim
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
Claim
Changes in product warranties [Roll forward]          
Balance, beginning of period $ 26,404 $ 19,985 $ 23,395 $ 19,328  
Liabilities accrued for current year sales 25,418 25,951 47,999 46,987  
Settlements of warranty claims (24,876) (20,788) (44,448) (41,167)  
Balance, end of period $ 26,946 $ 25,148 $ 26,946 $ 25,148 $ 26,946
Asbestos [Member]          
Loss Contingencies [Line Items]          
Pending claims, approximate number | Claim 1,620   1,620   1,620
Payment for settled claims         $ 19,400
Decrease for low end of range     $ 2,800    
Decrease for high end of range     4,300    
Asbestos [Member] | Minimum [Member]          
Loss Contingencies [Line Items]          
Range of possible loss $ 33,300   33,300   33,300
Asbestos [Member] | Maximum [Member]          
Loss Contingencies [Line Items]          
Range of possible loss 51,100   51,100   51,100
Asbestos [Member] | Discontinued Operations [Member] | Minimum [Member]          
Loss Contingencies [Line Items]          
Range of possible loss 40,000   40,000   40,000
Asbestos [Member] | Discontinued Operations [Member] | Maximum [Member]          
Loss Contingencies [Line Items]          
Range of possible loss $ 75,500   $ 75,500   $ 75,500