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Commitments and Contingencies (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 202 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 USD ($) Claim | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) Claim | Sep. 30, 2017 USD ($) | Jun. 30, 2018 USD ($)
Changes in product warranties [Roll forward] |  |  |  |  |
Balance, beginning of period | $ 21,705 | $ 24,528 | $ 20,929 | $ 24,072 |
Liabilities accrued for current year sales | 25,748 | 25,023 | 70,126 | 76,446 |
Settlements of warranty claims | (23,396) | (24,713) | (66,998) | (75,680) |
Balance, end of period | $ 24,057 | $ 24,838 | $ 24,057 | $ 24,838 | $ 21,705
Asbestos [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Pending claims, approximate number | Claim | 1,450 |  | 1,450 |  |
Payment for settled claims |  |  |  |  | $ 25,200
Increase from low end of range |  |  | $ 1,900 |  |
Increase from high end of range |  |  | 2,900 |  |
Asbestos [Member] | Minimum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | $ 37,100 |  | 37,100 |  |
Asbestos [Member] | Maximum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | 56,900 |  | 56,900 |  |
Asbestos [Member] | Discontinued Operations [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Incremental pre-tax provision |  |  | 3,500 |  |
Asbestos [Member] | Discontinued Operations [Member] | Minimum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | 44,900 |  | 44,900 |  |
Asbestos [Member] | Discontinued Operations [Member] | Maximum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | $ 80,600 |  | $ 80,600 |  |

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