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Commitments and Contingencies (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 202 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 USD ($) Claim | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) Claim | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) Claim
Changes in product warranties [Roll forward] |  |  |  |  |
Balance, beginning of period | $ 20,560 | $ 25,609 | $ 20,929 | $ 24,072 |
Liabilities accrued for current year sales | 23,136 | 25,693 | 44,378 | 51,423 |
Settlements of warranty claims | (21,991) | (26,774) | (43,602) | (50,967) |
Balance, end of period | $ 21,705 | $ 24,528 | $ 21,705 | $ 24,528 | $ 21,705
Asbestos [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Pending claims, approximate number | Claim | 1,550 |  | 1,550 |  | 1,550
Payment for settled claims |  |  |  |  | $ 24,800
Increase from low end of range |  |  | $ 4,200 |  |
Increase from high end of range |  |  | 6,300 |  |
Asbestos [Member] | Minimum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | $ 35,200 |  | 35,200 |  | 35,200
Asbestos [Member] | Maximum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | 54,000 |  | 54,000 |  | 54,000
Asbestos [Member] | Discontinued Operations [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Incremental pre-tax provision |  |  | 6,000 |  |
Asbestos [Member] | Discontinued Operations [Member] | Minimum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | 44,300 |  | 44,300 |  | 44,300
Asbestos [Member] | Discontinued Operations [Member] | Maximum [Member] |  |  |  |  |
Contingencies [Abstract] |  |  |  |  |
Range of possible loss | $ 79,600 |  | $ 79,600 |  | $ 79,600

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