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Other Noncurrent Liabilities | 9 Months Ended
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Sep. 30, 2018
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities | Other Noncurrent Liabilities The components of other noncurrent liabilities as of September 30, 2018 and December 31, 2017 were:
| September 30, 2018 |  | December 31, 2017
Pension and retiree medical obligations | $ | 85,743 |  |  | $ | 99,646 |
Transition tax payable | 25,510 |  |  | 27,877 |
Liability for uncertain tax positions | 1,047 |  |  | 1,047 |
Deferred revenue | 3,271 |  |  | 3,297 |
Liability for construction of new leased facility | 11,616 |  |  | — |
Contingent consideration for acquisition | 3,375 |  |  | — |
Other | 24,063 |  |  | 23,818 |
Total other noncurrent liabilities | $ | 154,625 |  |  | $ | 155,685 |

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