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Other Noncurrent Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2020
Other Liabilities Disclosure [Abstract] |
Schedule of Other Noncurrent Liabilities | The components of other noncurrent liabilities as of September 30, 2020 and December 31, 2019 were:
| September 30, 2020 |  | December 31, 2019
Pension and retiree medical obligations | $ | 86,325 |  |  | $ | 87,478 |
Transition tax payable | 14,208 |  |  | 11,292 |
Liability for uncertain tax positions | 1,071 |  |  | 3,008 |
Deferred revenue | 5,100 |  |  | 2,129 |
Lease liability | 93,507 |  |  | 69,928 |
Other | 23,120 |  |  | 23,533 |
Total other noncurrent liabilities | $ | 223,331 |  |  | $ | 197,368 |

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