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v3.21.2

Other Noncurrent Liabilities | 9 Months Ended
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Sep. 30, 2021
Payables and Accruals [Abstract] |
Other Noncurrent Liabilities | Other Noncurrent Liabilities Other noncurrent liabilities include the following:
| September 30, 2021 |  | September 30, 2020 |  | December 31, 2020
| (In thousands)
Benefit plan liabilities | $ | 202,601 |  |  | $ | 203,295 |  |  | $ | 225,957 |
Deferred income tax liability | 38,850 |  |  | 61,870 |  |  | 60,892 |

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