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Other Noncurrent Liabilities | 12 Months Ended
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Dec. 31, 2020
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities | 19. Other Noncurrent Liabilities As of December 31, 2020 and 2019, Other Noncurrent Liabilities consisted of the following:
(in thousands) |  | 2020 |  | 2019
Postretirement benefits other than pensions |  | $ | 44,317 |  |  | $ | 50,576 |
Pension liabilities |  | 35,607 |  |  | 34,638 |
Finance leases |  | 16,121 |  |  | 22,700 |
Operating leases |  | 13,589 |  |  | 14,386 |
Interest rate swap agreements |  | 12,714 |  |  | 5,518 |
Deferred payroll taxes |  | 2,593 |  |  | — |
Incentive and deferred compensation |  | 2,286 |  |  | 2,925 |
Restructuring |  | 287 |  |  | 700 |
Other |  | 2,910 |  |  | 1,282 |
Total |  | $ | 130,424 |  |  | $ | 132,725 |

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- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as noncurrent at the end of the reporting period. + References No definition available. + Details
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- References No definition available. + Details
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