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Other Non-Current Liabilities | 12 Months Ended
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Dec. 31, 2019
Other Liabilities Disclosure [Abstract] |
Other Non-Current Liabilities | 16. Other Non-Current Liabilities The composition of other non-current liabilities was as follows:
|  | December 31 |
(In thousands) |  | 2019 |  |  | 2018 |
Deferred revenue |  | $ | 891 |  |  | $ | 1,215 |
Environmental and legal matters |  |  | 12,023 |  |  |  | 20,404 |
Deferred compensation liability |  |  | 49,835 |  |  |  | 43,819 |
Pension liability |  |  | 19,407 |  |  |  | 26,722 |
Other non-current liabilities |  |  | 14,024 |  |  |  | 11,704 |
Total other non-current liabilities |  | $ | 96,180 |  |  | $ | 103,864 |

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- Definition The entire disclosure for other liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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