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FAIR VALUE (Tables) | 3 Months Ended
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Mar. 31, 2019
FAIR VALUE |
Schedule of financial assets that are accounted for at fair value on a recurring basis | The following table presents the Company’s financial assets that are accounted for at fair value on a recurring basis as of March 31, 2019 and December 31, 2018, respectively, by level within the fair value hierarchy (in thousands):
|  | March 31, 2019
|  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |  |
Pension plan assets |  | $ | 5,603 |  | $ | — |  | $ | —
Other long-term assets |  |  | 4,340 |  |  | — |  |  | —
Interest rate swaps |  |  | — |  |  | 223 |  |  | —
|  | December 31, 2018
|  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |  |
Pension plan assets |  | $ | 5,231 |  | $ | — |  | $ | —
Other long-term assets |  |  | 3,962 |  |  | — |  |  | —
Interest rate swaps |  |  | — |  |  | 434 |  |  | —

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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