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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Fair Values and Related Carrying Values of Debt | At December 31, 2018 and 2017, the fair values and related carrying values of debt, including current maturities, were as follows (the fair value and carrying value amounts are presented without regard to unamortized debt issuance costs of $978,000, and $987,000 as of December 31, 2018 and 2017, respectively):
(In thousands) |  | December 31 |
|  | 2018 |  |  | 2017 |
Fair value |  | $ | 274,119 |  |  | $ | 293,272 |
Carrying value |  |  | 277,058 |  |  |  | 291,786 |
Financial Assets and Liabilities Measured on a Recurring Basis at Fair Value | The following tables present financial assets and liabilities measured on a recurring basis at fair value as of December 31, 2018 and 2017, and the level within the fair value hierarchy in which the fair value measurement falls:
(In thousands) |  | December 2018 |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Mutual fund assets |  | $ | 25,082 |  |  | $ | 25,082 |  |  | $ | — |  |  | $ | — |
Derivative assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency contracts |  |  | 185 |  |  |  | — |  |  |  | 185 |  |  |  | — |
Total assets at fair value |  | $ | 25,267 |  |  | $ | 25,082 |  |  | $ | 185 |  |  | $ | — |
Derivative liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency contracts |  | $ | 10 |  |  | $ | — |  |  | $ | 10 |  |  | $ | — |
Total liabilities at fair value |  | $ | 10 |  |  | $ | — |  |  | $ | 10 |  |  | $ | — |
(In thousands) |  | December 2017 |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Mutual fund assets |  | $ | 28,270 |  |  | $ | 28,270 |  |  | $ | — |  |  | $ | — |
Derivative assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency contracts |  |  | 335 |  |  |  | — |  |  |  | 335 |  |  |  | — |
Total assets at fair value |  | $ | 28,605 |  |  | $ | 28,270 |  |  | $ | 335 |  |  | $ | — |
Derivative liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency contracts |  | $ | 94 |  |  | $ | — |  |  | $ | 94 |  |  | $ | — |
Total liabilities at fair value |  | $ | 94 |  |  | $ | — |  |  | $ | 94 |  |  | $ | — |

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + 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 3 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19279-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=99377789&loc=SL7498348-110258 Reference 4: 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 5: 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 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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