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FAIR VALUE MEASUREMENTS (Tables) | 6 Months Ended
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Jun. 30, 2017
Fair Value Disclosures [Abstract] |
Estimated Fair Value Of Other Financial Assets And Liabilities | The estimated fair values of the Company’s other financial assets and liabilities as of June 30, 2017 and December 31, 2016 were as follows (in thousands):
| Carrying Amount |  | Level 1 |  | Level 2 |  | Level 3
June 30, 2017 |  |  |  |  |  |  |
LIABILITIES |  |  |  |  |  |  |
Long-term debt, including current portion | $ | 223,515 |  |  | $ | — |  |  | $ | 212,389 |  |  | $ | — |
December 31, 2016 |  |  |  |  |  |  |
LIABILITIES |  |  |  |  |  |  |
Long-term debt, including current portion | $ | 232,278 |  |  | $ | — |  |  | $ | 221,808 |  |  | $ | — |

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