Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS - Net value and Fair Value of Long-term Debt (Details)

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FAIR VALUE MEASUREMENTS - Net value and Fair Value of Long-term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Long-term debt, net value $ 720,317 $ 730,898
Long-term debt, fair value 724,372 718,294
Term Loan [Member]    
Long-term debt, net value 172,121 183,314
Long-term debt, fair value 173,210 190,579
Senior Second Lien Notes Due November 2023 [Member]    
Long-term debt, net value 548,196 547,584
Long-term debt, fair value $ 551,162 $ 527,715