Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE (Details)

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FAIR VALUE (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notes receivable, fair value $ 6,900 $ 7,700
Long-term debt 379,104 382,040
Senior Notes | Senior Term Loan, Maturing January 3, 2023    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt fair value 275,200 278,000
Long-term debt $ 274,600 $ 279,400