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OTHER ACCRUED LIABILITIES (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Payables and Accruals [Abstract]    
Personnel accruals $ 35,155 $ 45,934
Insurance accruals 10,802 14,289
Property, sales and other non-income related taxes 7,439 8,593
Accrued commission 1,489 3,299
Accrued interest 2,380 5,015
Other 7,252 9,376
Total $ 64,517 $ 86,506