OTHER SUPPLEMENTAL INFORMATION - Noncash Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Costs for additions to property and equipment acquired in a note payable	$ 9,974
Costs for additions to property and equipment acquired in a capital lease		$ 1,504
Proceeds from sale of property and equipment in accounts receivable	1,015
Accrual for stock issued for services	$ 478