SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) - SEC Schedule, 12-09, Allowance, Credit Loss [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Beginning Balance	$ 8,408	$ 8,901	$ 9,798
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	17,633	24,846	26,266
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	17,747	25,339	27,163
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance	$ 8,294	$ 8,408	$ 8,901