VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts receivable allowances
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Balance at Beginning of Period	$ 9,543	$ 12,060	$ 9,533
Additions	324,542	229,509	168,945
Deductions Charged to Reserves	(310,668)	(232,026)	(166,418)
Balance at End of Period	23,417	9,543	12,060
Rebates, fees and returns reserves
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Balance at Beginning of Period	81,868	103,846	90,809
Additions	321,210	272,913	257,273
Deductions Charged to Reserves	(283,653)	(294,891)	(244,236)
Balance at End of Period	119,425	81,868	103,846
Valuation allowance for deferred tax assets
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Balance at Beginning of Period	114,516	4,740	1,429
Additions	104,858	109,800	3,875
Deductions Charged to Reserves	(1,083)	(24)	(564)
Balance at End of Period	$ 218,291	$ 114,516	$ 4,740