PRODUCT REVENUE AND RESERVES FOR VARIABLE CONSIDERATION - Product Revenue Allowance and Reserve Categories (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 38,102	$ 35,258
Current provisions related to sales in current year	69,822	76,538
Adjustments related to prior year sales	(1,888)	(409)
Credits/payments made	(77,047)	(77,474)
Ending balance	28,989	33,913
Chargebacks and Discounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	1,259	1,047
Current provisions related to sales in current year	7,485	8,544
Adjustments related to prior year sales	92	(248)
Credits/payments made	(7,993)	(8,194)
Ending balance	843	1,149
Rebates, Fees and other Deductions
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	25,947	24,173
Current provisions related to sales in current year	58,824	63,938
Adjustments related to prior year sales	(1,924)	33
Credits/payments made	(59,318)	(65,611)
Ending balance	23,529	22,533
Product Returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	10,896	10,038
Current provisions related to sales in current year	3,513	4,056
Adjustments related to prior year sales	(56)	(194)
Credits/payments made	(9,736)	(3,669)
Ending balance	$ 4,617	$ 10,231