ACCOUNTS RECEIVABLE AND RESERVES FOR PRODUCT SALES (Tables)

12 Months Ended

Dec. 31, 2020

Receivables Net Current [Abstract]

Summary of Components of Accounts Receivable

The following table summarizes the components of the Company’s accounts receivable for the periods indicated:

	As of December 31,
	2020		2019
	(in thousands)
Product sales receivable, net of discounts and allowances	$	100,870	$	90,409
Government contract receivables		470		470
Total accounts receivable, net	$	101,340	$	90,879

Summary of Change in Reserves for Discounts and Allowances

The following table summarizes an analysis of the change in reserves for discounts and allowances for the periods indicated:

	Chargebacks			Rebates			Prompt Pay			Other Accruals			Total
	(in thousands)
Balance, as of December 31, 2018	$	1,378		$	24,276		$	538		$	2,318		$	28,510
Provision		9,698			44,749			4,897			9,643			68,987
Payments/credits		(10,488	)		(24,287	)		(3,929	)		(7,290	)		(45,994	)
Balance, as of December 31, 2019	$	588		$	44,738		$	1,506		$	4,671		$	51,503
Provision		9,700			52,180			6,384			10,175			78,439
Payments/credits		(8,007	)		(55,147	)		(5,941	)		(9,877	)		(78,972	)
Balance, as of December 31, 2020	$	2,281		$	41,771		$	1,949		$	4,969		$	50,970

Summary of Total Reserves Included in Consolidated Balance Sheets

The following table summarizes the total reserves above included in the Company’s consolidated balance sheets for the periods indicated:

	As of December 31,
	2020		2019
	(in thousands)
Reduction to accounts receivable	$	8,352	$	6,254
Component of accrued expenses		42,618		45,249
Total reserves	$	50,970	$	51,503