SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Percentage of Revenue Comprised of the Three Largest Customers

The table below includes the percentage of revenues comprised by the Company’s three largest wholesalers in each period presented:

	Year Ended December 31,
	2021		2020		2019
Largest wholesaler	31	%	31	%	34	%
Second largest wholesaler	28	%	31	%	29	%
Third largest wholesaler	26	%	25	%	26	%
Total	85	%	87	%	89	%

Schedule of Useful Lives by Asset Category

Useful lives by asset category are as follows:

Asset Category	Useful Life
Computer equipment and software	1 to 3 years
Office furniture and equipment	5 years
Manufacturing and laboratory equipment	5 to 10 years

Fixed assets, net, summarized by major category, consist of the following (in thousands):

	December 31,
	2021		2020
Machinery and equipment	$	117,264	$	74,966
Leasehold improvements	59,740		54,434
Computer equipment and software	13,197		12,170
Office furniture and equipment	2,883		2,387
Construction in progress	80,557		71,091
Total	273,641		215,048
Less: accumulated depreciation	(85,240)		(78,360)
Fixed assets, net	$	188,401	$	136,688