INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived amortizable intangible assets

The following table sets forth amortizable intangible assets as of September 30, 2022 and December 31, 2021 (in thousands):

	September 30, 2022		December 31, 2021
Finite-lived intangible assets	$	306,787	$	283,557
Less: accumulated amortization	(158,254)		(136,058)
Net carrying value	$	148,533	$	147,499

Schedule of amortization expense

The following table summarizes amortization expense for the three and nine months ended September 30, 2022 and 2021 (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Research and development	$	1,906	$	292	$	3,817	$	866
Selling, general and administrative	6,163		6,052		18,379		17,566
Total amortization expense	$	8,069	$	6,344	$	22,196	$	18,432