STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock Based Compensation

The following table summarizes stock-based compensation expenses included in operating costs and expenses:

	Three Months Ended March 31,
(In thousands)	2020		2019
Research and development	$	16,049	$	16,125
Selling, general and administrative	18,529		15,907
Total	$	34,578	$	32,032