STOCKHOLDERS' EQUITY (Notes)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

STOCKHOLDERS' EQUITY

STOCKHOLDERS’ EQUITY

Stock-Based Compensation

Information with respect to the Company’s non-vested restricted stock units for the three months ended March 31, 2022 was as follows:

	Number of Restricted Stock Units	Weighted- Average Grant-Date Fair Value	Weighted- Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)	Shares Retained to Cover Statutory Minimum Withholding Taxes
Non-vested at January 1, 2022	1,061,834	$16.60			—
Granted	164,405	31.22			—
Vested	(235,721)	11.20			(136,435)
Forfeited	(19,976)	17.62			—
Outstanding at March 31, 2022	970,542	$20.37	0.91	$33,833

Information with respect to the Company’s non-vested performance-based restricted stock units for the three months ended March 31, 2022 was as follows:

	Number of Performance-based Restricted Stock Units	Weighted- Average Grant-Date Fair Value	Weighted- Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)	Shares Retained to Cover Statutory Minimum Withholding Taxes
Non-vested at January 1, 2022	579,364	$13.20			—
Granted	296,405	22.69			—
Vested	(454,804)	10.19			(254,596)
Forfeited	(3,448)	26.38			—
Non-vested at March 31, 2022	417,517	$23.11	1.46	$14,555

The following table sets forth stock-based compensation expense by award type for the three months ended March 31, 2022 and 2021 (in thousands):

	Three Months Ended March 31,
	2022		2021
Share-based compensation expense by type:
Time-based Restricted Stock Units	$	2,428	$	2,437
Performance-based Restricted Stock Units	948		656
ESPP	46		29
Total share-based compensation expense	$	3,422	$	3,122

Stock-based compensation was included in the following captions in the Company’s condensed consolidated statements of operations for the three months ended March 31, 2022 and 2021 (in thousands):

	Three Months Ended March 31,
	2022		2021
Cost of revenues	$	426	$	440
Research and development expenses	350		521
Marketing and selling expenses	598		602
General and administrative expenses	2,048		1,559
Total share-based compensation expense	$	3,422	$	3,122