ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share
Net income (loss) attributable to common stockholders	$ 15,034	$ 17,866	$ 31,403	$ 17,873
Denominator:
Denominator for basic net income (loss) per share - weighted average outstanding shares	50,806,346	49,789,892	50,994,612	49,124,056
Effect of dilutive securities:
Stock options and restricted stock	3,852,197	3,991,026	3,877,351	4,062,563
Denominator for diluted net income (loss) per share - weighted-average outstanding shares	54,658,543	53,780,918	54,871,963	53,186,619
Net income (loss) attributable to common stockholders per share - basic	$ 0.30	$ 0.36	$ 0.62	$ 0.36
Net income (loss) attributable to common stockholders per share -diluted	$ 0.28	$ 0.33	$ 0.57	$ 0.34