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STOCK AWARD PLANS (Tables)
 9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-based Compensation A summary of our total compensation expense recognized in our condensed consolidated statements of operations and comprehensive income for stock-based compensation is as follows (in thousands):
Three Months Ended September 30,Nine Months Ended September 30,
2022202120222021
Stock options$3,262 $4,070 $9,744 $12,064 
Stock awards21,788 36,012 65,738 79,361 
Company expense on ESPP discount761 730 2,864 2,537 
Total stock-based compensation expense$25,811 $40,812 $78,346 $93,962 
Schedule Employee Stock Purchase Plan Activity The following is a summary of the employee stock purchase plan activity (dollars in thousands): 
Three Months Ended September 30, 2022
Shares purchased
by employees
Aggregate cost
to employees
Expense recognized
by the company
52,660 $4,311 $761