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STOCK AWARD PLANS (Tables)
 3 Months Ended
Mar. 31, 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 March 31,
20222021
Stock options$3,219 $3,967 
Stock awards20,063 18,948 
Company expense on ESPP discount1,324 1,074 
Total stock-based compensation expense$24,606 $23,989 
Schedule Employee Stock Purchase Plan Activity The following is a summary of the employee stock purchase plan activity (dollars in thousands): 
Three Months Ended March 31, 2022
Shares purchased
by employees
Aggregate cost
to employees
Expense recognized
by the company
81,951 $7,503 $1,324