STOCK-BASED COMPENSATION - Weighted-Average Assumptions for Options and ESPP Subscriptions Granted (Details) - $ / shares |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2022 |
Jun. 30, 2021 |
Jun. 30, 2022 |
Jun. 30, 2021 |
|
Option Awards | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Average risk-free interest rate (as a percent) | 3.00% | 0.80% | 3.00% | 0.80% |
Expected dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
Expected volatility (as a percent) | 31.40% | 33.50% | 31.40% | 33.50% |
Expected term (years) | 5 years | 5 years | 5 years | 5 years |
Fair value, per option (in dollars per share) | $ 35.07 | $ 28.60 | $ 35.08 | $ 28.54 |
ESPP | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Average risk-free interest rate (as a percent) | 1.10% | 0.00% | 0.30% | 0.10% |
Expected dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
Expected volatility (as a percent) | 31.50% | 32.30% | 32.10% | 36.80% |
Expected term (years) | 7 months 6 days | 7 months 6 days | 7 months 6 days | 7 months 6 days |
Fair value, per option (in dollars per share) | $ 23.63 | $ 26.03 | $ 28.63 | $ 22.65 |