CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Paid-in Capital | Retained Earnings | Other |
Common Stock, Shares | | 52.9 | | | |
Total stockholders’ equity at Dec. 31, 2020 | $ 1,587.1 | $ 0.5 | $ 661.3 | $ 926.3 | $ (1) |
Stock-based compensation expense | 41.7 | | 41.7 | | |
Employee stock purchase plan, shares | | 0.2 | | | |
Employee stock purchase plan, value | 14.3 | | 14.3 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (13.9) | | (13.9) | | |
Vesting of restricted stock units, shares | | 0.4 | | | |
Stock Repurchased and Retired During Period, Shares | | (1.2) | | | |
Stock Repurchased and Retired During Period, Value | (120.4) | | (14.7) | (105.7) | |
Foreign currency translation adjustments | 0.7 | | | | 0.7 |
Net income | 324.9 | | | 324.9 | |
Shares Outstanding at Sep. 30, 2021 | | 52.3 | | | |
Total stockholders’ equity at Sep. 30, 2021 | 1,834.4 | $ 0.5 | 688.7 | 1,145.5 | (0.3) |
Common Stock, Shares | | 53.2 | | | |
Total stockholders’ equity at Jun. 30, 2021 | 1,719.8 | $ 0.5 | 683 | 1,039.2 | (2.9) |
Stock-based compensation expense | 20.5 | | 20.5 | | |
Employee stock purchase plan, shares | | 0.1 | | | |
Employee stock purchase plan, value | 6.6 | | 6.6 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (6.7) | | (6.7) | | |
Vesting of restricted stock units, shares | | 0.2 | | | |
Stock Repurchased and Retired During Period, Shares | | (1.2) | | | |
Stock Repurchased and Retired During Period, Value | (120.4) | | (14.7) | (105.7) | |
Foreign currency translation adjustments | 2.6 | | | | 2.6 |
Net income | 212 | | | 212 | |
Shares Outstanding at Sep. 30, 2021 | | 52.3 | | | |
Total stockholders’ equity at Sep. 30, 2021 | 1,834.4 | $ 0.5 | 688.7 | 1,145.5 | (0.3) |
Total stockholders’ equity at Dec. 31, 2021 | 1,865.4 | $ 0.5 | 690.8 | 1,174.4 | (0.3) |
Stock-based compensation expense | 35.9 | | 35.9 | | |
Employee stock purchase plan, shares | | 0.4 | | | |
Employee stock purchase plan, value | 18.9 | | 18.9 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (12.9) | | (12.9) | | |
Vesting of restricted stock units, shares | | 0 | | | |
Stock Repurchased and Retired During Period, Shares | | (2.2) | | | |
Stock Repurchased and Retired During Period, Value | (226.8) | | (30) | (196.8) | |
Foreign currency translation adjustments | (3.9) | | | | (3.9) |
Net income | 212.5 | | | 212.5 | |
Shares Outstanding at Sep. 30, 2022 | | 50 | | | |
Total stockholders’ equity at Sep. 30, 2022 | 1,889.1 | $ 0.5 | 702.7 | 1,190.1 | (4.2) |
Common Stock, Shares | | 50.4 | | | |
Total stockholders’ equity at Jun. 30, 2022 | 1,856.1 | $ 0.5 | 692.1 | 1,165.5 | (2) |
Stock-based compensation expense | 11.9 | | 11.9 | | |
Employee stock purchase plan, shares | | 0.2 | | | |
Employee stock purchase plan, value | 8.5 | | 8.5 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (1.6) | | (1.6) | | |
Vesting of restricted stock units, shares | | 0 | | | |
Stock Repurchased and Retired During Period, Shares | | (0.6) | | | |
Stock Repurchased and Retired During Period, Value | (56.8) | | (8.2) | (48.6) | |
Foreign currency translation adjustments | (2.2) | | | | (2.2) |
Net income | 73.2 | | | 73.2 | |
Shares Outstanding at Sep. 30, 2022 | | 50 | | | |
Total stockholders’ equity at Sep. 30, 2022 | $ 1,889.1 | $ 0.5 | $ 702.7 | $ 1,190.1 | $ (4.2) |