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v3.20.1

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | ---
Shares Outstanding at Dec. 31, 2018 |  | 52.5 |  |  |
Total stockholders’ equity at Dec. 31, 2018 | $ 1,182.1 | $ 0.5 | $ 601.8 | $ 586.1 | $ (6.3)
Vesting of restricted stock units, shares |  | 0.2 |  |  |
Vesting of restricted stock units, value | (5.5) |  | (5.5) |  |
Employee stock purchase plan, shares |  | 0.1 |  |  |
Employee stock purchase plan, value | 6.9 |  | 6.9 |  |
Stock-based compensation expense | 10.0 |  | 10.0 |  |
Foreign currency translation adjustments | (1.1) |  |  |  | (1.1)
Net income | 34.9 |  |  | 34.9 |
Shares Outstanding at Mar. 31, 2019 |  | 52.8 |  |  |
Total stockholders’ equity at Mar. 31, 2019 | 1,227.3 | $ 0.5 | 613.2 | 621.0 | (7.4)
Shares Outstanding at Dec. 31, 2019 |  | 52.9 |  |  |
Total stockholders’ equity at Dec. 31, 2019 | 1,376.2 | $ 0.5 | 638.0 | 744.7 | (7.0)
Vesting of restricted stock units, shares |  | 0.1 |  |  |
Vesting of restricted stock units, value | (4.9) |  | (4.9) |  |
Employee stock purchase plan, shares |  | 0.2 |  |  |
Employee stock purchase plan, value | 5.9 |  | 5.9 |  |
Stock-based compensation expense | $ 8.9 |  | 8.9 |  |
Stock Repurchased and Retired During Period, Shares | (0.8) |  |  |  |
Stock Repurchased and Retired During Period, Value | $ (27.9) |  | (9.2) | (18.7) |
Foreign currency translation adjustments | (2.5) |  |  |  | (2.5)
Net income | 43.8 |  |  | 43.8 |
Shares Outstanding at Mar. 31, 2020 |  | 52.4 |  |  |
Total stockholders’ equity at Mar. 31, 2020 | $ 1,399.5 | $ 0.5 | $ 638.7 | $ 769.8 | $ (9.5)

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