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v3.23.1

Unaudited Condensed Consolidated Statement Of Shareholders' Equity - USD ($) $ in Millions | Total | Common Stock | Additional Paid-In Capital | Retained Earnings | Treasury Stock
--- | --- | --- | --- | --- | ---
BALANCE at period start (in shares) at Dec. 31, 2021 |  | 86,562,149 |  |  |
BALANCE at period start at Dec. 31, 2021 | $ 2,377.0 | $ 0.8 | $ 3.2 | $ 4,639.9 | $ (2,266.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 362.1 |  |  | 362.1 |
Repurchases of common stock, including excise tax | (380.9) |  |  |  | (380.9)
Stock-based compensation expense | 15.9 |  | 15.9 |  |
Shares awarded under stock-based compensation plans, net of shares withheld for taxes | (28.5) |  | (16.7) | (58.1) | 46.3
BALANCE at period end (in shares) at Mar. 31, 2022 |  | 86,562,149 |  |  |
BALANCE at period end at Mar. 31, 2022 | 2,345.6 | $ 0.8 | 2.4 | 4,943.9 | (2,601.5)
BALANCE at period start (in shares) at Dec. 31, 2022 |  | 63,562,149 |  |  |
BALANCE at period start at Dec. 31, 2022 | 2,047.8 | $ 0.6 | 3.1 | 3,663.7 | (1,619.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 288.7 |  |  | 288.7 |
Repurchases of common stock, including excise tax | (307.5) |  |  |  | (307.5)
Stock-based compensation expense | 15.1 |  | 15.1 |  |
Shares awarded under stock-based compensation plans, net of shares withheld for taxes | (23.8) |  | (15.2) | (41.8) | 33.2
BALANCE at period end (in shares) at Mar. 31, 2023 |  | 63,562,149 |  |  |
BALANCE at period end at Mar. 31, 2023 | $ 2,020.3 | $ 0.6 | $ 3.0 | $ 3,910.6 | $ (1,893.9)

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