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v3.23.1

Equity - Share Repurchases, Dividends, Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Apr. 25, 2023 | Feb. 28, 2023 | Mar. 31, 2023 | Mar. 31, 2022 | Jul. 26, 2022
Share Repurchase Plan |  |  |  |  |
Value of shares authorized by the Board of Directors to be repurchased under share repurchase plan |  |  |  |  | $ 1,000.0
Share repurchases (in shares) |  |  | 160,224 | 113,529 |
Average costs per share |  |  | $ 242.86 | $ 150.97 |
Value of shares repurchased |  |  | $ 38.9 | $ 17.1 |
Remaining value of shares authorized by the Board of Directors to be repurchased under share repurchase plan |  |  | 641.8 |  |
Common Stock and Additional Paid-In (in Shares) |  |  |  |  |
Payments made to tax authorities on employees' behalf |  |  | $ 37.2 | $ 17.1 |
Dividends |  |  |  |  |
Common stock quarterly dividend per share (in dollars per share) |  |  | $ 1.00 | $ 0.875 |
Common stock dividend quarterly declared and paid per share (in dollars per share) | $ 1.00 |  | $ 1.00 | $ 0.875 |
Dividends paid |  |  | $ 59.0 | $ 54.2 |
Additional share-based compensation disclosures |  |  |  |  |
Total unrecognized compensation cost |  |  | $ 123.9 |  |
Unvested RSUs and PSUs expected to be settled through issuance of common stock (in units) |  |  | 772,952 |  |
Common stock to be issued for settlement of unvested RSUs and PSUs (in shares) |  |  | 993,124 |  |
Weighted average recognition period for unrecognized compensation cost (in years) |  |  | 2 years |  |
Common Stock and Additional Paid in Capital |  |  |  |  |
Share Repurchase Plan |  |  |  |  |
Value of shares repurchased |  |  | $ (23.7) | (5.3) |
Restricted stock units (RSUs) |  |  |  |  |
Dividends |  |  |  |  |
Dividend equivalents paid |  |  | $ 3.0 | $ 2.5 |
Additional share-based compensation disclosures |  |  |  |  |
Vesting period (in years) |  | 3 years |  |  |
Changes |  |  |  |  |
Granted (in shares) |  | 109,683 |  |  |
Restricted stock units (RSUs) and performance stock units (PSUs) |  |  |  |  |
Changes |  |  |  |  |
Unvested at the beginning of the year (in units) |  |  | 582,012 |  |
Granted (in shares) |  |  | 193,812 |  |
Vested (in units) |  |  | (870) |  |
Cancelled or forfeited (in units) |  |  | (2,002) |  |
Unvested at the end of the period (in units) |  |  | 772,952 |  |
Shares reserved for future grants (all plans) |  |  | 1,457,448 |  |
Weighted Average Grant Date Fair Value |  |  |  |  |
Unvested at the beginning of the year (in dollars per unit) |  |  | $ 164.60 |  |
Granted (in dollars per unit) |  |  | 247.90 |  |
Vested (in dollars per unit) |  |  | 152.93 |  |
Cancelled or forfeited (in dollars per unit) |  |  | 170.84 |  |
Unvested at the end of the period (in dollars per unit) |  |  | $ 185.48 |  |
Performance stock units (PSUs) |  |  |  |  |
Additional share-based compensation disclosures |  |  |  |  |
Vesting period (in years) |  | 3 years | 3 years |  |
Return on assets result period |  | 3 years | 3 years | 3 years |
Changes |  |  |  |  |
Granted (in shares) |  | 84,129 |  |  |
Performance stock units (PSUs) | Maximum |  |  |  |  |
Stock Based Compensation |  |  |  |  |
Share of Common Stock |  | 2 | 2 | 2 |
All stock-based compensation plans |  |  |  |  |
Common Stock and Additional Paid-In (in Shares) |  |  |  |  |
Payments made to tax authorities on employees' behalf |  |  | $ 37.2 | $ 17.1 |

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