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v3.23.1

Equity (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Equity |
Summary of the status of the Company's restricted stock units and changes during the quarter | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average
​ | ​ | RSU and PSU | ​ | Grant Date
​ | ​ | Aggregate Units | ​ | Fair Value
Unvested at January 1, 2023 | ​ | 582,012 | ​ | $ | 164.60
Granted(1) | ​ | 193,812 | ​ | ​ | 247.90
Vested | ​ | (870) | ​ | ​ | 152.93
Cancelled or forfeited | ​ | (2,002) | ​ | ​ | 170.84
Unvested at March 31, 2023 | ​ | 772,952 | ​ | $ | 185.48
Shares reserved for future grants (all plans) | ​ | 1,457,448 | ​ | ​ | ​
(1) | Comprised of 109,683 RSUs and 84,129 PSUs granted in February 2023. The service-based RSUs cliff vest on December 1, 2025 and the performance-based RSUs are subject to a 3-year performance period ending December 31, 2025.
Schedule of share repurchase activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022
​ | ​ | ​ | ​ | Average Cost | ​ | ​ | ​ | ​ | ​ | ​ | Average Cost | ​ | ​ | ​
​ | ​ | Shares | ​ | Per Share | ​ | Amount | ​ | Shares | ​ | Per Share | ​ | Amount
​ | ​ | ​ | ​ | ​ | ​ | ​ | (in millions) | ​ | ​ | ​ | ​ | ​ | ​ | (in millions)
First quarter | ​ | 160,224 | ​ | $ | 242.86 | ​ | $ | 38.9 | ​ | 113,529 | ​ | $ | 150.97 | ​ | $ | 17.1
​
Schedule of accumulated other comprehensive loss | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Pension and | ​ | ​
​ | Foreign Currency | ​ | Postretirement Benefit | ​ | Accumulated Other
​ | Translation | ​ | Plan Adjustments, | ​ | Comprehensive
​ | (Loss) Gain |  | Net of Tax |  | Loss
​ | ​ | ​ | ​ | (in millions) | ​ | ​ | ​
Balance as of January 1, 2023 | $ | (84.0) | ​ | $ | (2.3) | ​ | $ | (86.3)
Current-period change | ​ | 0.6 | ​ | ​ | (0.8) | ​ | ​ | (0.2)
Balance as of March 31, 2023 | $ | (83.4) | ​ | $ | (3.1) | ​ | $ | (86.5)
​

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