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v3.23.2

Equity (Tables) | 6 Months Ended
--- | ---
Jun. 30, 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 | ​ | (2,867) | ​ | ​ | 156.80
Cancelled or forfeited | ​ | (7,876) | ​ | ​ | 176.98
Unvested at June 30, 2023 | ​ | 765,081 | ​ | $ | 185.60
Shares reserved for future grants (all plans) | ​ | 1,458,557 | ​ | ​ | ​
(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
Second quarter | ​ | 308,454 | ​ | ​ | 239.55 | ​ | ​ | 73.9 | ​ | 1,085,635 | ​ | ​ | 178.61 | ​ | ​ | 193.9
​ | ​ | 468,678 | ​ | $ | 240.68 | ​ | $ | 112.8 | ​ | 1,199,164 | ​ | $ | 176.00 | ​ | $ | 211.0
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 | ​ | 1.2 | ​ | ​ | (1.5) | ​ | ​ | (0.3)
Balance as of June 30, 2023 | $ | (82.8) | ​ | $ | (3.8) | ​ | $ | (86.6)

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