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Share Based Compensation - Exercise price ranges (Details) shares in Thousands, Option in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 Option shares $ / shares | Dec. 31, 2022 Option $ / shares shares | Dec. 31, 2021 Option $ / shares
Share Based Compensation |  |  |
Number of share options | Option | 17,036 | 21,068 | 37,090
Weighted average remaining contractual life | 3 years |  |
Weighted Average Exercise Price | $ 39.32 | $ 38.55 | $ 38.39
Number of exercisable share option | Option | 14,300 | 16,407 |
Weighted Average Exercise Price Exercisable | $ 39.61 | $ 40.19 |
Common shares authorized for issuance | shares | 27,322 | 27,901 |
22.00-23.27 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 1,980 |  |
Weighted average remaining contractual life | 3 years |  |
Weighted Average Exercise Price | $ 22.65 |  |
Number of exercisable share option | shares | 1,422 |  |
Weighted Average Exercise Price Exercisable | $ 22.66 |  |
22.00-23.27 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 22.63 |  |
22.00-23.27 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 24.99 |  |
23.28-24.99 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 4 |  |
Weighted average remaining contractual life | 4 years |  |
Weighted Average Exercise Price | $ 28.86 |  |
Number of exercisable share option | Option | 1 |  |
Weighted Average Exercise Price Exercisable | $ 27.21 |  |
23.28-24.99 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 25.00 |  |
23.28-24.99 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 29.99 |  |
30.00-34.99 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 19 |  |
Weighted Average Exercise Price | $ 31.26 |  |
Number of exercisable share option | Option | 16 |  |
Weighted Average Exercise Price Exercisable | $ 31.09 |  |
30.00-34.99 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 30.00 |  |
30.00-34.99 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 34.99 |  |
35.00-39.99 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 5,414 |  |
Weighted average remaining contractual life | 3 years |  |
Weighted Average Exercise Price | $ 38.35 |  |
Number of exercisable share option | Option | 4,429 |  |
Weighted Average Exercise Price Exercisable | $ 38.59 |  |
35.00-39.99 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 35.00 |  |
35.00-39.99 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 39.99 |  |
40.00-44.99 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 8,239 |  |
Weighted average remaining contractual life | 1 year |  |
Weighted Average Exercise Price | $ 42.83 |  |
Number of exercisable share option | Option | 8,117 |  |
Weighted Average Exercise Price Exercisable | $ 42.83 |  |
40.00-44.99 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 40.00 |  |
40.00-44.99 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 44.99 |  |
45.00-49.99 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 1,291 |  |
Weighted average remaining contractual life | 5 years |  |
Weighted Average Exercise Price | $ 45.76 |  |
Number of exercisable share option | Option | 231 |  |
Weighted Average Exercise Price Exercisable | $ 46.26 |  |
45.00-49.99 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 45.00 |  |
45.00-49.99 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 49.99 |  |
50.00-54.27 |  |  |
Share Based Compensation |  |  |
Number of share options | Option | 89 |  |
Weighted average remaining contractual life | 2 years |  |
Weighted Average Exercise Price | $ 52.79 |  |
Number of exercisable share option | Option | 84 |  |
Weighted Average Exercise Price Exercisable | $ 52.84 |  |
50.00-54.27 | Minimum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | 50.00 |  |
50.00-54.27 | Maximum |  |  |
Share Based Compensation |  |  |
Exercise price (in dollars per share) | $ 54.27 |  |

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