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v3.23.2

Share-based Payments (Summary of Stock Option Activity) (Details) $ / shares in Units, $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares
Employee Stock Option [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Outstanding beginning balance, Common shares under option | 2,730,295 |
Granted, Common shares under option | 0 |
Assumed in acquisition, Common shares under option | 187,727 |
Exercised, Common shares under option | (101,074) |
Forfeited, Common shares under option | (61,935) |
Expired, Common shares under option | (6,614) |
Outstanding ending balance, Common shares under option | 2,748,399 | 2,730,295
Exercisable, Common shares under option | 2,070,214 |
Outstanding beginning balance, Weighted average exercise price (per share) | $ / shares | $ 46.88 |
Assumed in acquisition, Weighted average exercise price (per share) | $ / shares | 50.96 |
Exercised, Weighted average exercise price (per share) | $ / shares | 38.59 |
Forfeited, Weighted average exercise price (per share) | $ / shares | 45.96 |
Expired, Weighted average exercise price (per share) | $ / shares | 61.55 |
Outstanding ending balance, Weighted average exercise price (per share) | $ / shares | 47.44 | $ 46.88
Exercisable, Weighted average exercise price (per share) | $ / shares | $ 44.03 |
Outstanding, Weighted average remaining contractual life (in years) | 6 years 4 months 24 days | 7 years 3 months 18 days
Exercisable, Weighted average remaining contractual life (in years) | 5 years 9 months 18 days |
Outstanding beginning balance, Aggregate intrinsic value | $ | $ 31.2 |
Exercised, Aggregate intrinsic value | $ | 1.7 |
Outstanding ending balance, Aggregate intrinsic value | $ | 35.6 | $ 31.2
Exercisable, Aggregate intrinsic value | $ | $ 33.6 |
Premium-priced Stock Options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Outstanding beginning balance, Common shares under option | 1,118,432 |
Granted, Common shares under option | 0 |
Forfeited, Common shares under option | (54,423) |
Outstanding ending balance, Common shares under option | 1,064,009 | 1,118,432
Exercisable, Common shares under option | 43,242 |
Outstanding beginning balance, Weighted average exercise price (per share) | $ / shares | $ 91.26 |
Forfeited, Weighted average exercise price (per share) | $ / shares | 91.12 |
Outstanding ending balance, Weighted average exercise price (per share) | $ / shares | 91.27 | $ 91.26
Exercisable, Weighted average exercise price (per share) | $ / shares | $ 91.21 |
Outstanding, Weighted average remaining contractual life (in years) | 4 years 1 month 6 days | 4 years 8 months 12 days
Exercisable, Weighted average remaining contractual life (in years) | 1 year 8 months 12 days |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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