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Share-Based Compensation - Share-based compensation expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share based compensation expense | $ 87,672 | $ 86,580 | $ 69,892
Share based compensation expense, net of tax | 76,526 | 75,667 | 60,345
Options and SARs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share based compensation expense | 11,891 | 12,316 | 11,744
Share based compensation expense, net of tax | 10,726 | 10,927 | 10,388
Restricted Common Shares And Restricted Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share based compensation expense | 50,278 | 46,817 | 41,284
Share based compensation expense, net of tax | 42,346 | 39,349 | 34,599
Performance Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share based compensation expense | 21,510 | 23,696 | 14,729
Share based compensation expense, net of tax | 19,794 | 21,920 | 13,380
Employee Share Purchase Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share based compensation expense | 3,993 | 3,751 | 2,135
Share based compensation expense, net of tax | $ 3,660 | $ 3,471 | $ 1,978

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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