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Share-based Compensation - RSU, DSU, and PSU Activity (Details) - $ / shares | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021
RSUs and DSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |  |
Nonvested beginning balance (shares) | 301,000 | 243,000
Granted (shares) | 179,000 |
Vested (shares) | (95,000) |
Forfeited (shares) | (26,000) |
Nonvested ending balance (shares) | 301,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value |  |
Weighted average grant date fair value (per share), beginning balance | $ 67.36 |
Weighted average grant date fair value (per share) granted | 66.42 |
Weighted average grant date fair value (per share) vested | 71.62 |
Weighted average grant date fair value (per share) forfeited | 63.32 |
Weighted average grant date fair value (per share), ending balance | $ 6.04 | $ 67.36
RSUs and DSUs | Non-Employee Director |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |  |
Nonvested beginning balance (shares) | 5,715 |
Nonvested ending balance (shares) | 5,715 |
Performance Shares (PSUs) |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |  |
Nonvested beginning balance (shares) | 193,000 | 166,000
Granted (shares) | 83,000 |
Vested (shares) | 0 |
Forfeited (shares) | (56,000) |
Nonvested ending balance (shares) | 193,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value |  |
Weighted average grant date fair value (per share), beginning balance | $ 65.91 |
Weighted average grant date fair value (per share) granted | 68.23 |
Weighted average grant date fair value (per share) vested | 0 |
Weighted average grant date fair value (per share) forfeited | 82.96 |
Weighted average grant date fair value (per share), ending balance | $ 61.88 | $ 65.91
Vesting period | 3 years |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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 (c)(2)(iii)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average intrinsic value of award forfeited under share-based payment arrangement. Excludes share and unit options. + 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 (c)(2)(iii)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options. + 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 (c)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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