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Share-Based Compensation - Summary of Share-Based Compensation (income) expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Summary of share-based compensation expense |  |  |  |  |
Share-based compensation expense before income tax |  | $ 2,847 | $ 3,303 | $ 5,912 | $ 5,469
Income tax benefit | [1] | (44) | (30) | (66) | (47)
Share-based compensation expense, net of income tax |  | 2,803 | 3,273 | 5,846 | 5,422
Performance-based Restricted Stock Units |  |  |  |  |
Summary of share-based compensation expense |  |  |  |  |
Share-based compensation expense before income tax |  | 819 | 705 | 1,641 | 719
Restricted Stock Awards And Restricted Stock Units |  |  |  |  |
Summary of share-based compensation expense |  |  |  |  |
Share-based compensation expense before income tax |  | 1,681 | 1,787 | 3,324 | 3,349
Stock Options |  |  |  |  |
Summary of share-based compensation expense |  |  |  |  |
Share-based compensation expense before income tax |  | $ 347 | $ 811 | $ 947 | $ 1,401
[1] | The 2023 and 2022 income tax benefit amount primarily reflects the tax benefit associated with our Canadian-based employees.

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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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