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Capital Stock and Reserves - Stock-based Compensation by Plan Type (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
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type | $ 6,823 | $ 7,637 | $ 11,882 | $ 13,689
Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type |  | 122 | 84 | 329
Restricted Share Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type | 3,829 | 4,478 | 7,194 | 7,889
Performance Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type | 2,001 | 1,724 | 2,925 | 3,453
IMAX China Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type | 1 | 24 | 11 | 58
IMAX China Long Term Incentive Plan Restricted Share Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type | 848 | 1,093 | 1,389 | 1,590
IMAX China Long Term Incentive Plan Performance Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense by plan type | $ 144 | $ 196 | $ 279 | $ 370

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