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Employees Pension and Postretirement Benefits - Additional Information (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Sep. 19, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Deferred Compensation Plan [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Deferred compensation plan description |  |  |  | The Company maintained a nonqualified deferred compensation benefit plan (the “Retirement Plan”) covering the former CEO of IMAX Entertainment and Senior Executive Vice President of the Company. Under the terms of the Retirement Plan, the benefits were due to vest in full if the executive incurred a separation from service from the Company (as defined therein). |  |
Deferred Compensation Plan [Member] | Accrued and Other Liabilities [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Benefit obligation recorded |  | $ 4,000,000.0 |  | $ 4,000,000.0 |  | $ 3,900,000
Deferred Compensation Plan [Member] | Prepaid Expenses [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Company-owned life insurance |  | 3,500,000 |  | $ 3,500,000 |  | 3,400,000
Richard L. Gelfond [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Benefit payable | $ 20,300,000 |  |  |  |  |
SERP Benefits [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Defined benefit pension plan |  |  |  | The Company has an unfunded defined benefit pension plan, the Supplemental Executive Retirement Plan (the “SERP”), covering its CEO, Richard L. |  |
Benefit Obligation |  | 17,700,000 |  | $ 17,700,000 |  | 17,300,000
Interest costs |  |  |  |  | $ 100,000 |
Companies contribution and expenses during the remainder of 2023 |  | 0 |  | 0 |  |
SERP Benefits [Member] | Maximum [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Interest costs |  | 200,000 | $ 100,000 | 400,000 |  |
Expected interest costs in the remainder of the year |  | 400,000 |  | $ 400,000 |  |
Defined Contribution Plan [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Defined contribution pension plans for employees |  |  |  | The Company also maintains defined contribution plans for its employees, including its executive officers. The Company makes contributions to these plans on behalf of employees in an amount up to 5% of their base salary subject to certain prescribed maximums. |  |
Maximum percentage of base salary contributed to Defined Contribution Pension Plan by Company |  |  |  | 5.00% |  |
Canadian Plan [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Contribution and recorded expense |  | 300,000 | 300,000 | $ 600,000 | 600,000 |
Us Internal Revenue Code [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Contribution and recorded expense |  | 200,000 | 100,000 | 500,000 | 400,000 |
Postretirement Benefits Executives [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Benefit Obligation |  | 500,000 |  | 500,000 |  | 500,000
Postretirement Benefits Executives [Member] | Maximum [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Maximum amount of Postretirement benefit recorded expense |  | 100,000 |  | 100,000 |  |
Postretirement Benefits Canadian Employees [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Benefit Obligation |  | 900,000 |  | 900,000 |  | $ 1,000,000.0
Maximum amount of Postretirement benefit recorded expense |  |  |  | $ 100,000 | $ 100,000 |
Postretirement Benefits Canadian Employees [Member] | Maximum [Member] |  |  |  |  |  |
Pension and Other Postretirement Benefit Expense (Textual) [Abstract] |  |  |  |  |  |
Maximum amount of Postretirement benefit recorded expense |  | $ 100,000 | $ 100,000 |  |  |

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