Capital Stock and Reserves - Performance Stock Units Activity under the IMAX LTIP (Details) - Performance Stock Units [Member] - $ / shares		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards outstanding, beginning of period		931,716	613,405
Granted	[1]	585,602	359,138
Forfeited		(215,376)	(37,266)
Vested and settled	[1]	(368,602)
Number of awards outstanding,end of period		933,340	935,277
Weighted average grant date fair value per share, beginning of period		$ 18.96	$ 18.21
Granted, weighted average grant date fair value per share	[1]	17.69	20.34
Forfeited, weighted average grant date fair value per share		18.14	19.79
Vested and settled, weighted average grant date fair value per share	[1]	16.92
Weighted average grant date fair value per share, end of period		$ 19.16	$ 18.97

[1] For the nine months ended September 30, 2023, the balance of shares granted includes 157,963 additional shares, at a weighted average grant date fair value per share of $16.92, as PSUs granted in 2020 with EBITDA-based targets vested at 175% on account of full achievement of the targets.