Capital Stock and Reserves - Stock-based Compensation by Plan Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense by plan type	$ 7,637	$ 6,795	$ 13,689	$ 12,102
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense by plan type	122	204	329	555
Restricted Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense by plan type	4,478	4,473	7,889	7,624
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense by plan type	1,724	972	3,453	1,986
IMAX China Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense by plan type	24	46	58	102
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	1,093	985	1,590	1,617
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	$ 196	$ 115	$ 370	$ 218