Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Adjustments to capital stock:	Adjustments to other equity:	Adjustments to statutory surplus reserve:	Adjustments to accumulated deficit:	Adjustments to accumulated other comprehensive loss:	Adjustments to non-controlling interests:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Shareholders’ Equity		$ 389,048	$ 185,087	$ 3,932	$ (292,845)	$ (12,081)	$ 71,790
Balance, beginning of period at Dec. 31, 2023		389,048	185,087	3,932	(292,845)	(12,081)	71,790
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted share units vested, net of shares withheld for employee tax obligations		14,032	(19,815)
Employee stock options exercised, net of shares withheld for employee tax obligations		98
Common shares repurchased and retired		(8,575)			(7,901)
Amortization of share-based payment expense - restricted share units			10,864
Amortization of share-based payment expense - performance stock units			5,864
Change in ownership interest related to IMAX China	$ (16,300)		(89)				(25)
Net income attributable to common shareholders	20,753				20,753
Other comprehensive income, net of tax	1,856					1,066
Net income attributable to non-controlling interests	5,083						5,067
Other comprehensive income, net of tax							789
Share-based compensation attributable to non-controlling interests							52
Balance, end of period at Sep. 30, 2024	367,111	394,603	181,911	3,932	(279,993)	(11,015)	77,673
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Shareholders’ Equity		394,493	176,632	3,932	(293,889)	(13,974)	75,111
Balance, beginning of period at Jun. 30, 2024		394,493	176,632	3,932	(293,889)	(13,974)	75,111
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted share units vested, net of shares withheld for employee tax obligations		12	(24)
Employee stock options exercised, net of shares withheld for employee tax obligations		98
Amortization of share-based payment expense - restricted share units			3,318
Amortization of share-based payment expense - performance stock units			1,985
Net income attributable to common shareholders	13,896				13,896
Other comprehensive income, net of tax	4,033					2,959
Net income attributable to non-controlling interests	1,447						1,431
Other comprehensive income, net of tax							1,073
Share-based compensation attributable to non-controlling interests							58
Balance, end of period at Sep. 30, 2024	367,111	394,603	181,911	3,932	(279,993)	(11,015)	77,673
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Shareholders’ Equity	367,111	394,603	181,911	3,932	(279,993)	(11,015)	77,673
Total Shareholders’ Equity	377,535	401,420	185,268	4,051	(274,675)	(16,598)	78,069
Balance, beginning of period at Dec. 31, 2024	377,535	401,420	185,268	4,051	(274,675)	(16,598)	78,069
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted share units vested, net of shares withheld for employee tax obligations		12,370	(22,645)
Employee stock options exercised, net of shares withheld for employee tax obligations		1,394
Grant date fair value of stock options exercised		433	(324)
Amortization of share-based payment expense - restricted share units			13,681
Amortization of share-based payment expense - performance stock units			6,103
Change in ownership interest related to IMAX China			(85)				(1,369)
Change in statutory surplus reserve, IMAX China				168
Net income attributable to common shareholders	34,239				34,239
Statutory surplus reserve deducted from retained earnings, IMAX China					(168)
Other comprehensive income, net of tax	5,655					4,902
Net income attributable to non-controlling interests	8,762						8,721
Other comprehensive income, net of tax							753
Share-based compensation attributable to non-controlling interests							278
Balance, end of period at Sep. 30, 2025	435,986	415,617	181,998	4,219	(240,604)	(11,696)	86,452
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Shareholders’ Equity		415,142	175,901	4,219	(261,261)	(13,589)	83,970
Balance, beginning of period at Jun. 30, 2025		415,142	175,901	4,219	(261,261)	(13,589)	83,970
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted share units vested, net of shares withheld for employee tax obligations		20	(129)
Employee stock options exercised, net of shares withheld for employee tax obligations		346
Grant date fair value of stock options exercised		109
Amortization of share-based payment expense - restricted share units			4,118
Amortization of share-based payment expense - performance stock units			2,108
Net income attributable to common shareholders	20,657				20,657
Other comprehensive income, net of tax	2,356					1,893
Net income attributable to non-controlling interests	1,959						1,929
Other comprehensive income, net of tax							463
Share-based compensation attributable to non-controlling interests							90
Balance, end of period at Sep. 30, 2025	435,986	415,617	181,998	4,219	(240,604)	(11,696)	86,452
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Shareholders’ Equity	$ 435,986	$ 415,617	$ 181,998	$ 4,219	$ (240,604)	$ (11,696)	$ 86,452