Condensed Consolidated Statements of Cash Flows Supplemental Information - Summary of Depreciation and Amortization (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Amortization of intangible assets net in research and development	$ 0.3	$ 0.3

Amortization of intangible assets net in research and development.

No definition available.

Name:	imax_AmortizationOfIntangibleAssetsNetInResearchAndDevelopment
Namespace Prefix:	imax_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration