Condensed Consolidated Statements of Cash Flows Supplemental Information - Summary of Depreciation and Amortization (Parenthetical) (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]
Amortization of property, plant and equipment net in research and development	$ 0.6	$ 0.6
Amortization of intangible assets net in research and development	$ 1.0	$ 1.0

Amortization of property, plant and equipment net in research and development.

No definition available.

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