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Impact of COVID-19 Pandemic - Additional Information (Details) - Impact of COVID-19 Pandemic [Member] $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($) Country
IMAX [Member]
Impact Of Coronavirus Nineteen Pandemic [Line Items]
Percentage of global theater network open	93.00%	93.00%
Number of countries in which global theater network open | Country		70
IMAX [Member] | United States and Canada [Member]
Impact Of Coronavirus Nineteen Pandemic [Line Items]
Percentage of global theater network open	100.00%	100.00%
IMAX [Member] | Greater China [Member]
Impact Of Coronavirus Nineteen Pandemic [Line Items]
Percentage of global theater network open	93.00%	93.00%
IMAX [Member] | Rest of the World [Member]
Impact Of Coronavirus Nineteen Pandemic [Line Items]
Percentage of global theater network open	87.00%	87.00%
IMAX DMR Films [Member]
Impact Of Coronavirus Nineteen Pandemic [Line Items]
Revenue generated from GBO receipts	$ 141.9	$ 360.7
Increase in revenue generated from GBO receipts	$ 71.7	$ 192.6
Percentage of increase in revenue generated from GBO receipts	102.00%	115.00%

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