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v3.21.2

Current Expected Credit Losses - Schedule of Weighted-average Remaining Lease Term and Weighted-average Interest Rate (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Weighted-average remaining lease term (in years) |  |
Sales-type lease arrangements | 9 years | 8 years 3 months 18 days
Weighted-average interest rate |  |
Sales-type lease arrangements | 6.55% | 6.56%
Financed sales receivables | 8.75% | 8.92%

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- Definition The weighted average effective interest rate inherent in the Company's financed sales receivables held at the balance sheet date. + References No definition available. + Details
Name: | imax_FinancedSaleReceivablesWeightedAverageEffectiveInterestRate
Namespace Prefix: | imax_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Lease, weighted average interest rates. + References No definition available. + Details
Name: | imax_LeaseWeightedAverageInterestRatesAbstract
Namespace Prefix: | imax_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Weighted average discount rate for sales-type lease calculated at point in time. + References No definition available. + Details
Name: | imax_SalesTypeLeaseWeightedAverageDiscountRatePercent
Namespace Prefix: | imax_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Weighted average remaining lease term for sales-type lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | imax_SalesTypeLeaseWeightedAverageRemainingLeaseTerm
Namespace Prefix: | imax_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Weighted average remaining lease term. + References No definition available. + Details
Name: | imax_WeightedAverageRemainingLeaseTermAbstract
Namespace Prefix: | imax_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration