Inventories - Summary of Inventory Valuation Allowance Account (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Inventory [Abstract]
Inventory expenses (recovery) charged to statement of operation	$ 0.5	$ (0.2)	$ 0.3

Inventory expenses (recovery) charged to statement of operation.

No definition available.

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