Condensed Consolidated Statements of Cash Flows Supplemental Information - Write Downs, Net of Recoveries (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Write-downs
Other assets	[1]		$ 4,470
Equipment supporting joint revenue sharing arrangements	[2]	$ 486	235
Other property, plant and equipment		3	9
Other intangible assets			24
Inventories		(27)	503
Film assets		410	466
Write-downs		$ 872	$ 5,707

[1] In the nine months ended September 30, 2022, the Company recognized a full impairment of its RMB 30.0 million (4.5 million) investment in the film Mozart from Space based on projected box office results and distribution costs.

[2] In the nine months ended September 30, 2023, the Company recorded charges of $0.5 million (2022 ― $0.2 million) in Costs and Expenses Applicable to Revenues ― Technology Rentals mostly related to the write-down of leased xenon-based digital systems which were taken out of service in connection with customer upgrades to laser-based digital systems, as well as the closure of one IMAX System.