Condensed Consolidated Statements of Cash Flows Supplemental Information - Write Downs, Net of Recoveries (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Write-downs
Other assets	[1]		$ 4,470
Equipment supporting joint revenue sharing arrangements	[2]	$ 398	212
Other property, plant and equipment		2	6
Inventories		74	278
Film assets			466
Write-downs		$ 474	$ 5,432

[1] In the six months ended June 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. (See Note 15(e).)

[2] In the six months ended June 30, 2023, the Company recorded charges of $0.4 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.