Receivables - Summary of Allowance For Credit Losses Related to Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	$ 13,355	$ 12,306	$ 11,946	$ 14,295
Current period provision (reversal), net	623	(764)	2,856	(2,308)
Write-offs	(4)	(313)	(565)	(800)
Foreign exchange	(237)	(87)	(500)	(45)
Ending balance	13,737	11,142	13,737	11,142
Theatre Operators [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	10,704	8,597	8,867	8,368
Current period provision (reversal), net	211	(489)	2,326	(111)
Write-offs		(43)	(43)	(278)
Foreign exchange	(216)	(89)	(451)	(3)
Ending balance	10,699	7,976	10,699	7,976
Studios [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	1,744	2,517	1,994	4,481
Current period provision (reversal), net	30	(251)	(68)	(1,928)
Write-offs	(4)	(270)	(128)	(522)
Foreign exchange	(21)	2	(49)	(33)
Ending balance	1,749	1,998	1,749	1,998
Other [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	907	1,192	1,085	1,446
Current period provision (reversal), net	382	(24)	598	(269)
Write-offs			(394)
Foreign exchange				(9)
Ending balance	$ 1,289	$ 1,168	$ 1,289	$ 1,168