Receivables - Summary of Allowance For Credit Losses Related to Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	$ 14,184	$ 13,742	$ 11,946	$ 14,295
Current period provision (reversal), net	(27)	(1,395)	2,230	(1,544)
Write-offs	(561)	(168)	(561)	(487)
Foreign exchange	(241)	127	(260)	42
Ending balance	13,355	12,306	13,355	12,306
Theatre Operators [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	10,831	8,783	8,867	8,368
Current period provision (reversal), net	134	(221)	2,115	378
Write-offs	(43)	(65)	(43)	(235)
Foreign exchange	(218)	100	(235)	86
Ending balance	10,704	8,597	10,704	8,597
Studios [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	1,995	3,771	1,994	4,481
Current period provision (reversal), net	(104)	(1,178)	(101)	(1,677)
Write-offs	(124)	(103)	(124)	(252)
Foreign exchange	(23)	27	(25)	(35)
Ending balance	1,744	2,517	1,744	2,517
Other [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	1,358	1,188	1,085	1,446
Current period provision (reversal), net	(57)	4	216	(245)
Write-offs	(394)		(394)
Foreign exchange				(9)
Ending balance	$ 907	$ 1,192	$ 907	$ 1,192