Receivables - Summary of Allowance For Credit Losses Related to Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	$ 11,946	$ 14,295
Current period provision (reversal), net	2,257	(149)
Write-offs		(319)
Foreign exchange	(19)	(85)
Ending balance	14,184	13,742
Theatre Operators [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	8,867	8,368
Current period provision (reversal), net	1,981	599
Write-offs		(170)
Foreign exchange	(17)	(14)
Ending balance	10,831	8,783
Studios [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	1,994	4,481
Current period provision (reversal), net	3	(499)
Write-offs		(149)
Foreign exchange	(2)	(62)
Ending balance	1,995	3,771
Other [Member]
Accounts Receivable Allowance For Credit Loss [Line Items]
Beginning balance	1,085	1,446
Current period provision (reversal), net	273	(249)
Foreign exchange		(9)
Ending balance	$ 1,358	$ 1,188