Receivables - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Current Expected Credit Losses [Line Items]
Write-offs		$ 319,000
Finance Income related to the net investment in leases in nonaccrual status	$ 0	0
Finance Income related to the financed sales receivables in nonaccrual status	200,000	200,000
Finance income related to financed sale receivables with billed amounts past due	700,000	1,200,000
Maximum [Member]
Current Expected Credit Losses [Line Items]
Finance income related to net investment in leases with billed amounts past due	100,000	100,000
Foreign Movie Studios [Member]
Current Expected Credit Losses [Line Items]
Increase (decrease) in allowance for current expected credit losses, accounts receivables		(600,000)
Write-offs		300,000
Provision reversal		100,000
Theatre Operators [Member]
Current Expected Credit Losses [Line Items]
Write-offs		$ 170,000
Increase (decrease) in allowance for current expected credit losses, variable consideration receivables	(600,000)
Theatre Operators [Member] | Variable Consideration Receivables [Member]
Current Expected Credit Losses [Line Items]
Increase (decrease) investment in leases and financed sale receivables provision for current expected credit losses	5,600,000
Theatre Operators [Member] | Current Expected Credit Losses For Accounts Receivable [Member]
Current Expected Credit Losses [Line Items]
Increase (decrease) in allowance for current expected credit losses, accounts receivables	$ 2,200,000