Summary of Significant Accounting Policies - Film costs (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Film, Monetized on Its Own, Capitalized Cost [Abstract]
Film, Monetized on Its Own, Capitalized Cost, Production	$ 3,690	$ 2,086
Film, Monetized on Its Own, Amortization Expense	$ 7,100

Amount of amortization expense for capitalized film cost for film predominantly monetized on its own.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 4A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155244-107959

Name:	us-gaap_FilmMonetizedOnItsOwnAmortizationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration