Revenue Recognition (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenue from External Customer [Line Items]    
Net revenues $ 42,680 $ 31,774
Trademark Licensing    
Revenue from External Customer [Line Items]    
Net revenues 15,704 16,352
Magazine and Digital Subscriptions    
Revenue from External Customer [Line Items]    
Net revenues 2,337 2,633
TV and Cable Programming    
Revenue from External Customer [Line Items]    
Net revenues 2,592 2,507
Consumer Products    
Revenue from External Customer [Line Items]    
Net revenues 22,047 10,282
All Other    
Revenue from External Customer [Line Items]    
Net revenues 14 645
All Other | Trademark Licensing    
Revenue from External Customer [Line Items]    
Net revenues 0 0
All Other | Magazine and Digital Subscriptions    
Revenue from External Customer [Line Items]    
Net revenues 14 645
All Other | TV and Cable Programming    
Revenue from External Customer [Line Items]    
Net revenues 0 0
All Other | Consumer Products    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Licensing | Operating Segments    
Revenue from External Customer [Line Items]    
Net revenues 14,977 15,644
Licensing | Operating Segments | Trademark Licensing    
Revenue from External Customer [Line Items]    
Net revenues 14,977 15,644
Licensing | Operating Segments | Magazine and Digital Subscriptions    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Licensing | Operating Segments | TV and Cable Programming    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Licensing | Operating Segments | Consumer Products    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Direct-to-Consumer | Operating Segments    
Revenue from External Customer [Line Items]    
Net revenues 22,047 10,282
Direct-to-Consumer | Operating Segments | Trademark Licensing    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Direct-to-Consumer | Operating Segments | Magazine and Digital Subscriptions    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Direct-to-Consumer | Operating Segments | TV and Cable Programming    
Revenue from External Customer [Line Items]    
Net revenues 0 0
Direct-to-Consumer | Operating Segments | Consumer Products    
Revenue from External Customer [Line Items]    
Net revenues 22,047 10,282
Digital Subscriptions and Content | Operating Segments    
Revenue from External Customer [Line Items]    
Net revenues 5,642 5,203
Digital Subscriptions and Content | Operating Segments | Trademark Licensing    
Revenue from External Customer [Line Items]    
Net revenues 727 708
Digital Subscriptions and Content | Operating Segments | Magazine and Digital Subscriptions    
Revenue from External Customer [Line Items]    
Net revenues 2,323 1,988
Digital Subscriptions and Content | Operating Segments | TV and Cable Programming    
Revenue from External Customer [Line Items]    
Net revenues 2,592 2,507
Digital Subscriptions and Content | Operating Segments | Consumer Products    
Revenue from External Customer [Line Items]    
Net revenues $ 0 $ 0