Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Reconciliation of Revenue from Segments to Consolidated (Detail)

v3.19.1
Revenue Recognition - Reconciliation of Revenue from Segments to Consolidated (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Disaggregation of Revenue [Line Items]    
Revenue, Net $ 60,469 $ 63,795
Block Programming National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 12,233  
Block Programming Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 7,910  
Spot Advertising - National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,900  
Spot Advertising - Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 12,062  
Infomercials [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 390  
Network [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,306  
Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 7,754  
Digital Streaming [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,172  
Digital Downloads and eBooks [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,437  
Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,559  
Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,288  
Self-Publishing Fees [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,477  
Print Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 137  
Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,844  
Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 59,833  
Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 636  
Broadcast [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 46,093  
Broadcast [Member] | Block Programming National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 12,233  
Broadcast [Member] | Block Programming Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 7,910  
Broadcast [Member] | Spot Advertising - National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,900  
Broadcast [Member] | Spot Advertising - Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 12,062  
Broadcast [Member] | Infomercials [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 390  
Broadcast [Member] | Network [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,306  
Broadcast [Member] | Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,352  
Broadcast [Member] | Digital Streaming [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 161  
Broadcast [Member] | Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 274  
Broadcast [Member] | Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 37  
Broadcast [Member] | Print Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2  
Broadcast [Member] | Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,466  
Broadcast [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 45,472  
Broadcast [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 621  
Digital Media [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,240  
Digital Media [Member] | Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 5,317  
Digital Media [Member] | Digital Streaming [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,011  
Digital Media [Member] | Digital Downloads and eBooks [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,275  
Digital Media [Member] | Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,084  
Digital Media [Member] | Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 410  
Digital Media [Member] | Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 143  
Digital Media [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,225  
Digital Media [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 15  
Publishing [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,136  
Publishing [Member] | Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 85  
Publishing [Member] | Digital Downloads and eBooks [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 162  
Publishing [Member] | Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 201  
Publishing [Member] | Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,841  
Publishing [Member] | Self-Publishing Fees [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,477  
Publishing [Member] | Print Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 135  
Publishing [Member] | Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 235  
Publishing [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net $ 4,136