Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.3
Revenue Recognition - Reconciliation of Revenue from Segments to Consolidated (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Disaggregation of Revenue [Line Items]        
Revenue, Net $ 63,497 $ 66,862 $ 192,760 $ 198,153
Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     146,986 152,020
Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     31,335 31,293
Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     14,439 14,840
Broadcast Programming [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     58,615 58,181
Broadcast Programming [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     58,615 58,181
Broadcast Programming [Member] | Block Programming-National [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     40,324 39,998
Broadcast Programming [Member] | Block Programming-National [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     40,324 39,998
Broadcast Programming [Member] | Block Programming-Local [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     18,291 18,183
Broadcast Programming [Member] | Block Programming-Local [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     18,291 18,183
Broadcast Advertising Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     53,323 59,220
Broadcast Advertising Revenue [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     53,323 59,220
Broadcast Advertising Revenue [Member] | Spot Advertising-National [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     8,743 11,344
Broadcast Advertising Revenue [Member] | Spot Advertising-National [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     8,743 11,344
Broadcast Advertising Revenue [Member] | Spot Advertising-Local [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     29,229 31,915
Broadcast Advertising Revenue [Member] | Spot Advertising-Local [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     29,229 31,915
Broadcast Advertising Revenue [Member] | Network Advertising [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     15,351 15,961
Broadcast Advertising Revenue [Member] | Network Advertising [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     15,351 15,961
Other Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     7,162 7,358
Other Broadcast Revenue [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     7,162 7,358
Other Broadcast Revenue [Member] | Infomercials [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     492 569
Other Broadcast Revenue [Member] | Infomercials [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     492 569
Other Broadcast Revenue [Member] | Other Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     6,670 6,789
Other Broadcast Revenue [Member] | Other Revenue [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     6,670 6,789
Digital Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     59,221 58,554
Digital Revenue [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     27,886 27,261
Digital Revenue [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     31,335 31,293
Digital Revenue [Member] | Digital Advertising [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     34,105 34,495
Digital Revenue [Member] | Digital Advertising [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     22,468 21,042
Digital Revenue [Member] | Digital Advertising [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     11,637 13,453
Digital Revenue [Member] | Digital Streaming [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     6,789 6,602
Digital Revenue [Member] | Digital Streaming [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     4,284 3,915
Digital Revenue [Member] | Digital Streaming [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     2,505 2,687
Digital Revenue [Member] | Digital Downloads [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     5,485 6,031
Digital Revenue [Member] | Digital Downloads [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     164 546
Digital Revenue [Member] | Digital Downloads [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     5,321 5,485
Digital Revenue [Member] | Digital Subscriptions [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     12,376 10,280
Digital Revenue [Member] | Digital Subscriptions [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     616 731
Digital Revenue [Member] | Digital Subscriptions [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     11,760 9,549
Digital Revenue [Member] | Other Digital Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     466 1,146
Digital Revenue [Member] | Other Digital Revenue [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     354 1,027
Digital Revenue [Member] | Other Digital Revenue [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     112 119
Publishing Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     14,439 14,840
Publishing Revenue [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     14,439 14,840
Publishing Revenue [Member] | Self-Publishing fees [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     5,002 5,189
Publishing Revenue [Member] | Self-Publishing fees [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     5,002 5,189
Publishing Revenue [Member] | Book Sales [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     8,718 10,816
Publishing Revenue [Member] | Book Sales [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     8,718 10,816
Publishing Revenue [Member] | Estimated Sales Returns And Allowances [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     (554) (2,799)
Publishing Revenue [Member] | Estimated Sales Returns And Allowances [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     (554) (2,799)
Publishing Revenue [Member] | Net Book Sales [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     8,164 8,017
Publishing Revenue [Member] | Net Book Sales [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     8,164 8,017
Publishing Revenue [Member] | EBook Sales [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     737 937
Publishing Revenue [Member] | EBook Sales [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     737 937
Publishing Revenue [Member] | Other Publishing Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     536 697
Publishing Revenue [Member] | Other Publishing Revenue [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     536 697
Timing Of Revenue Recognition [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     1,329 1,668
Timing Of Revenue Recognition [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     1,329 1,668
Timing Of Revenue Recognition [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     0  
Timing Of Revenue Recognition [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     0  
Timing Of Revenue Recognition [Member] | Transferred at Point in Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     191,431 196,485
Timing Of Revenue Recognition [Member] | Transferred at Point in Time [Member] | Broadcast Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     145,657 150,352
Timing Of Revenue Recognition [Member] | Transferred at Point in Time [Member] | Digital [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     31,335 31,293
Timing Of Revenue Recognition [Member] | Transferred at Point in Time [Member] | Publishing [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net     $ 14,439 $ 14,840