REVENUE - Disaggregation of Revenue - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
| Disaggregation Of Revenue [Abstract] | ||||
| Broadcast revenues | $ 348,066 | $ 110,430 | $ 963,118 | $ 315,942 |
| Event and other revenues | 26,391 | 9,464 | 77,252 | 25,601 |
| Trade and barter revenues | 4,051 | 2,405 | 10,822 | 4,727 |
| Agency commissions | $ 0 | $ 0 | $ 0 | $ 0 |