REVENUE - Disaggregation of Revenue - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Disaggregation Of Revenue [Abstract] | ||
| Broadcast revenues | $ 305,719 | $ 103,313 |
| Event and other revenues | 22,609 | 5,421 |
| Trade and barter revenues | 3,498 | 1,078 |
| Agency commissions | (31,266) | (10,811) |
| Sales Revenue, Net | $ 300,560 | $ 99,001 |