REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Disaggregation of Revenue [Line Items] | |||||||||||
| Revenues | $ 414,118 | $ 386,141 | $ 380,665 | $ 309,005 | $ 411,375 | $ 378,508 | $ 372,124 | $ 300,560 | $ 1,489,929 | $ 1,462,567 | $ 592,884 |
| Broadcast revenues | |||||||||||
| Disaggregation of Revenue [Line Items] | |||||||||||
| Revenues | 1,360,092 | 1,327,803 | 530,553 | ||||||||
| Event and other revenues | |||||||||||
| Disaggregation of Revenue [Line Items] | |||||||||||
| Revenues | 112,924 | 115,399 | 51,434 | ||||||||
| Trade and barter revenues | |||||||||||
| Disaggregation of Revenue [Line Items] | |||||||||||
| Revenues | $ 16,913 | $ 19,365 | $ 10,897 | ||||||||