REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
|
| Disaggregation of Revenue [Line Items] | ||||
| Net revenues | $ 268,505 | $ 386,141 | $ 741,403 | $ 1,075,811 |
| Spot revenues | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Net revenues | 183,011 | 288,927 | 488,891 | 805,161 |
| Digital revenues | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Net revenues | 47,337 | 33,473 | 131,188 | 98,430 |
| Network revenues | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Net revenues | 18,908 | 23,035 | 56,889 | 56,260 |
| Sponsorships and event revenues | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Net revenues | 8,776 | 22,470 | 32,871 | 61,684 |
| Other revenues | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Net revenues | $ 10,473 | $ 18,236 | $ 31,564 | $ 54,276 |