LONG-TERM DEBT - Receivables Based Credit Facility (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 14, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Total debt		$ 20,472,917	$ 20,649,181
Draws on revolving credit facilities		143,332	100,000	$ 100,000
Payments on credit facilities		$ 258,308	$ 25,909	$ 2,100
iHeartCommunications | Secured debt | Receivables Based Credit Facility
Line of Credit Facility [Line Items]
Payments on credit facilities	$ 306,400