ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, at Carrying Value	$ 1,891			$ 19,603
Proceeds from Sale of Land Held-for-use			$ 24,500
Gain Loss On Sale Of Properties			$ 4,500
Assets exchange Cumulus media [Member]
Long Lived Assets Held-for-sale [Line Items]
Gain Loss On Sale Of Properties		$ (1,800)
Properties in California [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, at Carrying Value		1,100
Gain Loss On Sale Of Properties	(100)
Properties in Miami [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, at Carrying Value	1,900	$ 2,200
Gain Loss On Sale Of Properties	$ (100)