CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net income (loss)	$ 23,375		$ (7,818)	$ 24,749	$ (9,165)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization				24,869	25,548
Amortization of debt financing costs				2,151	2,900
Amortization of content assets				32,315	35,468
Amortization of launch assets				317	324
Deferred income taxes				(10,732)	(5,960)
Impairment of long-lived assets	0		16,392	6,556	29,148
Stock-based compensation	1,100		1,700	3,635	1,946
(Gain) loss on retirement of debt	(120)	$ (1,200)	(690)	(985)	6,393	$ (7,100)
Gain on sale-leaseback	0		0	0	(14,411)
Effect of change in operating assets and liabilities, net of assets acquired:
Trade accounts receivable				5,297	(6,146)
Prepaid expenses and other current assets				(101)	(1,222)
Other assets				(1,172)	1,916
Accounts payable				(2,394)	(184)
Accrued interest				164	(963)
Accrued compensation and related benefits				1,171	(6,317)
Other liabilities				(5,254)	1,030
Payment of launch support			0	0	(1,848)
Payments for content assets				(36,416)	(38,683)
Net cash flows provided by operating activities				44,170	19,774
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment				(3,719)	(4,483)
Proceeds from sale of radio station				12,791	2,000
Proceeds from sale-leaseback				0	25,000
Acquisition of digital assets				0	(5,000)
Acquisition of station and broadcasting assets				(4,763)	(2,000)
Net cash flows provided by investing activities				4,309	15,517
CASH FLOWS FROM FINANCING ACTIVITIES:
Distribution of contingent consideration				(752)	0
Proceeds from exercise of stock options				85	0
Repayment of 2020 Notes				(28,892)	(19,369)
Debt refinancing costs and original issue discount				0	(8,860)
Repurchase of share-based equity awards				(1,077)	0
Payment of dividends to noncontrolling interest members of Reach Media				(801)	0
Repurchase of common stock				(6,130)	(4,396)
Net cash flows used in financing activities				(40,192)	(29,125)
INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH				8,287	6,166
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period		52,947		37,811	46,781	46,781
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period	$ 46,098	$ 37,811	$ 52,947	46,098	52,947	$ 37,811
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for: Interest				55,108	58,210
Cash paid for: Income taxes, net of refunds				1,289	629
NON-CASH FINANCIAL AND INVESTING ACTIVITIES:
Purchases of property and equipment				329	0
2017 Credit Facility [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from 2017 Credit Facility				0	350,000
Repayment of credit facility				(2,625)	(1,750)
2015 Credit Facility [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of credit facility				$ 0	$ (344,750)