COMMITMENTS AND CONTINGENCIES Programming Rights Agreements and Other Commitments (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Programming purchase obligations
Long-term Purchase Commitment [Line Items]
2018	$ 24,663,000
2019	24,536,000
2020	18,530,000
2021	12,984,000
2022	3,312,000
2023 and thereafter	3,773,000
Total	87,798,000	$ 99,100,000
Other commitments (1)
Long-term Purchase Commitment [Line Items]
2018	13,232,000
2019	12,049,000
2020	2,224,000
2021	148,000
2022	125,000
2023 and thereafter	42,000
Total	27,820,000
Capital expenditures
Long-term Purchase Commitment [Line Items]
2018	1,411,000
2019	218,000
2020	0
2021	0
2022	0
2023 and thereafter	0
Total	$ 1,629,000