CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenues	$ 224,346	$ 233,766	$ 452,461	$ 464,864
Cost of goods sold (exclusive of depreciation and amortization shown separately below)	68,329	78,141	137,603	154,432
Selling, general and administrative expenses	96,229	88,022	189,787	175,668
Depreciation and amortization expense	48,757	48,072	98,694	95,214
Operating income	11,031	19,531	26,377	39,550
Other income (expense):
Interest expense (including amortization of deferred loan fees)	(20,946)	(19,362)	(40,782)	(38,533)
Other	645	587	1,272	1,089
Other expense, net	(20,301)	(18,775)	(39,510)	(37,444)
Income (loss) before income taxes	(9,270)	756	(13,133)	2,106
Income tax expense	(16,211)	(1,178)	(10,349)	(2,202)
Net loss	(25,481)	(422)	(23,482)	(96)
Net loss attributable to non-controlling interests	(118)	(117)	(235)	(234)
Net income (loss) attributable to GCI, Inc.	$ (25,363)	$ (305)	$ (23,247)	$ 138