CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Paid-in Capital [Member]	Retained Deficit [Member]	Noncontrolling Interest [Member]	Shares of Class A Common Stock [Member]	Common Stock - Class A [Member]
Beginning balances, Common Stock, Shares Issued at Dec. 31, 2014					100
Beginning balances, total stockholders' equity at Dec. 31, 2014	$ 467,222	$ 88,802	$ (128,068)	$ 299,866		$ 206,622
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(17,721)		(18,246)	525
Distribution to General Communication, Inc.	(20,030)		(20,030)
Contribution from General Communication, Inc.	62,456	62,456
Distribution to non-controlling interest	(765)			(765)
Non-controlling interest acquisition	(303,831)	(35,467)		(268,364)
Other	(230)	(230)
Ending balances, Common Stock, Shares Issued at Mar. 31, 2015					100
Ending balances, total stockholders' equity at Mar. 31, 2015	187,101	115,561	(166,344)	31,262		$ 206,622
Beginning balances, Common Stock, Shares Issued at Dec. 31, 2015					100	100
Beginning balances, total stockholders' equity at Dec. 31, 2015	210,095	164,508	(192,033)	30,998		$ 206,622
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	326		443	(117)
Distribution to General Communication, Inc.	(17,176)		(17,176)
Contribution from General Communication, Inc.	2,430	2,430
Ending balances, Common Stock, Shares Issued at Mar. 31, 2016					100	100
Ending balances, total stockholders' equity at Mar. 31, 2016	$ 195,675	$ 166,938	$ (208,766)	$ 30,881		$ 206,622