Condensed Consolidated Statements of Comprehensive Earnings (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Condensed Consolidated Statements of Comprehensive Earnings (Loss)
Net earnings (loss)	$ (9,864)	$ 3,789	$ (27,286)	$ 871,702
Other comprehensive earnings (loss), net of taxes:
Unrealized holding gains (losses) arising during the period				(221)
Share of other comprehensive earnings (loss) of equity affiliates	260	247	634	811
Other				(1,839)
Other comprehensive earnings (loss), net of taxes	260	247	634	(1,249)
Comprehensive earnings (loss) attributable to Liberty Broadband shareholders	$ (9,604)	$ 4,036	$ (26,652)	$ 870,453