Liberty Broadband Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Business and Summary of Significant Accounting Principles (EPS Calculations) (Details)

Business and Summary of Significant Accounting Principles (EPS Calculations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Class of Stock [Line Items]
Allocation of undistributed earnings	$ (9,425)	$ 9,915	$ 5,927	$ 1,140	$ (6,923)	$ 8,905	$ 4,180	$ 3,244	$ 7,557	$ 9,406	$ 9,673
Basic net income attributable to GCI common stockholders per common share	$ (0.24)us-gaap_EarningsPerShareBasic	$ 0.24us-gaap_EarningsPerShareBasic	$ 0.14us-gaap_EarningsPerShareBasic	$ 0.03us-gaap_EarningsPerShareBasic	$ (0.17)us-gaap_EarningsPerShareBasic	$ 0.22us-gaap_EarningsPerShareBasic	$ 0.10us-gaap_EarningsPerShareBasic	$ 0.08us-gaap_EarningsPerShareBasic
Diluted net income attributable to GCI common stockholders per common share	$ (0.24)us-gaap_EarningsPerShareDiluted	$ 0.24us-gaap_EarningsPerShareDiluted	$ 0.14us-gaap_EarningsPerShareDiluted	$ 0.03us-gaap_EarningsPerShareDiluted	$ (0.17)us-gaap_EarningsPerShareDiluted	$ 0.22us-gaap_EarningsPerShareDiluted	$ 0.10us-gaap_EarningsPerShareDiluted	$ 0.08us-gaap_EarningsPerShareDiluted
Class A Common Stock
Class of Stock [Line Items]
Allocation of undistributed earnings									6,980	8,678	8,938
Weighted average common shares outstanding									38,219	37,732	38,560
Basic net income attributable to GCI common stockholders per common share									$ 0.18	$ 0.23	$ 0.23
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares									577	728	735
Effect of share based compensation that may be settled in cash or shares									0	0	0
Effect of share based compensation that may be settled in cash or shares										0	(13)
Net income adjusted for allocation of undistributed earnings									7,557	9,406	9,660
Conversion of Class B to Class A common shares outstanding									3,162	3,166	3,170
Unexercised stock options									112	142	158
Effect of share based compensation that may be settled in cash or shares										0	231
Number of shares used in per share computation									41,493	41,040	42,119
Diluted net income attributable to GCI common stockholders per common share									$ 0.18	$ 0.23	$ 0.23
Class B Common Stock
Class of Stock [Line Items]
Allocation of undistributed earnings									577	728	735
Weighted average common shares outstanding									3,162	3,166	3,170
Basic net income attributable to GCI common stockholders per common share									$ 0.18	$ 0.23	$ 0.23
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares									0	0	0
Effect of share based compensation that may be settled in cash or shares									(2)	(3)	(8)
Effect of share based compensation that may be settled in cash or shares										0	0
Net income adjusted for allocation of undistributed earnings									$ 575	$ 725	$ 727
Conversion of Class B to Class A common shares outstanding									0	0	0
Unexercised stock options									0	0	0
Effect of share based compensation that may be settled in cash or shares										0	0
Number of shares used in per share computation									3,162	3,166	3,170
Diluted net income attributable to GCI common stockholders per common share									$ 0.18	$ 0.23	$ 0.23