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

Annual report pursuant to Section 13 and 15(d)

Earnings (Loss) per Common Share (EPS Calculation) (Details)

Earnings (Loss) per Common Share (EPS Calculation) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Denominator:
Basic net loss attributable to GCI common stockholders per common share (USD per share)	$ 1.35	$ (0.25)	$ (0.26)	$ (1.60)	$ (0.47)	$ 0.21	$ 0.09	$ 0.03
Denominator:
Diluted net loss attributable to GCI common stockholders per common share (USD per share)	$ 1.19	$ (0.25)	$ (0.26)	$ (1.60)	$ (0.47)	$ 0.14	$ (0.01)	$ (0.04)
Class A-1
Numerator:
Undistributed loss allocable to common stockholders									$ (22,074)	$ (3,343)	$ (23,858)
Denominator:
Weighted average common shares outstanding									31,344	32,526	34,764
Basic net loss attributable to GCI common stockholders per common share (USD per share)									$ (0.70)	$ (0.10)	$ (0.69)
Numerator:
Undistributed loss allocable to common stockholders for basic computation									$ (22,074)	$ (3,343)	$ (23,858)
Reallocation of undistributed loss as a result of conversion of Class B-1 to Class A-1 shares									(2,172)	(324)	(2,167)
Reallocation of undistributed loss as a result of conversion of dilutive securities										0	0
Effect of derivative instrument that may be settled in cash or shares										(1,837)	0
Effect of share based compensation that may be settled in cash or shares										(5)	0
Net loss adjusted for allocation of undistributed earnings and effect of contracts that may be settled in cash or shares									$ (24,246)	$ (5,509)	$ (26,025)
Denominator:
Number of shares used in basic computation									31,344	32,526	34,764
Conversion of Class B-1 to Class A-1 common shares outstanding (in shares)									3,083	3,154	3,157
Effect of derivative instrument that may settled in cash or shares (in shares)										612	0
Effect of share based compensation that may be settled in cash or shares (in shares)										26	0
Number of shares used in per share computation									34,427	36,318	37,921
Diluted net loss attributable to GCI common stockholders per common share (USD per share)									$ (0.70)	$ (0.15)	$ (0.69)
Class B-1
Numerator:
Undistributed loss allocable to common stockholders									$ (2,172)	$ (324)	$ (2,167)
Denominator:
Weighted average common shares outstanding									3,083	3,154	3,157
Basic net loss attributable to GCI common stockholders per common share (USD per share)									$ (0.70)	$ (0.10)	$ (0.69)
Numerator:
Undistributed loss allocable to common stockholders for basic computation									$ (2,172)	$ (324)	$ (2,167)
Reallocation of undistributed loss as a result of conversion of Class B-1 to Class A-1 shares									0	0	0
Reallocation of undistributed loss as a result of conversion of dilutive securities										(154)	0
Effect of derivative instrument that may be settled in cash or shares										0	0
Effect of share based compensation that may be settled in cash or shares										0	0
Net loss adjusted for allocation of undistributed earnings and effect of contracts that may be settled in cash or shares									$ (2,172)	$ (478)	$ (2,167)
Denominator:
Number of shares used in basic computation									3,083	3,154	3,157
Conversion of Class B-1 to Class A-1 common shares outstanding (in shares)									0	0	0
Effect of derivative instrument that may settled in cash or shares (in shares)										0	0
Effect of share based compensation that may be settled in cash or shares (in shares)										0	0
Number of shares used in per share computation									3,083	3,154	3,157
Diluted net loss attributable to GCI common stockholders per common share (USD per share)									$ (0.70)	$ (0.15)	$ (0.69)