Business and Summary of Significant Accounting Principles (Tables)

6 Months Ended

Jun. 30, 2013

Business and Summary of Significant Accounting Policies [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

				Three Months Ended June 30,
				2013		2012
				Class A	Class B	Class A	Class B
Basic net income per share:
Numerator:
	Allocation of undistributed earnings			$ 3,862	318	$ 3,679	303
Denominator:
	Weighted average common shares outstanding			37,979	3,132	38,516	3,171
			Basic net income attributable to GCI common stockholders per common share	$ 0.10	0.10	$ 0.10	0.10
Diluted net income per share:
Numerator:
	Allocation of undistributed earnings for basic computation			$ 3,862	318	$ 3,679	303
	Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares			318	-	303	-
	Reallocation of undistributed earnings as a result of conversion of dilutive securities			-	(6)	-	(4)
	Effect of share based compensation that may be settled in cash or shares			(60)	-	(33)	-
		Net income adjusted for allocation of undistributed earnings and effect of share based compensation that may be settled in cash or shares		$ 4,120	312	$ 3,949	299
Denominator:
	Number of shares used in basic computation			37,979	3,132	38,516	3,171
	Conversion of Class B to Class A common shares outstanding			3,132	-	3,171	-
	Unexercised stock options			164	-	304	-
	Effect of share based compensation that may be settled in cash or shares			90	-	158	-
Number of shares used in per share computation				41,365	3,132	42,149	3,171
			Diluted net income attributable to GCI common stockholders per common share	$ 0.10	0.10	$ 0.09	0.09

				Six Months Ended June 30,
				2013		2012
				Class A	Class B	Class A	Class B
Basic net income per share:
Numerator:
	Allocation of undistributed earnings			$ 6,855	569	$ 5,001	410
Denominator:
	Weighted average common shares outstanding			38,117	3,167	38,629	3,171
			Basic net income attributable to GCI common stockholders per common share	$ 0.18	0.18	$ 0.13	0.13
Diluted net income per share:
Numerator:
	Allocation of undistributed earnings for basic computation			$ 6,855	569	$ 5,001	410
	Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares			569	-	410	-
	Reallocation of undistributed earnings as a result of conversion of dilutive securities			-	(10)	-	(10)
	Effect of share based compensation that may be settled in cash or shares			(94)	-	(118)	-
		Net income adjusted for allocation of undistributed earnings and effect of share based compensation that may be settled in cash or shares		$ 7,330	559	$ 5,293	400
Denominator:
	Number of shares used in basic computation			38,117	3,167	38,629	3,171
	Conversion of Class B to Class A common shares outstanding			3,167	-	3,171	-
	Unexercised stock options			168	-	272	-
	Effect of share based compensation that may be settled in cash or shares			90	-	158	-
Number of shares used in per share computation				41,542	3,167	42,230	3,171
			Diluted net income attributable to GCI common stockholders per common share	$ 0.18	0.18	$ 0.13	0.13

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Shares associated with anti-dilutive unexercised stock options	88	35	88	13

Schedule Of Contingent Awards [Table Text Block]

	Three Months Ended June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Shares associated with contingent awards	50	58	50	58

Schedule of Stock by Class [Table Text Block]

		Class A	Class B
	Balances at December 31, 2011	39,296	3,171
Shares issued upon stock option exercises		188	-
Share awards issued		520	-
Shares retired		(869)	-
Shares acquired to settle minimum statutory tax withholding requirements		(291)	-
Other		(1)	-
	Balances at June 30, 2012	38,843	3,171
	Balances at December 31, 2012	38,534	3,169
Class B shares converted to Class A		2	(2)
Shares issued upon stock option exercises		51	-
Share awards issued		664	-
Shares retired		(1,538)	-
Shares acquired to settle minimum statutory tax withholding requirements		(17)	-
Other		(2)	-
	Balances at June 30, 2013	37,694	3,167

Excise And Sales Taxes [Table Text Block]

		Three Months Ended June 30,		Six Months Ended June 30,
		2013	2012	2013	2012
Surcharges reported gross	$	1,205	1,399	2,432	2,880