Quarterly report pursuant to Section 13 or 15(d)

Business and Summary of Significant Accounting Principles (Basic EPS calculations) (Details)

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Business and Summary of Significant Accounting Principles (Basic EPS calculations) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Class of Stock [Line Items]    
Allocation of undistributed earnings $ 3,244 $ 1,429
Common Stock - Class A [Member]
   
Class of Stock [Line Items]    
Allocation of undistributed earnings 2,996 1,321
Weighted average common shares outstanding 38,264 38,741
Basic net income attributable to GCI common stockholders per common share $ 0.08 $ 0.03
Common Stock - Class B [Member]
   
Class of Stock [Line Items]    
Allocation of undistributed earnings $ 248 $ 108
Weighted average common shares outstanding 3,167 3,171
Basic net income attributable to GCI common stockholders per common share $ 0.08 $ 0.03