Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.0.814
Business and Summary of Significant Accounting Principles (Basic EPS calculations) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Class of Stock [Line Items]        
Net income (loss) available to common stockholders $ 17,631 $ 9,915 $ (17,265) $ 16,982
Common Stock - Class A [Member]        
Class of Stock [Line Items]        
Net income (loss) available to common stockholders 16,213 9,161 (15,838) 15,686
Less: Undistributed income allocable to participating securities (920) (526) 0 (868)
Undistributed income (loss) allocable to common stockholders $ 15,293 $ 8,635 $ (15,838) $ 14,818
Weighted average common shares outstanding 34,031 36,220 35,037 36,149
Basic net income (loss) attributable to GCI common stockholders per common share $ 0.45 $ 0.24 $ (0.45) $ 0.41
Common Stock - Class B [Member]        
Class of Stock [Line Items]        
Net income (loss) available to common stockholders $ 1,418 $ 754 $ (1,427) $ 1,296
Less: Undistributed income allocable to participating securities 0 0 0 0
Undistributed income (loss) allocable to common stockholders $ 1,418 $ 754 $ (1,427) $ 1,296
Weighted average common shares outstanding 3,155 3,162 3,158 3,162
Basic net income (loss) attributable to GCI common stockholders per common share $ 0.45 $ 0.24 $ (0.45) $ 0.41