Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.6.0.2
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2016
Feb. 24, 2017
Jun. 30, 2016
Document Type 10-K    
Document Period End Date Dec. 31, 2016    
Amendment Flag false    
Entity Registrant Name GENERAL COMMUNICATION INC    
Entity Central Index Key 0000808461    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Entity Well Known Seasoned Issuer No    
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY    
Entity Public Float     $ 160,967,837
Class A Common Stock      
Entity Common Stock Shares Outstanding   32,691,000  
Class B Common Stock      
Entity Common Stock Shares Outstanding   3,153,000