Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v2.4.1.9
Document and Entity Information (USD $)
Share data in Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Jun. 30, 2014
Mar. 02, 2015
Document Type 10-K    
Document Period End Date Dec. 31, 2014    
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 2014    
Document Fiscal Period Focus FY    
Entity Public Float   $ 206,250,223dei_EntityPublicFloat  
Class A Common Stock      
Entity Common Stock Shares Outstanding     38,524dei_EntityCommonStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
Class B Common Stock      
Entity Common Stock Shares Outstanding     3,159dei_EntityCommonStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember