2.4.0.8101300 - Disclosure - Commitments and Contingenciestruefalsefalse1false falsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000075679duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_CommitmentsAndContingenciesDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Commitments and Contingencies [Abstract]2false 2us-gaap_CommitmentsAndContingenciesDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00(9)       Commitments and ContingenciesTERRA-NWAs a requirement of NMTC #1, NMTC #2 and NMTC #3, we have guaranteed completion of TERRA-NW by December 31, 2014. We plan to fund an additional $20.7 million for TERRA-NW. We began construction in 2012 and expect to complete all current phases of the project in 2014. We began offering service on Phase 1 of this new facility on January 3, 2013. Denali Media HoldingsOn November 9, 2012, we entered into asset purchase agreements, pursuant to which Denali Media Holdings Corp., a wholly owned subsidiary of GCI, through its wholly owned subsidiaries, Denali Media Anchorage, Corp. and Denali Media Southeast, Corp., agreed to purchase three Alaska broadcast stations: CBS affiliate KTVA-TV of Anchorage and NBC affiliates KATH-TV in Juneau and KSCT-TV of Sitka, for a total of $7.6 million (“Media Agreements”).  The Media Agreements are subject to the satisfaction of customary closing conditions, including the receipt of required governmental approvals from the FCC.  The transactions are expected to close in the second half of 2013.falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for commitments and contingencies.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Commitments and Contingencies [Text Block]falseCommitments and ContingenciesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.gci.net/role/CommitmentsAndContingencies12