| **Commitments and Contingencies**            | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|----------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Commitments and Contingencies [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Commitments and Contingencies [Text Block]   | (8)       Commitments and Contingencies

Litigation, Disputes, and Regulatory Matters

We are involved in various lawsuits, billing disputes, legal proceedings, and regulatory matters that have arisen from time to time in the normal course of business. While the ultimate results of these items cannot be predicted with certainty we do not expect, at this time, that the resolution of them will have a material adverse effect on our financial position, results of operations or liquidity.  In addition we are involved in the following matters:

 
- In September 2008, the FCC's Office of Inspector General ("OIG") initiated an investigation regarding Alaska DigiTel LLC's (“Alaska DigiTel”) compliance with program rules and requirements under the Lifeline Program. The request covered the period beginning January 1, 2004 through August 31, 2008 and related to amounts received for Lifeline service.  Alaska DigiTel was an Alaska based wireless communications company of which we acquired an 81.9% equity interest on January 2, 2007 and the remaining 18.1% equity interest on August 18, 2008 and was subsequently merged with one of our wholly owned subsidiaries in April 2009. Prior to August 18, 2008, our control over the operations of Alaska DigiTel was limited as required by the FCC upon its approval of our initial acquisition completed in January 2007. We responded to this request on behalf of Alaska DigiTel and the GCI companies as affiliates. On January 18, 2011 we reached an agreement with the FCC and the Department of Justice to settle the matter, which required us to contribute $1.6 million to the United States Treasury and granted us a broad release of claims including those under the False Claims Act.   The $1.6 million contribution  was  recognized in  our 2008  through  2010  income statements  and  was paid in January 2011;  and
- In August 2010, a GCI  owned aircraft was involved in an accident resulting in five fatalities and injuries to the remaining four passengers on board.   We had aircraft and liability insurance coverage in effect at the time of  the accident.   As of  March 31, 2012 , all claims paid out have been covered by insurance  and were recorded net of these recoveries in our Consolidated Income Statements .   While some of the claims have been resolved, we cannot predict the likelihood or nature of  the total remaining claims, including environmental remediation, related to the accident.

 

Universal Service

As an ETC, we receive support from the USF to provide wireline local access and wireless service in high cost areas.On November 29, 2011, the FCC published the High Cost Order which divided support to Alaska between Urban and Remote areas.  Support for CETCs serving Urban areas that generally include Anchorage, Fairbanks, and Juneau will follow national reforms, had support per provider per service area capped as of January 1, 2012, and will commence a five-step phase-down on July 1, 2012.  In addition to broader reforms, the FCC tailored revisions specifically for CETCs serving Remote Alaska, intended to address the unique challenges for serving these areas.  Support to these locations will be capped and distributed on a per-line basis until the later of July 1, 2014, or the implementation of a successor funding mechanism.  A further rulemaking to consider successor funding mechanisms is underway.  We cannot predict at this time the outcome of this proceeding or its effect on Remote high cost support available to us, but our revenue for providing local services in these areas would be materially adversely affected by a substantial reduction of USF support.

 

Lifeline Support

On February 6, 2012, the Federal Communications Commission (“FCC”) released its Report and Order and Further Notice of Proposed Rulemaking to comprehensively reform and modernize the USF's Lifeline program.  The Lifeline program is administered by the Universal Service Administrative Company (“USAC”) and is designed to ensure that quality telecommunications services are available to low-income customers at just, reasonable, and affordable rates.  We participate in the Lifeline program and recognized $4.1 million in Lifeline program support revenue during the three months ended March 31, 2012.  Following are the significant reforms included in the order:  

 
- The order adopted on an interim basis a flat rate of $9.25 to replace the support previously available under Tier I through Tier III support mechanisms  as defined by USAC .  The replacement support reduces the wireless subscriber per line support $0.75  and will take effect 90 days after Office of Management and Budget  (“OMB”)  approval.  We do not expect this change to have a material impact on our income statement, financial position or cash flows .  The FCC intends to further investigate whether this support amount is reasonable over the long term in the further  rulemaking . 
- The order adopted a requirement for annual recertification of all Lifeline subscribers enrolled as of June 1, 2012 to be completed by the end of 2012.  We are evaluating this requirement and possible processes and cannot predict whether this new rule will have a material impact on our income statement, financial position or cash flows.
- The order adopted a “one per household” rule with “household” defined as an “economic unit.”  We do not expect this new rule to have a material impact on our income statement, financial position or cash flows.

 

The order adopted several other reforms but they are expected to have an insignificant or no impact on our income statement, financial position or cash flows.

 

In April 2012 the OMB rejected a requirement for biennial audits for all ETCs receiving more than $5.0 million annually from Lifeline.

 

As a related matter, in April 2012 the RCA issued a notice of inquiry to consider whether to modify the state-funded component of Lifeline support, which is currently $3.50 per month.   We cannot predict the outcome of the support review proceedings or the impact on our income statement, financial position or cash flows. |

| X                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_CommitmentsAndContingenciesDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The entire disclosure for commitments and contingencies.
+ References
Reference 1: 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=d3e14435-108349Reference 2: 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=d3e12565-110249Reference 3: 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 4: 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=d3e25287-109308Reference 5: 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.Reference 6: 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=d3e13212-122682Reference 7: 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
+ Details**Name:**us-gaap_CommitmentsAndContingenciesDisclosureTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |