| **Related Party Transactions**            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
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| **Related Party Transactions [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Related Party Transactions                | Related Party TransactionsWe entered into a long-term capital lease agreement in 1991 with the wife of GCI’s President and CEO for property occupied by us.  The leased asset was capitalized in 1991 at the owner’s cost of $900,000 and the related obligation was recorded.  The lease agreement was amended in April 2008 and our existing capital lease asset and liability increased by $1.3 million to record the extension of this capital lease.  The amended lease terminates on September 30, 2026.In January 2001 we entered into an aircraft operating lease agreement with a company owned by GCI’s President and CEO.  The lease was amended several times, most recently in May 2011.  The lease term of the aircraft may be terminated at any time by us upon 12 months’ written notice.  The monthly lease rate of the aircraft is $132,000.  In 2001, we paid a deposit of $1.5 million in connection with the lease.  The deposit will be repaid to us no later than six months after the agreement terminates.Upon closing of the AWN acquisition on July 22, 2013, ACS became a related party for financial statement reporting purposes.  ACS provides us with local service lines and network capacity in locations where we do not have our own facilities. We provide wholesale services to ACS who uses our network to sell services to its respective retail customers and we receive ACS' high cost support from USF for its wireless customers. Additionally, we paid preferential cash distributions to ACS for its one-third ownership interest in AWN (see Note 1(d) for additional information). For the year ended December 31, 2014 and the period from the AWN acquisition date, July 23, 2013, to December 31, 2013, we paid ACS $62.9 million and $25.1 million, respectively.  For the year ended December 31, 2014 and the period from the AWN acquisition date, July 23, 2013, to December 31, 2013, we received $50.9 million and $23.9 million, respectively, in payments from ACS.  At December 31, 2014 we have $27.9 million in receivables from ACS and $7.4 million in payables to ACS.  We also have long term capacity exchange agreements with ACS for which no money is exchanged. |

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| - Definition
The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.
+ References
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