| **Subsequent Events**            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
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| **Subsequent Events [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| Subsequent Events                | Subsequent EventsOn February 2, 2015, we purchased ACS Wireless’s interest in AWN and substantially all the assets of ACS and its affiliates related to ACS’s wireless business (the “Acquired Assets”) for a cash payment of $293.2 million, subject to possible post-closing adjustments. The Acquired Assets included all of ACS Wireless' equity interest in AWN, substantially all of ACS’s wireless subscriber assets, including subscriber contracts, and certain of ACS’s CDMA network assets, including fiber strands and associated cell site electronics and microwave facilities and associated electronics. GCI did not acquire certain excluded assets specified in the agreement. GCI assumed from ACS post-closing liabilities of ACS and its affiliates under contracts assumed by GCI and liabilities with respect to the ownership by ACS Wireless of its equity interest in AWN to the extent accruing and related to the period after closing. All other liabilities were retained by ACS and its affiliates.  To fund the 2015 purchase from ACS, on February 2, 2015 GCI Holdings entered into a Fourth Amended and Restated Credit and Guarantee Agreement  with Credit Agricole that included $275.0 million of a Term B Loan. The interest rate under the Term B Loan is LIBOR plus 3.75%, with a 1% LIBOR floor.  The Term B Loan will mature on February 2, 2022 or December 3, 2020 if our Senior Notes due 2021 are not refinanced prior to such date. We sold an unsecured promissory note to Searchlight ALX, L.P. ("Searchlight") in the principal amount of $75.0 million that will mature on February 2, 2023 and will bear interest at a rate of 7.5% per year ("Searchlight Note"). A portion of the proceeds from the Searchlight Note were used to finance the ACS transaction described above and the remainder will be used for general corporate purposes. Additionally, we entered into a Stock Appreciation Rights Agreement pursuant to which we issued to Searchlight three million stock appreciation rights which entitles Searchlight to receive, upon exercise, an amount payable at our election in either cash or shares of GCI's Class A common stock equal in value to the excess of the fair market value of a share of GCI Class A common stock on the date of exercise over the price of $13.00. |

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| - Definition
The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.
+ References
No definition available.
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