| **Fair Value Measurements and Derivative Instruments** | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Fair Value Disclosures [Abstract]**                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Fair Value Measurements and Derivative Instruments     | Fair Value Measurements and Derivative InstrumentRecurring Fair Value MeasurementsAssets and liabilities measured at fair value on a recurring basis as of September 30, 2016 and December 31, 2015 are as follows (amounts in thousands):September 30, 2016Level 1 (1) Level 2 (2) Level 3 (3) TotalAssets:       Deferred compensation plan assets (mutual funds)$1,462 — — 1,462Liabilities:       Derivative stock appreciation rights$— — 16,980 16,980        December 31, 2015Level 1 (1) Level 2 (2) Level 3 (3) TotalAssets:       Deferred compensation plan assets (mutual funds)$1,728 — — 1,728Liabilities:       Derivative stock appreciation rights$— — 32,820 32,820        (1) Quoted prices in active markets for identical assets or liabilities(2) Observable inputs other than quoted prices in active markets for identical assets and liabilities(3) Inputs that are generally unobservable and not corroborated by market dataThe fair value of our mutual funds is determined using quoted market prices in active markets utilizing market observable inputs.The fair value of our derivative stock appreciation rights was determined using a lattice-based valuation model (see the section "Derivative Financial Instrument" below for more information). Current and Long-Term DebtThe carrying amounts and approximate fair values of our current and long-term debt, excluding capital leases, at September 30, 2016 and December 31, 2015 are as follows (amounts in thousands): September 30, 2016 December 31, 2015 Carrying Amount Fair Value Carrying Amount Fair ValueCurrent and long-term debt$1,333,535 1,392,626 1,348,106 1,390,743The following methods and assumptions were used to estimate fair values:•The fair values of the 6.75% Senior Notes due 2021 and the 6.875% Senior Notes due 2025 both issued by GCI, Inc., our wholly owned subsidiary, are based upon quoted market prices for the same or similar issues (Level 2).  •The fair value of our Searchlight Note Payable is based on the current rates offered to us for similar remaining maturities plus an additional premium to reflect its subordination to our 2021 and 2025 Notes (Level 3). •The fair value of our Amended Senior Credit Facility and Wells Fargo note payable are estimated to approximate their carrying value because the instruments are subject to variable interest rates (Level 2).Derivative Financial InstrumentIn connection with the $75.0 million unsecured promissory note issued to Searchlight on February 2, 2015, we entered into a stock appreciation rights agreement pursuant to which we issued to Searchlight three million stock appreciation rights. Each stock appreciation right 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 $13.00. The instrument is exercisable on the fourth anniversary of the grant date and will expire eight years from the date of grant. We have determined that the stock appreciation rights are required to be separately accounted for as a derivative instrument and subject to fair value liability accounting under ASC 815-10.We use a  lattice based valuation model to value the stock appreciation rights liability at each reporting date. The model incorporates transaction details such as our stock price, instrument term and settlement provisions, as well as highly complex and subjective assumptions about volatility, risk-free interest rates, issuer behavior and holder behavior.  The lattice model uses highly subjective assumptions and the use of other reasonable assumptions could provide different results. The following table shows our significant assumptions and inputs used in the lattice-based valuation model to value the stock appreciation right liability at September 30, 2016: September 30, 2016Contractual term (in years)2.3 - 6.3Volatility40%Risk-free interest rate1.3%The following table summarizes the changes in fair value of our financial instrument measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the nine months ended September 30, 2016 and 2015 (amounts in thousands):Fair Value Measurement Using Level 3 Inputs Derivative Stock Appreciation RightsBalance at January 1, 2015$—Issuance21,660Fair value adjustment at end of period, included in Other Income (Expense)5,040Balance at September 30, 201526,700  Balance at January 1, 201632,820Fair value adjustment at end of period, included in Other Income (Expense)(15,840)Balance at September 30, 2016$16,980 |

| X                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - References
No definition available.
+ Details**Name:**us-gaap_FairValueDisclosuresAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13504-108611Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611
+ Details**Name:**us-gaap_FairValueDisclosuresTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |