Long-Term Debt (Details) (USD $)
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3 Months Ended | 0 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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Feb. 02, 2015
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Debt Instrument [Line Items] | |||
Loan fees and other expenses | $ 5,853,000us-gaap_PaymentsOfDebtIssuanceCosts | $ 0us-gaap_PaymentsOfDebtIssuanceCosts | |
Medium-term Notes [Member] | Amended Senior Credit Facility [Member] | |||
Debt Instrument [Line Items] | |||
Debt face amount |
275,000,000.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = gncma_AmendedSeniorCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MediumTermNotesMember |
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Percentage of principal payable |
0.25%gncma_DebtInstrumentPeriodicPaymentPrincipalPercentage / us-gaap_DebtInstrumentAxis = gncma_AmendedSeniorCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MediumTermNotesMember |
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Loan fees and other expenses |
5,900,000us-gaap_PaymentsOfDebtIssuanceCosts / us-gaap_DebtInstrumentAxis = gncma_AmendedSeniorCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MediumTermNotesMember |
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Medium-term Notes [Member] | Amended Senior Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | |||
Debt Instrument [Line Items] | |||
Spread on variable rate |
3.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = gncma_AmendedSeniorCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MediumTermNotesMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
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Interest rate floor |
1.00%gncma_DebtInstrumentVariableRateFloor / us-gaap_DebtInstrumentAxis = gncma_AmendedSeniorCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MediumTermNotesMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
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Unsecured Debt [Member] | Searchlight ALX, LP Promissory Note [Member] | |||
Debt Instrument [Line Items] | |||
Debt face amount |
75,000,000.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = gncma_SearchlightALXLPPromissoryNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember |
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Debt stated percentage |
7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = gncma_SearchlightALXLPPromissoryNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember |
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Unamortized discount |
$ 21,700,000.0us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_DebtInstrumentAxis = gncma_SearchlightALXLPPromissoryNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember |
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Common Stock - Class A [Member] | Stock Appreciation Rights (SARs) [Member] | |||
Debt Instrument [Line Items] | |||
Exercise price of stock appreciation rights (per share) |
$ 13.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Stock Appreciation Rights |
3,000,000us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_ClassOfWarrantOrRightAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Stock Appreciation Rights issued for interest capitalization |
4.00%gncma_PercentofRightPayableperDollarofCapitalizedInterest / us-gaap_ClassOfWarrantOrRightAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
X | ||||||||||
- Definition
Debt Instrument, Periodic Payment, Principal, Percentage No definition available.
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- Definition
Debt Instrument, Variable Rate Floor No definition available.
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- Definition
Percent of a right payable per dollar of capitalized interest, payable if interest on debt is capitalized instead of paid when due. No definition available.
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- Definition
Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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- Definition
Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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- Details
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