Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Summary of minimum future lease payments) (Details)

v2.4.1.9
Commitments and Contingencies (Summary of minimum future lease payments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Operating  
2014 $ 38,830us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2015 34,892us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2016 26,772us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2017 22,666us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2018 20,157us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
2019 and thereafter 63,809us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter
Total minimum lease payments 207,126us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Capital  
2014 13,444us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent
2015 13,454us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears
2016 13,433us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears
2017 13,440us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears
2018 13,450us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears
2019 and thereafter 33,208us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter
Total minimum lease payments 100,429us-gaap_CapitalLeasesFutureMinimumPaymentsDue
Less amount representing interest 23,973us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
Less current maturity of obligations under capital leases 8,100us-gaap_CapitalLeaseObligationsCurrent
Obligations under capital leases, excluding current maturities $ 68,356gncma_CapitalLeaseObligationsNoncurrentIncludingRelatedParty