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Commitments (Narrative) (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract] |  |
Increase in contractual obligations not reflected in the balance sheet | $ 13,089 |
Contractual Obligation | $ 1,420,242 | $ 1,407,153

X
- Definition The increase (decrease) during the reporting period for the amount of fixed and determinable portion of unrecorded balance sheet arrangements consisting of purchase obligations of long-term program rights obligations that have not yet met the criteria to be recorded on the balance sheet, operating leases and guarantees. + References No definition available. + Details
Name: | amcx_IncreaseDecreaseInContractualObligationsNotReflectedInBalanceSheet
Namespace Prefix: | amcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant