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Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract] |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 4.00% |  |
Benefit Plan Expense, Defined Benefit Plans and Defined Contribution Plans | $ 10,859 | $ 13,505 | $ 13,849

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- Definition The Total Expense Related To The Defined Benefit Plans and Defined Contribution Plans. + References No definition available. + Details
Name: | amcx_BenefitPlanExpenseDefinedBenefitPlansAndDefinedContributionPlans
Namespace Prefix: | amcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration