v3.25.4

Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Retirement Benefits [Abstract] |  |  |
Total expense related to all benefit plans | $ 6.3 | $ 6.7 | $ 6.7

X
- 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

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