Description of Business and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation, Policy	Principles of Consolidation These unaudited condensed consolidated financial statements include the accounts of AMC Networks and its majority owned or controlled subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Investments in business entities in which the Company lacks control but does have the ability to exercise significant influence over operating and financial policies are accounted for using the equity method of accounting, unless the fair value option is elected. Unaudited Interim Financial Statements These condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and Article 10 of Regulation S-X of the Securities and Exchange Commission (“SEC”), and should be read in conjunction with the Company’s consolidated financial statements and notes thereto for the year ended December 31, 2016 contained in the Company’s Annual Report on Form 10-K (“2016 Form 10-K”) filed with the SEC. The condensed consolidated financial statements presented in this Quarterly Report on Form 10-Q are unaudited; however, in the opinion of management, such financial statements reflect all adjustments, consisting solely of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods presented. The results of operations for interim periods are not necessarily indicative of the results that might be expected for future interim periods or for the full year ending December 31, 2017.
Program Rights, Policy	Program Rights The Company periodically reviews the programming usefulness of its licensed and owned original program rights based on a series of factors, including expected future revenue generation from airings on the Company’s networks and other exploitation opportunities, ratings, type and quality of program material, standards and practices, and fitness for exhibition through various forms of distribution. If it is determined that film or other program rights have limited, or no future programming usefulness, a write-off of the unamortized cost is recorded in technical and operating expense. Program rights write-offs included in technical and operating expense of $8.0 million and $19.6 million were recorded for the three months ended September 30, 2017 and September 30, 2016, respectively. Program rights write-offs included in technical and operating expense of $9.7 million and $20.7 million were recorded for the nine months ended September 30, 2017 and September 30, 2016, respectively.
Use of Estimates, Policy	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reported period. Actual results could differ from those estimates. Significant estimates and judgments inherent in the preparation of the consolidated financial statements include the valuation of acquisition-related assets and liabilities, derivative assets and liabilities, certain stock compensation awards, the useful lives and methodologies used to amortize and assess recoverability of program rights, the estimated useful lives of intangible assets, valuation and recoverability of goodwill and intangible assets and income tax assets and liabilities.
New Accounting Pronouncements, Policy	Recently Adopted and Recently Issued Accounting Pronouncements Recently Adopted Accounting Pronouncements The Company adopted Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting, which became effective for the Company as of January 1, 2017. ASU 2016-09 amends Accounting Standards Codification ("ASC") Topic 718, Compensation – Stock Compensation and simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification in the statement of cash flows. Under the new standard, all excess tax benefits and tax deficiencies are recorded as a component of the provision for income taxes in the reporting period in which they occur. Additionally, ASU 2016-09 requires that the Company present excess tax benefits in the statement of cash flows as an operating activity. The Company elected to apply this adoption prospectively; accordingly, prior periods have not been adjusted. The adoption of this standard did not have a material impact on the Company's condensed consolidated financial statements. Recently Issued Accounting Pronouncements In May 2017, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2017-09 Compensation-Stock Compensation (Topic 718). ASU 2017-09 addresses changes to the terms or conditions of a share-based payment award, specifically regarding which changes to the terms or conditions of a share-based payment award would require an entity to apply modification accounting. The guidance does not change the accounting for modifications but clarifies that an entity should account for the effects of a modification unless the fair value, vesting conditions, and classification of the modified award are the same immediately before the original award is modified. ASU 2017-09 is effective in the first quarter of 2018, with early adoption permitted. The adoption of ASU 2017-09 is not expected to have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04 Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. ASU 2017-04 removes Step 2 of the current goodwill impairment test under ASC Topic 350 and replaces it with a simplified model. Under the simplified model, a goodwill impairment is calculated as the difference between the carrying amount of a reporting unit and its fair value, but not to exceed the carrying amount of goodwill. The amount of any impairment under the simplified model may differ from what would have been recognized under the two-step test. The ASU is effective for the Company in the first quarter of 2020, with early adoption permitted for any impairment tests performed after a testing date of January 1, 2017. The adoption of ASU 2017-04 is not expected to have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes – Intra-Entity Transfers of Assets Other Than Inventory. ASU 2016-16 simplifies the accounting for the income tax consequences of intra-entity transfers of assets other than inventory and includes requirements to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs; therefore, eliminating the exception for an intra-entity transfer of an asset other than inventory. ASU 2016-16 is effective for the Company in the first quarter of 2018, with early adoption permitted. Any adjustments as a result of adoption are to be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The adoption of ASU 2016-16 is not expected to have a material impact on the Company’s consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments. The guidance clarifies the way in which certain cash receipts and cash payments should be classified on the statement of cash flows and also how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. ASU 2016-15 is effective in the first quarter of 2018 with early adoption permitted. The adoption of ASU 2016-15 is not expected to have a material impact on the Company's consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). ASU 2016-02 requires lessees to record most of their leases on the balance sheet, which will be recognized as a right-of-use asset and a lease liability. The Company will be required to classify each separate lease component as an operating or finance lease at the lease commencement date. Initial measurement of the right-of-use asset and lease liability is the same for operating and finance leases, however, expense recognition and amortization of the right-of-use asset differs. Operating leases will reflect lease expense on a straight-line basis similar to current operating leases. The straight-line expense will reflect the interest expense on the lease liability (effective interest method) and amortization of the right-of-use asset, which will be presented as a single line item in the operating expense section of the income statement. Finance leases will reflect a front-loaded expense pattern similar to the pattern for current capital leases. ASU 2016-02 is effective in the first quarter of 2019, with early adoption permitted. The Company is currently determining its implementation approach and assessing the impact the adoption will have on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 provides new guidance related to how an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard also expands the required disclosures to include the disaggregation of revenue from contracts with customers into categories that depict how the nature, timing and uncertainty of revenue and cash flows are affected by economic factors. During 2016, the FASB issued additional interpretive guidance relating to the standard which covered the topics of principal versus agent considerations and identifying performance obligations and licensing. The standard is effective for the Company in the first quarter of 2018. The two permitted transition methods under the standard are the full retrospective method, in which case the standard would be applied to each prior reporting period presented and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The Company established an implementation team and performed an analysis of each of our revenue streams to assess the impact of the standard on our various revenue contracts, and analyze our current accounting policies and practices to identify potential differences that would result from the implementation of the standard. To date, the Company has made significant progress toward completing its evaluation of the potential changes from adopting the standard on its financial reporting and disclosures. The Company has completed an initial assessment of each of its revenue streams and has begun drafting its revenue recognition policy under the new standard. Based on our initial assessment, upon adoption the Company expects to record a contract asset associated with our distribution revenues primarily as a result of the accelerated revenue recognition under the variable consideration and licensing guidance in the new standard. We have not completed a quantification of the contract asset, however, the amount is not expected to be significant to our financial position. There are a few areas that remain subject to further clarification with respect to the implementation of the new standard on certain of our revenue streams. The Company continues to monitor and work with various non-authoritative groups to conclude on industry specific interpretative issues. Our final evaluation of the impact of the standard is ongoing and will continue throughout 2017. We expect to implement the standard using the modified retrospective transition method.