Description of Business and Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Principles of Consolidation The consolidated financial statements include the accounts of AMC Networks and its subsidiaries in which a controlling voting interest is maintained or variable interest entities ("VIEs") in which the Company has determined it is the primary beneficiary. 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. 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, 2018 contained in the Company's Annual Report on Form 10-K ("2018 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, 2019.
Program Rights	Program RightsThe 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 included in technical and operating expense.
Use of Estimates	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 useful lives and methodologies used to amortize and assess recoverability of program rights, the estimated useful lives of intangible assets and the valuation and recoverability of goodwill and intangible assets.
Adoption of New Lease Standard and Recently Issued Accounting Pronouncements	Adoption of New Lease Standard The Company adopted ASU No. 2016-02, Leases (Topic 842) on January 1, 2019, using the modified retrospective approach and effective date method. In addition, the Company elected the package of practical expedients, permitted under the transition guidance within the new standard, which among other things, allowed for the carry forward of the historical classification of leases. The adoption of the new standard resulted in additional net lease assets of $180.0 million (which is net of the historical deferred rent liability balance of $57.0 million) and lease liabilities of $237.0 million, respectively, as of January 1, 2019. The new standard did not materially impact our consolidated net income or cash flows. See Note 10 for further discussion regarding leases. Recently Issued Accounting Pronouncements In August 2018, the Financial Accounting Standards Board ("FASB") issued ASU No. 2018-13, Fair Value Measurement (Topic 820). ASU 2018-13 changes the disclosure requirements for fair value measurements and is effective for the first quarter of 2020, with early adoption permitted. ASU 2018-13 changes disclosure requirements related to transfers between Level I and II assets, as well as several aspects surrounding the valuation process and unrealized gains and losses related to Level III assets. The Company is currently evaluating the impact the adoption of the modified disclosure requirements will have on its consolidated financial statements. In March 2019, the FASB issued ASU No. 2019-02, Improvements to Accounting for Costs of Films and License Agreements for Program Materials. ASU 2019-02 aligns the accounting for production costs of episodic television series with the accounting for production costs of films. In addition, ASU 2019-02 modifies certain aspects of the capitalization, impairment, presentation and disclosure requirements in Accounting Standards Codification (“ASC”) 926-20 and the impairment, presentation and disclosure requirements in ASC 920-350. The changes in this standard are effective for the first quarter of 2020, with early adoption permitted. The Company is currently evaluating the impact the adoption of the prospective disclosure requirements will have on its consolidated financial statements.

Description of Business and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Principles of Consolidation

The consolidated financial statements include the accounts of AMC Networks and its subsidiaries in which a controlling voting interest is maintained or variable interest entities ("VIEs") in which the Company has determined it is the primary beneficiary. 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.

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, 2018 contained in the Company's Annual Report on Form 10-K ("2018 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, 2019.

Program Rights

Program RightsThe 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 included in technical and operating expense.

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 useful lives and methodologies used to amortize and assess recoverability of program rights, the estimated useful lives of intangible assets and the valuation and recoverability of goodwill and intangible assets.

Adoption of New Lease Standard and Recently Issued Accounting Pronouncements

Adoption of New Lease Standard

The Company adopted ASU No. 2016-02, Leases (Topic 842) on January 1, 2019, using the modified retrospective approach and effective date method. In addition, the Company elected the package of practical expedients, permitted under the transition guidance within the new standard, which among other things, allowed for the carry forward of the historical classification of leases. The adoption of the new standard resulted in additional net lease assets of $180.0 million (which is net of the historical deferred rent liability balance of $57.0 million) and lease liabilities of $237.0 million, respectively, as of January 1, 2019. The new standard did not materially impact our consolidated net income or cash flows. See Note 10 for further discussion regarding leases.

Recently Issued Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board ("FASB") issued ASU No. 2018-13, Fair Value Measurement (Topic 820). ASU 2018-13 changes the disclosure requirements for fair value measurements and is effective for the first quarter of 2020, with early adoption permitted. ASU 2018-13 changes disclosure requirements related to transfers between Level I and II assets, as well as several aspects surrounding the valuation process and unrealized gains and losses related to Level III assets. The Company is currently evaluating the impact the adoption of the modified disclosure requirements will have on its consolidated financial statements.

In March 2019, the FASB issued ASU No. 2019-02, Improvements to Accounting for Costs of Films and License Agreements for Program Materials. ASU 2019-02 aligns the accounting for production costs of episodic television series with the accounting for production costs of films. In addition, ASU 2019-02 modifies certain aspects of the capitalization, impairment, presentation and disclosure requirements in Accounting Standards Codification (“ASC”) 926-20 and the impairment, presentation and disclosure requirements in ASC 920-350. The changes in this standard are effective for the first quarter of 2020, with early adoption permitted. The Company is currently evaluating the impact the adoption of the prospective disclosure requirements will have on its consolidated financial statements.