BASIS OF PRESENTATION AND ORGANIZATION (Block)	3 Months Ended
Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements Abstract
Business Description And Basis Of Presentation Text Block	1. BASIS OF PRESENTATION AND SIGNIFICANT POLICIES The condensed consolidated interim unaudited financial statements included herein have been prepared by Entercom Communications Corp. and its subsidiaries (collectively, the “Company”) in accordance with: (i) generally accepted accounting principles (“U.S. GAAP”) for interim financial information; and (ii) the instructions of the Securities and Exchange Commission (the “SEC”) for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for annual financial statements. In the opinion of management, the financial statements reflect all adjustments considered necessary for a fair statement of the results of operations and financial position for the interim periods presented. All such adjustments are of a normal and recurring nature. The Company’s results are subject to seasonal fluctuations and, therefore, the results shown on an interim basis are not necessarily indicative of results for a full year. This Form 10-Q should be read in conjunction with the financial statements and related notes included in the Company’s audited financial statements as of and for the year ended December 31, 2017, and filed with the SEC on March 16, 2018, as part of the Company’s Annual Report on Form 10-K. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. On February 2, 2017, the Company and its wholly-owned subsidiary (“Merger Sub”) entered into an Agreement and Plan of Merger (the “CBS Radio Merger Agreement”) with CBS Corporation (“CBS”) and its wholly owned subsidiary CBS Radio Inc. (“CBS Radio”). Pursuant to the CBS Radio Merger Agreement, Merger Sub merged with and into CBS Radio with CBS Radio surviving as the Company’s wholly-owned subsidiary (the “Merger”). The parties to the Merger believe that the Merger was tax free to CBS and its shareholders. The Merger was effected through a stock for stock Reverse Morris Trust transaction. The Merger was subject to approval by the Company’s shareholders and customary regulatory approvals. As a result of the Merger, the Company would have owned radio stations in seven markets in excess of the limits set forth in the Federal Communications Commission’s (the “FCC”) local radio ownership rule. In order to comply with this FCC rule, and to obtain clearance for the Merger from the Antitrust Division of the U.S. Department of Justice (“DOJ”), the Company agreed to divest a total of nineteen stations in such markets, consisting of eight stations owned by the Company and eleven owned by CBS Radio. Refer to additional information on divestitures in Note 2, Business Combinations. On November 1, 2017, the Company entered into a settlement with the DOJ. On November 9, 2017, the FCC released an order, pursuant to the Communications Act of 1934, as amended, and the rules and regulations promulgated thereunder, approving the applications filed by CBS Radio and the Company requesting FCC consent to the CBS Radio Merger Agreement. Obtaining the FCC Consent, and its effectiveness in accordance with applicable law and the rules and regulations of the FCC, was a condition to the obligation of CBS, CBS Radio, the Company, and Merger Sub to the consummation of the Merger. On November 15, 2017, the Company’s shareholders approved the Merger. Upon obtaining all required approvals, the Merger closed on November 17, 2017. Based on this timing, the Company’s consolidated financial statements for the three months ended March 31, 2018 reflects the results of radio stations acquired in the Merger, whereas the Company’s consolidated financial statement for the three months ended March 31, 2017 do not. The Company’s strategy focuses on providing compelling content in the communities it serves to enable the Company to offer its advertisers an effective marketing platform to reach a large targeted local audience. The principal components of the Company’s strategy are to: (i) focus on creating effective integrated marketing solutions for its customers that incorporate its audio, digital and experiential assets; (ii) build strongly-branded radio stations with highly compelling content; (iii) develop market leading station clusters; and (iv) recruit, develop, motivate and retain superior employees. There have been no material changes from Note 2, Significant Accounting Policies, as described in the notes to the Company’s financial statements contained in its Form 10-K for the year ended December 31, 2017, that was filed with the SEC on March 16, 2018, other than as described below. Changes in Accounting Policies – Revenue Recognition The Company adopted the amended accounting guidance for revenue recognition on January 1, 2018 using the modified retrospective transition method, without a need to make a cumulative-effect adjustment to retained earnings as of the effective date. As a result, the Company has changed its accounting policy for revenue recognition as described below. Except for the changes below, the Company has consistently applied its accounting policies to all periods presented in these consolidated financial statements. Refer to Note 3, Revenue, for additional information. Under certain practical expedients elected, the Company did not disclose the amount of consideration allocated to the remaining performance obligations or an explanation of when the Company expects to recognize that amount as revenue for all reporting periods presented before January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under the amended accounting guidance, while prior period amounts are not adjusted and continue to be reported in accordance with the Company’s historic accounting guidance. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product or service to a customer, in an amount that reflects the consideration it expects to be entitled to in exchange for those products or services. Revenues presented in the consolidated financial statements are reflected on a net basis, after the deduction of advertising agency fees by the advertising agencies. The Company also evaluates when it is appropriate to recognize revenue based on the gross amount invoiced to the customer or the net amount retained by the Company if a third party is involved. Recent Accounting Pronouncements All new accounting pronouncements that are in effect that may impact the Company’s financial statements have been implemented. The Company does not believe that there are any other new accounting pronouncements that have been issued (other than as noted below or those included in the notes to the Company’s financial statements contained in its Form 10-K for the year ended December 31, 2017, that was filed with the SEC on March 16, 2018) that might have a material impact on the Company’s financial position, results of operations or cash flows. Definition of a Business In January 2017, the accounting guidance was amended to modify the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions or disposals of assets or businesses. The guidance was effective for the Company as of January 1, 2018, under a prospective application method. Based upon the Company’s assessment, the impact of this guidance was not material to the Company’s financial position, results of operations or cash flows. The guidance could have an impact in a future period if the Company acquires or disposes of assets that meet the definition of a business under the amended guidance. Cash Flow Classification In August 2016, the accounting guidance for classifying elements of cash flow was modified. The guidance was effective for the Company as of January 1, 2018, under a retrospective application method. Based upon the Company’s assessment, the impact of this guidance was not material to the Company’s financial position, results of operations or cash flows. Stock-Based Compensation In May 2017, the accounting guidance was amended to clarify modification accounting for stock-based compensation. The guidance was effective for the Company as of January 1, 2018, on a prospective basis. Under the amended guidance, the Company will only apply modification accounting for stock-based compensation if there are: (i) changes in the fair value or intrinsic value of share-based compensation; (ii) changes in the vesting conditions of awards; and (iii) changes in the classification of awards as equity instruments or liability instruments. Based upon the Company’s assessment, the impact of this guidance was not material to the Company’s financial position, results of operations or cash flows. Leasing Transactions In February 2016, the accounting guidance was modified to increase transparency and comparability among organizations by requiring the recognition of right-of-use (“ROU”) assets and lease liabilities on the balance sheet. The most notable change in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases with a term of more than one year. This change will apply to the Company’s leased assets such as real estate, broadcasting towers and equipment. Additionally, the Company will be required to provide additional disclosures to meet the objective of enabling users of the financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company anticipates its accounting for existing capital leases to remain substantially unchanged. While the Company is currently reviewing the effects of this guidance, the Company believes that this modification to operating leases would result in: (i) an increase in the ROU assets and lease liabilities reflected on the Company’s consolidated balance sheets to reflect the rights and obligations created by operating leases with a term of greater than one year; and (ii) no material change to the expense associated with the ROU assets. This guidance is effective for the Company as of January 1, 2019, and must be implemented using a modified retrospective approach, with certain practical expedients available. Financial Instruments In January 2016, the accounting guidance was modified with respect to recognition, measurement, presentation and disclosure of financial instruments. The most notable impact of the amended accounting guidance for the Company is that this modification effectively supersedes and eliminates current accounting guidance for cost-method investments. Refer to Note 10, Fair Value of Financial Instruments, for additional information on the Company’s cost-method investments. The guidance was effective for the Company as of January 1, 2018. The Company adopted the new guidance using a modified retrospective approach, without a need to make a cumulative-effect adjustment to retained earnings as of the effective date. The Company’s investments continue to be carried at their original cost. There have been no impairments in the cost-method investments, returns of capital, or any adjustments resulting from observable price changes in orderly transaction for the investments. Based upon the Company’s assessment, the adoption of this modified accounting guidance did not have a material impact on the Company’s financial position, results of operations, or cash flows. Revenue Recognition In May 2014, the accounting guidance for revenue recognition was modified and subsequently updated with several amendments. Along with these modifications, most industry-specific revenue guidance was eliminated, including a current broadcasting exemption for reporting revenue from network barter programming. The new guidance provides companies with a revenue recognition model for recognizing revenue from contracts with customers. The core principle of the new standard is to recognize revenue when promised goods or services are transferred to customers, in an amount that reflects the consideration that the Company expects to be entitled to in exchange for such goods or services. The new guidance also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The Company has identified changes to its revenue recognition policies related to contracts that contain performance bonuses. The impact of this guidance was not material to the Company’s financial position, results of operations or cash flows. The Company enhanced its disclosures to allow users of the financial statements to comprehend information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the Company’s contracts with its customers. Refer to Note 3, Revenue, for additional information. Reclassifications Certain reclassifications have been made to the prior years’ statements of operations to conform to the presentation in the current year, which did not have a material impact on the Company’s previously reported financial statements. The Company elected to reclassify certain integration charges from merger and acquisition costs in order to provide the users of the financial statements with additional insight into the ongoing costs incurred as a result of the Merger.

This Form 10-Q should be read in conjunction with the financial statements and related notes included in the Company’s audited financial statements as of and for the year ended December 31, 2017, and filed with the SEC on March 16, 2018, as part of the Company’s Annual Report on Form 10-K. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations.

On February 2, 2017, the Company and its wholly-owned subsidiary (“Merger Sub”) entered into an Agreement and Plan of Merger (the “CBS Radio Merger Agreement”) with CBS Corporation (“CBS”) and its wholly owned subsidiary CBS Radio Inc. (“CBS Radio”). Pursuant to the CBS Radio Merger Agreement, Merger Sub merged with and into CBS Radio with CBS Radio surviving as the Company’s wholly-owned subsidiary (the “Merger”). The parties to the Merger believe that the Merger was tax free to CBS and its shareholders. The Merger was effected through a stock for stock Reverse Morris Trust transaction.

The Merger was subject to approval by the Company’s shareholders and customary regulatory approvals. As a result of the Merger, the Company would have owned radio stations in seven markets in excess of the limits set forth in the Federal Communications Commission’s (the “FCC”) local radio ownership rule. In order to comply with this FCC rule, and to obtain clearance for the Merger from the Antitrust Division of the U.S. Department of Justice (“DOJ”), the Company agreed to divest a total of nineteen stations in such markets, consisting of eight stations owned by the Company and eleven owned by CBS Radio. Refer to additional information on divestitures in Note 2, Business Combinations.

On November 1, 2017, the Company entered into a settlement with the DOJ. On November 9, 2017, the FCC released an order, pursuant to the Communications Act of 1934, as amended, and the rules and regulations promulgated thereunder, approving the applications filed by CBS Radio and the Company requesting FCC consent to the CBS Radio Merger Agreement. Obtaining the FCC Consent, and its effectiveness in accordance with applicable law and the rules and regulations of the FCC, was a condition to the obligation of CBS, CBS Radio, the Company, and Merger Sub to the consummation of the Merger. On November 15, 2017, the Company’s shareholders approved the Merger.

Upon obtaining all required approvals, the Merger closed on November 17, 2017. Based on this timing, the Company’s consolidated financial statements for the three months ended March 31, 2018 reflects the results of radio stations acquired in the Merger, whereas the Company’s consolidated financial statement for the three months ended March 31, 2017 do not.

The Company’s strategy focuses on providing compelling content in the communities it serves to enable the Company to offer its advertisers an effective marketing platform to reach a large targeted local audience. The principal components of the Company’s strategy are to: (i) focus on creating effective integrated marketing solutions for its customers that incorporate its audio, digital and experiential assets; (ii) build strongly-branded radio stations with highly compelling content; (iii) develop market leading station clusters; and (iv) recruit, develop, motivate and retain superior employees.

There have been no material changes from Note 2, Significant Accounting Policies, as described in the notes to the Company’s financial statements contained in its Form 10-K for the year ended December 31, 2017, that was filed with the SEC on March 16, 2018, other than as described below.

Changes in Accounting Policies – Revenue Recognition

The Company adopted the amended accounting guidance for revenue recognition on January 1, 2018 using the modified retrospective transition method, without a need to make a cumulative-effect adjustment to retained earnings as of the effective date. As a result, the Company has changed its accounting policy for revenue recognition as described below. Except for the changes below, the Company has consistently applied its accounting policies to all periods presented in these consolidated financial statements. Refer to Note 3, Revenue, for additional information.

Under certain practical expedients elected, the Company did not disclose the amount of consideration allocated to the remaining performance obligations or an explanation of when the Company expects to recognize that amount as revenue for all reporting periods presented before January 1, 2018.

Results for reporting periods beginning after January 1, 2018 are presented under the amended accounting guidance, while prior period amounts are not adjusted and continue to be reported in accordance with the Company’s historic accounting guidance.

The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product or service to a customer, in an amount that reflects the consideration it expects to be entitled to in exchange for those products or services.

Revenues presented in the consolidated financial statements are reflected on a net basis, after the deduction of advertising agency fees by the advertising agencies. The Company also evaluates when it is appropriate to recognize revenue based on the gross amount invoiced to the customer or the net amount retained by the Company if a third party is involved.

Recent Accounting Pronouncements

All new accounting pronouncements that are in effect that may impact the Company’s financial statements have been implemented. The Company does not believe that there are any other new accounting pronouncements that have been issued (other than as noted below or those included in the notes to the Company’s financial statements contained in its Form 10-K for the year ended December 31, 2017, that was filed with the SEC on March 16, 2018) that might have a material impact on the Company’s financial position, results of operations or cash flows.

Definition of a Business

In January 2017, the accounting guidance was amended to modify the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions or disposals of assets or businesses. The guidance was effective for the Company as of January 1, 2018, under a prospective application method. Based upon the Company’s assessment, the impact of this guidance was not material to the Company’s financial position, results of operations or cash flows. The guidance could have an impact in a future period if the Company acquires or disposes of assets that meet the definition of a business under the amended guidance.

Cash Flow Classification

In August 2016, the accounting guidance for classifying elements of cash flow was modified. The guidance was effective for the Company as of January 1, 2018, under a retrospective application method. Based upon the Company’s assessment, the impact of this guidance was not material to the Company’s financial position, results of operations or cash flows.

Stock-Based Compensation

In May 2017, the accounting guidance was amended to clarify modification accounting for stock-based compensation. The guidance was effective for the Company as of January 1, 2018, on a prospective basis. Under the amended guidance, the Company will only apply modification accounting for stock-based compensation if there are: (i) changes in the fair value or intrinsic value of share-based compensation; (ii) changes in the vesting conditions of awards; and (iii) changes in the classification of awards as equity instruments or liability instruments. Based upon the Company’s assessment, the impact of this guidance was not material to the Company’s financial position, results of operations or cash flows.

Leasing Transactions

In February 2016, the accounting guidance was modified to increase transparency and comparability among organizations by requiring the recognition of right-of-use (“ROU”) assets and lease liabilities on the balance sheet. The most notable change in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases with a term of more than one year. This change will apply to the Company’s leased assets such as real estate, broadcasting towers and equipment. Additionally, the Company will be required to provide additional disclosures to meet the objective of enabling users of the financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company anticipates its accounting for existing capital leases to remain substantially unchanged.

While the Company is currently reviewing the effects of this guidance, the Company believes that this modification to operating leases would result in: (i) an increase in the ROU assets and lease liabilities reflected on the Company’s consolidated balance sheets to reflect the rights and obligations created by operating leases with a term of greater than one year; and (ii) no material change to the expense associated with the ROU assets.

This guidance is effective for the Company as of January 1, 2019, and must be implemented using a modified retrospective approach, with certain practical expedients available.

Financial Instruments

In January 2016, the accounting guidance was modified with respect to recognition, measurement, presentation and disclosure of financial instruments. The most notable impact of the amended accounting guidance for the Company is that this modification effectively supersedes and eliminates current accounting guidance for cost-method investments. Refer to Note 10, Fair Value of Financial Instruments, for additional information on the Company’s cost-method investments.

The guidance was effective for the Company as of January 1, 2018. The Company adopted the new guidance using a modified retrospective approach, without a need to make a cumulative-effect adjustment to retained earnings as of the effective date.

The Company’s investments continue to be carried at their original cost. There have been no impairments in the cost-method investments, returns of capital, or any adjustments resulting from observable price changes in orderly transaction for the investments. Based upon the Company’s assessment, the adoption of this modified accounting guidance did not have a material impact on the Company’s financial position, results of operations, or cash flows.

Revenue Recognition

In May 2014, the accounting guidance for revenue recognition was modified and subsequently updated with several amendments. Along with these modifications, most industry-specific revenue guidance was eliminated, including a current broadcasting exemption for reporting revenue from network barter programming. The new guidance provides companies with a revenue recognition model for recognizing revenue from contracts with customers. The core principle of the new standard is to recognize revenue when promised goods or services are transferred to customers, in an amount that reflects the consideration that the Company expects to be entitled to in exchange for such goods or services. The new guidance also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract.

The Company has identified changes to its revenue recognition policies related to contracts that contain performance bonuses. The impact of this guidance was not material to the Company’s financial position, results of operations or cash flows. The Company enhanced its disclosures to allow users of the financial statements to comprehend information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the Company’s contracts with its customers. Refer to Note 3, Revenue, for additional information.