Summary of Significant Accounting Policies	3 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Interim Financial Statements The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three month period ended December 31, 2017 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2018. The consolidated balance sheet at September 30, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2017 (File No. 001-32502). Basis of Consolidation The accompanying financial statements present the consolidated accounts of all entities in which the Company has a controlling voting interest and/or variable interest required to be consolidated in accordance with U.S. GAAP. All intercompany balances and transactions have been eliminated. Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, Consolidation (“ASC 810”), requires the Company first evaluate its investments to determine if any investments qualify as a variable interest entity (“VIE”). A VIE is consolidated if the Company is deemed to be the primary beneficiary of the VIE, which is the party involved with the VIE that has both (i) the power to control the most significant activities of the VIE and (ii) either the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. If an entity is not deemed to be a VIE, the Company consolidates the entity if the Company has a controlling voting interest. The Company maintains a 52-53 week fiscal year ending on the last Friday in each reporting period. As such, all references to December 31, 2017 and December 31, 2016 relate to the periods ended December 29, 2017 and December 30, 2016, respectively. For convenience purposes, the Company continues to date its financial statements as of December 31. The fiscal year ended September 30, 2017 ended on September 29, 2017. The Company has performed a review of all subsequent events through the date the financial statements were issued, and has determined that no additional disclosures are necessary. Income Taxes At the end of each interim period, the Company makes its best estimate of the effective tax rate expected to be applicable for the full fiscal year and uses that rate to provide for income taxes on a current year-to-date basis before discrete items. If a reliable estimate of the annual effective tax rate cannot be made, which could be caused by the significant variability in rates when marginal earnings are expected for the year, a discrete tax rate is calculated for the period. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). In accordance with ASC Topic 740, Income Taxes (“ASC 740”) the Company recorded the impacts in the period of enactment. Furthermore, the SEC has provided guidance under Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”) that allows companies, for one year following the enactment date, to consider the impact of the Tax Act as “provisional” when a company can make a reasonable estimate but does not have the necessary information available, prepared or analyzed in reasonable detail to finalize its accounting for the impact of the Tax Act. A company may need to reflect adjustments to its provisional amounts upon obtaining, preparing or analyzing additional information about facts and circumstances that existed at the period of enactment. New Accounting Pronouncements In October 2017, the Company adopted ASU 2016-09, Compensation - Stock Compensation ("ASU 2016-09"). This ASU provides amended guidance which simplifies the accounting for share-based payment transactions involving multiple aspects of the accounting for share-based transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The adoption of ASU 2016-09 did not have any effect on the Company’s consolidated financial statements and footnote disclosures as of December 31, 2017. In May 2014, the FASB issued guidance codified in ASC 606, Revenue from Contracts with Customers (“ASC 606”), which replaces the guidance in former ASC 605, Revenue Recognition and ASC 928-605, Entertainment – Music. The amendment was the result of a joint effort by the FASB and the International Accounting Standards Board to improve financial reporting by creating common revenue recognition guidance for U.S. GAAP and international financial reporting standards ("IFRS"). The joint project clarifies the principles for recognizing revenue and develops a common revenue standard for U.S. GAAP and IFRS. ASC 606 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The update may be applied using one of two methods: retrospective application to each prior reporting period presented, or retrospective application with the cumulative effect of initially applying the update recognized at the date of initial application. The Company currently plans to adopt this ASU under the modified retrospective method and is evaluating the impact of the adoption of this standard on its financial statements and disclosures. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This ASU will require that equity investments are measured at fair value with changes in fair value recognized in net income. The Company may elect to measure equity investments that do not have a readily determinable fair value at cost minus impairment, if any, plus or minus changes resulting from observable price. ASU 2016-01 will be effective for annual periods beginning after December 15, 2017, and interim periods within those years. Earlier adoption is permitted. The adoption of this standard is not expected to have a significant impact on the Company’s financial statements, other than disclosure. In February 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). This ASU establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the statement of operations. ASU 2016-02 will be effective for annual periods beginning after December 15, 2018, and interim periods within those years. Earlier adoption is permitted. The Company is evaluating the impact of the adoption of this standard on its financial statements and disclosures. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). This ASU provides specific guidance of how certain cash receipts and cash payments should be presented and classified in the statement of cash flows. ASU 2016-15 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted. The adoption of this standard is not expected to have a significant impact on the Company’s financial statements, other than presentation. In October 2016, the FASB issued ASU 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory ("ASU 2016-16"). This ASU requires the recognition of current and deferred income taxes for intra-entity asset transfers when the transaction occurs. ASU 2016-16 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted using the modified retrospective approach with a cumulative-effect to opening retained earnings in the period of adoption. The Company does not plan to early adopt this standard and the impact upon the required adoption date is not known or reasonably estimable. In August 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities (“ASU 2017-12”). This ASU improves certain aspects of the hedge accounting model including making more risk management strategies eligible for hedge accounting and simplifying the assessment of hedge effectiveness. ASU 2017-12 is effective for all annual periods beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted and requires a prospective adoption with a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption for existing hedging relationships. The Company is evaluating the impact of the adoption of this standard on its financial statements and disclosures.

2. Summary of Significant Accounting Policies

Interim Financial Statements

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three month period ended December 31, 2017 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2018.

The consolidated balance sheet at September 30, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements.

For further information, refer to the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2017 (File No. 001-32502).

Basis of Consolidation

The accompanying financial statements present the consolidated accounts of all entities in which the Company has a controlling voting interest and/or variable interest required to be consolidated in accordance with U.S. GAAP. All intercompany balances and transactions have been eliminated.

Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, Consolidation (“ASC 810”), requires the Company first evaluate its investments to determine if any investments qualify as a variable interest entity (“VIE”). A VIE is consolidated if the Company is deemed to be the primary beneficiary of the VIE, which is the party involved with the VIE that has both (i) the power to control the most significant activities of the VIE and (ii) either the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. If an entity is not deemed to be a VIE, the Company consolidates the entity if the Company has a controlling voting interest.

The Company maintains a 52-53 week fiscal year ending on the last Friday in each reporting period. As such, all references to December 31, 2017 and December 31, 2016 relate to the periods ended December 29, 2017 and December 30, 2016, respectively. For convenience purposes, the Company continues to date its financial statements as of December 31. The fiscal year ended September 30, 2017 ended on September 29, 2017.

The Company has performed a review of all subsequent events through the date the financial statements were issued, and has determined that no additional disclosures are necessary.

Income Taxes

At the end of each interim period, the Company makes its best estimate of the effective tax rate expected to be applicable for the full fiscal year and uses that rate to provide for income taxes on a current year-to-date basis before discrete items. If a reliable estimate of the annual effective tax rate cannot be made, which could be caused by the significant variability in rates when marginal earnings are expected for the year, a discrete tax rate is calculated for the period.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). In accordance with ASC Topic 740, Income Taxes (“ASC 740”) the Company recorded the impacts in the period of enactment. Furthermore, the SEC has provided guidance under Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”) that allows companies, for one year following the enactment date, to consider the impact of the Tax Act as “provisional” when a company can make a reasonable estimate but does not have the necessary information available, prepared or analyzed in reasonable detail to finalize its accounting for the impact of the Tax Act. A company may need to reflect adjustments to its provisional amounts upon obtaining, preparing or analyzing additional information about facts and circumstances that existed at the period of enactment.

New Accounting Pronouncements

In October 2017, the Company adopted ASU 2016-09, Compensation - Stock Compensation ("ASU 2016-09"). This ASU provides amended guidance which simplifies the accounting for share-based payment transactions involving multiple aspects of the accounting for share-based transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The adoption of ASU 2016-09 did not have any effect on the Company’s consolidated financial statements and footnote disclosures as of December 31, 2017.

In May 2014, the FASB issued guidance codified in ASC 606, Revenue from Contracts with Customers (“ASC 606”), which replaces the guidance in former ASC 605, Revenue Recognition and ASC 928-605, Entertainment – Music. The amendment was the result of a joint effort by the FASB and the International Accounting Standards Board to improve financial reporting by creating common revenue recognition guidance for U.S. GAAP and international financial reporting standards ("IFRS"). The joint project clarifies the principles for recognizing revenue and develops a common revenue standard for U.S. GAAP and IFRS. ASC 606 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The update may be applied using one of two methods: retrospective application to each prior reporting period presented, or retrospective application with the cumulative effect of initially applying the update recognized at the date of initial application. The Company currently plans to adopt this ASU under the modified retrospective method and is evaluating the impact of the adoption of this standard on its financial statements and disclosures.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This ASU will require that equity investments are measured at fair value with changes in fair value recognized in net income. The Company may elect to measure equity investments that do not have a readily determinable fair value at cost minus impairment, if any, plus or minus changes resulting from observable price. ASU 2016-01 will be effective for annual periods beginning after December 15, 2017, and interim periods within those years. Earlier adoption is permitted. The adoption of this standard is not expected to have a significant impact on the Company’s financial statements, other than disclosure.

In February 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). This ASU establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the statement of operations. ASU 2016-02 will be effective for annual periods beginning after December 15, 2018, and interim periods within those years. Earlier adoption is permitted. The Company is evaluating the impact of the adoption of this standard on its financial statements and disclosures.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). This ASU provides specific guidance of how certain cash receipts and cash payments should be presented and classified in the statement of cash flows. ASU 2016-15 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted. The adoption of this standard is not expected to have a significant impact on the Company’s financial statements, other than presentation.

In October 2016, the FASB issued ASU 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory ("ASU 2016-16"). This ASU requires the recognition of current and deferred income taxes for intra-entity asset transfers when the transaction occurs. ASU 2016-16 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted using the modified retrospective approach with a cumulative-effect to opening retained earnings in the period of adoption. The Company does not plan to early adopt this standard and the impact upon the required adoption date is not known or reasonably estimable.

In August 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities (“ASU 2017-12”). This ASU improves certain aspects of the hedge accounting model including making more risk management strategies eligible for hedge accounting and simplifying the assessment of hedge effectiveness. ASU 2017-12 is effective for all annual periods beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted and requires a prospective adoption with a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption for existing hedging relationships. The Company is evaluating the impact of the adoption of this standard on its financial statements and disclosures.