Accounting Changes and Recent Accounting Pronouncements	9 Months Ended
Jun. 30, 2018
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Accounting Changes and Recent Accounting Pronouncements	3. Accounting Changes and Recent Accounting Pronouncements Accounting Changes In November 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Income Taxes, which requires that deferred tax assets, net of related valuation allowances, and deferred tax liabilities be reported as noncurrent in a classified balance sheet. We adopted the new standard retrospectively effective October 1, 2017. Accordingly, the adoption of ASU No. 2015-17 resulted in a decrease in current deferred income tax assets of $28.4 million, a decrease in current deferred income tax liabilities, included in accrued liabilities, of $2.0 million, a net increase in noncurrent deferred income tax assets, included in other assets, of $4.3 million and a net decrease in noncurrent deferred income tax liabilities of $22.1 million in our previously reported consolidated balance sheet as of September 30, 2017. Recent Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which will supersede Accounting Standards Codification (“ASC”) Topic 605, Revenue Recognition. A core principle of the new guidance is that an entity should measure revenue in connection with its sale of goods and services to a customer based on the consideration to which the entity expects to be entitled in exchange for each of those goods and services. The new standard must be adopted using either the retrospective or cumulative effect transition method. For public companies, this amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. In connection with the adoption of ASU No. 2014-09, we expect to change our classification of deferred revenue and product cost in connection with certain sales of salon equipment to customers. We are in the process of designing changes to our processes and controls to ensure the timely identification of new revenue streams that may affect our revenue recognition processes in the future. We are also assessing the disclosure requirements contained in the new standard and anticipate being compliant with the additional disclosures about our revenue recognition practices required by the new standard. We anticipate electing the modified retrospective transition method upon adoption at October 1, 2018. We have not yet adopted this accounting pronouncement and we do not believe, based on our assessment, that adoption will have a material effect on our consolidated results of operations and consolidated financial position. In February 2016, the FASB issued ASU No. 2016-02, Leases, which will require most leases to be reported on the balance sheet as a right-of-use asset and a lease liability. Under the new guidance, the lease liability must be measured initially based on the present value of future lease payments, subject to certain conditions. The right-of-use asset must be measured initially based on the amount of the liability, plus certain initial direct costs. The new guidance further requires that leases be classified at inception as either (a) operating leases or (b) finance leases. For operating leases, periodic expense will generally be flat (straight-line) throughout the life of the lease. For finance leases, periodic expense will decline (similar to capital leases under prior rules) over the life of the lease. The new standard must be adopted using a modified retrospective transition method. For public companies, this standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We will adopted this pronouncement on October 1, 2019. We have completed a preliminary assessment of the potential impact of adopting ASU No. 2016-02 on our consolidated financial statements. At June 30, 2018, adoption of ASU No. 2016-02 would have resulted in recognition of a right-of-use asset in the estimated amount of approximately $600.0 million and a lease liability for a similar amount in our consolidated balance sheet. We do not believe adoption of ASU No. 2016-02 will have a material impact on our consolidated results of operations or consolidated cash flows. The amount of the right-of-use asset and the lease liability we ultimately recognize may materially differ from this preliminary estimate, including as a result of future organic growth in our business, changes in interest rates, and potential acquisitions. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815), Targeted Improvements to Accounting for Hedging Activities, which is intended to better align an entity’s risk management activities and its financial reporting for hedging relationships. ASU No. 2017-12 will change both the designation and measurement guidance for a qualifying hedging relationship and the presentation of the impact of the hedging relationship on the entity’s financial statements. In addition, ASU No. 2017-12 contains targeted improvements to ease the application of current guidance related to the assessment of hedge effectiveness and eliminates the requirement for an entity to separately measure and report hedge ineffectiveness. For public companies, these amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We have not yet adopted the accounting pronouncement and do not believe, based on our preliminary assessment, that adoption will have a material effect on our consolidated financial statements.

3. Accounting Changes and Recent Accounting Pronouncements

Accounting Changes

In November 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Income Taxes, which requires that deferred tax assets, net of related valuation allowances, and deferred tax liabilities be reported as noncurrent in a classified balance sheet. We adopted the new standard retrospectively effective October 1, 2017. Accordingly, the adoption of ASU No. 2015-17 resulted in a decrease in current deferred income tax assets of $28.4 million, a decrease in current deferred income tax liabilities, included in accrued liabilities, of $2.0 million, a net increase in noncurrent deferred income tax assets, included in other assets, of $4.3 million and a net decrease in noncurrent deferred income tax liabilities of $22.1 million in our previously reported consolidated balance sheet as of September 30, 2017.

Recent Accounting Pronouncements

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which will supersede Accounting Standards Codification (“ASC”) Topic 605, Revenue Recognition. A core principle of the new guidance is that an entity should measure revenue in connection with its sale of goods and services to a customer based on the consideration to which the entity expects to be entitled in exchange for each of those goods and services. The new standard must be adopted using either the retrospective or cumulative effect transition method. For public companies, this amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. In connection with the adoption of ASU No. 2014-09, we expect to change our classification of deferred revenue and product cost in connection with certain sales of salon equipment to customers. We are in the process of designing changes to our processes and controls to ensure the timely identification of new revenue streams that may affect our revenue recognition processes in the future. We are also assessing the disclosure requirements contained in the new standard and anticipate being compliant with the additional disclosures about our revenue recognition practices required by the new standard. We anticipate electing the modified retrospective transition method upon adoption at October 1, 2018. We have not yet adopted this accounting pronouncement and we do not believe, based on our assessment, that adoption will have a material effect on our consolidated results of operations and consolidated financial position.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which will require most leases to be reported on the balance sheet as a right-of-use asset and a lease liability. Under the new guidance, the lease liability must be measured initially based on the present value of future lease payments, subject to certain conditions. The right-of-use asset must be measured initially based on the amount of the liability, plus certain initial direct costs. The new guidance further requires that leases be classified at inception as either (a) operating leases or (b) finance leases. For operating leases, periodic expense will generally be flat (straight-line) throughout the life of the lease. For finance leases, periodic expense will decline (similar to capital leases under prior rules) over the life of the lease. The new standard must be adopted using a modified retrospective transition method. For public companies, this standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We will adopted this pronouncement on October 1, 2019. We have completed a preliminary assessment of the potential impact of adopting ASU No. 2016-02 on our consolidated financial statements. At June 30, 2018, adoption of ASU No. 2016-02 would have resulted in recognition of a right-of-use asset in the estimated amount of approximately $600.0 million and a lease liability for a similar amount in our consolidated balance sheet. We do not believe adoption of ASU No. 2016-02 will have a material impact on our consolidated results of operations or consolidated cash flows. The amount of the right-of-use asset and the lease liability we ultimately recognize may materially differ from this preliminary estimate, including as a result of future organic growth in our business, changes in interest rates, and potential acquisitions.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815), Targeted Improvements to Accounting for Hedging Activities, which is intended to better align an entity’s risk management activities and its financial reporting for hedging relationships. ASU No. 2017-12 will change both the designation and measurement guidance for a qualifying hedging relationship and the presentation of the impact of the hedging relationship on the entity’s financial statements. In addition, ASU No. 2017-12 contains targeted improvements to ease the application of current guidance related to the assessment of hedge effectiveness and eliminates the requirement for an entity to separately measure and report hedge ineffectiveness. For public companies, these amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We have not yet adopted the accounting pronouncement and do not believe, based on our preliminary assessment, that adoption will have a material effect on our consolidated financial statements.