Recent Accounting Pronouncements	9 Months Ended
Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
Recent Accounting Pronouncements	2.Recent Accounting Pronouncements Revenue Recognition In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, which was further updated in March and April 2016. The updated accounting guidance clarifies the principles for recognizing revenue and provides a single, contract-based revenue recognition model in order to create greater comparability for financial statement users across industries and jurisdictions. The core principle of the revenue model is that an entity recognizes revenue to depict the transfer of promised goods or services to clients in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The updated accounting guidance is effective for the Company as of October 1, 2018 and may be adopted using either a full retrospective or modified retrospective approach. The Company has completed its comprehensive contract review project and has developed an understanding of the potential adoption impact to the consolidated financial statements on a qualitative basis. The Company is in the process of finalizing its accounting policies, drafting the new disclosures, quantifying the potential financial adjustment and completing its evaluation of the impact of the accounting and disclosure requirements on its business processes, controls and systems. The Company has also made progress on evaluating the impact the ASU may have related to the timing and presentation of various financial aspects of its contractual arrangements, including performance obligations, application of the series guidance, costs to fulfill and commissions. The Company plans to adopt using the modified retrospective approach. The Company does not expect the adoption of ASU 2014-09 to have a material impact on its consolidated results of operations, financial positions and cash flows, but expects the adoption of this standard will increase the amount of required disclosures provided by the Company. Leases In February 2016, the FASB issued ASU No. 2016-02, Leases. The updated accounting guidance requires lessees to recognize all leases on their balance sheet as a right-of-use asset and a lease liability with the exception of short-term leases. For income statement purposes, the criteria for recognition, measurement and presentation of expense is largely similar to previous guidance, but without the requirement to use bright-line tests in the determination of lease classification. The updated accounting guidance for a lessor is largely unchanged from previous guidance but has been updated to align with certain changes to the lessee model and the new revenue recognition standard. The updated accounting guidance is effective for the Company as of October 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is currently evaluating the impact the updated accounting guidance will have on its consolidated financial statements. Intra-Entity Transfers of Assets Other Than Inventory In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. This guidance requires that an entity recognizes the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The guidance is effective for the Company as of October 1, 2018 and early adoption is permitted. The Company does not currently expect the adoption of ASU 2016-16 to have a material impact on its consolidated financial statements. Income Taxes In February 2018, the FASB issued ASU No. 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This guidance provides the option to reclassify the stranded tax effects caused by the newly enacted US Tax Cuts and Jobs Act (“Tax Act”) from accumulated other comprehensive income to retained earnings. The Company early adopted this guidance as of December 31, 2017, which impacted the Company’s consolidated statements of changes in stockholders’ equity only.

2.Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, which was further updated in March and April 2016. The updated accounting guidance clarifies the principles for recognizing revenue and provides a single, contract-based revenue recognition model in order to create greater comparability for financial statement users across industries and jurisdictions. The core principle of the revenue model is that an entity recognizes revenue to depict the transfer of promised goods or services to clients in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The updated accounting guidance is effective for the Company as of October 1, 2018 and may be adopted using either a full retrospective or modified retrospective approach. The Company has completed its comprehensive contract review project and has developed an understanding of the potential adoption impact to the consolidated financial statements on a qualitative basis. The Company is in the process of finalizing its accounting policies, drafting the new disclosures, quantifying the potential financial adjustment and completing its evaluation of the impact of the accounting and disclosure requirements on its business processes, controls and systems. The Company has also made progress on evaluating the impact the ASU may have related to the timing and presentation of various financial aspects of its contractual arrangements, including performance obligations, application of the series guidance, costs to fulfill and commissions. The Company plans to adopt using the modified retrospective approach. The Company does not expect the adoption of ASU 2014-09 to have a material impact on its consolidated results of operations, financial positions and cash flows, but expects the adoption of this standard will increase the amount of required disclosures provided by the Company.

Leases

In February 2016, the FASB issued ASU No. 2016-02, Leases. The updated accounting guidance requires lessees to recognize all leases on their balance sheet as a right-of-use asset and a lease liability with the exception of short-term leases. For income statement purposes, the criteria for recognition, measurement and presentation of expense is largely similar to previous guidance, but without the requirement to use bright-line tests in the determination of lease classification. The updated accounting guidance for a lessor is largely unchanged from previous guidance but has been updated to align with certain changes to the lessee model and the new revenue recognition standard. The updated accounting guidance is effective for the Company as of October 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is currently evaluating the impact the updated accounting guidance will have on its consolidated financial statements.

Intra-Entity Transfers of Assets Other Than Inventory

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. This guidance requires that an entity recognizes the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The guidance is effective for the Company as of October 1, 2018 and early adoption is permitted. The Company does not currently expect the adoption of ASU 2016-16 to have a material impact on its consolidated financial statements.

Income Taxes

In February 2018, the FASB issued ASU No. 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This guidance provides the option to reclassify the stranded tax effects caused by the newly enacted US Tax Cuts and Jobs Act (“Tax Act”) from accumulated other comprehensive income to retained earnings. The Company early adopted this guidance as of December 31, 2017, which impacted the Company’s consolidated statements of changes in stockholders’ equity only.