Use of Estimates

9 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period, including estimates and assumptions related to reserves for bad debt, reserves for inventory obsolescence, the impairment assessment of intangible assets, the calculation of estimated selling price and post-delivery support obligations used for revenue recognition, the calculation of liabilities related to deferred compensation and retirement plans and the calculation of income tax liabilities. Actual results may differ from those estimates under different assumptions or conditions.