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Summary Of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Schedule Of Basic And Diluted Weighted-Average Shares Outstanding | Basic and diluted weighted-average shares outstanding are as follows:
|  | 2017 |  | 2016 |  | 2015
Basic weighted-average shares outstanding |  | 35,852,448 |  |  | 36,277,445 |  |  | 38,945,880 |
Dilutive effect of equity-based awards |  | 377,595 |  |  | 251,899 |  |  | 388,640 |
Diluted weighted-average shares outstanding |  | 36,230,043 |  |  | 36,529,344 |  |  | 39,334,520 |
Schedule Of Activity In The Warranty Accrual | Activity in the warranty accrual is summarized as follows:
|  | 2017 |  | 2016 |  | 2015
Warranty accrual at beginning of year |  | $ | 21,363 |  |  | $ | 18,660 |  |  | $ | 19,953 |
Additions from acquisitions |  | 448 |  |  | — |  |  | — |
Warranties issued during current year |  | 17,021 |  |  | 13,272 |  |  | 9,666 |
Adjustments to pre-existing warranties |  | (509 | ) |  | (1,463 | ) |  | (2,416 | )
Reductions for settling warranties |  | (12,747 | ) |  | (8,486 | ) |  | (7,448 | )
Foreign currency translation |  | 272 |  |  | (620 | ) |  | (1,095 | )
Warranty accrual at end of year |  | $ | 25,848 |  |  | $ | 21,363 |  |  | $ | 18,660 |
Schedule of New Accounting Pronouncements | Recent Accounting Pronouncements Adopted
Standard |  | Description |  | Financial Statement Effect or Other Significant Matters
ASU no. 2015-03 Presentation of Debt Issuance Costs (And All Related ASUs) |  | This standard requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The provisions of this standard and all subsequently issued guidance are effective for fiscal years beginning after December 15, 2015 and interim periods within those fiscal years. Early adoption is permitted and retrospective application is required. |  | We adopted this standard on a retrospective basis, resulting in the reclassification of $5,457 of debt issuance costs as of October 1, 2016 previously reported as Other Assets in our balance sheet to Long Term Debt, excluding current installments.
Date adopted: Q1 2017
ASU no. 2015-07 Disclosures for Investments in Certain Entities that Calculate Net Asset Value per Share |  | This standard eliminates the requirement to classify investments valued using the net asset value per share practical expedient and instead requires these investments to be disclosed separately. The provisions of this standard are effective for fiscal years beginning after December 15, 2015 and all interim periods within those fiscal years. Early adoption is permitted and retrospective application is required. |  | We adopted this standard on a retrospective basis, resulting in the reclassification of $302,713 of investments measured at fair value using the net asset value per share approach and previously reported in the fair value hierarchy as of October 1, 2016 to be reported separately from the fair value hierarchy.
Date adopted: Q1 2017
ASU no. 2015-17 Balance Sheet Classification of Deferred Taxes |  | The standard amends existing guidance to require presentation of deferred tax assets and liabilities as noncurrent within the balance sheet. The provisions of the standard are effective for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years. Early adoption is permitted and may be applied either prospectively or retrospectively. |  | We adopted this standard on a retrospective basis, resulting in the reclassification of a net $92,620 of previously reported current deferred income tax assets and liabilities as of October 1, 2016 to the appropriate long term deferred income tax classification based upon the net tax position within each of our relevant taxing jurisdictions.
Date early adopted: Q1 2017
ASU no. 2016-09 Improvements to Employee Share-Based Payment Accounting |  | This standard simplifies several aspects of the accounting for share-based payment transactions, including income tax consequences, statement of cash flows classifications, share repurchases relating to tax withholdings and forfeiture accounting. The provisions of this standard are effective for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years. |  | We adopted this standard on a prospective basis and as a result prior periods have not been adjusted. Going forward, recognized excess tax benefits previously reported as part of additional paid-in capital in our balance sheet will be included as part of income tax expense in our income statement. Additionally, cash flow relating to these excess tax benefits previously reported as a financing activity will be included as an operating activity.
Date early adopted: Q1 2017
ASU no. 2016-18 Statement of Cash Flows Restricted Cash |  | This standard amends existing guidance to require that the Statement of Cash Flows explain the change during the period in cash, cash equivalents and restricted cash. Amounts described as restricted cash are now included, along with cash and cash equivalents, when reconciling beginning-of-period and end-of-period amounts shown on the Statement of Cash Flows. The provisions of the standard are effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted, but requires retrospective application in the fiscal year adopted. |  | We adopted this standard on a retrospective basis, resulting in restricted cash of $37,366 as of April 1, 2017 being included, along with cash and cash equivalents, when reconciling beginning-of-period and end-of-period amounts shown on the Statement of Cash Flows. There were no changes required to prior periods. Restricted cash as of September 30, 2017 was not material.
Date early adopted: Q2 2017
Recent Accounting Pronouncements Not Yet Adopted
Standard |  | Description |  | Financial Statement Effect or Other Significant Matters
ASU no. 2014-09 Revenue from Contracts with Customers (And All Related ASUs) |  | The standard requires revenue recognition to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and assets recognized from costs incurred to obtain or fulfill a contract. The provisions of the standard, as well as all subsequently issued clarifications to the standard, are effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The standard can be adopted using either a full retrospective or modified retrospective approach. |  | We expect to adopt the standard using the modified retrospective method, under which prior years' results are not restated, but supplemental information will be provided in our disclosures that will present fiscal 2019 results before adoption of the standard. In addition, a cumulative adjustment may be necessary to Shareholder's Equity at the beginning of fiscal 2019. We are assessing the impact of the standard on our financial statements and related disclosures, internal controls and financial policies and information technology systems. We have not yet quantified the impact on our financial statements and related disclosures.
Planned date of adoption: Q1 2019
ASU no. 2016-01 Recognition and Measurement of Financial Assets and Financial Liabilities |  | The standard requires most equity investments to be measured at fair value, with subsequent changes in fair value recognized in net income. The amendment also impacts the measurement of financial liabilities under the fair value option as well as certain presentation and disclosure requirements for financial instruments. The provisions of the standard are effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted for some, but not all, provisions. The amendment requires certain provisions to be applied prospectively and others to be applied by means of a cumulative-effect adjustment. |  | We are currently evaluating the effect on our financial statements and related disclosures.
Planned date of adoption: Q1 2019
ASU no. 2016-02 Leases (And All Related ASUs) |  | The standard requires most lease arrangements to be recognized in the balance sheet as lease assets and lease liabilities. The standard also requires additional disclosures about the leasing arrangements. The provisions of the standard are effective for fiscal years beginning after December 15, 2018 and interim periods within those years. Early adoption is permitted. |  | We are currently evaluating the effect on our financial statements and related disclosures.
Planned date of adoption: Q1 2020
ASU no. 2017-07 Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost |  | The standard amends existing guidance on the presentation of net periodic benefit cost in the income statement and what qualifies for capitalization on the balance sheet. The provisions of the standard are effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted as of the beginning of an annual period. The amendment requires income statement presentation provisions to be applied retrospectively and capitalization in assets provisions to be applied prospectively. |  | We are currently evaluating the effect on our financial statements and related disclosures.
Planned date of adoption: Q1 2019
ASU no. 2017-12 Targeted Improvements to Accounting for Hedging Activities |  | The standard expands the hedging strategies eligible for hedge accounting, while simplifying presentation and disclosure by eliminating separate measurement and reporting of hedge ineffectiveness. The provisions of the standard are effective for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted. |  | We are currently evaluating the effect on our financial statements and related disclosures.
Planned date of adoption: Q1 2020

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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