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Product Warranties (Tables) | 9 Months Ended
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Jun. 30, 2018
Product Warranties Disclosures [Abstract] |
Summary of Activity in Warranty Accrual | Activity in the warranty accrual is summarized as follows:
|  | Three Months Ended |  | Nine Months Ended
|  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017
Warranty accrual at beginning of period |  | $ | 28,255 |  |  | $ | 23,272 |  |  | $ | 25,848 |  |  | $ | 21,363 |
Additions from acquisitions |  | — |  |  | 433 |  |  | — |  |  | 433 |
Warranties issued during current period |  | 3,451 |  |  | 4,030 |  |  | 11,488 |  |  | 12,185 |
Adjustments to pre-existing warranties |  | (80 | ) |  | (124 | ) |  | (325 | ) |  | (495 | )
Reductions for settling warranties |  | (3,219 | ) |  | (4,046 | ) |  | (9,141 | ) |  | (9,509 | )
Foreign currency translation |  | (701 | ) |  | 420 |  |  | (164 | ) |  | 8 |
Warranty accrual at end of period |  | $ | 27,706 |  |  | $ | 23,985 |  |  | $ | 27,706 |  |  | $ | 23,985 |

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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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