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Product Warranties (Narrative) (Details)	6 Months Ended
	Mar. 31, 2018
Minimum
Product Warranties
Warranty period - months	twelve
Maximum
Product Warranties
Warranty period - months	sixty

X

- Definition

Product Warranties [Line Items]

+ References

No definition available.

+ Details

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X

- Definition

Describes the nature of the product warranty, including the approximate term of the product warranty, how the product warranty arose, and the events or circumstances that would require the warrantor to perform under the product warranty.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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