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Significant Accounting Policies And Practices (Schedule Of Range And Weighted Average Useful Lives For Definite-Lived Intangible Assets) (Details)	12 Months Ended
	Sep. 30, 2018
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average	17 years 10 months 24 days
Technology Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average	11 years 4 months 24 days
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average	6 years 2 months 12 days
Minimum [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Range	2 years
Minimum [Member] | Technology Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Range	6 years
Minimum [Member] | Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Range	5 years
Maximum [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Range	20 years
Maximum [Member] | Technology Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Range	18 years
Maximum [Member] | Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Range	13 years

X

- Definition

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+ References

No definition available.

+ Details

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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