Operations and Summary of Significant Accounting Policies (Schedule of Finite-Lived Intangible Assets Useful Lives) (Details)	12 Months Ended
	Sep. 30, 2020
Customer Relationships And Contracts [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years
Customer Relationships And Contracts [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	30 years
Intellectual Property [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Intellectual Property [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	17 years
Process Technology [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Process Technology [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	30 years
Other Intangible Assets [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Other Intangible Assets [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years