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Goodwill and Intangible Assets Goodwill (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2019 USD ($)
Goodwill [Line Items]
Goodwill	$ 50,702
Goodwill, Written off Related to Sale of Business Unit	(119)
Goodwill, Purchase Accounting Adjustments	39
Goodwill	50,622
Commercial and Industrial [Member]
Goodwill [Line Items]
Goodwill	6,976
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill, Purchase Accounting Adjustments	0
Goodwill	6,976
Residential [Member]
Goodwill [Line Items]
Goodwill	9,979
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill, Purchase Accounting Adjustments	39
Goodwill	10,018
Infrastructure Solutions [Member]
Goodwill [Line Items]
Goodwill	30,931
Goodwill, Written off Related to Sale of Business Unit	(119)
Goodwill, Purchase Accounting Adjustments	0
Goodwill	30,812
Communications [Member]
Goodwill [Line Items]
Goodwill	2,816
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill, Purchase Accounting Adjustments	0
Goodwill	$ 2,816

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
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+ References

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 16
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+ References

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