Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following summarizes the carrying value of goodwill by segment at June 30, 2023, which was unchanged from September 30, 2022:

	Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Goodwill at June 30, 2023	$	2,816	$	51,370	$	38,209	$	—	$	92,395

Schedule of Finite-Lived Intangible Assets [Table Text Block]

Intangible assets consist of the following:

	Estimated Useful Lives (in Years)			June 30, 2023
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	14,621	$	(5,417)		$	9,204
Technical library	20				400		(196)			204
Customer relationships	6	-	15		91,426		(40,368)			51,058
Non-competition arrangements	5				40		(39)			1
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	111,445	$	(50,978)		$	60,467

	Estimated Useful Lives (in Years)			September 30, 2022
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	15,262	$	(4,589)		$	10,673
Technical library	20				400		(181)			219
Customer relationships	6	-	15		96,699		(35,662)			61,037
Non-competition arrangements	5				40		(33)			7
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	117,359	$	(45,423)		$	71,936