Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following summarizes the carrying value of goodwill by segment at March 31, 2023, which was unchanged from September 30, 2022:

	Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Goodwill at March 31, 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)			March 31, 2023
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	14,621	$	(5,014)		$	9,607
Technical library	20				400		(191)			209
Customer relationships	6	-	15		91,426		(37,653)			53,773
Non-competition arrangements	5				40		(37)			3
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	111,445	$	(47,853)		$	63,592

	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