Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2024

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, 2024, which did not change from September 30, 2023:

	Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Goodwill at March 31, 2024	$	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, 2024
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	13,071	$	(6,174)		$	6,897
Technical library	20				400		(211)			189
Customer relationships	6	-	15		91,426		(48,437)			42,989
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				3,268		(3,268)			—
Total intangible assets					$	108,205	$	(58,130)		$	50,075

	Estimated Useful Lives (in Years)			September 30, 2023
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	14,621	$	(6,973)		$	7,648
Technical library	20				400		(201)			199
Customer relationships	6	-	15		91,426		(43,065)			48,361
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	111,445	$	(55,237)		$	56,208