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Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

			Communications						Residential						Infrastructure Solutions						Commercial & Industrial						Total
Balance at September 30, 2023			2,816						51,370						38,209						—						92,395
Acquisitions (Note 19)			—						—						1,565						—						1,565
Balance at September 30, 2024			$	2,816					$	51,370					$	39,774					$	—					$	93,960

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

															September 30, 2023
			Estimated Useful Lives (in Years)												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															$	111,445					$	(55,237)					$	56,208

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Year Ending September 30,
2025			$	13,284
2026			11,942
2027			8,466
2028			5,491
2029			2,823
Thereafter			3,884
Total			$	45,890

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