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Operating Segments (Tables)

12 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

						Year Ended September 30, 2025
						Communications						Residential						Infrastructure Solutions						Commercial & Industrial						Corporate						Total
Revenues						$	1,140,640					$	1,304,369					$	498,724					$	427,735					$	—					$	3,371,468
Cost of services						876,037						967,920						327,202						340,812						—						2,511,971
Gross profit						264,603						336,449						171,522						86,923						—						859,497
Selling, general and administrative						98,187						232,789						51,813						39,695						52,494						474,978
Contingent consideration						—						—						1,145						—						—						1,145
Loss (gain) on sale of assets						(89)						(132)						97						(31)						—						(155)
Income (loss) from operations						$	166,505					$	103,792					$	118,467					$	47,259					$	(52,494)					$	383,529
Other data:
			Depreciation and amortization expense			$	5,481					$	23,320					$	14,420					$	2,792					$	928					$	46,941
			Capital expenditures			$	27,899					$	11,351					$	12,046					$	11,300					$	4,657					$	67,253
			Total assets			$	439,919					$	356,539					$	355,087					$	113,123					$	330,993					$	1,595,661

						Year Ended September 30, 2024
						Communications						Residential						Infrastructure Solutions						Commercial & Industrial						Corporate						Total
Revenues						$	776,474					$	1,388,840					$	351,096					$	367,948					$	—					$	2,884,358
Cost of services						623,844						1,024,440						245,743						293,741						—						2,187,768
Gross profit						152,630						364,400						105,353						74,207						—						696,590
Selling, general and administrative						65,752						228,371						37,394						32,925						32,242						396,684
Contingent consideration						—						36						678						—						—						714
Gain on sale of assets						(18)						(1,354)						(184)						(114)						(14)						(1,684)
Income (loss) from operations						$	86,896					$	137,347					$	67,465					$	41,396					$	(32,228)					$	300,876
Other data:
			Depreciation and amortization expense			$	3,627					$	20,752					$	9,783					$	2,028					$	913					$	37,103
			Capital expenditures			$	13,493					$	15,620					$	8,916					$	5,205					$	1,925					$	45,159
			Total assets			$	285,478					$	395,682					$	288,765					$	89,023					$	185,078					$	1,244,026

						Year Ended September 30, 2023
						Communications						Residential						Infrastructure Solutions						Commercial & Industrial						Corporate						Total
Revenues						$	600,776					$	1,279,504					$	217,353					$	279,594					$	—					$	2,377,227
Cost of services						494,964						1,026,524						162,905						248,295						—						1,932,688
Gross profit						105,812						252,980						54,448						31,299						—						444,539
Selling, general and administrative						54,344						169,737						26,260						25,225						23,059						298,625
Contingent consideration						—						277						—						—						—						277
Loss (gain) on sale of assets						12						69						(1,029)						(13,198)						7						(14,139)
Income (loss) from operations						$	51,456					$	82,897					$	29,217					$	19,272					$	(23,066)					$	159,776
Other data:
			Depreciation and amortization expense			$	2,215					$	19,281					$	5,198					$	1,640					$	1,073					$	29,407
			Capital expenditures			$	2,203					$	9,114					$	2,767					$	2,525					$	1,058					$	17,667
			Total assets			$	205,924					$	386,829					$	180,871					$	87,677					$	120,299					$	981,600

X

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-25

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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X

- References

No definition available.

+ Details

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