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Revenue (Tables)

12 Months Ended

Sep. 30, 2024

Revenue from Contract with Customer [Abstract]

Schedule of Contract Assets and Liabilities

Contract assets and liabilities as of September 30, 2024 and September 30, 2023 are summarized below (in thousands):

			September 30,
			2024						2023
Contract assets			$	102,827					$	60,621
Contract liabilities			(287,763)						(279,796)
Net contract liability			$	(184,936)					$	(219,175)

Schedule of Disaggregation of Revenue

The following tables present our disaggregated revenue by geographic destination and market sector for the years ended September 30, 2024, 2023 and 2022 (in thousands):

			2024						2023						2022
United States			$	846,526					$	557,934					$	404,973
Canada			106,521						84,090						81,218
Europe			31,388						26,699						17,699
Middle East and Africa			13,440						14,998						20,712
Mexico, Central and South America			7,631						9,399						3,095
Asia/Pacific			6,850						6,188						4,885
Total revenues by geographic destination			$	1,012,356					$	699,308					$	532,582

			2024						2023						2022
Oil and gas (excludes petrochemical)			$	417,170					$	273,117					$	215,235
Petrochemical			185,606						94,188						66,538
Electric utility			186,547						158,400						122,361
Commercial and other industrial			149,899						103,966						56,448
Light rail traction power			22,019						28,112						44,930
All others			51,115						41,525						27,070
Total revenues by market sector			$	1,012,356					$	699,308					$	532,582

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-10

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X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-5

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