Revenue (Tables)

12 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Contract Assets and Liabilities

Contract assets and liabilities as of September 30, 2023 and September 30, 2022 are summarized below (in thousands):

	September 30,
	2023		2022
Contract assets	$	60,621	$	88,351
Contract liabilities	(279,796)		(79,857)
Net contract asset (liability)	$	(219,175)	$	8,494

Disaggregation of Revenue

The following tables present our disaggregated revenue by geographic destination and market sector for the years ended September 30, 2023, 2022 and 2021 (in thousands):

	2023		2022		2021
United States	$	557,934	$	404,973	$	351,422
Canada	84,090		81,218		68,655
Middle East and Africa	14,998		20,712		26,615
Asia/Pacific	6,188		4,885		8,889
Europe	26,699		17,699		13,027
Mexico, Central and South America	9,399		3,095		1,951
Total revenues by geographic destination	$	699,308	$	532,582	$	470,559

	2023		2022		2021
Oil and gas (excludes petrochemical)	$	273,117	$	215,235	$	187,660
Petrochemical	94,188		66,538		58,986
Electric utility	158,400		122,361		111,244
Traction power	28,112		44,930		59,106
Commercial and other industrial	103,966		56,448		27,065
All others	41,525		27,070		26,498
Total revenues by market sector	$	699,308	$	532,582	$	470,559