Revenue (Tables)

6 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Summary of Contract Asset and Liabilities

Contract assets and liabilities as of March 31, 2023 and September 30, 2022 are summarized below (in thousands):

	March 31, 2023		September 30, 2022
Contract assets	$	63,560	$	88,351
Contract liabilities	(178,217)		(79,857)
Net contract asset (liability)	$	(114,657)	$	8,494

Disaggregation of Revenue

The following tables present our disaggregated revenue by geographic destination and market sector for the three and six months ended March 31, 2023 and 2022 (in thousands):

	Three months ended March 31,				Six months ended March 31,
	2023		2022		2023		2022
United States	$	134,161	$	86,992	$	234,273	$	169,137
Canada	21,995		22,053		40,491		37,178
Europe, Middle East and Africa	11,957		15,551		18,516		23,381
Asia/Pacific	1,788		1,646		2,564		2,590
Mexico, Central and South America	1,543		1,612		2,458		2,137
Total revenues by geographic destination	$	171,444	$	127,854	$	298,302	$	234,423

	Three months ended March 31,				Six months ended March 31,
	2023		2022		2023		2022
Oil and gas (excludes petrochemical)	$	62,597	$	53,634	$	106,107	$	96,655
Petrochemical	25,887		18,853		48,377		36,081
Electric utility	42,668		30,374		71,075		51,907
Traction power	7,317		10,054		14,389		21,426
Commercial and other industrial	22,270		5,785		39,320		15,618
All others	10,705		9,154		19,034		12,736
Total revenues by market sector	$	171,444	$	127,854	$	298,302	$	234,423