Revenue (Tables)

12 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Contract Assets and Liabilities

Contract assets and liabilities as of September 30, 2021 and September 30, 2020 are summarized below (in thousands):

	September 30,
	2021		2020
Contract assets	$	54,199	$	50,995
Contract liabilities	(42,433)		(79,445)
Net contract asset (liability)	$	11,766	$	(28,450)

Disaggregation of Revenue

The following tables present our disaggregated revenue by geographic destination and market sector for the years ended September 30, 2021 and September 30, 2020 (in thousands):

	2021		2020
United States	$	351,422	$	397,983
Canada	68,655		66,064
Europe, Middle East and Africa	39,642		34,028
Asia/Pacific	8,889		18,079
Mexico, Central and South America	1,951		2,345
Total revenues by geographic destination	$	470,559	$	518,499

	2021		2020
Oil and gas (excludes petrochemical)	$	187,660	$	195,209
Petrochemical	58,986		126,698
Electric utility	111,244		88,818
Traction power	59,106		42,373
All others	53,563		65,401
Total revenues by market sector	$	470,559	$	518,499