REVENUE (Tables)

6 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Summary of Contract Asset and Liabilities

Contract assets and liabilities as of March 31, 2019 and September 30, 2018 are summarized below (in thousands):

	March 31, 2019			September 30, 2018
Contract assets	$	70,727		$	82,545
Contract liabilities	(51,088		)	(43,174		)
Net contract assets	$	19,639		$	39,371

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, 2019 (in thousands):

	Three months ended March 31, 2019		Six months ended March 31, 2019
United States	$	102,406	$	192,304
Canada	15,094		24,809
Europe, Middle East and Africa	5,508		10,949
Asia/Pacific	729		4,473
Mexico, Central and South America	—		553
Total revenues by geographic destination	$	123,737	$	233,088

	Three months ended March 31, 2019		Six months ended March 31, 2019
Oil and gas	$	56,022	$	105,598
Petrochemical	22,523		42,301
Electric utility	20,383		39,641
Traction power	6,025		11,034
All others	18,784		34,514
Total revenues by market sector	$	123,737	$	233,088