REVENUE (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

A disaggregation of our revenue from contracts with customers by geographic region, by reportable operating segment and by service type is presented below (in thousands):

Geographic area:

	Three Months Ended March 31, 2023
	(unaudited)
	United States and Canada		Other Countries		Total
Revenue:
IHT	$	98,531	$	3,298	$	101,829
MS	72,031		28,417		100,448
Total	$	170,562	$	31,715	$	202,277

	Three Months Ended March 31, 2022
	(unaudited)
	United States and Canada		Other Countries		Total
Revenue:
IHT	$	93,376	$	2,219	95,595
MS	63,931		29,510		93,441
Total	$	157,307	$	31,729	$	189,036

Operating segment and service type:

	Three Months Ended March 31, 2023
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	81,606	$	3	$	13,728	$	6,492	$	101,829
MS	—		99,838		278		332		100,448
Total	$	81,606	$	99,841	$	14,006	$	6,824	$	202,277

	Three Months Ended March 31, 2022
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	76,449	$	24	$	13,839	$	5,283	$	95,595
MS	—		91,770		57		1,614		93,441
Total	$	76,449	$	91,794	$	13,896	$	6,897	$	189,036

Contract with Customer, Asset and Liability

The following table provides information about trade accounts receivable, and contract assets as of March 31, 2023 and December 31, 2022 (in thousands):

	March 31, 2023		December 31, 2022		Change
	(unaudited)
Trade accounts receivable, net1	$	178,211	$	186,689	$	(8,478)
Contract assets2	$	2	$	2	$	—

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1    Includes billed and unbilled amounts, net of allowance for credit losses. See Note 4 - Receivables for details.    

2    Included in the “Prepaid expenses and other current assets” line on the condensed consolidated balance sheet.