REVENUE (Tables)

6 Months Ended

Jun. 30, 2023

Revenue from Contract with Customer [Abstract]

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 June 30, 2023						Three Months Ended June 30, 2022
	(unaudited)						(unaudited)
	United States and Canada		Other Countries		Total		United States and Canada		Other Countries		Total
Revenue:
IHT	$	113,013	$	3,727	$	116,740	$	111,541	$	2,583	$	114,124
MS	82,626		40,126		122,752		77,683		29,733		107,416
Total	$	195,639	$	43,853	$	239,492	$	189,224	$	32,316	$	221,540


	Six Months Ended June 30, 2023						Six Months Ended June 30, 2022
	(unaudited)						(unaudited)
	United States and Canada		Other Countries		Total		United States and Canada		Other Countries		Total
Revenue:
IHT	$	211,544	$	7,025	$	218,569	$	204,919	$	4,802	$	209,721
MS	154,657		68,543		223,200		141,614		59,243		200,857
Total	$	366,201	$	75,568	$	441,769	$	346,533	$	64,045	$	410,578

Revenue by Operating segment and service type (in thousands):


	Three Months Ended June 30, 2023
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	94,305	$	219	$	15,717	$	6,499	$	116,740
MS	—		122,022		211		519		122,752
Total	$	94,305	$	122,241	$	15,928	$	7,018	$	239,492


	Three Months Ended June 30, 2022
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	91,701	$	115	$	15,787	$	6,521	$	114,124
MS	—		106,731		56		629		107,416
Total	$	91,701	$	106,846	$	15,843	$	7,150	$	221,540


	Six Months Ended June 30, 2023
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	175,911	$	222	$	29,445	$	12,991	$	218,569
MS	—		221,860		489		851		223,200
Total	$	175,911	$	222,082	$	29,934	$	13,842	$	441,769



	Six Months Ended June 30, 2022
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	168,152	$	139	$	29,626	$	11,804	$	209,721
MS	—		198,501		113		2,243		200,857
Total	$	168,152	$	198,640	$	29,739	$	14,047	$	410,578