REVENUE (Tables)

9 Months Ended

Sep. 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 September 30, 2023						Three Months Ended September 30, 2022
	(unaudited)						(unaudited)
	United States and Canada		Other Countries		Total		United States and Canada		Other Countries		Total
Revenue:
IHT	$	100,800	$	3,057	$	103,857	$	108,009	$	2,303	$	110,312
MS	67,286		35,572		102,858		76,135		31,892		108,027
Total	$	168,086	$	38,629	$	206,715	$	184,144	$	34,195	$	218,339


	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	(unaudited)						(unaudited)
	United States and Canada		Other Countries		Total		United States and Canada		Other Countries		Total
Revenue:
IHT	$	312,344	$	10,082	$	322,426	$	312,928	$	7,105	$	320,033
MS	221,943		104,115		326,058		217,749		91,135		308,884
Total	$	534,287	$	114,197	$	648,484	$	530,677	$	98,240	$	628,917

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


	Three Months Ended September 30, 2023
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	83,207	$	39	$	12,946	$	7,665	$	103,857
MS	—		101,624		55		1,179		102,858
Total	$	83,207	$	101,663	$	13,001	$	8,844	$	206,715


	Three Months Ended September 30, 2022
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	87,267	$	19	$	16,357	$	6,669	$	110,312
MS	—		106,776		125		1,126		108,027
Total	$	87,267	$	106,795	$	16,482	$	7,795	$	218,339


	Nine Months Ended September 30, 2023
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	259,118	$	261	$	42,391	$	20,656	$	322,426
MS	—		323,484		544		2,030		326,058
Total	$	259,118	$	323,745	$	42,935	$	22,686	$	648,484



	Nine Months Ended September 30, 2022
	(unaudited)
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	255,419	$	158	$	45,983	$	18,473	$	320,033
MS	—		305,277		238		3,369		308,884
Total	$	255,419	$	305,435	$	46,221	$	21,842	$	628,917