REVENUE (Tables)

12 Months Ended

Dec. 31, 2024

Revenue from Contract with Customer [Abstract]

Summary of 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:

Geographic area (in thousands):

			Twelve Months Ended December 31, 2024
	United States		Canada		Other Countries		Total
Revenue:
IHT	$	374,657	$	39,699	$	12,366	$	426,722
MS	263,005		27,241		135,304		425,550
Total	$	637,662	$	66,940	$	147,670	$	852,272

			Twelve Months Ended December 31, 2023
	United States		Canada		Other Countries		Total
Revenue:
IHT	$	364,550	$	49,965	$	15,044	$	429,559
MS	259,213		34,905		138,938		433,056
Total	$	623,763	$	84,870	$	153,982	$	862,615

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

	Twelve Months Ended December 31, 2024
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	336,582	$	154	$	67,893	$	22,093	$	426,722
MS	—		417,699		932		6,919		425,550
Total	$	336,582	$	417,853	$	68,825	$	29,012	$	852,272

	Twelve Months Ended December 31, 2023
	Non-Destructive Evaluation and Testing Services		Repair and Maintenance Services		Heat Treating		Other		Total
Revenue:
IHT	$	343,713	$	275	$	59,399	$	26,172	$	429,559
MS	—		429,480		702		2,874		433,056
Total	$	343,713	$	429,755	$	60,101	$	29,046	$	862,615