Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table summarizes the Company’s net sales by major product and service category for the periods presented:

	Three Months Ended March 31,
	2022		2021
Rail Products and Global Friction Management	$	51,651	$	55,309
Technology Services and Solutions	12,059		10,923
Rail, Technologies, and Services	63,710		66,232
Precast Concrete Buildings	9,970		10,283
Other Precast Concrete Products	5,040		2,395
Precast Concrete Products	15,010		12,678
Fabricated Steel Products	12,604		27,721
Coatings and Measurement	7,470		9,449
Steel Products and Measurement	20,074		37,170
Total net sales	$	98,794	$	116,080

Net sales by the timing of the transfer of products and performance of services was as follows for the periods presented:

	Three Months Ended March 31, 2022
	Rail, Technologies, and Services		Precast Concrete Products		Steel Products and Measurement		Total
Point in time	$	49,166	$	4,263	$	15,062	$	68,491
Over time	14,544		10,747		5,012		30,303
Total net sales	$	63,710	$	15,010	$	20,074	$	98,794
	Three Months Ended March 31, 2021
	Rail, Technologies, and Services		Precast Concrete Products		Steel Products and Measurement		Total
Point in time	$	52,044	$	4,736	$	29,928	$	86,708
Over time	14,188		7,942		7,242		29,372
Total net sales	$	66,232	$	12,678	$	37,170	$	116,080