Revenue (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

For the years ended December 31, 2022 and 2021, revenue recognized over time was as follows:

	Year Ended December 31,				Percentage of Total Net Sales Year Ended December 31,
	2022		2021		2022		2021
Over time input method	$	67,116	$	100,787	13.5	%	19.6	%
Over time output method	68,794		52,844		13.8		10.3
Total over time sales	$	135,910	$	153,631	27.3	%	29.9	%

For the years ended December 31, 2022 and 2021, net sales by the timing of the transfer of goods and services were as follows:

Year Ended December 31, 2022	Rail, Technologies, and Services		Precast Concrete Products		Steel Products and Measurement		Total
Point in time	$	241,759	$	43,069	$	76,759	$	361,587
Over time	58,833		61,143		15,934		135,910
Total net sales	$	300,592	$	104,212	$	92,693	$	497,497
Year Ended December 31, 2021	Rail, Technologies, and Services		Precast Concrete Products		Steel Products and Measurement		Total
Point in time	$	232,880	$	21,351	$	105,758	$	359,989
Over time	66,869		49,639		37,123		153,631
Total net sales	$	299,749	$	70,990	$	142,881	$	513,620