Revenue - Net Sales (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Net sales	$ 422,340	$ 390,189
Forged and Cast Mill Rolls [Member]
Disaggregation Of Revenue [Line Items]
Net sales	285,577	256,559
Forged Engineered Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	18,184	42,925
Forged And Cast Engineered Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	303,761	299,484
Heat Exchange Coils [Member]
Disaggregation Of Revenue [Line Items]
Net sales	45,258	31,395
Air Handling Systems [Member]
Disaggregation Of Revenue [Line Items]
Net sales	38,526	29,436
Centrifugal Pumps [Member]
Disaggregation Of Revenue [Line Items]
Net sales	34,795	29,874
Air and Liquid Processing [Member]
Disaggregation Of Revenue [Line Items]
Net sales	118,579	90,705
U.S. [Member]
Disaggregation Of Revenue [Line Items]
Net sales	243,243	204,952
Foreign [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 179,097	$ 185,237