Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net sales	$ 544,845	$ 422,627	$ 324,140
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	380,108	263,224	186,926
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	164,737	159,403	137,214
Intra - Segment Sales [Member] | Industrial Process Solutions Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(785)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		443,574	350,266
Operating Segments [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	412,929	278,354	197,380
Operating Segments [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	183,011	165,220	152,886
Operating Segments [Member] | Intra - Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(48,891)	(19,624)	(24,016)
Operating Segments [Member] | Intra - Segment Sales [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(31,402)	(14,088)	(9,483)
Operating Segments [Member] | Intra - Segment Sales [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(17,489)	(5,536)	(14,533)
Operating Segments [Member] | Reportable Subsegments [Member]
Segment Reporting Information [Line Items]
Net sales	595,940
Inter-segment Elimination [Member]
Segment Reporting Information [Line Items]
Net sales	(1,419)
Inter-segment Elimination [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		(1,042)	(971)
Inter-segment Elimination [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(785)	(281)	(1,139)
Inter-segment Elimination [Member] | Engineered Systems Segment [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		(1,042)	(971)
Inter-segment Elimination [Member] | Industrial Process Solutions Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		$ (281)	$ (1,139)
Inter-segment Elimination [Member] | Intra - Segment Sales [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	$ (1,419)