Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 422,627	$ 324,140	$ 316,011
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	263,224	186,926	205,494
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	159,403	137,214	110,517
Intra - Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(19,624)	(24,016)	(24,131)
Intra - Segment Sales [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(14,088)	(9,483)	(11,333)
Intra - Segment Sales [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(5,536)	(14,533)	(12,798)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	443,574	350,266	342,837
Operating Segments [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	278,354	197,380	218,290
Operating Segments [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	165,220	152,886	124,547
Inter-segment Elimination [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(1,042)	(971)	(1,463)
Inter-segment Elimination [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(281)	(1,139)	(1,232)
Inter-segment Elimination [Member] | Engineered Systems Segment [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(1,042)	(971)	(1,463)
Inter-segment Elimination [Member] | Industrial Process Solutions Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ (281)	$ (1,139)	$ (1,232)