Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 112,563	$ 92,436
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	74,454	56,975
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	38,109	35,461
Intra-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(2,373)	(6,183)
Intra-Segment Sales [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(1,538)	(4,558)
Intra-Segment Sales [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(835)	(1,625)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	115,131	98,742
Operating Segments [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	76,089	61,600
Operating Segments [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	39,042	37,142
Inter-Segment Elimination [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(97)	(67)
Inter-Segment Elimination [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(98)	(56)
Inter-Segment Elimination [Member] | Engineered Systems Segment [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(97)	(67)
Inter-Segment Elimination [Member] | Industrial Process Solutions Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ (98)	$ (56)