Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 135,513	$ 149,390	$ 399,367	$ 391,134
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	91,277	105,540	278,018	267,516
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	44,236	43,850	121,349	123,618
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	149,906	163,869	428,817	419,521
Operating Segments [Member] | Intra-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(13,870)	(13,870)	(28,480)	(27,044)
Operating Segments [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	98,527	114,605	293,186	286,575
Operating Segments [Member] | Engineered Systems Segment [Member] | Intra-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(6,952)	(8,639)	(14,587)	(18,173)
Operating Segments [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	51,379	49,264	135,631	132,946
Operating Segments [Member] | Industrial Process Solutions Segment [Member] | Intra-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(6,918)	(5,231)	(13,893)	(8,871)
Inter-Segment Elimination [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(225)	(183)	(389)	(457)
Inter-Segment Elimination [Member] | Engineered Systems Segment [Member] | Intra-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(298)	(426)	(581)	(886)
Inter-Segment Elimination [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(298)	(426)	(581)	(886)
Inter-Segment Elimination [Member] | Industrial Process Solutions Segment [Member] | Intra-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ (225)	$ (183)	$ (389)	$ (457)