Business Segment Information - Net Sales and Income from Operation by Business Segment (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
Income from operations		7,187	7,853	24,129	21,917
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales		91,277	105,540	278,018	267,516
Income from operations		15,837	15,759	51,444	39,601
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales		44,236	43,850	121,349	123,618
Income from operations		8,065	5,586	20,834	15,769
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Income from operations	[1]	$ (16,715)	$ (13,492)	$ (48,149)	$ (33,453)

[1] Includes corporate compensation, professional services, information technology, and other general and administrative corporate expenses.