Business Segment Information - Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Property and equipment additions		$ 3,116	$ 2,513
Depreciation and amortization		3,512	2,885
Identifiable assets		589,020		$ 600,291
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions		1,137	244
Depreciation and amortization		1,785	1,212
Identifiable assets		430,890		432,098
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions		606	1,399
Depreciation and amortization		1,119	1,158
Identifiable assets		143,819		147,740
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Property and equipment additions		1,373	870
Depreciation and amortization		608	$ 515
Identifiable assets	[1]	$ 14,311		$ 20,453

[1] Corporate and Other assets consist primarily of cash and income tax related assets.