Business Segment Information - Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Property and equipment additions		$ 4,123	$ 2,162	$ 7,233	$ 3,919
Depreciation and amortization		3,461	2,765	6,973	5,650
Identifiable assets		598,133		598,133		$ 600,291
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions		890	444	2,027	688
Depreciation and amortization		1,814	1,274	3,599	2,486
Identifiable assets		427,732		427,732		432,098
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions		429	312	1,035	1,711
Depreciation and amortization		1,131	949	2,250	2,107
Identifiable assets		144,132		144,132		147,740
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Property and equipment additions		2,804	1,406	4,171	1,520
Depreciation and amortization		516	$ 542	1,124	$ 1,057
Identifiable assets	[1]	$ 26,269		$ 26,269		$ 20,453

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