Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025		Mar. 31, 2024
Segment Reporting Information [Line Items]
Net sales	$ 176,697		$ 126,332
Total consolidated sales	176,697		126,332
Stock-based compensation	3,356		1,670
Income before income taxes	55,059		2,760
Operating Segments [Member]
Segment Reporting Information [Line Items]
Elimination of intra- and inter-segment sales	7,300
Direct cost of sales	108,705		77,319
Shop burden	5,827		3,880
Selling expense	11,562		8,439
Project engineering expense	7,603		3,879
General and administrative expense	13,308		7,058
Gain on sale of Global Pump Solutions business	(64,502)
Other segment items	5,803	[1]	2,304	[2]
Income from operations	95,691		29,218
Stock-based compensation	3,356		1,670
Other corporate expenses	23,165	[3]	14,097	[4]
Elimination of intra- and inter-segment activity	7,300		5,765
Interest expense	6,217		3,413
Other loss	594	[5]	1,513	[6]
Income before income taxes	55,059		2,760
Operating Segments [Member] | Industrial Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	176,697		126,332
Total consolidated sales	176,697		126,332
Operating Segments [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	124,827		92,518
Total consolidated sales	124,827		92,518
Direct cost of sales	73,066		57,095
Shop burden	2,932		1,576
Selling expense	7,832		5,540
Project engineering expense	4,730		2,322
General and administrative expense	9,040		4,821
Gain on sale of Global Pump Solutions business	0
Other segment items	4,093	[1]	1,643	[2]
Income from operations	23,134		19,521
Operating Segments [Member] | Engineered Systems Segment [Member] | Industrial Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	120,434		89,349
Total consolidated sales	120,434		89,349
Operating Segments [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	59,170		39,579
Total consolidated sales	59,170		39,579
Direct cost of sales	35,639		20,224
Shop burden	2,895		2,304
Selling expense	3,730		2,899
Project engineering expense	2,873		1,557
General and administrative expense	4,268		2,237
Gain on sale of Global Pump Solutions business	(64,502)
Other segment items	1,710	[1]	661	[2]
Income from operations	72,557		9,697
Operating Segments [Member] | Industrial Process Solutions Segment [Member] | Industrial Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	56,263		36,983
Total consolidated sales	56,263		36,983
Operating Segments [Member] | Inter sub segment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	97		148
Elimination of intra- and inter-segment sales			5,765
Total consolidated sales	97		148
Operating Segments [Member] | Inter sub segment Eliminations [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	97		87
Total consolidated sales	97		87
Operating Segments [Member] | Inter sub segment Eliminations [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	0		61
Total consolidated sales	0		61
Operating Segments [Member] | Intra Sub Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	7,203		5,617
Total consolidated sales	7,203		5,617
Operating Segments [Member] | Intra Sub Segment Eliminations [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	4,296		3,082
Total consolidated sales	4,296		3,082
Operating Segments [Member] | Intra Sub Segment Eliminations [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	2,907		2,535
Total consolidated sales	2,907		2,535
Operating Segments [Member] | Total Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	183,997		132,097
Total consolidated sales	$ 183,997		$ 132,097

[1] Includes amortization expenses, acquisition and integration expenses, and divestiture expenses.

[2] Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses.

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

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

[5] Includes gain on sale of business, foreign exchange (gain) loss and pension expense.

[6] Includes foreign exchange (gain) loss and pension expense.