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ACQUISITIONS (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended						12 Months Ended
ACQUISITIONS (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition
Bargain Purchase Gain							$ 0	$ 0	$ 6,482
Goodwill	$ 342,404		$ 328,046			$ 329,600	342,404	328,046	329,600
Business combination, acquisition related costs							300	200	900
Hydropompe S.r.l.
Business Acquisition
Business combination percentage of voting interests acquired		100.00%
Series of Individually Immaterial Business Acquisitions
Business Acquisition
Business combination consideration transferred	34,900	$ 8,700			$ 185,500
Business Combination, Contingent Consideration, Liability	$ 3,000						$ 3,000
Bargain Purchase Gain								400
Intangible assets			132,100					132,100
Goodwill			66,000					66,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount			$ 62,700					62,700
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period									$ 191,300
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual								$ 72,500
Casper Well Products
Business Acquisition
Business combination percentage of voting interests acquired	100.00%						100.00%
Business combination consideration transferred	$ 2,000
B&R Industries, Inc
Business Acquisition
Business combination percentage of voting interests acquired			100.00%					100.00%
Business combination consideration transferred			$ 16,300
Blake Group Holdings, Inc.
Business Acquisition
Business combination percentage of voting interests acquired			100.00%					100.00%
Business combination consideration transferred			$ 28,500
Minetuff Dewatering Pumps Australia Pty Ltd
Business Acquisition
Business combination percentage of voting interests acquired				100.00%
Business combination consideration transferred				$ 13,700
Puronics, Inc.
Business Acquisition
Business combination percentage of voting interests acquired					100.00%
New Aqua, LLC
Business Acquisition
Business combination percentage of voting interests acquired					100.00%
Intangible assets					$ 93,200
Atlantic Turbine Pump, LLC
Business Acquisition
Bargain Purchase Gain					$ 400
Gicon Pumps & Equipment, Inc.
Business Acquisition
Business combination percentage of voting interests acquired						100.00%			100.00%
Business combination consideration transferred						$ 28,100
Bargain Purchase Gain						$ 6,100
Minimum \| Series of Individually Immaterial Business Acquisitions
Business Acquisition
Acquired finite-lived Intangible asset, weighted average useful life (in years)								12 years
Maximum \| Series of Individually Immaterial Business Acquisitions
Business Acquisition
Acquired finite-lived Intangible asset, weighted average useful life (in years)								20 years