BUSINESS ACQUISITIONS - Narrative (Details)						12 Months Ended
	Nov. 01, 2023 USD ($)	May 01, 2023 USD ($)	Sep. 01, 2022 USD ($)	May 02, 2022 USD ($)	Mar. 01, 2022 USD ($)	Dec. 31, 2023 USD ($) rate entity	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Goodwill						$ 343,991,000	$ 333,759,000	$ 296,541,000
Acquired intangibles						2,527,000	$ 19,430,000
Acquisition related costs						600,000
Higher range of undiscounted amounts to pay under contingent consideration						$ 10,300,000
Non-compete agreements
Business Acquisition [Line Items]
Amortization term of acquired intangibles						2 years 11 months 15 days
Customer relationships
Business Acquisition [Line Items]
Amortization term of acquired intangibles						5 years 3 months 10 days
Acquisitions 2023
Business Acquisition [Line Items]
Cash and stock paid for acquisition						$ 13,400,000
Cash payments						10,700,000
Contingent consideration						2,700,000
Goodwill						9,768,000
Acquired intangibles						$ 2,500,000
Number of completed acquisitions | entity						3
Lower range of undiscounted amounts to pay under contingent consideration						$ 0
Higher range of undiscounted amounts to pay under contingent consideration						$ 4,600,000
Acquisitions 2023 | Minimum
Business Acquisition [Line Items]
Achievement of annual EBITDA target period						1 year
Acquisitions 2023 | Maximum
Business Acquisition [Line Items]
Achievement of annual EBITDA target period						3 years
Acquisitions 2023 | Fair Value, Inputs, Level 3 | Contingent Consideration Liability | Valuation, Weighted Probability Of Possible Payments
Business Acquisition [Line Items]
Discount rate | rate						0.110
Acquisitions 2023 | Non-compete agreements
Business Acquisition [Line Items]
Acquired intangibles						$ 600,000
Amortization term of acquired intangibles						5 years
Acquisitions 2023 | Customer relationships
Business Acquisition [Line Items]
Acquired intangibles						$ 1,900,000
Amortization term of acquired intangibles						8 years
Alliance
Business Acquisition [Line Items]
Cash and stock paid for acquisition	$ 1,700,000
Cash payments	1,500,000
Contingent consideration	200,000
Goodwill	$ 1,300,000
Florida Valve
Business Acquisition [Line Items]
Cash and stock paid for acquisition		$ 3,300,000
Cash payments		3,000,000
Contingent consideration		300,000
Goodwill		2,400,000
Riordan
Business Acquisition [Line Items]
Cash and stock paid for acquisition		8,400,000
Cash payments		6,200,000
Contingent consideration		2,200,000
Goodwill		$ 6,100,000
Sullivan
Business Acquisition [Line Items]
Cash and stock paid for acquisition			$ 6,500,000
Cash payments			4,600,000
Contingent consideration			1,000,000
Goodwill			2,500,000
Equity interests			$ 900,000
Cisco
Business Acquisition [Line Items]
Cash and stock paid for acquisition				$ 52,300,000
Cash payments				32,000,000
Contingent consideration				4,500,000
Goodwill				30,500,000
Equity interests				4,400,000
Other consideration transferred				$ 11,000,000
Drydon
Business Acquisition [Line Items]
Cash and stock paid for acquisition					$ 7,900,000
Cash payments					4,900,000
Contingent consideration					2,600,000
Goodwill					5,300,000
Equity interests					400,000
Burlingame
Business Acquisition [Line Items]
Cash and stock paid for acquisition					1,100,000
Goodwill					$ 500,000