SEGMENT INFORMATION - Total Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
SEGMENT INFORMATION
Total assets	$ 1,545,211	$ 1,366,282
Operating segment \| Water Infrastructure
SEGMENT INFORMATION
Total assets	766,670	652,870
Operating segment \| Water Services
SEGMENT INFORMATION
Total assets	571,895	523,545
Operating segment \| Chemical Technologies
SEGMENT INFORMATION
Total assets	153,889	136,658
Operating segment \| Other
SEGMENT INFORMATION
Total assets	$ 52,757	$ 53,209

Amount of asset recognized for present right to economic benefit.

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+ Details