SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)
SEGMENT INFORMATION
Number of reportable segments | segment			3
Segment information
Revenue	$ 375,072	$ 204,633	$ 1,005,744	$ 509,492
(Loss) Income before taxes	25,211	(14,107)	48,531	(61,322)
Depreciation and Amortization	27,215	23,466	84,061	67,407
Capital Expenditures	19,521	18,869	58,591	32,625
Income (loss) from operations	28,432	(13,775)	32,420	(57,192)
Bargain purchase gain	(3,273)		13,768
Other income (expense), net	1,153	(222)	2,277	(956)
Operating segment | Water Services
Segment information
Revenue	222,108	113,564	583,955	257,511
(Loss) Income before taxes	23,892	(1,622)	40,772	(24,834)
Depreciation and Amortization	16,926	13,698	47,857	39,091
Capital Expenditures	7,318	7,847	21,309	10,820
Operating segment | Water Infrastructure
Segment information
Revenue	76,047	36,787	196,970	107,922
(Loss) Income before taxes	11,193	(544)	17,070	228
Depreciation and Amortization	7,471	6,860	27,341	19,561
Capital Expenditures	10,555	8,578	32,234	18,160
Operating segment | Oilfield Chemicals
Segment information
Revenue	79,705	55,538	232,120	148,817
(Loss) Income before taxes	8,657	(39)	18,027	(291)
Depreciation and Amortization	2,275	2,346	7,228	6,920
Capital Expenditures	1,121	2,066	2,017	3,266
Operating segment | Other.
Segment information
(Loss) Income before taxes	(3)	(2)	(111)	(18)
Elimination
Segment information
Revenue	(2,788)	(1,256)	(7,301)	(4,758)
Corporate
Segment information
(Loss) Income before taxes	(15,307)	(11,568)	(43,338)	(32,277)
Depreciation and Amortization	543	562	1,635	1,835
Capital Expenditures	527	378	3,031	379
Material reconciling items
Segment information
Income (loss) from operations	43,739	(2,207)	75,758	(24,915)
Interest expense, net	(616)	(419)	(1,830)	(1,254)
Other income (expense), net	$ 668	$ 87	$ 4,173	$ (2,876)