GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2019

GOODWILL AND OTHER INTANGIBLE ASSETS.

Schedule of changes in the carrying amounts of goodwill by reportable segment

	Oilfield		Water		Wellsite		Water		Water
	Chemicals		Solutions		Services		Services		Infrastructure		Other		Total
	(in thousands)
Balance as of December 31, 2017	$	15,637	$	245,542	$	12,242	$	—	$	—	$	—	$	273,421
Additions		—		982		—		—		—		—		982
Impairment		(12,652)		—		(5,242)		—		—		—		(17,894)
Measurement period adjustments		(2,985)		20,277		—		—		—		—		17,292
Balance as of December 31, 2018		—		266,801		7,000		—		—		—		273,801
Resegmentation		—		(266,801)		(7,000)		186,335		80,466		7,000		—
Measurement period adjustment(1)		—		—		—		133		—		—		133
Affirm crane business divestiture		—		—		—		—		—		(2,604)		(2,604)
Affirm impairment		—		—		—		—		—		(4,396)		(4,396)
Balance as of September 30, 2019	$	—	$	—	$	—	$	186,468	$	80,466	$	—	$	266,934

(1) 2019 measurement period adjustment related to the Pro Well working capital settlement. See Note 3.

Summary of components of other intangible assets

	As of September 30, 2019						As of December 31, 2018
	Gross		Accumulated		Net		Gross		Accumulated		Net
	Value		Amortization		Value		Value		Amortization		Value
	(in thousands)						(in thousands)
Definite-lived
Customer relationships	$	116,578	$	17,966	$	98,612	$	171,245	$	66,402	$	104,843
Patents		10,110		2,169		7,941		10,110		1,417		8,693
Other		7,516		4,573		2,943		7,234		2,866		4,368
Total definite-lived		134,204		24,708		109,496		188,589		70,685		117,904
Indefinite-lived
Water rights		7,031		—		7,031		7,031		—		7,031
Trademarks		23,442		—		23,442		23,442		—		23,442
Total indefinite-lived		30,473		—		30,473		30,473		—		30,473
Total other intangible assets, net	$	164,677	$	24,708	$	139,969	$	219,062	$	70,685	$	148,377

Summary of future estimated amortization expense for other intangible assets

	Amount
	(in thousands)
Remainder of 2019	$	2,989
2020		11,661
2021		10,478

2022		10,263
2023		10,192
Thereafter		63,913
	$	109,496