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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2024

GOODWILL AND OTHER INTANGIBLE ASSETS

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

​

​	​	​	​	​	​	​	​	​	​	​
​	​	​	Water		​	Water		​	​	​
​		​	Infrastructure			Services			Total
​	​	​	(in thousands)
Balance as of December 31, 2023	​	​	$	3,245	​	$	1,438	​	$	4,683
Additions	​	​	​	13,532	​	​	—	​	​	13,532
Balance as of December 31, 2024	​	​	$	16,777	​	$	1,438	​	$	18,215

Summary of components of other intangible assets

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

As of December 31, 2024

​

As of December 31, 2023

​

Gross

Accumulated

Net

Gross

​

​

Accumulated

Net

​

​

Value

​

Amortization

​

Value

​

Value

​

Abandonment

​

Amortization

​

Value

​

​

(in thousands)

​

(in thousands)

Definite-lived

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Customer relationships

​

$

187,706

​

$

(76,638)

​

$

111,068

​

$

164,600

​

$

—

​

$

(61,216)

​

$

103,384

Patents and other intellectual property

​

​

14,272

​

​

(8,521)

​

​

5,751

​

​

12,772

​

​

—

​

​

(7,090)

​

​

5,682

Trademarks

​

​

—

​

​

—

​

​

—

​

​

14,360

​

​

(11,106)

​

​

(3,254)

​

​

—

Water rights and other

​

​

3,125

​

​

(1,510)

​

​

1,615

​

2,803

​

​

—

​

(2,711)

​

92

Total definite-lived

​

​

205,103

​

​

(86,669)

​

​

118,434

​

​

194,535

​

​

(11,106)

​

​

(74,271)

​

​

109,158

Indefinite-lived

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Water rights

​

​

5,281

​

​

—

​

​

5,281

​

​

7,031

​

​

—

​

​

—

​

​

7,031

Total indefinite-lived

​

​

5,281

​

​

—

​

​

5,281

​

​

7,031

​

​

—

​

​

—

​

​

7,031

Total other intangible assets, net

​

$

210,384

​

$

(86,669)

​

$

123,715

​

$

201,566

​

$

(11,106)

​

$

(74,271)

​

$

116,189

Summary of future estimated amortization expense for other intangible assets

​

​	​	​	​
Year Ending December 31,		Amount
​	​	(in thousands)
2025	​	$	17,511
2026	​		17,424
2027	​		16,922
2028	​		14,655
2029	​		14,114
Thereafter	​	​	37,808
Total	​	$	118,434

​

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