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Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2025
Goodwill.  
Schedule of finite-lived components of intangible assets

Intangible assets consisted of the following (in thousands):

Gross

Net

Carrying

Accumulated

Intangible

Amortization

Amount

Amortization

Assets

Period

At December 31, 2025

Intangible assets subject to amortization:

Terminalling services

$

26,365

$

(24,443)

$

1,922

 

20 years

Customer relationships

 

52,226

 

(45,906)

 

6,320

 

2-15 years

Supply contracts

 

97,269

 

(92,430)

 

4,839

 

5-10 years

Other intangible assets

 

5,995

 

(5,726)

 

269

 

2-20 years

Total intangible assets

$

181,855

$

(168,505)

$

13,350

At December 31, 2024

Intangible assets subject to amortization:

Terminalling services

$

26,365

$

(23,108)

$

3,257

 

20 years

Customer relationships

 

52,226

 

(44,605)

 

7,621

 

2-15 years

Supply contracts

 

97,269

 

(89,733)

 

7,536

 

5-10 years

Other intangible assets

 

5,995

 

(5,726)

 

269

 

2-20 years

Total intangible assets

$

181,855

$

(163,172)

$

18,683

Schedule of estimated annual intangible asset amortization expense for future years

The estimated annual intangible asset amortization expense for future years ending December 31 is as follows (in thousands):

2026

  ​ ​ ​

$

5,151

2027

 

3,650

2028

 

921

2029

 

720

2030

 

680

Thereafter

 

2,228

Total intangible assets

$

13,350