v3.25.1
Goodwill and Other Intangibles (Tables)
 3 Months Ended
Mar. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in Goodwill
The following table summarizes the changes in goodwill by reportable segment for the three-month period ended March 31, 2025 (in thousands):
Energy StorageSpecialtiesKetjenTotal
Balance at December 31, 2024(a)
$1,387,591 $32,577 $162,546 $1,582,714 
   Foreign currency translation adjustments18,372 10 5,048 23,430 
Balance at March 31, 2025(a)
$1,405,963 $32,587 $167,594 $1,606,144 
(a)    Balance at March 31, 2025 and December 31, 2024 includes an accumulated impairment loss of $6.8 million from the (“PCS”) reporting unit within the Ketjen segment. As a result, the balance of Ketjen at March 31, 2025 and December 31, 2024 fully consists of goodwill related to the Refining Solutions reporting unit.
Other Intangibles
The following table summarizes the changes in other intangibles and related accumulated amortization for the three-month period ended March 31, 2025 (in thousands):
Customer Lists and Relationships
Trade Names and Trademarks(a)
Patents and TechnologyOtherTotal
Gross Asset Value
  Balance at December 31, 2024
$402,012 $10,670 $32,265 $29,010 $473,957 
Foreign currency translation adjustments and other7,197 214 147 937 8,495 
  Balance at March 31, 2025
$409,209 $10,884 $32,412 $29,947 $482,452 
Accumulated Amortization
  Balance at December 31, 2024
$(216,231)$(1,324)$(14,253)$(11,396)$(243,204)
Amortization(4,615)— (629)(223)(5,467)
Foreign currency translation adjustments and other(3,761)— (89)(192)(4,042)
  Balance at March 31, 2025
$(224,607)$(1,324)$(14,971)$(11,811)$(252,713)
Net Book Value at December 31, 2024
$185,781 $9,346 $18,012 $17,614 $230,753 
Net Book Value at March 31, 2025
$184,602 $9,560 $17,441 $18,136 $229,739 
(a)    Net Book Value includes only indefinite-lived intangible assets.