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INTANGIBLE ASSETS AND GOODWILL
 9 Months Ended
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS AND GOODWILL INTANGIBLE ASSETS AND GOODWILL
Intangible Assets

The components of our definite- and indefinite-lived intangible assets were as follows:
September 30, 2024December 31, 2023
(in thousands)Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Definite-lived
intangible assets:
Customer relationships$616,141 $460,209 $155,932 $583,326 $438,181 $145,145 
Unpatented technologies175,231 91,220 84,011 142,760 75,224 67,536 
Trademarks62,050 42,120 19,930 59,862 39,564 20,298 
Patents36,223 30,535 5,688 36,438 30,664 5,774 
889,645 624,084 265,561 822,386 583,633 238,753 
Indefinite-lived
intangible assets:
Trademarks3,600 — 3,600 3,600 — 3,600 
In-process research and development1,200 — 1,200 1,200 — 1,200 
4,800 — 4,800 4,800 — 4,800 
Total$894,445 $624,084 $270,361 $827,186 $583,633 $243,553 

Goodwill

The carrying amount of goodwill, including changes therein, by reportable segment is below:
(in thousands)Production Chemical TechnologiesProduction & Automation TechnologiesDrilling TechnologiesReservoir Chemical TechnologiesTotal
December 31, 2023$356,558 $211,370 $101,136 $— $669,064 
Acquisitions (1)
— 60,754 — — 60,754 
Foreign currency translation(2,366)2,331 — — (35)
September 30, 2024$354,192 $274,455 $101,136 $— $729,783 
______________________
(1)    See Note 10—Acquisitions, Divestitures and Sale Leaseback for additional information related to the acquisitions completed during the first and third quarters of 2024.

Goodwill is not subject to amortization but is tested for impairment on an annual basis or more frequently if impairment indicators arise.