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ACQUIRED INTANGIBLE ASSETS
 9 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
ACQUIRED INTANGIBLE ASSETS ACQUIRED INTANGIBLE ASSETS
The following table details acquired intangible assets (in thousands):
Balance at September 30, 2025
Weighted Average Estimated Useful LifeCostAccumulated AmortizationNet
Technology assets5 years$359,008 $(284,046)$74,962 
Customer assets15 years1,396,795 (366,020)1,030,775 
Trade names and other9 years389,137 (168,783)220,354 
Total$2,144,940 $(818,849)$1,326,091 

Balance at December 31, 2024
Weighted Average Estimated Useful LifeCostAccumulated AmortizationNet
Technology assets5 years$353,791 $(241,110)$112,681 
Customer assets15 years1,401,102 (332,153)1,068,949 
Trade names and other9 years389,137 (137,700)251,437 
Total$2,144,030 $(710,963)$1,433,067 

All intangible assets are amortized over their estimated useful lives.

The change in the carrying value of intangible assets was as follows (in thousands):
Three Months Ended
September 30,		Nine Months Ended
September 30,
2025202420252024
Acquired intangible assets, net, beginning of the period$1,368,735 $1,629,183 $1,433,067 $1,761,521 
Acquisitions5,217 7,536 5,217 7,536 
Amortization expense(47,990)(53,207)(144,615)(172,918)
Foreign currency translation and other adjustments129 24,424 32,422 11,797 
Acquired intangible assets, net, end of the period$1,326,091 $1,607,936 $1,326,091 $1,607,936 

The estimated future amortization expense of intangible assets as of September 30, 2025 was as follows (in thousands):
Remainder of 2025$52,655 
2026183,187 
2027139,623 
2028135,835 
2029135,204 
Thereafter679,587 
Total$1,326,091