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GOODWILL AND ACQUIRED INTANGIBLES
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND ACQUIRED INTANGIBLES GOODWILL AND ACQUIRED INTANGIBLES
Goodwill
The changes in the carrying amount of goodwill during fiscal 2024 and 2023 were as follows:
 Gross Carrying
Amount
 (In thousands)
Balance as of December 31, 2022$1,374,268 
Goodwill resulting from acquisitions160,083 
Effect of foreign currency translation1,494 
Balance as of December 31, 20231,535,845 
Goodwill resulting from acquisitions889,585 
Effect of foreign currency translation(46,759)
Balance as of December 31, 2024$2,378,671 
Cadence completed its annual goodwill impairment test during the third quarter of fiscal 2024 and determined that the fair value of Cadence’s single reporting unit exceeded the carrying amount of its net assets and that no impairment existed.
Acquired Intangibles, Net
Acquired intangibles as of December 31, 2024, were as follows, excluding intangibles that were fully amortized as of December 31, 2023:
Gross Carrying
Amount		Accumulated
Amortization		Acquired
Intangibles, Net
 (In thousands)
Existing technology$465,453 $(199,126)$266,327 
Agreements and relationships386,365 (78,605)307,760 
Tradenames, trademarks and patents28,113 (7,466)20,647 
Total acquired intangibles$879,931 $(285,197)$594,734 
During fiscal 2024, Cadence completed certain projects previously included in in-process technology and transferred $6.8 million to existing technology.
Acquired intangibles as of December 31, 2023, were as follows, excluding intangibles that were fully amortized as of December 31, 2022:
Gross Carrying
Amount		Accumulated
Amortization		Acquired
Intangibles, Net
 (In thousands)
Existing technology$325,710 $(141,659)$184,051 
Agreements and relationships198,259 (61,395)136,864 
Tradenames, trademarks and patents13,460 (4,332)9,128 
Total acquired intangibles with definite lives$537,429 $(207,386)$330,043 
In-process technology6,800 — 6,800 
Total acquired intangibles$544,229 $(207,386)$336,843 
Amortization expense from existing technology is included in cost of product and maintenance. Amortization expense for fiscal 2024, 2023 and 2022, by consolidated income statement caption, was as follows:
202420232022
 (In thousands)
Cost of product and maintenance$60,074 $43,808 $41,348 
Amortization of acquired intangibles30,375 18,162 18,470 
Total amortization of acquired intangibles$90,449 $61,970 $59,818 
As of December 31, 2024, the estimated amortization expense for intangible assets with definite lives was as follows for the following five fiscal years and thereafter:
 (In thousands)
2025$91,486 
202686,763 
202784,480 
202879,023 
202964,292 
Thereafter188,690 
Total estimated amortization expense$594,734