Goodwill and Intangible Assets (Tables)

12 Months Ended

Oct. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill activity by reportable segment consists of the following:

	Design Automation		Design IP		Total
	(in thousands)
Balance at October 31, 2023	$	2,400,682	$	945,383	$	3,346,065
Additions	61,803		34,339		96,142
Adjustments	170		—		170
Effect of foreign currency translation	6,602		(129)		6,473
Balance at October 31, 2024	2,469,257		979,593		3,448,850
Additions	23,442,889		—		23,442,889
Adjustments (OSG Divestiture)	(19,471)		—		(19,471)
Effect of foreign currency translation	24,255		2,692		26,947
Balance at October 31, 2025	$	25,916,930	$	982,285	$	26,899,215

Schedule of Intangible Assets

Intangible assets as of October 31, 2025 consists of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Amount
	(in thousands)
Core/developed technology	$	7,309,753	$	929,901	$	6,379,852
Customer relationships	5,415,558		428,377		4,987,181
Contract rights intangible	614,358		239,808		374,550
Trademarks and trade names	962,925		24,917		938,008
Total	$	14,302,594	$	1,623,003	$	12,679,591

Intangible assets as of October 31, 2024 consists of the following:

	Gross Carrying Amount		Accumulated Amortization and Impairment		Net Amount
	(in thousands)
Core/developed technology	$	904,347	$	777,518	$	126,829
Customer relationships	314,140		247,025		67,115
Contract rights intangible	176,382		175,170		1,212
Trademarks and trade names	12,925		12,917		8
Total	$	1,407,794	$	1,212,630	$	195,164

Schedule of Amortization Expense Related to Intangible Assets

Amortization expense related to acquired intangible assets, including the impairment charge, consists of the following:

	Year Ended October 31,
	2025		2024		2023
	(in thousands)
Core/developed technology	$	247,210	$	104,797	$	42,892
Customer relationships	180,525		15,550		9,288
Contract rights intangible	64,648		3,872		2,389
Trademarks and trade names	12,000		15		7
Capitalized software development costs(1)	—		—		4,770
Total	$	504,383	$	124,234	$	59,346

(1)Amortization of capitalized software development costs is included in cost of products revenue in the consolidated statements of income.

Schedule of Estimated Future Amortization of Acquired Intangible Assets

The following table presents the estimated future amortization of acquired intangible assets as of October 31, 2025:

Fiscal Year	(in thousands)
2026	$	1,613,410
2027	1,544,994
2028	1,384,004
2029	1,381,360
2030	1,375,519
2031 and thereafter	5,380,304
Total	$	12,679,591