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Income Taxes (Tables)
 12 Months Ended
Oct. 31, 2025
Income Tax Disclosure [Abstract]  
Schedule of Domestic and Foreign Components of Total Income Before Provision for Income Tax
The domestic and foreign components of our total income before provision for income taxes are as follows:
 Year Ended October 31,
 202520242023
 (in thousands)
United States$983,195 $1,333,132 $1,144,410 
Foreign409,947 180,726 161,060 
Total income before provision for income taxes
$1,393,142 $1,513,858 $1,305,470 
Schedule of Components of Provision (Benefit) for Income Taxes
The components of the provision (benefit) for income taxes are as follows:
 Year Ended October 31,
 202520242023
 (in thousands)
Current:
Federal$376,014 $345,859 $252,186 
State25,041 19,808 23,042 
Foreign118,696 110,021 22,869 
519,751 475,688 298,097 
Deferred:
Federal(339,076)(312,677)(191,249)
State(109,078)(39,164)(219)
Foreign(15,606)(24,129)(16,441)
(463,760)(375,970)(207,909)
Provision (benefit) for income taxes$55,991 $99,718 $90,188 
Schedule of Rate Reconciliation Between Provision (Benefit) for Income Taxes and Taxes Computed at Statutory Federal Rate
The provision (benefit) for income taxes differs from the taxes computed with the statutory federal income tax rate as follows: 
 Year Ended October 31,
 202520242023
 (in thousands)
Statutory federal tax$292,560 $317,912 $274,149 
State tax (benefit), net of federal effect 26,897 48,393 438 
Federal tax credits(64,818)(70,119)(60,500)
Tax (benefit) on foreign earnings
28,008 3,316 (17,571)
Foreign-derived intangible income deduction(106,903)(104,835)(80,034)
Tax settlements— — (23,752)
Stock-based compensation20,583 (43,419)(39,995)
Changes in valuation allowance(148,006)(57,371)29,631 
Capital loss on the sale of investments(30,868)— — 
Acquisition costs17,877 — — 
Other20,661 5,841 7,822 
Provision (benefit) for income taxes$55,991 $99,718 $90,188 
Schedule of Components of Deferred Tax Assets and Liabilities
The significant components of deferred tax assets and liabilities are as follows:
 
As of October 31,
 20252024
 (in thousands)
Net deferred tax assets:
Deferred tax assets:
Deferred revenue$164,953 $37,849 
Deferred compensation88,079 73,869 
Intangible and depreciable assets57,278 65,489 
Capitalized research and development costs1,352,914 978,085 
Stock-based compensation110,861 74,934 
Tax loss carryovers54,854 37,787 
Foreign tax credit carryovers43,342 42,534 
Research and other tax credit carryovers139,998 107,643 
Operating lease liabilities
127,570 108,235 
Accruals and reserves
117,113 49,935 
Gross deferred tax assets2,256,962 1,576,360 
Valuation allowance(38,900)(170,672)
Total deferred tax assets2,218,062 1,405,688 
Deferred tax liabilities:
Intangible assets
2,982,708 80,034 
Operating lease right-of-use-assets
104,486 84,512 
Undistributed earnings of foreign subsidiaries
24,074 8,800 
Other
269 21,641 
Total deferred tax liabilities3,111,537 194,987 
Net deferred tax assets (liabilities)
$(893,475)$1,210,701 
Schedule of Tax Loss and Credit Carryforwards Available to Offset Future Income Tax Liabilities
We have the following tax loss and credit carryforwards available to offset future income tax liabilities:
CarryforwardAmountExpiration
Date
 (in thousands) 
Federal net operating loss carryforward$11,531 2026-2042
Federal research credit carryforward1,636 2026-2035
Federal foreign tax credit carryforward35,780 2031
International foreign tax credit carryforward3,170 Indefinite
International net operating loss carryforward196,491 2027-Indefinite
California research credit carryforward171,267 Indefinite
Other state research credit carryforward29,849 2026-2045
State net operating loss carryforward37,840 2032-2045
Schedule of Reconciliation of Beginning and Ending Balance of Gross Unrecognized Tax Benefit A reconciliation of the beginning and ending balance of gross unrecognized tax benefits is summarized as follows:
As of October 31,
20252024
 (in thousands)
Beginning balance$61,854 $64,880 
Increases in unrecognized tax benefits related to prior year tax positions22,568 1,106 
Decreases in unrecognized tax benefits related to prior year tax positions(11,686)(8,639)
Increases in unrecognized tax benefits related to current year tax positions25,664 8,036 
Reductions in unrecognized tax benefits due to lapse of applicable statute of limitations(4,089)(4,380)
Increases in unrecognized tax benefits acquired79,321 161 
Changes in unrecognized tax benefits due to foreign currency translation102 690 
Ending balance$173,734 $61,854 
Schedule of Subsidiaries Remain Subject to Tax Examination
We and/or our subsidiaries remain subject to tax examination in the following jurisdictions:
JurisdictionYear(s) Subject to Examination
United StatesFiscal years after 2021
CaliforniaFiscal years after 2020
IrelandFiscal years after 2020
JapanFiscal years after 2020
KoreaFiscal years after 2020
TaiwanFiscal years after 2023
ChinaFiscal years after 2015
IndiaFiscal years after 2018