Fair Value Measurements (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Oct. 31, 2024
Assets
Cash equivalents	$ 52,978	$ 877,957
Short-term investments	72,929	153,869
Other long-term assets:
Deferred compensation plan assets	447,232	386,757
Liabilities
Deferred compensation plan liabilities	447,232	386,757
U.S. Treasury, agency & T-bills
Assets
Short-term investments	6,680	19,449
Municipal bonds
Assets
Short-term investments	22,065
Corporate debt securities
Assets
Short-term investments	43,999	105,256
Asset-backed securities
Assets
Short-term investments		29,164
Other
Assets
Short-term investments	185
Money market funds
Assets
Cash equivalents	52,978	869,972
U.S. Treasury, agency & T-bills
Assets
Cash equivalents		7,985
Fair Value, Measurements, Recurring
Prepaid and other current assets:
Contingent consideration receivable	22,202	22,202
Other long-term assets:
Deferred compensation plan assets	447,232	386,757
Marketable equity securities	785
Total assets	604,989	1,449,636
Liabilities
Deferred compensation plan liabilities	447,232	386,757
Total liabilities	457,329	393,789
Fair Value, Measurements, Recurring | Foreign currency derivative contracts
Prepaid and other current assets:
Foreign currency derivative contracts	8,863	8,851
Liabilities
Accounts payable and accrued liabilities:	10,097	7,032
Fair Value, Measurements, Recurring | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Prepaid and other current assets:
Contingent consideration receivable	0	0
Other long-term assets:
Deferred compensation plan assets	447,232	386,757
Marketable equity securities	785
Total assets	500,995	1,256,729
Liabilities
Deferred compensation plan liabilities	447,232	386,757
Total liabilities	447,232	386,757
Fair Value, Measurements, Recurring | Quoted Prices in  Active Markets for Identical Assets (Level 1) | Foreign currency derivative contracts
Prepaid and other current assets:
Foreign currency derivative contracts	0	0
Liabilities
Accounts payable and accrued liabilities:	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Prepaid and other current assets:
Contingent consideration receivable	0	0
Other long-term assets:
Deferred compensation plan assets	0	0
Marketable equity securities	0
Total assets	81,792	170,705
Liabilities
Deferred compensation plan liabilities	0	0
Total liabilities	10,097	7,032
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency derivative contracts
Prepaid and other current assets:
Foreign currency derivative contracts	8,863	8,851
Liabilities
Accounts payable and accrued liabilities:	10,097	7,032
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3)
Prepaid and other current assets:
Contingent consideration receivable	22,202	22,202
Other long-term assets:
Deferred compensation plan assets	0	0
Marketable equity securities	0
Total assets	22,202	22,202
Liabilities
Deferred compensation plan liabilities	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | Foreign currency derivative contracts
Prepaid and other current assets:
Foreign currency derivative contracts	0	0
Liabilities
Accounts payable and accrued liabilities:	0	0
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills
Assets
Short-term investments	6,680	19,449
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Short-term investments	0	0
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills | Significant Other Observable Inputs (Level 2)
Assets
Short-term investments	6,680	19,449
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills | Significant Unobservable  Inputs (Level 3)
Assets
Short-term investments	0	0
Fair Value, Measurements, Recurring | Municipal bonds
Assets
Short-term investments	22,065
Fair Value, Measurements, Recurring | Municipal bonds | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Short-term investments	0
Fair Value, Measurements, Recurring | Municipal bonds | Significant Other Observable Inputs (Level 2)
Assets
Short-term investments	22,065
Fair Value, Measurements, Recurring | Municipal bonds | Significant Unobservable  Inputs (Level 3)
Assets
Short-term investments	0
Fair Value, Measurements, Recurring | Corporate debt securities
Assets
Short-term investments	43,999	105,256
Fair Value, Measurements, Recurring | Corporate debt securities | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Short-term investments	0	0
Fair Value, Measurements, Recurring | Corporate debt securities | Significant Other Observable Inputs (Level 2)
Assets
Short-term investments	43,999	105,256
Fair Value, Measurements, Recurring | Corporate debt securities | Significant Unobservable  Inputs (Level 3)
Assets
Short-term investments	0	0
Fair Value, Measurements, Recurring | Asset-backed securities
Assets
Short-term investments		29,164
Fair Value, Measurements, Recurring | Asset-backed securities | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Short-term investments		0
Fair Value, Measurements, Recurring | Asset-backed securities | Significant Other Observable Inputs (Level 2)
Assets
Short-term investments		29,164
Fair Value, Measurements, Recurring | Asset-backed securities | Significant Unobservable  Inputs (Level 3)
Assets
Short-term investments		0
Fair Value, Measurements, Recurring | Other
Assets
Short-term investments	185
Fair Value, Measurements, Recurring | Other | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Short-term investments	0
Fair Value, Measurements, Recurring | Other | Significant Other Observable Inputs (Level 2)
Assets
Short-term investments	185
Fair Value, Measurements, Recurring | Other | Significant Unobservable  Inputs (Level 3)
Assets
Short-term investments	0
Fair Value, Measurements, Recurring | Money market funds
Assets
Cash equivalents	52,978	869,972
Fair Value, Measurements, Recurring | Money market funds | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Cash equivalents	52,978	869,972
Fair Value, Measurements, Recurring | Money market funds | Significant Other Observable Inputs (Level 2)
Assets
Cash equivalents	0	0
Fair Value, Measurements, Recurring | Money market funds | Significant Unobservable  Inputs (Level 3)
Assets
Cash equivalents	$ 0	0
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills
Assets
Cash equivalents		7,985
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills | Quoted Prices in  Active Markets for Identical Assets (Level 1)
Assets
Cash equivalents		0
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills | Significant Other Observable Inputs (Level 2)
Assets
Cash equivalents		7,985
Fair Value, Measurements, Recurring | U.S. Treasury, agency & T-bills | Significant Unobservable  Inputs (Level 3)
Assets
Cash equivalents		$ 0