Fair Value Measures - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jul. 31, 2021	Oct. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	$ 744,953	$ 583,184
Total liabilities	336,314	272,117
Deferred compensation plan liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term liabilities	336,001	269,737
Foreign currency derivative contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Prepaid and other current assets	11,657	9,320
Accounts payable and accrued liabilities	313	2,380
Cash equivalents | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	249,814	304,127
Cash equivalents | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	3,079
Short-term investments | U.S. government agency & T-bills
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	7,747
Short-term investments | Municipal bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	2,466
Short-term investments | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	100,318
Short-term investments | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	33,505
Short-term investments | Others
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	737
Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term assets	335,630	269,737
Quoted Prices in  Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	585,444	573,864
Total liabilities	336,001	269,737
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Deferred compensation plan liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term liabilities	336,001	269,737
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Foreign currency derivative contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Prepaid and other current assets		0
Accounts payable and accrued liabilities	0	0
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Cash equivalents | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	249,814	304,127
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Cash equivalents | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Short-term investments | U.S. government agency & T-bills
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Short-term investments | Municipal bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Short-term investments | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Short-term investments | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Short-term investments | Others
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments
Quoted Prices in  Active Markets for Identical Assets (Level 1) | Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term assets	335,630	269,737
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	159,509	9,320
Total liabilities	313	2,380
Significant Other Observable Inputs (Level 2) | Deferred compensation plan liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term liabilities	0	0
Significant Other Observable Inputs (Level 2) | Foreign currency derivative contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Prepaid and other current assets	11,657	9,320
Accounts payable and accrued liabilities	313	2,380
Significant Other Observable Inputs (Level 2) | Cash equivalents | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Significant Other Observable Inputs (Level 2) | Cash equivalents | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	3,079
Significant Other Observable Inputs (Level 2) | Short-term investments | U.S. government agency & T-bills
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	7,747
Significant Other Observable Inputs (Level 2) | Short-term investments | Municipal bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	2,466
Significant Other Observable Inputs (Level 2) | Short-term investments | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	100,318
Significant Other Observable Inputs (Level 2) | Short-term investments | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	33,505
Significant Other Observable Inputs (Level 2) | Short-term investments | Others
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	737
Significant Other Observable Inputs (Level 2) | Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term assets	0	0
Significant Unobservable  Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	0	0
Total liabilities	0	0
Significant Unobservable  Inputs (Level 3) | Deferred compensation plan liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term liabilities	0	0
Significant Unobservable  Inputs (Level 3) | Foreign currency derivative contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Prepaid and other current assets	0	0
Accounts payable and accrued liabilities	0	0
Significant Unobservable  Inputs (Level 3) | Cash equivalents | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Significant Unobservable  Inputs (Level 3) | Cash equivalents | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0
Significant Unobservable  Inputs (Level 3) | Short-term investments | U.S. government agency & T-bills
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0
Significant Unobservable  Inputs (Level 3) | Short-term investments | Municipal bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0
Significant Unobservable  Inputs (Level 3) | Short-term investments | Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0
Significant Unobservable  Inputs (Level 3) | Short-term investments | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0
Significant Unobservable  Inputs (Level 3) | Short-term investments | Others
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0
Significant Unobservable  Inputs (Level 3) | Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term assets	$ 0	$ 0