Fair Value Measures - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Oct. 31, 2017	Oct. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	$ 774,732	$ 813,504
Total liabilities	200,086	183,195
Deferred compensation plan liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term liabilities	197,542	163,185
Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term assets	197,542	163,185
Foreign currency derivative contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Prepaid and other current assets	16,596	4,652
Accounts payable and accrued liabilities	2,544	20,010
Money market funds | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	560,594	499,274
Commercial paper | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		1,498
Commercial paper | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		25,431
U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		13,603
Certificates of deposit | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		4,200
Certificates of deposit | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		12,849
Corporate debt securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		58,778
Asset-backed securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		22,146
Non-U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		3,400
Other | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		4,488
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	758,136	666,947
Total liabilities	197,542	163,185
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	197,542	163,185
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	197,542	163,185
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	0
Accounts payable and accrued liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	560,594	499,274
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial paper | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial paper | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Certificates of deposit | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Certificates of deposit | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate debt securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		4,488
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	16,596	146,557
Total liabilities	2,544	20,010
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) | Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other long-term assets	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	16,596	4,652
Accounts payable and accrued liabilities	2,544	20,010
Significant Other Observable Inputs (Level 2) | Money market funds | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Significant Other Observable Inputs (Level 2) | Commercial paper | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		1,498
Significant Other Observable Inputs (Level 2) | Commercial paper | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		25,431
Significant Other Observable Inputs (Level 2) | U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		13,603
Significant Other Observable Inputs (Level 2) | Certificates of deposit | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		4,200
Significant Other Observable Inputs (Level 2) | Certificates of deposit | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		12,849
Significant Other Observable Inputs (Level 2) | Corporate debt securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		58,778
Significant Other Observable Inputs (Level 2) | Asset-backed securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		22,146
Significant Other Observable Inputs (Level 2) | Non-U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		3,400
Significant Other Observable Inputs (Level 2) | Other | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		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) | 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) | 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) | Money market funds | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	$ 0	0
Significant Unobservable Inputs (Level 3) | Commercial paper | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		0
Significant Unobservable Inputs (Level 3) | Commercial paper | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Significant Unobservable Inputs (Level 3) | U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Significant Unobservable Inputs (Level 3) | Certificates of deposit | Cash Equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		0
Significant Unobservable Inputs (Level 3) | Certificates of deposit | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Significant Unobservable Inputs (Level 3) | Corporate debt securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Significant Unobservable Inputs (Level 3) | Asset-backed securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Significant Unobservable Inputs (Level 3) | Non-U.S. government agency securities | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		0
Significant Unobservable Inputs (Level 3) | Other | Short-term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments		$ 0