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Fair Value Measurements (Details) - USD ($)
Oct. 31, 2020
Nov. 02, 2019
Assets:    
Debt securities $ 232,893,000  
Liabilities:    
Contingent consideration 0 $ 4,372,000
Fair Value, Measurements, Recurring    
Assets:    
Money market funds 889,293,000 759,114,000
Deferred compensation plan assets 8,213,000 4,974,000
Total assets measured at fair value 1,180,842,000 885,612,000
Liabilities:    
Contingent consideration   3,705,000
Total liabilities measured at fair value 29,194,000 24,833,000
Fair Value, Measurements, Recurring | Bond mutual fund    
Assets:    
Debt securities 50,361,000  
Fair Value, Measurements, Recurring | U.S. government obligations    
Assets:    
Debt securities 232,893,000 119,954,000
Level 1 | Fair Value, Measurements, Recurring    
Assets:    
Money market funds 889,293,000 759,114,000
Deferred compensation plan assets 8,213,000 4,974,000
Total assets measured at fair value 947,867,000 764,088,000
Liabilities:    
Contingent consideration   0
Total liabilities measured at fair value 0 0
Level 1 | Fair Value, Measurements, Recurring | Bond mutual fund    
Assets:    
Debt securities 50,361,000  
Level 1 | Fair Value, Measurements, Recurring | U.S. government obligations    
Assets:    
Debt securities 0 0
Level 2 | Fair Value, Measurements, Recurring    
Assets:    
Money market funds 0 0
Deferred compensation plan assets 0 0
Total assets measured at fair value 232,975,000 121,524,000
Liabilities:    
Contingent consideration   0
Total liabilities measured at fair value 29,194,000 21,128,000
Level 2 | Fair Value, Measurements, Recurring | Bond mutual fund    
Assets:    
Debt securities 0  
Level 2 | Fair Value, Measurements, Recurring | U.S. government obligations    
Assets:    
Debt securities 232,893,000 119,954,000
Level 3 | Fair Value, Measurements, Recurring    
Assets:    
Money market funds 0 0
Deferred compensation plan assets 0 0
Total assets measured at fair value 0 0
Liabilities:    
Contingent consideration   3,705,000
Total liabilities measured at fair value 0 3,705,000
Level 3 | Fair Value, Measurements, Recurring | Bond mutual fund    
Assets:    
Debt securities 0  
Level 3 | Fair Value, Measurements, Recurring | U.S. government obligations    
Assets:    
Debt securities 0 0
Foreign currency forward contracts | Fair Value, Measurements, Recurring    
Assets:    
Foreign currency forward contracts 82,000 1,570,000
Liabilities:    
Derivative liability 681,000 35,000
Foreign currency forward contracts | Level 1 | Fair Value, Measurements, Recurring    
Assets:    
Foreign currency forward contracts 0 0
Liabilities:    
Derivative liability 0 0
Foreign currency forward contracts | Level 2 | Fair Value, Measurements, Recurring    
Assets:    
Foreign currency forward contracts 82,000 1,570,000
Liabilities:    
Derivative liability 681,000 35,000
Foreign currency forward contracts | Level 3 | Fair Value, Measurements, Recurring    
Assets:    
Foreign currency forward contracts 0 0
Liabilities:    
Derivative liability 0 0
Forward starting interest rate swaps | Fair Value, Measurements, Recurring    
Liabilities:    
Derivative liability 28,513,000 21,093,000
Forward starting interest rate swaps | Level 1 | Fair Value, Measurements, Recurring    
Liabilities:    
Derivative liability 0 0
Forward starting interest rate swaps | Level 2 | Fair Value, Measurements, Recurring    
Liabilities:    
Derivative liability 28,513,000 21,093,000
Forward starting interest rate swaps | Level 3 | Fair Value, Measurements, Recurring    
Liabilities:    
Derivative liability $ 0 $ 0