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Stock-Based Compensation and Shareholders' Equity (Tables)
 3 Months Ended
Jan. 30, 2021
Share-based Payment Arrangement [Abstract]  
Summary of the activity under the company's stock option plans
A summary of the Company’s stock option activity as of January 30, 2021 and changes during the three-month period then ended is presented below:
Options
Outstanding
(in thousands)
Weighted-
Average Exercise
Price Per Share
Weighted-
Average
Remaining
Contractual
Term in Years
Aggregate
Intrinsic
Value
Options outstanding at October 31, 20204,192 $70.73 
Options granted460 $144.06 
Options exercised(349)$56.94 
Options forfeited(21)$85.53 
Options expired(5)$37.52
Options outstanding at January 30, 20214,277 $79.71 5.9$289,219 
Options exercisable at January 30, 20212,332 $61.96 4.4$199,072 
Options vested or expected to vest at January 30, 2021 (1)4,158 $78.63 5.9$285,622 
(1) In addition to the vested options, the Company expects a portion of the unvested options to vest at some point in the future. The number of options expected to vest is calculated by applying an estimated forfeiture rate to the unvested options.
Schedule of share-based compensation, restricted stock units award activity
A summary of the Company’s restricted stock unit/award activity as of January 30, 2021 and changes during the three-month period then ended is presented below: 
Restricted
Stock Units/Awards
Outstanding
(in thousands)
Weighted-
Average Grant-
Date Fair Value
Per Share
Restricted stock units/awards outstanding at October 31, 20203,637 $91.54 
Units/Awards granted196 $138.21 
Restrictions lapsed(135)$86.08 
Forfeited(59)$99.73 
Restricted stock units/awards outstanding at January 30, 20213,639 $92.02 
Schedule of stock-based compensation expense
Total stock-based compensation expense recognized was as follows:
Three Months Ended
January 30, 2021February 1, 2020
Cost of sales$4,354 $4,564 
Research and development18,321 17,605 
Selling, marketing, general and administrative13,963 15,332 
Total stock-based compensation expense$36,638 $37,501