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Share-Based Compensation Expense
 3 Months Ended
Jan. 31, 2020
Share-based Payment Arrangement [Abstract]  
Share-Based Compensation Expense SHARE-BASED COMPENSATION EXPENSE

The following table summarizes share-based compensation expense for the periods indicated (in thousands):
 
Quarter Ended January 31,
 
2020
 
2019
Product costs
$
671

 
$
637

Service costs
842

 
770

Share-based compensation expense included in cost of goods sold
1,513

 
1,407

Research and development
3,849

 
3,391

Sales and marketing
4,613

 
3,785

General and administrative
5,527

 
5,112

Share-based compensation expense included in operating expense
13,989

 
12,288

Share-based compensation expense capitalized in inventory, net
100

 
60

Total share-based compensation
$
15,602

 
$
13,755



As of January 31, 2020, total unrecognized share-based compensation expense was approximately $141.7 million, which relates to unvested stock unit awards and is expected to be recognized over a weighted-average period of 1.7 years.