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Goodwill and Purchased and Other Intangibles (Tables)
 3 Months Ended
Mar. 01, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Purchased and other intangible assets Purchased and other intangible assets subject to amortization as of March 1, 2019 and November 30, 2018 were as follows (in thousands): 
 
2019
 
2018
 
Cost
 
Accumulated Amortization
 
Net
 
Cost
 
Accumulated Amortization
 
Net
Purchased technology
$
775,474

 
$
(139,200
)
 
$
636,274

 
$
750,286

 
$
(118,812
)
 
$
631,474

Customer contracts and relationships
$
1,248,258

 
$
(364,095
)
 
$
884,163

 
$
1,329,432

 
$
(416,176
)
 
$
913,256

Trademarks
384,855

 
(38,004
)
 
346,851

 
384,855

 
(25,968
)
 
358,887

Acquired rights to use technology
59,906

 
(45,015
)
 
14,891

 
58,966

 
(48,770
)
 
10,196

Backlog
147,300

 
(29,982
)
 
117,318

 
147,300

 
(13,299
)
 
134,001

Other intangibles
23,780

 
(6,174
)
 
17,606

 
51,096

 
(29,909
)
 
21,187

Total other intangible assets
$
1,864,099

 
$
(483,270
)
 
$
1,380,829

 
$
1,971,649

 
$
(534,122
)
 
$
1,437,527

Purchased and other intangible assets, net
$
2,639,573

 
$
(622,470
)
 
$
2,017,103

 
$
2,721,935

 
$
(652,934
)
 
$
2,069,001
Amortization expense in future periods As of March 1, 2019, we expect amortization expense in future periods to be as follows (in thousands):
Fiscal Year
 
Purchased
Technology
 
Other Intangible
Assets
Remainder of 2019
$
95,761

 
$
201,156

2020
126,123

 
235,431

2021
103,796

 
148,935

2022
86,921

 
134,472

2023
76,921

 
134,330

Thereafter
146,752

 
526,505

Total expected amortization expense
$
636,274

 
$
1,380,829