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Operating Segments and Geographic Data (Tables)
 12 Months Ended
Sep. 24, 2021
Segments, Geographical Areas [Abstract]  
Revenue By Geographic Region
Revenue CategoryBasis For Determining Geographic Location
   LicensingRegion in which our licensees’ headquarters are located
   ProductsDestination to which our products are shipped
   ServicesLocation in which the relevant services are performed
The following tables present selected information regarding total revenue by geographic location (amounts presented in thousands).
Revenue Composition—U.S. and International
Fiscal Year Ended
LocationSeptember 24,
2021		September 25,
2020		September 27,
2019
United States$419,901 $460,972 $449,203 
International861,355 700,820 792,417 
Total revenue$1,281,256 $1,161,792 $1,241,620 
Schedule Of Concentration Of Revenue From Individual Geographic Regions Revenue Concentration—Significant Individual Geographic Regions
Fiscal Year Ended
LocationSeptember 24,
2021		September 25,
2020		September 27,
2019
United States33 %40 %36 %
South Korea14 %12 %12 %
China23 %20 %20 %
Japan11 %9 %11 %
Europe10 %10 %12 %
Other9 %9 %9 %
Total100 %100 %100 %
Schedule Of Long-Lived Tangible Assets, Net Of Accumulated Depreciation, By Geographic Region Long-lived tangible assets, net of accumulated depreciation, by geographic region were as follows (in thousands):
LocationSeptember 24,
2021		September 25,
2020
United States$432,968 $453,889 
International101,413 88,074 
Total long-lived tangible assets, net of accumulated depreciation$534,381 $541,963