Details of Certain Balance Sheet Accounts - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Dec. 28, 2019
Property and equipment, net:
Property and equipment, gross	$ 648,028	$ 638,732
Less: Accumulated depreciation	317,672	271,965
Property and equipment, net	330,356	366,767
Land and building
Property and equipment, net:
Property and equipment, gross	3,624	3,632
Equipment
Property and equipment, net:
Property and equipment, gross	198,601	188,593
Information technology hardware and software
Property and equipment, net:
Property and equipment, gross	116,232	115,283
Furniture and fixtures
Property and equipment, net:
Property and equipment, gross	55,068	55,146
Leasehold improvements
Property and equipment, net:
Property and equipment, gross	215,598	213,124
Construction in progress
Property and equipment, net:
Property and equipment, gross	21,743	26,517
Right of use assets under finance leases
Property and equipment, net:
Right of use assets under finance leases	$ 37,162	$ 36,437

Amount, before accumulated amortization, of right-of-use asset from finance lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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+ References

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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