Balance Sheet Components - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Dec. 26, 2020	Dec. 31, 2019
Other Assets [Abstract]
Convertible notes receivable		$ 3,000
Operating lease right-of-use assets	$ 19,669	23,588
Other	1,668	1,351
Total other assets	$ 21,337	$ 27,939

Amount of lessee's right to use underlying asset under operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

Name:	us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant