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Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2019 | Dec. 29, 2018
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 134,380 | $ 135,115
Accumulated Amortization | (127,403) | (113,790)
Intangible assets, net | $ 6,977 | $ 21,325
Developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period (in years) | 5 years | 5 years
Intangible assets, gross | $ 110,987 | $ 110,987
Accumulated Amortization | (105,594) | (94,389)
Intangible assets, net | $ 5,393 | $ 16,598
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period (in years) | 5 years 9 months 22 days | 5 years 9 months 22 days
Intangible assets, gross | $ 22,934 | $ 22,934
Accumulated Amortization | (21,400) | (19,048)
Intangible assets, net | $ 1,534 | $ 3,886
Licensed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period (in years) | 5 years | 5 years
Intangible assets, gross | $ 459 | $ 1,194
Accumulated Amortization | (409) | (353)
Intangible assets, net | $ 50 | $ 841

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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