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Leases - Schedule of Lease Balance Classifications Within Consolidated Balance Sheets and Lease Activities (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Operating lease right-of-use assets |  |  |
Balance as of December 29, 2018 | $ 0 |  |
Right-of-use assets recorded from adoption of ASC 842 | 29,893 |  |
Right-of-use assets obtained in exchange for new lease obligations during the period | 747 |  |
Reduction in the carrying amount of right-of-use assets during the period | (5,797) | $ 0 | $ 0
Impairment of right-of-use asset on Portland, Oregon office (recorded in Restructuring charges) | (977) |  |
Adjustments for present value and foreign currency effects | (275) |  |
Balance as of December 28, 2019 | 23,591 | 0 |
Operating lease liabilities |  |  |
Balance as of December 29, 2018 | 0 |  |
Lease liabilities recorded from adoption of ASC 842 | 32,273 |  |
Lease liabilities incurred for new lease obligations during the period | 747 |  |
Accretion of lease liabilities | 1,918 |  |
Operating cash used by payments on lease liabilities | (8,425) |  |
Adjustments for present value, foreign currency, and restructuring liability effects | (389) |  |
Balance as of December 28, 2019 | 26,124 | $ 0 |
Less: Current portion of operating lease liabilities | (4,686) |  |
Long-term operating lease liabilities, net of current portion | $ 21,438 |  |

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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977 + Details
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