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Leases - Balance Sheet Classification of Lease Liabilities (Details) - USD ($) $ in Thousands | Sep. 27, 2019 | Dec. 28, 2018
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Operating lease liabilities: |  |
Current portion included in Other current liabilities | $ 2,695 | $ 2,738
Long-term portion of lease liabilities | 23,661 | 12,099
Total operating lease liabilities | 26,356 | 14,837
Financing lease liabilities: |  |
Current portion included in Other current liabilities | 50 | 49
Long-term portion of lease liabilities | 44 | 79
Financing obligation for build-to-suit lease | 94 | 128
Total lease liabilities | $ 26,450 | $ 14,965

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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