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Leases - Maturities of lease liabilities under non-cancellable operating leases (Details) $ in Thousands | Jun. 29, 2019 USD ($)
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Operating lease commitments |
2019 (excluding the six months ended June 29, 2019) | $ 8,318
2020 | 16,931
2021 | 16,925
2022 | 17,009
2023 | 17,161
Thereafter | 95,007
Total lease payments | 171,351
Less: imputed interest | (33,172)
Total | 138,179
Additional operating leases that have not yet commenced | $ 21,100
Minimum |
Operating lease commitments |
Commencement of operating lease term | 6 years
Maximum |
Operating lease commitments |
Commencement of operating lease term | 11 years

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- Definition Amount of lessee's undiscounted obligation for lease payments for operating 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 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year. + 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 + Details
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