Commitments and Contingencies - Lease costs (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 26, 2020 |
Mar. 28, 2019 |
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| Lease Commitments | ||
| Existence of option to extend | true | |
| Weighted average discount rate | 5.20% | |
| Weighted average remaining lease term | 10 years | |
| Lease, Cost [Abstract] | ||
| Operating lease cost | $ 33,816 | $ 26,015 |
| Sublease income | (597) | (623) |
| Lease, Cost, Total | $ 33,219 | $ 25,392 |
| X | ||||||||||
- Definition Amount of lease cost recognized by lessee for lease contract. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- References No definition available.
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- Definition Indicates (true false) whether lessee has option to extend operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of sublease income excluding finance and operating lease expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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