Impairment and closure (Details) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 29, 2019
USD ($)
Restaurant
|
Sep. 29, 2019
USD ($)
|
Jun. 30, 2019
USD ($)
|
Mar. 31, 2019
USD ($)
|
Sep. 30, 2018
USD ($)
|
Dec. 29, 2019
USD ($)
Restaurant
|
Dec. 30, 2018
USD ($)
Restaurant
|
Dec. 31, 2017
USD ($)
|
|
| Impairment and closure costs [Abstract] | ||||||||
| Asset Impairment Charges | $ 12,693 | $ 12,336 | $ 0 | |||||
| Closure Costs, Number of Restaurants | Restaurant | 6 | 6 | ||||||
| Number of impaired restaurants | Restaurant | 7 | 7 | 6 | |||||
| Restructuring, Settlement and Impairment Provisions | $ 6,300 | $ 7,300 | $ 200 | $ 400 | $ 12,300 | $ 14,179 | $ 12,336 | $ 0 |
| Closure costs | $ 1,500 | $ 800 | ||||||
| X | ||||||||||
- Definition Closure Costs, Number of Restaurants No definition available.
|
| X | ||||||||||
- Definition Non cash expenses associated with the closure of a restaurant. No definition available.
|
| X | ||||||||||
- Definition Impairment Charges, Number of Restaurants No definition available.
|
| X | ||||||||||
- Definition Impairment and closure costs [Abstract] No definition available.
|
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|