XML 39 R26.htm IDEA: XBRL DOCUMENT
v3.20.4

Impairment and Other Charges, Net (Tables) | 4 Months Ended
--- | ---
Jan. 17, 2021
Restructuring and Related Activities [Abstract] |
Impairment, Disposition of Property and Equipment, Restaurant Closing Costs and Restructuring | Impairment and other gains, net in the accompanying condensed consolidated statements of earnings is comprised of the following (in thousands):
| Sixteen Weeks Ended |  |
| January 17, 2021 |  | January 19, 2020 |  |  |  |
Restructuring costs | $ | 6 |  |  | $ | 1,045 |  |  |  |  |
Costs of closed restaurants and other | 1,023 |  |  | 101 |  |  |  |  |
Gains on disposition of property and equipment, net (1) | (2,160) |  |  | (10,437) |  |  |  |  |
Accelerated depreciation | 679 |  |  | — |  |  |  |  |
| $ | (452) |  |  | $ | (9,291) |  |  |  |  |
____________________________ (1)In 2021, includes gains on the sale of two real estate properties. In 2020, includes a $10.8 million gain related to the sale of one of our corporate office buildings. Costs of closed restaurants and other — Costs of closed restaurants include impairment charges as a result of our decision to close restaurants, ongoing costs associated with closed restaurants, and canceled project costs.

X
- Definition Schedule of Impairment and Disposal Costs Included in Impairment and Other Charges [Table Text Block] + References No definition available. + Details
Name: | jack_ScheduleOfImpairmentAndDisposalCostsIncludedInImpairmentAndOtherChargesTableTextBlock
Namespace Prefix: | jack_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration