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Basis of Presentation and Recent Accounting Pronouncements (Details) (USD $)
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4 Months Ended | |
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Apr. 19, 2015
segment
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Apr. 20, 2014
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| Franchisor Disclosure [Line Items] | ||
| Number of operating segments | 1us-gaap_NumberOfOperatingSegments | |
| Number of reportable segments | 1us-gaap_NumberOfReportableSegments | |
| Length of fiscal period | 112 days | 112 days |
| Gift card breakage revenue recognized | $ 1,400,000us-gaap_RevenueRecognitionGiftCardsBreakage | |
| Net income | 16,565,000us-gaap_NetIncomeLoss | 11,944,000us-gaap_NetIncomeLoss |
| Earnings per share, diluted (in dollars per share) | $ 1.16us-gaap_EarningsPerShareDiluted | $ 0.82us-gaap_EarningsPerShareDiluted |
| Company-owned operated restaurants | ||
| Franchisor Disclosure [Line Items] | ||
| Number of restaurants |
418us-gaap_NumberOfRestaurants / us-gaap_FranchisorDisclosureAxis = us-gaap_EntityOperatedUnitsMember |
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| Number of states in which restaurants are located |
38us-gaap_NumberOfStatesInWhichEntityOperates / us-gaap_FranchisorDisclosureAxis = us-gaap_EntityOperatedUnitsMember |
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| Number of Canadian provinces in which restaurants are located |
2rrgb_NumberOfProvincesInWhichEntityOperates / us-gaap_FranchisorDisclosureAxis = us-gaap_EntityOperatedUnitsMember |
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| Franchised restaurants | ||
| Franchisor Disclosure [Line Items] | ||
| Number of restaurants |
99us-gaap_NumberOfRestaurants / us-gaap_FranchisorDisclosureAxis = us-gaap_FranchisedUnitsMember |
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| Number of states in which restaurants are located |
15us-gaap_NumberOfStatesInWhichEntityOperates / us-gaap_FranchisorDisclosureAxis = us-gaap_FranchisedUnitsMember |
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| Change in accounting estimate | ||
| Franchisor Disclosure [Line Items] | ||
| Net income |
$ 900,000us-gaap_NetIncomeLoss / us-gaap_ChangeInAccountingEstimateByTypeAxis = us-gaap_ChangeInAccountingMethodAccountedForAsChangeInEstimateMember |
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| Earnings per share, diluted (in dollars per share) |
$ 0.06us-gaap_EarningsPerShareDiluted / us-gaap_ChangeInAccountingEstimateByTypeAxis = us-gaap_ChangeInAccountingMethodAccountedForAsChangeInEstimateMember |
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| X | ||||||||||
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- Definition
The number of provinces the entity operates in as of the balance sheet date. No definition available.
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
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| X | ||||||||||
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- Definition
Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available.
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| X | ||||||||||
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- Definition
Represents the number of restaurants. No definition available.
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| X | ||||||||||
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- Definition
The number of states the entity operates in as of the balance sheet date. No definition available.
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| X | ||||||||||
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- Definition
The amount of breakage recognized related to unredeemed gift cards. Breakage occurs when a customer pays in advance of vendor performance and does not demand full performance for various reasons. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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- Details
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