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Leases (Tables) | 12 Months Ended
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Dec. 26, 2018
Leases [Abstract] |
Schedule of minimum future lease commitments and amounts to be received as lessor or sublessor | Minimum future lease commitments and amounts to be received as lessor or sublessor under non-cancelable leases, including leases for both open and closed restaurants and optional renewal periods that have been included in the lease term, at December 26, 2018 were as follows:
| Commitments |  | Lease Receipts
| Capital |  | Operating |  | Operating
| (In thousands)
2019 | $ | 9,271 |  |  | $ | 23,504 |  |  | $ | 21,001 |
2020 | 8,664 |  |  | 20,161 |  |  | 18,493 |
2021 | 8,010 |  |  | 17,316 |  |  | 16,573 |
2022 | 7,320 |  |  | 14,646 |  |  | 14,887 |
2023 | 6,451 |  |  | 11,881 |  |  | 12,932 |
Thereafter | 33,670 |  |  | 49,004 |  |  | 65,273 |
Total | 73,386 |  |  | $ | 136,512 |  |  | $ | 149,159 |
Less imputed interest | 42,795 |  |  |  |  |
Present value of capital lease obligations | $ | 30,591 |  |  |  |  |
Schedule of rental expense and income | Rental expense and income were comprised of the following:
| Fiscal Year Ended
| December 26, 2018 |  | December 27, 2017 |  | December 28, 2016
| (In thousands)
Rental expense: |  |  |  |  |
Included as a component of occupancy: |  |  |  |  |
Base rents | $ | 10,272 |  |  | $ | 9,315 |  |  | $ | 8,602 |
Contingent rents | 3,074 |  |  | 3,168 |  |  | 3,351 |
Included as a component of costs of franchise and license expense: |  |  |  |  |
Base rents | $ | 15,108 |  |  | $ | 17,674 |  |  | $ | 19,883 |
Contingent rents | $ | 2,629 |  |  | $ | 2,864 |  |  | $ | 3,077 |
Total rental expense | $ | 31,083 |  |  | $ | 33,021 |  |  | $ | 34,913 |
Rental income: |  |  |  |  |
Included as a component of franchise and license revenue: |  |  |  |  |
Base rents | $ | 22,831 |  |  | $ | 25,781 |  |  | $ | 28,183 |
Contingent rents | 4,662 |  |  | 5,042 |  |  | 5,337 |
Total rental income | $ | 27,493 |  |  | $ | 30,823 |  |  | $ | 33,520 |

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- Definition Schedule of minimum future lease commitments and amounts to be received as lessor or sublessor [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of rental expense and rental income from operating leases for each period for which an income statement is presented with separate amounts for minimum rentals and contingent rentals. + References No definition available. + Details
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Namespace Prefix: | denn_
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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