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Intangibles Assets and Goodwill - Summary of Inputs and Assumptions Used in Performing Impairment Test for Intangible Assets and Goodwill (Detail) - EUR (€) € in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2017
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Net book value after impairment test | € 3,947 | € 3,846 | € 1,921
Italy [member] | Retail stores [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Net book value after impairment test | € 1,921 | € 1,921 |
Growth rate | 0.50% | 0.50% |
WACC | 11.00% | 10.00% |
Sales CAGR 2018-2022 | 6.00% | 5.00% |
Mexico [member] | Retail stores [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Net book value after impairment test | € 2,026 | € 1,925 |
Growth rate | 0.50% | 0.50% |
WACC | 18.00% | 17.00% |
Sales CAGR 2018-2022 | 8.50% | 8.50% |

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