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Financial Risk Management - Summary of Exposure to Financial Counterparties by Rating Type (Parenthetical) (Detail) - EUR (€) € in Thousands	Dec. 31, 2016	Dec. 31, 2015
Disclosure of nature and extent of risks arising from financial instruments [abstract]
Credit exposure threshold amount	€ 250	€ 250

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Credit exposure threshold amount.

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- References

No definition available.

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