The gain (loss) recognized as result of the fair value adjustment of the financial instrument.

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Number of investee's shares receivable in exchange for investment.

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The number of members that serve of the board of an associate.

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Number of Subsidiary's shares delivered in exchange for investment.

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The percentage of economic rights contributed in an acquisition.

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It represents the Percentage Of Minority Shareholders Interest.

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The percentage of voting rights contributed in an acquisition .

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No definition available.

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The proportion of the economic rights in an associate held by the entity.

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No definition available.

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The total number of board members of an entity.

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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No definition available.

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The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

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The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The proportion of the voting rights in an associate held by the entity. [Refer: Associates [member]]

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Subsequent Events - Acquisition of ownership interest in Shanghai RAAS (Details) € in Thousands			1 Months Ended	12 Months Ended
	Mar. 30, 2020 EUR (€) person	Dec. 31, 2019 EUR (€) shares	Mar. 31, 2019	Dec. 31, 2019 EUR (€) shares	Dec. 31, 2018 EUR (€)	Dec. 31, 2017 EUR (€)
Disclosure of non-adjusting events after reporting period [line items]
Number of subsidiary's shares delivered in exchange for investment \| shares				90
Number of shares received in exchange for investment \| shares		1,766,000,000		1,766,000,000
Investments accounted for using equity method \| €		€ 114,473		€ 114,473	€ 226,905	€ 219,009
Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Economic rights (as a percent)			55.00%
Voting rights (as percent)			60.00%
Shanghai RAAS Blood Products, Co. Ltd. \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Minority shareholders interest				45.00%
Shanghai RAAS Blood Products, Co. Ltd.
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest in associate			26.20%
Number of shares received in exchange for investment \| shares		1,766,000,000		1,766,000,000
Gain recognized, fair value adjustment \| €		€ 57,000
Shanghai RAAS Blood Products, Co. Ltd. \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Number of subsidiary's shares delivered in exchange for investment \| shares				90
Shanghai RAAS Blood Products, Co. Ltd. \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Economic rights (as a percent)			45.00%
Voting rights (in percent)			40.00%
Acquisition of ownership interest \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Economic rights (as a percent)	55.00%
Voting rights (as percent)	60.00%
Acquisition of ownership interest \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Total number of board members \| person	5
Acquisition of ownership interest \| Shanghai RAAS Blood Products, Co. Ltd.
Disclosure of non-adjusting events after reporting period [line items]
Total number of board members \| person	9
Acquisition of ownership interest \| Shanghai RAAS Blood Products, Co. Ltd. \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Number of members that serve of the board of an associate \| person	2
Acquisition of ownership interest \| Shanghai RAAS Blood Products, Co. Ltd.
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest in associate	26.20%
Number of members that serve of the board of an associate \| person	3
Investments accounted for using equity method \| €	€ 1,773,000
Acquisition of ownership interest \| Shanghai RAAS Blood Products, Co. Ltd. \| Grifols Diagnostics Solutions, Inc.
Disclosure of non-adjusting events after reporting period [line items]
Economic rights (as a percent)	45.00%
Voting rights contributed (as a percent)	40.00%
Acquisition of ownership interest \| Shanghai RAAS Blood Products, Co. Ltd. \| Creat Group Co. Ltd.
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest in associate	26.18%
Acquisition of ownership interest \| Shanghai RAAS Blood Products, Co. Ltd. \| RAAS China Limited
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest in associate	22.78%