XML 109 R133.htm IDEA: XBRL DOCUMENT
v3.20.1

Equity - Share Capital - Class B Shares (Details) | Dec. 31, 2019 item € / shares | Dec. 31, 2018 item € / shares | Jul. 23, 2012 | Jul. 22, 2012
--- | --- | --- | --- | ---
Equity |  |  |  |
Preference shares, annual preferred dividend, minimum (in Euros per share) | € / shares | € 0.01 | € 0.01 |  |
Exchange ratio |  |  | 1 | 2
Interests representing more than 10% of total capital | item | 0 | 0 |  |

X
- Definition Preference shares, annual preferred dividend, minimum. + References No definition available. + Details
Name: | grfs_PreferenceSharesAnnualPreferredDividendMinimum
Namespace Prefix: | grfs_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Preference shares, exchange ratio, American Depository Shares to preference shares. + References No definition available. + Details
Name: | grfs_PreferenceSharesExchangeRatioAmericanDepositorySharesToPreferenceShares
Namespace Prefix: | grfs_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total capital, interests representing more than ten percent of total capital. + References No definition available. + Details
Name: | grfs_TotalCapitalInterestsRepresentingMoreThanTenPercentOfTotalCapital
Namespace Prefix: | grfs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfClassesOfShareCapitalAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration