The Company and basis of presentation (Details) € in Thousands	3 Months Ended
Mar. 31, 2021 EUR (€)	Mar. 31, 2020 EUR (€)
Costs of revenue previously recorded in selling, general and administrative expense
The Company and basis of presentation
Amount of reclassifications or changes in presentation		€ 20,213
Selling, general and administrative expenses previously recorded in (gain) loss related to divestitures of Care Coordination activities
The Company and basis of presentation
Amount of reclassifications or changes in presentation		24,332
Cash and cash equivalents and short-term debt reclassified from gross basis to net basis
The Company and basis of presentation
Amount of reclassifications or changes in presentation		€ 352,846
Argentina
The Company and basis of presentation
Index at March 31, 2021	435.9
Calendar year increase	13.00%
Loss on net monetary position in EUR	€ 7,494
Lebanon
The Company and basis of presentation
Index at March 31, 2021	331.0
Calendar year increase	17.00%
Loss on net monetary position in EUR	€ 852

Percentage of price index increase.

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- Definition

The amount that is reclassified when the entity changes classification or presentation in its financial statements.

+ References

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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.

+ References

No definition available.

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- Definition

The gains (losses) representing the difference resulting from the restatement of non-monetary assets, owners' equity and items in the statement of comprehensive income and the adjustment of index linked assets and liabilities in hyperinflationary reporting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The value of the level of the general price index used to restate financial statement information of an entity whose functional currency is the currency of a hyperinflationary economy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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