Executive and Supervisory Board Compensation - Share-Based Payment for Executive Board Members (Details) - Executive Board € in Thousands	12 Months Ended
Dec. 31, 2022 EUR (€) item	Dec. 31, 2021 EUR (€) item	Dec. 31, 2020 EUR (€) item
Share-Based Payment for Executive Board Members
Number of share units granted \| item	205,965	238,428	201,690
Total expense \| €	€ 9,986	€ 6,356	€ 11,173

The number of instruments granted in share-based payment arrangement.

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