Commitments and Contingencies (Details) € in Thousands			1 Months Ended		9 Months Ended	72 Months Ended
	Oct. 05, 2021 complaint	Apr. 23, 2021 complaint	Dec. 31, 2021 EUR (€)	Jun. 30, 2021 EUR (€)	Mar. 25, 2022 lawsuit	Dec. 31, 2010 EUR (€)
Pending Litigation
Commitments And Contingencies [Line Items]
Number of class action lawsuits | lawsuit					2
Georgia State Court Investor Actions
Commitments And Contingencies [Line Items]
Number of complaints | complaint		4
Georgia State Court Investor Actions | Pending Litigation
Commitments And Contingencies [Line Items]
Number of complaints | complaint	4
Belgium | Foreign tax authority | Tax Years 2005 to 2010
Commitments And Contingencies [Line Items]
Assessment received from Belgian tax authority (in euros) | €						€ 223,321
LUXEMBOURG | Foreign tax authority | 2018
Commitments And Contingencies [Line Items]
Assessment received from Belgian tax authority (in euros) | €			€ 186,734	€ 371,696