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Commitments and Contingencies (Details) € in Thousands |  |  |  |  | 36 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 23, 2021 complaint | Dec. 22, 2020 EUR (€) | Oct. 22, 2020 EUR (€) | Mar. 10, 2020 EUR (€) | Dec. 31, 2014 EUR (€)
Georgia State Court Investor Actions | Subsequent Event |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Number of complaints | complaint | 4 |  |  |  |
Belgium | Foreign tax authority | 2005 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  |  | € 46,135
Belgium | Foreign tax authority | 2006 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  |  | 38,817
Belgium | Foreign tax authority | 2007 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  |  | 39,635
Belgium | Foreign tax authority | 2008 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  |  | 30,131
Belgium | Foreign tax authority | 2009 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  |  | 25,486
Belgium | Foreign tax authority | 2010 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  |  | € 43,117
Belgium | Foreign tax authority | 2016 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  |  | € 67,959 |
Belgium | Foreign tax authority | 2017 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  | € 17,655 |  |  |
LUXEMBOURG | Foreign tax authority | 2017 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  | € 65,152 |  |
LUXEMBOURG | Foreign tax authority | 2013 |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Assessment received from Belgian tax authority (in euros) |  |  | € 45,466 |  |

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