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Consolidated Statements of Financial Position (Parenthetical) | Mar. 31, 2020 € / shares | Mar. 31, 2020 $ / shares | Sep. 30, 2019 € / shares | Sep. 30, 2019 $ / shares
--- | --- | --- | --- | ---
Ordinary shares, par value |  | $ 0.01 |  | $ 0.01
Preferred shares, par value |  | $ 0.01 |  | $ 0.01
Common Class A [Member] |  |  |  |
Ordinary shares, par value | € / shares | € 1.00 |  | € 1.00 |

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