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Subsequent Events - Additional Information (Details) - Subsequent Event - USD ($) $ / shares in Units, $ in Millions | Apr. 15, 2019 | Apr. 15, 2019 | Apr. 03, 2019
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Subsequent Event [Line Items] |  |  |
Dividends payment, date | May 08, 2019 |  |
Board of Directors |  |  |
Subsequent Event [Line Items] |  |  |
Common stock dividend ratio |  |  | 2
Common stock dividend date |  |  | May 07, 2019
Initial public offering date |  |  | May 08, 2019
Common stock dividend payment date |  |  | May 08, 2019
IPO | Board of Directors |  |  |
Subsequent Event [Line Items] |  |  |
Dividends payable, amount per share | $ 2.00 | $ 2.00 |
Dividends payable | $ 52.1 | $ 52.1 |
Dividends payment, date |  | May 10, 2019 |

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