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Subsequent Event - Additional Information (Details) - Subsequent Event
$ / shares in Units, $ in Millions
Nov. 01, 2019
USD ($)
$ / shares
Subsequent Event [Line Items]  
Special cash dividend declared | $ / shares $ 3.50
Estimated aggregate cash dividend declared | $ $ 490
Dividend payable date Dec. 04, 2019
Dividend record date Nov. 20, 2019