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Subsequent Events (Details) - USD ($)
$ in Thousands
6 Months Ended
Aug. 02, 2017
Jun. 30, 2017
Jun. 30, 2016
Subsequent Event [Line Items]      
Cash payment to acquire business   $ 759 $ 25,394
Senior Secured Credit Facility | Amended Facility      
Subsequent Event [Line Items]      
Credit facility, maximum borrowing capacity   $ 1,700,000  
Subsequent Event | Tronox Alkali Corporation      
Subsequent Event [Line Items]      
Cash payment to acquire business $ 1,325,000