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Agreements and Transactions with Former Parent - Parent Company Equity (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]      
Total net transfers (to)/from Former Parent Company $ 0 $ 0 $ (6,371)
Cash pooling and general financing activities      
Related Party Transaction [Line Items]      
Total net transfers (to)/from Former Parent Company     (33,565)
Corporate allocations including income taxes      
Related Party Transaction [Line Items]      
Total net transfers (to)/from Former Parent Company     $ 27,194