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Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Property, Plant and Equipment [Line Items]    
Depreciation expense $ 4.2 $ 1.7
Change inrevised estimate of remaining useful lives | Cost of goods sold    
Property, Plant and Equipment [Line Items]    
Depreciation expense $ 2.5