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Summary of Significant Accounting Policies - Consolidation and PP&E (Details) - USD ($)
$ in Millions
3 Months Ended 5 Months Ended 9 Months Ended
Nov. 30, 2016
Mar. 31, 2017
Mar. 31, 2016
Nov. 30, 2016
Mar. 31, 2017
Mar. 31, 2016
Property, Plant and Equipment            
Depreciation expense   $ 5.5 $ 4.3   $ 16.1 $ 8.5
Realty            
Principles of consolidation            
Initial ownership percentage in VIE       50.00%    
Remaining percentage in VIE acquired 50.00%