Quarterly report pursuant to Section 13 or 15(d)

Customer and Supplier Concentrations (Details)

v3.8.0.1
Customer and Supplier Concentrations (Details) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Concentration Risk [Line Items]    
Revenues $ 2,163,790 $ 1,805,653
Customer concentrations    
Concentration Risk [Line Items]    
Revenues $ 2,163,790 $ 1,805,653
Concentration risk, percentage 100.00% 100.00%
Revenue | Customer concentrations    
Concentration Risk [Line Items]    
Revenues $ 1,309,163 $ 727,325
Concentration risk, percentage 60.50% 40.30%
Morgan Stanley, LLC | Revenue | Customer concentrations    
Concentration Risk [Line Items]    
Revenues $ 260,786 $ 16,645
Concentration risk, percentage 12.10% 0.90%
HSBC Bank USA | Revenue | Customer concentrations    
Concentration Risk [Line Items]    
Revenues $ 511,264 $ 506,787
Concentration risk, percentage 23.60% 28.10%
Mitsubishi Intl. Corp. | Revenue | Customer concentrations    
Concentration Risk [Line Items]    
Revenues $ 537,113 $ 203,893
Concentration risk, percentage 24.80% 11.30%