Quarterly report pursuant to Section 13 or 15(d)

Customer and Supplier Concentrations (Details)

v3.7.0.1
Customer and Supplier Concentrations (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Jun. 30, 2016
Concentration Risk [Line Items]          
Revenues $ 1,730,845 $ 1,512,750 $ 5,662,859 $ 5,048,829  
Receivables, net $ 42,863   $ 42,863   $ 43,302
Revenue | Customer concentrations          
Concentration Risk [Line Items]          
Concentration risk, percentage 100.00% 100.00% 100.00% 100.00%  
Account Receivable | Customer concentrations          
Concentration Risk [Line Items]          
Concentration risk, percentage     100.00%   100.00%
HSBC Bank USA | Revenue | Customer concentrations          
Concentration Risk [Line Items]          
Revenues $ 293,686 $ 245,022 $ 1,268,160 $ 860,048  
Concentration risk, percentage 17.00% 16.20% 22.40% 17.00%  
Mitsubishi Intl. Corp. | Revenue | Customer concentrations          
Concentration Risk [Line Items]          
Revenues $ 322,842 $ 140,624 $ 827,583 $ 358,599  
Concentration risk, percentage 18.60% 9.30% 14.60% 7.10%  
Customer A | Account Receivable | Customer concentrations          
Concentration Risk [Line Items]          
Receivables, net $ 7,660   $ 7,660   $ 1,336
Concentration risk, percentage     17.90%   3.10%
Customer B | Account Receivable | Customer concentrations          
Concentration Risk [Line Items]          
Receivables, net 6,170   $ 6,170   $ 5,256
Concentration risk, percentage     14.40%   12.10%
Major Customers | Revenue | Customer concentrations          
Concentration Risk [Line Items]          
Revenues $ 616,528 $ 385,646 $ 2,095,743 $ 1,218,647  
Concentration risk, percentage 35.60% 25.50% 37.00% 24.10%  
Major Customers | Account Receivable | Customer concentrations          
Concentration Risk [Line Items]          
Receivables, net $ 13,830   $ 13,830   $ 6,592
Concentration risk, percentage     32.30%   15.20%