Annual report pursuant to Section 13 and 15(d)

Assets and Liabilities, at Fair Value (Details)

v3.5.0.2
Assets and Liabilities, at Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Jun. 30, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative assets - future and forward contracts $ 38,763 $ 18,253
Liability on borrowed metals 4,352 9,500
Product financing arrangement 59,358 39,425
Derivative liabilities - open sale and purchase commitments, net, included in payables 36,454 17,897
Derivative liabilities - futures contracts 43,870 24,153
Accrued liabilities 7,660 5,330
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash 17,142 20,927
Receivables, net 43,302 30,025
Income tax receivables 7,318 7,846
Lines of credit 212,000 147,000
Liability on borrowed metals 4,352 9,500
Product financing arrangement 59,358 39,425
Accounts payable, advances and other payables 46,769 50,639
Accrued liabilities 7,660 5,330
Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash 17,142 20,927
Receivables, net 43,302 30,025
Income tax receivables 7,318 7,846
Lines of credit 212,000 147,000
Liability on borrowed metals 4,352 9,500
Product financing arrangement 59,358 39,425
Accounts payable, advances and other payables 46,769 50,639
Accrued liabilities 7,660 5,330
Open sale and purchase commitments | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Secured loans 70,504 49,316
Derivative assets - open sale and purchase commitments, net 32,347 1,722
Open sale and purchase commitments | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Secured loans 70,504 49,316
Derivative assets - open sale and purchase commitments, net 32,347 1,722
Forward contracts | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative assets - future and forward contracts 1,385 4,279
Forward contracts | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative assets - future and forward contracts 1,385 4,279
Future contracts | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative assets - future and forward contracts 0 5,363
Future contracts | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative assets - future and forward contracts 0 5,363
Forward contracts | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - open sale and purchase commitments, net, included in payables 12,439 0
Forward contracts | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - open sale and purchase commitments, net, included in payables 12,439 0
Future contracts | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - futures contracts 13,914 0
Future contracts | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - futures contracts 13,914 0
Derivative liability margin accounts | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - open sale and purchase commitments, net, included in payables 8,182 6,908
Derivative liability margin accounts | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - open sale and purchase commitments, net, included in payables 8,182 6,908
Open sale and purchase commitments | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - open sale and purchase commitments, net, included in payables 1,919 10,989
Open sale and purchase commitments | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative liabilities - open sale and purchase commitments, net, included in payables 1,919 10,989
Former Parent | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Income taxes receivable from Former Parent 203 1,095
Former Parent | Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Income taxes receivable from Former Parent $ 203 $ 1,095