Annual report pursuant to Section 13 and 15(d)

Inventories (Summary of Inventories) (Details)

v3.5.0.2
Inventories (Summary of Inventories) (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Jun. 30, 2015
Inventory [Line Items]    
Inventories $ 185,699 $ 152,076
Restricted inventories 59,358 39,425
Restricted and Nonrestricted Inventory, Net 245,057 191,501
Inventory held for sale    
Inventory [Line Items]    
Inventories 81,006 86,353
Repurchase arrangements with customers    
Inventory [Line Items]    
Inventories 92,283 49,117
Consignment arrangements with customers    
Inventory [Line Items]    
Inventories 8,042 5,588
Commemorative coins, held at lower of cost or market    
Inventory [Line Items]    
Inventories 16 1,518
Borrowed precious metals from suppliers    
Inventory [Line Items]    
Inventories 4,352 9,500
Product financing arrangement, restricted    
Inventory [Line Items]    
Restricted inventories $ 59,358 $ 39,425