Quarterly report pursuant to Section 13 or 15(d)

Inventories (Narrative) (Details)

v3.7.0.1
Inventories (Narrative) (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Mar. 31, 2017
Jun. 30, 2016
Inventory [Line Items]    
Inventories $ 189,081 $ 185,699
Repurchase arrangements with customers 126,100 92,300
Consignment arrangements with customers 6,800 8,000
Commemorative coins, held at lower of cost or market 41 16
Borrowed precious metals from suppliers 6,400 4,400
Product financing arrangement, restricted 156,500 59,400
Unrealized gains (losses) included in inventory balance 6,700 12,700
Premium on metals position 4,747 4,627
Inventory held for sale    
Inventory [Line Items]    
Inventories $ 49,715 $ 81,006