Quarterly report pursuant to Section 13 or 15(d)

Inventories - Additional Information (Details)

v3.20.1
Inventories - Additional Information (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Mar. 31, 2020
Jun. 30, 2019
Inventory [Line Items]    
Inventory held for sale [1] $ 291,003 $ 198,356
Precious metals inventory subject to repurchase arrangements 54,500 65,500
Consignment arrangements with customers 200 4,900
Commemorative coin inventory, held at lower of cost or net realizable value 80 17
Product financing arrangement, restricted 122,100 94,500
Unrealized gains (losses) included in inventory balance 2,400 8,800
Premium on metals position 6,858 4,424
Inventories    
Inventory [Line Items]    
Borrowed precious metals from suppliers 18,800 21,800
Inventory held for Sale    
Inventory [Line Items]    
Inventory held for sale $ 217,356 $ 106,165
[1] Includes amounts of the consolidated variable interest entity, which is presented separately in the table below.