Quarterly report pursuant to Section 13 or 15(d)

Hedging Transactions (Hedging of Precious Metals Inventory) (Details)

v2.4.0.8
Hedging Transactions (Hedging of Precious Metals Inventory) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Jun. 30, 2013
Derivatives, Fair Value [Line Items]    
Inventory $ 160,029 $ 162,378
Premium on metals position (3,336) (1,787)
Subtotal 156,693 160,591
Commitments at market    
Open inventory purchase commitments 391,320 461,883
Open inventory sales commitments (138,805) (272,044)
Margin sales commitments (15,765) (13,651)
In-transit inventory no longer subject to market risk (15,522) (24,221)
Unhedgable premiums on open commitment positions 1,601 2,107
Inventory borrowed from suppliers (11,226) (20,117)
Product financing obligation (25,506) (38,554)
Advances on industrial metals (3,254) 33
Inventory subject to price risk 339,536 256,027
Inventory subject to derivative financial instruments    
Market value of inventory subject to derivative financial instruments 339,656 256,271
Net inventory subject to price risk 120 244
Precious metals forward contracts at market values
    
Inventory subject to derivative financial instruments    
Market value of inventory subject to derivative financial instruments 167,928 84,999
Precious metals futures contracts at market values
    
Inventory subject to derivative financial instruments    
Market value of inventory subject to derivative financial instruments $ 171,728 $ 171,272