Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Transactions - Summary of Hedging Activities Shows Precious Metal Commodity Inventory Position Net of Open Sale and Purchase Commitments (Details)

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Derivative Instruments and Hedging Transactions - Summary of Hedging Activities Shows Precious Metal Commodity Inventory Position Net of Open Sale and Purchase Commitments (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Jun. 30, 2023
Derivatives, Fair Value [Line Items]    
Inventories $ 1,110,350 $ 981,643
Precious metals held under financing arrangements [1] 19,520 25,530
Inventory and precious metals held under financing arrangements 1,129,870 1,007,173
Commemorative coin inventory, held at lower of cost or net realizable value (732) (948)
Premium on metals position (34,760) (29,358)
Precious metal value not hedged (35,492) (30,306)
Commitments at market:    
Open inventory purchase commitments 797,574 921,108
Open inventory sales commitments (320,679) (587,392)
Margin sale commitments (20,241) (17,682)
In-transit inventory no longer subject to market risk (7,035) (5,505)
Unhedgeable premiums on open commitment positions 12,887 11,224
Borrowed precious metals (24,215) (21,642)
Product financing arrangements (518,613) (335,831)
Advances on industrial metals 1,007 698
Commitments at market (79,315) (35,022)
Precious metal subject to price risk 1,015,063 941,845
Precious metal subject to derivative financial instruments:    
Market value of derivative financial instruments 1,012,452 938,233
Net precious metals subject to commodity price risk 2,611 3,612
Precious metals forward contracts at market values    
Precious metal subject to derivative financial instruments:    
Market value of derivative financial instruments 854,084 767,767
Precious metals futures contracts at market values    
Precious metal subject to derivative financial instruments:    
Market value of derivative financial instruments $ 158,368 $ 170,466
[1] Includes amounts of the consolidated variable interest entity as of June 30, 2023, which are presented separately in the table below.