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
Sep. 30, 2022
Jun. 30, 2022
Derivatives, Fair Value [Line Items]    
Inventories $ 625,496 $ 741,018
Precious metals held under financing arrangements [1] 49,327 79,766
Inventory and precious metals held under financing arrangements 674,823 820,784
Commemorative coin inventory, held at lower of cost or net realizable value (1,546) (1,434)
Premium on metals position (27,588) (27,059)
Precious metal value not hedged (29,134) (28,493)
Subtotal 645,689 792,291
Commitments at market:    
Open inventory purchase commitments 766,209 681,835
Open inventory sales commitments (605,583) (497,949)
Margin sale commitments (23,878) (26,984)
In-transit inventory no longer subject to market risk (18,265) (13,164)
Unhedgeable premiums on open commitment positions 8,829 12,933
Borrowed precious metals (55,909) (59,417)
Product financing arrangements (167,009) (282,671)
Advances on industrial metals 816 768
Commitments at market (94,790) (184,649)
Precious metal subject to price risk 550,899 607,642
Precious metal subject to derivative financial instruments:    
Market value of derivative financial instruments 543,655 605,039
Net precious metals subject to commodity price risk 7,244 2,603
Precious metals forward contracts at market values    
Precious metal subject to derivative financial instruments:    
Market value of derivative financial instruments 484,585 278,326
Precious metals futures contracts at market values    
Precious metal subject to derivative financial instruments:    
Market value of derivative financial instruments $ 59,070 $ 326,713
[1] Includes amounts of the condensed consolidated variable interest entity, which is presented separately in the table below.