v3.26.1
Description of Business - Additional Information (Details)
 1 Months Ended 12 Months Ended
Apr. 30, 2026
USD ($)
Jan. 02, 2026
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shares
Apr. 01, 2025
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Feb. 28, 2025
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shares
Jul. 31, 2026
Jun. 30, 2026
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Apr. 30, 2026
USD ($)
Feb. 28, 2025
USD ($)
shares
Sep. 30, 2024
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Jun. 30, 2024
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Jun. 30, 2022
Jun. 30, 2026
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Product
Coin
Reportable_segments
Jun. 30, 2025
USD ($)
Jun. 30, 2024
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Dec. 31, 2021
May 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Description Of Business [Line Items]                                    
Number of reportable segments | Reportable_segments                       3            
Number of coins and bar products | Coin                       1,000            
Dividend paid                       $ 22,504,000 $ 18,804,000 $ 41,845,000        
Remeasurement gain (loss) on pre-existing equity interests                       4,136,000 (5,143,000) 16,669,000        
Goodwill           $ 250,803,000       $ 199,937,000   $ 250,803,000 228,650,000 $ 199,937,000        
Collectible Card Partners, LLC                                    
Description Of Business [Line Items]                                    
Percentage of ownership percentage                       50.00%            
Collectible Card Partners, LLC | Subsequent Event                                    
Description Of Business [Line Items]                                    
Percentage of ownership percentage         75.00%                          
LPM Group Limited                                    
Description Of Business [Line Items]                                    
Business acquisition, contingent consideration fair value       $ 2,800,000   6,800,000   $ 2,800,000       $ 6,800,000            
Monex Acquisition                                    
Description Of Business [Line Items]                                    
Business acquisition purchase price   $ 49,908,000                                
Business acquisition, cash paid on closing date   $ 19,000,000                                
Business acquisition, number of common stock shares | shares   560,000                                
Business combination common stock issued and delivered on closing date | shares   400,000                                
Business combination, common stock withheld for indemnification obligations | shares   160,000                                
Contingent consideration required to pay upon certain achievement   $ 20,000,000                                
Business acquisition, contingent consideration fair value   5,200,000       400,000           400,000            
Settlement of pre-existing payables due to the Company   6,500,000                                
Consideration acquired   49,908,000                                
Goodwill   $ 16,235,000                                
Monex Acquisition | Existing Customer Relationships                                    
Description Of Business [Line Items]                                    
Useful life   5 years                                
Monex Acquisition | Developed Technology                                    
Description Of Business [Line Items]                                    
Useful life   4 years                                
Spectrum Group International, LLC                                    
Description Of Business [Line Items]                                    
Business acquisition purchase price       103,280,000                            
Business acquisition, cash paid on closing date       $ 46,000,000                            
Business acquisition, number of common stock shares | shares       1,671,654                            
Transaction costs       $ 1,700,000       $ 1,700,000                    
Ownership percentage acquired       100.00%       100.00%                    
Settlement of pre-existing payables due to the Company       $ 419,000                            
Consideration acquired       $ 103,280,000       $ 103,280,000                    
Business combination common stock shares issued and reissuance of treasury stock | shares       1,181,548                            
Business combination consideration shares issued and potential indemnification obligations | shares               66,872                    
Repayment of debt       $ 11,017,000                            
Noncontrolling interest       408,000                            
Goodwill       $ 13,838,000       $ 13,838,000                    
Spectrum Group International, LLC | Existing Customer Relationships                                    
Description Of Business [Line Items]                                    
Useful life       5 years                            
Spectrum Group International, LLC | Developed Technology                                    
Description Of Business [Line Items]                                    
Useful life       4 years                            
Pinehurst                                    
Description Of Business [Line Items]                                    
Business acquisition purchase price       $ 26,711,000                            
Business acquisition, cash paid on closing date       6,500,000                            
Ownership percentage after incremental investment                             49.00%      
Transaction costs       200,000       200,000                    
Promissory note       3,100,000       $ 3,100,000                    
Additional contingent consideration       $ 5,300,000                            
Ownership percentage acquired       51.00%       51.00%                   10.00%
Contingent consideration required to pay upon certain achievement       $ 5,300,000       $ 5,300,000                    
Business acquisition, contingent consideration fair value       700,000   600,000   700,000       $ 600,000 700,000          
Settlement of pre-existing payables due to the Company       (4,325,000)                            
Pre-existing ownership interest       6,900,000                            
Consideration acquired       26,711,000       $ 26,711,000                    
Remeasurement gain (loss) on pre-existing equity interests       $ (7,000,000)                            
Business acquisition percentage of pre-existing ownership interest       49.00%       49.00%                    
Repayment of debt       $ 16,903,000                            
Goodwill       $ 2,753,000       $ 2,753,000                    
Pinehurst | Existing Customer Relationships                                    
Description Of Business [Line Items]                                    
Useful life       4 years                            
Sunshine Minting, Inc.                                    
Description Of Business [Line Items]                                    
Business acquisition purchase price $ 43,151,000                                  
Business acquisition, cash paid on closing date $ 22,000,000                                  
Ownership percentage after incremental investment                               44.90%    
Ownership percentage acquired 55.10%           55.10%                   31.10%  
Pre-existing ownership interest             $ 17,900,000                      
Consideration acquired $ 43,151,000           43,151,000                      
Remeasurement gain (loss) on pre-existing equity interests             $ 4,100,000                      
Business acquisition percentage of pre-existing ownership interest 44.90%           44.90%                      
Noncontrolling interest $ 3,224,000                                  
Goodwill $ 5,959,000           $ 5,959,000                      
Sunshine Minting, Inc. | Building                                    
Description Of Business [Line Items]                                    
Gain (loss) on sale of building           $ 0                        
Sunshine Minting, Inc. | Existing Customer Relationships                                    
Description Of Business [Line Items]                                    
Useful life             15 years                      
Sunshine Minting, Inc. | Proprietary Knowhow                                    
Description Of Business [Line Items]                                    
Useful life             15 years                      
JMB                                    
Description Of Business [Line Items]                                    
Number of products | Product                       8,000            
Goldline, LLC | Precious Metals Purchasing Partners, LLC                                    
Description Of Business [Line Items]                                    
Percentage of ownership percentage                       50.00%            
Silver Gold Bull, Inc.                                    
Description Of Business [Line Items]                                    
Business acquisition, cash paid on closing date                   $ 9,600,000                
Business acquisition, option to purchase additional percentage of the outstanding equity                   8.00% 27.60%     8.00%        
Ownership interest percentage after transaction                   55.40% 47.40%              
Dividends declared                   $ 15,900,000                
Silver Gold Bull, Inc. | Precious Metals Purchasing Partners, LLC                                    
Description Of Business [Line Items]                                    
Percentage of ownership percentage                       50.00%            
Silver Gold Bull, Inc. | SGB Shareholders                                    
Description Of Business [Line Items]                                    
Dividend paid                 $ 7,500,000                  
AMS Holding, LLC                                    
Description Of Business [Line Items]                                    
Business acquisition purchase price     $ 77,087,000                              
Business acquisition, percentage of interests acquired     90.00%                              
Business acquisition, cash paid on closing date     $ 50,958,000                              
Fair value of ownership interest held     6,300,000                              
Transaction costs     $ 2,400,000                              
Ownership percentage acquired     10.00%                              
Business acquisition, contingent consideration fair value     $ 5,900,000                   5,900,000          
Settlement of pre-existing payables due to the Company     13,911,000                              
Consideration acquired     77,087,000                              
Remeasurement gain (loss) on pre-existing equity interests     1,900,000                              
Goodwill     12,122,000                              
Goodwill expected to be deductible for tax purposes     4,300,000                              
AMS Holding, LLC | Upon Achievement of Financial Targets when Certain Inventory is Sold                                    
Description Of Business [Line Items]                                    
Business acquisition, contingent consideration fair value     3,000,000                              
Additional contingent consideration to be paid     $ 3,000,000                              
AMS Holding, LLC | Existing Customer Relationships                                    
Description Of Business [Line Items]                                    
Useful life     5 years                              
AMS Holding, LLC | Accrued Liabilities, Current                                    
Description Of Business [Line Items]                                    
Business acquisition, contingent consideration fair value                         $ 3,200,000          
Maximum | Silver Gold Bull, Inc.                                    
Description Of Business [Line Items]                                    
Business acquisition, percentage of interests acquired                     75.00%              
Maximum | AMS Holding, LLC | Upon Achievement of Certain Performance Benchmarks                                    
Description Of Business [Line Items]                                    
Business acquisition, contingent consideration fair value     $ 9,000,000                              
Additional contingent consideration to be paid     $ 9,000,000