Annual report [Section 13 and 15(d), not S-K Item 405]

Description of Business - Schedule of Business Acquisitions, Purchase Price and Fair values of Assets Acquired and Liabilities Assumed (Details)

v3.25.2
Description of Business - Schedule of Business Acquisitions, Purchase Price and Fair values of Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Apr. 01, 2025
Jan. 31, 2025
Jun. 21, 2024
Feb. 26, 2024
Feb. 28, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2023
Business Combination, Consideration Transferred [Abstract]                
Noncontrolling interest             $ 408  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]                
Goodwill           $ 199,937 228,650 $ 100,943
SGI                
Business Combination, Consideration Transferred [Abstract]                
Cash         $ 46,000      
Common stock         43,618      
Hold-back consideration - common stock         1,818      
Repayment of debt         11,017      
Settlement of pre-existing payables due to A-Mark         419      
Noncontrolling interest         408   408  
Total purchase price         103,280      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Cash         11,264      
Receivables, net         25,164      
Inventories         102,587      
Other current assets         4,559      
Property, plant, and equipment, net         6,108      
Operating lease right of use assets         12,047      
Other long-term assets         2,698      
Total identifiable assets acquired         183,427      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]                
Product financing arrangements         (52,020)      
Accounts payable and other payables         (9,789)      
Deferred revenue and other advances         (9,381)      
Accrued liabilities         (9,935)      
Operating lease liability         (12,347)      
Other liabilities         (513)      
Net identifiable assets acquired         89,442      
Goodwill         13,838      
Total purchase price         103,280      
SGI | Developed Technology                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets         1,500      
SGI | Existing Customer Relationships                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets         12,000      
SGI | Trade Names [Member]                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Trade names         4,000      
SGI | In-process Research and Development                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets         1,500      
Pinehurst                
Business Combination, Consideration Transferred [Abstract]                
Cash         6,500      
Pre-existing equity method investment   $ 6,900     6,933      
Repayment of debt         16,903      
Contingent consideration         700   800  
Settlement of pre-existing receivables due from A-Mark         (4,325)      
Total purchase price         26,711      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Cash         4,334      
Receivables, net         4,481      
Inventories         17,767      
Other current assets         1,962      
Property, plant, and equipment, net         763      
Operating lease right of use assets         1,734      
Total identifiable assets acquired         33,041      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]                
Accounts payable and other payables         (2,380)      
Deferred revenue and other advances         (1,655)      
Accrued liabilities         (210)      
Operating lease liability         (1,734)      
Other liabilities         (3,104)      
Net identifiable assets acquired         23,958      
Goodwill         2,753      
Total purchase price         26,711      
Pinehurst | Existing Customer Relationships                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets         1,000      
Pinehurst | Trade Names [Member]                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Trade names         1,000      
AMS                
Business Combination, Consideration Transferred [Abstract]                
Cash $ 50,958              
Pre-existing equity method investment 6,318              
Contingent consideration 5,900           5,900  
Settlement of pre-existing liabilities due to A-Mark 13,911              
Total purchase price 77,087              
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Cash 1,172              
Receivables, net 10,755              
Inventories 28,708              
Other current assets 1,602              
Property, plant, and equipment, net 12,306              
Operating lease right of use assets 511              
Other long-term assets 135              
Total identifiable assets acquired 88,189              
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]                
Accounts payable and other payables (3,962)              
Deferred revenue and other advances (2,426)              
Accrued liabilities (6,680)              
Operating lease liability (514)              
Other liabilities (9,642)              
Net identifiable assets acquired 64,965              
Goodwill 12,122              
Total purchase price 77,087              
AMS | Existing Customer Relationships                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets 28,000              
AMS | Trade Names [Member]                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Trade names $ 5,000              
LPM                
Business Combination, Consideration Transferred [Abstract]                
Cash       $ 37,506        
Contingent consideration       2,800        
Common stock       3,514        
Contingent consideration       2,800 $ 2,800 2,400 1,200  
Settlement of pre-existing payables due to A-Mark       398        
Settlement of pre-existing liabilities due to A-Mark       400        
Total purchase price       44,218        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Cash       5,033        
Receivables, net       4,105        
Inventories       16,807        
Other current assets       515        
Property, plant, and equipment, net       1,306        
Other long-term assets       956        
Total identifiable assets acquired       39,022        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]                
Accounts payable and other payables       (526)     $ (500)  
Deferred revenue and other advances       (11,361)        
Accrued liabilities       (1,729)        
Other liabilities       (2,222)        
Net identifiable assets acquired       23,184        
Goodwill       21,034        
Total purchase price       44,218        
LPM | Existing Customer Relationships                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets       6,800        
LPM | Trade Names [Member]                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Trade names       $ 3,500        
SGB                
Business Combination, Consideration Transferred [Abstract]                
Cash     $ 9,600     9,600    
Pre-existing equity method investment     56,848          
Option to acquire additional equity interest     2,300          
Settlement of pre-existing payables due to A-Mark     9,418          
Noncontrolling interests     50,652          
Total purchase price     128,818          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Cash     10,203          
Receivables, net     10,968          
Inventories     45,936          
Other current assets     2,246          
Property, plant, and equipment, net     2,071          
Other long-term assets     5,809          
Total identifiable assets acquired     106,045          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]                
Product financing arrangements     (24,372)          
Accounts payable and other payables     (7,205)          
Deferred revenue and other advances     (5,085)          
Accrued liabilities     (1,231)          
Notes payable     (8,367)          
Deferred tax liability     (6,624)          
Other liabilities     (2,303)          
Net identifiable assets acquired     50,858          
Goodwill     77,960     $ 78,000    
Total purchase price     128,818          
SGB | Developed Technology                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets     9,300          
SGB | Existing Customer Relationships                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Intangible assets     13,000          
SGB | Trade Names [Member]                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]                
Trade names     $ 6,512