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

Goodwill and Intangible Assets - Additional Information (Details)

v3.25.2
Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Dec. 31, 2018
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Apr. 01, 2025
Feb. 28, 2025
Jun. 21, 2024
Mar. 31, 2024
Feb. 26, 2024
Oct. 31, 2022
Mar. 31, 2021
Aug. 31, 2017
Aug. 31, 2016
Finite-Lived Intangible Assets [Line Items]                          
Goodwill   $ 228,650 $ 199,937 $ 100,943                  
Amortization expense related to intangible assets   18,300 8,600 $ 10,300                  
Goodwill and intangible asset impairment $ 2,700                        
Intangible assets   $ 137,314 101,663                    
JMB                          
Finite-Lived Intangible Assets [Line Items]                          
Percentage of investments in privately-held entities accounted under equity method                     20.50%    
JMB                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired                     $ 98,000    
Goodwill                     $ 92,100    
Intangible assets               $ 8,500   $ 4,500      
Pinehurst                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired           $ 2,000              
Goodwill           $ 2,800              
A Mark Precious Metals, Inc | JMB                          
Finite-Lived Intangible Assets [Line Items]                          
Percentage of ownership owned by parent                     100.00%    
A Mark Precious Metals, Inc | Pinehurst                          
Finite-Lived Intangible Assets [Line Items]                          
Percentage of ownership owned by parent           100.00%              
SilverTowne Mint                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired                         $ 2,500
Goodwill                         $ 4,300
Goldline, LLC                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired                       $ 5,000  
Goodwill                       $ 1,400  
LPM                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired                 $ 10,300        
Goodwill                 $ 21,034        
SGB                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired     28,800                    
Goodwill     $ 78,000       $ 77,960            
SGI                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired           $ 19,000              
Goodwill           $ 13,800              
AMS                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired         $ 33,000                
Goodwill         $ 12,122