Quarterly report [Sections 13 or 15(d)]

Goodwill and Intangible Assets - Additional Information (Details)

v3.25.3
Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2018
Jun. 30, 2025
Apr. 01, 2025
Feb. 28, 2025
Jun. 30, 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 $ 228,696     $ 228,650                  
Amortization expense related to intangible assets 5,200 $ 3,900                      
Goodwill and intangible asset impairment     $ 2,700                    
Intangible assets $ 132,107     $ 137,314                  
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%              
Silver Towne 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                 $ 21,000        
SGB                          
Finite-Lived Intangible Assets [Line Items]                          
Intangibles acquired             $ 28,800            
Goodwill             $ 78,000            
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         $ 12,100