Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Additional Information (Details)

v3.21.2
Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2018
Jun. 30, 2021
Mar. 31, 2021
Aug. 31, 2017
Aug. 31, 2016
Finite-Lived Intangible Assets [Line Items]              
Goodwill $ 100,943     $ 100,943      
Amortization expense related to intangible assets $ 7,900 $ 200          
Goodwill and intangible asset impairment     $ 2,700        
Minimum              
Finite-Lived Intangible Assets [Line Items]              
Percentage of investments in privately-held entities accounted under equity method 20.00%            
Estimated useful lives of intangibles 1 year            
Maximum              
Finite-Lived Intangible Assets [Line Items]              
Percentage of investments in privately-held entities accounted under equity method 50.00%            
Estimated useful lives of intangibles 15 years            
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  
JMB              
Finite-Lived Intangible Assets [Line Items]              
Intangibles acquired         $ 98,000    
Goodwill         $ 92,100    
Percentage of investments in privately-held entities accounted under equity method         20.50%    
JMB | A Mark Precious Metals, Inc              
Finite-Lived Intangible Assets [Line Items]              
Percentage of ownership owned by parent         100.00%