v3.26.3
VARIABLE INTEREST ENTITIES - Additional information (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
May 26, 2026
USD ($)
Apr. 14, 2026
USD ($)
Aug. 14, 2025
USD ($)
Aug. 31, 2026
USD ($)
Feb. 28, 2026
USD ($)
Mar. 31, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Mar. 10, 2025
USD ($)
Jan. 06, 2025
Aug. 14, 2024
May 03, 2024
company
Variable Interest Entity [Line Items]                          
Variable interest entity, primary beneficiary, maximum loss exposure, amount                 $ 1,835        
Number of brand apparel operating companies | company                         2
Repayments of notes payable [1]             $ 893 $ 13,437          
Noncontrolling interest, estimated recognized loss amount                   $ 1,575      
B. Riley Securities Holdings, Inc.                          
Variable Interest Entity [Line Items]                          
Ownership, percentage             93.30%   90.70%        
B. Riley Securities Holdings, Inc. | Capital Markets segment                          
Variable Interest Entity [Line Items]                          
Ownership, percentage                   0.60%      
Investor | BRC Partners Opportunity Fund, LP | BRC Trust                          
Variable Interest Entity [Line Items]                          
Ownership, percentage                     13.30%    
Related Party | BRC Partners Opportunity Fund, LP | BRC Trust                          
Variable Interest Entity [Line Items]                          
Ownership, percentage                     58.20%    
Equity Securities | Enovum Loan | Non Affiliate                          
Variable Interest Entity [Line Items]                          
Proceeds from collection of finance receivables       $ 21,652                  
Purchase consideration paid $ 19,400                        
Equity Securities | Enovum Loan | Non Affiliate                          
Variable Interest Entity [Line Items]                          
Principal amount $ 20,000                        
Bicoastal Alliance, LLC                          
Variable Interest Entity [Line Items]                          
Rate of equity interests                       50.00% 50.00%
Repayments of notes payable     $ 700                    
Gain on disposition of business               $ 28,411          
Variable Interest Entity, Not Primary Beneficiary                          
Variable Interest Entity [Line Items]                          
Purchase of equity investments   $ 750                      
Maximum exposure to loss             $ 686            
Variable Interest Entity, Not Primary Beneficiary | Special Purpose Entity                          
Variable Interest Entity [Line Items]                          
Rate of equity interests   7.00%                      
Variable Interest Entity, Not Primary Beneficiary | Preferred Stock and Limited Partnership Interests of Certain Entities                          
Variable Interest Entity [Line Items]                          
Maximum exposure to loss             $ 972            
Freedom VCM, Inc                          
Variable Interest Entity [Line Items]                          
Proceeds from collection of finance receivables         $ 1,855 $ 1,855              
[1] Amounts presented contain results from both continuing and discontinued operations. Refer to Note 5 - Discontinued Operations and Assets Held for Sale for additional information regarding cash flow associated with the results of discontinued operations.