v3.26.3
COMMITMENTS AND CONTINGENCIES - Narrative (Details)
 3 Months Ended 6 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Mar. 31, 2026
USD ($)
Dec. 31, 2023
ft²
Mar. 31, 2021
Gain Contingencies [Line Items]              
Expiring letters of credit $ 4,500,000   $ 4,500,000        
Lease extension             3 years
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets   Other assets   Other assets    
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities   Other liabilities   Other liabilities    
Lease expense $ 100,000 $ 100,000 $ 300,000 $ 300,000      
Operating lease asset 3,600,000   3,600,000   $ 3,700,000    
Operating lease liability $ 4,800,000   $ 4,800,000   $ 5,000,000.0    
Remaining lease term (in years) 9 years   9 years        
Discount rate 7.37%   7.37%        
Undiscounted excess amount not disclosed $ 0   $ 0        
Office Space              
Gain Contingencies [Line Items]              
Area of additional office space | ft²           7,100  
Letters of Credit Issued and Outstanding              
Gain Contingencies [Line Items]              
Expiring letters of credit 900,000   900,000        
Letters of credit drawn 0   0        
Letters of Credit Issued and Outstanding | February 2027              
Gain Contingencies [Line Items]              
Expiring letters of credit 400,000   400,000        
Letters of Credit Issued and Outstanding | March 2027              
Gain Contingencies [Line Items]              
Expiring letters of credit 300,000   300,000        
Letters of Credit Issued and Outstanding | April 2027              
Gain Contingencies [Line Items]              
Expiring letters of credit $ 200,000   $ 200,000