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

Debt - Narrative (Details)

v3.25.2
Debt - Narrative (Details) - USD ($)
 12 Months Ended
Aug. 06, 2024
Feb. 05, 2024
Oct. 26, 2022
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Aug. 05, 2024
Dec. 29, 2021
Apr. 29, 2021
Feb. 03, 2021
Debt Instrument [Line Items]                    
Payment of debt issuance costs       $ 1,627,000 $ 0 $ 99,000        
Debt issuance costs, net       2,313,000 2,510,000          
Revolving Credit Facility | Revolver | Line of Credit                    
Debt Instrument [Line Items]                    
Maximum borrowing capacity $ 425,000,000             $ 525,000,000   $ 100,000,000
Maximum borrowing capacity, including accordion feature               600,000,000 $ 400,000,000 $ 200,000,000
Maximum borrowing capacity, accordion feature 75,000,000             $ 75,000,000 75,000,000  
Annual investment threshold 25,000,000 $ 75,000,000         $ 75,000,000   $ 20,000,000  
Maximum borrowing capacity, increase (decrease) (100,000,000)                  
Excess cash threshold $ 40,000,000                  
Payment of debt issuance costs       6,564,000            
Balance drawn       $ 411,000,000 $ 386,000,000          
Unused line fee       0.35% 0.35%          
Interest rate       8.17% 7.71%          
Collateral, threshold amount to grant security interest       $ 5,000,000            
Remaining borrowing capacity       $ 14,000,000            
Revolving Credit Facility | Revolver | Line of Credit | Election Two | SOFR                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate       1.00%            
Revolving Credit Facility | Revolver | Line of Credit | Election Two | Federal Funds Rate                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate       0.50%            
Revolving Credit Facility | Revolver | Line of Credit | Minimum                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate 1.00% 1.50% 1.50%              
Unused line fee       0.15%            
Revolving Credit Facility | Revolver | Line of Credit | Minimum | Election One | SOFR                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate       1.50%            
Revolving Credit Facility | Revolver | Line of Credit | Minimum | Election Two | Base Rate                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate       0.50%            
Revolving Credit Facility | Revolver | Line of Credit | Maximum                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate 3.75% 2.75% 2.25%              
Unused line fee       0.35%            
Revolving Credit Facility | Revolver | Line of Credit | Maximum | Election One | SOFR                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate       3.75%            
Revolving Credit Facility | Revolver | Line of Credit | Maximum | Election Two | Base Rate                    
Debt Instrument [Line Items]                    
Credit agreement, basis spread on variable rate       2.75%