v3.26.1
Borrowings - Details 2 (Details) - USD ($)
 3 Months Ended
May 31, 2026
Apr. 10, 2026
Feb. 28, 2026
Sep. 08, 2025
May 31, 2025
Dec. 21, 2022
Dec. 13, 2022
Nov. 10, 2022
Oct. 27, 2022
Sep. 08, 2022
Aug. 15, 2022
May 10, 2022
Apr. 27, 2022
Jan. 19, 2022
Jul. 15, 2021
Mar. 10, 2021
Jan. 28, 2021
Dec. 29, 2020
May 31, 2026
May 31, 2025
Borrowings [Line Items]                                        
Interest expense                                     $ 13,650,283 $ 12,451,865
Financing costs                                     1,713,358
Outstanding fair value                                    
Amortization of deferred financing cost                                     0 100,000
6.25% 2027 Notes [Member]                                        
Borrowings [Line Items]                                        
Interest expense                                     200,000 200,000
Amortization of deferred financing                                     20,000.00 20,000.00
Outstanding borrowings 15,000,000       $ 15,000,000                              
Aggregate principal amount                                 $ 10,000,000 $ 5,000,000    
Net proceeds amount                                 9,700,000      
Deducting underwriting commissions amount                                 $ 300,000      
Fixed interest, description                                   Interest on the 6.25% 2027 Notes is paid quarterly in arrears on February 28, May 31, August 31 and November 30, at a rate of 6.25% per year.    
Offering costs                                   $ 100,000    
Financing costs                                   $ 500,000    
Outstanding fair value     $ 15,000,000                                  
Carrying amount     14,800,000                                  
4.375% 2026 Notes [Member]                                        
Borrowings [Line Items]                                        
Outstanding borrowings 0       175,000,000                              
Aggregate principal amount                             $ 125,000,000 $ 50,000,000        
Principal amount, percentage                               4.375%        
Net proceeds amount                             $ 123,800,000 $ 49,000,000        
Deducting underwriting commissions amount                               1,000,000        
Offering costs incurred                               $ 300,000        
Public offering price percentage                             101.00%          
Underwriting discounts                             $ 2,500,000          
Fixed interest, description                               Interest on the 4.375% 2026 Notes was paid semi-annually in arrears on February 28 and August 28, at a rate of 4.375% per year.        
Interest expense                                     0 1,900,000
Deferred financing costs                                     0 200,000
Amortization of premium on issuance                                     0 60,000.00
Offering costs                             $ 200,000          
8.00% 2027 Notes [Member]                                        
Borrowings [Line Items]                                        
Outstanding borrowings 46,000,000       46,000,000                              
Aggregate principal amount                 $ 40,000,000                      
Principal amount, percentage                 8.00%                      
Net proceeds amount               $ 5,800,000 $ 38,700,000                      
Deducting underwriting commissions amount               200,000                        
Offering costs incurred                 $ 200,000                      
Fixed interest, description                 Interest on the 8.00% 2027 Notes is paid quarterly in arrears on February 28, May 31, August 31 and November 30, at a rate of 8.00% per year                      
Interest expense                                     900,000 900,000
Deferred financing costs                                     90,000.00 90,000.00
Financing costs                 $ 1,700,000                      
Outstanding fair value 46,600,000   46,400,000                               $ 46,600,000  
Additional aggregate principal amount               $ 6,000,000                        
Trading symbol per share (in Dollars per share)                                     $ 25  
Carrying amount 46,000,000   46,000,000                               $ 46,000,000  
Underwriting commissions                 $ 1,300,000                      
4.35% 2027 Notes [Member]                                        
Borrowings [Line Items]                                        
Outstanding borrowings 75,000,000   75,000,000   75,000,000                              
Aggregate principal amount                           $ 75,000,000            
Principal amount, percentage                           4.35%            
Net proceeds amount                           $ 73,000,000            
Deducting underwriting commissions amount                           $ 1,500,000            
Public offering price percentage                           99.317%            
Fixed interest, description                           Interest on the 4.35% 2027 Notes is paid semi-annually in arrears on February 28 and August 28, at a rate of 4.35% per year.            
Interest expense                                     800,000 800,000
Deferred financing costs                                     100,000 100,000
Amortization of premium on issuance                                     30,000.00 30,000.00
Offering costs                           $ 300,000            
Financing costs                           $ 1,800,000            
Outstanding fair value 73,300,000   72,700,000                               73,300,000  
6.00% 2027 Notes [Member]                                        
Borrowings [Line Items]                                        
Amortization of deferred financing                                     10,000.00 10,000.00
Outstanding borrowings 105,500,000       105,500,000                              
Aggregate principal amount                         $ 87,500,000              
Principal amount, percentage                         6.00%              
Net proceeds amount                     $ 7,800,000                  
Offering costs incurred                     $ 200,000   $ 100,000              
Public offering price percentage                     97.80%                  
Fixed interest, description                     Interest on the 6.00% 2027 Notes is paid quarterly in arrears on February 28, May 31, August 31 and November 30, at a rate of 6.00% per year.                  
Interest expense                                     1,600,000 1,600,000
Deferred financing costs                                     200,000 200,000
Financing costs                         3,300,000              
Outstanding fair value 105,000,000   105,000,000                               105,000,000  
Net proceeds                       $ 9,700,000 84,800,000              
Underwriting commissions                       300,000 $ 2,700,000              
Additional aggregate principal amount                     $ 8,000,000 $ 10,000,000                
Trading symbol per share (in Dollars per share)                         $ 25              
Carrying amount     105,500,000                                  
7.00% 2025 Notes [Member]                                        
Borrowings [Line Items]                                        
Interest expense                                       200,000
Amortization of deferred financing                                     0 40,000.00
Outstanding borrowings 0     $ 12,000,000 12,000,000                              
Aggregate principal amount                   $ 12,000,000                    
Principal amount, percentage                   7.00%                    
Net proceeds amount                   $ 11,600,000                    
Underwriting discounts                   $ 400,000                    
Fixed interest, description                   Interest on the 7.00% 2025 Notes was paid quarterly in arrears on February 28, May 31, August 31 and November 30, at a rate of 7.00% per year.                    
Interest expense                                     0  
Financing costs                   $ 50,000.00                    
Offering expenses                   $ 50,000.00                    
Amortization of deferred financing cost                                     0 30,000.00
7.25% 2029 Notes [Member]                                        
Borrowings [Line Items]                                        
Outstanding borrowings 14,100,000                                      
Aggregate principal amount   $ 25,000,000                                    
Principal amount, percentage   7.25%                                    
Net proceeds amount   $ 24,500,000                                    
Fixed interest, description   Interest on the 7.25% 2029 Notes is paid quarterly in arrears on February 28, May 31, August 31 and November 30, at a rate of 7.25% per year.                                    
Interest expense                                     300,000  
Deferred financing costs                                     20,000.00  
Amortization of premium on issuance                                     $ 20,000.00  
Offering costs   $ 200,000                                    
Financing costs   $ 100,000                                    
Trading symbol per share (in Dollars per share)                                     $ 1,000  
Offering price percentage   98.00%                                    
Outstanding amount 25,000,000                                      
8.125% 2027 Notes [Member]                                        
Borrowings [Line Items]                                        
Outstanding borrowings 60,400,000       $ 60,400,000                              
Aggregate principal amount             $ 52,500,000                          
Principal amount, percentage             8.125%                          
Net proceeds amount           $ 7,600,000 $ 50,800,000                          
Deducting underwriting commissions amount           200,000                            
Offering costs incurred             100,000                          
Underwriting discounts             1,600,000                          
Interest expense                                     $ 1,200,000 1,200,000
Deferred financing costs                                     100,000 $ 100,000
Financing costs             $ 2,000,000                          
Outstanding fair value 61,000,000   61,000,000                               $ 61,000,000  
Additional aggregate principal amount           $ 7,875,000                            
Trading symbol per share (in Dollars per share)                                     $ 25  
Carrying amount 60,400,000   $ 60,400,000                               $ 60,400,000  
Debt instrument, description             Interest on the 8.125% 2027 Notes is paid quarterly in arrears on February 28, May 31, August 31 and November 30, at a rate of 8.125% per year.                          
7.25% 2025 Notes [Member]                                        
Borrowings [Line Items]                                        
Notes repaid   7.25%                                    
Maximum [Member]                                        
Borrowings [Line Items]                                        
Outstanding amount 475,000,000                                      
Maximum [Member] | 7.25% 2029 Notes [Member]                                        
Borrowings [Line Items]                                        
Carrying amount 25,000,000                                   25,000,000  
Minimum [Member]                                        
Borrowings [Line Items]                                        
Outstanding amount 350,000,000                                      
Minimum [Member] | 7.25% 2029 Notes [Member]                                        
Borrowings [Line Items]                                        
Carrying amount $ 24,800,000                                   $ 24,800,000