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Debt - Narrative (Details)
12 Months Ended 60 Months Ended
Feb. 28, 2023
Oct. 27, 2021
USD ($)
May 31, 2024
USD ($)
Oct. 27, 2026
May 31, 2023
USD ($)
Debt Instrument [Line Items]          
Debt     $ 6,000,000.0   $ 6,000,000.0
Loan Agreement          
Debt Instrument [Line Items]          
Standby letters of credit     (400,000)    
Line of Credit          
Debt Instrument [Line Items]          
Debt     6,000,000.0   6,000,000.0
Line of Credit | Unsecured Debt          
Debt Instrument [Line Items]          
Borrowing capacity     16,200,000    
Remaining borrowing capacity     10,200,000    
Debt     $ 6,000,000.0    
Line of Credit | Secured Debt          
Debt Instrument [Line Items]          
Line of Credit Facility, Expiration Period     364 days    
Revolving Credit Facility          
Debt Instrument [Line Items]          
Outstanding borrowings     $ 0    
Domestic Line of Credit          
Debt Instrument [Line Items]          
Standby letters of credit     (3,600,000)    
Domestic Line of Credit | Unsecured Debt          
Debt Instrument [Line Items]          
Borrowing capacity     10,000,000.0    
Outstanding borrowings     0   0
Remaining borrowing capacity     $ 6,400,000    
Line of Credit Facility, Expiration Period     365 days    
Standby Letters of Credit          
Debt Instrument [Line Items]          
Term of debt instrument     1 year    
Open standby letters of credit     $ 4,000,000.0   $ 3,800,000
Loan Agreement          
Debt Instrument [Line Items]          
Term of debt instrument       5 years  
Debt instrument, restrictive covenant, maximum consolidated net leverage ratio   2.75      
Line of credit facility, commitment fee percentage     0.20%    
Maximum borrowing capacity   $ 300,000,000.0      
Debt Instrument, Available Increase in Borrowing Capacity   $ 150,000,000.0      
Loan Agreement | Minimum          
Debt Instrument [Line Items]          
Line of credit facility, commitment fee percentage       0.20%  
Loan Agreement | Maximum          
Debt Instrument [Line Items]          
Line of credit facility, commitment fee percentage       0.30%  
Loan Agreement | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate          
Debt Instrument [Line Items]          
Variable rate 0.10% 1.00% 1.35%    
Loan Agreement | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum          
Debt Instrument [Line Items]          
Variable rate 1.35%        
Loan Agreement | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum          
Debt Instrument [Line Items]          
Variable rate 1.75%        
Loan Agreement | Federal Funds Rate          
Debt Instrument [Line Items]          
Variable rate   0.50%      
Loan Agreement | Base Rate          
Debt Instrument [Line Items]          
Variable rate     0.35%    
Loan Agreement | Base Rate | Minimum          
Debt Instrument [Line Items]          
Variable rate   0.35%      
Loan Agreement | Base Rate | Maximum          
Debt Instrument [Line Items]          
Variable rate   0.75%      
Loan Agreement | Swingline Facility          
Debt Instrument [Line Items]          
Maximum borrowing capacity   $ 15,000,000.0      
Loan Agreement | Letter of Credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity   $ 50,000,000.0