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BORROWING ARRANGEMENTS (Details)
3 Months Ended
Apr. 30, 2023
USD ($)
facility
May 01, 2022
USD ($)
Debt Instrument [Line Items]    
Outstanding letter of credit facilities $ 700,000  
Standby Letters of Credit    
Debt Instrument [Line Items]    
Amount issued but undrawn under credit facility $ 11,200,000  
Letter of Credit Facility Renewed and Extended    
Debt Instrument [Line Items]    
Number of facilities | facility 3  
Maximum borrowing capacity of letter of credit after renewal $ 35,000,000  
Letter Of Credit Facility Maturing August 2023    
Debt Instrument [Line Items]    
Number of facilities | facility 2  
Maximum borrowing capacity of letter of credit after renewal $ 30,000,000  
Letter Of Credit Facility Maturing September 2026    
Debt Instrument [Line Items]    
Number of facilities | facility 1  
Maximum borrowing capacity of letter of credit after renewal $ 5,000,000  
Unsecured Revolving Line of Credit    
Debt Instrument [Line Items]    
Current borrowing capacity 500,000,000  
Additional borrowing capacity 250,000,000  
Maximum borrowing capacity including additional borrowing capacity 750,000,000  
Borrowings under revolving line of credit $ 0 $ 0
Unsecured Revolving Line of Credit | Margin Based on Leverage Ratio | Minimum    
Debt Instrument [Line Items]    
Leverage ratio 0.91%  
Unsecured Revolving Line of Credit | Margin Based on Leverage Ratio | Maximum    
Debt Instrument [Line Items]    
Leverage ratio 1.775%  
Unsecured Revolving Line of Credit | Base Rate | Minimum    
Debt Instrument [Line Items]    
Leverage ratio 0.00%  
Unsecured Revolving Line of Credit | Base Rate | Maximum    
Debt Instrument [Line Items]    
Leverage ratio 0.775%