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LONG-TERM DEBT - Credit Agreement (Details) - USD ($)
3 Months Ended 6 Months Ended
Apr. 30, 2021
Jul. 31, 2022
Jan. 31, 2022
Jul. 31, 2021
Apr. 09, 2021
Jun. 29, 2017
Credit Agreement            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity           $ 725,000,000
Term Loan            
Debt Instrument [Line Items]            
Debt face amount           425,000,000
Long-term debt outstanding $ 100,000,000 $ 100,000,000 $ 100,000,000      
Unamortized debt discount       $ 200,000   $ 500,000
Required quarterly principal payment 1,100,000          
Repayments of lines of credit $ 309,000,000          
Deferred debt issuance costs       $ 1,800,000    
Interest rate at end of period (as a percent)   3.80% 2.10%      
Effective interest rate (as a percent)   4.00%        
Revolving Credit Facility            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity         $ 300,000,000  
Deferred debt issuance costs         $ 1,300,000  
Consolidated total debt to consolidated EBITDA ratio   4.50        
Eurodollar Loans | Variable Rate Based on Eurodollar Rate | Term Loan            
Debt Instrument [Line Items]            
Interest rate margin (as a percent)   2.25%        
Eurodollar Loans | Variable Rate Based on Eurodollar Rate | 2017 Term Loan - Following January 2018 Amendment            
Debt Instrument [Line Items]            
Interest rate margin (as a percent)   2.00%        
ABR Rate Loans | Variable Rate Based on ABR Rate | Term Loan            
Debt Instrument [Line Items]            
Interest rate margin (as a percent)   1.25%        
ABR Rate Loans | Variable Rate Based on ABR Rate | 2017 Term Loan - Following January 2018 Amendment            
Debt Instrument [Line Items]            
Interest rate margin (as a percent)   1.00%