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Debt Facilities - Narrative (Details)
2 Months Ended 3 Months Ended 6 Months Ended
Dec. 15, 2022
USD ($)
Jan. 31, 2020
USD ($)
Jan. 24, 2020
USD ($)
Dec. 15, 2022
Mar. 31, 2022
Mar. 31, 2023
USD ($)
extension
Mar. 31, 2022
USD ($)
Sep. 30, 2022
USD ($)
Debt Instrument [Line Items]                
Payments on term debt agreement           $ 350,000,000 $ 10,000,000  
Term Loan Facility                
Debt Instrument [Line Items]                
Aggregate principal amount     $ 400,000,000          
Redemption percentage     1.25%          
Debt issuance costs     $ 2,200,000         $ 200,000
Long-Term Debt               $ 350,000,000
Payments on term debt agreement $ 350,000,000              
Interest Expense, Long-Term Debt $ 3,000,000              
Line of Credit Facility, Interest Rate During Period       4.072% 1.282%   1.282%  
Term Loan Facility | London Interbank Offered Rate (LIBOR) | Minimum                
Debt Instrument [Line Items]                
Basis spread on variable rate     1.125%          
Term Loan Facility | London Interbank Offered Rate (LIBOR) | Maximum                
Debt Instrument [Line Items]                
Basis spread on variable rate     1.75%          
Revolving Credit Facility                
Debt Instrument [Line Items]                
Aggregate principal amount   $ 350,000,000            
Conditional increase in borrowing capacity   $ 150,000,000            
Number of extensions | extension           2    
Length of extension period           1 year    
Long-term line of credit           $ 0    
Outstanding line of credit balance           $ 350,000,000    
Revolving Credit Facility | Minimum                
Debt Instrument [Line Items]                
Commitment fee percentage   0.125%            
Revolving Credit Facility | Maximum                
Debt Instrument [Line Items]                
Commitment fee percentage   0.30%            
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum                
Debt Instrument [Line Items]                
Basis spread on variable rate   1.125%            
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum                
Debt Instrument [Line Items]                
Basis spread on variable rate   1.75%            
Revolving Credit Facility | Alternate Base Rate | Minimum                
Debt Instrument [Line Items]                
Basis spread on variable rate   0.125%            
Revolving Credit Facility | Alternate Base Rate | Maximum                
Debt Instrument [Line Items]                
Basis spread on variable rate   0.75%