Annual report pursuant to Section 13 and 15(d)

Debt - Additional Information (Details)

v3.22.2.2
Debt - Additional Information (Details)
12 Months Ended
Jun. 30, 2022
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Jul. 01, 2022
USD ($)
Debt Instrument [Line Items]          
Long-term debt   $ 376,975,000      
Fixed coverage ratio   2.56 3.29    
Leverage ratio   2.79 1.99    
Interest expense, borrowings   $ 7,900,000 $ 2,500,000 $ 3,600,000  
Amortization of deferred issuance costs and debt discounts   200,000 300,000 $ 200,000  
Interest rate swaps          
Debt Instrument [Line Items]          
Interest rate swaps   300,000,000 198,300,000   $ 300,000,000
Fair value of interest rate swaps   24,700,000 (800,000)    
Revolving Credit Facility          
Debt Instrument [Line Items]          
Maximum borrowing capacity $ 325,000,000        
Long-term debt   105,100,000 20,000,000    
Remaining borrowing capacity   208,600,000 193,700,000    
Term Loan          
Debt Instrument [Line Items]          
Long-term debt   $ 271,900,000 $ 197,500,000    
Term Loan | SOFR          
Debt Instrument [Line Items]          
Basis spread on variable rate 0.10%        
Term Loan | Term SOFR          
Debt Instrument [Line Items]          
Basis spread on variable rate 0.10%        
Term Loan | Line of Credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity $ 250,000,000        
Term Loan - 11 Quarters          
Debt Instrument [Line Items]          
Line of credit, principal repayment rate   1.25%      
Term Loan - 8 Quarters          
Debt Instrument [Line Items]          
Line of credit, principal repayment rate   1.875%      
Delayed Draw Term Facility | Line of Credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity $ 50,000,000        
Credit Agreement | Minimum          
Debt Instrument [Line Items]          
Fixed coverage ratio   1.20      
Credit Agreement | Maximum          
Debt Instrument [Line Items]          
Fixed coverage ratio   3.50