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Debt and Line of Credit (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 01, 2022
Sep. 30, 2022
Sep. 30, 2021
Oct. 04, 2017
Debt Instrument [Line Items]        
Loss on extinguishment of debt   $ 632    
Secured Debt | Senior Secured Term Loan Facility        
Debt Instrument [Line Items]        
Face amount       $ 200,000
Issue amount       $ 197,600
Percentage of par (as a percent)       98.80%
Discount       $ 2,400
Discount percentage (as a percent)       1.20%
Weighted average interest rate (as a percent)   2.70% 2.80%  
Interest expense   $ 500 $ 1,700  
Debt extinguished $ 49,700      
Loss on extinguishment of debt $ 600      
Deferred financing costs   $ 0 $ 300