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Line of Credit (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Sep. 30, 2021
Oct. 04, 2017
Line of Credit | Credit Agreement | Revolving Credit Facility      
Line of Credit Facility [Line Items]      
Line of credit, maximum borrowing capacity $ 75.0    
Outstanding line of credit 0.0 $ 0.0  
Deferred finance costs $ 0.1 $ 0.1  
Secured Debt | Senior Secured Term Loan Facility      
Line of Credit Facility [Line Items]      
Face amount     $ 200.0