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Revolving Credit Facility - Narrative (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 05, 2021
Sep. 30, 2020
Sep. 28, 2017
Line of Credit Facility [Line Items]        
Outstanding borrowings $ 97,500   $ 101,000  
Line of Credit | Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Borrowing base   $ 135,000   $ 25,000
Maximum facility amount       $ 500,000
Total commitments   $ 135,000    
Weighted average interest rate 3.10%   3.17%  
Available under the credit facility $ 37,500   $ 31,500