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Debt Obligations - Textual (Details) - Revolving Credit Facility
9 Months Ended
Sep. 30, 2021
USD ($)
Debt Instrument [Line Items]  
Maximum borrowing capacity (up to) $ 600,000,000
Weighted average interest rate 1.21%
Interest expense, debt $ 300,000
LIBOR  
Debt Instrument [Line Items]  
Spread on variable rate 1.10%