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Subsequent Events (Details) - Subsequent Event
1 Months Ended
Aug. 31, 2019
USD ($)
Margin loan | Revolving Credit Facility  
Subsequent Event [Line Items]  
Line of credit facility, maximum borrowing capacity $ 110,000,000
Debt instrument, term 1 year
$150 Million Term Loan Facility | Term Loan Facility  
Subsequent Event [Line Items]  
Line of credit facility, maximum borrowing capacity $ 150,000,000
Debt instrument, term 15 months
Debt instrument, extension period 9 months