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Debt - Interest expense and other financing costs consisted of the following (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Interest Expense and Financing Costs of Debt [Line Items]    
Interest expense $ 6,455 $ 5,942
Interest prepayment fees 2,500  
Financing fees amortization 1,272 320
Interest expense and other financing costs $ 10,227 $ 6,262