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Transactions with Affiliates (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]      
Interest income on DIP financing     $ 100
Affiliated Entities      
Related Party Transaction [Line Items]      
Affiliate billings to us $ 83 $ 75 81
Billings to affiliates 5 6 4
Rentals paid to affiliate 487 487 583
Fees paid to Bencap $ 0 $ 0 $ 108