XML 44 R47.htm IDEA: XBRL DOCUMENT v3.20.1
Long-term Debt (Summary of Annual Aggregate Maturities of Debts, Net of Debt Issuance Costs) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Long-term Debt [Abstract]    
2018  
2019  
2020  
2021 63,000  
2022  
Thereafter  
Total debt obligations $ 63,000 $ 53,000