XML 49 R39.htm IDEA: XBRL DOCUMENT v3.21.2
Fair Value Considerations - Narrative (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Oberland Facility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value of long-term debt $ 50,663 $ 36,855