Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Change in Fair Value) (Details)

v3.20.2
Fair Value Measurements (Change in Fair Value) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Change in fair value $ (332) $ 973 $ (730) $ (752)
Derivative        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Change in fair value $ (1)