Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Other Benefit Plans (Summary of Stock-Based Compensation) (Details)

v3.19.3
Stock-Based Compensation and Other Benefit Plans (Summary of Stock-Based Compensation) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Total stock-based compensation $ 1,150 $ 973 $ 2,770 $ 3,729
Equity Award [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Total stock-based compensation 180 136 802 683
Liability Award [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Total stock-based compensation $ 970 $ 837 $ 1,968 $ 3,046