Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Stock-Based Compensation and Other Benefit Plans (Summary of Non Vested Awards) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Restricted Stock [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Outstanding, Beginning Balance 1,155,000  
Awards granted 526,000  
Awards vested (125,000)  
Outstanding, Ending Balance 1,467,000  
Weighted Average Grant Price, Outstanding, Beginning Balance $ 1.30  
Weighted Average Grant Price, Awards granted 3.14  
Weighted Average Grant Price, Awards vested (1.37)  
Weighted Average Grant Price, Unvested awards forfeited 1.98  
Weighted Average Grant Price, Outstanding, Ending Balance $ 1.91  
Stock Appreciation Rights (SARs) [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Outstanding, Beginning Balance 2,940,000  
Awards granted 0 0
Awards exercised (552,000)  
Unvested awards forfeited (14,000)  
Outstanding, Ending Balance 2,374,000  
Outstanding, Exercisable 2,027,000  
Weighted Average Grant Price, Outstanding, Beginning Balance $ 1.33  
Weighted Average Grant Price, Awards exercised 1.17  
Weighted Average Grant Price, Unvested awards forfeited 2.33  
Weighted Average Grant Price, Outstanding, Ending Balance 1.36  
Weighted Average Exercise Price Per Share, Exercisable $ 1.23  
Term (in years), Outstanding 2 years 7 days  
Term (in years), Exercisable 1 year 10 months 9 days  
Aggregate Intrinsic Value, Outstanding $ 2,151  
Aggregate Intrinsic Value, Exercisable $ 2,082