Earnings per Share ("EPS") (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Numerator:    
Net income $ (17,276) $ 22,467
Denominator:    
Weighted average shares outstanding 79,481,462 79,658,583
Effect of dilutive securities (in shares) 184,312 184,995
Adjusted weighted average shares outstanding 79,665,774 79,843,578
Basic EPS (in dollars per share) $ (0.22) $ 0.28
Diluted EPS (in dollars per share) $ (0.22) $ 0.28