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Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Net income $ 14,127 $ 11,311
Weighted-average shares outstanding — basic (in shares) 42,962 42,357
Weighted-average shares outstanding — diluted (in shares) 46,367 43,621
Net income per share - basic (in dollars per share) $ 0.33 $ 0.27
Net income per share - diluted (in dollars per share) $ 0.30 $ 0.26
Restricted Stock Awards    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Effect of dilutive securities (in shares) 1,980 1,264
Anti-dilutive weighted-average shares (in shares) 287 1,744
Convertible Senior Notes and Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Effect of dilutive securities (in shares) 1,425 0
Anti-dilutive weighted-average shares (in shares) 5,908 0