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Stockholders' Equity - Narrative (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended
Mar. 16, 2021
Mar. 31, 2021
Dec. 31, 2020
Class of Stock [Line Items]      
Common stock, par value (in dollars per share)   $ 0.01 $ 0.01
Restricted Stock Awards      
Class of Stock [Line Items]      
Restricted stock and restricted stock units granted (in shares)   426  
Grants in the period, aggregate fair value   $ 7.0  
Unrecognized compensation costs related to restricted stock awards   $ 12.9  
Weighted average period of recognition   2 years  
Stock Option Awards      
Class of Stock [Line Items]      
Weighted average period of recognition   2 years 1 month 6 days  
Options, granted (in shares)   382  
Weighted average exercise price (in dollars per share)   $ 16.52  
Unrecognized compensation costs related to options   $ 5.3  
Performance Restricted Stock Units      
Class of Stock [Line Items]      
Restricted stock and restricted stock units granted (in shares)   64  
Grants in the period, aggregate fair value   $ 1.1  
Unrecognized compensation costs related to restricted stock awards   $ 1.8  
Weighted average period of recognition   2 years 3 months 18 days  
Performance period (in years)   3 years  
Common Stock      
Class of Stock [Line Items]      
Shares sold in offering (in shares) 5,750    
Offering price per share ( in dollars per share) $ 16.00    
Common stock, par value (in dollars per share) $ 0.01    
Aggregate net proceeds from stock offering $ 87.4