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Shareholders’ Equity - Open Market Sales Agreement (Details)
$ in Millions
 1 Months Ended 3 Months Ended
Jan. 31, 2021
shares
Mar. 31, 2021
USD ($)
shares
Sep. 18, 2020
USD ($)
Class of Stock      
Sale of stock, authorized amount | $     $ 100.0
Commission, percentage of gross sales price     0.030
Number of shares issued in transaction (in shares) | shares 1,718,506    
Stock issuance costs | $   $ 15.3  
Underwriters public offering      
Class of Stock      
Number of shares issued in transaction (in shares) | shares   1,700,000