Quarterly report pursuant to Section 13 or 15(d)

Capital Stock - ATM Agreements (Details)

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Capital Stock - ATM Agreements (Details) - 2018 ATM Agreement - USD ($)
$ in Millions
Dec. 18, 2018
Mar. 10, 2021
Sale of stock    
Maximum amount of shares to be issued $ 30.0 $ 50.0
Sales commission paid per transaction (as a percent) 3.00%  
Common Stock    
Sale of stock    
Shares issued (in shares) 0