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Common and Preferred Stock - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 28, 2018
Mar. 31, 2024
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Class of Stock [Line Items]              
Common stock, shares authorized         800,000,000   800,000,000
Common stock, par value         $ 0.01   $ 0.01
Undesignated preferred stock, shares authorized         10,000,000   10,000,000
Undesignated preferred stock, par value         $ 0.01   $ 0.01
Common stock, shares issued         274,467,247   270,034,495
Common stock, shares outstanding         274,467,247   270,034,495
Undesignated preferred stock, shares outstanding         0   0
Proceeds from market price stock purchase plan         $ 1.4 $ 0.2  
Market price stock purchase plan         416,099 36,004  
Common Stock              
Class of Stock [Line Items]              
Number of shares sold during the period   416,000 362,000 269,000      
Controlled Equity Offering Sales Agreement | Cantor Fitzgerald | Common Stock | Maximum              
Class of Stock [Line Items]              
Amount of net proceeds from issuance of securities $ 50.0            
At Market Issuance Sales Agreement | Cantor Fitzgerald | Common Stock              
Class of Stock [Line Items]              
Amount of net proceeds from issuance of securities           $ 2.8  
Number of shares sold during the period           631,383  
At Market Issuance Sales Agreement | Cantor Fitzgerald | Common Stock | Weighted Average              
Class of Stock [Line Items]              
Exchange price per share     $ 4.4     $ 4.4