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Stockholders’ Equity - Schedule of Company's Public Offering of Common Stock (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Feb. 29, 2020
Jan. 31, 2020
Nov. 30, 2019
Sep. 30, 2019
Jul. 31, 2019
May 31, 2019
Mar. 31, 2019
Jan. 31, 2019
Nov. 30, 2018
Aug. 31, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]                          
Stock issued (in shares)                     30,900,000    
Net Proceeds                     $ 511,924 $ 804,398 $ 260,091
Common Stock | Underwritten Public Offering                          
Class of Stock [Line Items]                          
Stock issued (in shares) 50,600,000 34,500,000 28,750,000 28,750,000 23,000,000 20,700,000 17,250,000 14,490,000 14,375,000 14,375,000      
Net Proceeds $ 305,274 $ 206,650 $ 172,150 $ 173,093 $ 137,500 $ 123,102 $ 101,160 $ 83,772 $ 85,261 $ 85,980