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Equity - Schedule of Information with Respect to ATM Program (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Subsidiary Sale Of Stock [Line Items]      
Net Proceeds $ 175,929 $ 162,023 $ 258,556
Two Thousand Seventeen A T M Program      
Subsidiary Sale Of Stock [Line Items]      
Number of Shares Issued     1,765,269
Net Proceeds     $ 31,998
March 2019 ATM Program      
Subsidiary Sale Of Stock [Line Items]      
Number of Shares Issued [1] 246,363 4,120,992 4,730,927
Net Proceeds [1] $ 6,451 $ 93,774 $ 95,159
March 2019 ATM Program [Member]      
Subsidiary Sale Of Stock [Line Items]      
Number of Shares Issued [1] 3,424,869 2,875,832  
Net Proceeds [1] $ 83,554 $ 66,630  
[1]

 

(1)

Shares issued by us, which were all issued in settlement of forward sales transactions. Additionally, as of December 31, 2021, we had entered into forward sales transactions under the December 2019 ATM Program for the sale of an additional 2,135,289 shares of our common stock that have not yet been settled. Subject to our right to elect net share settlement, we expect to physically settle the forward sales transactions by the maturity dates set forth in each applicable forward sale transaction placement notice, which dates range from January 2022 to December 2022. Assuming the forward sales transactions are physically settled in full utilizing a net weighted average initial forward sales price of $21.97 per share, we expect to receive net proceeds of approximately $46.9 million, after deducting offering costs, subject to adjustments in accordance with the applicable forward sale transaction. We accounted for the forward sale agreements as equity.