Equity - Schedule of Information with Respect to ATM Program (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||||||
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Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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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 | |||||
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