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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - ATM Program - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Jun. 30, 2019
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Class of Stock [Line Items]          
Net proceeds from sale of common stock     $ 45,865 $ (22,386)  
Purchase new program included an optional forward purchase component $ (189)   $ 45,865    
ATM Program          
Class of Stock [Line Items]          
Issuance of common shares, net of issuance costs (in Shares)     0   0
Net proceeds from sale of common stock     $ 45,900    
Gross proceeds from issuance of common stock     46,600    
Purchase new program included an optional forward purchase component   $ 250,000      
Value of shares available for issuance $ 123,600   $ 123,600    
Share price (in dollars per share) $ 22.37   $ 22.37   $ 22.09
Common Shares          
Class of Stock [Line Items]          
Issuance of common shares, net of issuance costs (in Shares) 13   2,085    
Purchase new program included an optional forward purchase component     $ 2    
Common Shares | ATM Program          
Class of Stock [Line Items]          
Issuance of common shares, net of issuance costs (in Shares)     2,084,896