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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 |  |

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