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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Income - Summary of Change in Noncontrolling Interest (Parenthetical) (Details) - $ / shares | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Minority Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |
Distributions declared (in dollars per share) | $ 0.29 | $ 0.28 | $ 0.28 | $ 0.28 | $ 0.28 | $ 0.27 | $ 0.27 | $ 0.27 | $ 1.13 | $ 1.09 | $ 1.05
Conversion of Common OP Units to Common Shares by limited partners of the Operating Partnership (in shares) |  |  |  |  |  |  |  |  | 307,663 | 117,978 | 81,453
Operating Partnership, as General Partner or Managing Member |  |  |  |  |  |  |  |  |  |  |
Minority Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |
Series A Preferred OP Units (in shares) | 3,250,603 |  |  |  | 3,329,640 |  |  |  | 3,250,603 | 3,329,640 | 3,328,873
Operating Partnership, as General Partner or Managing Member | Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |
Minority Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |
Series A Preferred OP Units (in shares) | 188 |  |  |  | 188 |  |  |  | 188 | 188 | 188
Operating Partnership, as General Partner or Managing Member | Series C Preferred Stock |  |  |  |  |  |  |  |  |  |  |
Minority Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |
Series A Preferred OP Units (in shares) | 136,593 |  |  |  | 136,593 |  |  |  | 136,593 | 136,593 | 136,593
LTIP Units |  |  |  |  |  |  |  |  |  |  |
Minority Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |
LTIP units outstanding (in shares) | 2,673,484 |  |  |  | 2,569,044 |  |  |  | 2,673,484 | 2,569,044 | 2,274,147

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