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Consolidated Statements of Equity (Parenthetical) - shares | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Balance (in units/ shares) | 111,939,790 | 102,150,358 | 110,241,868 | 101,292,299
Conversion of common units to common shares (in units/shares) | 5,500 | 53,817 |  |
Share-based compensation issuance, net of redemptions (in units/shares) | 78,335 | 127,242 |  |
Forward Equity Sale Agreement |  |  |  |
Common shares issued during the period (in units/shares) | 1,614,087 | 677,000 |  |

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