The following table sets forth the computation of basic and diluted earnings (loss) per common share for the years ended December 31, 2015 and 2014, and the nine months ended December 31, 2013 (in thousands, except per share amounts): | | | | | | | | | | | | | | Year Ended December 31, | | Nine Months Ended December 31, | | 2015 | | 2014 | | 2013 | Earnings (loss) per common share - basic and diluted | | | | | | Numerator | | | | | | Net income (loss) | $ | 4,796 |
| | $ | (16,357 | ) | | $ | (10,481 | ) | Net loss attributable to noncontrolling interests | 7,644 |
| | 16,357 |
| | 10,481 |
| Net income (loss) attributable to National Storage Affiliates Trust | 12,440 |
| | — |
| | — |
| Distributed and undistributed earnings allocated to participating securities | (9 | ) | | — |
| | — |
| Net income (loss) attributable to common shareholders - basic | 12,431 |
| | — |
| | — |
| Effect of assumed conversion of dilutive securities | (4,919 | ) | | — |
| | — |
| Net income (loss) attributable to common shareholders - diluted | $ | 7,512 |
| | $ | — |
| | $ | — |
| | | | | | | Denominator | | | | | | Weighted average shares outstanding - basic | 15,463 |
| | 1 |
| | 1 |
| Effect of dilutive securities: | | | | | | Weighted average OP units outstanding | 15,697 |
| | — |
| | — |
| Weighted average DownREIT OP unit equivalents outstanding | 1,171 |
| | — |
| | — |
| Weighted average LTIP units outstanding | 1,272 |
| | — |
| | — |
| Subordinated performance units and DownREIT subordinated performance unit equivalents | 11,806 |
| | — |
| | — |
| Weighted average shares outstanding - diluted | 45,409 |
| | 1 |
| | 1 |
| | | | | | | Earnings (loss) per share - basic | $ | 0.80 |
| | $ | — |
| | $ | — |
| Earnings (loss) per share - diluted | $ | 0.17 |
| | $ | — |
| | $ | — |
| Dividends declared per common share | $ | 0.54 |
| | $ | — |
| | $ | — |
|
|