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EARNINGS PER SHARE | 12 Months Ended
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Dec. 28, 2016
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE
Basic earnings per share of Class A common stock is computed by dividing net income available to Shake Shack Inc. by the weighted-average number of shares of Class A common stock outstanding during the period. Diluted earnings per share of Class A common stock is computed by dividing net income available to Shake Shack Inc. by the weighted-average number of shares of Class A common stock outstanding adjusted to give effect to potentially dilutive securities. As described in Note 1, on February 4, 2015, the SSE Holdings LLC Agreement was amended and restated to, among other things, (i) provide for a new single class of common membership interests, the LLC Interests, and (ii) exchange all of the then-existing membership interests of the non-controlling interest holders for LLC Interests. For purposes of calculating earnings per share, the amounts prior to fiscal 2015 have been retroactively adjusted to give effect to the above-mentioned amendment and resulting recapitalization. The computations of earnings per share for periods prior to our IPO do not consider the 5,750,000 shares of Class A common stock issued to investors in our IPO or the 339,306 shares of Class A common stock issued upon settlement of outstanding UARs in connection with the IPO. The following table sets forth reconciliations of the numerators and denominators used to compute basic and diluted earnings per share of Class A common stock for fiscal 2016, 2015 and 2014.
|  |  | 2016 |  |  | 2015 |  |  | 2014 |
Numerator: |  |  |  |  |
| Net income | $ | 22,146 |  |  | $ | 3,124 |  |  | $ | 2,118 |
| Less: net income attributable to non-controlling interests | 9,700 |  |  | 11,900 |  |  | — |
| Net income (loss) attributable to Shake Shack Inc. | $ | 12,446 |  |  | $ | (8,776 | ) |  | $ | 2,118 |
Denominator: |  |  |  |  |
| Weighted-average shares of Class A common stock outstanding—basic | 22,956 |  |  | 13,588 |  |  | 29,977 |
| Effect of dilutive securities: |  |  |  |  |
|  | Restricted Class B units | — |  |  | — |  |  | 145 |
|  | Stock options | 493 |  |  | — |  |  | — |
| Weighted-average shares of Class A common stock outstanding—diluted | 23,449 |  |  | 13,588 |  |  | 30,122 |
Earnings per share of Class A common stock—basic | $ | 0.54 |  |  | $ | (0.65 | ) |  | $ | 0.07 |
Earnings per share of Class A common stock—diluted | $ | 0.53 |  |  | $ | (0.65 | ) |  | $ | 0.07 |
Shares of our Class B common stock do not share in the earnings or losses of Shake Shack and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B common stock under the two-class method has not been presented. The following table presents potentially dilutive securities excluded from the computations of diluted earnings per share of Class A common stock for fiscal 2016, 2015 and 2014.
|  |  | 2016 |  | 2015 |  | 2014
Stock options | 125 |  | (1) |  | 2,574,981 |  | (2) |  | — |  |
Performance stock units | 26,860 |  | (3) |  | — |  |  |  | — |  |
Shares of Class B common stock | 11,253,592 |  | (4) |  | 16,460,741 |  | (4) |  | — |  |
(1) | Weighted-average number of securities excluded from the computation of diluted earnings per share of Class A common stock because the exercise price of the stock options exceeded the average market price.
(2) | Excluded from the computation of diluted earnings per share of Class A common stock because the effect would have been anti-dilutive.
(3) | Weighted-average number of securities excluded from the computation of diluted earnings per share of Class A common stock because the performance conditions were not met for a portion of the fiscal year.
(4) | Shares of our Class B common stock are considered potentially dilutive shares of Class A common stock. Amounts have been excluded from the computations of diluted earnings per share of Class A common stock because the effect would have been anti-dilutive under the if-converted and two-class methods.

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