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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Schedule of Numerator and Denominator Used in Computation of Earnings per Share | A summary of the numerator and denominators used in the computation of earnings per share is as follows:
| Fiscal Year Ended December 31, |  |  |  |
| 2019 |  | 2018 |  | 2017
Numerator: |  |  |  |  |
Net income (loss) | $ | 31,653 |  |  | $ | 6,420 |  |  | $ | (21,799) |
Denominator: |  |  |  |  |
Class A common stock | 46,803 |  |  | 41,944 |  |  | 41,298 |
Class B common stock | 988 |  |  | 988 |  |  | 988 |
Shares to be issued - acquisition | 36 |  |  | 103 |  |  | — |
Unvested restricted stock | — |  |  | (9) |  |  | (38) |
Effect of weighted average shares outstanding | (601) |  |  | (338) |  |  | (402) |
Basic weighted average common shares outstanding | 47,226 |  |  | 42,688 |  |  | 41,846 |
Impact of potentially dilutive securities: |  |  |  |  |
Dilutive effect of stock options and stock awards | 740 |  |  | 1,480 |  |  | — |
Diluted weighted average common shares outstanding | 47,966 |  |  | 44,168 |  |  | 41,846 |
Antidilutive potentially issuable shares | 2 |  |  | 2 |  |  | 2,219 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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