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EARNINGS PER SHARE (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Jun. 30, 2018 | Jul. 01, 2017
Basic EPS |  |  |  |
Net earnings attributable to Valmont Industries, Inc. | $ (32,960,000) | $ (45,664,000) | $ (72,241,000) | $ (84,643,000)
Shares outstanding basic (in shares) | 22,438,000 | 22,517,000 | 22,523,000 | 22,494,000
Per share amount basic (in dollars per share) | $ 1.47 | $ 2.03 | $ 3.21 | $ 3.76
Dilutive Effect of Stock Options |  |  |  |
Dilutive Effect of Stock Options | $ 0 | $ 0 | $ 0 | $ 0
Dilutive effect of stock options number of shares (in shares) | 135,000 | 223,000 | 161,000 | 206,000
Dilutive effect of stock options (in dollars per share) | $ (0.01) | $ (0.02) | $ (0.03) | $ (0.03)
Diluted EPS |  |  |  |
Diluted EPS | $ 32,960,000 | $ 45,664,000 | $ 72,241,000 | $ 84,643,000
Shares outstanding dilutive (in shares) | 22,573,000 | 22,740,000 | 22,684,000 | 22,700,000
Per share amount diluted (in dollars per share) | $ 1.46 | $ 2.01 | $ 3.18 | $ 3.73
Antidilutive Securities |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options | 145,105 | 84,712 | 145,105 | 84,712
2018 Restructuring Plan |  |  |  |
Basic EPS |  |  |  |
Net earnings attributable to Valmont Industries, Inc. | $ 6,295,000 |  | $ 9,620,000 |
Per share amount basic (in dollars per share) | $ (0.28) |  | $ (0.43) |
Diluted EPS |  |  |  |
Diluted EPS | $ 6,345,000 |  | $ 9,620,000 |
Per share amount diluted (in dollars per share) | $ 0.28 |  | $ 0.43 |
Donhad | Disposed by sale |  |  |  |
Basic EPS |  |  |  |
Net earnings attributable to Valmont Industries, Inc. | $ (5,455,000) |  |  |
Per share amount basic (in dollars per share) | $ 0.24 |  |  |
Diluted EPS |  |  |  |
Diluted EPS | $ 5,455,000 |  |  |
Per share amount diluted (in dollars per share) | $ 0.24 |  |  |

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