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GUARANTOR/NON-GUARANTOR FINANCIAL INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 24, 2016 | Jun. 25, 2016 | Mar. 26, 2016 | Dec. 26, 2015 | Sep. 26, 2015 | Jun. 27, 2015 | Mar. 28, 2015 | Dec. 31, 2016 | Dec. 26, 2015 | Dec. 27, 2014
GUARANTOR/NON-GUARANTOR FINANCIAL INFORMATION |  |  |  |  |  |  |  |  |  |  |
Parent company's percentage ownership of Guarantors | 100.00% |  |  |  |  |  |  |  | 100.00% |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 674,575 | $ 610,247 | $ 640,249 | $ 596,605 | $ 633,828 | $ 632,575 | $ 682,123 | $ 670,398 | $ 2,521,676 | $ 2,618,924 | $ 3,123,143
Cost of sales |  |  |  |  |  |  |  |  | 1,865,433 | 1,997,891 | 2,315,026
Gross profit | 165,135 | 155,023 | 175,117 | 160,968 | 129,280 | 156,751 | 169,548 | 165,454 | 656,243 | 621,033 | 808,117
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 412,739 | 447,368 | 450,401
Impairment of goodwill and intangible assets |  |  |  |  |  | 13,400 |  |  | 0 | 41,970 | 0
Operating income |  |  |  |  |  |  |  |  | 243,504 | 131,695 | 357,716
Other income (expense): |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (44,409) | (44,621) | (36,790)
Interest income |  |  |  |  |  |  |  |  | 3,105 | 3,296 | 6,046
Costs associated with refinancing of debt |  |  |  |  |  |  |  |  | 0 | 0 | (38,705)
Other |  |  |  |  |  |  |  |  | 18,254 | 2,637 | (4,084)
Total other income (expenses) |  |  |  |  |  |  |  |  | (23,050) | (38,688) | (73,533)
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 220,454 | 93,007 | 284,183
Income tax expense (benefit): |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | 65,748 | 42,569 | 89,643
Deferred income taxes |  |  |  |  |  |  |  |  | (23,685) | 4,858 | 5,251
Total income tax expense (benefit) |  |  |  |  |  |  |  |  | 42,063 | 47,427 | 94,894
Earnings before equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 178,391 | 45,580 | 189,289
Equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 0 | (247) | 29
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax |  |  |  |  |  |  |  |  | 13,652 | 0 | 0
Net earnings |  |  |  |  |  |  |  |  | 178,391 | 45,333 | 189,318
Less: Earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (5,159) | (5,216) | (5,342)
Net earnings attributable to Valmont Industries, Inc. | $ 70,064 | $ 28,173 | $ 42,026 | $ 32,969 | $ (30,561) | $ 12,066 | $ 27,873 | $ 30,739 | 173,232 | 40,117 | 183,976
Eliminations |  |  |  |  |  |  |  |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | (191,877) | (213,287) | (221,745)
Cost of sales |  |  |  |  |  |  |  |  | (190,716) | (212,927) | (222,234)
Gross profit |  |  |  |  |  |  |  |  | (1,161) | (360) | 489
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairment of goodwill and intangible assets |  |  |  |  |  |  |  |  | 0 | 0 |
Operating income |  |  |  |  |  |  |  |  | (1,161) | (360) | 489
Other income (expense): |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest income |  |  |  |  |  |  |  |  | 0 | 0 | 0
Costs associated with refinancing of debt |  |  |  |  |  |  |  |  |  |  | 0
Other |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total other income (expenses) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | (1,161) | (360) | 489
Income tax expense (benefit): |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | (323) | (1) | 138
Deferred income taxes |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total income tax expense (benefit) |  |  |  |  |  |  |  |  | (323) | (1) | 138
Earnings before equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | (838) | (359) | 351
Equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | (207,189) | 27,576 | (148,574)
Net earnings |  |  |  |  |  |  |  |  | (208,027) | 27,217 | (148,223)
Less: Earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net earnings attributable to Valmont Industries, Inc. |  |  |  |  |  |  |  |  | (208,027) | 27,217 | (148,223)
Parent |  |  |  |  |  |  |  |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,126,985 | 1,169,674 | 1,392,509
Cost of sales |  |  |  |  |  |  |  |  | 837,616 | 890,242 | 1,040,808
Gross profit |  |  |  |  |  |  |  |  | 289,369 | 279,432 | 351,701
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 184,493 | 194,335 | 196,987
Impairment of goodwill and intangible assets |  |  |  |  |  |  |  |  | 0 | 0 |
Operating income |  |  |  |  |  |  |  |  | 104,876 | 85,097 | 154,714
Other income (expense): |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (43,703) | (43,552) | (34,267)
Interest income |  |  |  |  |  |  |  |  | 273 | 9 | 38
Costs associated with refinancing of debt |  |  |  |  |  |  |  |  |  |  | (38,705)
Other |  |  |  |  |  |  |  |  | 1,480 | (2,374) | 2,021
Total other income (expenses) |  |  |  |  |  |  |  |  | (41,950) | (45,917) | (70,913)
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 62,926 | 39,180 | 83,801
Income tax expense (benefit): |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | 24,539 | 863 | 30,330
Deferred income taxes |  |  |  |  |  |  |  |  | 6,216 | 10,042 | (1,474)
Total income tax expense (benefit) |  |  |  |  |  |  |  |  | 30,755 | 10,905 | 28,856
Earnings before equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 32,171 | 28,275 | 54,945
Equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 141,061 | 11,842 | 129,031
Net earnings |  |  |  |  |  |  |  |  | 173,232 | 40,117 | 183,976
Less: Earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net earnings attributable to Valmont Industries, Inc. |  |  |  |  |  |  |  |  | 173,232 | 40,117 | 183,976
Guarantors |  |  |  |  |  |  |  |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 390,756 | 423,928 | 496,326
Cost of sales |  |  |  |  |  |  |  |  | 285,924 | 332,847 | 371,639
Gross profit |  |  |  |  |  |  |  |  | 104,832 | 91,081 | 124,687
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 46,244 | 45,549 | 49,171
Impairment of goodwill and intangible assets |  |  |  |  |  |  |  |  | 0 | 0 |
Operating income |  |  |  |  |  |  |  |  | 58,588 | 45,532 | 75,516
Other income (expense): |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (10) | 0 | (5)
Interest income |  |  |  |  |  |  |  |  | 112 | 103 | 359
Costs associated with refinancing of debt |  |  |  |  |  |  |  |  |  |  | 0
Other |  |  |  |  |  |  |  |  | 77 | 60 | (511)
Total other income (expenses) |  |  |  |  |  |  |  |  | 179 | 163 | (157)
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 58,767 | 45,695 | 75,359
Income tax expense (benefit): |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | 20,270 | 23,261 | 25,277
Deferred income taxes |  |  |  |  |  |  |  |  | 0 | (6,224) | 1,866
Total income tax expense (benefit) |  |  |  |  |  |  |  |  | 20,270 | 17,037 | 27,143
Earnings before equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 38,497 | 28,658 | 48,216
Equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 66,128 | (39,418) | 19,509
Net earnings |  |  |  |  |  |  |  |  | 104,625 | (10,760) | 67,725
Less: Earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net earnings attributable to Valmont Industries, Inc. |  |  |  |  |  |  |  |  | 104,625 | (10,760) | 67,725
Non- Guarantors |  |  |  |  |  |  |  |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,195,812 | 1,238,609 | 1,456,053
Cost of sales |  |  |  |  |  |  |  |  | 932,609 | 987,729 | 1,124,813
Gross profit |  |  |  |  |  |  |  |  | 263,203 | 250,880 | 331,240
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 182,002 | 207,484 | 204,243
Impairment of goodwill and intangible assets |  |  |  |  |  |  |  |  |  | 41,970 |
Operating income |  |  |  |  |  |  |  |  | 81,201 | 1,426 | 126,997
Other income (expense): |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (696) | (1,069) | (2,518)
Interest income |  |  |  |  |  |  |  |  | 2,720 | 3,184 | 5,649
Costs associated with refinancing of debt |  |  |  |  |  |  |  |  |  |  | 0
Other |  |  |  |  |  |  |  |  | 16,697 | 4,951 | (5,594)
Total other income (expenses) |  |  |  |  |  |  |  |  | 18,721 | 7,066 | (2,463)
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 99,922 | 8,492 | 124,534
Income tax expense (benefit): |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  | 21,262 | 18,446 | 33,898
Deferred income taxes |  |  |  |  |  |  |  |  | (29,901) | 1,040 | 4,859
Total income tax expense (benefit) |  |  |  |  |  |  |  |  | (8,639) | 19,486 | 38,757
Earnings before equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 108,561 | (10,994) | 85,777
Equity in earnings of nonconsolidated subsidiaries |  |  |  |  |  |  |  |  | 0 | (247) | 63
Net earnings |  |  |  |  |  |  |  |  | 108,561 | (11,241) | 85,840
Less: Earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (5,159) | (5,216) | (5,342)
Net earnings attributable to Valmont Industries, Inc. |  |  |  |  |  |  |  |  | $ 103,402 | $ (16,457) | $ 80,498

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