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GUARANTOR/NON-GUARANTOR FINANCIAL INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 27, 2015 | Jun. 28, 2014 | Jun. 27, 2015 | Jun. 28, 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 | $ 682,123 | $ 842,599 | $ 1,352,521 | $ 1,594,339
Cost of sales | 512,575 | 622,122 | 1,017,519 | 1,166,880
Gross profit | 169,548 | 220,477 | 335,002 | 427,459
Selling, general and administrative expenses | 115,548 | 115,701 | 223,319 | 223,835
Operating income | 54,000 | 104,776 | 111,683 | 203,624
Other income (expense): |  |  |  |
Interest expense | (11,232) | (8,304) | (22,360) | (16,501)
Interest income | 616 | 1,577 | 1,490 | 3,316
Other | (28) | 1,903 | 988 | (3,909)
Total other income (expenses) | (10,644) | (4,824) | (19,882) | (17,094)
Earnings before income taxes | 43,356 | 99,952 | 91,801 | 186,530
Income tax expense (benefit): |  |  |  |
Current | 19,136 | 26,117 | 30,910 | 59,055
Deferred | (5,219) | 7,953 | (55) | 5,030
Total income tax expense (benefit) | 13,917 | 34,070 | 30,855 | 64,085
Earnings before equity in earnings of nonconsolidated subsidiaries | 29,439 | 65,882 | 60,946 | 122,445
Equity in earnings of nonconsolidated subsidiaries |  | (30) |  | (30)
Net earnings | 29,439 | 65,852 | 60,946 | 122,415
Less: Earnings attributable to noncontrolling interests | (1,566) | (1,876) | (2,334) | (2,459)
Net earnings attributable to Valmont Industries, Inc. | 27,873 | 63,976 | 58,612 | 119,956
Parent |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | 311,156 | 378,642 | 640,287 | 755,284
Cost of sales | 232,779 | 280,054 | 482,646 | 551,813
Gross profit | 78,377 | 98,588 | 157,641 | 203,471
Selling, general and administrative expenses | 50,913 | 50,164 | 98,955 | 97,954
Operating income | 27,464 | 48,424 | 58,686 | 105,517
Other income (expense): |  |  |  |
Interest expense | (10,894) | (7,691) | (21,726) | (15,366)
Interest income | 4 | 6 | 13 | 26
Other | (248) | 1,754 | (897) | 1,821
Total other income (expenses) | (11,138) | (5,931) | (22,610) | (13,519)
Earnings before income taxes | 16,326 | 42,493 | 36,076 | 91,998
Income tax expense (benefit): |  |  |  |
Current | 7,545 | 9,315 | 8,937 | 29,193
Deferred | (1,650) | 7,672 | 3,819 | 5,829
Total income tax expense (benefit) | 5,895 | 16,987 | 12,756 | 35,022
Earnings before equity in earnings of nonconsolidated subsidiaries | 10,431 | 25,506 | 23,320 | 56,976
Equity in earnings of nonconsolidated subsidiaries | 17,442 | 38,470 | 35,292 | 62,980
Net earnings | 27,873 | 63,976 | 58,612 | 119,956
Net earnings attributable to Valmont Industries, Inc. | 27,873 | 63,976 | 58,612 | 119,956
Guarantors |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | 102,090 | 124,414 | 198,038 | 260,311
Cost of sales | 78,149 | 91,536 | 153,045 | 191,352
Gross profit | 23,941 | 32,878 | 44,993 | 68,959
Selling, general and administrative expenses | 11,091 | 12,670 | 22,388 | 25,661
Operating income | 12,850 | 20,208 | 22,605 | 43,298
Other income (expense): |  |  |  |
Interest income | 2 | 113 | 4 | 296
Other | 24 | 140 |  | (352)
Total other income (expenses) | 26 | 253 | 4 | (56)
Earnings before income taxes | 12,876 | 20,461 | 22,609 | 43,242
Income tax expense (benefit): |  |  |  |
Current | 5,223 | 5,458 | 9,850 | 13,512
Deferred | (51) | 2,079 | (584) | 1,667
Total income tax expense (benefit) | 5,172 | 7,537 | 9,266 | 15,179
Earnings before equity in earnings of nonconsolidated subsidiaries | 7,704 | 12,924 | 13,343 | 28,063
Equity in earnings of nonconsolidated subsidiaries | 876 | 8,478 | 5,181 | 9,023
Net earnings | 8,580 | 21,402 | 18,524 | 37,086
Net earnings attributable to Valmont Industries, Inc. | 8,580 | 21,402 | 18,524 | 37,086
Non-Guarantors |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | 322,555 | 387,715 | 624,791 | 687,996
Cost of sales | 254,666 | 298,764 | 491,651 | 533,398
Gross profit | 67,889 | 88,951 | 133,140 | 154,598
Selling, general and administrative expenses | 53,544 | 52,867 | 101,976 | 100,220
Operating income | 14,345 | 36,084 | 31,164 | 54,378
Other income (expense): |  |  |  |
Interest expense | (338) | (613) | (634) | (1,135)
Interest income | 610 | 1,458 | 1,473 | 2,994
Other | 196 | 9 | 1,885 | (5,378)
Total other income (expenses) | 468 | 854 | 2,724 | (3,519)
Earnings before income taxes | 14,813 | 36,938 | 33,888 | 50,859
Income tax expense (benefit): |  |  |  |
Current | 6,547 | 11,316 | 12,344 | 16,218
Deferred | (3,518) | (1,798) | (3,290) | (2,466)
Total income tax expense (benefit) | 3,029 | 9,518 | 9,054 | 13,752
Earnings before equity in earnings of nonconsolidated subsidiaries | 11,784 | 27,420 | 24,834 | 37,107
Net earnings | 11,784 | 27,420 | 24,834 | 37,107
Less: Earnings attributable to noncontrolling interests | (1,566) | (1,876) | (2,334) | (2,459)
Net earnings attributable to Valmont Industries, Inc. | 10,218 | 25,544 | 22,500 | 34,648
Eliminations |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | (53,678) | (48,172) | (110,595) | (109,252)
Cost of sales | (53,019) | (48,232) | 109,823 | (109,683)
Gross profit | (659) | 60 | (772) | 431
Operating income | (659) | 60 | (772) | 431
Other income (expense): |  |  |  |
Earnings before income taxes | (659) | 60 | (772) | 431
Income tax expense (benefit): |  |  |  |
Current | (179) | 28 | (221) | 132
Total income tax expense (benefit) | (179) | 28 | (221) | 132
Earnings before equity in earnings of nonconsolidated subsidiaries | (480) | 32 | (551) | 299
Equity in earnings of nonconsolidated subsidiaries | (18,318) | (46,978) | (40,473) | (72,033)
Net earnings | (18,798) | (46,946) | (41,024) | (71,734)
Net earnings attributable to Valmont Industries, Inc. | $ (18,798) | $ (46,946) | $ (41,024) | $ (71,734)

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- Definition The parent's direct and indirect ownership percentage of the subsidiaries that are guarantors of the entity's debt. + References No definition available. + Details
Name: | vmi_SubsidiaryGuarantorsPercentageOwned
Namespace Prefix: | vmi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | dei_LegalEntityAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=us-gaap_GuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=us-gaap_NonGuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=us-gaap_ConsolidationEliminationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |