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GUARANTOR/NON-GUARANTOR FINANCIAL INFORMATION - Condensed Consolidated Statements of Earnings (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 26, 2015 | Sep. 27, 2014 | Sep. 26, 2015 | Sep. 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 | $ 632,575 | $ 765,668 | $ 1,985,096 | $ 2,360,007
Cost of sales | 475,824 | 566,168 | 1,493,343 | 1,733,048
Gross profit | 156,751 | 199,500 | 491,753 | 626,959
Selling, general and administrative expenses | 104,539 | 111,697 | 327,858 | 335,532
Impairment of goodwill and intangible assets | 15,200 | 0 | 15,200 | 0
Operating income | 37,012 | 87,803 | 148,695 | 291,427
Other income (expense): |  |  |  |
Interest expense | (11,120) | (8,716) | (33,480) | (25,217)
Interest income | 905 | 1,477 | 2,395 | 4,793
Costs associated with refinancing of debt | 0 | (38,705) | 0 | (38,705)
Other | (1,230) | (2,344) | (242) | (6,253)
Total other income (expenses) | (11,445) | (48,288) | (31,327) | (65,382)
Earnings before income taxes | 25,567 | 39,515 | 117,368 | 226,045
Income tax expense (benefit): |  |  |  |
Current | 6,746 | 23,290 | 37,656 | 82,345
Deferred income taxes | 5,272 | (9,064) | 5,217 | (4,034)
Total income tax expense (benefit) | 12,018 | 14,226 | 42,873 | 78,311
Earnings before equity in earnings of nonconsolidated subsidiaries | 13,549 | 25,289 | 74,495 | 147,734
Equity in earnings of nonconsolidated subsidiaries | 0 | (4) | 0 | (34)
Net earnings | 13,549 | 25,285 | 74,495 | 147,700
Less: Earnings attributable to noncontrolling interests | (1,483) | (1,726) | (3,817) | (4,185)
Net earnings attributable to Valmont Industries, Inc. | 12,066 | 23,559 | 70,678 | 143,515
Parent |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | 249,121 | 313,775 | 889,408 | 1,069,059
Cost of sales | 191,143 | 234,085 | 673,789 | 785,898
Gross profit | 57,978 | 79,690 | 215,619 | 283,161
Selling, general and administrative expenses | 44,432 | 48,560 | 143,387 | 146,514
Impairment of goodwill and intangible assets | 0 |  | 0 |
Operating income | 13,546 | 31,130 | 72,232 | 136,647
Other income (expense): |  |  |  |
Interest expense | (10,822) | (8,061) | (32,548) | (23,427)
Interest income | (9) | 2 | 4 | 28
Costs associated with refinancing of debt |  | (38,705) |  | (38,705)
Other | (2,123) | (196) | (3,020) | 1,625
Total other income (expenses) | (12,954) | (46,960) | (35,564) | (60,479)
Earnings before income taxes | 592 | (15,830) | 36,668 | 76,168
Income tax expense (benefit): |  |  |  |
Current | (9,059) | 9,296 | (122) | 38,489
Deferred income taxes | 7,909 | (12,430) | 11,728 | (6,601)
Total income tax expense (benefit) | (1,150) | (3,134) | 11,606 | 31,888
Earnings before equity in earnings of nonconsolidated subsidiaries | 1,742 | (12,696) | 25,062 | 44,280
Equity in earnings of nonconsolidated subsidiaries | 10,324 | 36,255 | 45,616 | 99,235
Net earnings | 12,066 | 23,559 | 70,678 | 143,515
Less: Earnings attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net earnings attributable to Valmont Industries, Inc. | 12,066 | 23,559 | 70,678 | 143,515
Guarantors |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | 114,766 | 120,016 | 312,804 | 380,327
Cost of sales | 82,848 | 92,091 | 235,893 | 283,443
Gross profit | 31,918 | 27,925 | 76,911 | 96,884
Selling, general and administrative expenses | 11,154 | 12,145 | 33,542 | 37,806
Impairment of goodwill and intangible assets | 0 |  | 0 |
Operating income | 20,764 | 15,780 | 43,369 | 59,078
Other income (expense): |  |  |  |
Interest expense | 0 | 0 | 0 | 0
Interest income | 2 | 60 | 6 | 356
Costs associated with refinancing of debt |  | 0 |  | 0
Other | 31 | (149) | 31 | (501)
Total other income (expenses) | 33 | (89) | 37 | (145)
Earnings before income taxes | 20,797 | 15,691 | 43,406 | 58,933
Income tax expense (benefit): |  |  |  |
Current | 8,423 | 6,206 | 18,273 | 19,718
Deferred income taxes | (478) | (342) | (1,062) | 1,325
Total income tax expense (benefit) | 7,945 | 5,864 | 17,211 | 21,043
Earnings before equity in earnings of nonconsolidated subsidiaries | 12,852 | 9,827 | 26,195 | 37,890
Equity in earnings of nonconsolidated subsidiaries | 1,254 | 8,446 | 6,435 | 17,469
Net earnings | 14,106 | 18,273 | 32,630 | 55,359
Less: Earnings attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net earnings attributable to Valmont Industries, Inc. | 14,106 | 18,273 | 32,630 | 55,359
Non- Guarantors |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | 321,726 | 384,564 | 946,517 | 1,072,560
Cost of sales | 255,424 | 292,722 | 747,075 | 826,120
Gross profit | 66,302 | 91,842 | 199,442 | 246,440
Selling, general and administrative expenses | 48,953 | 50,992 | 150,929 | 151,212
Impairment of goodwill and intangible assets | 15,200 |  | 15,200 |
Operating income | 2,149 | 40,850 | 33,313 | 95,228
Other income (expense): |  |  |  |
Interest expense | (298) | (655) | (932) | (1,790)
Interest income | 912 | 1,415 | 2,385 | 4,409
Costs associated with refinancing of debt |  | 0 |  | 0
Other | 862 | (1,999) | 2,747 | (7,377)
Total other income (expenses) | 1,476 | (1,239) | 4,200 | (4,758)
Earnings before income taxes | 3,625 | 39,611 | 37,513 | 90,470
Income tax expense (benefit): |  |  |  |
Current | 7,226 | 7,791 | 19,570 | 24,009
Deferred income taxes | (2,159) | 3,708 | (5,449) | 1,242
Total income tax expense (benefit) | 5,067 | 11,499 | 14,121 | 25,251
Earnings before equity in earnings of nonconsolidated subsidiaries | (1,442) | 28,112 | 23,392 | 65,219
Equity in earnings of nonconsolidated subsidiaries | 0 | 0 | 0 | 0
Net earnings | (1,442) | 28,112 | 23,392 | 65,219
Less: Earnings attributable to noncontrolling interests | (1,483) | (1,726) | (3,817) | (4,185)
Net earnings attributable to Valmont Industries, Inc. | (2,925) | 26,386 | 19,575 | 61,034
Eliminations |  |  |  |
Condensed consolidated financial information for the Company (Parent), the guarantor subsidiaries and the non-guarantor subsidiaries |  |  |  |
Net sales | (53,038) | (52,687) | (163,633) | (161,939)
Cost of sales | (53,591) | (52,730) | (163,414) | (162,413)
Gross profit | 553 | 43 | (219) | 474
Selling, general and administrative expenses | 0 | 0 | 0 | 0
Impairment of goodwill and intangible assets | 0 |  | 0 |
Operating income | 553 | 43 | (219) | 474
Other income (expense): |  |  |  |
Interest expense | 0 | 0 | 0 | 0
Interest income | 0 | 0 | 0 | 0
Costs associated with refinancing of debt |  | 0 |  | 0
Other | 0 | 0 | 0 | 0
Total other income (expenses) | 0 | 0 | 0 | 0
Earnings before income taxes | 553 | 43 | (219) | 474
Income tax expense (benefit): |  |  |  |
Current | 156 | (3) | (65) | 129
Deferred income taxes | 0 | 0 | 0 | 0
Total income tax expense (benefit) | 156 | (3) | (65) | 129
Earnings before equity in earnings of nonconsolidated subsidiaries | 397 | 46 | (154) | 345
Equity in earnings of nonconsolidated subsidiaries | (11,578) | (44,705) | (52,051) | (116,738)
Net earnings | (11,181) | (44,659) | (52,205) | (116,393)
Less: Earnings attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net earnings attributable to Valmont Industries, Inc. | $ (11,181) | $ (44,659) | $ (52,205) | $ (116,393)

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