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BUSINESS SEGMENTS (Tables) | 3 Months Ended
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Apr. 01, 2017
Segment Reporting [Abstract] |
Segment reporting information of sales and operating income | (7) BUSINESS SEGMENTS (Continued) Summary by Business
| Thirteen Weeks Ended
| April 1, 2017 |  | March 26, 2016
SALES: |  |  |
Engineered Support Structures segment: |  |  |
Lighting, Traffic, and Roadway Products | $ | 149,082 |  |  | $ | 146,302 |
Communication Products | 31,476 |  |  | 30,669 |
Engineered Support Structures segment | 180,558 |  |  | 176,971 |
Energy and Mining segment: |  |  |
Offshore and Other Complex Steel Structures | 25,707 |  |  | 22,969 |
Grinding Media | 19,594 |  |  | 19,490 |
Access Systems | 32,671 |  |  | 29,990 |
Energy and Mining segment | 77,972 |  |  | 72,449 |
Utility Support Structures segment: |  |  |
Steel | 148,408 |  |  | 121,971 |
Concrete | 26,204 |  |  | 22,549 |
Utility Support Structures segment | 174,612 |  |  | 144,520 |
Coatings segment | 73,468 |  |  | 68,581 |
Irrigation segment | 167,224 |  |  | 158,514 |
Total | 673,834 |  |  | 621,035 |
INTERSEGMENT SALES: |  |  |
Engineered Support Structures segment | 20,207 |  |  | 11,012 |
Energy & Mining segment | — |  |  | 1,658 |
Utility Support Structures segment | 235 |  |  | 176 |
Coatings segment | 14,136 |  |  | 9,813 |
Irrigation segment | 1,783 |  |  | 1,771 |
Total | 36,361 |  |  | 24,430 |
NET SALES: |  |  |
Engineered Support Structures segment | 160,351 |  |  | 165,959 |
Energy & Mining segment | 77,972 |  |  | 70,791 |
Utility Support Structures segment | 174,377 |  |  | 144,344 |
Coatings segment | 59,332 |  |  | 58,768 |
Irrigation segment | 165,441 |  |  | 156,743 |
Total | $ | 637,473 |  |  | $ | 596,605 |
OPERATING INCOME: |  |  |
Engineered Support Structures segment | 9,213 |  |  | 12,475 |
Energy & Mining segment | 3,837 |  |  | 1,902 |
Utility Support Structures segment | 22,708 |  |  | 14,424 |
Coatings segment | 9,406 |  |  | 11,413 |
Irrigation segment | 30,291 |  |  | 28,895 |
Adjustment to LIFO inventory valuation method | (779 | ) |  | 2,027 |
Corporate | (10,174 | ) |  | (8,771 | )
Total | $ | 64,502 |  |  | $ | 62,365 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599 + Details
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