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BUSINESS SEGMENTS (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 27, 2020 USD ($) | Jun. 29, 2019 USD ($) | Jun. 27, 2020 USD ($) segment | Jun. 29, 2019 USD ($)
Business Segments |  |  |  |
Number of reportable segments | segment |  |  | 4 |
Net sales | $ 688,808 | $ 700,871 | $ 1,363,008 | $ 1,393,010
Operating income | 43,440 | 61,474 | 110,335 | 116,076
Engineered Support Structures Segment |  |  |  |
Business Segments |  |  |  |
Net sales | 248,873 | 257,565 | 476,239 | 485,534
Operating income | 4,818 | 20,882 | 20,749 | 33,327
Utility Support Structures Segment |  |  |  |
Business Segments |  |  |  |
Net sales | 228,473 | 209,009 | 451,421 | 452,267
Operating income | 21,650 | 16,033 | 49,374 | 41,081
Coatings Segment |  |  |  |
Business Segments |  |  |  |
Net sales | 62,667 | 81,089 | 131,257 | 151,320
Operating income | 10,148 | 15,032 | 21,202 | 25,172
Irrigation Segment |  |  |  |
Business Segments |  |  |  |
Net sales | 148,795 | 153,208 | 304,091 | 303,889
Operating income | 22,351 | 21,530 | 46,014 | 41,664
Sales |  |  |  |
Business Segments |  |  |  |
Sales | 715,353 | 722,168 | 1,416,361 | 1,435,973
Sales | Engineered Support Structures Segment |  |  |  |
Business Segments |  |  |  |
Sales | 253,385 | 258,748 | 484,127 | 489,036
Sales | Engineered Support Structures Segment | Lighting, Traffic, and Highway Safety Products |  |  |  |
Business Segments |  |  |  |
Sales | 181,027 | 181,575 | 353,014 | 338,759
Sales | Engineered Support Structures Segment | Communication Products |  |  |  |
Business Segments |  |  |  |
Sales | 50,886 | 47,454 | 89,082 | 90,319
Sales | Engineered Support Structures Segment | Access Systems |  |  |  |
Business Segments |  |  |  |
Sales | 21,472 | 29,719 | 42,031 | 59,958
Sales | Utility Support Structures Segment |  |  |  |
Business Segments |  |  |  |
Sales | 231,324 | 209,829 | 456,785 | 453,751
Sales | Utility Support Structures Segment | Steel |  |  |  |
Business Segments |  |  |  |
Sales | 159,817 | 147,116 | 326,348 | 306,876
Sales | Utility Support Structures Segment | Concrete |  |  |  |
Business Segments |  |  |  |
Sales | 45,653 | 30,560 | 81,438 | 60,404
Sales | Utility Support Structures Segment | Engineered Solar Tracker Solutions |  |  |  |
Business Segments |  |  |  |
Sales | 4,619 | 9,932 | 13,543 | 40,224
Sales | Utility Support Structures Segment | Offshore and Other Complex Steel Structures |  |  |  |
Business Segments |  |  |  |
Sales | 21,235 | 22,221 | 35,456 | 46,247
Sales | Coatings Segment |  |  |  |
Business Segments |  |  |  |
Sales | 80,005 | 98,406 | 168,090 | 185,185
Sales | Irrigation Segment |  |  |  |
Business Segments |  |  |  |
Sales | 150,639 | 155,185 | 307,359 | 308,001
Intersegment sales |  |  |  |
Business Segments |  |  |  |
Sales | 26,545 | 21,297 | 53,353 | 42,963
Intersegment sales | Engineered Support Structures Segment |  |  |  |
Business Segments |  |  |  |
Sales | 4,512 | 1,183 | 7,888 | 3,502
Intersegment sales | Utility Support Structures Segment |  |  |  |
Business Segments |  |  |  |
Sales | 2,851 | 820 | 5,364 | 1,484
Intersegment sales | Coatings Segment |  |  |  |
Business Segments |  |  |  |
Sales | 17,338 | 17,317 | 36,833 | 33,865
Intersegment sales | Irrigation Segment |  |  |  |
Business Segments |  |  |  |
Sales | 1,844 | 1,977 | 3,268 | 4,112
Other |  |  |  |
Business Segments |  |  |  |
Operating income | (15,527) | (12,003) | (27,004) | (25,168)
North America | Sales | Irrigation Segment |  |  |  |
Business Segments |  |  |  |
Sales | 99,034 | 102,810 | 205,594 | 211,287
International | Sales | Irrigation Segment |  |  |  |
Business Segments |  |  |  |
Sales | $ 51,605 | $ 52,375 | $ 101,765 | $ 96,714

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