BUSINESS SEGMENTS (Tables)

3 Months Ended

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