v3.19.3
SEGMENT INFORMATION - Sales and Operating Income of Segments (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
segment
Sep. 30, 2018
USD ($)
Segment Reporting Information [Line Items]        
Number of Reportable Segments (in segments) | segment     2  
Total sales $ 566,186 $ 575,139 $ 1,787,622 $ 1,731,850
Operating income 37,410 44,709 118,465 139,522
Intersegment sales        
Segment Reporting Information [Line Items]        
Total sales 9,180 9,279 27,514 30,304
Operating Segments        
Segment Reporting Information [Line Items]        
Total sales 575,366 584,418 1,815,136 1,762,154
Operating income 51,394 62,493 163,709 197,891
Manufacturing        
Segment Reporting Information [Line Items]        
Total sales 399,712 445,214 1,259,671 1,344,088
Manufacturing | Intersegment sales        
Segment Reporting Information [Line Items]        
Total sales 8,102 8,182 24,153 27,464
Manufacturing | Operating Segments        
Segment Reporting Information [Line Items]        
Total sales 407,814 453,396 1,283,824 1,371,552
Operating income 42,353 54,887 135,577 172,799
Distribution        
Segment Reporting Information [Line Items]        
Total sales 166,474 129,925 527,951 387,762
Distribution | Intersegment sales        
Segment Reporting Information [Line Items]        
Total sales 1,078 1,097 3,361 2,840
Distribution | Operating Segments        
Segment Reporting Information [Line Items]        
Total sales 167,552 131,022 531,312 390,602
Operating income $ 9,041 $ 7,606 $ 28,132 $ 25,092