SEGMENT INFORMATION - Summary of Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Summarized Information
Net sales to external customers	$ 2,541,129	$ 2,506,538
Total consolidated operating earnings	295,488	317,092
Total assets	5,782,549		$ 5,694,307
United States [Member]
Summarized Information
Net sales to external customers	1,858,371	1,883,768
Total assets	2,311,281		2,275,009
Canada [Member]
Summarized Information
Net sales to external customers	186,129	178,735
Total assets	287,552		286,035
Other Businesses [Member]
Summarized Information
Net sales to external customers	496,629	444,035
Total assets	535,343		494,067
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member]
Summarized Information
Net sales to external customers	2,636,992	2,590,371
Total consolidated operating earnings	327,248	341,293
Total assets	3,134,176		$ 3,055,111
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | United States [Member]
Summarized Information
Net sales to external customers	1,953,444	1,966,267
Total consolidated operating earnings	312,470	331,857
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | Canada [Member]
Summarized Information
Net sales to external customers	186,141	178,771
Total consolidated operating earnings	(16,729)	(12,347)
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | Other Businesses [Member]
Summarized Information
Net sales to external customers	497,407	445,333
Total consolidated operating earnings	31,507	21,783
Intersegment Eliminations [Member]
Summarized Information
Net sales to external customers	(95,863)	(83,833)
Intersegment Eliminations [Member] | United States [Member]
Summarized Information
Net sales to external customers	(95,073)	(82,499)
Intersegment Eliminations [Member] | Canada [Member]
Summarized Information
Net sales to external customers	(12)	(36)
Intersegment Eliminations [Member] | Other Businesses [Member]
Summarized Information
Net sales to external customers	$ (778)	$ (1,298)