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SEGMENT INFORMATION - Summary of Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Summarized Information
Net sales to external customers	$ 2,766,401	$ 2,541,129
Total consolidated operating earnings	334,830	292,501
Total assets	5,902,811		$ 5,804,254
United States [Member]
Summarized Information
Net sales to external customers	1,997,505	1,858,371
Total assets	2,383,796		2,309,734
Canada [Member]
Summarized Information
Net sales to external customers	181,746	186,129
Total assets	239,683		278,633
Other Businesses [Member]
Summarized Information
Net sales to external customers	587,150	496,629
Total assets	661,352		605,452
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member]
Summarized Information
Net sales to external customers	2,877,542	2,636,992
Total consolidated operating earnings	372,769	324,420
Total assets	3,284,831		$ 3,193,819
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | United States [Member]
Summarized Information
Net sales to external customers	2,107,686	1,953,444
Total consolidated operating earnings	356,504	309,642
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | Canada [Member]
Summarized Information
Net sales to external customers	181,764	186,141
Total consolidated operating earnings	(20,157)	(16,729)
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | Other Businesses [Member]
Summarized Information
Net sales to external customers	588,092	497,407
Total consolidated operating earnings	36,422	31,507
Intersegment Eliminations [Member]
Summarized Information
Net sales to external customers	(111,141)	(95,863)
Intersegment Eliminations [Member] | United States [Member]
Summarized Information
Net sales to external customers	(110,181)	(95,073)
Intersegment Eliminations [Member] | Canada [Member]
Summarized Information
Net sales to external customers	(18)	(12)
Intersegment Eliminations [Member] | Other Businesses [Member]
Summarized Information
Net sales to external customers	$ (942)	$ (778)

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
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