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GOODWILL (Details) - USD ($) $ in Thousands				9 Months Ended	12 Months Ended
	May 03, 2016	Jul. 01, 2015	Jun. 01, 2015	Sep. 30, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill, beginning balance				$ 1,252,945	$ 1,138,805
Acquisition				6,400	115,347
Effect of foreign currency translation				(2,992)	(1,207)
Goodwill, ending balance				1,256,353	1,252,945
Apartment Finder [Member]
Goodwill [Roll Forward]
Acquisition			$ 108,000
Goodwill, ending balance			$ 107,692
Belbex [Member]
Goodwill [Roll Forward]
Acquisition		$ 2,000
Independent Distributor Buyout [Member]
Goodwill [Roll Forward]
Acquisition				467	5,000
Thomas Daily [Member]
Goodwill [Roll Forward]
Acquisition	$ 6,000
North America [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance				1,227,310	1,114,363
Acquisition				467	112,947
Effect of foreign currency translation				0	0
Goodwill, ending balance				1,227,777	1,227,310
International [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance				25,635	24,442
Acquisition				5,933	2,400
Effect of foreign currency translation				(2,992)	(1,207)
Goodwill, ending balance				$ 28,576	$ 25,635

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

+ Details

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X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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