BUSINESS COMBINATION - INTANGIBLE ASSETS ACQUIRED AS PART OF BUSINESS COMBINATION (Details) $ in Thousands	Oct. 28, 2015 USD ($)
Customer relationships \| Maximum
Business Acquisition
Estimated weighted-average useful life (in years)	1 year
New registrants \| Maximum
Business Acquisition
Estimated weighted-average useful life (in years)	1 year
Non-compete agreement
Business Acquisition
Estimated weighted-average useful life (in years)	5 years
Developed technology
Business Acquisition
Estimated weighted-average useful life (in years)	2 years
PlentyOfFish
Business Acquisition
Indefinite-lived trade name	$ 66,300
Total intangible assets acquired	84,100
PlentyOfFish \| Customer relationships
Business Acquisition
Finite-lived intangible assets	10,100
PlentyOfFish \| New registrants
Business Acquisition
Finite-lived intangible assets	3,100
PlentyOfFish \| Non-compete agreement
Business Acquisition
Finite-lived intangible assets	3,000
PlentyOfFish \| Developed technology
Business Acquisition
Finite-lived intangible assets	$ 1,600

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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