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SEGMENT INFORMATION Schedule of Gross Profit by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Gross Profit	$ 324,885	$ 309,451
North America
Segment Reporting Information [Line Items]
Gross Profit	219,680	220,937
International
Segment Reporting Information [Line Items]
Gross Profit	105,205	88,514
Service | Local | North America
Segment Reporting Information [Line Items]
Gross Profit	166,756	169,342
Service | Local | International
Segment Reporting Information [Line Items]
Gross Profit	70,215	59,194
Service | Goods | North America
Segment Reporting Information [Line Items]
Gross Profit	3,941	1,307
Service | Goods | International
Segment Reporting Information [Line Items]
Gross Profit	3,087	3,660
Service | Travel | North America
Segment Reporting Information [Line Items]
Gross Profit	16,002	15,165
Service | Travel | International
Segment Reporting Information [Line Items]
Gross Profit	10,651	10,036
Product | Goods | North America
Segment Reporting Information [Line Items]
Gross Profit	32,981	35,123
Product | Goods | International
Segment Reporting Information [Line Items]
Gross Profit	$ 21,252	$ 15,624

X

- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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