Segment Information Revenue by Segment and Category (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Gross Profit		$ 339,328	$ 347,406
Gross Profit, Services		$ 270,976	291,390
Primary Categories		3
Third party and other		$ 334,568	360,121
Revenue, services		313,262	334,882
Direct		397,403	390,235
Total revenue		731,971	750,356
North America [Member]
Gross Profit		215,943	194,490
Gross Profit, Services		179,730	170,567
Revenue, services		213,067	200,853
Total revenue	[1]	500,813	479,882
EMEA [Member]
Gross Profit		94,890	115,237
Gross Profit, Services		68,478	89,756
Revenue, services		73,064	97,253
Total revenue	[1]	188,970	216,220
ROW [Member]
Gross Profit		28,495	37,679
Gross Profit, Services		22,768	31,067
Revenue, services		27,131	36,776
Total revenue		42,188	54,254
Local [Member]
Third party and other	[2]	276,121	293,681
Local [Member] | North America [Member]
Third party and other	[2]	192,153	180,864
Local [Member] | EMEA [Member]
Third party and other	[2]	61,886	82,536
Local [Member] | ROW [Member]
Third party and other	[2]	22,082	30,281
Travel [Member]
Third party and other		37,141	41,201
Travel [Member] | North America [Member]
Third party and other		20,914	19,989
Travel [Member] | EMEA [Member]
Third party and other		11,178	14,717
Travel [Member] | ROW [Member]
Third party and other		5,049	6,495
Goods [Member]
Gross Profit		68,352	56,016
Third party and other		21,306	25,239
Direct		397,403	390,235
Total revenue		418,709	415,474
Goods [Member] | North America [Member]
Gross Profit		36,213	23,923
Third party and other		1,990	648
Direct		285,756	278,381
Total revenue		287,746	279,029
Goods [Member] | EMEA [Member]
Gross Profit		26,412	25,481
Third party and other		10,686	11,978
Direct		105,220	106,989
Total revenue		115,906	118,967
Goods [Member] | ROW [Member]
Gross Profit		5,727	6,612
Third party and other		8,630	12,613
Direct		6,427	4,865
Total revenue		15,057	17,478
Third party and other [Member] | Local [Member]
Gross Profit	[3]	241,052	258,293
Third party and other [Member] | Local [Member] | North America [Member]
Gross Profit	[3]	164,018	154,776
Third party and other [Member] | Local [Member] | EMEA [Member]
Gross Profit	[3]	58,263	77,356
Third party and other [Member] | Local [Member] | ROW [Member]
Gross Profit	[3]	18,771	26,161
Third party and other [Member] | Travel [Member]
Gross Profit		29,924	33,097
Third party and other [Member] | Travel [Member] | North America [Member]
Gross Profit		15,712	15,791
Third party and other [Member] | Travel [Member] | EMEA [Member]
Gross Profit		10,215	12,400
Third party and other [Member] | Travel [Member] | ROW [Member]
Gross Profit		3,997	4,906
Third party and other [Member] | Goods [Member]
Gross Profit		16,811	17,034
Third party and other [Member] | Goods [Member] | North America [Member]
Gross Profit		1,673	434
Third party and other [Member] | Goods [Member] | EMEA [Member]
Gross Profit		9,445	10,193
Third party and other [Member] | Goods [Member] | ROW [Member]
Gross Profit		$ 5,693	$ 6,407
Sales Revenue, Net [Member]
Concentration of risk, percentage		10.00%	0.00%

[1] North America includes revenue from the United States of $492.6 million and $473.1 million for the three months ended March 31, 2016 and 2015, respectively. EMEA includes revenue from Switzerland of $113.3 million and $117.5 million for the three months ended March 31, 2016 and 2015, respectively. There were no other individual countries that represented more than 10% of consolidated total revenue for the three months ended March 31, 2016 and 2015.

[2] Includes revenue from deals with local and national merchants and through local events.

[3] Includes gross profit from deals with local and national merchants and through local events.