Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Disposal Group Income Statement [Abstract]
Third party and other revenue	$ 334,568	$ 360,121
Direct revenue	397,403	390,235
Third party and other cost of revenue	(46,781)	(51,697)
Direct cost of revenue	(345,862)	(351,253)
Marketing expense	(89,765)	(52,533)
Selling, general and administrative expense	(280,988)	(289,847)
Other income, net	$ (3,486)	19,927
Loss from discontinued operations before provision for income taxes		(20,492)
Provision for income taxes		26,776
Income (loss) from discontinued operations, net of tax		6,284
Discontinued Operations, Disposed of by Sale [Member]
Disposal Group Income Statement [Abstract]
Third party and other revenue		17,883
Direct revenue		24,823
Third party and other cost of revenue		(9,524)
Direct cost of revenue		(25,949)
Marketing expense		(5,023)
Selling, general and administrative expense		(22,763)
Other income, net		$ 61