Earnings Per Share - Basic and Diluted earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net income attributable to Expedia, Inc.	$ 79,457	$ 279,331	$ 31,649	$ (108,589)	$ (12,538)	$ 283,216	$ 449,644	$ 44,143	$ 281,848	$ 764,465	$ 398,097
Basic (in dollars per share)									$ 1.87	$ 5.87	$ 3.09
Diluted (in dollars per share)									$ 1.82	$ 5.70	$ 2.99
Weighted average number of shares outstanding:
Basic (in shares)									150,367	130,159	128,912
Dilutive effect of:
Options to purchase common stock									3,874	3,685	4,149
Other dilutive securities									276	174	107
Diluted (in shares)									154,517	134,018	133,168