Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Net income attributable to Expedia, Inc.	$ 279,331	$ 283,216	$ 202,391	$ 777,003
Basic (in dollars per share)	$ 1.86	$ 2.18	$ 1.35	$ 6.03
Diluted (in dollars per share)	$ 1.81	$ 2.12	$ 1.31	$ 5.86
Weighted average number of shares outstanding: Basic	150,239	129,989	150,281	128,822
Options to purchase common stock	3,745	3,287	3,815	3,656
Other dilutive securities	252	141	236	124
Weighted average number of shares outstanding, Diluted	154,236	133,417	154,332	132,602