Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share Disclosure [Line Items]
Net income (loss) attributable to Expedia, Inc.	$ 31,649	$ (108,589)	$ 449,644	$ (76,940)	$ 493,787
Earnings (loss) per share attributable to Expedia, Inc. available to common stockholders:
Basic	$ 0.21	$ (0.72)	$ 3.49	$ (0.51)	$ 3.85
Diluted	$ 0.21	$ (0.72)	$ 3.38	$ (0.51)	$ 3.74
Weighted average number of shares outstanding: Basic	149,552		128,887	150,332	128,229
Options to purchase common stock	3,753		3,954		3,840
Other dilutive securities	227		119		115
Weighted average number of shares outstanding, Diluted	153,532		132,960	150,332	132,184