Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share Disclosure [Line Items]
Net income (loss) attributable to Expedia, Inc.	$ 89,373	$ 71,500	$ 75,069	$ (32,726)
Earnings (loss) per share attributable to Expedia, Inc. available to common stockholders:
Basic	$ 0.69	$ 0.52	$ 0.58	$ (0.24)
Diluted	$ 0.67	$ 0.51	$ 0.56	$ (0.24)
Weighted average number of shares outstanding: Basic	129,538	136,351	130,046	135,998
Options to purchase common stock	4,030	4,594	4,235
Other dilutive securities	100	167	118
Weighted average number of shares outstanding, Diluted	133,668	141,112	134,399	135,998