Schedule of Statement of Operations Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Revenue	$ 1,012,367		$ 816,488
Costs and expenses:
Cost of revenue	250,581	[1]	200,098	[1]
Selling and marketing	496,155	[1]	377,072	[1]
Technology and content	138,283	[1]	108,911	[1]
General and administrative	92,376	[1]	78,578	[1]
Amortization of intangible assets	12,570		3,422
Legal reserves, occupancy tax and other	61,558		(276)
Acquistion-related and other	66,472	[1]
Operating income (loss)	(105,628)		48,683
Other income (expense):
Other, net	(13,643)		(21,856)
Total other expense, net	(13,643)		(21,856)
Income before income taxes	(119,271)		26,827
Provision for income taxes	11,903		(5,240)
Income from continuing operations	(107,368)		21,587
Discontinued operations, net of taxes			(23,889)
Net income (loss)	(107,368)		(2,302)
Net income attributable to noncontrolling interests	3,142		(979)
Net income (loss) attributable to Expedia, Inc.	(104,226)		(3,281)
Comprehensive income (loss) attributable to Expedia, Inc.	(128,290)		11,061
Parent
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries	(93,275)		32,344
Other, net	(20,883)		(20,806)
Total other expense, net	(114,158)		11,538
Income before income taxes	(114,158)		11,538
Provision for income taxes	9,932		9,070
Income from continuing operations			20,608
Discontinued operations, net of taxes			(23,889)
Net income (loss)	(104,226)		(3,281)
Net income (loss) attributable to Expedia, Inc.	(104,226)		(3,281)
Comprehensive income (loss) attributable to Expedia, Inc.	(104,226)		(3,281)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenue	850,099		723,520
Costs and expenses:
Cost of revenue	195,480		169,097
Selling and marketing	355,966		281,048
Technology and content	98,963		82,733
General and administrative	57,629		51,725
Amortization of intangible assets	1,313		1,760
Legal reserves, occupancy tax and other	61,558		(276)
Intercompany (income) expense, net	162,444		142,747
Operating income (loss)	(83,254)		(5,314)
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries	(38,328)		34,162
Other, net	2,967		(137)
Total other expense, net	(35,361)		34,025
Income before income taxes	(118,615)		28,711
Provision for income taxes	26,705		4,319
Income from continuing operations			33,030
Net income (loss)	(91,910)		33,030
Net income (loss) attributable to Expedia, Inc.	(91,910)		33,030
Comprehensive income (loss) attributable to Expedia, Inc.	(92,126)		33,791
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenue	167,135		94,672
Costs and expenses:
Cost of revenue	54,422		30,678
Selling and marketing	145,783		98,141
Technology and content	39,317		26,197
General and administrative	34,702		26,744
Amortization of intangible assets	11,257		1,662
Acquistion-related and other	66,472
Intercompany (income) expense, net	(162,444)		(142,747)
Operating income (loss)	(22,374)		53,997
Other income (expense):
Other, net	4,273		(913)
Total other expense, net	4,273		(913)
Income before income taxes	(18,101)		53,084
Provision for income taxes	(24,734)		(18,629)
Income from continuing operations			34,455
Net income (loss)	(42,835)		34,455
Net income attributable to noncontrolling interests	3,142		(979)
Net income (loss) attributable to Expedia, Inc.	(39,693)		33,476
Comprehensive income (loss) attributable to Expedia, Inc.	(63,541)		47,057
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenue	(4,867)		(1,704)
Costs and expenses:
Cost of revenue	679		323
Selling and marketing	(5,594)		(2,117)
Technology and content	3		(19)
General and administrative	45		109
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries	131,603		(66,506)
Total other expense, net	131,603		(66,506)
Income before income taxes	131,603		(66,506)
Income from continuing operations			(66,506)
Net income (loss)	131,603		(66,506)
Net income (loss) attributable to Expedia, Inc.	131,603		(66,506)
Comprehensive income (loss) attributable to Expedia, Inc.	$ 131,603		$ (66,506)

[1] Includes stock-based compensation as follows: Cost of revenue $ 1,061 $ 919 Selling and marketing 4,265 4,445 Technology and content 5,395 4,284 General and administrative 7,714 7,303 Acquisition-related and other 56,643 -