Schedule of Statement of Operations Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Revenue	$ 1,401,860		$ 1,199,020		$ 3,619,244		$ 3,055,488
Costs and expenses:
Cost of revenue	276,318	[1]	243,633	[1]	789,506	[1]	673,472	[1]
Selling and marketing	625,296	[1],[2]	505,756	[1],[2]	1,711,919	[1],[2]	1,327,401	[1],[2]
Technology and content	143,816	[1]	125,617	[1]	422,781	[1]	350,554	[1]
General and administrative	92,351	[1]	85,140	[1]	276,618	[1]	246,936	[1]
Amortization of intangible assets	18,514		9,474		49,921		21,527
Legal reserves, occupancy tax and other	6,874		2,310		74,678		5,384
Acquistion-related and other					66,472	[1]
Operating income	238,691		227,090		227,349		430,214
Other income (expense):
Other, net	(26,611)		(22,752)		(47,117)		(64,185)
Total other expense, net	(26,611)		(22,752)		(47,117)		(64,185)
Income before income taxes	212,080		204,338		180,232		366,029
Provision for income taxes	(45,356)		(36,150)		(57,861)		(70,145)
Income (loss) from continuing operations	166,724		168,188		122,371		295,884
Discontinued operations, net of taxes			1,543				(22,346)
Net income	166,724		169,731		122,371		273,538
Net (income) loss attributable to noncontrolling interests	4,135		1,746		15,762		(101)
Net income (loss) attributable to Expedia, Inc.	170,859		171,477		138,133		273,437
Comprehensive income (loss) attributable to Expedia, Inc.	196,662		185,654		147,300		278,203
Parent
Other income (expense):
Equity in pre-tax earnings (losses) of consolidated subsidiaries	184,034		183,803		175,368		333,172
Other, net	(20,698)		(20,835)		(62,378)		(62,536)
Total other expense, net	163,336		162,968		112,990		270,636
Income before income taxes	163,336		162,968		112,990		270,636
Provision for income taxes	7,523		6,966		25,143		25,147
Income (loss) from continuing operations			169,934				295,783
Discontinued operations, net of taxes			1,543				(22,346)
Net income	170,859		171,477		138,133		273,437
Net income (loss) attributable to Expedia, Inc.	170,859		171,477		138,133		273,437
Comprehensive income (loss) attributable to Expedia, Inc.	170,859		171,477		138,133		273,437
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenue	1,109,955		1,039,520		2,934,567		2,664,255
Costs and expenses:
Cost of revenue	213,432		194,103		613,923		550,129
Selling and marketing	408,946		374,409		1,157,873		990,527
Technology and content	99,450		90,427		292,459		260,231
General and administrative	55,772		55,112		160,599		161,570
Amortization of intangible assets	280		1,555		2,761		4,888
Legal reserves, occupancy tax and other	6,874		2,310		74,678		5,384
Intercompany (income) expense, net	134,901		207,291		534,141		521,952
Operating income	190,300		114,313		98,133		169,574
Other income (expense):
Equity in pre-tax earnings (losses) of consolidated subsidiaries	75,000		112,800		115,901		251,410
Other, net	2,676		(3,871)		20,881		(39,564)
Total other expense, net	77,676		108,929		136,782		211,846
Income before income taxes	267,976		223,242		234,915		381,420
Provision for income taxes	(78,275)		(38,609)		(54,395)		(45,614)
Income (loss) from continuing operations			184,633				335,806
Net income	189,701		184,633		180,520		335,806
Net income (loss) attributable to Expedia, Inc.	189,701		184,633		180,520		335,806
Comprehensive income (loss) attributable to Expedia, Inc.	190,388		184,921		179,830		336,580
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenue	310,177		160,882		719,407		395,282
Costs and expenses:
Cost of revenue	61,517		48,996		172,065		122,354
Selling and marketing	235,871		133,420		592,234		342,646
Technology and content	44,355		35,232		130,309		90,773
General and administrative	36,710		29,829		116,092		84,182
Amortization of intangible assets	18,234		7,919		47,160		16,639
Acquistion-related and other					66,472
Intercompany (income) expense, net	(134,901)		(207,291)		(534,141)		(521,952)
Operating income	48,391		112,777		129,216		260,640
Other income (expense):
Other, net	(8,589)		1,954		(5,620)		37,915
Total other expense, net	(8,589)		1,954		(5,620)		37,915
Income before income taxes	39,802		114,731		123,596		298,555
Provision for income taxes	25,396		(4,507)		(28,609)		(49,678)
Income (loss) from continuing operations			110,224				248,877
Net income	65,198		110,224		94,987		248,877
Net (income) loss attributable to noncontrolling interests	4,135		1,746		15,762		(101)
Net income (loss) attributable to Expedia, Inc.	69,333		111,970		110,749		248,776
Comprehensive income (loss) attributable to Expedia, Inc.	94,449		125,859		120,606		252,768
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenue	(18,272)		(1,382)		(34,730)		(4,049)
Costs and expenses:
Cost of revenue	1,369		534		3,518		989
Selling and marketing	(19,521)		(2,073)		(38,188)		(5,772)
Technology and content	11		(42)		13		(450)
General and administrative	(131)		199		(73)		1,184
Other income (expense):
Equity in pre-tax earnings (losses) of consolidated subsidiaries	(259,034)		(296,603)		(291,269)		(584,582)
Total other expense, net	(259,034)		(296,603)		(291,269)		(584,582)
Income before income taxes	(259,034)		(296,603)		(291,269)		(584,582)
Income (loss) from continuing operations			(296,603)				(584,582)
Net income	(259,034)		(296,603)		(291,269)		(584,582)
Net income (loss) attributable to Expedia, Inc.	(259,034)		(296,603)		(291,269)		(584,582)
Comprehensive income (loss) attributable to Expedia, Inc.	$ (259,034)		$ (296,603)		$ (291,269)		$ (584,582)

[1] Includes stock-based compensation as follows: Cost of revenue $ 887 $ 781 $ 2,712 $ 2,503 Selling and marketing 3,943 2,881 11,857 10,574 Technology and content 5,372 3,957 15,459 12,115 General and administrative 7,837 7,719 22,532 23,718 Acquisition-related and other - - 56,643 -

[2] Includes related party amounts as follows: $ 56,162 $ 57,258 $ 171,286 $ 164,339