Guarantor and Non-Guarantor Supplemental Financial Information - Schedule of Statement of Operations Information (Details) - USD ($) $ in Thousands		3 Months Ended									12 Months Ended
		Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Condensed Income Statements, Captions [Line Items]
Revenue		$ 2,092,829	$ 2,580,905	$ 2,195,869	$ 1,903,961	$ 1,698,567	$ 1,937,753	$ 1,662,600	$ 1,373,397		$ 8,773,564		$ 6,672,317		$ 5,763,485
Costs and expenses:
Cost of revenue	[1]										1,596,698		1,309,559		1,179,081
Selling and marketing	[1]										4,367,417		3,381,086		2,808,329
Technology and content	[1]										1,235,019		830,244		686,154
General and administrative	[1]										678,292		573,913		425,373
Amortization of intangible assets											317,141		156,458		76,773
Impairment of intangible assets		33,000									34,890		7,207		2,842
Legal reserves, occupancy tax and other											26,498		(104,587)		41,539
Restructuring and related reorganization charges						23,000				$ 26,000	55,907	[1]	104,871	[1]	25,630	[1]
Intercompany (income) expense, net											0		0		0
Operating income		147,186	386,152	25,662	(97,298)	29,477	344,998	90,092	(51,001)		461,702		413,566		517,764
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries											0		0		0
Gain on sale of business											0		508,810		0
Other, net											(185,102)		3,586		(53,123)
Total other income (expense), net											(185,102)		512,396		(53,123)
Income before income taxes											276,600		925,962		464,641
Provision for income taxes											(15,315)		(203,214)		(91,691)
Net income											261,285		722,748		372,950
Net income (loss) attributable to noncontrolling interests											20,563		41,717		25,147
Net income attributable to Expedia, Inc.		$ 79,457	$ 279,331	$ 31,649	$ (108,589)	$ (12,538)	$ 283,216	$ 449,644	$ 44,143		281,848		764,465		398,097
Comprehensive income attributable to Expedia, Inc.											280,297		618,345		241,126
Reportable Legal Entities | Parent
Condensed Income Statements, Captions [Line Items]
Revenue											0		0		0
Costs and expenses:
Cost of revenue											0		0		0
Selling and marketing											0		0		0
Technology and content											0		0		0
General and administrative											0		0		0
Amortization of intangible assets											0		0		0
Impairment of intangible assets											0		0		0
Legal reserves, occupancy tax and other											0		0		0
Restructuring and related reorganization charges											0		0		0
Intercompany (income) expense, net											0		0		0
Operating income											0		0		0
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries											383,883		839,779		455,831
Gain on sale of business													0
Other, net											(162,455)		(119,451)		(91,569)
Total other income (expense), net											221,428		720,328		364,262
Income before income taxes											221,428		720,328		364,262
Provision for income taxes											60,420		44,137		33,835
Net income											281,848		764,465		398,097
Net income (loss) attributable to noncontrolling interests											0		0		0
Net income attributable to Expedia, Inc.											281,848		764,465		398,097
Comprehensive income attributable to Expedia, Inc.											280,297		763,202		398,097
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenue											6,807,279		5,194,549		4,500,723
Costs and expenses:
Cost of revenue											1,263,828		1,009,785		898,647
Selling and marketing											3,071,762		2,347,919		1,913,719
Technology and content											903,444		584,560		472,762
General and administrative											429,015		373,162		243,793
Amortization of intangible assets											248,634		58,524		1,848
Impairment of intangible assets											0		0		0
Legal reserves, occupancy tax and other											26,498		(104,587)		41,539
Restructuring and related reorganization charges											30,322		76,422		5,020
Intercompany (income) expense, net											656,273		742,010		666,675
Operating income											177,503		106,754		256,720
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries											286,016		870,108		282,769
Gain on sale of business													0
Other, net											(21,206)		64,576		34,223
Total other income (expense), net											264,810		934,684		316,992
Income before income taxes											442,313		1,041,438		573,712
Provision for income taxes											(50,168)		(194,251)		(110,929)
Net income											392,145		847,187		462,783
Net income (loss) attributable to noncontrolling interests											0		0		0
Net income attributable to Expedia, Inc.											392,145		847,187		462,783
Comprehensive income attributable to Expedia, Inc.											373,649		822,898		463,075
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenue											2,267,516		1,682,677		1,389,979
Costs and expenses:
Cost of revenue											346,200		308,463		274,788
Selling and marketing											1,583,993		1,230,059		1,027,798
Technology and content											331,230		245,495		213,159
General and administrative											249,185		200,268		181,228
Amortization of intangible assets											68,507		97,934		74,925
Impairment of intangible assets											34,890		7,207		2,842
Legal reserves, occupancy tax and other											0		0		0
Restructuring and related reorganization charges											25,585		28,449		20,610
Intercompany (income) expense, net											(656,273)		(742,010)		(666,415)
Operating income											284,199		306,812		261,044
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries											0		0		0
Gain on sale of business													508,810
Other, net											(1,441)		58,461		4,223
Total other income (expense), net											(1,441)		567,271		4,223
Income before income taxes											282,758		874,083		265,267
Provision for income taxes											(25,567)		(53,100)		(14,597)
Net income											257,191		820,983		250,670
Net income (loss) attributable to noncontrolling interests											20,563		41,717		25,147
Net income attributable to Expedia, Inc.											277,754		862,700		275,817
Comprehensive income attributable to Expedia, Inc.											238,299		742,132		118,554
Eliminations
Condensed Income Statements, Captions [Line Items]
Revenue											(301,231)		(204,909)		(127,217)
Costs and expenses:
Cost of revenue											(13,330)		(8,689)		5,646
Selling and marketing											(288,338)		(196,892)		(133,188)
Technology and content											345		189		233
General and administrative											92		483		352
Amortization of intangible assets											0		0		0
Impairment of intangible assets											0		0
Legal reserves, occupancy tax and other											0		0		0
Restructuring and related reorganization charges											0		0		0
Intercompany (income) expense, net											0		0		(260)
Operating income											0		0		0
Other income (expense):
Equity in pre-tax earnings of consolidated subsidiaries											(669,899)		(1,709,887)		(738,600)
Gain on sale of business													0
Other, net											0		0		0
Total other income (expense), net											(669,899)		(1,709,887)		(738,600)
Income before income taxes											(669,899)		(1,709,887)		(738,600)
Provision for income taxes											0		0		0
Net income											(669,899)		(1,709,887)		(738,600)
Net income (loss) attributable to noncontrolling interests											0		0		0
Net income attributable to Expedia, Inc.											(669,899)		(1,709,887)		(738,600)
Comprehensive income attributable to Expedia, Inc.											$ (611,948)		$ (1,709,887)		$ (738,600)

[1] (1) Includes stock-based compensation as follows: Cost of revenue$11,388 $5,307 $3,921Selling and marketing46,654 33,164 18,067Technology and content63,536 26,766 22,100General and administrative108,149 80,082 40,923Restructuring and related reorganization charges12,690 32,749 —