Defined contribution plan automatic enrollment feature pre tax percentage.

No definition available.

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- Definition

The Company matches 50% of the first 6% of the employees salary.

+ References

No definition available.

+ Details

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- Definition

Defined contribution plan maximum annual contribution percent by employee.

+ References

No definition available.

+ Details

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- Definition

Defined contribution plan maximum annual contribution percent by employee of pretax salary.

+ References

No definition available.

+ Details

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- Definition

Defined contribution plan required service period for vesting under plan.

+ References

No definition available.

+ Details

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- Definition

The number of annual installments that participants in the Deferred Compensation Plan will receive upon termination.

+ References

No definition available.

+ Details

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

+ Details

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

+ Details

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- Details

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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Employee Benefit Plans - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified			12 Months Ended	0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Maximum [Member] Installment	Nov. 02, 2011 Trip Advisor [Member]	Dec. 31, 2013 Trip Advisor [Member]	Dec. 31, 2012 Trip Advisor [Member]	Nov. 02, 2011 Expedia [Member]	Dec. 31, 2011 Expedia [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of contribution of pretax salary				50.00%			50.00%
Maximum employer contribution				50.00%			50.00%
Percentage of employee contributions to the plan				6.00%			6.00%
Percentage of participant`s eligible earnings				3.00%	10.00%		3.00%
Contributions vested with the employees				2 years			2 years
Contributions to plans					$ 4.8	$ 3.1		$ 2.0
Automatic enrollment feature pre-tax				3.00%
No of installments for payments upon termination			5
Common stock available for issuance to non-employee directors					100,000
Common stock, shares issued	131,537,798	130,060,138			0