Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Reconciliation of weighted average number of shares of common stock outstanding

	Three months ended March 31,
	2013		2012
Numerator:
Net income attributable to TripAdvisor	$	62,299	$	48,111
Denominator:
Weighted average shares used to compute Basic EPS		143,063		133,754
Weighted average effect of dilutive securities:
Stock options		1,401		1,132
RSUs		191		194
Stock warrants		—		1,078
Weighted average shares used to compute Diluted EPS		144,655		136,158
Basic EPS	$	0.44	$	0.36
Diluted EPS	$	0.43	$	0.35

Calculation of diluted net income per share related to stock options and RSUs

	Three Months Ended March 31,
	2013(1)		2012(2)
Stock options		4,577		1,821
RSUs		—		60
Total		4,577		1,881

(1) These totals do not include performance based options representing the right to acquire 210,000 shares of common stock for which all targets required to trigger vesting have not been achieved as of March 31, 2013; therefore, such awards were excluded from the calculation of weighted average shares used to compute diluted earnings per share for those reporting periods.

(2) These totals do not include performance based RSUs representing the right to acquire 400,000 shares of common stock for which all targets required to trigger vesting had not been achieved as of March 31, 2012; therefore, such awards were excluded from the calculation of weighted average shares used to compute diluted earnings per share for those reporting periods.