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Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

Equity-Based Compensation

Schedule of stock options awards activity

		Plan Options		Weighted Average Exercise Price
Options outstanding at December 31, 2013		1,861,761		$	26.09
Options granted		542,750		74.52
Options exercised		(338,549	)	19.72
Options cancelled or forfeited		(108,204	)	44.57
Options outstanding at September 30, 2014		1,957,758		$	39.62
Vested and exercisable at September 30, 2014		632,994		$	20.56

Schedule of weighted average assumptions used in the fair value calculation

		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
Expected term (in years)		—		6.3		6.3-10		6.3
Volatility		—	%	49	%	49	%	49	%
Risk-free interest rate		—	%	1.0-1.5	%	2.1-2.8	%	1.0-1.5	%
Dividend yield		—	%	0	%	0	%	0	%

Schedule of restricted stock units ("RSUs") activity

		Plan Options		Weighted Average Fair Value
Non-vested balance at December 31, 2013		10,000		$	47.17
Units granted		640,975		83.19
Units vested		(3,125	)	47.17
Units cancelled or forfeited		(18,850	)	81.36
Non-vested balance at September 30, 2014		629,000		$	82.85

Summary of non-cash equity-based compensation expense included in the Company's statement of operations

		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
Cost of revenue		$	336		$	126		$	953		$	291
Sales and marketing		819			358			2,689			865
Product development		1,805			406			4,529			990
General and administrative		3,374			962			7,557			2,276
Total		$	6,334		$	1,852		$	15,728		$	4,422

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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