STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of non-cash compensation expense related to equity awards

Non-cash compensation related to equity awards is included in the following line items in the accompanying consolidated statements of operations and comprehensive income (in thousands):



	Year Ended December 31,
	2016		2015		2014
Cost of revenue	$	129	$	95	$	32
Selling and marketing expense	2,722		1,597		901
General and administrative expense	4,699		5,120		5,148
Product development	2,097		1,558		1,196
Restructuring and severance	—		138		169
Total non-cash compensation	$	9,647	$	8,508	$	7,446

Summary of changes in outstanding stock options

A summary of the changes in outstanding stock options is as follows:



	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value^(a)
			(per option)		(in years)	(in thousands)
Outstanding at December 31, 2015	1,918,182		$	18.85
Granted	86,149		79.46
Exercised	(6,093	)	38.58
Forfeited	(6,329	)	74.48
Expired	(107	)	117.95
Outstanding at December 31, 2016	1,991,802		$	21.23	5.16	$	159,754
Options exercisable	970,202		$	9.69	2.63	$	88,977

(a)

The aggregate intrinsic value represents the total pre-tax intrinsic value (the difference between the Company's closing stock price of $101.35 on the last trading day of 2016 and the exercise price, multiplied by the number of shares covered by in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2016. The intrinsic value changes based on the market value of the Company's common stock.

Summary of stock option valuation assumptions

For purposes of determining stock-based compensation expense, the weighted average grant date fair value per share of the stock options was estimated using the Black-Scholes option pricing model, which requires the use of various key assumptions. The weighted average assumptions used are as follows:



	Year Ended December 31,
	2016	2015	2014
Expected term ⁽¹⁾	5.22 - 6.38 years	5.21 - 6.23 years	5.75 - 6.63 years
Expected dividend ⁽²⁾	—	—	—
Expected volatility ⁽³⁾	48% - 53%	38% - 48%	36% - 64%
Risk-free interest rate ⁽⁴⁾	1.10% - 2.18%	1.65% - 2.01%	1.81% - 2.13%


(1)	The expected term of stock options granted was calculated using the 'Simplified Method', which utilizes the midpoint between the weighted average time of vesting and the end of the contractual term. This method was utilized for the stock options due to a lack of historical exercise behavior by the Company's employees.


(2)	For all stock options granted during the years ended December 31, 2016, 2015 and 2014, no dividends are expected to be paid over the contractual term of the stock options, resulting in a zero expected dividend rate.


(3)	The expected volatility rate is based on the historical volatility of the Company's common stock or a blended rate which includes the historical volatility of the Company's common stock and that of a peer group.


(4)	The risk-free interest rate is specific to the date of grant. The risk-free interest rate is based on U.S. Treasury yields for notes with comparable expected terms as the awards, in effect at the grant date.

Schedule of changes in outstanding non-vested RSUs, restricted stock and RSUs with performance conditions

Restricted Stock Units

A summary of the changes in outstanding nonvested RSUs is as follows:



	RSUs
	Number of Units		Weighted Average Grant Date Fair Value
			(per unit)
Nonvested at December 31, 2015	237,377		$	43.13
Granted ^(a)	78,334		76.52
Vested	(142,289	)	34.72
Forfeited	(21,048	)	61.35
Nonvested at December 31, 2016	152,374		$	65.64


(a)	The grant date fair value per share of the RSUs is calculated as the closing market price of LendingTree's common stock at the time of the grant.

The total fair value of RSUs that vested during the years ended December 31, 2016, 2015 and 2014 was $10.1 million, $11.0 million and $11.0 million, respectively.

Restricted Stock

A summary of the changes in outstanding nonvested restricted stock is as follows:



	Restricted Stock
	Number of Shares		Weighted Average Grant Date Fair Value
			(per share)
Nonvested at December 31, 2015	68,762		$	23.60
Granted ^(a)	—		—
Vested	(54,298	)	23.18
Forfeited	—		—
Nonvested at December 31, 2016	14,464		$	25.14


(a)	The grant date fair value per share of the restricted stock is calculated as the closing market price of LendingTree's common stock at the time of grant.

The total fair value of restricted stock that vested during the years ended December 31, 2016, 2015 and 2014 was $3.9 million, $4.1 million and $1.5 million, respectively.

Restricted Stock Units with Performance Conditions

During 2016, the Company granted RSUs with performance conditions to certain employees, of which vesting periods range from 0.33 years to 2.33 years, pending the attainment of certain performance targets set at the time of grant.

A summary of the changes in outstanding nonvested RSUs with performance conditions is as follows:



	RSUs with Performance Conditions
	Number of Units		Weighted Average Grant Date Fair Value
			(per unit)
Nonvested at December 31, 2015	—		$	—
Granted	56,761		87.27
Vested	(1,953	)	83.60
Forfeited	(10,299	)	83.60
Nonvested at December 31, 2016	44,509		$	88.28


(a)	The grant date fair value per share of the RSUs with performance conditions is calculated as the closing market price of LendingTree's common stock at the time of grant.

The total fair value of RSUs with performance conditions that vested during the year ended December 31, 2016 was $0.2 million.