Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

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

Stock-Based Compensation Expense

The Company includes total stock-based compensation expense related to all its stock awards in various operating expense categories for the years ended December 31, 2013, 2012 and 2011, as follows:

	Year Ended December 31,
	2013		2012		2011
	(In Thousands)
Product and content development	$	2,391	$	2,084	$	2,102
Sales and marketing	1,591		2,036		1,810
General and administrative	2,715		2,268		2,021
Total stock-based compensation	$	6,697	$	6,388	$	5,933

Summary of Stock Option Activity and Related Information, without Regard for Estimated Forfeitures

The following table represents a summary of the Company’s stock option activity under the 2009 and 2000 Plans and related information, without regard for estimated forfeitures, for the year ended December 31, 2013:

	Shares		Weighted Average Exercise Price
	(In Thousands)
Options outstanding at December 31, 2012	201		$	3.60
Options granted	150		12.97
Options exercised	(69	)	2.84
Options forfeited	(1	)	2.80
Options outstanding at December 31, 2013	281		$	8.79

Fair Value of Options Estimated using Black-Scholes Option Pricing Model

The fair value of the options granted during the year ended December 31, 2013 have been estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	Year to date December 31, 2013
	2013	2012
Expected term	3.75 years	N/A
Risk-free rate	1.4% - 1.6%	N/A
Expected volatility	37.0% - 37.1%	N/A
Dividend yield	—%	N/A

Information about Options Outstanding

	Options Outstanding				Options Exercisable
Exercise Prices	Number Outstanding as of December 31, 2013	Weighted Average Remaining Contractual Life (in Years)	Weighted Average Exercise Price		Number Exercisable as of December 31, 2013	Weighted Average Remaining Contractual Life (in Years)	Weighted Average Exercise Price
	(In Thousands)				(In Thousands)
$4.00	131	0.49	$	4.00	131	0.49	$	4.00
$12.97	150	4.73	$	12.97	—	0.00	$	—
	281	2.76	$	8.79	131	0.49	$	4.00

Restricted Stock Activity

The following table summarizes the activity for awards of restricted stock with service-based vesting terms for the year ended December 31, 2013:

	Restricted Stock		Weighted Average Grant Date Fair Value (per share)
	(In Thousands)
Unvested at December 31, 2012	1,539		$	9.38
Granted	1,620		10.21
Vested	(471	)	8.93
Forfeited	(378	)	9.62
Unvested at December 31, 2013	2,310		$	10.01

Shares Issued Under the Employee Stock Purchase Plan

During the years ended December 31, 2013 and 2012, the Company issued shares of common stock under the 2009 ESPP, as follows:

Offering Period Purchase Date	Number of Shares	Purchase Price
January 31, 2012	19,823	$	7.00
July 31, 2012	20,961	$	7.19
Total 2012	40,784
January 31, 2013	20,170	$	7.11
July 31, 2013	19,048	$	8.15
Total 2013	39,218

Fair Value of Employee Stock Purchase Plan Estimated using Black-Scholes Option Pricing Model

The fair value of 2009 ESPP rights have been estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	Year Ended December 31,
	2013	2012	2011
	ESPP Rights	ESPP Rights	ESPP Rights
Expected term	6 months	6 months	6 months
Risk-free rate	0.08% - 0.11%	0.14% - 0.15%	0.16% - 0.18%
Expected volatility	19.9% - 20.3%	8.3% - 29.4%	21.0% - 36.1%
Dividend yield	—%	—%	—%