Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

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

Stock-Based Compensation Expense

Stock-based compensation expense was recognized in the Consolidated Statements of Operations as follows:

	Year Ended December 31,
	2015		2014		2013
	(In thousands)
General and administrative expense	$	1,611	$	1,935	$	1,821
	$	1,611	$	1,935	$	1,821

Assumptions Used in Valuation of Option Granted

Assumptions used in the valuation of options granted in each period were as follows:

	Year Ended December 31,
	2015		2014		2013
Service-Based Options
Dividend yield	0	%	0	%	0	%
Expected volatility	26	%	32	%	52	%
Average expected option life	5 years		5 years		5 years
Risk-free interest rate	1.5	%	1.7	%	1.3	%
			Year Ended December 31,
			2014		2013
Performance-Based Options
Dividend yield			0	%	0	%
Expected volatility			32	%	46	%
Average expected option life			4.8 years		4.7 years
Risk-free interest rate			1.7	%	1.8	%

Option Activity

Option activity of the Company is summarized below:

	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value
	(In thousands)				(In years)	(In thousands)
Outstanding at December 31, 2012	3,287		$	10.72
Options granted	120		15.61
Options exercised	(612	)	8.44
Options canceled/forfeited	(967	)	9.38
Outstanding at December 31, 2013	1,828		12.51
Options granted	31		19.38
Options exercised	(365	)	11.48
Options canceled/forfeited	(178	)	13.58
Outstanding at December 31, 2014	1,316		12.81
Options granted	31		17.26
Options exercised	(155	)	13.12
Options canceled/forfeited	(107	)	13.06
Outstanding at December 31, 2015	1,085		12.86		3.78	$	2,819
Options exercisable at December 31, 2015	422		12.14		2.38	1,351
Options vested and expected to vest at December 31, 2015	1,085		12.86		3.78	2,819
Shares available for future grant	2,345

Deferred Stock Unit, Performance-Based Stock Unit and Restricted Stock Activity

Deferred stock unit, performance-based stock unit and restricted stock activity are summarized below:

	Shares		Weighted Average Grant Date Fair Value
	(In thousands)
Unvested at December 31, 2013	317		$	15.34
Granted	231		19.67
Vested	(78	)	17.91
Forfeited	(15	)	15.61
Unvested at December 31, 2014	455		17.09
Granted	286		15.02
Vested	(64	)	17.42
Forfeited	(7	)	18.76
Unvested at December 31, 2015	670		16.16