Stockholder's Equity (Tables)

6 Months Ended

Jun. 30, 2014

The following table summarizes stock option activity for the six months ended June 30, 2014 (shares and intrinsic value in thousands):

	Number of shares	Weighted-average exercise price		Weighted-average remaining contractual term	Aggregate intrinsic value
Outstanding at December 31, 2013	1,730	$	11.20	9.3	$	2,208
Granted	80	11.51		9.9	—
Exercised	—	—		—	—
Forfeited	—	—		—	—
Expired	—	—		—	—
Outstanding at June 30, 2014	1,810	$	11.21	8.9	$	3,228
Vested at June 30, 2014	608	$	11.05	8.8	$	1,180
Exercisable at June 30, 2014	608	$	11.05	8.8	$	1,180

The following table summarizes restricted share activity for the six months ended June 30, 2014 (shares in thousands)

	Number of shares		Weighted-average grant date fair value
Outstanding at December 31, 2013	945		$	10.18
Granted	79		11.34
Vested	(285	)	11.25
Forfeited	—		—
Outstanding at June 30, 2014	739		$	9.89

Time Based Stock Option [Member] | Black Scholes Pricing Model [Member]

Black-Scholes Option Valuation Assumptions	Six Months Ended June 30, 2014	2013
Risk-free interest rate	1.76%-1.81%	.93%-2.03%
Dividend yield	—	—
Volatility	28.4%	34.4%-36.7%
Weighted-average expected term (years)	6.0-6.3	6.0

Event Based Stock Option [Member] | Monte Carlo Simulation Model [Member]

Monte Carlo Option Valuation Assumptions	Six Months Ended June 30, 2014	2013
Risk-free intererst rate	—	1.78%
Dividend yield	—	—
Volatility	—	36.7%
Weighted-average expected term (years)	—	5.4-5.8

Event Based Restricted Stock [Member] | Monte Carlo Simulation Model [Member]

Monte Carlo Option Valuation Assumptions	Six Months Ended June 30, 2014	2013
Risk-free interest rate	—	0.52%
Dividend yield	—	—
Volatility	—	36.7%
Weighted-average expected term (years)	—	0.6-1.3