Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

The following table summarizes stock option activity for the years ended December 31, 2014 and 2013 (shares and intrinsic values in thousands):

	Number of shares		Weighted- average exercise price		Weighted- average remaining contractual term		Aggregate intrinsic value
Outstanding at January 1, 2013		—		—		—		—
Granted		1,730	$	11.20		9.3	$	1,157
Exercised		—		—		—		—
Forfeited or expired		—		—		—		—

Outstanding at December 31, 2013		1,730	$	11.20		9.3	$	2,208
Granted		140		11.56		9.7		—
Exercised		—		—		—		—
Forfeited or expired		—		—		—		—

Outstanding at December 31, 2014		1,870	$	11.23		8.4	$	4,721


Vested at December 31, 2014		670	$	11.07		8.2	$	1,787


Exercisable at December 31, 2014		670	$	11.07		8.2	$	1,787

The following table summarizes restricted share activity for the years ended December 31, 2014 and 2013 (shares in thousands):

	Number of shares			Weighted-average grant date fair value
Outstanding at January 1, 2013		—		$	—
Granted		1,195			9.81
Vested		(250	)		8.41
Forfeited		—			—

Outstanding at December 31, 2013		945		$	10.18
Granted		79			11.34
Vested		(305	)		11.33
Forfeited		—			—

Outstanding at December 31, 2014		719		$	9.82

Black-Scholes Option Valuation Assumptions	2014	2013
Risk-free interest rate	1.76% - 1.92%	.93% - 2.03%
Dividend yield	—	—
Volatility	28.4% - 30.9%	34.4% - 36.7%
Weighted-average expected term (years)	6.0 - 6.3	6.0

Monte Carlo Option Valuation Assumptions	2014	2013
Risk-free intererst rate	—	1.78%
Dividend yield	—	—
Volatility	—	36.70%
Weighted-average expected term (years)	—	5.4 - 5.8

Monte Carlo Option Valuation Assumptions	2014		2013
Risk-free interest rate		—		0.52	%
Dividend yield		—		—
Volatility		—		36.70	%
Weighted-average expected term (years)		—		0.6 - 1.3