Earnings Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Share

The following table presents the calculation of basic and diluted net income per share attributable to common stockholders for the years ended December 31, 2014, 2013 and 2012:

		Year Ended December 31, 2014
		Income (Numerator)			Shares (Denominator)		Per  Share Amount
	(in thousands, except per share data)
Net income		$	24,263
Preferred stock tax distributions			(320	)
Basic EPS
Net income attributable to common stockholders			23,943			73,571	$	0.33
Effect of Dilutive Securities
Preferred stock			320			4,980
Stock options			—			3,147
Diluted EPS
Net income attributable to common stockholders		$	24,263			81,698	$	0.30

		Year Ended December 31, 2013
		Income (Numerator)			Shares (Denominator)		Per Share Amount
	(in thousands, except per share data)
Net income		$	6,747
Preferred stock tax distributions			(1,073	)
Basic EPS
Net income attributable to common stockholders			5,674			40,681	$	0.14
Effect of Dilutive Securities
Preferred stock			1,073			14,390
Stock options			—			1,574
Diluted EPS
Net income attributable to common stockholders		$	6,747			56,645	$	0.12

		Year Ended December 31, 2012
		Income (Numerator)			Shares (Denominator)		Per Share Amount
	(in thousands, except per share data)
Net income		$	7,919
Preferred stock tax distributions			(402	)
Basic EPS
Net income attributable to common stockholders			7,517			31,320	$	0.24
Effect of Dilutive Securities
Preferred stock			402			11,185
Stock options			—			161
Diluted EPS
Net income attributable to common stockholders		$	7,919			42,666	$	0.19