Earnings Per Share Attributable to Common Stockholders (Tables)

6 Months Ended

Jun. 30, 2015

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 three and six months ended June 30, 2015 and 2014:

	Three Months Ended June 30, 2015						Three Months Ended June 30, 2014
	Income (Numerator)		Shares (Denominator)		Per  Share Amount		Income (Numerator)			Shares (Denominator)		Per  Share Amount
	(in thousands, except per share data)
Net income	$	9,352					$	2,692
Preferred stock tax distributions		—						(320	)
Basic EPS
Net income attributable to common stockholders		9,352		84,116	$	0.11		2,372			78,042	$	0.03
Effect of Dilutive Securities
Preferred stock		—		—				320			636
Stock options		—		1,702				—			3,396
Restricted stock units and restricted stock awards		—		15				—			—
Diluted EPS
Net income attributable to common stockholders	$	9,352		85,833	$	0.11	$	2,692			82,074	$	0.03

	Six Months Ended June 30, 2015						Six Months Ended June 30, 2014
	Income (Numerator)		Shares (Denominator)		Per  Share Amount		Income (Numerator)			Shares (Denominator)		Per  Share Amount
	(in thousands, except per share data)
Net income	$	19,922					$	7,045
Preferred stock tax distributions		—						(320	)
Basic EPS
Net income attributable to common stockholders		19,922		83,449	$	0.24		6,725			66,626	$	0.10
Effect of Dilutive Securities
Preferred stock		—		—				320			9,960
Stock options		—		2,008				—			3,268
Restricted stock units and restricted stock awards		—		8				—			—
Diluted EPS
Net income attributable to common stockholders	$	19,922		85,465	$	0.23	$	7,045			79,854	$	0.09