The computations of basic and diluted net income per share are set forth as follows:

	Three Months Ended June 30,
	2014		2013

	(in thousands, except per share data)
Numerator:
Net income attributable to common stockholders	$	12,167	$	13,663
Net income allocated to participating securities		(11)		(16)
Numerator for basic net income per share		12,156		13,647
Dividends on Series A Preferred Stock		-		1,750
Dividends on Series B Preferred Stock		1,102		-
Numerator for diluted net income per share	$	13,258	$	15,397

Denominator:
Denominator for basic net income per share - weighted average outstanding common shares		86,793		76,900
Dilutive effect of stock options		9		-
Dilutive effect of contingently issuable shares		27		28
Dilutive effect of Series A Preferred Stock		-		10,602
Dilutive effect of Series B Preferred Stock		8,824		-
Denominator for diluted net income per share		95,653		87,530

Net income per share attributable to common stockholders - basic	$	0.14	$	0.18
Net income per share attributable to common stockholders - diluted	$	0.14	$	0.18

For the three months ended June 30, 2014, warrants to purchase 0.3 million shares of common stock and options to purchase 4.3 million shares of common stock were not included in the computation of diluted net income per share as the effect would be anti-dilutive. In addition, 10.6 million shares of Series A Preferred Stock, which represent the weighted-average number of shares of common stock calculated using the as-if converted method, were also excluded from the calculation of diluted net income per share, as the effect would be anti-dilutive. For the three months ended June 30, 2014, 1.4 million unvested RSUs were excluded from the computation of basic and diluted net income per share.

For the three months ended June 30, 2013, warrants to purchase 0.3 million shares of common stock and options to purchase 5.1 million shares of common stock were not included in the computation of diluted net income per share as the effect would be anti-dilutive. Additionally, for the three months ended June 30, 2013, 1.0 million unvested RSUs were excluded from the computation of basic and diluted net income per share.

	Six Months Ended June 30,
	2014		2013

	(in thousands, except per share data)
Numerator:
Net income attributable to common stockholders	$	26,960	$	26,847
Net income allocated to participating securities		(30)		(37)
Numerator for basic net income per share		26,930		26,810
Dividends on Series A Preferred Stock		-		3,500
Dividends on Series B Preferred Stock		1,102		-
Numerator for diluted net income per share	$	28,032	$	30,310

Denominator:
Denominator for basic net income per share - weighted average outstanding common shares		81,964		76,834
Dilutive effect of stock options		4		-
Dilutive effect of contingently issuable shares		40		41
Dilutive effect of Series A Preferred Stock		-		10,602
Dilutive effect of Series B Preferred Stock		4,436		-
Denominator for diluted net income per share		86,444		87,477

Net income attributable to common stockholders per share - basic	$	0.33	$	0.35
Net income attributable to common stockholders per share - diluted	$	0.32	$	0.35