Net Income per Share Attributable to Common Stockholders (Tables)

6 Months Ended

Jul. 31, 2014

Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock

The numerators and denominators of the basic and diluted EPS computations for our common stock are calculated as follows (in thousands, except per share data):

	Three Months Ended July 31,											Six Months Ended July 31,
	2014						2013					2014						2013
	Class A			Class B			Class A		Class B			Class A			Class B			Class A		Class B
Basic
Numerator
Net income	$	3,330		$	6,248		$	—	$	5,998		$	4,428		$	12,371		$	—	$	10,843
Noncumulative dividends on    convertible preferred stock		—			—			—		(140	)		—			—			—		(280	)
Undistributed earnings allocated to    participating securities		(31	)		(57	)		—		(4,583	)		(41	)		(115	)		—		(8,341	)
Net income attributable to common    stockholders, basic	$	3,299		$	6,191		$	—	$	1,275		$	4,387		$	12,256		$	—	$	2,222
Denominator
Weighted average shares used in    computing net income per share    attributable to common    stockholders, basic		44,261			83,053			—		24,418			33,113			92,519			—		23,440
Net income per share attributable to    common stockholders, basic	$	0.07		$	0.07		$	—	$	0.05		$	0.13		$	0.13		$	—	$	0.09
Diluted
Numerator
Net income attributable to common    stockholders, basic	$	3,299		$	6,191		$	—	$	1,275		$	4,387		$	12,256		$	—	$	2,222
Reallocation as a result of conversion of    Class B to Class A common stock:
Net income attributable to common    stockholders, basic		6,191			—			—		—			12,256			—			—		—
Reallocation of net income to Class B    common stock		—			369			—		—			—			546			—		—
Net income attributable to common    stockholders, diluted	$	9,490		$	6,560		$	—	$	1,275		$	16,643		$	12,802		$	—	$	2,222
Denominator
Number of shares used for basic    EPS computation		44,261			83,053			—		24,418			33,113			92,519			—		23,440
Conversion of Class B to Class A    common stock		83,053			—			—		—			92,519			—			—		—
Effect of potentially dilutive    common shares		16,039			16,039			—		12,620			17,874			17,874			—		12,393
Weighted average shares used in    computing net income per share    attributable to common stockholders,    diluted		143,353			99,092			—		37,038			143,506			110,393			—		35,833
Net income per share attributable to    common stockholders, diluted	$	0.07		$	0.07		$	—	$	0.03		$	0.12		$	0.12		$	—	$	0.06

Potential Common Share Equivalents Excluded where the Inclusion would be Anti-dilutive

Potential common share equivalents excluded where the inclusion would be anti-dilutive are as follows:

	Three Months Ended July 31,				Six Months Ended July 31,
	2014		2013		2014		2013
Options to purchase shares not included in the computation of diluted net income per share because their inclusion would be anti-dilutive		826,772		3,911,313		700,903		11,136,748