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Net Income per Share Attributable to Common Stockholders (Tables)
12 Months Ended
Jan. 31, 2017
Earnings Per Share [Abstract]  
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):

 

 

For the fiscal year ended January 31,

 

 

2017

 

 

2016

 

 

2015

 

 

Class A

 

 

Class B

 

 

Class A

 

 

Class B

 

 

Class A

 

 

Class B

 

Basic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Numerator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income

$

49,799

 

 

$

19,005

 

 

$

31,453

 

 

$

23,007

 

 

$

14,540

 

 

$

25,843

 

Undistributed earnings allocated to

   participating securities

 

(2

)

 

 

(1

)

 

 

(27

)

 

 

(20

)

 

 

(88

)

 

 

(157

)

Net income attributable to common

   stockholders, basic

$

49,797

 

 

$

19,004

 

 

$

31,426

 

 

$

22,987

 

 

$

14,452

 

 

$

25,686

 

Denominator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average shares used in

   computing net income per

   share attributable to common

   stockholders, basic

 

98,216

 

 

 

37,482

 

 

 

76,246

 

 

 

55,774

 

 

 

45,983

 

 

 

81,730

 

Net income per share attributable to common

   stockholders, basic

$

0.51

 

 

$

0.51

 

 

$

0.41

 

 

$

0.41

 

 

$

0.31

 

 

$

0.31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diluted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Numerator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income attributable to common

   stockholders, basic

$

49,797

 

 

$

19,004

 

 

$

31,426

 

 

$

22,987

 

 

$

14,452

 

 

$

25,686

 

Reallocation as a result of conversion of

   Class B to Class A

   common stock:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income attributable to common

   stockholders, basic

 

19,004

 

 

 

 

 

 

22,987

 

 

 

 

 

 

25,686

 

 

 

 

Reallocation of net income to Class B

   common stock

 

 

 

 

4,009

 

 

 

 

 

 

2,808

 

 

 

 

 

 

1,653

 

Net income attributable to common

   stockholders, diluted

$

68,801

 

 

$

23,013

 

 

$

54,413

 

 

$

25,795

 

 

$

40,138

 

 

$

27,339

 

Denominator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of shares used for basic EPS

   computation

 

98,216

 

 

 

37,482

 

 

 

76,246

 

 

 

55,774

 

 

 

45,983

 

 

 

81,730

 

Conversion of Class B to Class A common

   stock

 

37,482

 

 

 

 

 

 

55,774

 

 

 

 

 

 

81,730

 

 

 

 

Effect of potentially dilutive common

   shares

 

11,880

 

 

 

11,880

 

 

 

12,957

 

 

 

12,957

 

 

 

16,491

 

 

 

16,491

 

Weighted average shares used in

   computing net income per

   share attributable to common

   stockholders, diluted

 

147,578

 

 

 

49,362

 

 

 

144,977

 

 

 

68,731

 

 

 

144,204

 

 

 

98,221

 

Net income per share attributable to

   common stockholders, diluted

$

0.47

 

 

$

0.47

 

 

$

0.38

 

 

$

0.38

 

 

$

0.28

 

 

$

0.28

 

 

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:

 

 

Fiscal Year Ended

January 31,

 

 

2017

 

 

2016

 

 

2015

 

Options and awards to purchase shares not included in the

   computation of diluted net income per share because their

   inclusion would be anti-dilutive

 

2,040,238

 

 

 

886,472

 

 

 

355,263