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Net Income (Loss) Per Share of Common Stock (Tables)
 9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share of Common Stock

The following table sets forth the computation of basic and diluted net income (loss) per share of common stock (in thousands, except per share data):

 

 

 

Three Months Ended September 30,

 

 

 

2016

 

 

2015

 

 

 

Class

 

 

Class

 

 

Class

 

 

Class

 

 

Class

 

 

Class

 

 

 

A

 

 

B

 

 

C

 

 

A

 

 

B

 

 

C

 

 

 

(unaudited)

 

BASIC:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss) attributable to common

   stockholders

 

$

(36,203

)

 

$

(4,564

)

 

$

(970

)

 

$

2,607

 

 

$

377

 

 

$

68

 

Weighted-average common shares outstanding

 

 

765,403

 

 

 

96,488

 

 

 

20,517

 

 

 

786,768

 

 

 

113,831

 

 

 

20,517

 

Basic net income (loss) per share

 

$

(0.05

)

 

$

(0.05

)

 

$

(0.05

)

 

$

0.00

 

 

$

0.00

 

 

$

0.00

 

DILUTED:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss) attributable to common

   stockholders

 

$

(36,203

)

 

$

(4,564

)

 

$

(970

)

 

$

2,607

 

 

$

377

 

 

$

68

 

Reallocation of net income (loss) as a result of

   conversion of Class C shares to Class A shares

 

 

(970

)

 

 

—

 

 

 

—

 

 

 

68

 

 

 

—

 

 

 

—

 

Reallocation of net income (loss) as a result of

   conversion of Class B shares to Class A shares

 

 

(4,564

)

 

 

—

 

 

 

—

 

 

 

377

 

 

 

—

 

 

 

—

 

Reallocation of net income (loss) to Class B and Class C shares

 

 

 

 

 

 

 

 

 

 

 

 

 

 

—

 

 

 

27

 

 

 

(1

)

Net income (loss) attributable to common

   stockholders-diluted

 

$

(41,737

)

 

$

(4,564

)

 

$

(970

)

 

$

3,052

 

 

$

404

 

 

$

67

 

Weighted-average common shares outstanding-basic

 

 

765,403

 

 

 

96,488

 

 

 

20,517

 

 

 

786,768

 

 

 

113,831

 

 

 

20,517

 

Conversion of Class C to Class A common shares

   outstanding

 

 

20,517

 

 

 

—

 

 

 

—

 

 

 

20,517

 

 

 

—

 

 

 

—

 

Conversion of Class B to Class A common shares

   outstanding

 

 

96,488

 

 

 

—

 

 

 

—

 

 

 

113,831

 

 

 

—

 

 

 

—

 

Weighted-average effect of dilutive securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stock options and employee stock purchase plan

 

 

—

 

 

 

—

 

 

 

—

 

 

 

11,994

 

 

 

10,446

 

 

 

—

 

ZSUs

 

 

—

 

 

 

—

 

 

 

—

 

 

 

6,922

 

 

 

63

 

 

 

—

 

Weighted-average common shares

   outstanding-diluted

 

 

882,408

 

 

 

96,488

 

 

 

20,517

 

 

 

940,032

 

 

 

124,340

 

 

 

20,517

 

Diluted net income (loss) per share

 

$

(0.05

)

 

$

(0.05

)

 

$

(0.05

)

 

$

0.00

 

 

$

0.00

 

 

$

0.00

 

 

 

 

 

 

Nine Months Ended September 30,

 

 

 

2016

 

 

2015

 

 

 

Class

 

 

Class

 

 

Class

 

 

Class

 

 

Class

 

 

Class

 

 

 

A

 

 

B

 

 

C

 

 

A

 

 

B

 

 

C

 

 

 

(unaudited)

 

BASIC:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss) attributable to common

   stockholders

 

$

(62,306

)

 

$

(8,731

)

 

$

(1,704

)

 

$

(59,922

)

 

$

(8,806

)

 

$

(1,584

)

Weighted-average common shares outstanding

 

 

750,038

 

 

 

105,101

 

 

 

20,517

 

 

 

775,926

 

 

 

114,026

 

 

 

20,517

 

Basic net income (loss) per share

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

DILUTED:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss) attributable to common

   stockholders

 

$

(62,306

)

 

$

(8,731

)

 

$

(1,704

)

 

$

(59,922

)

 

$

(8,806

)

 

$

(1,584

)

Reallocation of net income (loss) as a result of

   conversion of Class C shares to Class A shares

 

 

(1,704

)

 

 

—

 

 

 

—

 

 

 

(1,584

)

 

 

—

 

 

 

—

 

Reallocation of net income (loss) as a result of

   conversion of Class B shares to Class A shares

 

 

(8,731

)

 

 

—

 

 

 

—

 

 

 

(8,806

)

 

 

—

 

 

 

—

 

Net income (loss) attributable to common

   stockholders-diluted

 

$

(72,741

)

 

$

(8,731

)

 

$

(1,704

)

 

$

(70,312

)

 

$

(8,806

)

 

$

(1,584

)

Weighted-average common shares outstanding-basic

 

 

750,038

 

 

 

105,101

 

 

 

20,517

 

 

 

775,926

 

 

 

114,026

 

 

 

20,517

 

Conversion of Class C to Class A common shares

   outstanding

 

 

20,517

 

 

 

—

 

 

 

—

 

 

 

20,517

 

 

 

—

 

 

 

—

 

Conversion of Class B to Class A common shares

   outstanding

 

 

105,101

 

 

 

—

 

 

 

—

 

 

 

114,026

 

 

 

—

 

 

 

—

 

Weighted-average common shares

   outstanding-diluted

 

 

875,656

 

 

 

105,101

 

 

 

20,517

 

 

 

910,469

 

 

 

114,026

 

 

 

20,517

 

Diluted net income (loss) per share

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

$

(0.08

)

 

 

 
Shares excluded from Computation of Diluted Net Income (Loss) per Share

The following weighted-average equity awards were excluded from the computation of diluted net income (loss) per share because their effect would have been anti-dilutive for the periods presented (in thousands):

 

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2016

 

 

2015

 

 

2016

 

 

2015

 

Stock options and employee stock purchase plan

 

 

29,814

 

 

 

9,308

 

 

 

25,817

 

 

 

30,974

 

Restricted shares

 

 

3,344

 

 

 

7,791

 

 

 

4,165

 

 

 

9,102

 

ZSUs

 

 

62,587

 

 

 

40,445

 

 

 

62,850

 

 

 

64,056

 

Total

 

 

95,745

 

 

 

57,544

 

 

 

92,832

 

 

 

104,132