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Selected Quarterly Financial Data (Tables)
 12 Months Ended
Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]  
Selected Quarterly Financial Data

 

 

Year Ended December 31, 2019

 

 

 

Q1

 

 

Q2

 

 

Q3

 

 

Q4

 

Total revenues

 

$

5,773

 

 

$

8,301

 

 

$

10,575

 

 

$

10,570

 

Net loss

 

$

(39,672

)

 

$

(42,713

)

 

$

(33,459

)

 

$

(36,756

)

Net loss allocable to common stockholders

 

$

(39,672

)

 

$

(42,713

)

 

$

(36,726

)

 

$

(36,756

)

Net loss per share allocable to common stockholders - basic

   and diluted

 

$

(0.62

)

 

$

(0.66

)

 

$

(0.49

)

 

$

(0.44

)

Weighted average shares used to compute basic and diluted

   net loss per share allocable to common stockholders

 

 

63,778

 

 

 

65,088

 

 

 

75,106

 

 

 

83,868

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year Ended December 31, 2018

 

 

 

Q1

 

 

Q2

 

 

Q3

 

 

Q4

 

Total revenues

 

$

165

 

 

$

1,254

 

 

$

1,461

 

 

$

5,318

 

Net loss

 

$

(38,958

)

 

$

(39,444

)

 

$

(40,528

)

 

$

(39,969

)

Net loss per share - basic and diluted

 

$

(0.63

)

 

$

(0.63

)

 

$

(0.65

)

 

$

(0.64

)

Weighted average shares used to compute basic and diluted

   net loss per share

 

 

61,744

 

 

 

62,346

 

 

 

62,650

 

 

 

62,694