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Quarterly Results of Operations (Unaudited)
12 Months Ended
Dec. 31, 2018
Quarterly Financial Data [Abstract]  
Quarterly Results of Operations (Unaudited) Quarterly Results of Operations (Unaudited)

The following tables presents the Company’s unaudited consolidated quarterly financial data. This information has been prepared on a basis consistent with that of the audited consolidated financial statements. The Company believes that all necessary adjustments, consisting of normal recurring accruals and adjustments, have been included to present fairly the quarterly financial data. The Company’s quarterly results of operations for these periods are not necessarily indicative of future results of operations. The following amounts are in thousands, except per share amounts:
 
 
For the Quarters Ended
 
2018
 
December 31,
 
September 30,
 
June 30,
 
March 31,
Revenue
$
487

 
$
2,362

 
$
686

 
$
193

Net loss
$
(40,616
)
 
$
(32,834
)
 
$
(34,080
)
 
$
(35,037
)
Basic and Diluted net loss attributable to common stockholders
$
(40,616
)
 
$
(32,834
)
 
$
(34,080
)
 
$
(35,037
)
Basic and Diluted net loss per share attributable to common stockholders(1)
$
(1.12
)
 
$
(0.91
)
 
$
(0.94
)
 
$
(0.97
)
 
 
 
 
 
 
 
 
 
For the Quarters Ended
 
2017
 
December 31,
 
September 30,
 
June 30,
 
March 31,
Revenue
$
37

 
$
75

 
$
75

 
$
75

Loss on Impairment
$
(2,927
)
 
$

 
$

 
$

Net loss
$
(40,616
)
 
$
(30,651
)
 
$
(26,874
)
 
$
(27,156
)
Basic and Diluted net loss attributable to common stockholders
$
(40,616
)
 
$
(30,651
)
 
$
(26,874
)
 
$
(27,156
)
Basic and Diluted net loss per share attributable to common stockholders (1)
$
(1.12
)
 
$
(1.01
)
 
$
(0.90
)
 
$
(0.94
)

(1) Net loss per share amounts are calculated discretely and therefore may not add up to the total due to rounding.