Net Income (Loss) Per Share Attributable to Common Shareholders (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Net Income (Loss) per Share

The following table sets forth the computation of basic and diluted net income (loss) per share for the periods ended (in thousands, except per share amounts):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2019		2018			2019		2018
Basic net income (loss) per common share calculation:
Net income (loss) attributable to common shareholders	$	138,423	$	(50,711	)	$	36,316	$	(117,391	)
Net income (loss) attributable to common shareholders -    basic	$	138,423	$	(50,711	)	$	36,316	$	(117,391	)
Basic weighted-average common shares outstanding		54,829,057		47,391,988			53,380,123		46,709,388
Basic net income (loss) per common share	$	2.52	$	(1.07	)	$	0.68	$	(2.51	)
Diluted net income (loss) per common share calculation:
Net income (loss) attributable to common shareholders	$	138,423	$	(50,711	)	$	36,316	$	(117,391	)
Net income (loss) attributable to common shareholders -    diluted	$	138,423	$	(50,711	)	$	36,316	$	(117,391	)
Weighted-average shares used to compute basic net    income (loss) per common share		54,829,057		47,391,988			53,380,123		46,709,388
Effect of potentially dilutive securities:
Outstanding options		2,612,354		—			2,326,824		—
Unvested restricted common shares		157,490		—			114,473		—
Weighted-average shares used to compute diluted net    income (loss) per common share		57,598,901		47,391,988			55,821,420		46,709,388
Diluted net income (loss) per common share	$	2.40	$	(1.07	)	$	0.65	$	(2.51	)

Schedule of Antidilutive Securities not Include in Computation of Net Income (Loss) per Share

The Company did not include the securities in the following table in the computation of the net income (loss) per share calculations because the effect would have been anti-dilutive during each period:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Outstanding options		2,612,354		6,698,579		2,326,824		6,698,579
Unvested restricted common shares		157,490		178,884		114,473		178,884
Total		2,769,844		6,877,463		2,441,297		6,877,463