The following table summarizes the computation of basic and diluted net loss per share (in thousands, except share and per share data):

	Three Months Ended
	March 31,
	2020			2019
Net loss, basic and diluted	$	(24,888	)	$	(44,076	)
Weighted average shares used to compute basic and diluted net loss per share		31,839,812			30,363,623
Net loss per share, basic and diluted	$	(0.78	)	$	(1.45	)

Basic net loss per share is computed by dividing the net loss by the weighted average number of common shares outstanding for the period. Diluted net loss per share is computed by dividing the net loss by the weighted average number of common shares and dilutive common stock equivalents outstanding for the period, if inclusion of these is dilutive. Since the Company expects to settle the principal amount of its outstanding convertible senior notes in cash, the Company uses the treasury stock method for calculating any potential dilutive effect of the conversion spread on diluted net income per share, if applicable. The conversion spread will have a dilutive impact on diluted net income per share of common stock when the average market price of the Company’s common stock for a given period exceeds the conversion price of $96.37 per share for the 2021 Notes. Although this condition was met in the three months ended March 31, 2020, the Company excluded the potential shares issuable upon conversion of the 2021 Notes in the calculation of diluted earnings per share, as their inclusion would have been anti-dilutive due to the net loss position of the Company during this period. In connection with the issuance of the 2021 Notes, the Company entered into convertible bond hedges. The convertible bond hedges are not included for purposes of calculating the number of diluted shares outstanding, as their effect would be anti-dilutive. The convertible bond hedges are generally expected, but not guaranteed, to reduce the potential dilution and/or offset the cash payments the Company is required to make upon conversion of the 2021 Notes. Because the Company has reported a net loss for all periods presented, diluted net loss per common share is the same as basic net loss per common share for those periods.

The following potentially dilutive securities outstanding at the end of the periods presented have been excluded from the computation of diluted shares outstanding, as the effect would be anti-dilutive:

	March 31,
	2020		2019
Unreleased restricted stock		1,290,298		1,156,527
Options to purchase common stock		1,232,268		2,291,051
Convertible senior notes		1,790,033		1,790,033
Warrants related to the issuance of convertible senior notes		1,790,033		1,790,033
Total		6,102,632		7,027,644