Income (Loss) Per Share

12 Months Ended

Dec. 31, 2022

Income (Loss) Per ShareBasic income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the sum of the weighted-average number of common shares outstanding and the weighted-average number of shares issuable under the common stock warrants, representing 61 thousand shares during the year ended December 31, 2020. The common stock warrants are included in the calculation of basic income (loss) per share for the year ended December 31, 2020, because they were issuable for minimal consideration. As of March 31, 2020, the previously outstanding common stock warrants had been exercised for common stock and no warrants were outstanding.

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


	Year Ended December 31,
	2022		2021		2020
Net income (loss)	$	364,189	$	(81,297)	$	(409,086)


Plus: Net income effect of convertible securities	—		—		—
Numerator for diluted income (loss) per common share	$	364,189	$	(81,297)	$	(409,086)

Basic weighted-average common stock shares outstanding	59,544		58,268		53,295
Plus: dilutive effects of common stock equivalents (1)	339		—		—
Diluted weighted-average common stock shares outstanding	59,883		58,268		53,295

Basic income (loss) per common share	$	6.12	$	(1.40)	$	(7.68)
Diluted income (loss) per common share	$	6.08	$	(1.40)	$	(7.68)

Diluted income (loss) per common share excludes the following equity instruments because their effect would be anti-dilutive:
Shares of unvested restricted stock	234		925		475
Shares of stock options	1,868		2,386		2,229
Common stock equivalents using the if-converted method of settling the 5.00% Convertible Senior Notes (2)	—		1,230		2,704

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(1)Entities with a net loss from continuing operations are prohibited from including potential common shares in the computation of diluted per share amounts. We have utilized the basic shares outstanding to calculate both basic and diluted loss per common share for the years ended December 31, 2021 and 2020.

(2)We had no 5.00% Convertible Senior Notes outstanding for the year ended December 31, 2022