(Loss) Income Per Share

12 Months Ended

Dec. 31, 2020

INCOME (LOSS) PER SHARE

Basic per share amounts were computed using the weighted average number of common shares outstanding. Diluted per share amounts were calculated using the number of basic weighted average shares outstanding increased by dilutive potential common shares related to stock-based awards, as determined by the treasury stock method. Basic income per share amounts were computed using the weighted average number of common shares outstanding. Diluted income per share amounts were calculated using the number of basic weighted average shares outstanding increased by dilutive potential common shares related to stock-based awards, as determined by the treasury stock method

The weighted average numbers of shares outstanding used to compute income (loss) per share amounts were as follows (in thousands):


	Year Ended December 31,
	2020	2019	2018
Shares used for basic per share calculations	30,007	29,684	30,099
Dilutive effect of outstanding options, RSUs, and PSUs	2,116	—	256
Shares used for diluted per share calculations	32,123	29,684	30,355

The weighted average numbers of shares outstanding listed in the table below were dilutive and are excluded from the computation of diluted per share when there is a loss from continuing operations, as such, the exercise or

conversion of any potential shares would increase the number of shares in the denominator and results in a lower income (loss).

These shares may be dilutive potential common shares in the future (in thousands):


	As of December 31,
	2020	2019	2018
Stock options	—	96	—
RSUs	—	257	—

The weighted average numbers of shares outstanding listed in the table below were anti-dilutive and excluded from the computation of diluted income (loss) per share. In the case of RSUs, this is because unrecognized compensation expense exceeds the current value of the awards (i.e., grant date market value was higher than current average market price). In the case of stock options, this is because the average market price did not exceed the exercise price.

These shares may be anti-dilutive potential common shares in the future (in thousands):


	As of December 31,
	2020	2019	2018
Stock options	14	76	10

RSUs	11	228	1