Earnings (Loss) Per Share

9 Months Ended

Sep. 30, 2019

Basic earnings (loss) per share is computed in accordance with ASC 260, Earnings Per Share, based on weighted average outstanding common shares. Diluted earnings (loss) per share is computed based on basic weighted average outstanding common shares adjusted for the dilutive effect of stock options and RSUs.

The following table reconciles the weighted average share amounts used to compute both basic and diluted earnings (loss) per share (in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2019	2018	2019	2018
Weighted average shares outstanding:
Basic weighted average shares outstanding	116,169	115,889	116,337	115,615
Add: Dilutive effect of stock options and RSUs	2,138	1,603	2,123	—
Diluted weighted average shares outstanding	118,307	117,492	118,460	115,615

The diluted earnings per share computation excludes 2.1 million and 1.2 million options to purchase shares, RSUs, and contingently issuable shares during the three months ended September 30, 2019 and 2018, respectively, as their effect would be anti-dilutive. The diluted earnings (loss) per share computation excludes 2.1 million and 8.0 million options to purchase shares, RSAs, RSUs, and contingently issuable shares during the nine months ended September 30, 2019 and 2018, respectively, as their effect would be anti-dilutive.

Common stock outstanding as of September 30, 2019, and December 31, 2018, was 115,566,482 and 116,123,361, respectively.