11. EARNINGS PER SHARE

Basic earnings per share is computed using the weighted-average number of common shares outstanding during the applicable period. Diluted earnings per share is computed using the weighted-average number of common shares outstanding during the applicable period, plus the dilutive effect of outstanding options and RSUs, using the treasury stock method. Certain shares related to some of the Company’s outstanding stock options and RSUs were excluded from the computation of diluted earnings per share because they were anti-dilutive in the periods presented, but could be dilutive in the future.

The calculation of the Company’s basic and diluted earnings per share is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share amounts)	2017		2016		2017		2016
Basic
Net income	$	11,406	$	4,536	$	38,427	$	14,936

Weighted-average common shares outstanding		77,313		76,318		77,039		76,347

Earnings per share, basic	$	0.15	$	0.06	$	0.50	$	0.20

Diluted
Net income	$	11,406	$	4,536	$	38,427	$	14,936

Weighted-average effect of dilutive securities:
Stock options		3,694		1,924		3,439		1,808
RSUs		1,938		1,180		1,934		1,174

Effect of assumed exercise of stock options and RSUs		5,632		3,104		5,373		2,982

Weighted-average common shares outstanding, assuming dilution		82,945		79,422		82,412		79,329

Earnings per share, diluted	$	0.14	$	0.06	$	0.47	$	0.19

Outstanding stock options and RSUs excluded as impact would be anti-dilutive		237		315		276		404