Earnings Per Share

6 Months Ended

Jun. 30, 2018

Net income per share

Earnings Per Share

Note 5.   Earnings Per Share

Basic net income per share has been computed using the weighted-average number of shares of common stock outstanding during the period. Diluted net income per share has been computed using the weighted-average number of shares of common stock and dilutive potential common shares from stock options and restricted stock units outstanding during the period.

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

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
Numerator:
Net income	$	8,034	$	29,071	$	10,154	$	48,860
Denominator:
Weighted average shares used to compute net income per share
Basic		19,590		19,081		19,541		18,841
Effect of dilutive options and restricted stock units		490		1,286		471		1,115
Diluted		20,080		20,367		20,012		19,956
Net income per share
Basic	$	0.41	$	1.52	$	0.52	$	2.59
Diluted	$	0.40	$	1.43	$	0.51	$	2.45

There were no securities that were excluded from the computation of diluted net income per share.