Net Income Per Share

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Net Income Per Share

Net Income per Share

Basic net income per share is computed using the weighted average number of shares of common stock outstanding during the period. Diluted net income per share is computed using the weighted average number of shares of common stock, adjusted for any dilutive effect of potential common stock. Potential common stock, computed using the treasury stock method, includes RSUs, MSUs and our ESPP.

The following table sets forth the computation of basic and diluted net income per share attributable to common stock (in thousands, except per share amounts): 

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Numerator:
Net income	$	147,142	$	106,105	$	218,990	$	201,971
Denominator:
Weighted average common shares outstanding, basic	79,943		80,216		79,901		80,127
Dilutive effect of potential common stock	647		1,255		764		1,448
Total shares, diluted	80,590		81,471		80,665		81,575
Net income per share, basic	$	1.84	$	1.32	$	2.74	$	2.52
Net income per share, diluted	$	1.83	$	1.30	$	2.71	$	2.48

For the three and six months ended June 30, 2019 and 2018, potentially anti-dilutive shares excluded from diluted net income per share related to RSUs, MSUs and ESPP were not material.