Net Income Per Share

The computations of basic and diluted net income per share for the Company were as follows (in thousands, except per share amounts):



	Three Months Ended September 30,				Six Months Ended September 30,
	2018		2017		2018		2017
Net income	$	64,176	$	56,358	$	102,642	$	93,365

Shares used in net income per share computation:
Weighted average shares outstanding - basic	165,630		164,120		165,474		163,765
Effect of potentially dilutive equivalent shares	3,604		4,958		3,522		4,945
Weighted average shares outstanding - diluted	169,234		169,078		168,996		168,710

Net income per share:
Basic	$	0.39	$	0.34	$	0.62	$	0.57
Diluted	$	0.38	$	0.33	$	0.61	$	0.55

Share equivalents attributable to outstanding stock options, restricted stock units ("RSUs") and ESPP totaling 0.8 million and 0.6 million for the three months ended September 30, 2018 and 2017, respectively, and 1.2 million and 1.2 million for the six months ended September 30, 2018 and 2017, respectively, were excluded from the calculation of diluted net income per share because the combined exercise price and average unamortized grant date fair value upon exercise of these options and ESPP or vesting of RSUs were greater than the average market price of the Company's shares during the periods presented herein, and therefore their inclusion would have been anti-dilutive.