9	Earnings Per Share

Basic and diluted EPS calculations are detailed as follows (in thousands, except per share data):


	Three Months Ended March 31, 2018
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	111,951		78,883	$	1.42
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		832		(0.02	)

Net income per diluted common share	$	111,951		79,715	$	1.40


	Three Months Ended April 1, 2017
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	105,557		80,073	$	1.32
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		696		(0.01	)

Net income per diluted common share	$	105,557		80,769	$	1.31

For the three months ended March 31, 2018 and April 1, 2017, the Company had 0.3 million and 1.1 million stock options that were antidilutive, respectively, due to having higher exercise prices than the Company’s average stock price during the period. These securities were not included in the computation of diluted EPS. The effect of dilutive securities was calculated using the treasury stock method.