9 Earnings Per Share

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


	Three Months Ended June 30, 2018
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	155,677		77,833	$	2.00
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		605		(0.02	)

Net income per diluted common share	$	155,677		78,438	$	1.98


	Three Months Ended July 1, 2017
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	131,822		79,979	$	1.65
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		777		(0.02	)

Net income per diluted common share	$	131,822		80,756	$	1.63


	Six Months Ended June 30, 2018
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	267,628		78,330	$	3.42
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		711		(0.03	)

Net income per diluted common share	$	267,628		79,041	$	3.39


	Six Months Ended July 1, 2017
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	237,379		80,029	$	2.97
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		740		(0.03	)

Net income per diluted common share	$	237,379		80,769	$	2.94

For both the three and six months ended June 30, 2018, the Company had 0.1 million and stock options that were antidilutive due to having higher exercise prices than the Company’s average stock price during the period. For the three and six months ended July 1, 2017, the Company had 0.4 million and 0.5 million stock options that were antidilutive, respectively. These securities were not included in the computation of diluted EPS. The effect of dilutive securities was calculated using the treasury stock method.