Earnings Per Share

12 Months Ended

Dec. 31, 2020

15 Earnings Per Share

Basic and diluted EPS calculations are detailed a

follows (in thousands, except per share data):


	Year Ended December 31, 2020
	Net Income		Weighted-Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	521,571		62,094	$	8.40
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		320		(0.04	)

Net income per diluted common share	$	521,571		62,414	$	8.36


	Year Ended December 31, 2019
	Net Income		Weighted-Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	592,198		67,627	$	8.76
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		539		(0.07	)

Net income per diluted common share	$	592,198		68,166	$	8.69


	Year Ended December 31, 2018
	Net Income		Weighted-Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	593,794		76,992	$	7.71
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		626		(0.06	)

Net income per diluted common share	$	593,794		77,618	$	7.65

For the years ended December 31, 2020, 2019 and 2018, the Company had 0.3 million, 0.1 million and 0.1 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.