Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Calculation of Net Income Per Share

The calculation of net income per share for the three and nine months ended September 30, 2021 and 2020 is reflected in the following table (in thousands, except per share amounts):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income	$	170,871	$	75,749	$	430,682	$	211,860
Basic:
Weighted average shares	110,176		112,809		110,816		112,953
Diluted:
Weighted average shares	110,176		112,809		110,816		112,953
Dilutive effect of potential common shares	1,314		546		1,138		491
Diluted weighted average shares	111,490		113,355		111,954		113,444
Net income per share:
Basic	$	1.55	$	.67	$	3.89	$	1.88
Diluted	$	1.53	$	.67	$	3.85	$	1.87