Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Computation of earnings per share and reconciliation of basic and diluted weighted average common shares outstanding

The table below presents the computation of EPS, including the reconciliation of basic and diluted weighted average shares outstanding (in thousands, except EPS):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2021		2020		2021		2020
Net income	$	259,695	$	157,555	$	358,350	$	188,467
Weighted average shares outstanding:
Basic	40,125		39,973		40,169		40,049
Effect of dilutive securities:
Stock options and employee stock purchase plan	620		742		631		788
Diluted	40,745		40,715		40,800		40,837
Earnings per share:
Basic	$	6.47	$	3.94	$	8.92	$	4.71
Diluted	$	6.37	$	3.87	$	8.78	$	4.62
Anti-dilutive stock options excluded from diluted earnings per share computations	—		—		—		—