Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Summary of Earnings Per Share, Basic and Diluted

The calculation and reconciliation of basic and diluted earnings per share for the three and nine months ended September 30, 2021 and 2020 is as follows (in thousands, except per share data): 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income	$	234,007	$	188,817	$	614,493	$	494,365
Denominator for basic earnings per share	81,836		83,719		82,811		84,170
Dilutive securities	1,880		2,554		2,106		2,836
Denominator for diluted earnings per share	83,716		86,273		84,917		87,006
Basic earnings per share	$	2.86	$	2.26	$	7.42	$	5.87
Diluted earnings per share	$	2.80	$	2.19	$	7.24	$	5.68