Earnings Per Share

12 Months Ended

Dec. 31, 2020

Earnings Per Share[Abstract]

Earnings Per Share

15.    Earnings Per Share

The computation of earnings per share follows (in thousands, except per share data):

		Net Income
For the Years Ended December 31,		Net Income		Shares	Earnings per Share
2020
	Earnings	$	319,466	15,955	$	20.02
	Dilutive stock options		-	368
	Nonvested stock awards		-	75
	Diluted earnings	$	319,466	16,398	$	19.48
2019
	Earnings	$	219,923	15,969	$	13.77
	Dilutive stock options		-	480
	Nonvested stock awards		-	78
	Diluted earnings	$	219,923	16,527	$	13.31
2018
	Earnings	$	205,544	16,059	$	12.80
	Dilutive stock options		-	650
	Nonvested stock awards		-	94
	Diluted earnings	$	205,544	16,803	$	12.23

During 2020, 566,000 stock options were excluded from the computation of diluted earnings per share as their exercise prices were greater than the average market price during most of the year. During 2019, 287,000 stock options were also excluded. During 2018, 246,000 stock options were also excluded.