Earnings and Dividends Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table summarizes the average number of common shares and the net income used in the calculation of basic and diluted earnings per common share (in thousands, except share and per share amounts):

	Three Months Ended
	March 31,
	2018		2017
Net income	$	38,432	$	44,230
BASIC:
Weighted average common shares outstanding	41,532,154		39,953,804
DILUTED:
Weighted average common shares outstanding	41,532,154		39,953,804
Stock options	44,722		56,910
Convertible subordinated debentures	—		98,048
Average dilutive common shares outstanding	41,576,876		40,108,762
Net income per common share - basic	$	.93	$	1.11
Net income per common share - diluted	$	.92	$	1.10
Incremental shares excluded since anti-dilutive:
Net share effect of stock options and convertible debt with an exercise or conversion price in excess of the average market price for our common shares	118,639		19,851
Regular dividends declared per common share	$	1.00	$	.95