Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted earnings per common share

The following table sets forth the computation of basic and diluted earnings per common share:

 

Year ended December 31 (In thousands, except share data)	2022		2021		2020
Numerator:
Net income	$	148,351	$	153,945	$	127,923
Denominator:
Weighted-average common shares outstanding	16,246,009		16,291,016		16,302,825
Effect of dilutive PBRSUs and TBRSUs	119,300		134,190		104,677
Weighted-average common shares outstanding adjusted for the effect of dilutive PBRSUs and TBRSUs	16,365,309		16,425,206		16,407,502
Earnings per common share:
Basic earnings per common share	$	9.13	$	9.45	$	7.85
Diluted earnings per common share	$	9.06	$	9.37	$	7.80