Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The amounts used in computing earnings per share and the weighted average number of shares of potentially dilutive securities are as follows:

	Three months ended September 30,				Nine months ended September 30,
(in thousands, except market price and earnings per share)	2020		2019		2020		2019
Net income attributable to the Company	$	29,589	$	40,009	$	71,052	$	103,253
Weighted average number of shares:
Weighted average number of shares used in calculating basic net income per share	32,337		32,306		32,326		32,293
Effect of dilutive stock-based compensation plans:
Stock options	7		11		7		12
Weighted average number of shares used in calculating diluted net income per share	32,344		32,317		32,333		32,305
Average market price of common stock used for calculation of dilutive shares	$	51.81	$	82.99	$	57.05	$	76.45
Net income attributable to the Company per share:
Basic	$	0.92	$	1.24	$	2.20	$	3.20
Diluted	$	0.91	$	1.24	$	2.20	$	3.20