Earnings Per Share

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Earnings Per Share

8. Earnings Per Share

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 June 30,		Six months ended June 30,
(in thousands, except market price and earnings per share)	2019	2018	2019	2018
Net income attributable to the Company	$34,054	$29,902	$63,244	$37,564
Weighted average number of shares:
Weighted average number of shares used in calculating basic net income per share	32,299	32,257	32,286	32,239
Effect of dilutive stock-based compensation plans:
Stock options	12	16	12	16
Weighted average number of shares used in calculating diluted net income per share	32,311	32,273	32,298	32,255
Average market price of common stock used for calculation of dilutive shares	$74.86	$61.86	$73.08	$62.83
Net income attributable to the Company per share:
Basic	$1.05	$0.93	$1.96	$1.17
Diluted	$1.05	$0.93	$1.96	$1.16