Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Schedule Computing 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 March 31,
(in thousands, except market price and earnings per share)	2019	2018
Net income attributable to the Company	$29,190	$7,662
Weighted average number of shares:
Weighted average number of shares used in
calculating basic net income per share	32,272	32,220
Effect of dilutive stock-based compensation plans:
Stock options	13	16
Weighted average number of shares used in
calculating diluted net income per share	32,285	32,236
Average market price of common stock used
for calculation of dilutive shares	$71.24	$63.86
Net income attributable to the Company per share:
Basic	$0.90	$0.24
Diluted	$0.90	$0.24