Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2017

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)	2017	2016
Net income attributable to the Company	$10,839	$13,501
Weighted average number of shares:
Weighted average number of shares used in
calculating basic net income per share	32,128	32,041
Effect of dilutive stock-based compensation plans:
Stock options	36	40
Weighted average number of shares used in
calculating diluted net income per share	32,164	32,081
Average market price of common stock used
for calculation of dilutive shares	$46.49	$35.23
Net income per share:
Basic	$0.34	$0.42
Diluted	$0.34	$0.42