Earnings Per Share (Tables)

12 Months Ended

Dec. 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:

(in thousands, except market price and earnings per share)	2017	2016	2015
Net income attributable to the Company	$33,111	$52,733	$57,279
Weighted average number of shares:
Weighted average number of shares used in
calculating basic net income per share	32,169	32,086	31,978
Effect of dilutive stock-based compensation plans:
Stock options	30	39	58
Long-term incentive plan	45	45	52
Weighted average number of shares used in
calculating diluted net income per share	32,244	32,170	32,088
Average market price of common stock used
for calculation of dilutive shares	$52.19	$40.25	$36.68
Net income per share:
Basic	$1.03	$1.64	$1.79
Diluted	$1.03	$1.64	$1.79