Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule Computing Earnings Per Share

(in thousands, except market price and earnings per share)	2015	2014	2013
Net income attributable to the Company	$57,279	$41,569	$17,517
Weighted average number of shares:
Weighted average number of shares used in
calculating basic net income per share	31,978	31,832	31,649
Effect of dilutive stock-based compensation plans:
Stock options	58	99	129
Long-term incentive plan	52	57	156
Weighted average number of shares used in
calculating diluted net income per share	32,088	31,988	31,934
Average market price of common stock used
for calculation of dilutive shares	$36.68	$36.29	$31.85
Net income per share:
Basic	$1.79	$1.31	$0.55
Diluted	$1.79	$1.30	$0.55