CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2011	$ 2,136,517	$ 624	$ 1,620,430	$ 744,939	$ (229,476)
Increase (Decrease) in Stockholders' Equity
Net income	40,616			40,616
Other comprehensive income, net of tax	4,665				4,665
Stock issued upon the exercise of stock options	120	1	119
Dividends paid, $0.125 per share	(7,806)			(7,806)
Stock based compensation	947		947
Excess tax benefits from stock-based compensation arrangements	783		783
Other	(646)			(646)
Balance at Mar. 31, 2012	$ 2,175,196	$ 625	$ 1,622,279	$ 777,103	$ (224,811)