CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (USD $) In Thousands, unless otherwise specified	Total		Common Stock Member	Additional Paid In Capital Member	Retained Earnings Member	Accumulated Other Comprehensive Loss Member	Treasury Stock Member
Beginning Balance at Dec. 31, 2012			$ 49,190	$ 151,883	$ 1,261,377	$ (55,508)	$ (94,350)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings					137,981
Other comprehensive income, net of tax	80,767	[1]				80,767
Dividends paid/declared					(18,377)
Stock options exercised, net of tax			0	(5,728)			34,451
Restricted stock				(2,127)			5,796
Share-based compensation				6,920			430
Other				(330)			330
Ending Balance at Dec. 31, 2013	1,552,705		49,190	150,618	1,380,981	25,259	(53,343)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	96,588				96,588
Other comprehensive income, net of tax	(37,267)					(37,267)
Dividends paid/declared					(18,787)
Stock options exercised, net of tax			0	5,575			35,688
Restricted stock				(2,052)			3,155
Share-based compensation				6,308			234
Repurchases of common stock							(44,555)
Other				(412)			412
Ending Balance at Sep. 30, 2014	$ 1,597,592		$ 49,190	$ 160,037	$ 1,458,782	$ (12,008)	$ (58,409)

[1] All amounts are after tax.