CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $) In Thousands, except Share data	Total		Common Stock [Member]	Capital In Excess of Par Value [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Stockholders' Equity [Member]	Non-Controlling Interests [Member]
Beginning Balance at Dec. 31, 2012	$ 1,952,105		$ 243,442	$ 1,391,271	$ 445,756	$ (98,725)	$ (94,413)	$ 1,887,331	$ 64,774
Beginning Balance (in shares) at Dec. 31, 2012			243,442,156
Net loss	24,318				20,553			20,553	3,765
Other comprehensive income, net of tax	(6,296)	[1]					(6,284)	(6,284)	(12)
Exercise of stock options	72		18	54				72
Exercise of stock options (in shares)			18,549
Share vesting			318	(318)
Share vesting (in shares)			317,664
Purchase of treasury shares	(1,034)					(1,034)		(1,034)
Stock-based compensation charges	3,923			3,852		71		3,923
Distributions to noncontrolling interests	(6,200)								(6,200)
Ending Balance at Mar. 31, 2013	1,966,888		243,778	1,394,859	466,309	(99,688)	(100,697)	1,904,561	62,327
Ending Balance (in shares) at Mar. 31, 2013			243,778,369
Beginning Balance at Dec. 31, 2013	1,440,344		244,271	1,414,457	(71,157)	(97,926)	(140,131)	1,349,514	90,830
Beginning Balance (in shares) at Dec. 31, 2013			244,271,365
Net loss	(49,417)				(49,953)			(49,953)	536
Other comprehensive income, net of tax	17,356	[1]					17,389	17,389	(33)
Exercise of stock options	265		118	147				265
Exercise of stock options (in shares)			118,410
Share vesting			350	(350)
Share vesting (in shares)			349,625
Purchase of treasury shares	(748)					(748)		(748)
Stock-based compensation charges	4,387			3,120		1,267		4,387
Distributions to noncontrolling interests	(502)								(502)
Ending Balance at Mar. 31, 2014	$ 1,411,685		$ 244,739	$ 1,417,374	$ (121,110)	$ (97,407)	$ (122,742)	$ 1,320,854	$ 90,831
Ending Balance (in shares) at Mar. 31, 2014			244,739,400

[1] The tax impacts on amounts presented in other comprehensive income are not significant.