CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, except Share data	Total		Common Stock	Capital In Excess of Par Value	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Stockholders' Equity	Non-Controlling Interests
Beginning Balance at Dec. 31, 2011	$ 1,733,712		$ 242,416	$ 1,375,976	$ 239,103	$ (95,827)	$ (102,030)	$ 1,659,638	$ 74,074
Beginning Balance (in shares) at Dec. 31, 2011			242,416,424
Net income	173,644				166,109			166,109	7,535
Other comprehensive income, net of tax	21,623	[1]					21,522	21,522	101
Exercise of stock options (in shares)			191,984
Exercise of stock options	889		192	697				889
Share vesting (in shares)			810,786
Share vesting	(36)		811	(811)		(36)		(36)
Purchase of treasury shares	(2,862)					(2,862)		(2,862)
Stock-based compensation charges	11,449			11,449				11,449
Noncontrolling interests distributions and other	(15,728)								(15,728)
Ending Balance at Sep. 30, 2012	1,922,691		243,419	1,387,311	405,212	(98,725)	(80,508)	1,856,709	65,982
Ending Balance (in shares) at Sep. 30, 2012			243,419,194
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 income	(180,866)				(192,940)			(192,940)	12,074
Other comprehensive income, net of tax	(34,846)	[1]					(34,822)	(34,822)	(24)
Exercise of stock options (in shares)			54,454
Exercise of stock options	148		55	93				148
Share vesting (in shares)			444,398
Share vesting			444	(444)
Purchase of treasury shares	(1,088)					(1,088)		(1,088)
Stock-based compensation charges	15,492			14,369		1,123		15,492
Noncontrolling interests distributions and other	(12,493)								(12,493)
Ending Balance at Sep. 30, 2013	$ 1,738,452		$ 243,941	$ 1,405,289	$ 252,816	$ (98,690)	$ (129,235)	$ 1,674,121	$ 64,331
Ending Balance (in shares) at Sep. 30, 2013			243,941,008

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