CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Capital In Excess of Par Value [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Stockholders' Equity [Member]	Non-Controlling Interests [Member]
Beginning Balance at Dec. 31, 2012	$ 1,952,105	$ 243,442	$ 1,391,271	$ 445,756	$ (94,413)	$ (98,725)	$ 1,887,331	$ 64,774
Beginning Balance (in shares) at Dec. 31, 2012		243,442,156
Net Loss	(180,866)			(192,940)			(192,940)	12,074
Other comprehensive loss, net of tax	(34,846)				(34,822)		(34,822)	(24)
Exercise of stock options	148	55	93				148
Exercise of stock options (in shares)		54,454
Share vesting		444	(444)
Share vesting (in shares)		444,398
Purchase of treasury shares	(1,088)					(1,088)	(1,088)
Stock-based compensation charges	15,492		14,369			1,123	15,492
Distributions to noncontrolling interests	(12,493)							(12,493)
Ending Balance at Jun. 30, 2013	1,738,452	243,941	1,405,289	252,816	(129,235)	(98,690)	1,674,121	64,331
Ending Balance (in shares) at Jun. 30, 2013		243,941,008
Beginning Balance at Dec. 31, 2013	1,440,344	244,271	1,414,457	(71,157)	(140,131)	(97,926)	1,349,514	90,830
Beginning Balance (in shares) at Dec. 31, 2013		244,271,365
Net Loss	(87,926)			(94,467)			(94,467)	6,541
Other comprehensive loss, net of tax	(10,080)				(10,033)		(10,033)	(47)
Exercise of stock options	363	170	193				363
Exercise of stock options (in shares)		169,322
Share vesting		525	(525)
Share vesting (in shares)		525,422
Purchase of treasury shares	(1,460)					(1,460)	(1,460)
Stock-based compensation charges	12,413		9,681			2,732	12,413
Distributions to noncontrolling interests	(5,005)							(5,005)
Issuance of tangible equity units	240,044		240,044				240,044
Ending Balance at Jun. 30, 2014	$ 1,588,693	$ 244,966	$ 1,663,850	$ (165,624)	$ (150,164)	$ (96,654)	$ 1,496,374	$ 92,319
Ending Balance (in shares) at Jun. 30, 2014		244,966,109