Income Taxes (Components Of Income Tax Expense Attributable To Continuing Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Current income tax expense, Federal	$ 23,933	$ 72,807	$ 104,021
Current income tax expense, State	7,803	7,351	11,556
Current income tax expense, Foreign	34,053	21,003	7,476
Current income tax expense	65,789	101,161	123,053
Deferred income tax (benefit) expense, Federal	19,837	25,122	(16,012)
Deferred income tax (benefit) expense, State	322	(2,353)	(1,978)
Deferred income tax (benefit) expense, Foreign	(10,217)	(3,588)	(3,561)
Deferred income tax (benefit) expense	9,942	19,181	(21,551)
Income tax expense	75,731	120,342	101,502
Parent [Member]
Income tax expense	$ (25,050)	$ (15,880)	$ (12,061)