Income Taxes (Summary Of Additional Income Tax Disclosures) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Income Taxes [Abstract]
Tax provision on income from discontinued operations	$ (10,157)		$ (47,770)		$ (16,523)
Tax provision on Sale of discontinued operations	(267,451)
Excess tax benefit from stock option exercises recorded to paid-in-capital	16,919	[1]	1,198	[1]	412	[1]
Deferred tax (provision) benefit for adjustments in other comprehensive loss (See Note 4)	$ (22,612)		$ 39,416		$ 22,300

[1] The Company uses the with-and-without approach of determining when excess tax benefits from equity compensation have been realized.