Income Taxes (Summary of Additional Income Tax Disclosures) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Tax provision on income from discontinued operations	$ 2,995	$ (10,157)	$ (47,770)
Tax provision on sale of discontinued operations		(267,451)
Excess tax benefit from equity compensation recorded to paid-in-capital	(3,128)	16,919	1,198
Deferred tax (provision) benefit for adjustments in other comprehensive income (loss) (See Note 4)	$ (10,127)	$ (22,612)	$ 39,416