Income Taxes (Summary of Uncertain Tax Positions Included in Income Tax Provision) (Details) (Continuing Operations [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Continuing Operations [Member]
Current (provision) benefit for UTPs	$ 1,751	$ 53,083	$ 1,080	$ 53,713
Deferred (provision) benefit for UTPs	(309)	(6,122)	(68)	(6,110)
(Provision) benefit for UTPs on income (loss) from continuing operations	$ 1,442	$ 46,961	$ 1,012	$ 47,603