Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Positions) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Beginning Balance	$ 8,205	$ 6,241
Additions based on tax positions related to current year	(8,205)	1,964
Reversal of uncertain tax positions due to tax audit settlements	(8,205)
Ending Balance	$ 0	$ 8,205