Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	$ 5,925	$ 3,180	$ 2,980
Additions for tax positions related to current year	6,546	2,482	1,949
Additions for tax positions of prior years	271	263	307
Reductions for tax position of prior years	0	0	(2,056)
Ending Balance	$ 12,742	$ 5,925	$ 3,180