Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Unrecognized tax benefit netted against a deferred tax asset for a net operating loss carryforward	$ (5,926)		$ (8,422)
Unrecognized tax benefits, period increase (decrease)	3,866	2,349
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	12,742	5,925	5,925
Additions for tax positions related to current year	263		6,546
Additions for tax positions of prior years	3,603		271
Reductions for tax position of prior years	0		0
Ending Balance	$ 16,608		$ 12,742