Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified					9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Unrealized Gains/(Losses) on Available-for-Sale Securities	Dec. 31, 2013 Unrealized Gains/(Losses) on Available-for-Sale Securities	Sep. 30, 2014 Net Realized Losses on Available-for-Sale Securities Included in Net Loss		Sep. 30, 2014 Net Realized Losses on Available-for-Sale Securities Included in Net Loss Unrealized Gains/(Losses) on Available-for-Sale Securities		Sep. 30, 2014 Net Unrealized Losses on Available-for-Sale Securities	Sep. 30, 2014 Net Unrealized Losses on Available-for-Sale Securities Unrealized Gains/(Losses) on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (10)	$ (479)	$ (10)	$ (479)
Reclassifications from accumulated other comprehensive income (loss)					491	[1]	491	[1]	(22)	(22)
Ending balance	$ (10)	$ (479)	$ (10)	$ (479)

[1] Amounts reclassified for previously unrealized losses on available-for-sale securities are included in "Interest income/(expense) and other, net" in the Consolidated Statements of Operations.