Borrowings (Interest Rate Swap on Senior Secured Notes) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Debt Instrument [Line Items]
Fair market value of Rate Agreements - asset (liability)	$ (1,644)		$ (81)
Adjustment to (decrease) increase the carrying value of the related long-term debt	(857)	[1]	408	[1]
Derivative asset [Member] | Interest rate agreements [Member] | Designated as Hedging Instrument [Member]
Debt Instrument [Line Items]
Fair market value of Rate Agreements - asset (liability)	$ (1,613)		$ 298

[1] See Interest Rate Agreement under “Senior Secured Notes” below and in note 9.