Borrowings (Interest Rate Swap on Senior Secured Notes) (Details) (USD $) In Thousands, unless otherwise specified							3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended			6 Months Ended
	Jun. 30, 2012		Dec. 31, 2011		Jun. 30, 2012 Derivative asset [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Dec. 31, 2011 Derivative asset [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2012 Fair Value Hedging [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2011 Fair Value Hedging [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2012 Fair Value Hedging [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2011 Fair Value Hedging [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2012 Other (Expense) Income [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2011 Other (Expense) Income [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2012 Other (Expense) Income [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2011 Other (Expense) Income [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2012 Old Rate Agreement [Member] Interest Expense [Member] Fair Value Hedging [Member] Interest rate contracts [Member]	Jun. 30, 2012 Old Rate Agreement [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2011 Old Rate Agreement [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2012 Old Rate Agreement [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2011 Old Rate Agreement [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member] Interest rate contracts [Member] Designated as Hedging Instrument [Member]
Debt Instrument [Line Items]
Net derivative (liability) asset	$ (2,153)		$ 25		$ (188)	$ 3,606
Adjustment to (decrease) increase the carrying value of the related long-term debt	(43)	[1]	4,043	[1]
Net impact on Condensed Consolidated Statements of Comprehensive Income (Loss)							3,329	(144)	3,748	492	(173)	(144)	246	492
Gain (loss) on carrying value adjustment on debt related to interest rate swap															$ 100	$ 3,502	$ 0	$ 3,502	$ 0

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