Derivatives (Narrative - Interest Rate Swaps) (Details) (Fair Value Hedging [Member], USD $)	3 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended			9 Months Ended
	Jun. 30, 2012 Interest rate contracts [Member] Old Rate Agreement [Member]	Jun. 30, 2012 Interest Expense [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Apr. 18, 2012 Senior Notes [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Interest rate contracts [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Interest rate contracts [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Interest rate contracts [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Interest rate contracts [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Jun. 30, 2012 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Apr. 17, 2012 Old Senior Secured Notes [Member] Senior Notes [Member] Interest rate contracts [Member] Old Rate Agreement [Member]	Sep. 30, 2012 New Senior Secured Notes [Member] Senior Notes [Member] Interest rate contracts [Member] New Rate Agreement [Member]
Derivative [Line Items]
Derivative, notional amount			$ 0														$ 80,000,000	$ 45,000,000
Proceeds from termination of hedge	3,600,000
Gain (loss) on carrying value adjustment on debt related to interest rate swap		100,000										0	3,502,000	0	3,502,000	0
Net impact on Condensed Consolidated Statements of Comprehensive Income (Loss)				$ (666,000)	$ 205,000	$ 3,082,000	$ 697,000	$ (666,000)	$ 205,000	$ (420,000)	$ 697,000