Derivatives (Gain Loss on Interest Rate Swaps Included in Earnings) (Details) (USD $)	3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		0 Months Ended
	Sep. 30, 2013 Interest rate agreements [Member] Other Income (Expense) [Member]	Sep. 30, 2013 Interest rate agreements [Member] Other Income (Expense) [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Loss on Redemption of Debt [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Other Income (Expense) [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Interest rate agreements [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Interest rate agreements [Member] Fair Value Hedging [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Interest rate agreements [Member] Fair Value Hedging [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Interest rate agreements [Member] Fair Value Hedging [Member]	Jul. 02, 2013 New Rate Agreement [Member] Interest rate agreements [Member]	Jul. 02, 2013 New Rate Agreement [Member] Senior Notes [Member] Interest rate agreements [Member]	Sep. 30, 2013 New Rate Agreement [Member] Senior Notes [Member] Interest rate agreements [Member] Fair Value Hedging [Member]	Sep. 30, 2013 New Rate Agreement [Member] Senior Notes [Member] Designated as Hedging Instrument [Member] Interest rate agreements [Member] Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount																					$ 45,000,000	$ 40,500,000
Derivative, notional amount de-designated, percent of total																			10.00%
Derivative, notional amount de-designated																				4,500,000
Income (expense) on de-designated derivative	(200,000)	(162,000)
Interest rate swap															(330,000)	(582,000)	1,749,000	(243,000)
Related long-term debt			(245,000)	(1,248,000)	1,265,000	2,839,000
Net impact on Condensed Consolidated Statements of Operations			$ 85,000	$ (666,000)	$ (484,000)	$ 3,082,000	$ 0	$ 0	$ 0	$ 3,502,000	$ 85,000	$ (666,000)	$ (484,000)	$ (420,000)