Derivatives (Gain Loss on Interest Rate Swaps Included in Earnings) (Details) (USD $)	12 Months Ended													0 Months Ended
	Dec. 31, 2013 Interest Rate Agreements Other Income (Expense) [Member]	Dec. 31, 2013 Designated as Hedging Instrument Fair Value Hedging	Dec. 31, 2012 Designated as Hedging Instrument Fair Value Hedging	Dec. 31, 2011 Designated as Hedging Instrument Fair Value Hedging	Dec. 31, 2013 Designated as Hedging Instrument Loss on Redemption of Debt [Member] Fair Value Hedging	Dec. 31, 2012 Designated as Hedging Instrument Loss on Redemption of Debt [Member] Fair Value Hedging	Dec. 31, 2011 Designated as Hedging Instrument Loss on Redemption of Debt [Member] Fair Value Hedging	Dec. 31, 2013 Designated as Hedging Instrument Other Income (Expense) [Member] Fair Value Hedging	Dec. 31, 2012 Designated as Hedging Instrument Other Income (Expense) [Member] Fair Value Hedging	Dec. 31, 2011 Designated as Hedging Instrument Other Income (Expense) [Member] Fair Value Hedging	Dec. 31, 2013 Designated as Hedging Instrument Interest Rate Agreements Fair Value Hedging	Dec. 31, 2012 Designated as Hedging Instrument Interest Rate Agreements Fair Value Hedging	Dec. 31, 2011 Designated as Hedging Instrument Interest Rate Agreements Fair Value Hedging	Jul. 02, 2013 New Rate Agreement [Member] Interest Rate Agreements	Jul. 02, 2013 New Rate Agreement [Member] Senior Notes Interest Rate Agreements	Dec. 31, 2013 New Rate Agreement [Member] Senior Notes Interest Rate Agreements Fair Value Hedging	Dec. 31, 2013 New Rate Agreement [Member] Senior Notes Designated as Hedging Instrument Interest Rate Agreements Fair Value Hedging
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)
Interest rate swap											1,732,000	147,000	1,070,000
Related long-term debt		(2,164,000)	3,635,000	(777,000)
Net impact on Consolidated Statement of Operations					$ 0	$ 3,502,000	$ 0	$ (432,000)	$ 280,000	$ 293,000	$ (432,000)	$ 3,782,000	$ 293,000