Derivative Instruments (Set Forth Terms Of Interest Rate Swap Derivative Instruments) (Details) (USD $)	6 Months Ended
	Jun. 30, 2012
Interest Rate Swap December 31, 2013 [Member]
Derivative [Line Items]
Notional Amount	$ 31,406,000
Pay Fixed Rate	1.34%
Receive Variable Rate	0.461%
Maturity Date	Dec. 31, 2013
Interest Rate Swap June 30, 2016 [Member]
Derivative [Line Items]
Notional Amount	$ 84,959,000
Pay Fixed Rate	5.50%
Receive Variable Rate	3.625%
Maturity Date	Jun. 30, 2016