Credit Facility (Summary Of Costs Incurred In Connection With Credit Facilities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Credit Facility [Abstract]
Credit facility fees incurred	$ 137	$ 163	$ 442	$ 341