Fair Value Measures And Other Financial Instruments (Schedule Of Effect Of The Interest Rate Swaps Designated As Cash Flow Hedges) (Details) (Interest Rate Swap [Member], Cash Flow Hedging [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in other comprehensive income	$ (260)
Loss reclassified from accumulated other comprehensive income into interest expense	(261)
Total	$ (521)