Fair Value Measures And Other Financial Instruments (Schedule Of Effect Of Interest Rate Swaps Designated As Cash Flow Hedges) (Detail) (Cash Flow Hedging [Member], Interest Rate Swap [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in other comprehensive income	$ (3,729)	$ (11,729)
Loss reclassified from accumulated other comprehensive income into interest expense	$ (988)	$ (1,722)