Financial Instruments, Derivative Instruments And Hedging (Schedule Of Maturity Of Foreign Currency Derivative Contracts) (Detail) In Thousands, unless otherwise specified	Sep. 30, 2012 USD ($)	Sep. 30, 2012 EUR (€)	Sep. 30, 2012 Discontinued Operations [Member] USD ($)	Sep. 30, 2012 Discontinued Operations [Member] EUR (€)	Sep. 30, 2012 Continuing Operations [Member] USD ($)	Sep. 30, 2012 Continuing Operations [Member] EUR (€)	Sep. 30, 2012 Maturity 2012 [Member] USD ($)	Sep. 30, 2012 Maturity 2012 [Member] EUR (€)	Sep. 30, 2012 Maturity 2013 [Member] USD ($)	Sep. 30, 2012 Maturity 2013 [Member] EUR (€)
Maturity Of Foreign Currency Exchange Contracts [Line Items]
Amount to buy		€ 431		€ (431)				€ 431
Settlement Amount at Contract Rate to buy	553		(553)				553
Market Value of foreign exchange currency contracts, if unhedged, as of the Balance Sheet Date - To Buy	552		(552)				552
Amount to Sell		31,219		(31,219)				4,219		27,000
Settlement Amount at Contract Rate to sell	38,133		(38,133)				5,239		32,894
Market Value of foreign exchange contracts, if unhedged, as of the Balance Sheet Date - To Sell	$ 40,176		$ (40,176)				$ 5,425		$ 34,751