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Derivatives and Hedging Activities (Derivative Contracts and Changes in Underlying Value of the Foreign Currency Exposures) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Net foreign exchange derivative contract gain (loss)	$ 2,500	$ 1,223	$ 1,212
Net foreign currency transaction and remeasurement gain (loss)		(1,150)	2,361
Net foreign currency gain (loss)		$ 73	$ 3,573

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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