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		6 Months Ended
	Sep. 30, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Net foreign exchange derivative contract (gains) losses	$ 2,500	$ 105	$ (15)	$ 1,333	$ 1,197
Net foreign currency transactional and re-measurement (gains) losses		6	(267)	(1,150)	2,094
Net foreign currency (gains) losses		$ 111	$ (282)	$ 183	$ 3,291