Gain (Losses) on Derivative Financial Instruments (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Cross currency swap
Derivative Instruments, Gain (Loss)
Derivative and non derivative instruments gain (loss) recognized in accumulated oher comprehensive income (loss)	$ 10,934	$ 22,684	$ 3,140	$ 44,813
Foreign denominated debt
Derivative Instruments, Gain (Loss)
Derivative and non derivative instruments gain (loss) recognized in accumulated oher comprehensive income (loss)	$ (2,131)	$ 17,151	$ 2,202	$ 42,296