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Accumulated Other Comprehensive (Loss) Income - Components of and Changes in AOCL (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	$ (66,131)	$ (89,004)	$ (150,662)
Net current period other comprehensive loss	(177,392)	22,873	59,593
Other comprehensive loss before reclassifications	(177,450)	18,702	48,537
Amounts reclassified from accumulated other comprehensive loss	58	4,171	11,056
Stock Issued During Period, Value, Other			2,065
Net current period other comprehensive loss	(180,737)	23,238	59,044
Accumulated Other Comprehensive (Loss) Income	(243,523)	(66,131)	(89,004)
Post-retirement Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(93,742)	(83,936)	(132,991)
Net current period other comprehensive loss	(45,051)	(9,806)	49,055
Other comprehensive loss before reclassifications	(47,982)	(11,990)	39,376
Amounts reclassified from accumulated other comprehensive loss	2,931	2,184	9,679
Accumulated Other Comprehensive (Loss) Income	(138,793)	(93,742)	(83,936)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	38,811	7,413	(4,424)
Net current period other comprehensive loss	(136,120)	31,398	9,772
Other comprehensive loss before reclassifications	(136,120)	31,398	9,772
Stock Issued During Period, Value, Other			2,065
Accumulated Other Comprehensive (Loss) Income	(97,309)	38,811	7,413
Currency Translation Adjustment Relating to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	1,087	721	1,271
Other comprehensive loss before reclassifications	(3,345)	366	(550)
Net current period other comprehensive loss	(3,345)	366	(550)
Accumulated Other Comprehensive (Loss) Income	(2,258)	1,087	721
Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(11,200)	(12,481)	(13,247)
Net current period other comprehensive loss	3,779	1,281	766
Other comprehensive loss before reclassifications	6,652	(706)	(611)
Amounts reclassified from accumulated other comprehensive loss	(2,873)	1,987	1,377
Accumulated Other Comprehensive (Loss) Income	(7,421)	(11,200)	(12,481)
Noncontrolling Interests [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	1,087	721	1,271
Other comprehensive loss before reclassifications	(3,345)	366	(550)
Stock Issued During Period, Value, Other	0	0	7,727
Net current period other comprehensive loss	(3,345)	366	(550)
Accumulated Other Comprehensive (Loss) Income	$ (2,258)	$ 1,087	$ 721

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