ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at July 31, 2014	$ (14,921)	$ (40,792)
Other comprehensive income/(loss) before reclassifications	(81,630)	44,756
Amounts reclassified from accumulated other comprehensive income (loss)	377	2,993
Foreign exchange adjustments and other	4,460	(2,743)
Balance at October 31, 2014	(91,714)	4,214
Foreign Currency Translation [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at July 31, 2014	98,689	84,598
Other comprehensive income/(loss) before reclassifications	(81,297)	43,227
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Balance at October 31, 2014	17,392	127,825
Defined Benefit Pension Plan [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at July 31, 2014	(121,280)	(125,211)
Other comprehensive income/(loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	1,892	2,149
Foreign exchange adjustments and other	4,460	(2,743)
Balance at October 31, 2014	(114,928)	(125,805)
Unrealized investment gains/(losses) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at July 31, 2014	2,880	2,123
Other comprehensive income/(loss) before reclassifications	(621)	(119)
Amounts reclassified from accumulated other comprehensive income (loss)	(11)	37
Balance at October 31, 2014	2,248	2,041
Unrealized gains/(losses) on derivatives [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at July 31, 2014	4,790	(2,302)
Other comprehensive income/(loss) before reclassifications	288	1,648
Amounts reclassified from accumulated other comprehensive income (loss)	(1,504)	807
Balance at October 31, 2014	$ 3,574	$ 153