OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2013		Jul. 31, 2012		Jul. 31, 2011
Equity [Abstract]
Pretax amount, Foreign currency translation	$ (1,557)		$ (107,749)		$ 101,553
Pretax amount, Pension liability adjustment	61,555		(63,473)		14,560
Pretax amount, Unrealized investment gains/(losses), net of reclassification adjustment	(2,308)	[1]	(9,180)	[1]	6,368	[1]
Pretax amount, Unrealized gains/(losses) on derivatives	(2,742)		270		0
Pretax amount, Other comprehensive gain/(loss)	54,948		(180,132)		122,481
Tax effect, Foreign currency translation	(11,508)		(2,066)		8,676
Tax effect, Pension liability adjustment	(22,322)		20,860		(3,814)
Tax effect, Unrealized investment gains/(losses), net of reclassification adjustment	827	[1]	3,284	[1]	(2,292)	[1]
Tax effect, Unrealized gains/(losses) on derivatives	170		0		0
Tax effect, Other comprehensive income/(loss)	(32,833)		22,078		2,570
Net amount, Foreign currency translation	(13,065)		(109,815)		110,229
Net amount, Pension liability adjustment	39,233		(42,613)		10,746
Net amount, Unrealized investment gains/(losses), net of reclassification adjustment	(1,481)	[1]	(5,896)	[1]	4,076	[1]
Net amount, Unrealized gains/(losses) on derivatives	(2,572)		270		0
Total other comprehensive income/(loss), net of income taxes	$ 22,115		$ (158,054)		$ 125,051

[1] The unrealized gains (losses) on available-for-sale securities, net of related taxes, consisted of the following: 2013 2012 2011Net unrealized gains/(losses) arising during the period, net of tax (expense)/benefit of $790, $(260) and $(2,292) in 2013, 2012 and 2011, respectively$(1,416) $56 $4,076Reclassification adjustment for gain included in net earnings (65) (5,952) —Other comprehensive income$(1,481) $(5,896) $4,076