CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 88,273	$ 71,513
Other comprehensive income/(loss), net of income taxes:
Foreign currency translation	(81,297)	43,227
Pension liability adjustment	6,352	(594)
Unrealized investment losses	(632)	(82)
Unrealized gains/(losses) on derivatives	(1,216)	2,455
Total other comprehensive income/(loss), net of income taxes	(76,793)	45,006
Comprehensive income	$ 11,480	$ 116,519