CONSOLIDATED STATEMENTS OF STOCKHOLDERS' INVESTMENT (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ (45,968)	$ (154,535)	$ (17,911)
Stock-based compensation expense	5,214	1,736	9,735
Purchase of shares of Class A Common Stock	30,581	5,121	49,933
Cash dividends on Common Stock	40,487	39,243	38,899
Common Stock, Value, Issued	548	548	548
Additional paid-in capital	311,811	306,191	313,008
Earnings retained in the business	452,057	538,512	732,290
Treasury Stock, Value	(93,337)	(69,797)	(92,600)
Accumulated other comprehensive income	64,156	56,063	59,411
Other	(2,159)	(720)	(3,304)
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares of Class A Common Stock under stock option plan	847	(9,721)	(3,516)
Stockholder's equity, other	(371)	(1,266)	(1,637)
Tax benefit from exercise of stock options and deferred comp distributions	(70)	2,434	1,167
Stock-based compensation expense	5,214	1,736	9,467
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income		(154,535)	(17,911)
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares of Class A Common Stock under stock option plan	11,266	30,045	7,380
Stockholder's equity, other	(4,225)	(2,121)	(30)
Purchase of shares of Class A Common Stock	(30,581)	(5,121)	(49,933)
Accumulated Other Comprehensive Income (Loss) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net currency translation adjustment and other	8,093	(3,348)	(54,487)
Other equity component [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholder's equity, other	(1,439)	2,584	1,560
Common Class A [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends on Common Stock	(37,786)	(36,613)	(36,340)
Class B voting common stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends on Common Stock	$ (2,701)	$ (2,630)	$ (2,559)