Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2010
Net sales	$ 1,324,269	$ 1,339,597	$ 1,259,096
Cost of products sold	687,963	683,401	635,799
Gross margin	636,306	656,196	623,297
Operating expenses:
Research and development	38,440	43,001	42,621
Selling, general and administrative	430,310	441,815	435,906
Restructuring charges	12,110	9,188	15,314
Impairment charge	115,688
Total operating expenses	596,548	494,004	493,841
Operating income	39,758	162,192	129,456
Other income (expense):
Investment and other income - net	2,082	3,990	1,168
Interest expense	(19,090)	(22,124)	(21,222)
Net other expense	(17,008)	(18,134)	(20,054)
Income before income taxes	22,750	144,058	109,402
Income taxes	40,661	35,406	27,446
Net (loss) income	$ (17,911)	$ 108,652	$ 81,956
Weighted average Class A and Class B common shares outstanding
Basic	52,453	52,639	52,402
Diluted	52,453	53,133	52,946
Class A nonvoting common stock
Net (loss) income per common share:
Basic	$ (0.35)	$ 2.06	$ 1.56
Diluted	$ (0.35)	$ 2.04	$ 1.55
Dividends	$ 0.74	$ 0.72	$ 0.70
Class B voting common stock
Net (loss) income per common share:
Basic	$ (0.36)	$ 2.04	$ 1.55
Diluted	$ (0.36)	$ 2.03	$ 1.53
Dividends	$ 0.72	$ 0.70	$ 0.68