CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 30, 2022	Jul. 31, 2021
Current assets:
Cash and cash equivalents	$ 103,068	$ 147,335
Accounts receivable, net of allowances for credit losses of $7,891 and $7,306, respectively	186,843	170,579
Inventories	177,156	136,107
Prepaid expenses and other current assets	12,550	11,083
Total current assets	479,617	465,104
Assets, Noncurrent [Abstract]
Property, plant and equipment—net	125,014	121,741
Goodwill	591,780	614,137
Other intangible assets	78,238	92,334
Deferred income taxes	14,804	16,343
Operating lease assets	30,466	41,880
Other assets	24,325	26,217
Total	1,344,244	1,377,756
Current liabilities:
Accounts payable	79,567	82,152
Accrued compensation and benefits	70,195	81,173
Taxes, other than income taxes	12,910	13,054
Accrued income taxes	4,264	3,915
Current operating lease liabilities	15,619	17,667
Other current liabilities	61,215	59,623
Total current liabilities	243,770	257,584
Liabilities, Noncurrent [Abstract]
Long-term debt	77,000	38,000
Long-term operating lease liabilities	17,591	28,347
Other liabilities	91,645	90,797
Total liabilities	430,006	414,728
Stockholders’ equity:
Additional paid-in capital	343,854	339,125
Retained earnings	862,583	788,369
Treasury stock—4,370,773 and 2,733,242 shares, respectively, of Class A nonvoting common stock, at cost	(193,859)	(109,061)
Accumulated other comprehensive loss	(98,888)	(55,953)
Total stockholders’ equity	914,238	963,028
Total	1,344,244	1,377,756
Class A Nonvoting Common Stock [Member]
Stockholders’ equity:
Common Stock, Value, Issued	513	513
Class B Voting Common Stock [Member]
Stockholders’ equity:
Common Stock, Value, Issued	$ 35	$ 35