CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 31, 2019	Jul. 31, 2019
Current assets:
Cash and cash equivalents	$ 295,093	$ 279,072
Accounts receivable—net	162,561	158,114
Inventories	119,612	120,037
Prepaid expenses and other current assets	16,642	16,056
Total current assets	593,908	573,279
Assets, Noncurrent [Abstract]
Property, plant and equipment, net	112,565	110,048
Goodwill	411,328	410,987
Other intangible assets	34,860	36,123
Deferred income taxes	7,447	7,298
Operating leases assets	52,233	0
Other assets	18,881	19,573
Total	1,231,222	1,157,308
Current liabilities:
Accounts payable	59,385	64,810
Accrued compensation and benefits	63,794	62,509
Taxes, other than income taxes	8,885	8,107
Accrued income taxes	6,790	6,557
Current operating lease liabilities	14,857	0
Other current liabilities	52,092	49,796
Long-term Debt, Current Maturities	50,144	50,166
Total current liabilities	255,947	241,945
Long-Term operating lease liabilities	40,124	0
Other liabilities	58,616	64,589
Total liabilities	354,687	306,534
Stockholders’ equity:
Class A nonvoting common stock—Issued 51,261,487 shares, and outstanding 49,764,799 and 49,458,841 shares, respectively	513	513
Class B voting common stock—Issued and outstanding, 3,538,628 shares	35	35
Additional paid-in capital	327,241	329,969
Retained earnings	663,808	637,843
Treasury stock—1,496,688 and 1,802,646 shares, respectively, of Class A nonvoting common stock, at cost	(43,779)	(46,332)
Accumulated other comprehensive loss	(71,283)	(71,254)
Total stockholders’ equity	876,535	850,774
Total	$ 1,231,222	$ 1,157,308