CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Operating activities:
Net income	$ 94,645	$ 56,109
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,836	19,047
Non-cash portion of stock-based compensation expense	10,311	7,581
Deferred income taxes	3,796	26,501
Changes in operating assets and liabilities (net of effects of business acquisitions/divestitures):
Accounts receivable	332	(10,710)
Inventories	(9,254)	(7,790)
Prepaid expenses and other assets	(2,204)	480
Accounts payable and other liabilities	(19,176)	(133)
Income taxes	616	(1,863)
Net cash provided by operating activities	96,902	89,222
Investing activities:
Purchases of property, plant and equipment	(17,528)	(14,755)
Other	(1,810)	(197)
Net cash used in investing activities	(19,338)	(14,952)
Financing activities:
Payments of Dividends	(33,488)	(32,110)
Proceeds from exercise of stock options	20,333	10,011
Proceeds from borrowing on credit facilities	13,637	17,439
Repayment of borrowing on credit facilities	(13,568)	(69,012)
Other	(5,185)	(3,622)
Net cash used in financing activities	(18,271)	(77,294)
Effect of exchange rate changes on cash	(2,288)	(17)
Net increase (decrease) in cash and cash equivalents	57,005	(3,041)
Cash and cash equivalents, beginning of period	181,427	133,944
Cash and cash equivalents, end of period	$ 238,432	$ 130,903