CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Operating activities:
Net Income	$ 101,632	$ 84,684
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,240	17,731
Stock-based compensation expense	8,003	7,180
Deferred income taxes	(3,957)	(309)
Impairment charges	0	13,821
Equity in losses of unconsolidated affiliate	760	0
Other	(1,186)	1,698
Changes in operating assets and liabilities:
Accounts receivable	(13,247)	9,019
Inventories	15,210	(7,439)
Prepaid expenses and other assets	(2,584)	(5,653)
Accounts payable and accrued liabilities	39,244	(26,609)
Income taxes	(6,207)	1,790
Net cash provided by operating activities	154,908	95,913
Investing activities:
Purchases of property, plant and equipment	(21,411)	(21,616)
Other	2,567	(4,419)
Net cash used in investing activities	(18,844)	(26,035)
Financing activities:
Payment of dividends	(34,290)	(34,447)
Proceeds from exercise of stock options	1,612	5,212
Payments for employee taxes withheld from stock-based awards	(2,772)	(7,832)
Purchase of treasury stock	(3,593)	(64,113)
Other	(231)	133
Net cash used in financing activities	(39,274)	(101,047)
Effect of exchange rate changes on cash	7,368	(9,023)
Net increase (decrease) in cash and cash equivalents	104,158	(40,192)
Cash and cash equivalents, beginning of period	217,643	279,072
Cash and cash equivalents, end of period	$ 321,801	$ 238,880