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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Statement of Cash Flows [Abstract]    
Net income $ 37,498 $ 30,637
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 5,634 5,960
Non-cash portion of stock-based compensation expense 3,618 4,965
Deferred income taxes 1,009 2,164
Other 1,533 218
Changes in operating assets and liabilities (net of effects of business acquisitions/divestitures):    
Accounts receivable (4,362) (6,709)
Inventories 249 (3,125)
Prepaid expenses and other assets (1,404) (2,197)
Accounts payable and accrued liabilities (5,193) (14,288)
Income taxes 266 1,193
Net cash provided by operating activities 38,848 18,818
Investing activities:    
Purchases of property, plant and equipment (7,724) (6,009)
Other 527 337
Net cash used in investing activities (7,197) (5,672)
Financing activities:    
Payment of dividends (11,533) (11,096)
Proceeds from Issuance of Common Stock 3,411 13,001
Payments Related to Tax Withholding for Share-based Compensation (7,269) (2,937)
Proceeds from borrowing on credit facilities 0 5,737
Debt issuance costs 0 (2,269)
Other 65 (1,772)
Net cash (used in) provided by financing activities (15,326) 664
Effect of exchange rate changes on cash and cash equivalents (304) (3,061)
Net increase in cash and cash equivalents 16,021 10,749
Cash and cash equivalents, beginning of period 279,072 181,427
Cash and cash equivalents, end of period $ 295,093 $ 192,176