Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Cash flows from operating activities
Net income	$ 46,217	$ 74,153
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	15,455	12,816
Amortization	15,508	12,892
Stock-based compensation expense	11,885	7,033
Deferred income taxes	(2,671)	(7,499)
Other non-cash items, net	263	586
Changes in assets and liabilities, net of effects of acquisitions/dispositions:
Accounts receivable	(18,642)	892
Inventories	(24,671)	(9,791)
Prepaid expenses and other assets	(4,929)	(7,256)
Accounts payable and other liabilities	13,608	13,859
Income taxes	(3,537)	(7,682)
Net cash provided by operating activities	48,486	90,003
Cash flows from investing activities
Capital expenditures	(75,387)	(23,772)
Proceeds from sale of business	3,053	0
Acquisitions, net of cash acquired	(40,644)	(84,595)
Net cash used in investing activities	(112,978)	(108,367)
Cash flows from financing activities
Repayments of long-term debt	(12,707)	0
Borrowings under revolving credit facility	50,000	82,300
Repayments under revolving credit facility	(7,000)	(39,300)
Dividends paid	(4,173)	(3,546)
Purchases of treasury stock	(4,628)	(6,216)
Net cash provided by financing activities	21,492	33,238
Effect of exchange rate changes on cash and cash equivalents	251	458
(Decrease) increase in cash and cash equivalents	(42,749)	15,332
Cash and cash equivalents at beginning of period	94,097	36,584
Cash and cash equivalents at end of period	$ 51,348	$ 51,916