Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Cash flows from operating activities
Net income	$ 38,042	$ 55,417
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	9,563	8,190
Amortization	10,552	8,412
Stock-based compensation expense	6,163	4,590
Deferred income taxes	(3,096)	(6,453)
Other non-cash items, net	(154)	299
Changes in assets and liabilities, net of effects of acquisitions/dispositions:
Accounts receivable	(6,909)	1,145
Inventories	(9,517)	(8,073)
Prepaid expenses and other assets	(2,980)	(2,139)
Accounts payable and other liabilities	(10,105)	557
Income taxes	(2,365)	(7,274)
Net cash provided by operating activities	29,194	54,671
Cash flows from investing activities
Capital expenditures	(62,062)	(13,476)
Proceeds from sale of business	3,053	0
Acquisitions, net of cash acquired	(24,047)	(64,287)
Net cash used in investing activities	(83,056)	(77,763)
Cash flows from financing activities
Repayments of long-term debt	(5,000)	0
Borrowings under revolving credit facility	45,000	61,300
Repayments under revolving credit facility	0	(27,300)
Dividends paid	(4,173)	(3,545)
Purchases of treasury stock	(4,355)	(5,952)
Net cash provided by financing activities	31,472	24,503
Effect of exchange rate changes on cash and cash equivalents	(676)	1,982
(Decrease) increase in cash and cash equivalents	(23,066)	3,393
Cash and cash equivalents at beginning of period	94,097	36,584
Cash and cash equivalents at end of period	$ 71,031	$ 39,977