CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
Cash flows from operating activities
Net income	$ 18,800	$ 14,254
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	3,454	2,822
Amortization	3,909	3,094
Stock-based compensation expense	2,922	1,720
Amortization of debt issuance costs	100	100
Loss on disposal of fixed assets	224	100
Fair value adjustments to acquisition related liabilities	9	(592)
Deferred income taxes	1,917	1,322
Excess tax benefits from stock-based compensation		(1,489)
Changes in assets and liabilities, net of effects of business acquisitions:
Accounts receivable	1,577	(236)
Inventories	(1,824)	(2,295)
Prepaid expenses and other current assets	(2,801)	(5,534)
Accounts payable and other current liabilities	(5,290)	(3,005)
Income taxes	1,911	4,854
Net cash provided by operating activities	24,908	15,115
Cash flows from investing activities
Capital expenditures	(8,143)	(3,167)
Proceeds from disposal of fixed assets	21
Acquisition of businesses, net of cash acquired	(57,768)	(79,810)
Other, net	255	(12)
Net cash used in investing activities	(65,635)	(82,989)
Cash flows from financing activities
Borrowings under revolving credit facility	61,000	83,000
Repayments under revolving credit facility	(16,000)	(14,000)
Excess tax benefits from stock-based compensation		1,489
Purchases of treasury stock	(6,216)	(3,138)
Net cash provided by financing activities	38,784	67,351
Effect of exchange rate changes on cash and cash equivalents	(289)	(66)
Decrease in cash and cash equivalents	(2,232)	(589)
Cash and cash equivalents at beginning of period	28,367	31,720
Cash and cash equivalents at end of period	$ 26,135	$ 31,131