Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Cash flows from operating activities:
Net income	$ 254,790	$ 173,747
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	25,588	17,451
Amortization of intangible assets	48,710	17,662
Amortization of debt issuance costs	1,177
Impairment charges		9,113
Deferred income tax benefit	(9,261)	(1,379)
(Gain) loss on disposition of property, plant and equipment	(2,246)	20
Stock-based compensation expense	9,058	6,991
Excess tax benefits from stock-based awards		(291)
Changes in assets and liabilities (excluding acquisitions):
Accounts receivable	(223,186)	(112,112)
Inventories	(55,799)	(29,137)
Prepaid income taxes, expenses and other	(4,612)	(2,010)
Accounts payable	85,651	35,084
Accrued liabilities	46,604	28,523
Other liabilities	6,360	1,246
Net cash provided by operating activities	182,834	144,908
Cash flows from investing activities:
Purchases of property, plant and equipment	(79,456)	(39,411)
Proceeds from dispositions of property, plant and equipment	4,630	236
Proceeds from notes receivable		8,367
Acquisitions	(5,039)
Other	(1,581)	(613)
Net cash used in investing activities	(81,446)	(31,421)
Cash flows from financing activities:
Principal payments on revolving credit facility	(65,000)
Regular cash dividends paid	(52,057)	(47,227)
Principal payments on capital lease obligations	(250)	(248)
Excess tax benefits from stock-based awards		291
Payments related to vesting of stock-based awards	(4,572)	(2,484)
Net cash used in financing activities	(121,879)	(49,668)
Net increase (decrease) in cash and cash equivalents	(20,491)	63,819
Cash and cash equivalents, beginning of period	209,902	183,478
Cash and cash equivalents, end of period	189,411	247,297
Supplemental cash flow information:
Income taxes paid	130,802	85,702
Interest paid	6,652	508
Non-cash transactions:
Capital expenditures in accounts payable	$ 2,605	$ 963