Acquisitions (Tables)

3 Months Ended

Oct. 31, 2017

Business Combinations [Abstract]

Schedule of purchase price allocated to the assets acquired and assumed liabilities based on estimated fair values

	2018			2017
Purchase Price Allocation	BHT Group(1)			CR Kennedy		Vantage(1)		Accutron(1)
Purchase Price:
Cash paid (net of cash acquired)	$	60,345		$	11,999	$	4,044	$	53,049
Debt acquired	—			—		—		—
Total	$	60,345		$	11,999	$	4,044	$	53,049
Allocation:
Property and equipment	835			—		433		1,676
Amortizable intangible assets:
Customer relationships	12,500			4,200		992		12,800
Technology	6,200			—		—		10,000
Brand names	—			—		—		2,000
Goodwill	41,509			5,894		2,299		21,989
Deferred income taxes	(5,881		)	—		—		112
Other working capital	5,182			1,905		320		4,472
Total	$	60,345		$	11,999	$	4,044	$	53,049

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(1) The excess purchase price over net assets acquired was assigned to goodwill, all of which is deductible for income tax purposes.