Revenue Recognition (Tables)

3 Months Ended

Oct. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of net sales disaggregated by geography and product line

The following table gives information as to the net sales disaggregated by geography and product line:

	Three Months Ended October 31,
Net sales by geography	2019		2018
United States	$	190,084	$	168,938
Europe/Africa/Middle East	41,018		32,014
Asia/Pacific	17,065		15,752
Canada	7,833		7,373
Latin America/South America	1,246		1,512
Total	$	257,246	$	225,589
Net sales by product line
Capital equipment	$	58,748	$	58,132
Consumables	153,279		136,821
Product service	31,568		29,829
Instrument sales	13,520		—
All other(1)	131		807
Total	$	257,246	$	225,589

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(1) Primarily includes software licensing revenues.

Schedule of contract liabilities activity

A summary of contract liabilities activity follows:

	Three Months Ended October 31,
	2019			2018
Beginning balance	$	28,235		$	29,015
Revenue deferred in current year	2,007			14,524
Deferred revenue recognized	(2,982		)	(13,547		)
Foreign currency translation	104			(163		)
Ending balance	27,364			29,829
Contract liabilities included in Other long-term liabilities	(384		)	(549		)
Deferred revenue	$	26,980		$	29,280