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Customer and Geographic Information (Tables) | 6 Months Ended
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Jan. 31, 2017
Geographic Areas, Revenues from External Customers [Abstract] |
Schedule of net sales, as a percentage, by geography and customer type | Sales by geography and customer type, as a percentage of consolidated net sales, are as follows:
|  | Three months ended January 31, |  | Six months ended January 31,
|  | 2017 |  | 2016 |  | 2017 |  | 2016
United States |  |  |  |  |  |  |  |
U.S. government |  | 32.1 | % |  | 42.0 | % |  | 33.7 | % |  | 41.7 | %
Domestic |  | 35.8 | % |  | 20.0 | % |  | 36.3 | % |  | 17.4 | %
Total United States |  | 67.9 | % |  | 62.0 | % |  | 70.0 | % |  | 59.1 | %
International |  | 32.1 | % |  | 38.0 | % |  | 30.0 | % |  | 40.9 | %
Total |  | 100.0 | % |  | 100.0 | % |  | 100.0 | % |  | 100.0 | %

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 + Details
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