Pro Forma Information of Company as of Business Combination (Detail) (Ultrasonix, USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Ultrasonix
Business Acquisition [Line Items]
Net revenue	$ 124.0	$ 128.9	$ 375.6	$ 407.7
Net income	$ 7.8	$ 4.8	$ 22.7	$ 19.4
Net income per share, basic	$ 0.63	$ 0.39	$ 1.83	$ 1.58
Net income per share, diluted	$ 0.62	$ 0.38	$ 1.79	$ 1.54

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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