SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Oct. 31, 2014	Oct. 31, 2013
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net sales	$ 696,492	$ 629,779
Operating Income (Loss) [Abstract]
ROTC	9,240	9,198
Interest expense, net	6,702	5,977
Earnings before income taxes	118,033	92,388
Operating Segments [Member]
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(150,712)	(123,527)
Corporate, Non-Segment [Member]
Operating Income (Loss) [Abstract]
Operating Income (Loss)	16,737	15,964
Segment Reconciling Items [Member]
Operating Income (Loss) [Abstract]
ROTC	9,240	9,198
Interest expense, net	6,702	5,977
Life Sciences Segment [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net sales	352,464	318,946
Life Sciences Segment [Member] \| Operating Segments [Member]
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(86,480)	(73,045)
Industrial Segment [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net sales	344,028	310,833
Industrial Segment [Member] \| Operating Segments [Member]
Operating Income (Loss) [Abstract]
Operating Income (Loss)	$ (64,232)	$ (50,482)

Restructuring And Other Gains Charges

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

+ Details

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- Definition

The net amount of nonoperating interest income (expense).

+ References

No definition available.

+ Details

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ 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=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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