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Segment Information, Revenues by Geography and Significant Customers (Revenues by geography) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Segment Reporting Information [Line Items]
Revenues by geography percentage	100.00%		100.00%
Domestic	$ 19,300		$ 24,400
Total revenues	61,535		79,167
North America [Member]
Segment Reporting Information [Line Items]
Revenues by geography percentage	33.00%	[1]	32.00%	[1]
Domestic	20,361	[1]	24,941	[1]
South America [Member]
Segment Reporting Information [Line Items]
Revenues by geography percentage	17.00%		25.00%
Domestic	10,243		19,835
Europe, the Middle East and Africa [Member]
Segment Reporting Information [Line Items]
Revenues by geography percentage	37.00%		31.00%
Foreign	23,144		24,783
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenues by geography percentage	13.00%		12.00%
Foreign	$ 7,787		$ 9,608
[1] Revenue for the United States was $19.3 million and $24.4 million for the three months ended September 30, 2012 and 2011, respectively.

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Revenues from external customers attributed to the entity's country of domicile.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph a(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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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=6880815&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

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-Article 5

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