Amount of cash paid to acquire the entity.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph f(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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityCashPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Acquisition Narrative (Detail) (USD $)		12 Months Ended			3 Months Ended
Acquisition Narrative (Detail) (USD $)	Aug. 01, 2013 Matrical	Sep. 30, 2013 Matrical Completed Technology	Sep. 30, 2013 Matrical Customer Relationships	Oct. 29, 2012 Crossing Automation Inc	Dec. 31, 2013 Crossing Automation Inc Completed Technology	Dec. 31, 2013 Crossing Automation Inc Customer Relationships
Business Acquisition [Line Items]
Business acquisition, cash paid	$ 9,300,000
Business acquisition, cash payment	$ 9,326,000			$ 59,005,000
Cash flow discount rate used to determine fair value attributed to completed technologies	18.00%				15.00%
Useful life of intangible assets acquired		4 years 7 months	7 years		7 years 8 months	8 years