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Goodwill and Intangible Assets - Intangible Assets (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Mar. 12, 2013
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Acquisition purchase price | $ 2,454 |
Alter Power Systems [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquisition purchase price | 2,454 | 2,454
Intangible asset in connection with acquisition | 3,093 |
Completed technology [Member] | Alter Power Systems [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible asset in connection with acquisition | 2,495 |
Trade names [Member] | Alter Power Systems [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible asset in connection with acquisition | $ 598 |

X
- Definition The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. + References Reference 1: 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Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. + Details
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- Definition The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 52 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. + Details
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- Details
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