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Discontinued Operations (Results of Operations from Discontinued Operations) (Detail) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Impairment of assets, disposal group, before benefit from income taxes |  |  | $ (320,000) |
Loss on disposal before provision for income taxes |  |  |  | (248,000)
(Loss) income from discontinued operations, net of tax | (484,000) | (1,075,000) | (1,431,000) | 1,399,000
DirectStar [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Revenue |  | 25,300,000 |  | 60,200,000
Income (loss) from operations before (provision for) benefit from income taxes |  | 800,000 |  | 6,200,000
Loss on disposal before provision for income taxes |  | (200,000) |  | (200,000)
(Provision for) benefit from income taxes |  | (300,000) |  | (2,300,000)
(Loss) income from discontinued operations, net of tax |  | 300,000 |  | 3,700,000
Globetec [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Revenue | 6,900,000 | 3,400,000 | 13,200,000 | 8,700,000
Income (loss) from operations before (provision for) benefit from income taxes | (900,000) | (1,700,000) | (2,100,000) | (3,200,000)
Impairment of assets, disposal group, before benefit from income taxes | (300,000) | 0 | (300,000) | 0
(Provision for) benefit from income taxes | 700,000 | 300,000 | 1,000,000 | 900,000
(Loss) income from discontinued operations, net of tax | $ (500,000) | $ (1,400,000) | $ (1,400,000) | $ (2,300,000)

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- Definition Pretax provision recognizing a loss for initial, or subsequent, write-down to fair value (less cost to sell) of a disposal group that is classified as a component of the entity, which remains unsold as of the reporting date. May include the recognition of a pretax (gain) for a subsequent increase in fair value (less cost to sell), but not in excess of the cumulative loss previously recognized through write-downs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 43 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 -Subparagraph b -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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