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Costs and Estimated Earnings on Uncompleted Contracts - Additional Information (Detail) - USD ($) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2016 | Dec. 31, 2015
Costs In Excess Of Billings On Uncompleted Contracts Or Programs [Abstract] |  |
Provision for estimated losses on uncompleted contracts | $ 0 | $ 0

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- Definition Losses recognized in the current period on contracts which are expected to generate losses, which are probable and can be reasonably estimated, in a future period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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