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Basis of Presentation - Additional Information (Detail) (USD $)
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3 Months Ended | 0 Months Ended | |
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Apr. 04, 2015
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Mar. 29, 2014
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Jan. 14, 2015
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| Schedule Of Accounting Policies [Line Items] | |||
| Research and development, design and related engineering | $ 22,200,000us-gaap_ResearchAndDevelopmentExpense | $ 17,200,000us-gaap_ResearchAndDevelopmentExpense | |
| Derivative instruments outstanding | $ 0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet | ||
| Armstrong [Member] | |||
| Schedule Of Accounting Policies [Line Items] | |||
| Percentage of acquired stock |
100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = atro_ArmstrongMember |
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| Date of acquisition | Jan. 14, 2015 | ||
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- Details
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- Definition
Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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