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Shareholders' Equity - Additional Information (Detail)	Sep. 28, 2013
Statement Of Stockholders Equity [Abstract]
Stock distribution percentage	20.00%

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- Definition

Percentage of stock distribution.

+ References

No definition available.

+ Details

Name:	atro_PercentageOfStockDistribution
Namespace Prefix:	atro_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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- Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration