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Sales to Major Customers - Additional Information (Detail)	3 Months Ended
	Mar. 29, 2014 Customer
Segment Reporting [Abstract]
Number of major customers	2

X

- Definition

Number of major customers.

+ References

No definition available.

+ Details

Name:	atro_NumberOfMajorCustomers
Namespace Prefix:	atro_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

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