Supplemental Retirement Plan and Related Post Retirement Benefits - Additional Information (Detail)	3 Months Ended
Apr. 04, 2015 RetirementPlans
Compensation and Retirement Disclosure [Abstract]
Number of non-qualified supplemental retirement defined benefit plans	2

Number of non-qualified supplemental retirement defined benefit plans.

No definition available.

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