Annual report pursuant to Section 13 and 15(d)

Long-Term Debt and Notes Payable - Summary of Long-Term Debt (Parenthetical) (Detail)

v2.4.1.9
Long-Term Debt and Notes Payable - Summary of Long-Term Debt (Parenthetical) (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Series 2007 Industrial Revenue Bonds [Member]  
Debt Instrument [Line Items]  
New York Industrial Development Agency payable 340,000atro_LongTermDebtAmountPayableAnnually
/ us-gaap_LongtermDebtTypeAxis
= atro_SeriesTwoZeroZeroSevenIndustrialRevenueBondsMember
New York Industrial Development Agency payable thereafter 330,000atro_LongTermDebtAmountPayableThereAfter
/ us-gaap_LongtermDebtTypeAxis
= atro_SeriesTwoZeroZeroSevenIndustrialRevenueBondsMember
Series 1999 Industrial Revenue Bonds [Member]  
Debt Instrument [Line Items]  
New York Industrial Development Agency payable 350,000atro_LongTermDebtAmountPayableAnnually
/ us-gaap_LongtermDebtTypeAxis
= atro_SeriesOneNineNineNineIndustrialRevenueBondsMember
New York Industrial Development Agency payable thereafter 145,000atro_LongTermDebtAmountPayableThereAfter
/ us-gaap_LongtermDebtTypeAxis
= atro_SeriesOneNineNineNineIndustrialRevenueBondsMember
Series 1998 Industrial Revenue Bonds [Member]  
Debt Instrument [Line Items]  
New York Industrial Development Agency payable 400,000atro_LongTermDebtAmountPayableAnnually
/ us-gaap_LongtermDebtTypeAxis
= atro_SeriesOneNineNineEightIndustrialRevenueBondsMember
Revolving Credit Facility [Member]  
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 1.67%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Minimum [Member] | Revolving Credit Facility [Member]  
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 1.375%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member] | Revolving Credit Facility [Member]  
Debt Instrument [Line Items]  
Interest rate on revolving credit at LIBOR rate 2.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember