Astronics Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Long-Term Debt and Notes Payable - Additional Information (Detail)

Long-Term Debt and Notes Payable - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended	0 Months Ended
	Jul. 18, 2013	Dec. 31, 2014	Sep. 26, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Interest rate on revolving credit line and term loan at LIBOR rate	Interest rate ranging from 225 basis points to 350 basis points above LIBOR, depending on the Company's leverage ratio	LIBOR plus between 1.50% and 2.50% based on the Company's leverage ratio
Term loan		$ 183,008,000us-gaap_LongTermDebt		$ 200,320,000us-gaap_LongTermDebt
Outstanding letter of credit		5 years
Outstanding letters of credit		1,100,000
Covenants permitted leverage ratio		18.7atro_CovenantLeverageRatioPermitted
Leverage ratio		1.28atro_LeverageRatio
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate on revolving credit at LIBOR rate		1.67%
Revolving credit facility		58,000,000
Term loan		165,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility allocated			20,000,000
Credit Agreement [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility	75,000,000	125,000,000
Term loan	190,000,000
Outstanding letter of credit		5 years
Credit Agreement [Member] \| Revolving Credit Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Revolving credit facility, maturity date		Jun. 30, 2018
Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Revolving credit facility			6,000,000
Term loan outstanding amount			180,500,000
Replacement of original facility			350,000,000
Line of credit facility increase amount			150,000,000
Maturity date of loans			Sep. 26, 2019
Debt instrument description		Covenants in the Agreement have been modified to where the maximum permitted leverage ratio of funded debt to Adjusted EBITDA (as defined in the Agreement) is 3.5 to 1, increasing to 4.0 to 1 for up to two fiscal quarters following the closing of an acquisition permitted under the Agreement.
Covenants permitted leverage ratio		3.5
Libor rate description		LIBOR plus between 137.5 basis points and 225 basis points based upon the Company's leverage ratio
Minimum interest coverage ratio		3.0
Minimum [Member]
Debt Instrument [Line Items]
Line of credit facility unused capacity	0.25%	0.25%
Minimum [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate on revolving credit at LIBOR rate		1.375%
Minimum [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Interest rate on revolving credit at LIBOR rate		1.50%
Minimum [Member] \| Credit Agreement [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit line		35,000,000
Interest rate on revolving credit at LIBOR rate		2.25%
Minimum [Member] \| Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee		0.175%
Maximum [Member]
Debt Instrument [Line Items]
Line of credit facility unused capacity	0.50%	0.50%
Maximum [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate on revolving credit at LIBOR rate		2.25%
Maximum [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Interest rate on revolving credit at LIBOR rate		2.50%
Maximum [Member] \| Credit Agreement [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit line		$ 75,000,000
Interest rate on revolving credit at LIBOR rate		3.50%
Maximum [Member] \| Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Covenants permitted leverage ratio		4.0
Line of Credit Facility, Commitment Fee		0.35%