Annual report pursuant to Section 13 and 15(d)

Profit Sharing/401(k) Plan - Narrative (Detail)

v3.8.0.1
Profit Sharing/401(k) Plan - Narrative (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Astronics Plan      
Share-based Compensation Arrangement by Share-based Payment Award      
Defined contribution plan charges recognized $ 7.4 $ 6.7 $ 6.3