Astronics Corporation Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Summary of Changes in Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2021 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 58,282
Foreign Currency Translation	15
Balance at end of period	58,297
Operating Segments \| Aerospace Segment
Goodwill [Roll Forward]
Balance at beginning of period	36,648
Foreign Currency Translation	15
Balance at end of period	36,663
Operating Segments \| Test Systems Segment
Goodwill [Roll Forward]
Balance at beginning of period	21,634
Foreign Currency Translation	0
Balance at end of period	$ 21,634