Goodwill and Other Intangible Assets, Net - Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2019	Sep. 27, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Gross balance at beginning of period			$ 212,413
Accumulated impairment			(16,252)
Net balance at beginning of period	$ 196,161
Additions	0
Impairments	0
Foreign currency translation	(4,943)
Net balance at end of period	$ 196,161	$ 191,218	$ 196,161
Aerosystems [Member]
Goodwill [Roll Forward]
Net balance at end of period		$ 49,100