Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Oct. 01, 2021	Oct. 02, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs	$ 2,611	$ 1,541	$ 5,479	$ 7,820
Executive Officer
Restructuring Cost and Reserve [Line Items]
Severance costs	2,200		2,200
Bal Seal [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs				500
G&A Reduction Effort [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 400	700	$ 3,300	3,800
COVID-19 [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		$ 500		$ 3,200