Revenue from Contracts with Customers - Net Change in Estimate (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021 USD ($) project	Sep. 27, 2020 USD ($) project	Oct. 03, 2021 USD ($) project	Sep. 27, 2020 USD ($) project
Revenue from Contract with Customer [Abstract]
Increase in revenue from net changes in transaction prices	$ 0	$ 1,142	$ 2,131	$ 834
Decrease in revenue from net changes in input cost estimates	0	(1,041)	(2,084)	(1,092)
Net increase (decrease) in revenue from net changes in estimates	$ 0	$ 101	$ 47	$ (258)
Number of projects | project	0	2	3	4
Net change in estimate as a percentage of aggregate revenue for associated projects	0.00%	0.30%	0.60%	(0.20%)