Warranty Liability - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2020	Dec. 31, 2019	Sep. 28, 2019	Dec. 31, 2018
Product Warranty Liability
Accrued warranty liability	$ 51,033	$ 49,716	$ 46,812	$ 46,468
North America
Product Warranty Liability
Accrued warranty liability	45,300
Product warranty, discount adjustment	$ 2,600
Minimum
Product Warranty Liability
Product warranty, term	1 year
Minimum | North America
Product Warranty Liability
Product warranty discount rate (percentage)	0.69%
Maximum
Product Warranty Liability
Product warranty, term	10 years
Maximum | North America
Product Warranty Liability
Product warranty discount rate (percentage)	4.75%