Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 29, 2018
Disclosure Accrued Expenses [Abstract]
Accrued payroll and related expenses	$ 69,470	$ 74,952
Accrued warranty	67,947	59,451
Contract liabilities	56,099	57,913
Accrued customer rebates	35,329	45,740
Accrued short-term leases	21,143	0
Accrued Product Liability And Workers Compensation Liability Current	14,630	16,284
Accrued professional services	15,504	17,313
Accrued sales and other tax	16,351	19,452
Accrued agent commission	13,589	11,969
Other accrued expenses	58,668	64,372
Accrued expenses	$ 368,730	$ 367,446