Revenue Recognition Contract balances (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jul. 04, 2020	Jul. 04, 2020	Sep. 28, 2019
Change in Contract with Customer, Liability [Abstract]
Contract with customer, beginning balance		$ 42,550
Additions to customer deposits and deferred revenue		137,747
Amount of customer deposits and deferred revenue recognized in income	$ 48,674	(126,501)
Translation adjustments		260
Contract with customer, ending balance	54,056	54,056
Customer deposits	41,329	41,329	$ 34,538
Customer deposits and deferred revenue, noncurrent	$ 12,727	$ 12,727	$ 8,012