Product Warranty and Recall Campaigns (Warranty and Recall Liability) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 24, 2017	Sep. 30, 2018	Sep. 24, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance, beginning of period	$ 89,943	$ 80,681	$ 94,202	$ 79,482
Warranties issued during the period	12,038	11,802	43,548	46,638
Settlements made during the period	(21,550)	(22,322)	(59,965)	(62,855)
Recalls and changes to pre-existing warranty liabilities	3,493	646	6,139	7,542
Balance, end of period	$ 83,924	$ 70,807	$ 83,924	$ 70,807