Business Segments - Information on Operating Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Net sales	$ 733,843	$ 750,913	$ 2,097,621	$ 2,140,982
Operating profit (loss):	101,377	78,228	224,879	279,249
Interest expense	(7,591)	(6,795)	(23,629)	(19,717)
Interest income	1,776	1,018	5,333	2,907
Other non-operating (expense) income	(978)	1,785	(1,468)	4,672
Income before income taxes	94,584	74,236	205,115	267,111
Americas Tire
Segment Reporting Information [Line Items]
Net sales	615,261	658,727	1,742,863	1,866,926
Operating profit (loss):	117,465	101,522	263,951	323,667
International Tire
Segment Reporting Information [Line Items]
Net sales	118,582	92,186	354,758	274,056
Operating profit (loss):	591	3,265	3,518	4,645
Eliminations - Intercompany
Segment Reporting Information [Line Items]
Net sales	(54,925)	(34,517)	(131,197)	(105,410)
Operating profit (loss):	(887)	(117)	(1,413)	(872)
Eliminations - Intercompany | Americas Tire
Segment Reporting Information [Line Items]
Net sales	10,162	13,914	29,275	39,773
Eliminations - Intercompany | International Tire
Segment Reporting Information [Line Items]
Net sales	44,763	20,603	101,922	65,637
Operating Segments | Americas Tire
Segment Reporting Information [Line Items]
Net sales	625,423	672,641	1,772,138	1,906,699
Operating Segments | International Tire
Segment Reporting Information [Line Items]
Net sales	163,345	112,789	456,680	339,693
Unallocated corporate charges
Segment Reporting Information [Line Items]
Operating profit (loss):	$ (15,792)	$ (26,442)	$ (41,177)	$ (48,191)