Business Segments - Segment Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Net sales	$ 704,134	$ 737,671	$ 2,002,428	$ 2,037,575
Operating profit (loss)	52,769	81,201	110,872	140,419
Interest expense	(7,476)	(7,930)	(23,599)	(24,038)
Interest income	1,507	2,399	6,887	6,702
Other pension and postretirement benefit expense	(9,562)	(6,932)	(28,212)	(20,885)
Other non-operating (expense) income	(509)	2,922	(593)	(129)
Income before income taxes	36,729	71,660	65,355	102,069
Americas Tire
Segment Reporting Information [Line Items]
Net sales	594,015	619,763	1,669,310	1,672,396
International Tire
Segment Reporting Information [Line Items]
Net sales	110,119	117,908	333,118	365,179
Operating Segments | Americas Tire
Segment Reporting Information [Line Items]
Net sales	601,957	628,704	1,699,201	1,698,507
Operating profit (loss)	67,941	87,353	153,544	159,068
Operating Segments | International Tire
Segment Reporting Information [Line Items]
Net sales	132,270	162,401	414,569	491,484
Operating profit (loss)	(4,831)	5,994	(7,466)	19,080
Intercompany
Segment Reporting Information [Line Items]
Net sales	(30,093)	(53,434)	(111,342)	(152,416)
Operating profit (loss)	710	372	(425)	459
Intercompany | Americas Tire
Segment Reporting Information [Line Items]
Net sales	7,942	8,941	29,891	26,111
Intercompany | International Tire
Segment Reporting Information [Line Items]
Net sales	22,151	44,493	81,451	126,305
Corporation
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (11,051)	$ (12,518)	$ (34,781)	$ (38,188)