Business Segments - Segment Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 619,163	$ 601,496
Operating profit (loss)	26,431	26,454
Interest expense	(8,314)	(7,691)
Interest income	3,380	2,315
Other pension and postretirement benefit expense	(9,362)	(6,986)
Other non-operating income (expense)	1,380	(1,658)
Income before income taxes	13,515	12,434
Americas Tire
Segment Reporting Information [Line Items]
Net sales	504,758	478,827
International Tire
Segment Reporting Information [Line Items]
Net sales	114,406	122,669
Operating Segments | Americas Tire
Segment Reporting Information [Line Items]
Net sales	514,936	485,392
Operating profit (loss)	38,789	31,236
Operating Segments | International Tire
Segment Reporting Information [Line Items]
Net sales	143,785	161,244
Operating profit (loss)	(1,339)	7,434
Intercompany
Segment Reporting Information [Line Items]
Net sales	(39,558)	(45,140)
Operating profit (loss)	(566)	(250)
Intercompany | Americas Tire
Segment Reporting Information [Line Items]
Net sales	10,178	6,565
Intercompany | International Tire
Segment Reporting Information [Line Items]
Net sales	29,379	38,575
Corporation
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (10,453)	$ (11,966)