Business Segments - Segment Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Net sales	$ 679,130	$ 698,408	$ 1,298,293	$ 1,299,904
Operating profit (loss)	31,671	32,763	58,102	59,218
Interest expense	(7,810)	(8,417)	(16,123)	(16,108)
Interest income	1,999	1,988	5,379	4,303
Other pension and postretirement benefit expense	(9,288)	(6,967)	(18,650)	(13,953)
Other non-operating expense	(1,463)	(1,391)	(84)	(3,050)
Income before income taxes	15,109	17,976	28,624	30,410
Americas Tire
Segment Reporting Information [Line Items]
Net sales	570,537	573,807	1,075,295	1,052,634
International Tire
Segment Reporting Information [Line Items]
Net sales	108,593	124,601	222,999	247,270
Operating Segments | Americas Tire
Segment Reporting Information [Line Items]
Net sales	582,307	584,412	1,097,243	1,069,804
Operating profit (loss)	46,814	40,480	85,603	71,715
Operating Segments | International Tire
Segment Reporting Information [Line Items]
Net sales	138,514	167,839	282,299	329,083
Operating profit (loss)	(1,296)	5,652	(2,635)	13,086
Intercompany
Segment Reporting Information [Line Items]
Net sales	(41,691)	(53,843)	(81,249)	(98,983)
Operating profit (loss)	(569)	336	(1,136)	87
Intercompany | Americas Tire
Segment Reporting Information [Line Items]
Net sales	11,770	10,605	21,948	17,170
Intercompany | International Tire
Segment Reporting Information [Line Items]
Net sales	29,921	43,238	59,300	81,813
Corporation
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (13,278)	$ (13,705)	$ (23,730)	$ (25,670)